@import"https://fonts.googleapis.com/css2?family=Google+Sans+Flex:wght@300..700&family=Material+Symbols+Outlined:opsz,wght,FILL,GRAD@24,400,0,0&family=Material+Symbols+Rounded:opsz,wght,FILL,GRAD@24,300..500,0,0&display=swap";.lesson-introduction{display:grid;gap:22px;width:100%;padding:8px 0 4px}.lesson-introduction-header{display:grid;max-width:680px;gap:8px}.lesson-introduction-kicker{color:var(--today-blue-deep);font-size:.78rem;font-weight:780;letter-spacing:.08em;text-transform:uppercase}.lesson-introduction-header h1{margin:0;font-size:clamp(1.8rem,4vw,2.5rem);letter-spacing:-.035em;line-height:1.08}.lesson-introduction-header p{max-width:640px;margin:0;color:var(--color-text-soft);font-size:.95rem;line-height:1.5}.lesson-introduction-goal{display:grid;grid-template-columns:auto minmax(0,1fr);align-items:start;gap:12px;padding:16px 18px;border:1px solid color-mix(in srgb,var(--today-blue) 20%,var(--color-border));border-radius:20px;background:color-mix(in srgb,var(--today-blue-soft) 58%,var(--color-surface))}.lesson-introduction-goal>.material-symbol{color:var(--today-blue-deep);font-size:1.35rem}.lesson-introduction-goal h2,.lesson-introduction-goal p{margin:0}.lesson-introduction-goal h2,.lesson-introduction-section h2{color:var(--color-text-soft);font-size:.76rem;font-weight:780;letter-spacing:.07em;text-transform:uppercase}.lesson-introduction-goal p{margin-top:5px;color:var(--color-text);font-weight:650;line-height:1.45}.lesson-introduction-brief{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));align-items:start;gap:24px}.lesson-introduction-grid{display:grid;grid-template-columns:minmax(0,1.1fr) minmax(280px,.9fr);gap:34px}.lesson-introduction-section{min-width:0}.lesson-introduction-section h2,.lesson-introduction-section p{margin:0}.lesson-introduction-section>p{margin-top:8px;color:var(--color-text-soft);line-height:1.55}.lesson-introduction-support{display:grid;align-content:start;gap:26px}.lesson-introduction-word-list{display:grid;gap:0;margin:18px 0 0}.lesson-introduction-word-list>div{display:grid;grid-template-columns:minmax(0,1fr) minmax(0,1fr);gap:18px;padding:12px 0;border-bottom:1px solid var(--color-border-soft)}.lesson-introduction-word-list>div:first-child{border-top:1px solid var(--color-border-soft)}.lesson-introduction-word-list dt,.lesson-introduction-word-list dd{min-width:0;margin:0;overflow-wrap:anywhere;line-height:1.4}.lesson-introduction-word-list dt{color:var(--color-text);font-weight:720}.lesson-introduction-word-list dd{color:var(--color-text-soft)}.lesson-introduction-word-list-brief{margin-top:10px}.lesson-introduction-word-list-brief>div{padding:8px 0}.lesson-introduction-example-list,.lesson-introduction-tip-list{display:grid;gap:8px;margin:10px 0 0;padding-left:20px;color:var(--color-text);line-height:1.5}.lesson-introduction-tip-list{color:var(--color-text-soft)}.lesson-introduction-actions{display:flex;justify-content:stretch;padding-top:2px}.lesson-introduction-continue{width:100%;min-height:52px;justify-content:center;gap:8px}.lesson-practice-guide{margin-top:16px;border-top:1px solid var(--color-border-soft)}.lesson-practice-guide>summary{display:flex;align-items:center;gap:8px;padding:16px 0;color:var(--color-text-soft);font-size:.9rem;font-weight:700;cursor:pointer;list-style:none}.lesson-practice-guide>summary::-webkit-details-marker{display:none}.lesson-practice-guide>summary:after{content:"expand_more";margin-left:auto;font-family:Material Symbols Rounded;font-size:1.25rem;transition:transform .16s ease}.lesson-practice-guide[open]>summary:after{transform:rotate(180deg)}.lesson-practice-guide>summary:focus-visible{border-radius:8px;outline:2px solid var(--color-accent);outline-offset:3px}.lesson-practice-guide>summary .material-symbol{font-size:1.15rem}.lesson-introduction-reference{gap:20px;padding:4px 0 24px}.lesson-introduction-reference .lesson-introduction-grid{gap:26px}@media(max-width:720px){.lesson-introduction{gap:18px;padding-top:2px}.lesson-introduction-header h1{font-size:clamp(1.72rem,8vw,2.1rem)}.lesson-introduction-brief{grid-template-columns:1fr;gap:18px}.lesson-introduction-grid{grid-template-columns:1fr;gap:22px}.lesson-introduction-word-list>div{gap:12px}.lesson-introduction-actions,.lesson-introduction-continue{width:100%}}@media(prefers-reduced-motion:reduce){.lesson-practice-guide>summary:after{transition:none}}.lesson-result{display:grid;gap:18px;width:100%;padding:18px 0 12px}.lesson-result-header{display:grid;justify-items:center;gap:6px;text-align:center}.lesson-result-illustration{display:block;width:72px;height:72px;margin-bottom:6px;color:var(--color-success);overflow:visible}.lesson-result-kicker{color:var(--color-success);font-size:.78rem;font-weight:780;letter-spacing:.08em;text-transform:uppercase}.lesson-result-header h1{margin:0;font-size:clamp(2.8rem,8vw,4rem);font-variant-numeric:tabular-nums;letter-spacing:-.06em;line-height:1}.lesson-result-stats{display:flex;flex-wrap:wrap;justify-content:center;gap:8px}.lesson-result-stat{display:inline-flex;min-height:38px;align-items:center;gap:7px;padding:0 13px;border:1px solid var(--color-border-soft);border-radius:12px;background:var(--color-surface)}.lesson-result-stat strong{color:var(--color-text);font-size:.86rem;font-variant-numeric:tabular-nums;font-weight:760}.lesson-result-stat span{color:var(--color-text-soft);font-size:.76rem;font-weight:650}.lesson-result-next{display:grid;grid-template-columns:auto minmax(0,1fr);align-items:center;gap:14px;padding:18px 20px;border:1px solid color-mix(in srgb,var(--today-blue) 24%,var(--color-border));border-radius:20px;background:color-mix(in srgb,var(--today-blue-soft) 58%,var(--color-surface))}.lesson-result-next>.material-symbol{color:var(--today-blue-deep);font-size:1.35rem}.lesson-result-next h2,.lesson-result-next p{margin:0}.lesson-result-next h2{color:var(--today-blue-deep);font-size:.76rem;font-weight:780;letter-spacing:.07em;text-transform:uppercase}.lesson-result-next p{margin-top:5px;color:var(--color-text);font-size:.92rem;font-weight:620;line-height:1.5}.lesson-result-details{border-top:1px solid var(--color-border-soft);border-bottom:1px solid var(--color-border-soft)}.lesson-result-details>summary{display:flex;min-height:48px;align-items:center;gap:9px;color:var(--color-text-soft);font-size:.84rem;font-weight:700;cursor:pointer;list-style:none}.lesson-result-details>summary::-webkit-details-marker{display:none}.lesson-result-details>summary:hover{color:var(--color-text)}.lesson-result-details>summary:focus-visible{border-radius:10px;outline:2px solid var(--color-accent);outline-offset:3px}.lesson-result-details>summary>.material-symbol{font-size:1.15rem}.lesson-result-details-chevron{margin-left:auto;transition:transform .16s ease}.lesson-result-details[open] .lesson-result-details-chevron{transform:rotate(180deg)}.lesson-result-insights{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:22px;padding:4px 0 20px}.lesson-result-insight{display:grid;grid-template-columns:auto minmax(0,1fr);align-items:start;gap:10px}.lesson-result-insight>.material-symbol{color:var(--today-blue-deep);font-size:1.15rem}.lesson-result-insight h2,.lesson-result-insight p{margin:0}.lesson-result-insight h2{font-size:.88rem}.lesson-result-insight p{margin-top:5px;color:var(--color-text-soft);font-size:.84rem;line-height:1.5}.lesson-result-insight ul{display:grid;gap:4px;margin:9px 0 0;padding-left:19px;color:var(--color-text);font-size:.82rem;line-height:1.4}.lesson-result-actions{display:flex;justify-content:flex-end;gap:10px;padding-top:2px}.lesson-result-actions .button{min-height:52px;justify-content:center;border-radius:16px;font-size:.9rem;font-weight:730}.lesson-result-secondary-action{min-width:142px;padding:0 20px}.lesson-result-primary-action{min-width:176px;gap:8px}@media(max-width:680px){.lesson-result{gap:16px;padding-top:8px}.lesson-result-illustration{width:64px;height:64px}.lesson-result-header h1{font-size:clamp(2.65rem,15vw,3.5rem)}.lesson-result-next{align-items:start;padding:16px}.lesson-result-insights{grid-template-columns:1fr;gap:18px}.lesson-result-actions{display:grid;grid-template-columns:1fr}.lesson-result-actions .button{width:100%}}@media(prefers-reduced-motion:reduce){.lesson-result-details-chevron{transition:none}}:root{color-scheme:light;--color-app-bg: #fbfbfd;--color-text: #1f1f1f;--color-text-soft: #3c4043;--color-muted: #5f6368;--color-surface: #ffffff;--color-panel: rgba(255, 255, 255, .92);--color-footer-bg: rgba(255, 255, 255, .74);--color-floating-nav: rgba(255, 255, 255, .88);--color-border: #dadce0;--color-border-soft: #eceff3;--color-hover-border: #c7ccd4;--color-hover-bg: #f8fafd;--color-segment-selected: #e5e7eb;--color-segment-selected-border: #d1d5db;--color-primary-bg: #111111;--color-primary-bg-hover: #000000;--color-primary-fg: #ffffff;--color-accent: #1a73e8;--color-accent-hover: #155fc4;--color-error: #b3261e;--color-error-bg: rgba(179, 38, 30, .07);--color-success: #137333;--color-streak-bg: #ebe9e5;--color-streak-icon: #96928a;--color-streak-text: #8d8981;--color-streak-active-bg: #fff0ea;--color-streak-active: #ff4b14;--color-word-bg: #ebe9e5;--color-word-icon: #96928a;--color-word-text: #8d8981;--color-word-active-bg: #eaf3ff;--color-word-active: #1a73e8;--color-word-active-soft: #00a6a6;--color-level-bg: #f0ecff;--color-level-text: #6941c6;--color-level-soft: rgba(105, 65, 198, .12);--color-speaking-bg: #e7f8f3;--color-speaking-text: #087f68;--color-speaking-icon-dark: #056451;--color-speaking-icon-soft: #5bcdb7;--shadow-panel: 0 18px 54px rgba(60, 64, 67, .1);--shadow-menu: 0 16px 44px rgba(60, 64, 67, .14);--shadow-floating-nav: 0 14px 38px rgba(31, 35, 41, .18);--app-footer-height: 72px;--app-viewport-height: 100vh;--focus-ring: rgba(26, 115, 232, .14);--backdrop-bg: rgba(248, 250, 253, .72);--skeleton-base: #e6e9ee;--skeleton-sheen: rgba(255, 255, 255, .72);--today-blue: #356fd9;--today-blue-deep: #2859be;--today-blue-soft: #eaf2ff;--today-blue-hero: #356fd9;--today-blue-hero-deep: #2859be;--today-mint: #16a686;--today-mint-soft: #e4f8f2;--today-coral: #f26b4a;--today-coral-soft: #fff0eb;--today-sky: #2185c5;--today-sky-soft: #eaf6ff;--ambient-core: radial-gradient( ellipse at 50% 50%, rgba(102, 132, 255, .46) 0%, rgba(66, 154, 238, .26) 28%, rgba(171, 95, 255, .16) 50%, transparent 74% );--ambient-spectrum: conic-gradient( from 220deg at 50% 52%, rgba(81, 126, 255, .28), rgba(39, 214, 198, .2), rgba(184, 92, 255, .24), rgba(255, 121, 171, .18), rgba(123, 211, 99, .16), rgba(81, 126, 255, .28) );--ambient-sheen: radial-gradient( ellipse at 44% 40%, rgba(255, 255, 255, .38), rgba(255, 255, 255, .08) 36%, transparent 66% );--ambient-opacity: .7;font-family:Google Sans Flex,Google Sans,Arial,ui-sans-serif,system-ui,-apple-system,BlinkMacSystemFont,Segoe UI,sans-serif;background:var(--color-app-bg);color:var(--color-text);font-synthesis:none;text-rendering:optimizeLegibility;-webkit-font-smoothing:antialiased}@supports (height: 100dvh){:root{--app-viewport-height: 100dvh}}.speaking-practice-badge{animation:speaking-badge-awaken .52s ease-out both}.speaking-practice-badge-icon{display:block;width:24px;height:22px;flex:0 0 auto;overflow:visible;animation:speaking-icon-pop .46s cubic-bezier(.2,1.2,.34,1) both;will-change:transform}.speaking-megaphone{transform-box:fill-box;transform-origin:44% 58%;animation:speaking-megaphone-call 1.35s ease-in-out .46s infinite}.speaking-megaphone-cone,.speaking-megaphone-back{fill:currentColor}.speaking-megaphone-handle,.speaking-megaphone-rim{fill:var(--color-speaking-icon-dark)}.speaking-megaphone-shade{fill:var(--color-speaking-icon-soft);opacity:.78}.speaking-megaphone-highlight{fill:var(--color-speaking-bg);opacity:.82}.speaking-sound-ray{fill:none;stroke:currentColor;stroke-width:1.8;stroke-linecap:round;transform-box:fill-box;transform-origin:left center}.speaking-sound-ray-inner{animation:speaking-sound-pulse 1.35s ease-out .46s infinite}.speaking-sound-ray-outer{opacity:.72;animation:speaking-sound-pulse 1.35s ease-out .61s infinite}.speaking-practice-badge:hover .speaking-megaphone,.speaking-practice-badge:hover .speaking-sound-ray{animation-duration:.82s}@keyframes speaking-badge-awaken{0%{box-shadow:0 0 #087f6800}42%{box-shadow:0 0 16px #087f6838}to{box-shadow:0 0 #087f6800}}@keyframes speaking-icon-pop{0%{opacity:.3;transform:translateY(3px) scale(.74)}60%{opacity:1;transform:translateY(-1px) rotate(-4deg) scale(1.12)}to{opacity:1;transform:translateY(0) rotate(0) scale(1)}}@keyframes speaking-megaphone-call{0%,to{transform:translateY(0) rotate(0)}38%{transform:translateY(-.8px) rotate(-4deg)}70%{transform:translateY(.4px) rotate(2deg)}}@keyframes speaking-sound-pulse{0%,to{opacity:.3;transform:scale(.82)}42%{opacity:1;transform:scale(1.04)}}@media(prefers-reduced-motion:reduce){.speaking-practice-badge,.speaking-practice-badge-icon,.speaking-megaphone,.speaking-sound-ray{animation:none}}:root[data-theme=dark]{color-scheme:dark;--color-app-bg: #111315;--color-text: #f1f3f4;--color-text-soft: #d7dade;--color-muted: #a8adb4;--color-surface: #1b1d20;--color-panel: rgba(30, 32, 36, .94);--color-footer-bg: rgba(17, 19, 21, .86);--color-floating-nav: rgba(32, 35, 40, .9);--color-border: #3b4048;--color-border-soft: #2c3138;--color-hover-border: #555c66;--color-hover-bg: #24282f;--color-segment-selected: #373b42;--color-segment-selected-border: #4a5059;--color-primary-bg: #f8fafc;--color-primary-bg-hover: #ffffff;--color-primary-fg: #111315;--color-accent: #8ab4f8;--color-accent-hover: #aecbfa;--color-error: #f2b8b5;--color-error-bg: rgba(242, 184, 181, .11);--color-success: #81c995;--color-streak-bg: #2d2d2b;--color-streak-icon: #96928a;--color-streak-text: #a6a199;--color-streak-active-bg: rgba(255, 75, 20, .18);--color-streak-active: #ff6a2a;--color-word-bg: #2d2d2b;--color-word-icon: #96928a;--color-word-text: #a6a199;--color-word-active-bg: rgba(138, 180, 248, .18);--color-word-active: #8ab4f8;--color-word-active-soft: #5eead4;--color-level-bg: rgba(167, 139, 250, .18);--color-level-text: #c4b5fd;--color-level-soft: rgba(196, 181, 253, .14);--color-speaking-bg: rgba(52, 211, 153, .16);--color-speaking-text: #6ee7b7;--color-speaking-icon-dark: #34d399;--color-speaking-icon-soft: #a7f3d0;--shadow-panel: 0 18px 54px rgba(0, 0, 0, .32);--shadow-menu: 0 18px 48px rgba(0, 0, 0, .36);--shadow-floating-nav: 0 16px 46px rgba(0, 0, 0, .46);--focus-ring: rgba(138, 180, 248, .22);--backdrop-bg: rgba(17, 19, 21, .72);--skeleton-base: #2c3138;--skeleton-sheen: rgba(255, 255, 255, .12);--today-blue: #78a6ff;--today-blue-deep: #5c88ee;--today-blue-soft: rgba(120, 166, 255, .16);--today-blue-hero: #356fd9;--today-blue-hero-deep: #244fa7;--today-mint: #54d6b5;--today-mint-soft: rgba(84, 214, 181, .14);--today-coral: #ff9475;--today-coral-soft: rgba(255, 148, 117, .14);--today-sky: #6ac0f0;--today-sky-soft: rgba(84, 174, 255, .13);--ambient-core: radial-gradient( ellipse at 50% 50%, rgba(61, 83, 223, .74) 0%, rgba(33, 88, 203, .48) 30%, rgba(78, 47, 162, .22) 53%, transparent 76% );--ambient-spectrum: conic-gradient( from 220deg at 50% 52%, rgba(75, 113, 255, .42), rgba(22, 211, 207, .22), rgba(151, 79, 255, .34), rgba(255, 92, 158, .2), rgba(91, 218, 147, .18), rgba(75, 113, 255, .42) );--ambient-sheen: radial-gradient( ellipse at 44% 39%, rgba(186, 210, 255, .14), rgba(118, 89, 255, .08) 38%, transparent 68% );--ambient-opacity: .86}*{box-sizing:border-box}html,body,#root{min-height:var(--app-viewport-height)}body{margin:0;min-width:320px;background:var(--color-app-bg);color:var(--color-text)}#root{background:var(--color-app-bg)}button,input,select,textarea{font:inherit}button{border:0}a{color:inherit;text-decoration:none}h1,h2,h3,p{margin-top:0}h1{margin-bottom:0;font-size:2.45rem;font-weight:500;letter-spacing:0;line-height:1.08}h2{margin-bottom:10px;font-size:1rem;font-weight:520;letter-spacing:0}p{color:var(--color-muted);line-height:1.55}.fluento-shell,.lesson-shell{display:flex;flex-direction:column;min-height:var(--app-viewport-height);padding-bottom:calc(var(--app-footer-height) + env(safe-area-inset-bottom));background:var(--color-app-bg)}.minimal-header{--header-control-size: 32px;position:relative;z-index:4;display:grid;grid-template-columns:minmax(0,1fr) auto minmax(0,1fr);width:min(1180px,calc(100% - 32px));min-height:76px;align-items:center;gap:18px;margin:0 auto;padding:14px 0}.brand-mark{display:inline-flex;flex:0 0 auto;align-items:center;color:var(--color-text);font-size:1.05rem;font-weight:520}.header-brand-group{display:inline-flex;min-width:0;grid-column:1;justify-self:start;align-items:center;gap:18px}.brand-mark img{display:block;width:118px;height:auto;transition:filter .16s ease}:root[data-theme=dark] .brand-mark img{filter:invert(1)}.header-actions,.user-cluster,.auth-controls,.action-row,.submit-row,.dialog-actions,.course-card-actions{display:flex;align-items:center;gap:10px}.header-actions{grid-column:3;justify-self:end;justify-content:flex-end;gap:14px}.header-create-course-button{display:inline-flex;width:var(--header-control-size);height:var(--header-control-size);min-width:var(--header-control-size);min-height:var(--header-control-size);align-items:center;justify-content:center;padding:0;border-radius:999px;background:var(--today-blue);color:#fff;cursor:pointer;font-size:.88rem;font-weight:650;white-space:nowrap;transition:background-color .16s ease,box-shadow .16s ease,transform .18s cubic-bezier(.2,1.2,.34,1)}.header-create-course-button:hover{background:var(--today-blue-deep);transform:translateY(-2px) rotate(4deg)}.header-create-course-button:focus-visible{outline:none;box-shadow:0 0 0 3px var(--focus-ring)}.header-create-course-button .material-symbol{font-size:1.2rem}.streak-badge{display:inline-flex;min-width:68px;height:var(--header-control-size, 32px);align-items:center;justify-content:center;gap:8px;padding:0 13px;border-radius:999px;background:var(--color-streak-bg);color:var(--color-streak-text);line-height:1;white-space:nowrap}.streak-badge.is-active{background:var(--color-streak-active-bg);color:var(--color-streak-active);animation:streak-badge-ignite .52s ease-out both}.streak-badge strong{color:var(--color-streak-text);font-size:1.02rem;font-weight:400}.streak-badge.is-active strong{color:var(--color-streak-active);font-weight:700}.streak-badge-icon{display:block;width:22px;height:22px;flex:0 0 auto;color:var(--color-streak-icon);overflow:visible;transform-box:fill-box;transform-origin:50% 82%}.streak-badge.is-active .streak-badge-icon{color:var(--color-streak-active);animation:streak-flame-ignite .46s cubic-bezier(.2,1.2,.34,1) both}.streak-flame-main,.streak-flame-inner{fill:currentColor;transform-box:fill-box;transform-origin:50% 82%}.streak-flame-inner{opacity:.58}.streak-badge.is-active .streak-flame-main{animation:streak-flame-burn 1.25s ease-in-out .46s infinite}.streak-badge.is-active .streak-flame-inner{animation:streak-flame-core .84s ease-in-out .46s infinite alternate}@keyframes streak-badge-ignite{0%{box-shadow:0 0 #ff4b1400}42%{box-shadow:0 0 16px #ff4b143d}to{box-shadow:0 0 #ff4b1400}}@keyframes streak-flame-ignite{0%{opacity:.28;transform:translateY(3px) scale(.72)}60%{opacity:1;transform:translateY(-1px) scale(1.12)}to{opacity:1;transform:translateY(0) scale(1)}}@keyframes streak-flame-burn{0%,to{transform:translate(0) scale(1)}35%{transform:translate(-.5px) scale(.95,1.08) rotate(-2deg)}70%{transform:translate(.6px) scale(1.05,.96) rotate(2deg)}}@keyframes streak-flame-core{0%{opacity:.4;transform:translateY(.8px) scale(.9,.96)}to{opacity:.82;transform:translateY(-.8px) scale(1.05,1.12)}}@media(prefers-reduced-motion:reduce){.streak-badge.is-active,.streak-badge.is-active .streak-badge-icon,.streak-badge.is-active .streak-flame-main,.streak-badge.is-active .streak-flame-inner,.course-switcher-button.is-active,.word-progress-badge.is-active,.word-progress-badge.is-active .word-progress-badge-icon,.word-progress-badge.is-active .word-dumbbell{animation:none}}.streak-badge-placeholder{visibility:hidden}.word-progress-badge{display:inline-flex;min-width:68px;height:32px;align-items:center;justify-content:center;gap:8px;padding:0 13px;border-radius:999px;background:var(--color-word-bg);color:var(--color-word-text);line-height:1;white-space:nowrap}.word-progress-badge-button{cursor:pointer;transition:background-color .16s ease,box-shadow .16s ease,transform .16s ease}.word-progress-badge-button:hover{transform:translateY(-1px)}.word-progress-badge-button:focus-visible{outline:none;box-shadow:0 0 0 3px var(--focus-ring)}.word-progress-badge.is-active{background:var(--color-word-active-bg);color:var(--color-word-active);animation:word-badge-charge .52s ease-out both}.word-progress-badge strong{color:var(--color-word-text);font-size:1.02rem;font-weight:400}.word-progress-badge.is-active strong{color:var(--color-word-active);font-weight:700}.word-progress-badge-icon{display:block;width:22px;height:22px;flex:0 0 auto;color:var(--color-word-icon);overflow:visible;transform-box:fill-box;transform-origin:50% 50%}.word-progress-badge.is-active .word-progress-badge-icon{color:var(--color-word-active);animation:word-dumbbell-ignite .46s cubic-bezier(.2,1.2,.34,1) both}.word-dumbbell{fill:currentColor;transform:rotate(-16deg);transform-box:fill-box;transform-origin:50% 50%}.word-dumbbell-plate,.word-dumbbell-inner,.word-dumbbell-bar{fill:currentColor}.word-dumbbell-inner,.word-dumbbell-bar{opacity:.72}.word-progress-badge.is-active .word-dumbbell{animation:word-dumbbell-lift 1.25s ease-in-out .46s infinite}.word-progress-badge.is-active .word-dumbbell-inner{fill:var(--color-word-active-soft);opacity:.92}.word-progress-badge.is-active .word-dumbbell-bar{opacity:.86}@keyframes word-badge-charge{0%{box-shadow:0 0 #1a73e800}42%{box-shadow:0 0 16px #1a73e838}to{box-shadow:0 0 #1a73e800}}@keyframes word-dumbbell-ignite{0%{opacity:.3;transform:translateY(3px) rotate(-8deg) scale(.74)}60%{opacity:1;transform:translateY(-2px) rotate(7deg) scale(1.12)}to{opacity:1;transform:translateY(0) rotate(0) scale(1)}}@keyframes word-dumbbell-lift{0%,to{transform:translateY(0) rotate(-16deg)}40%{transform:translateY(-1.5px) rotate(-10deg)}72%{transform:translateY(.8px) rotate(-18deg)}}.word-progress-badge-placeholder{visibility:hidden}.word-progress-menu{position:relative;display:inline-flex}.word-progress-dropdown{position:absolute;top:calc(100% + 8px);right:0;z-index:12;display:grid;min-width:190px;max-width:min(260px,calc(100vw - 24px));gap:4px;padding:6px;border:1px solid var(--color-border);border-radius:14px;background:var(--color-surface);box-shadow:var(--shadow-menu)}.word-progress-dropdown[hidden]{display:none}.word-progress-option{display:grid;min-height:40px;grid-template-columns:24px minmax(0,1fr) auto;align-items:center;gap:8px;padding:6px 8px;border-radius:10px;background:transparent;color:var(--color-text);cursor:pointer;text-align:left;transition:background-color .16s ease,color .16s ease}.word-progress-option:hover,.word-progress-option:focus-visible{outline:none;background:var(--color-hover-bg)}.word-progress-option-label{min-width:0;overflow:hidden;color:var(--color-text-soft);font-size:.9rem;text-overflow:ellipsis;white-space:nowrap}.word-progress-option strong{display:inline-flex;min-width:26px;justify-content:center;padding:3px 7px;border-radius:999px;background:var(--color-word-active-bg);color:var(--color-word-active);font-size:.82rem}.word-progress-option-flag{display:inline-flex;width:24px;height:24px;align-items:center;justify-content:center;overflow:hidden;border:1px solid var(--color-border);border-radius:50%;background:var(--color-surface)}.word-progress-option-flag img{display:block;width:100%;height:100%;object-fit:cover}.word-progress-option-flag-fallback{color:var(--color-muted)}.word-progress-option-flag-fallback .material-symbol{font-size:1rem}.speaking-practice-badge{display:inline-flex;min-width:112px;height:32px;align-items:center;justify-content:center;gap:7px;padding:0 12px;border-radius:999px;background:var(--color-speaking-bg);color:var(--color-speaking-text);cursor:pointer;line-height:1;white-space:nowrap;transition:transform .16s ease,box-shadow .16s ease}.speaking-practice-badge:hover{transform:translateY(-1px)}.speaking-practice-badge:focus-visible{outline:none;box-shadow:0 0 0 3px var(--focus-ring)}.speaking-practice-badge strong{font-size:.92rem;font-weight:700}.speaking-practice-badge-icon{font-size:20px}.speaking-practice-badge-placeholder{visibility:hidden}.level-progress-menu{position:relative;display:inline-flex}.level-progress-badge{display:inline-flex;min-width:68px;height:32px;align-items:center;justify-content:center;gap:7px;padding:0 12px;border-radius:999px;background:var(--color-level-bg);color:var(--color-level-text);cursor:pointer;line-height:1;white-space:nowrap;transition:transform .16s ease,box-shadow .16s ease}.level-progress-badge:hover{transform:translateY(-1px)}.level-progress-badge:focus-visible{outline:none;box-shadow:0 0 0 3px var(--focus-ring)}.level-progress-badge strong{color:currentColor;font-size:.95rem;font-weight:700}.level-progress-badge-icon{width:21px;height:21px;flex:0 0 auto;fill:currentColor}.level-progress-badge-placeholder{visibility:hidden}.level-progress-dropdown{position:absolute;top:calc(100% + 8px);right:0;z-index:14;width:min(390px,calc(100vw - 24px));max-height:min(680px,calc(100vh - 96px));overflow-y:auto;padding:12px;border:1px solid var(--color-border);border-radius:18px;background:var(--color-surface);box-shadow:var(--shadow-menu)}.level-progress-dropdown[hidden]{display:none}.level-progress-dropdown-title{padding:2px 2px 10px;color:var(--color-text);font-size:1rem;font-weight:650}.level-progress-course-list{display:grid}.level-progress-course{display:grid;gap:12px;padding:10px 0 20px}.level-progress-course+.level-progress-course{padding-top:20px;border-top:1px solid var(--color-border-soft)}.level-progress-course-header{display:grid;grid-template-columns:32px minmax(0,1fr) auto;align-items:center;gap:9px}.level-progress-flag{display:inline-flex;width:32px;height:32px;align-items:center;justify-content:center;overflow:hidden;border:1px solid var(--color-border);border-radius:50%;background:var(--color-surface)}.level-progress-flag img{width:100%;height:100%;object-fit:cover}.level-progress-flag-fallback{color:var(--color-muted)}.level-progress-course-heading{display:grid;min-width:0;gap:2px}.level-progress-course-heading strong{overflow:hidden;color:var(--color-text);font-size:.96rem;text-overflow:ellipsis;white-space:nowrap}.level-progress-course-heading span,.level-progress-remaining{color:var(--color-muted);font-size:.73rem}.level-progress-current-level{min-width:40px;padding:6px 8px;border-radius:9px;background:var(--color-level-bg);color:var(--color-level-text);font-size:.9rem;font-weight:700;text-align:center}.level-progress-overall{display:grid;gap:6px}.level-progress-overall-label{display:flex;align-items:baseline;justify-content:space-between;gap:12px;color:var(--color-text-soft);font-size:.8rem}.level-progress-overall-label strong{color:var(--color-level-text);font-size:.8rem}.level-progress-track{height:7px;overflow:hidden;border-radius:999px;background:var(--color-level-soft)}.level-progress-track>span{display:block;height:100%;border-radius:inherit;background:var(--color-level-text)}.level-progress-remaining{justify-self:end}.level-progress-skills{display:grid;gap:2px}.level-progress-skill{display:grid;min-height:30px;grid-template-columns:minmax(0,1fr) 34px;align-items:center;gap:8px;padding:3px 6px;border-radius:8px;color:var(--color-text-soft);font-size:.82rem}.level-progress-skill strong{color:var(--color-text);font-size:.82rem;text-align:right}.level-progress-focus,.level-progress-no-assessment{margin:0;padding-top:9px;border-top:1px solid var(--color-border-soft);color:var(--color-muted);font-size:.75rem;line-height:1.4}.level-progress-focus{display:-webkit-box;overflow:hidden;-webkit-box-orient:vertical;-webkit-line-clamp:2}.level-progress-focus strong{color:var(--color-text-soft)}.user-cluster{min-height:32px;min-width:0;color:var(--color-muted);font-size:.92rem}.auth-controls{min-height:32px}.user-cluster>span{max-width:220px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.auth-status{color:var(--color-muted);font-size:.92rem}.button{display:inline-flex;min-height:40px;align-items:center;justify-content:center;gap:8px;padding:0 16px;border-radius:999px;cursor:pointer;font-weight:520;letter-spacing:0;transition:transform .16s ease,background-color .16s ease,border-color .16s ease,color .16s ease,opacity .16s ease}.material-symbol{display:inline-flex;align-items:center;font-family:Material Symbols Rounded;font-size:1.25em;font-style:normal;font-weight:500;line-height:1}.button:hover{transform:translateY(-1px)}.button:disabled{cursor:not-allowed;opacity:.58;transform:none}.button-spinner{display:inline-block;width:16px;height:16px;flex:0 0 auto;border:2px solid currentColor;border-right-color:transparent;border-radius:50%;animation:button-spinner-rotate .72s linear infinite}@keyframes button-spinner-rotate{to{transform:rotate(360deg)}}.button-primary{background:var(--color-primary-bg);color:var(--color-primary-fg)}.button-primary:hover{background:var(--color-primary-bg-hover)}.button-blue{background:var(--color-accent);color:var(--color-primary-fg)}.button-blue:hover{background:var(--color-accent-hover)}.button-secondary{border:1px solid var(--color-border);background:var(--color-surface);color:var(--color-text)}.button-secondary:hover{border-color:var(--color-hover-border);background:var(--color-hover-bg)}.button-ghost{background:transparent;color:var(--color-muted)}.button-large{min-height:48px;padding:0 