:root{--bg: #f3fcfd;--bg-glow: radial-gradient(55% 45% at 100% 0%, rgba(103, 232, 249, .42), transparent 70%), radial-gradient(50% 45% at 0% 100%, rgba(125, 211, 252, .34), transparent 70%), radial-gradient(40% 35% at 45% 45%, rgba(165, 243, 252, .22), transparent 70%);--paper: rgba(255, 255, 255, .82);--ink: #08303a;--muted: #4a6670;--line: #d3eef2;--accent: #0e7490;--accent-dark: #155e75;--accent-soft: #cffafe;--accent-grad: linear-gradient(90deg, #0e7490, #0369a1);--accent-grad-hover: linear-gradient(90deg, #155e75, #075985);--glow: 0 8px 24px rgba(14, 116, 144, .28), 0 0 0 4px rgba(14, 116, 144, .06);--progress-grad: linear-gradient(90deg, #22d3ee, #38bdf8);--sun-soft: #fdf0d5;--sun-ink: #74500e;--rose: #c2410c;--rose-soft: #ffe4d5;--grey-soft: #e7f3f5;--sky-soft: #e0f7fa;--hero-bg: radial-gradient(60% 70% at 100% 0%, rgba(103, 232, 249, .55), transparent 70%), radial-gradient(55% 70% at 0% 100%, rgba(125, 211, 252, .45), transparent 70%), linear-gradient(135deg, #e6fbfd 0%, 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p{margin:0}.lead-text{font-size:1.08rem;max-width:65ch}.empty{display:grid;gap:12px;justify-items:start}.empty p{margin:0}.live-text{color:var(--rose)}.crumbs{color:var(--muted)}.crumbs a{text-decoration:none}.crumbs a:hover{text-decoration:underline}.top{position:sticky;top:0;z-index:10}.who{font-weight:700;color:var(--muted);padding:0 6px}.nav{gap:8px}@media(max-width:560px){.who{display:none}}.footer-row{display:flex;gap:12px;justify-content:space-between;align-items:center;flex-wrap:wrap}.small-brand{font-size:1rem;gap:8px}.btn.big{padding:14px 28px;font-size:1.05rem}.btn.full{width:100%}.btn.danger{background:var(--rose);box-shadow:none}.btn.danger:hover{background:#9a3412}.home>*+*{margin-top:64px}.hero-copy{display:grid;gap:18px}.hero-copy h1{font-size:clamp(2rem,5vw,3rem);margin:0;text-wrap:balance}.hero-copy p{margin:0}.section-title{font-size:1.6rem;margin-bottom:20px}.path-grid{display:grid;gap:20px;grid-template-columns:repeat(auto-fit,minmax(280px,1fr))}.path{display:grid;gap:14px;align-content:start;padding:28px}.path h3{font-size:1.35rem;margin:0}.path .btn{justify-self:start}.path-tag{justify-self:start;font-weight:800;font-size:.85rem;padding:4px 12px;border-radius:999px;background:var(--accent-soft);color:var(--accent-dark)}.children-path{background:linear-gradient(160deg,rgba(255,251,235,.9),var(--paper) 60%);border-color:#f6e3b4}.children-path .path-tag{background:var(--sun-soft);color:var(--sun-ink)}.ticks{list-style:none;margin:0;padding:0;display:grid;gap:8px}.ticks li{padding-left:28px;position:relative}.ticks li:before{content:"✓";position:absolute;left:0;top:0;width:20px;height:20px;border-radius:50%;background:var(--accent-soft);color:var(--accent-dark);font-size:.75rem;font-weight:800;display:grid;place-items:center;margin-top:2px}.steps{list-style:none;padding:0;margin:0}.steps li h3{margin-top:4px}.steps li p{margin:0}.features{display:grid;gap:24px 32px;grid-template-columns:repeat(auto-fit,minmax(220px,1fr))}.features h3{margin-bottom:6px}.features p{margin:0}.cta-band{background:var(--hero-bg);color:var(--ink);border:1px solid rgba(255,255,255,.9);border-radius:24px;padding:40px 24px;text-align:center;display:grid;gap:12px;box-shadow:0 24px 50px -30px #0e749073}.cta-band h2{font-size:1.8rem;margin:0}.cta-band p{margin:0;color:var(--muted)}.auth{max-width:460px;margin:0 auto}.auth h1{margin-bottom:4px}.check-line{align-items:flex-start;line-height:1.45}.check-line input{margin-top:3px;flex:none}.form-page{max-width:680px;margin:0 auto}.field-group{border:0;padding:0;margin:0;display:grid;gap:12px}.field-group legend{font-family:var(--font-head);font-weight:600;font-size:1.1rem;margin-bottom:10px;padding:0}.choice-cards{display:grid;gap:10px;grid-template-columns:repeat(auto-fit,minmax(170px,1fr))}.choice-cards.two{grid-template-columns:repeat(auto-fit,minmax(240px,1fr))}.choice-card{display:flex;gap:10px;align-items:flex-start;border:2px solid var(--line);border-radius:14px;padding:12px 14px;cursor:pointer;font-weight:400;margin:0;background:#fff}.choice-card.on{border-color:var(--accent);background:var(--accent-soft)}.choice-card input{margin-top:3px;flex:none}.choice-card strong{display:block}.two-fields{align-items:flex-end}.two-fields .field+.field{margin-top:0}.course-head{display:flex;gap:16px;align-items:flex-start;justify-content:space-between;flex-wrap:wrap}.course-head