22px}.empty-course-state,.course-create-state,.auth-required-state,.course-home{position:relative;display:grid;flex:1;min-height:0;place-items:center;padding:32px 16px 80px}.empty-course-state,.course-create-state,.auth-required-state{overflow:hidden}.ambient-gradient{position:fixed;z-index:0;top:50%;left:50%;width:min(1240px,108vw);height:min(680px,74vh);border-radius:999px;opacity:0;pointer-events:none;transform:translate3d(-50%,-50%,0);animation:ambient-appear .9s cubic-bezier(.16,1,.3,1) .12s forwards;will-change:opacity}.ambient-gradient:before,.ambient-gradient:after{position:absolute;border-radius:inherit;content:""}.ambient-gradient:before{inset:0;background:var(--ambient-core),var(--ambient-spectrum);filter:blur(42px) saturate(1.18);transform:scale(.98);animation:ambient-breathe 12s ease-in-out .9s infinite alternate}.ambient-gradient:after{inset:6% 8%;background:var(--ambient-sheen),var(--ambient-spectrum);filter:blur(66px) saturate(1.24);opacity:.56;transform:rotate(-5deg) scale(.92);animation:ambient-shift 16s ease-in-out .9s infinite alternate}.ambient-gradient.compact{width:min(1180px,108vw);height:min(640px,72vh)}@keyframes ambient-appear{0%{opacity:0;filter:blur(10px)}to{opacity:var(--ambient-opacity);filter:blur(0)}}@keyframes ambient-breathe{0%{transform:translate3d(-16px,8px,0) scale(.98)}to{transform:translate3d(18px,-10px,0) scale(1.05)}}@keyframes ambient-shift{0%{transform:rotate(-7deg) translate3d(22px,-8px,0) scale(.92)}to{transform:rotate(8deg) translate3d(-20px,12px,0) scale(1.03)}}.empty-course-content{position:relative;z-index:1;display:grid;justify-items:center;gap:28px;text-align:center}.course-list{position:relative;z-index:1;display:grid;width:min(1180px,100%);gap:18px}.course-list>.course-form{justify-self:center}.course-switcher{position:relative;z-index:3;display:flex;height:var(--header-control-size, 32px);max-width:min(34vw,360px);align-items:center;gap:2px;overflow-x:auto;overflow-y:hidden;padding:3px;border-radius:999px;background:var(--color-streak-bg);scrollbar-width:none}.course-switcher::-webkit-scrollbar{display:none}.course-switcher-button{display:inline-flex;width:26px;height:26px;flex:0 0 auto;align-items:center;justify-content:center;padding:0;border:1px solid transparent;border-radius:50%;background:transparent;color:var(--color-muted);cursor:pointer;font-size:.86rem;font-weight:700;transition:background-color .16s ease,border-color .16s ease,color .16s ease,transform .18s cubic-bezier(.2,1.2,.34,1)}.course-switcher-button:hover{background:var(--color-streak-active-bg);transform:translateY(-1px) rotate(-2deg)}.course-switcher-button.is-active{background:var(--color-streak-active-bg);border-color:var(--color-streak-active);color:var(--color-streak-active);animation:course-switcher-active-pulse 1.8s ease-in-out infinite}.course-switcher-button:focus-visible{outline:2px solid var(--color-accent);outline-offset:1px}.course-switcher-flag{display:inline-flex;width:22px;height:22px;align-items:center;justify-content:center;overflow:hidden;border:1px solid var(--color-border);border-radius:50%;background:var(--color-surface)}.course-switcher-flag img{display:block;width:100%;height:100%;object-fit:cover}.course-switcher-flag-fallback{color:var(--color-muted)}.course-switcher-flag-fallback .material-symbol{font-size:1.05rem}@keyframes course-switcher-active-pulse{0%,to{background-color:var(--color-streak-active-bg);border-color:var(--color-streak-active)}50%{background-color:#ff4b143d;border-color:transparent}}.course-card,.auth-required-panel,.lesson-launch-card{border:0;border-radius:28px;background:var(--color-panel);box-shadow:var(--shadow-panel)}.course-card{position:relative;z-index:1;display:grid;width:min(720px,100%);gap:28px;padding:28px}.auth-required-panel{position:relative;z-index:1;display:grid;width:min(560px,100%);justify-items:center;gap:18px;padding:32px;text-align:center}.auth-required-panel h1{font-size:2rem}.auth-required-panel p{max-width:420px;margin-bottom:0}.sr-only{position:absolute;width:1px;height:1px;overflow:hidden;clip:rect(0,0,0,0);clip-path:inset(50%);white-space:nowrap}.course-card-main{display:grid;gap:10px}.course-card-top{display:flex;align-items:center;justify-content:space-between;gap:16px}.course-language-route{display:inline-flex;width:max-content;align-items:center;gap:8px}.course-language-flag{display:inline-flex;width:30px;height:30px;flex:0 0 auto;align-items:center;justify-content:center;overflow:hidden;border:1px solid var(--color-border);border-radius:50%;background:var(--color-surface);box-shadow:0 2px 8px #3c404314}.course-language-flag img{display:block;width:100%;height:100%;object-fit:cover}.course-language-flag-fallback{color:var(--color-muted)}.course-language-flag-fallback .material-symbol{font-size:1.08rem}.course-language-arrow{color:var(--color-muted);font-size:1.04rem}.course-card-controls{display:inline-flex;flex:0 0 auto;align-items:center;gap:8px}.icon-button{display:inline-flex;width:40px;height:40px;align-items:center;justify-content:center;border:1px solid var(--color-border);border-radius:50%;background:var(--color-surface);color:var(--color-muted);cursor:pointer;transition:background-color .16s ease,border-color .16s ease,color .16s ease,transform .16s ease}.icon-button .material-symbol{font-size:1.2rem}.icon-button:hover{border-color:var(--color-hover-border);background:var(--color-hover-bg);color:var(--color-text);transform:translateY(-1px)}.icon-button-danger:hover{border-color:#b3261e2e;background:var(--color-error-bg);color:var(--color-error)}.course-card-main p{max-width:560px;margin-bottom:0}.course-inline-settings{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:8px}.course-skill-assessment{display:grid;gap:12px;padding-top:22px;border-top:1px solid var(--color-border-soft)}.course-skill-assessment-heading{display:flex;align-items:center;justify-content:space-between;gap:16px}.course-skill-assessment-heading>div{display:grid;gap:2px}.course-skill-assessment-heading span:first-child{color:var(--color-muted);font-size:.72rem}.course-skill-assessment-heading strong{font-size:1rem;font-weight:620}.course-skill-assessment-heading>.material-symbol{color:var(--color-level-text);font-size:1.25rem}.course-skill-assessment>p{margin:0;font-size:.8rem;line-height:1.4}.course-skill-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:8px}.course-skill-level{display:grid;min-height:58px;align-content:center;gap:3px;padding:10px 12px;border:1px solid var(--color-border-soft);border-radius:14px;background:color-mix(in srgb,var(--color-level-bg) 38%,var(--color-surface))}.course-skill-level span{color:var(--color-muted);font-size:.72rem}.course-skill-level strong{color:var(--color-level-text);font-size:1rem;font-weight:680}.inline-course-setting{position:relative;min-width:0}.inline-course-setting-trigger,.inline-course-text-editor{display:grid;width:100%;min-height:64px;grid-template-columns:minmax(0,1fr) auto;align-content:center;align-items:center;gap:3px 8px;padding:10px 12px;border:1px solid var(--color-border-soft);border-radius:14px;background:var(--color-surface);color:var(--color-text);cursor:pointer;text-align:left;transition:border-color .16s ease,background-color .16s ease,box-shadow .16s ease}.inline-course-setting-trigger:hover,.inline-course-setting-trigger[aria-expanded=true]{border-color:var(--color-hover-border);background:var(--color-hover-bg)}.inline-course-setting-trigger:focus-visible,.inline-course-text-editor:focus-within{outline:none;box-shadow:0 0 0 3px var(--focus-ring)}.inline-course-setting-trigger>span:first-child,.inline-course-text-editor label>span{grid-column:1;color:var(--color-muted);font-size:.72rem}.inline-course-setting-trigger strong{grid-column:1;overflow:hidden;font-size:.88rem;font-weight:560;text-overflow:ellipsis;white-space:nowrap}.inline-course-setting-trigger>.material-symbol{grid-column:2;grid-row:1 / span 2;color:var(--color-muted);font-size:1.05rem}.inline-course-setting-menu{position:absolute;z-index:18;top:calc(100% + 6px);right:0;display:grid;width:max-content;min-width:100%;max-width:min(260px,calc(100vw - 24px));max-height:280px;gap:2px;overflow-y:auto;padding:5px;border:1px solid var(--color-border);border-radius:12px;background:var(--color-surface);box-shadow:var(--shadow-menu)}.inline-course-setting-menu[hidden]{display:none}.inline-course-setting-menu button{display:grid;min-height:38px;grid-template-columns:minmax(0,1fr) 18px;align-items:center;gap:8px;padding:6px 9px;border-radius:8px;background:transparent;color:var(--color-text-soft);cursor:pointer;text-align:left}.inline-course-setting-menu button:hover,.inline-course-setting-menu button.is-active,.inline-course-setting-menu button:focus-visible{outline:none;background:var(--color-hover-bg);color:var(--color-text)}.inline-course-setting-menu .material-symbol{color:var(--color-accent);font-size:1rem}.inline-course-text-trigger{grid-column:1 / -1}.inline-course-text-editor{grid-column:1 / -1;grid-template-columns:minmax(0,1fr) 32px;cursor:default}.inline-course-text-editor label{display:grid;gap:3px}.inline-course-text-editor input{width:100%;padding:0;border:0;outline:0;background:transparent;color:var(--color-text);font-size:.88rem}.inline-course-text-editor button{display:inline-flex;width:32px;height:32px;align-items:center;justify-content:center;border-radius:50%;background:var(--color-primary-bg);color:var(--color-primary-fg);cursor:pointer}.muted-line{color:var(--color-muted);font-size:.9rem;line-height:1.35}.course-metrics{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:1px;overflow:hidden;border:1px solid var(--color-border-soft);border-radius:18px;background:var(--color-border-soft)}.metric-item{display:grid;min-height:72px;align-content:center;gap:5px;padding:12px;background:var(--color-surface)}.metric-item span{color:var(--color-muted);font-size:.82rem}.metric-item strong{color:var(--color-text);font-size:1.18rem;font-weight:560}.course-card-actions{justify-content:space-between}.course-card-action-buttons{display:flex;align-items:center;gap:10px}.course-loading-card{pointer-events:none}.skeleton-route{display:inline-flex;align-items:center;gap:8px}.skeleton-line,.skeleton-circle,.skeleton-button{display:block;overflow:hidden;background:linear-gradient(90deg,transparent,var(--skeleton-sheen),transparent),var(--skeleton-base);background-size:220% 100%,100% 100%;animation:skeleton-shimmer 1.35s ease-in-out infinite}.skeleton-line{height:14px;border-radius:999px}.skeleton-circle{width:30px;height:30px;flex:0 0 auto;border-radius:50%}.skeleton-control{width:40px;height:40px}.skeleton-line-icon{width:18px;height:12px}.skeleton-title{width:min(360px,82%);height:42px;border-radius:12px}.skeleton-copy{width:min(430px,76%)}.skeleton-metric{background:var(--color-surface)}.skeleton-label{width:72%;height:11px}.skeleton-value{width:42%;height:20px}.skeleton-button{width:124px;height:40px;flex:0 0 auto;border-radius:999px}@keyframes skeleton-shimmer{0%{background-position:180% 0,0 0}to{background-position:-80% 0,0 0}}.modal-backdrop{position:fixed;z-index:10;inset:0;display:grid;place-items:center;overflow-y:auto;padding:24px 16px;background:var(--backdrop-bg);-webkit-backdrop-filter:blur(12px);backdrop-filter:blur(12px)}.dialog-actions{justify-content:space-between}.course-form .dialog-actions{justify-content:flex-end}.form-grid,.skill-grid{display:grid;gap:12px}.two-columns{grid-template-columns:repeat(2,minmax(0,1fr))}.skill-grid{grid-template-columns:repeat(5,minmax(96px,1fr))}.field-control{display:grid;gap:7px}.course-overall-level{max-width:360px}.course-overall-level small{color:var(--color-muted);font-size:.8rem;line-height:1.45}.field-control span{color:var(--color-muted);font-size:.86rem}.field-control input,.field-control select,.field-control textarea{width:100%;min-height:44px;border:1px solid var(--color-border);border-radius:8px;outline:none;background:var(--color-surface);color:var(--color-text);padding:0 12px}.field-control textarea{min-height:92px;padding:12px;resize:vertical;line-height:1.45}.field-control input:focus,.field-control select:focus,.field-control textarea:focus{border-color:var(--color-accent);box-shadow:0 0 0 3px var(--focus-ring)}.compact-field select{min-height:40px}.lesson-shell{overflow-x:hidden}.lesson-shell-embedded{min-height:0;padding-bottom:0;overflow:visible;background:transparent}.lesson-shell-embedded .lesson-home{padding:0}.lesson-shell-embedded .lesson-page-content{gap:20px}.lesson-shell-embedded .lesson-launch-card,.lesson-shell-embedded .lesson-details{border-radius:24px;background:var(--color-panel);box-shadow:var(--shadow-panel)}.lesson-shell-embedded .lesson-details{padding:28px}.lesson-home{position:relative;display:grid;flex:1;min-height:0;justify-items:center;align-content:start;padding:8px 16px 64px}.lesson-page-content{position:relative;z-index:1;display:flex;min-height:0;flex-direction:column;width:min(720px,100%);gap:28px}.lesson-page-navigation{display:flex;align-items:center;min-height:42px}.lesson-back-button{flex:0 0 auto}.lesson-title-prefix{font-weight:300}.lesson-launch-card{padding:28px}.profile-summary,.chunk-list{display:flex;flex-wrap:wrap;gap:10px}.profile-summary{margin-bottom:18px}.profile-summary span,.chunk-list span{display:inline-flex;min-height:42px;align-items:center;border:1px solid var(--color-border-soft);border-radius:999px;background:var(--color-surface);color:var(--color-text-soft);font-size:.95rem;line-height:1.25;padding:0 14px}.lesson-details{display:grid;gap:32px}.lesson-overview{display:grid;gap:6px}.lesson-overview h2{overflow-wrap:anywhere}.lesson-overview p{color:var(--color-muted);line-height:1.55}.lesson-launch-card{display:flex;align-items:center;justify-content:space-between;gap:14px}.handoff-copy-button{width:40px;min-width:40px;padding:0}.handoff-copy-button .material-symbol{font-size:1.14rem}.lesson-practice-shell{display:flex;flex-direction:column;min-height:var(--app-viewport-height);padding-bottom:calc(var(--app-footer-height) + env(safe-area-inset-bottom));background:var(--color-app-bg);overflow-x:hidden}.vocabulary-trainer-shell{display:flex;min-height:var(--app-viewport-height);flex-direction:column;padding-bottom:calc(var(--app-footer-height) + env(safe-area-inset-bottom));overflow-x:hidden;background:var(--color-app-bg)}.vocabulary-trainer-home{display:grid;width:min(720px,calc(100% - 32px));flex:1;align-content:start;gap:24px;margin:0 auto;padding:8px 0 64px}.vocabulary-trainer-session-top{display:grid;width:100%;gap:10px}.vocabulary-trainer-level-label{color:var(--color-text-soft);font-size:.86rem;font-weight:700;letter-spacing:.01em;text-align:center}.vocabulary-trainer-progress-header{padding:0 0 4px}.vocabulary-trainer-remaining-count{min-width:88px}.vocabulary-trainer-session{display:grid;justify-items:center;gap:22px}.vocabulary-trainer-card.word-card-single,.vocabulary-trainer-card .word-card-inner,.vocabulary-trainer-card .word-card-face{min-height:360px}.vocabulary-trainer-card{border-radius:28px}.vocabulary-trainer-card .word-card-face{display:flex;align-items:center;justify-content:center;flex-direction:column;gap:20px;overflow:hidden;border-radius:28px;font-weight:690;letter-spacing:-.035em}.vocabulary-trainer-card-copy{position:absolute;inset:0;display:flex;align-items:center;justify-content:center;flex-direction:column;gap:20px;padding:40px;text-align:center}.vocabulary-trainer-card .word-card-front{border-color:transparent;background:linear-gradient(145deg,var(--today-blue-hero) 0%,var(--today-blue-hero-deep) 100%);box-shadow:0 7px color-mix(in srgb,var(--today-blue-hero-deep) 72%,#16356f);color:#fff}.vocabulary-trainer-card .word-card-back{border-color:color-mix(in srgb,var(--today-blue) 42%,var(--color-border));background:var(--today-blue-soft);box-shadow:0 7px color-mix(in srgb,var(--today-blue) 24%,var(--color-border-soft));color:var(--color-text)}.word-card.vocabulary-trainer-card:hover .word-card-face.word-card-front{border-color:transparent;box-shadow:0 4px color-mix(in srgb,var(--today-blue-hero-deep) 72%,#16356f)}.word-card.vocabulary-trainer-card:hover .word-card-face.word-card-back{border-color:color-mix(in srgb,var(--today-blue) 42%,var(--color-border));box-shadow:0 4px color-mix(in srgb,var(--today-blue) 24%,var(--color-border-soft))}.word-card.vocabulary-trainer-card:focus-visible .word-card-face.word-card-front{border-color:transparent;box-shadow:0 7px color-mix(in srgb,var(--today-blue-hero-deep) 72%,#16356f),0 0 0 3px color-mix(in srgb,var(--today-blue) 32%,transparent)}.word-card.vocabulary-trainer-card:focus-visible .word-card-face.word-card-back{border-color:var(--today-blue);box-shadow:0 7px color-mix(in srgb,var(--today-blue) 24%,var(--color-border-soft)),0 0 0 3px color-mix(in srgb,var(--today-blue) 28%,transparent)}.vocabulary-trainer-card .word-card-face small{color:#ffffffb8;font-size:.76rem;font-weight:720;letter-spacing:.08em;text-transform:uppercase}.vocabulary-trainer-reveal-count{position:absolute;z-index:2;left:50%;bottom:26px;display:inline-flex;align-items:center;justify-content:center;gap:6px;color:#ffffffe0;font-variant-numeric:tabular-nums;transform:translate(-50%)}.word-card-back .vocabulary-trainer-reveal-count{color:var(--today-blue-deep)}.vocabulary-trainer-reveal-count-icon{display:block;width:22px;height:22px;flex:0 0 auto;overflow:visible}.vocabulary-trainer-reveal-count-bolt{fill:currentColor}.vocabulary-trainer-reveal-count strong{min-width:1ch;color:inherit;font-size:1rem;font-weight:800;line-height:1;text-align:center}.vocabulary-trainer-card.is-flipped .vocabulary-trainer-reveal-count-icon{animation:vocabulary-reveal-count-pop .36s cubic-bezier(.2,1.2,.34,1) both}@keyframes vocabulary-reveal-count-pop{0%{opacity:.55;transform:scale(.72) rotate(-10deg)}65%{opacity:1;transform:scale(1.12) rotate(4deg)}to{opacity:1;transform:scale(1) rotate(0)}}@media(prefers-reduced-motion:reduce){.vocabulary-trainer-card.is-flipped .vocabulary-trainer-reveal-count-icon{animation:none}}.vocabulary-trainer-known-button{display:inline-flex;min-height:48px;align-items:center;justify-content:center;padding:0 22px;border-radius:14px;box-shadow:0 3px 0 var(--color-border-soft);font-weight:720}.vocabulary-trainer-known-button:hover:not(:disabled),.vocabulary-trainer-known-button:focus-visible:not(:disabled){box-shadow:0 2px 0 var(--color-border-soft)}.vocabulary-trainer-known-button:disabled{opacity:.55}.vocabulary-trainer-state{display:grid;min-height:390px;place-content:center;justify-items:center;gap:14px;text-align:center}.vocabulary-trainer-state h1,.vocabulary-trainer-state p{margin:0}.vocabulary-trainer-state p{max-width:480px;color:var(--color-text-soft)}.vocabulary-trainer-state-icon{color:var(--color-error);font-size:3rem}.vocabulary-trainer-complete{width:min(620px,100%);min-height:0;margin:clamp(28px,7vh,72px) auto 0;padding:clamp(36px,7vw,56px);border:1px solid color-mix(in srgb,var(--today-blue) 24%,var(--color-border-soft));border-radius:28px;background:var(--color-surface);box-shadow:0 7px color-mix(in srgb,var(--today-blue) 18%,var(--color-border-soft))}.vocabulary-trainer-complete h1{font-size:clamp(2rem,5vw,3.2rem);font-weight:700;letter-spacing:-.04em;line-height:1.05}.vocabulary-trainer-complete p{font-size:1rem;line-height:1.55}.vocabulary-trainer-complete-mark{display:grid;width:72px;height:72px;place-items:center;margin-bottom:8px;border-radius:22px;background:linear-gradient(145deg,var(--today-blue-hero) 0%,var(--today-blue-hero-deep) 100%);box-shadow:0 5px color-mix(in srgb,var(--today-blue-hero-deep) 78%,#16356f)}.vocabulary-trainer-complete-mark svg{width:42px;height:42px;overflow:visible}.vocabulary-trainer-complete-mark path{fill:none;stroke:#fff;stroke-linecap:round;stroke-linejoin:round;stroke-width:4.5}.vocabulary-trainer-finish-button{min-width:196px;margin-top:12px}.word-learning-shell{display:flex;min-height:var(--app-viewport-height);flex-direction:column;padding-bottom:calc(var(--app-footer-height) + env(safe-area-inset-bottom));background:var(--color-app-bg)}.word-learning-home{display:grid;flex:1;align-content:start;justify-items:center;padding:34px 16px 64px}.word-learning-course-list{display:grid;width:min(760px,100%);grid-template-columns:repeat(auto-fit,minmax(210px,220px));justify-content:center;gap:14px}.word-learning-course-card{display:grid;width:100%;aspect-ratio:1;grid-template-rows:auto auto auto auto;align-content:space-between;justify-items:center;gap:12px;padding:22px;border:1px solid var(--color-border-soft);border-radius:20px;background:var(--color-surface);box-shadow:0 10px 30px #3c40430f}.word-learning-course-card>strong{min-width:0;color:var(--color-text);font-size:1.05rem;font-weight:600;text-align:center;overflow-wrap:anywhere}.word-learning-course-card>.button{width:100%}.word-learning-course-flag{display:inline-flex;width:54px;height:54px;align-items:center;justify-content:center;overflow:hidden;border:1px solid var(--color-border);border-radius:50%;background:var(--color-surface);color:var(--color-muted)}.word-learning-course-flag img{display:block;width:100%;height:100%;object-fit:cover}.word-learning-levels{display:grid;width:min(1080px,100%);gap:24px}.word-learning-language-heading{display:flex;align-items:center;gap:14px}.word-learning-language-heading>div{display:grid;gap:2px}.word-learning-language-heading>div>span,.word-learning-method-kicker{color:var(--color-accent);font-size:.76rem;font-weight:800;letter-spacing:.08em;text-transform:uppercase}.word-learning-language-heading h3,.word-learning-method h3{margin:0;color:var(--color-text)}.word-learning-language-heading h3{font-size:1.4rem}.word-learning-method{display:grid;grid-template-columns:58px minmax(0,1fr) auto;align-items:start;column-gap:18px;row-gap:12px;padding:22px 24px;border:1px solid var(--color-border-soft);border-radius:22px;background:var(--color-surface)}.word-learning-method-illustration{display:block;grid-column:1;grid-row:1 / span 2;width:58px;height:58px;color:var(--color-accent);overflow:visible}.word-learning-method-toggle:focus-visible{border-radius:10px;outline:3px solid var(--focus-ring);outline-offset:4px}.word-learning-method-heading{display:grid;grid-column:2;gap:5px}.word-learning-method-toggle{display:inline-grid;grid-column:3;grid-template-columns:auto 32px;min-height:44px;align-items:center;align-self:center;gap:10px;padding:4px 6px 4px 12px;border:0;border-radius:999px;background:color-mix(in srgb,var(--color-accent) 6%,transparent);color:inherit;font:inherit;text-align:left;cursor:pointer}.word-learning-method-toggle:hover{background:color-mix(in srgb,var(--color-accent) 11%,transparent)}.word-learning-method-toggle-label{color:var(--color-accent);font-size:.82rem;font-weight:750;white-space:nowrap}.word-learning-method-chevron{display:inline-grid;width:32px;height:32px;place-items:center;border-radius:50%;background:color-mix(in srgb,var(--color-accent) 10%,var(--color-surface));color:var(--color-accent);transition:transform .16s ease}.word-learning-method-toggle[aria-expanded=true] .word-learning-method-chevron{transform:rotate(180deg)}.word-learning-method-details{display:grid;grid-column:2 / -1;gap:8px}.word-learning-method-details[hidden]{display:none}.word-learning-method p{max-width:850px;margin:0;color:var(--color-text-soft);line-height:1.55}.word-learning-method-note{font-size:.82rem}@media(prefers-reduced-motion:reduce){.word-learning-method-chevron{transition:none}}.word-learning-level-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(180px,1fr));gap:14px}.word-learning-level-card{display:grid;min-height:270px;align-content:space-between;gap:18px;padding:20px;border:1px solid var(--color-border-soft);border-radius:24px;background:var(--color-surface);box-shadow:0 3px 0 var(--color-border-soft)}.word-learning-level-card.is-complete{border-color:color-mix(in srgb,var(--color-success) 42%,var(--color-border-soft));background:color-mix(in srgb,var(--color-success) 4%,var(--color-surface))}.word-learning-level-card-heading{display:flex;align-items:center;justify-content:space-between}.word-learning-level-card-heading>span:first-child{display:inline-grid;width:50px;height:50px;place-items:center;border-radius:16px;background:color-mix(in srgb,var(--color-accent) 10%,var(--color-surface));color:var(--color-accent);font-size:1.14rem;font-weight:850}.word-learning-level-percent{color:var(--color-muted);font-size:.8rem;font-weight:750}.word-learning-level-check{color:var(--color-success);font-size:1.65rem}.word-learning-level-card strong{color:var(--color-text);font-size:1rem}.word-learning-level-card p{margin:4px 0 0;color:var(--color-muted);font-size:.82rem}.word-learning-level-progress{height:7px;overflow:hidden;border-radius:999px;background:var(--color-hover-bg)}.word-learning-level-progress span{display:block;height:100%;border-radius:inherit;background:var(--color-accent)}.word-learning-level-card .word-learning-level-target{margin-top:-10px}.word-learning-level-card .button{width:100%;border-radius:14px;font-weight:700}.word-learning-level-card .button:focus-visible{outline:3px solid var(--focus-ring);outline-offset:2px}.word-level-picker{display:grid;width:100%;grid-template-columns:38px 1fr 38px;align-items:center;overflow:hidden;border:1px solid var(--color-border-soft);border-radius:999px;background:var(--color-hover-bg)}.word-level-picker button{display:inline-flex;height:38px;align-items:center;justify-content:center;background:transparent;color:var(--color-text-soft);cursor:pointer}.word-level-picker button:disabled{color:var(--color-border);cursor:default}.word-level-picker button:not(:disabled):hover,.word-level-picker button:not(:disabled):focus-visible{outline:none;background:var(--color-surface)}.word-level-picker>span{color:var(--color-text);font-size:.95rem;font-weight:700;text-align:center}.word-learning-add-button{min-width:140px;margin-top:22px}.lesson-practice-home{display:grid;flex:1;min-height:0;align-content:start;justify-items:center;padding:8px 16px 48px;background:var(--color-app-bg)}.lesson-practice-state,.lesson-practice-form{display:grid;gap:16px}.lesson-practice-form{margin-top:0}.lesson-practice-session-header{display:grid;width:100%;grid-template-columns:40px minmax(0,1fr) auto;align-items:center;gap:18px;padding:0 0 4px}.lesson-practice-close-button{display:inline-flex;width:40px;height:40px;align-items:center;justify-content:center;padding:0;border:0;border-radius:10px;background:transparent;color:var(--color-muted);cursor:pointer;transition:background-color .16s ease,color .16s ease}.lesson-practice-close-button:hover{background:var(--color-hover-bg);color:var(--color-text)}.lesson-practice-close-button:focus-visible{outline:2px solid var(--color-accent);outline-offset:2px}.lesson-practice-close-button .material-symbol{font-size:1.7rem}.lesson-practice-step-progress{width:100%}.lesson-practice-progress-track{height:12px;overflow:hidden;border-radius:999px;background:var(--color-segment-selected)}.lesson-practice-progress-track span{display:block;height:100%;border-radius:inherit;background:var(--color-accent);transition:width .22s ease}.lesson-practice-step-count{min-width:54px;color:var(--color-text-soft);font-size:.86rem;font-variant-numeric:tabular-nums;font-weight:700;text-align:right;white-space:nowrap}.word-card-list{display:grid;grid-template-columns:repeat(auto-fit,minmax(220px,1fr));gap:16px;width:100%;margin-top:28px}.word-review{display:grid;justify-items:center;gap:20px;width:100%;margin-top:28px}.word-review-progress{margin:0;color:var(--color-text-soft);font-size:.95rem}.word-card-single{width:min(620px,100%);min-height:330px;cursor:pointer}.word-card-single .word-card-inner{min-height:330px}.word-card-single .word-card-face{min-height:330px;padding:40px;font-size:clamp(2.4rem,7vw,5rem)}.word-card-single .word-card-back{background:var(--color-hover-bg)}.word-review-actions{display:grid;grid-template-columns:1fr 1fr;gap:16px;width:min(620px,100%)}.word-review-actions .button{min-height:54px;justify-content:center;gap:8px}.word-review-completed{display:grid;justify-items:center;gap:12px;width:min(620px,100%);margin:80px auto 0;text-align:center}.word-review-completed h2,.word-review-completed p{margin:0}.word-review-completed-icon{color:var(--color-success);font-size:4rem}.word-review-completed .action-row{justify-content:center;width:100%;margin-top:16px}.word-card{min-height:168px;padding:0;border:0;border-radius:20px;background:transparent;color:var(--color-text);cursor:pointer;perspective:900px}.word-card-inner{position:relative;display:block;width:100%;height:168px;transform-style:preserve-3d;transition:transform .34s ease}.word-card.is-flipped .word-card-inner{transform:rotateY(180deg)}.word-card-face{position:absolute;inset:0;display:grid;place-items:center;padding:24px;border:1px solid var(--color-border);border-radius:20px;backface-visibility:hidden;background:var(--color-surface);box-shadow:0 8px 22px #18263a14;font-size:clamp(1.15rem,2vw,1.5rem);font-weight:650;line-height:1.3;text-align:center}.word-card-back{transform:rotateY(180deg);background:var(--color-hover-bg)}.word-card:hover .word-card-face{border-color:var(--color-hover-border)}.word-card:focus-visible{outline:0}.word-card:focus-visible .word-card-face{border-color:var(--color-accent);box-shadow:0 0 0 3px var(--focus-ring)}@media(prefers-reduced-motion:reduce){.word-card-inner{transition:none}}.lesson-practice-form-title{margin:0}.lesson-practice-state h2,.lesson-practice-state p,.lesson-practice-exercise-row p{margin-bottom:0}.lesson-practice-exercises{display:grid;gap:32px}.lesson-practice-exercise-row{display:grid;gap:16px;padding:0}.lesson-practice-exercise-row h2{margin:0;font-size:clamp(1.25rem,3vw,1.65rem);line-height:1.35}.lesson-practice-answer-tray{display:flex;min-height:80px;flex-wrap:wrap;align-content:flex-start;gap:10px;padding:12px 4px;border-block:1px solid var(--color-border)}.lesson-practice-answer-placeholder{align-self:center;color:var(--color-text-soft)}.lesson-practice-tile-bank{display:flex;min-height:52px;flex-wrap:wrap;justify-content:center;gap:10px}.lesson-practice-tile{min-height:48px;padding:9px 16px;border:1px solid var(--color-border-soft);border-radius:14px;background:var(--color-surface);box-shadow:0 3px 0 var(--color-border-soft);color:var(--color-text);font:inherit;font-weight:700;cursor:pointer;transition:border-color .15s ease,background-color .15s ease,box-shadow .15s ease,color .15s ease,opacity .15s ease,transform .15s ease}.lesson-practice-tile:hover:not(:disabled){border-color:color-mix(in srgb,var(--today-blue) 34%,var(--color-border));background:var(--today-blue-soft);box-shadow:0 4px color-mix(in srgb,var(--today-blue) 22%,var(--color-border-soft));color:var(--today-blue-deep);transform:translateY(-1px)}.lesson-practice-tile:focus-visible{outline:3px solid color-mix(in srgb,var(--today-blue) 28%,transparent);outline-offset:3px}.lesson-practice-tile.is-selected{border-color:color-mix(in srgb,var(--today-blue) 42%,var(--color-border));background:var(--today-blue-soft);box-shadow:0 3px color-mix(in srgb,var(--today-blue) 24%,var(--color-border-soft));color:var(--today-blue-deep)}.lesson-practice-tile.is-reorderable{cursor:grab}.lesson-practice-tile.is-reorderable:active{cursor:grabbing}.lesson-practice-tile.is-dragging{opacity:.48;transform:scale(.97)}.lesson-practice-tile.is-drop-target{border-color:var(--today-blue);box-shadow:0 0 0 3px color-mix(in srgb,var(--today-blue) 22%,transparent);transform:translateY(-2px)}.lesson-practice-tile.is-selected.is-answer-correct{border-color:var(--color-success);background:#1373331f;box-shadow:0 3px color-mix(in srgb,var(--color-success) 24%,var(--color-border-soft));color:var(--color-success);animation:lesson-practice-correct-tile .42s ease-out both}.lesson-practice-tile.is-selected.is-answer-incorrect{border-color:#df6b35;background:#df6b351f;box-shadow:0 3px color-mix(in srgb,#df6b35 26%,var(--color-border-soft));color:#c94f24;animation:lesson-practice-incorrect-tile .36s ease-out both}.lesson-practice-tile:disabled:not(.is-selected){opacity:.25;cursor:default}.lesson-practice-feedback{display:grid;gap:4px;margin-top:-8px}.lesson-practice-feedback p{margin:0}.lesson-practice-correction{color:var(--color-error);line-height:1.45}.lesson-practice-correction span{font-weight:700}.lesson-practice-translation{color:var(--color-text-soft);font-size:.92rem;line-height:1.45}@keyframes lesson-practice-correct-tile{0%{transform:translateY(0) scale(1)}45%{transform:translateY(-5px) scale(1.04)}to{transform:translateY(0) scale(1)}}@keyframes lesson-practice-incorrect-tile{0%,to{transform:translate(0)}30%{transform:translate(-5px)}60%{transform:translate(5px)}}@media(prefers-reduced-motion:reduce){.lesson-practice-tile.is-selected.is-answer-correct,.lesson-practice-tile.is-selected.is-answer-incorrect{animation:none}}.lesson-practice-queue-wait{padding:32px 0;color:var(--color-text-soft);text-align:center}.lesson-practice-input{width:100%;min-height:82px;padding:12px;border:1px solid var(--color-border);border-radius:12px;background:var(--color-surface);color:var(--color-text);font:inherit;line-height:1.4;resize:vertical}.lesson-practice-input:focus{border-color:var(--color-accent);box-shadow:0 0 0 3px var(--focus-ring)}.lesson-practice-chip-list{display:flex;flex-wrap:wrap;gap:8px}.lesson-practice-chip{min-height:36px;padding:0 12px;border:1px solid var(--color-border);border-radius:999px;background:var(--color-surface);color:var(--color-text-soft);cursor:pointer;transition:border-color .16s ease,background-color .16s ease,color .16s ease,transform .16s ease}.lesson-practice-chip:hover{border-color:var(--color-hover-border);background:var(--color-hover-bg);color:var(--color-text);transform:translateY(-1px)}.lesson-practice-chip.is-selected{border-color:var(--color-accent);background:var(--color-accent);color:var(--color-primary-fg)}.lesson-practice-chip:disabled{cursor:default;transform:none}.lesson-practice-chip.is-correct{border-color:var(--color-success);background:#1373331f;color:var(--color-success)}.lesson-practice-chip.is-incorrect{border-color:var(--color-error);background:var(--color-error-bg);color:var(--color-error)}.lesson-practice-submit-row{display:flex;align-items:center;justify-content:space-between;gap:10px;margin-top:8px}.lesson-practice-action-button{min-width:132px;min-height:52px;padding:0 24px;border:0;border-radius:16px;background:var(--today-blue-hero);box-shadow:0 5px color-mix(in srgb,var(--today-blue-hero-deep) 78%,#16356f);color:#fff;font-size:.96rem;font-weight:760}.lesson-practice-action-button:hover:not(:disabled){background:var(--today-blue-hero);box-shadow:0 3px color-mix(in srgb,var(--today-blue-hero-deep) 78%,#16356f);transform:translateY(2px)}.lesson-practice-action-button:active:not(:disabled){box-shadow:0 1px color-mix(in srgb,var(--today-blue-hero-deep) 78%,#16356f);transform:translateY(4px)}.lesson-practice-action-button:focus-visible{outline:3px solid color-mix(in srgb,var(--today-blue) 30%,transparent);outline-offset:3px}.lesson-practice-action-button:disabled{box-shadow:0 3px color-mix(in srgb,var(--today-blue-hero-deep) 62%,#16356f)}.lesson-launch-card h2,.lesson-focus-section h2,.lesson-report-section h2{margin-bottom:4px}.lesson-focus-section,.lesson-report-section{display:grid;gap:10px}.word-add-button{display:inline-grid;width:42px;height:42px;place-items:center;padding:0;border:1px solid var(--color-border);border-radius:999px;background:var(--color-surface);color:var(--color-muted);cursor:pointer;transition:border-color .16s ease,background-color .16s ease,color .16s ease,transform .16s ease}.word-add-button:hover{border-color:var(--color-accent);background:var(--color-hover-bg);color:var(--color-accent);transform:translateY(-1px)}.word-add-button:focus-visible{outline:none;border-color:var(--color-accent);box-shadow:0 0 0 3px var(--focus-ring)}.learning-word-form{display:flex;flex-wrap:wrap;align-items:center;gap:8px}.learning-word-form input{min-width:min(100%,240px);min-height:44px;flex:1 1 180px;border:1px solid var(--color-border);border-radius:8px;outline:none;background:var(--color-surface);color:var(--color-text);padding:0 12px}.learning-word-form input:focus{border-color:var(--color-accent);box-shadow:0 0 0 3px var(--focus-ring)}.learning-word-message{flex-basis:100%;margin:0;color:var(--color-muted);font-size:.9rem}.lesson-report-section{padding-top:20px;border-top:1px solid var(--color-border-soft)}.sentence-list{display:grid;gap:8px;margin:0;padding-left:20px;color:var(--color-text-soft);line-height:1.5}.report-box{min-height:220px}.submit-row{justify-content:space-between;margin-top:12px}.status-message{min-height:24px;margin:0;color:var(--color-muted)}.status-error{color:var(--color-error)}.status-saved{color:var(--color-success)}.lesson-feedback-banner{display:grid;grid-template-columns:minmax(0,1fr) auto;align-items:start;gap:24px}.lesson-feedback-copy{min-width:0}.lesson-feedback-actions{display:flex;flex-wrap:wrap;align-items:center;gap:10px;margin-top:18px}.lesson-feedback-copy h2{margin-bottom:10px}.lesson-feedback-copy p{margin-bottom:0;color:var(--color-text-soft)}.lesson-feedback-copy .status-message{margin-top:10px;font-size:.88rem}.lesson-score-summary{display:grid;min-width:128px;align-self:start;justify-items:end;gap:0}.lesson-score-summary>span{color:var(--color-text);font-size:clamp(2.2rem,5vw,3.8rem);font-weight:560;letter-spacing:0;line-height:1;white-space:nowrap}.level-progress{display:grid;gap:8px;margin:0}.level-progress-labels{display:flex;align-items:center;justify-content:space-between;font-size:.84rem;font-weight:560;color:var(--color-text)}.level-progress-track{width:100%;height:8px;border-radius:999px;background:var(--color-border-soft);overflow:hidden}.level-progress-fill{height:100%;border-radius:999px;background:var(--color-accent);transition:width .22s ease}.level-progress-caption{margin:0;color:var(--color-muted);font-size:.82rem}.word-metrics{grid-template-columns:repeat(3,minmax(0,1fr));margin:0}.word-metrics .metric-item{min-height:64px;padding:10px}.app-footer{position:fixed;z-index:20;right:0;bottom:0;left:0;margin:0;padding-bottom:env(safe-area-inset-bottom);background:var(--color-app-bg);-webkit-backdrop-filter:none;backdrop-filter:none;overflow-anchor:none}.app-footer-inner{display:flex;width:min(1180px,calc(100% - 32px));min-height:var(--app-footer-height);align-items:center;justify-content:space-between;gap:18px;margin:0 auto;padding:14px 0}.primary-navigation{position:fixed;z-index:30;left:50%;bottom:calc(var(--app-footer-height) + 16px + env(safe-area-inset-bottom));display:grid;width:min(360px,calc(100% - 32px));min-height:64px;grid-template-columns:repeat(3,minmax(0,1fr));gap:4px;padding:6px;border:1px solid rgba(218,220,224,.72);border-radius:999px;background:var(--color-floating-nav);box-shadow:var(--shadow-floating-nav);-webkit-backdrop-filter:blur(22px) saturate(1.25);backdrop-filter:blur(22px) saturate(1.25);transform:translate(-50%)}:root[data-theme=dark] .primary-navigation{border-color:#555c6694}.primary-navigation-item{display:flex;min-width:0;min-height:50px;align-items:center;justify-content:center;gap:7px;padding:0 11px;border-radius:999px;background:transparent;color:var(--color-muted);cursor:pointer;font-size:.8rem;font-weight:620;transition:background-color .16s ease,color .16s ease,transform .16s ease}.primary-navigation-item:hover{color:var(--color-text);transform:translateY(-1px)}.primary-navigation-item.is-active{background:var(--color-primary-bg);color:var(--color-primary-fg)}.primary-navigation-item:focus-visible{outline:2px solid var(--color-accent);outline-offset:2px}.primary-navigation-item .material-symbol{flex:0 0 auto;font-size:1.3rem}.footer-copy{display:flex;min-width:0;flex-wrap:wrap;align-items:center;gap:4px 8px;color:var(--color-muted);font-size:.84rem;line-height:1.35}.theme-switcher{position:relative;flex:0 0 auto}.theme-trigger{display:inline-flex;width:28px;height:28px;align-items:center;justify-content:center;padding:0;background:transparent;color:var(--color-muted);cursor:pointer;transition:color .16s ease,transform .16s ease}.theme-trigger:hover{color:var(--color-text);transform:translateY(-1px)}.theme-trigger:focus-visible{border-radius:6px;outline:2px solid var(--focus-ring);outline-offset:3px}.theme-trigger .material-symbol{font-size:1.35rem}.theme-trigger-icon{font-family:Material Symbols Outlined;font-weight:400;font-variation-settings:"FILL" 0,"wght" 400,"GRAD" 0,"opsz" 24}.theme-menu{position:absolute;right:0;bottom:calc(100% + 10px);display:grid;width:176px;gap:2px;padding:6px;border:1px solid var(--color-border);border-radius:8px;background:var(--color-surface);box-shadow:var(--shadow-menu)}.theme-menu-item{display:grid;width:100%;min-height:38px;grid-template-columns:minmax(0,1fr) 20px;align-items:center;gap:8px;padding:0 8px;border-radius:6px;background:transparent;color:var(--color-muted);cursor:pointer;text-align:left}.theme-menu-item:hover,.theme-menu-item.is-active{background:var(--color-hover-bg);color:var(--color-text)}.theme-menu-check,.theme-menu-check-placeholder{justify-self:end}.theme-menu-check{color:var(--color-accent);font-size:1rem}@media(max-width:900px){:root{--app-footer-height: 58px}h1{font-size:2rem}.course-card-actions,.lesson-launch-card,.submit-row,.lesson-feedback-banner{align-items:stretch;flex-direction:column}.course-card-action-buttons{width:100%;align-items:stretch;flex-direction:column}.lesson-feedback-banner{display:flex}.lesson-feedback-actions{width:100%;align-items:stretch;flex-direction:column}.lesson-score-summary{justify-items:start}.minimal-header{display:grid;grid-template-columns:minmax(0,1fr) auto;width:calc(100% - 24px);min-height:66px;align-items:center;gap:10px;padding:10px 0}.header-brand-group{grid-column:1;min-width:0}.header-actions{grid-column:2;width:auto;justify-self:end;justify-content:flex-end;align-items:center;flex-direction:row;gap:12px}.course-switcher{width:auto;max-width:min(28vw,220px);justify-content:flex-start}.action-row,.submit-row,.lesson-feedback-banner,.course-card-actions,.lesson-launch-card,.lesson-feedback-actions{width:100%}.action-row,.submit-row,.lesson-feedback-banner,.course-card-actions,.lesson-launch-card,.lesson-feedback-actions,.lesson-practice-submit-row{align-items:stretch;flex-direction:column}.lesson-feedback-actions{align-items:stretch}.action-row .handoff-copy-button,.lesson-feedback-actions .handoff-copy-button{width:40px;min-width:40px}.brand-mark,.header-actions{justify-self:stretch}.brand-mark img{width:108px}.streak-badge,.word-progress-badge,.speaking-practice-badge,.level-progress-badge{align-self:center;min-width:54px;gap:6px;padding:0 9px}.streak-badge-icon,.word-progress-badge-icon,.speaking-practice-badge-icon,.level-progress-badge-icon{width:21px;height:21px}.speaking-practice-badge strong{display:none}.word-learning-home{padding-top:24px}.word-learning-course-card{padding:22px}.word-learning-course-flag{width:54px;height:54px}.level-progress-dropdown{position:fixed;top:70px;right:12px}.user-cluster{min-width:0;justify-content:flex-end}.action-row .button,.submit-row .button,.lesson-feedback-actions .button,.lesson-practice-submit-row .button,.course-card-actions .button{width:100%}.course-metrics,.two-columns,.skill-grid,.course-inline-settings,.course-skill-grid{grid-template-columns:1fr}.inline-course-text-trigger,.inline-course-text-editor{grid-column:1}.word-metrics{grid-template-columns:repeat(3,minmax(0,1fr))}.empty-course-state,.course-create-state,.course-home{min-height:auto;padding-top:80px}.lesson-page-content{min-height:0}.ambient-gradient{width:132vw;height:min(560px,66vh)}.app-footer-inner{display:grid;grid-template-columns:minmax(0,1fr) auto;width:calc(100% - 24px);min-height:var(--app-footer-height);align-items:center;gap:10px}.primary-navigation{bottom:calc(var(--app-footer-height) + 12px + env(safe-area-inset-bottom));width:min(330px,calc(100% - 24px));min-height:60px}.primary-navigation-item{min-height:46px;padding:0 8px}.footer-copy{justify-content:flex-start;text-align:left;font-size:.78rem}.theme-switcher{align-self:center;justify-self:end}.theme-menu{right:0;transform:none}}@media(max-width:380px){.minimal-header{gap:6px}.brand-mark img{width:88px}.header-actions{gap:9px}.streak-badge,.level-progress-badge{min-width:42px;padding:0 6px}.header-create-course-button{width:var(--header-control-size);min-width:var(--header-control-size)}.course-switcher{max-width:72px}.primary-navigation-item{gap:5px;font-size:.74rem}}.course-home{display:block;padding:28px 