h1{margin:8px 0 4px}.course-head p{margin:0}.stretched:after{content:"";position:absolute;inset:0;border-radius:inherit}.course-card{position:relative}.join-box{display:flex;gap:16px;align-items:center;flex-wrap:wrap}.join-box h2,.join-box p{margin:0}.progress-line{display:flex;gap:14px;align-items:center;flex-wrap:wrap}.progress-line .bar{flex:1;min-width:160px;margin:0}.danger-zone{border-top:1px solid var(--line);padding-top:14px}.aud-pill-children{background:var(--sun-soft);color:var(--sun-ink)}.aud-pill-adults{background:var(--accent-soft);color:var(--accent-dark)}.aud-pill-all{background:var(--grey-soft);color:var(--muted)}.course-card.aud-children{border-top:5px solid #f59e0b}.course-card.aud-adults{border-top:5px solid var(--accent)}[data-audience=children]{--radius: 24px}[data-audience=children] h1{font-size:clamp(2rem,5vw,2.6rem);color:var(--accent-dark)}[data-audience=children] .lesson-row{padding:16px 18px;font-size:1.08rem}[data-audience=children] .num{width:42px;height:42px;background:var(--sun-soft);color:var(--sun-ink);font-size:1.05rem}[data-audience=children] .num.done{background:linear-gradient(135deg,#f59e0b,#f97316);color:#fff}[data-audience=children] .bar{height:12px}[data-audience=children] .bar>span{background:linear-gradient(90deg,#f59e0b,#22d3ee)}[data-audience=children] .btn{padding-left:26px;padding-right:26px}[data-audience=adults] .lesson-row{padding:10px 14px}[data-audience=adults]{--radius: 14px}.lobby-grid{display:grid;gap:24px;grid-template-columns:minmax(0,1.1fr) minmax(0,1fr);align-items:start;margin-top:12px}@media(max-width:760px){.lobby-grid{grid-template-columns:1fr}}.stage{position:relative;background:var(--ink);border-radius:var(--radius);overflow:hidden;aspect-ratio:16 / 9;max-width:100%}.stage video{position:absolute;inset:0;width:100%;height:100%;object-fit:cover}.teacher-stage video{object-fit:contain}.stage-empty{position:absolute;inset:0;display:grid;place-items:center;color:var(--line);font-weight:700;text-align:center;padding:16px}.stage-empty-box{display:grid;place-items:center;color:var(--line);font-weight:700;text-align:center;padding:16px}.stage-label{position:absolute;left:10px;bottom:10px;background:#08303abf;color:#fff;font-size:.8rem;font-weight:700;padding:3px 10px;border-radius:999px}.toggle{border:2px solid var(--line);background:#fff;color:var(--ink);border-radius:999px;padding:10px 18px;font:inherit;font-weight:800;cursor:pointer}.toggle.on{border-color:var(--accent);color:var(--accent-dark);background:var(--accent-soft)}.toggle.hand-up{border-color:#f59e0b;background:var(--sun-soft);color:var(--sun-ink)}.toggle.rec-on{border-color:var(--rose);background:var(--rose-soft);color:#7c2d12}.toggle:disabled{opacity:.5;cursor:default}.room{display:grid;gap:16px}.room-head{display:flex;justify-content:space-between;align-items:flex-end;gap:12px;flex-wrap:wrap}.room-title{margin:2px 0 0;font-size:1.6rem}.rec{display:inline-flex;align-items:center;gap:8px;background:var(--rose);color:#fff;font-weight:800;font-size:.85rem;padding:5px 12px;border-radius:999px}.rec:before{content:"";width:9px;height:9px;border-radius:50%;background:#fff;animation:blink 1.4s infinite}@keyframes blink{50%{opacity:.25}}@media(prefers-reduced-motion:reduce){.rec:before{animation:none}}.room-main{position:relative}.self-view{position:absolute;right:12px;bottom:12px;width:min(28%,220px);border:2px 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a:hover{color:var(--accent)}@media(max-width:640px){.footer-grid{grid-template-columns:1fr}}.home>*+*{margin-top:80px}.hero-band{position:relative;overflow:hidden;border-radius:28px;color:var(--ink);border:1px solid rgba(255,255,255,.9);padding:clamp(32px,6vw,64px) clamp(20px,5vw,56px) 28px;background:var(--hero-bg);box-shadow:0 30px 60px -34px #0e749073}.hero-band:before{content:"";position:absolute;inset:0;opacity:.08;pointer-events:none;background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='80' height='80' viewBox='0 0 80 80'%3E%3Cg fill='none' stroke='%230e7490' stroke-width='1.2'%3E%3Crect x='20' y='20' width='40' height='40'/%3E%3Crect x='20' y='20' width='40' height='40' transform='rotate(45 40 40)'/%3E%3C/g%3E%3C/svg%3E")}.hero-inner{position:relative;display:grid;grid-template-columns:minmax(0,1.35fr) 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