24px 72px}.course-list{width:min(1040px,100%);margin:0 auto}.course-workspace{display:grid;width:100%;min-width:0}.course-loading-workspace{display:grid;width:min(1040px,100%);gap:28px;margin:0 auto;padding:26px 0}.course-tabs{display:flex;min-width:0;gap:28px;overflow-x:auto;border-bottom:1px solid var(--color-border-soft);scrollbar-width:none}.course-tabs::-webkit-scrollbar{display:none}.course-tab{position:relative;display:inline-flex;min-height:58px;flex:0 0 auto;align-items:center;gap:8px;padding:0 2px;background:transparent;color:var(--color-muted);cursor:pointer;font-size:.9rem;font-weight:600}.course-tab:after{position:absolute;right:0;bottom:-1px;left:0;height:2px;background:transparent;content:""}.course-tab:hover,.course-tab.is-active{color:var(--color-text)}.course-tab.is-active:after{background:var(--color-text)}.course-tab:focus-visible{border-radius:4px;outline:2px solid var(--color-accent);outline-offset:-3px}.course-tab .material-symbol{font-size:1.2rem}.course-tab-panel{min-width:0;padding:38px 0 18px}.course-tab-panel[hidden]{display:none}.course-panel-empty-state{display:flex;min-height:220px;align-items:center;justify-content:center;gap:10px;color:var(--color-muted)}.course-panel-empty-state p{margin:0}.course-panel-empty-state .material-symbol{font-size:1.35rem}.course-today-panel .lesson-shell-embedded .lesson-home{justify-items:stretch}.course-today-panel{padding-top:28px}.course-today-panel .lesson-shell-embedded .lesson-page-content{width:100%;max-width:none;gap:0}.course-today-panel .lesson-shell-embedded .lesson-launch-card,.course-today-panel .lesson-shell-embedded .lesson-details{border-radius:0;background:transparent;box-shadow:none}.course-today-panel .lesson-shell-embedded .lesson-launch-card{padding:0 0 34px}.course-today-panel .lesson-shell-embedded .lesson-details{padding:0}.course-today-panel .lesson-focus-section,.course-today-panel .lesson-report-section{padding-top:0;border-top:0}.course-overview{display:grid;gap:16px}.course-settings-card{position:relative;display:grid;gap:20px;overflow:visible;padding:22px;border:1px solid var(--color-border-soft);border-radius:24px;background:var(--color-surface);box-shadow:0 3px 0 var(--color-border-soft)}.course-settings-header{display:flex;align-items:center;justify-content:space-between;gap:18px}.course-settings-heading{display:flex;min-width:0;align-items:center;gap:12px}.course-settings-heading>div{display:grid;min-width:0;gap:3px}.course-settings-heading h2{margin:0;color:var(--color-text);font-size:1.12rem;font-weight:720}.course-settings-heading>div>span{overflow:hidden;color:var(--color-muted);font-size:.76rem;text-overflow:ellipsis;white-space:nowrap}.course-settings-illustration{display:block;width:48px;height:48px;flex:0 0 auto;color:var(--today-blue);overflow:visible}.course-settings-header .course-language-route{flex:0 0 auto}.course-settings-header .course-language-flag{width:36px;height:36px}.course-overview .course-inline-settings{grid-template-columns:repeat(2,minmax(0,1fr));gap:10px}.course-overview .course-settings-control,.course-form-control{min-height:64px;padding:10px 12px;border:1px solid var(--color-border-soft);border-radius:14px;background:var(--color-surface);box-shadow:none}.course-overview .inline-course-setting-trigger.course-settings-control:hover{border-color:var(--color-hover-border);background:var(--color-hover-bg)}.course-overview .inline-course-setting-trigger.course-settings-control[aria-expanded=true],.course-overview .inline-course-setting-trigger.course-settings-control:focus-visible,.course-overview .inline-course-text-editor.course-settings-control:focus-within{border-color:var(--color-accent);background:var(--color-surface);box-shadow:0 0 0 3px var(--focus-ring)}.course-overview .inline-course-text-trigger,.course-overview .inline-course-text-editor{grid-column:1 / -1}.course-settings-danger-zone{display:flex;min-height:72px;align-items:center;justify-content:space-between;gap:20px;padding:14px 16px;border:1px solid var(--color-border-soft);border-radius:20px;background:var(--color-surface)}.course-danger-heading{display:flex;align-items:center;gap:10px}.course-danger-illustration{display:block;width:44px;height:44px;flex:0 0 auto;color:var(--color-error);overflow:visible}.course-danger-heading h2{margin:0;color:var(--color-text);font-size:.92rem;font-weight:680}.course-delete-button{min-height:42px;flex:0 0 auto;padding:0 18px;border:1px solid color-mix(in srgb,var(--color-error) 28%,var(--color-border-soft));border-radius:12px;background:var(--color-error-bg);color:var(--color-error);cursor:pointer;font-weight:600}.course-delete-button:hover{border-color:color-mix(in srgb,var(--color-error) 44%,var(--color-border));background:color-mix(in srgb,var(--color-error-bg) 78%,var(--color-surface))}.course-delete-button:focus-visible{outline:3px solid color-mix(in srgb,var(--color-error) 22%,transparent);outline-offset:2px}.word-learning-embedded .word-learning-home{display:block;padding:0}.word-learning-embedded .word-learning-course-list{display:grid;width:100%;grid-template-columns:1fr;gap:0;border-top:1px solid var(--color-border-soft)}.word-learning-embedded .word-learning-course-card{display:grid;width:100%;min-height:108px;aspect-ratio:auto;align-items:center;align-content:center;justify-items:stretch;gap:18px;padding:22px 0;border:0;border-bottom:1px solid var(--color-border-soft);border-radius:0;background:transparent;box-shadow:none}.word-learning-embedded .word-learning-course-card{grid-template-columns:54px minmax(120px,1fr) minmax(190px,.7fr) 112px}.word-learning-embedded .word-learning-course-card>strong{margin:0;text-align:left}.word-learning-embedded .word-learning-course-card>.button{width:112px}@media(max-width:700px){.course-home{padding:16px 16px 48px}.course-tabs{gap:22px}.course-tab{min-height:52px}.course-tab-panel{padding-top:30px}.course-settings-card{padding:18px}.course-overview .course-inline-settings{grid-template-columns:1fr}.course-overview .inline-course-text-trigger,.course-overview .inline-course-text-editor{grid-column:1}.course-settings-danger-zone{align-items:flex-start;flex-direction:column}.course-settings-danger-zone .course-delete-button{width:100%}.word-learning-embedded .word-learning-course-card{grid-template-columns:54px minmax(0,1fr) 104px;gap:12px}.word-learning-embedded .word-level-picker{grid-column:2 / -1;grid-row:2}.word-learning-embedded .word-learning-course-card>.button{width:104px}.word-learning-method{grid-template-columns:44px minmax(0,1fr) 44px;column-gap:12px;row-gap:14px;padding:16px}.word-learning-method-illustration{grid-row:1;width:44px;height:44px}.word-learning-method-toggle{display:inline-grid;grid-column:3;grid-template-columns:32px;width:44px;height:44px;padding:6px}.word-learning-method-toggle-label{display:none}.word-learning-method-chevron{grid-column:1}.word-learning-method-details{grid-column:1 / -1;padding-top:2px}.word-learning-level-grid{grid-template-columns:repeat(2,minmax(0,1fr))}.word-learning-level-card{min-height:260px;padding:16px}.vocabulary-trainer-card.word-card-single,.vocabulary-trainer-card .word-card-inner,.vocabulary-trainer-card .word-card-face{min-height:320px}.vocabulary-trainer-card-copy{padding:32px 24px}.vocabulary-trainer-reveal-count{bottom:22px}}@media(max-width:430px){.word-learning-level-grid{grid-template-columns:1fr}}.course-home{padding-top:4px}.course-list{width:min(1180px,100%)}.course-tabs{gap:28px;padding:0;border:0;border-bottom:1px solid var(--color-border-soft);border-radius:0;background:transparent}.course-tab{min-height:54px;gap:7px;padding:0 3px;border-radius:0;font-size:.86rem;transition:color .16s ease,transform .16s ease}.course-tab:after{display:block;right:3px;left:3px;height:3px;border-radius:999px 999px 0 0;background:var(--today-blue);opacity:0;transform:scaleX(.35);transition:opacity .16s ease,transform .22s cubic-bezier(.2,1.2,.34,1)}.course-tab:hover{background:transparent;color:var(--today-blue);transform:translateY(-1px)}.course-tab:hover .material-symbol{transform:rotate(-6deg) scale(1.08)}.course-tab.is-active{background:transparent;color:var(--today-blue)}.course-tab.is-active:after{opacity:1;transform:scaleX(1)}.course-tab .material-symbol{transition:transform .18s cubic-bezier(.2,1.2,.34,1)}.course-tab-stats{display:inline-flex}.course-today-panel{padding-top:24px}.course-workspace-layout{display:grid;min-width:0;grid-template-columns:minmax(0,1fr) 380px;align-items:start;gap:28px}.course-workspace-main{min-width:0}.course-workspace-main>.course-tab-panel{padding-top:24px}.learning-stats{display:grid;gap:16px}.learning-stats-header{display:flex;align-items:end;justify-content:space-between;gap:20px;padding:4px 2px 8px}.learning-stats-header>div:first-child{display:grid;max-width:600px;gap:4px}.learning-stats-header h2,.learning-stats-header p,.learning-stats-card-heading h3,.learning-stats-card-heading p{margin:0}.learning-stats-header h2{color:var(--color-text);font-size:clamp(1.55rem,3vw,1.95rem);font-weight:710;letter-spacing:-.035em;line-height:1.1}.learning-stats-header p{color:var(--color-muted);font-size:.76rem;line-height:1.45}.learning-stats-meta{display:grid;flex:0 0 auto;justify-items:end;gap:2px;color:var(--color-muted);font-size:.66rem;line-height:1.35}.learning-stats-meta strong{color:var(--color-text-soft);font-size:.7rem;font-weight:680}.learning-stats-card{display:grid;gap:16px;padding:20px;border:1px solid var(--color-border-soft);border-radius:20px;background:var(--color-surface)}.learning-overview-card{grid-template-columns:minmax(260px,1.3fr) minmax(250px,1fr);align-items:center;gap:28px}.learning-overall-level{display:grid;gap:10px}.learning-overall-level>span,.learning-overview-metrics dt{color:var(--color-muted);font-size:.64rem;font-weight:690;letter-spacing:.04em;text-transform:uppercase}.learning-overall-level>div:nth-child(2){display:flex;align-items:baseline;gap:10px}.learning-overall-level strong{color:var(--color-text);font-size:2.1rem;font-weight:740;letter-spacing:-.04em;line-height:1}.learning-overall-level small,.learning-overview-metrics small{color:var(--color-muted);font-size:.66rem;line-height:1.35}.learning-overall-track{height:9px;overflow:hidden;border-radius:999px;background:var(--color-border-soft)}.learning-overall-track>span{display:block;height:100%;border-radius:inherit;background:var(--today-blue)}.learning-overview-metrics{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));margin:0;border-left:1px solid var(--color-border-soft)}.learning-overview-metrics>div{display:grid;gap:4px;padding-left:22px}.learning-overview-metrics>div+div{border-left:1px solid var(--color-border-soft)}.learning-overview-metrics dd{display:grid;gap:4px;margin:0}.learning-overview-metrics dd strong{color:var(--color-text);font-size:1.55rem;font-weight:730;letter-spacing:-.035em;line-height:1}.learning-stats-card-heading{display:flex;align-items:flex-start;justify-content:space-between;gap:18px}.learning-stats-card-heading h3{color:var(--color-text);font-size:1.08rem;font-weight:710;letter-spacing:-.025em}.learning-stats-card-heading>p,.learning-stats-card-heading>small{max-width:300px;color:var(--color-muted);font-size:.68rem;line-height:1.45;text-align:right}.learning-skill-list{display:grid;border-top:1px solid var(--color-border-soft)}.learning-skill-row{display:grid;grid-template-columns:minmax(130px,.6fr) minmax(180px,1fr) 38px;align-items:center;gap:20px;padding:13px 0;border-bottom:1px solid var(--color-border-soft)}.learning-skill-name{display:grid;min-width:0;gap:2px}.learning-skill-name strong{color:var(--color-text);font-size:.76rem;font-weight:710}.learning-skill-name small{color:var(--color-muted);font-size:.62rem;line-height:1.3}.learning-skill-row.is-strongest .learning-skill-name small{color:var(--today-mint)}.learning-skill-row.is-focus .learning-skill-name small{color:var(--today-coral)}.learning-skill-track{display:grid;grid-template-columns:repeat(7,minmax(8px,1fr));gap:4px}.learning-skill-track span{display:block;height:8px;border-radius:999px;background:var(--color-border-soft)}.learning-skill-track span.is-complete{background:color-mix(in srgb,var(--today-blue) 62%,var(--today-blue-soft))}.learning-skill-track span.is-current{background:var(--today-blue)}.learning-skill-value{color:var(--color-text);font-size:.76rem;font-weight:720;text-align:right}.learning-stats-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:16px}.learning-score-chart{display:flex;min-height:170px;align-items:end;justify-content:space-around;gap:8px;padding-top:8px}.learning-score-column{display:grid;min-width:30px;flex:1;justify-items:center;gap:6px}.learning-score-column>strong,.learning-score-column>small{color:var(--color-muted);font-size:.6rem;font-weight:680}.learning-score-column>div{display:flex;width:min(30px,80%);height:112px;align-items:end;overflow:hidden;border-radius:9px 9px 5px 5px;background:var(--color-border-soft)}.learning-score-column>div>span{display:block;width:100%;border-radius:inherit;background:var(--today-blue)}.learning-course-plan dl{display:grid;gap:14px;margin:0}.learning-course-plan dl>div{display:grid;gap:3px;padding-bottom:13px;border-bottom:1px solid var(--color-border-soft)}.learning-course-plan dl>div:last-child{padding-bottom:0;border-bottom:0}.learning-course-plan dt{color:var(--color-muted);font-size:.64rem;font-weight:720;letter-spacing:.05em;text-transform:uppercase}.learning-course-plan dd{margin:0;color:var(--color-text);font-size:.76rem;font-weight:620;line-height:1.45}.learning-guidance-notes{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:24px;margin:0;border-top:1px solid var(--color-border-soft);border-bottom:1px solid var(--color-border-soft)}.learning-guidance-notes>div{display:grid;gap:4px;padding:14px 0}.learning-report-summary{max-width:760px;margin:0;color:var(--color-text-soft);font-size:.76rem;line-height:1.55}.learning-guidance-notes dt,.learning-review-targets>strong{color:var(--color-text);font-size:.7rem;font-weight:720}.learning-guidance-notes dd{margin:0;color:var(--color-muted);font-size:.7rem;line-height:1.5}.learning-review-targets{display:grid;gap:8px}.learning-review-targets>div{display:flex;flex-wrap:wrap;gap:7px}.learning-review-targets span{padding:7px 10px;border:1px solid var(--color-border-soft);border-radius:999px;background:var(--color-app-bg);color:var(--color-text-soft);font-size:.66rem;font-weight:650}.learning-critical-mistakes{border-top:1px solid var(--color-border-soft);padding-top:14px}.learning-critical-mistakes summary{color:var(--color-text-soft);cursor:pointer;font-size:.7rem;font-weight:690}.learning-critical-mistakes ul{display:grid;gap:7px;margin:12px 0 0;padding-left:18px;color:var(--color-muted);font-size:.68rem;line-height:1.45}.learning-stats-empty{margin:0;padding:20px 0;color:var(--color-muted);font-size:.74rem;line-height:1.5;text-align:center}.course-today-panel .lesson-shell-embedded .lesson-page-content{gap:18px}.lesson-journey-card{position:relative;display:grid;min-height:360px;align-content:end;overflow:hidden;padding:clamp(28px,5vw,46px);border-radius:28px;background:radial-gradient(circle at 92% 16%,rgba(255,255,255,.16) 0 108px,transparent 110px),radial-gradient(circle at 81% 46%,rgba(255,255,255,.08) 0 190px,transparent 192px),linear-gradient(145deg,var(--today-blue-hero) 0%,var(--today-blue-hero-deep) 100%);box-shadow:0 7px color-mix(in srgb,var(--today-blue-hero-deep) 72%,#16356f);color:#fff}.lesson-language-corner{position:absolute;z-index:2;top:38px;right:42px;width:76px;height:54px}.lesson-language-flag{display:grid;width:76px;height:54px;place-items:center;overflow:hidden;border-radius:16px;box-shadow:0 5px #1436764d;color:#fff;transform:rotate(3deg)}.lesson-language-flag img{display:block;width:100%;height:100%;border-radius:inherit;object-fit:cover}.lesson-language-flag .material-symbol{font-size:1.8rem}.lesson-journey-content{position:relative;z-index:1;display:grid;width:min(650px,calc(100% - 118px));max-width:100%;justify-items:start}.lesson-card-kicker{display:inline-flex;align-items:center;gap:6px;margin-bottom:12px;color:inherit;font-size:.76rem;font-weight:760;letter-spacing:.09em;text-transform:uppercase}.lesson-journey-card h2{max-width:650px;margin:0;color:#fff;font-size:clamp(2rem,4.8vw,3.2rem);font-weight:690;letter-spacing:-.045em;line-height:1.02;overflow-wrap:anywhere}.lesson-journey-card .lesson-title-prefix{display:block;margin-bottom:6px;color:#ffffffb3;font-size:.48em;font-weight:650;letter-spacing:.02em}.lesson-journey-meta{display:flex;flex-wrap:wrap;align-items:center;gap:8px;margin:20px 0 26px}.lesson-journey-meta>span{display:inline-flex;min-height:31px;align-items:center;gap:4px;padding:0 11px;border:1px solid rgba(255,255,255,.2);border-radius:999px;background:#ffffff21;color:#fff;font-size:.8rem;font-weight:650}.lesson-journey-meta .material-symbol{font-size:1rem}.lesson-start-button{min-height:52px;padding:0 24px;border-radius:16px;background:#fff;box-shadow:0 5px #1436767a;color:#2450a8;font-size:.96rem;font-weight:760}.lesson-start-button:hover{background:#fff;box-shadow:0 3px #1436767a;transform:translateY(2px)}.lesson-start-button:focus-visible{outline:3px solid rgba(255,255,255,.55);outline-offset:3px}.secondary-action-card{display:grid;align-items:center;gap:20px;padding:22px;border:1px solid var(--color-border-soft);border-radius:24px;background:var(--color-surface);box-shadow:0 3px 0 var(--color-border-soft)}.lesson-chat-path{grid-template-columns:minmax(0,1fr) auto}.lesson-chat-path-header{display:grid;min-width:0;grid-template-columns:48px minmax(0,1fr);align-items:center;gap:14px}.lesson-chat-illustration,.practice-words-illustration{display:block;width:48px;height:48px;flex:0 0 auto;color:var(--today-blue);overflow:visible}.lesson-chat-copy{min-width:0}.lesson-chat-copy .lesson-card-kicker,.practice-words-copy .practice-card-kicker{margin-bottom:3px;color:var(--today-blue);font-size:.67rem}.lesson-chat-copy h2,.practice-words-copy h2{margin:0;color:var(--color-text);font-size:1.05rem;font-weight:700;letter-spacing:-.015em}.lesson-chat-actions{display:flex;align-items:center;justify-content:flex-end;gap:8px}.lesson-chat-actions .lesson-chat-button{min-height:44px;padding:0 16px;border-radius:14px;font-size:.84rem;font-weight:720}.lesson-chat-actions .handoff-copy-button{width:44px;height:44px;min-width:44px;padding:0;border-radius:14px}.secondary-action-button{min-height:44px;padding:0 16px;border:1px solid color-mix(in srgb,var(--today-blue) 36%,var(--color-border));border-radius:14px;background:var(--today-blue-soft);color:var(--today-blue-deep);font-size:.84rem;font-weight:720}:root[data-theme=dark] .secondary-action-button{color:var(--today-blue)}.secondary-action-button:hover{border-color:var(--today-blue);background:var(--today-blue-soft);color:var(--today-blue-deep)}.secondary-action-button:focus-visible{outline:3px solid color-mix(in srgb,var(--today-blue) 26%,transparent);outline-offset:2px}.lesson-chat-report{display:grid;grid-column:1 / -1;gap:12px;padding-top:18px;border-top:1px solid var(--color-border-soft)}.lesson-chat-report-heading{display:grid;gap:4px}.lesson-chat-report h3{margin:0;font-size:1rem;font-weight:720;letter-spacing:-.01em}.lesson-chat-report-heading p{margin:0;color:var(--color-muted);font-size:.82rem;line-height:1.5}.lesson-chat-report .report-box{min-height:120px;padding:14px 16px;border-color:var(--color-border-soft);border-radius:16px;background:color-mix(in srgb,var(--color-surface) 84%,var(--color-app-bg));font-size:.9rem;line-height:1.55}.lesson-chat-report .report-box::placeholder{color:color-mix(in srgb,var(--color-muted) 72%,transparent)}.lesson-chat-report .report-box:hover{border-color:var(--color-border)}.lesson-chat-submit-row{min-height:44px;align-items:center;margin-top:0}.lesson-chat-submit-row .status-message{margin:0;font-size:.78rem}.lesson-chat-submit-row .status-message:empty{min-height:0}.lesson-chat-submit-button{min-height:44px;padding:0 18px;border-radius:14px;font-size:.84rem;font-weight:720}.lesson-chat-submit-button:disabled{border:1px solid var(--color-border-soft);background:var(--color-app-bg);color:var(--color-muted);opacity:1}.lesson-feedback-banner{display:grid;grid-template-columns:minmax(0,1fr) auto;align-items:center;gap:24px;padding:clamp(26px,4vw,38px);border:1px solid color-mix(in srgb,var(--today-mint) 28%,var(--color-border));border-radius:28px;background:var(--color-surface);box-shadow:0 5px color-mix(in srgb,var(--today-mint) 26%,var(--color-border-soft))}.lesson-feedback-banner .lesson-card-kicker{color:var(--today-mint)}.lesson-feedback-banner h2{font-size:clamp(1.55rem,3vw,2.15rem);font-weight:700}.lesson-feedback-actions .button{min-height:44px;border-radius:14px;font-size:.84rem;font-weight:720}.lesson-feedback-actions .handoff-copy-button{width:44px;height:44px;min-width:44px;padding:0;border-radius:14px}.lesson-feedback-actions .button-secondary{min-height:44px;padding:0 16px;border-radius:14px;font-size:.84rem;font-weight:720}.lesson-feedback-actions .button-primary{min-height:44px;padding:0 18px;border-radius:14px;font-size:.84rem;font-weight:720}.course-practice-panel{padding-top:24px}.practice-hub{display:grid;gap:22px}.practice-speaking-hero{position:relative;display:grid;min-height:270px;align-items:center;overflow:hidden;padding:clamp(24px,4vw,34px);border-radius:28px;background:radial-gradient(circle at 91% 13%,rgba(255,255,255,.16) 0 92px,transparent 94px),radial-gradient(circle at 80% 62%,rgba(255,255,255,.09) 0 170px,transparent 172px),linear-gradient(140deg,#087f68,#116b70 52%,#27518a);box-shadow:0 7px color-mix(in srgb,#075f55 78%,#193362);color:#fff;isolation:isolate}.practice-speaking-content{position:relative;z-index:2;display:grid;width:min(500px,calc(100% - 180px));justify-items:start}.practice-card-kicker{display:inline-flex;align-items:center;margin-bottom:10px;color:inherit;font-size:.72rem;font-weight:760;letter-spacing:.09em;text-transform:uppercase}.practice-speaking-hero h2{max-width:470px;margin:0;color:#fff;font-size:clamp(1.85rem,4vw,2.65rem);font-weight:710;letter-spacing:-.05em;line-height:1}.practice-speaking-hero p{max-width:470px;margin:10px 0 0;color:#ffffffc7;font-size:.88rem;line-height:1.4}.practice-speaking-meta{display:flex;flex-wrap:wrap;gap:8px;margin:14px 0 18px}.practice-speaking-meta>span{display:inline-flex;min-height:30px;align-items:center;gap:5px;padding:0 10px;border:1px solid rgba(255,255,255,.2);border-radius:999px;background:#ffffff1f;color:#fff;font-size:.76rem;font-weight:650}.practice-speaking-meta .material-symbol{font-size:.96rem}.practice-primary-button{display:inline-flex;min-height:48px;align-items:center;justify-content:center;gap:8px;padding:0 22px;border-radius:16px;background:#fff;box-shadow:0 5px #043f3a75;color:#087f68;cursor:pointer;font-size:.92rem;font-weight:760;transition:box-shadow .16s ease,transform .16s ease}.practice-primary-button:hover{box-shadow:0 3px #043f3a75;transform:translateY(2px)}.practice-primary-button:focus-visible{outline:3px solid rgba(255,255,255,.58);outline-offset:3px}.practice-primary-button .material-symbol{font-size:1.14rem}.practice-speaking-visual{position:absolute;z-index:1;top:0;right:0;width:44%;height:100%;pointer-events:none}.practice-speaking-orbit{position:absolute;display:block;border:2px solid rgba(255,255,255,.16);border-radius:50%}.practice-speaking-orbit-large{top:20px;right:-22px;width:220px;height:220px}.practice-speaking-orbit-small{right:124px;bottom:22px;width:82px;height:82px;border-color:#ffffff1f}.practice-speaking-flag{position:absolute;z-index:2;top:30px;right:32px;display:block;width:58px;height:40px;overflow:hidden;border:3px solid rgba(255,255,255,.82);border-radius:14px;box-shadow:0 8px 20px #042f3f4d;transform:rotate(4deg)}.practice-speaking-flag img{display:block;width:100%;height:100%;object-fit:cover}.practice-words-banner{grid-template-columns:48px minmax(0,1fr) auto}.practice-words-copy{display:grid;min-width:0;gap:3px}.practice-words-copy p{max-width:510px;margin:0;color:var(--color-muted);font-size:.8rem;line-height:1.4}.practice-back-button:focus-visible{outline:3px solid color-mix(in srgb,var(--today-blue) 26%,transparent);outline-offset:2px}.practice-words-button .material-symbol{font-size:1rem}.practice-detail-view{display:grid;gap:22px}.practice-detail-header{display:grid;gap:20px}.practice-back-button{display:inline-flex;width:max-content;min-height:36px;align-items:center;gap:6px;padding:0 11px;border:1px solid var(--color-border-soft);border-radius:12px;background:var(--color-surface);color:var(--color-muted);cursor:pointer;font-size:.76rem;font-weight:650}.practice-back-button:hover{border-color:var(--color-hover-border);color:var(--color-text)}.practice-back-button .material-symbol{font-size:1rem}.practice-detail-header>div{display:grid;gap:4px}.practice-detail-header>div>span{color:var(--today-blue);font-size:.68rem;font-weight:740;letter-spacing:.08em;text-transform:uppercase}.practice-detail-header h2{margin:0;font-size:clamp(1.55rem,3vw,2rem);font-weight:700;letter-spacing:-.03em}.today-sidebar{position:sticky;top:18px;display:grid;align-items:start;gap:12px;margin-top:24px}.today-sidebar-card{display:grid;gap:16px;padding:20px;border:1px solid var(--color-border-soft);border-radius:20px;background:var(--color-surface)}.today-sidebar-card>h2{margin:0;font-size:1.02rem;font-weight:700}.today-words-heading{display:grid;gap:3px}.today-words-heading h2,.today-words-heading p{margin:0}.today-words-heading h2{font-size:1.02rem;font-weight:700}.today-words-heading p{color:var(--color-muted);font-size:.74rem;line-height:1.35}.today-rhythm-card{gap:14px;border-color:color-mix(in srgb,var(--today-coral) 18%,var(--color-border-soft));background:var(--color-surface)}.today-rhythm-heading{display:flex;align-items:center;gap:11px}.today-rhythm-heading>div{display:grid;min-width:0;gap:2px}.today-rhythm-heading>div>span{color:var(--today-coral);font-size:.66rem;font-weight:720;letter-spacing:.07em;text-transform:uppercase}.today-rhythm-heading h2{margin:0;font-size:1.02rem;font-weight:700}.today-rhythm-illustration{display:block;width:44px;height:44px;flex:0 0 auto;color:var(--today-coral);overflow:visible}.today-rhythm-summary{display:flex;align-items:baseline;gap:8px}.today-rhythm-summary strong{color:var(--color-text);font-size:1.8rem;font-weight:720;letter-spacing:-.04em;line-height:1}.today-rhythm-summary span{color:var(--color-muted);font-size:.76rem}.today-rhythm-days{display:grid;grid-template-columns:repeat(7,1fr);gap:6px}.today-rhythm-day{display:grid;justify-items:center;gap:5px}.today-rhythm-dot{display:block;width:100%;height:20px;border-radius:7px;background:var(--color-border-soft)}.today-rhythm-dot.activity-1{background:color-mix(in srgb,var(--today-coral) 42%,var(--today-coral-soft))}.today-rhythm-dot.activity-2{background:color-mix(in srgb,var(--today-coral) 72%,var(--today-coral-soft))}.today-rhythm-dot.activity-3{background:var(--today-coral)}.today-rhythm-day small{color:var(--color-muted);font-size:.62rem}.today-streak-line{display:flex;min-height:36px;align-items:center;gap:7px;padding:0 11px;border-radius:12px;background:var(--today-coral-soft);color:var(--today-coral)}.today-streak-line strong{font-size:.78rem}.today-streak-line .material-symbol{font-size:1.1rem}.today-add-word-form{display:grid;grid-template-columns:minmax(0,1fr) auto;gap:8px}.today-add-word-form input{min-width:0;min-height:40px;padding:0 12px;border:1px solid var(--color-border);border-radius:10px;outline:none;background:var(--color-surface);color:var(--color-text);font-size:.82rem}.today-add-word-form input:focus{border-color:var(--today-blue);box-shadow:0 0 0 3px color-mix(in srgb,var(--today-blue) 16%,transparent)}.today-add-word-form>button{min-height:36px;align-self:start;padding:0 13px;border-radius:10px;background:var(--today-blue);box-shadow:0 4px color-mix(in srgb,var(--today-blue-deep) 72%,#16356f);color:#fff;cursor:pointer;font-size:.8rem;font-weight:720;transition:background-color .16s ease,box-shadow .16s ease,opacity .16s ease,transform .16s ease}.today-add-word-form>button:hover:not(:disabled){background:var(--today-blue-deep);box-shadow:0 2px color-mix(in srgb,var(--today-blue-deep) 72%,#16356f);transform:translateY(2px)}.today-add-word-form>button:active:not(:disabled){box-shadow:0 1px color-mix(in srgb,var(--today-blue-deep) 72%,#16356f);transform:translateY(3px)}.today-add-word-form>button:focus-visible{outline:3px solid color-mix(in srgb,var(--today-blue) 28%,transparent);outline-offset:3px}.today-add-word-form>button:disabled{box-shadow:0 3px color-mix(in srgb,var(--today-blue-deep) 58%,#16356f);cursor:not-allowed;opacity:.45}.today-add-word-form p{grid-column:1 / -1;margin:0;font-size:.75rem;line-height:1.35}.today-add-word-form p.is-error{color:var(--color-error)}.today-add-word-form p.is-success{color:var(--color-success)}.today-word-cloud-shell{position:relative;min-width:0}.today-word-cloud{display:flex;min-width:0;align-items:center;flex-wrap:wrap;gap:6px}.today-word-chip{display:inline-flex;max-width:100%;min-height:32px;align-items:center;overflow:hidden;padding:0 10px;border:1px solid transparent;border-radius:10px;color:var(--color-text-soft);font-size:.78rem;font-weight:600;line-height:1.2;text-overflow:ellipsis;white-space:nowrap}.today-word-chip.is-learning-well{border-color:color-mix(in srgb,var(--today-mint) 20%,transparent);background:var(--today-mint-soft)}.today-word-chip.is-recent{border-color:var(--color-border-soft);background:var(--color-word-bg)}.today-word-overflow{position:relative;display:inline-flex}.today-word-overflow-badge{display:inline-flex;min-width:40px;min-height:32px;align-items:center;justify-content:center;padding:0 9px;border:1px dashed var(--color-border);border-radius:10px;background:var(--color-surface);color:var(--color-text-soft);cursor:help;font-size:.76rem;font-weight:720;line-height:1;white-space:nowrap}.today-word-overflow-badge:focus-visible{outline:3px solid color-mix(in srgb,var(--today-blue) 24%,transparent);outline-offset:2px}.today-word-overflow-tooltip{position:absolute;z-index:12;top:calc(100% + 8px);right:0;display:grid;width:min(300px,calc(100vw - 48px));gap:9px;padding:13px;border:1px solid var(--color-border);border-radius:14px;opacity:0;background:var(--color-surface);box-shadow:var(--shadow-menu);color:var(--color-text);pointer-events:none;transform:translateY(-4px);transition:opacity .14s ease,transform .14s ease,visibility .14s ease;visibility:hidden}.today-word-overflow:hover .today-word-overflow-tooltip,.today-word-overflow:focus-within .today-word-overflow-tooltip{opacity:1;pointer-events:auto;transform:translateY(0);visibility:visible}.today-word-overflow-tooltip>strong{font-size:.78rem}.today-word-overflow-list{display:grid;max-height:220px;gap:6px;overflow-y:auto;padding-right:3px}.today-word-overflow-list>span{padding-bottom:6px;border-bottom:1px solid var(--color-border-soft);color:var(--color-text-soft);font-size:.76rem;line-height:1.3}.today-word-overflow-list>span:last-child{padding-bottom:0;border-bottom:0}.today-word-cloud-measure{position:absolute;top:0;right:0;left:0;height:0;overflow:hidden;pointer-events:none;visibility:hidden}.today-progress-card{gap:22px}.today-progress-meter{display:grid;gap:7px}.today-progress-label{color:var(--color-text-soft);font-size:.8rem;font-weight:650}.today-progress-track{position:relative;display:grid;height:24px;place-items:center;overflow:hidden;border-radius:999px;background:var(--color-border-soft)}.today-progress-fill{position:absolute;top:0;bottom:0;left:0;display:block;border-radius:inherit;background:color-mix(in srgb,var(--today-blue) 72%,#ffffff);transition:width .5s cubic-bezier(.16,1,.3,1)}.today-progress-value{position:relative;z-index:1;color:#173e7a;font-size:.72rem;font-weight:750}.today-progress-description{color:var(--color-muted);font-size:.74rem;line-height:1.35}.today-progress-mint .today-progress-fill{background:color-mix(in srgb,var(--today-mint) 72%,#ffffff)}.today-progress-coral .today-progress-fill{background:color-mix(in srgb,var(--today-coral) 72%,#ffffff)}.today-progress-mint .today-progress-value{color:#125c4e}.today-progress-coral .today-progress-value{color:#713826}:root[data-theme=dark] .today-progress-fill{background:var(--today-blue-deep)}:root[data-theme=dark] .today-progress-mint .today-progress-fill{background:var(--today-mint)}:root[data-theme=dark] .today-progress-coral .today-progress-fill{background:var(--today-coral)}:root[data-theme=dark] .today-progress-value{color:var(--color-text)}@media(max-width:980px){.course-workspace-layout{grid-template-columns:1fr}.course-workspace-layout.is-stats-active .today-sidebar{display:grid}.today-sidebar{display:none;position:static;grid-template-columns:repeat(2,minmax(0,1fr));margin-top:0}.today-rhythm-card{grid-column:1 / -1}}@media(max-width:700px){.course-home{padding-top:0}.course-tabs{justify-content:space-between;gap:clamp(8px,3vw,16px);padding:0;border-radius:0}.course-tab{min-height:50px;gap:5px;padding:0 2px}.course-tab .material-symbol{font-size:1.05rem}.learning-stats{gap:14px}.learning-stats-header{display:grid;align-items:start;gap:10px;padding:2px 2px 6px}.learning-stats-meta{display:flex;justify-content:flex-start;gap:8px}.learning-overview-card{grid-template-columns:1fr;gap:20px}.learning-overview-metrics{padding-top:18px;border-top:1px solid var(--color-border-soft);border-left:0}.learning-overview-metrics>div{padding-left:0}.learning-overview-metrics>div+div{padding-left:18px}.learning-stats-card{padding:18px}.learning-stats-card-heading{display:grid;gap:8px}.learning-stats-card-heading>p,.learning-stats-card-heading>small{max-width:none;text-align:left}.learning-skill-row{grid-template-columns:minmax(92px,.7fr) minmax(88px,1fr) 32px;gap:10px}.learning-stats-grid,.learning-guidance-notes{grid-template-columns:1fr}.learning-guidance-notes{gap:0}.learning-guidance-notes>div+div{border-top:1px solid var(--color-border-soft)}.course-today-panel,.course-practice-panel{padding-top:18px}.practice-speaking-hero{min-height:320px;padding:24px 20px}.practice-speaking-content{width:min(500px,calc(100% - 120px))}.practice-speaking-visual{right:-44px;width:52%;opacity:.82}.practice-speaking-flag{right:36px}.practice-words-banner{grid-template-columns:48px minmax(0,1fr) auto;gap:14px;padding:20px}.practice-words-button{grid-column:2 / -1;justify-self:start}.lesson-journey-card{min-height:330px;padding:126px 22px 26px;border-radius:24px}.lesson-journey-content{width:100%}.lesson-language-corner{top:22px;right:22px;transform:scale(.82);transform-origin:top right}.lesson-journey-card h2{max-width:100%;font-size:clamp(1.8rem,10vw,2.45rem)}.lesson-chat-path{grid-template-columns:1fr;padding:18px}.lesson-chat-path-header{grid-template-columns:48px minmax(0,1fr)}.lesson-chat-actions{justify-content:stretch;margin-left:58px}.lesson-chat-actions .lesson-chat-button{flex:1}.lesson-feedback-banner{display:grid;grid-template-columns:1fr}.lesson-score-summary{justify-items:start}.today-sidebar{grid-template-columns:1fr}.today-words-card,.today-rhythm-card,.today-progress-card{grid-column:auto;grid-row:auto}}@media(max-width:470px){.course-settings-header{align-items:flex-start;flex-direction:column}.course-tab{flex:0 0 auto;padding:0 2px}.course-tabs{justify-content:space-between}.practice-speaking-hero{min-height:360px;align-items:end}.practice-speaking-content{width:100%}.practice-speaking-hero p{max-width:94%}.practice-speaking-visual{top:-74px;right:-70px;width:84%;height:82%;opacity:.5}.practice-speaking-flag{top:74px;right:54px}.practice-primary-button{width:100%}.practice-words-banner{grid-template-columns:48px minmax(0,1fr)}.secondary-action-card{padding:18px;border-radius:20px}.practice-words-button{grid-column:1 / -1;justify-self:stretch}.lesson-journey-meta{margin-bottom:22px}.lesson-start-button{width:100%}.lesson-chat-actions{align-items:stretch;margin-left:0}.lesson-chat-actions .lesson-chat-button{min-width:0}.lesson-chat-submit-row{align-items:stretch;flex-direction:column}.lesson-chat-submit-button{width:100%}}.course-empty-intro{position:relative;z-index:1;display:grid;width:112px;height:112px;place-items:center;border:1px solid rgba(255,255,255,.44);border-radius:36px;background:#fff3;box-shadow:0 24px 80px #563cc724;color:#ffffffc7;transform:rotate(-6deg)}.course-empty-intro .material-symbol{font-size:2.3rem}.course-create-backdrop{position:fixed;z-index:100;inset:0;display:grid;place-items:center;overflow:hidden;padding:24px;background:#1f232961;animation:course-backdrop-enter .16s ease-out both}.course-create-dialog{width:min(820px,100%);max-height:calc(100dvh - 48px);overflow:hidden;border:1px solid var(--color-border-soft);border-radius:24px;background:var(--color-surface);box-shadow:0 24px 64px #1f232933;animation:course-dialog-enter .18s ease-out both}.course-form{display:grid;max-height:calc(100dvh - 48px);grid-template-rows:auto minmax(0,1fr) auto}.course-form-header{position:relative;display:grid;grid-template-columns:minmax(0,1fr) 36px;align-items:center;gap:20px;padding:24px 28px 20px;border-bottom:1px solid var(--color-border-soft);background:var(--color-surface)}.course-form-heading{display:grid;gap:6px}.course-form-heading h1{font-size:1.6rem;font-weight:650;letter-spacing:-.025em}.course-form-heading p{max-width:560px;margin:0;font-size:.86rem;line-height:1.45}.course-form-close{display:grid;width:36px;height:36px;place-items:center;padding:0;border-radius:10px;background:transparent;color:var(--color-muted);cursor:pointer;transition:background-color .16s ease,color .16s ease}.course-form-close:hover{background:var(--color-hover-bg);color:var(--color-text)}.course-form-close:focus-visible{outline:none;box-shadow:0 0 0 3px var(--focus-ring)}.course-form-close:disabled{cursor:not-allowed;opacity:.48}.course-form-content{display:grid;gap:0;overflow-y:auto;overscroll-behavior:contain;padding:0 28px;background:var(--color-surface);scrollbar-color:var(--color-hover-border) transparent}.course-form-section{display:grid;gap:20px;padding:22px 0;border-bottom:1px solid var(--color-border-soft);background:var(--color-surface)}.course-form-section:last-child{border-bottom:0}.course-form-section-heading{min-width:0}.course-form-section-heading h2{margin:0 0 4px;font-size:.98rem;font-weight:650;letter-spacing:-.015em}.course-form-section-heading p{margin:0;font-size:.78rem;line-height:1.4}.course-form-grid{display:grid;gap:14px}.course-form-language-grid,.course-form-settings-grid{grid-template-columns:repeat(2,minmax(0,1fr))}.course-form-field{position:relative;display:grid;min-width:0;align-content:center;gap:3px;cursor:pointer}.course-form-field-label{color:var(--color-muted);font-size:.72rem;font-weight:500}.course-form-select{position:relative;display:block}.course-form-select select,.course-form-goal textarea{width:100%;border:0;border-radius:0;outline:none;background:transparent;color:var(--color-text);font-size:.88rem;font-weight:560}.course-form-select select{min-height:24px;appearance:none;padding:0 28px 0 0;cursor:pointer}.course-form-select>.material-symbol{position:absolute;top:50%;right:0;color:var(--color-muted);font-size:1.05rem;pointer-events:none;transform:translateY(-50%)}.course-form-control:hover{border-color:var(--color-hover-border);background:var(--color-hover-bg)}.course-form-control:focus-within{border-color:var(--color-accent);background:var(--color-surface);box-shadow:0 0 0 3px var(--focus-ring)}.course-form-select select:disabled,.course-form-goal textarea:disabled{cursor:not-allowed;opacity:.58}.course-form-goal textarea{min-height:64px;padding:0;resize:vertical;line-height:1.45}.course-form-goal{cursor:text}.course-form-goal textarea::placeholder{color:var(--color-muted)}.course-form-goal-group{display:grid;gap:7px}.course-form-goal-group>small,.course-form-level-field>small{color:var(--color-muted);font-size:.72rem;line-height:1.4}.course-form-choice-field,.course-form-level-field{display:grid;min-width:0;gap:7px;margin:0;padding:0;border:0}.course-form-segmented{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:10px}.course-form-segmented button{display:grid;min-width:0;min-height:64px;align-items:center;padding:10px 12px;border:1px solid var(--color-border-soft);border-radius:14px;background:var(--color-surface);color:var(--color-muted);cursor:pointer;text-align:left;transition:border-color .16s ease,background-color .16s ease,color .16s ease}.course-form-segmented button:hover{border-color:var(--color-hover-border);background:var(--color-hover-bg);color:var(--color-text)}.course-form-segmented button.is-active{border-color:var(--color-accent);background:var(--color-surface);color:var(--color-accent)}.course-form-segmented button>span:last-child{display:grid;gap:2px}.course-form-segmented strong{color:currentColor;font-size:.8rem;font-weight:650}.course-form-segmented small{color:var(--color-muted);font-size:.7rem}.course-form-segmented button:focus-visible,.course-form-levels button:focus-visible{outline:none;box-shadow:0 0 0 3px var(--focus-ring)}.course-form-segmented button:disabled,.course-form-levels button:disabled{cursor:not-allowed;opacity:.58;transform:none}.course-form-levels{display:grid;grid-template-columns:repeat(7,minmax(46px,1fr));gap:8px}.course-form-levels button{min-height:52px;padding:0 8px;border:1px solid var(--color-border-soft);border-radius:14px;background:var(--color-surface);color:var(--color-muted);cursor:pointer;font-size:.82rem;font-weight:650;transition:border-color .16s ease,background-color .16s ease,color .16s ease}.course-form-levels button:hover{border-color:var(--color-hover-border);background:var(--color-hover-bg);color:var(--color-text)}.course-form-levels button.is-active{border-color:var(--color-accent);background:var(--color-surface);color:var(--color-accent)}.course-form-footer{display:grid;grid-template-columns:minmax(0,1fr) auto;align-items:center;gap:18px;padding:16px 24px;border-top:1px solid var(--color-border-soft);background:var(--color-surface)}.course-form-status{min-width:0}.course-form-status p{display:flex;min-height:22px;align-items:center;gap:7px;margin:0;font-size:.76rem;line-height:1.35}.course-form-actions{display:flex;align-items:center;gap:8px}.course-form-cancel{min-height:44px;border-color:var(--color-border-soft);border-radius:14px}.course-form-submit{min-width:120px;min-height:44px;padding:0 18px;border-radius:14px}.course-form-cancel:hover,.course-form-submit:hover{transform:none}:root[data-theme=dark] .course-empty-intro{border-color:#ffffff1a;background:#11131547}:root[data-theme=dark] .course-create-backdrop{background:#02040894}:root[data-theme=dark] .course-create-dialog{border-color:var(--color-border);background:var(--color-surface);box-shadow:0 24px 64px #0000007a}:root[data-theme=dark] .course-form-segmented button.is-active{border-color:var(--color-accent);color:var(--color-accent)}@keyframes course-backdrop-enter{0%{opacity:0}}@keyframes course-dialog-enter{0%{opacity:0;transform:translateY(6px)}}@media(max-width:700px){.course-create-backdrop{align-items:end;padding:0}.course-create-dialog{width:100%;max-height:94dvh;border-right:0;border-bottom:0;border-left:0;border-radius:20px 20px 0 0}.course-form{max-height:94dvh}.course-form-header{grid-template-columns:minmax(0,1fr) 36px;gap:16px;padding:20px 18px 17px}.course-form-heading h1{font-size:1.45rem}.course-form-heading p{font-size:.78rem}.course-form-content{padding:0 18px}.course-form-section{gap:18px;padding:20px 0}.course-form-language-grid,.course-form-settings-grid{grid-template-columns:1fr}.course-form-levels{grid-template-columns:repeat(4,minmax(46px,1fr))}.course-form-footer{grid-template-columns:1fr;gap:10px;padding:13px 16px max(13px,env(safe-area-inset-bottom))}.course-form-status{display:none}.course-form-actions{width:100%}.course-form-cancel,.course-form-submit{flex:1}.course-form-submit:only-child{flex-basis:100%}@keyframes course-dialog-enter{0%{opacity:0;transform:translateY(34px)}}}@media(max-width:460px){.course-form-header{grid-template-columns:minmax(0,1fr) 34px;padding:17px 15px 15px}.course-form-heading p{display:none}.course-form-close{width:34px;height:34px}.course-form-segmented{grid-template-columns:1fr}}@media(prefers-reduced-motion:reduce){.course-create-backdrop,.course-create-dialog{animation:none}}