:root{--bg:#f8fafc;--surface:#fff;--surface-2:#f1f5f9;--primary:#1e293b;--primary-2:#0f172a;--coral:#e17055;--coral-light:#fde8e3;--coral-dark:#a8503c;--text-main:#0f172a;--text-muted:#475569;--text-hint:#94a3b8;--border:#e2e8f0;--success:#2f855a;--shadow:0 18px 52px #0f172a12;--radius-lg:24px;--radius-md:16px;--radius-sm:12px;--max:1160px;--font-inter:Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;--font-jakarta:"Plus Jakarta Sans", Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif}*{box-sizing:border-box}html{background:var(--bg)}body{background:radial-gradient(circle at top left, #e170551c, transparent 26rem), linear-gradient(180deg, #fcfdff 0%, var(--bg) 48%, #f6f9fc 100%);min-height:100vh;color:var(--text-main);font-family:var(--font-inter), system-ui, sans-serif;margin:0}a{color:inherit;text-decoration:none}button,input,select,textarea{font:inherit}button{cursor:pointer}.app-shell{width:min(100%, var(--max));margin:0 auto;padding:26px 24px 64px}.site-header{justify-content:space-between;align-items:center;gap:20px;padding:10px 0 28px;display:flex}.site-nav,.site-actions,.cluster{flex-wrap:wrap;align-items:center;gap:10px;display:flex}.site-nav a,.locale-link{color:var(--text-muted);border-radius:999px;padding:9px 12px;font-size:13px;font-weight:700}.site-nav a:hover,.locale-link:hover{color:var(--primary-2);background:#ffffffc2}.wordmark{align-items:center;display:inline-flex}.btn{border:0;border-radius:12px;justify-content:center;align-items:center;gap:8px;min-height:44px;padding:12px 18px;font-size:14px;font-weight:800;transition:opacity .15s,transform .1s,background .15s;display:inline-flex}.btn:hover{opacity:.88;transform:translateY(-1px)}.btn-primary{background:var(--primary);color:#fff}.btn-coral{background:var(--coral);color:#fff}.btn-outline{border:1.5px solid var(--border);color:var(--primary);background:#fff9}.btn-ghost{background:var(--surface-2);color:var(--text-main)}.hero,.surface-panel,.lesson-stage,.editor-shell{box-shadow:var(--shadow);background:linear-gradient(135deg,#fffffffa,#f1f5f9eb);border:1px solid #e2e8f0f2;border-radius:32px}.hero{grid-template-columns:minmax(0,1.12fr) minmax(320px,.88fr);gap:28px;min-height:560px;padding:34px;display:grid}.hero-content,.stack{flex-direction:column;gap:18px;display:flex}.eyebrow{color:var(--coral-dark);letter-spacing:.08em;text-transform:uppercase;font-size:12px;font-weight:800}.hero h1,.page-title,.section-title,.metric-value{color:var(--primary-2);font-family:var(--font-jakarta), system-ui, sans-serif;letter-spacing:-.04em}.hero h1,.page-title{margin:0;font-size:clamp(38px,5.4vw,68px);line-height:1}.section-title{margin:0;font-size:clamp(28px,3vw,42px);line-height:1.08}.lead{color:var(--text-muted);max-width:62ch;margin:0;font-size:16px;line-height:1.75}.hero-card,.card,.course-card,.lesson-card,.stat-card,.form-card{background:var(--surface);border:1px solid var(--border);border-radius:var(--radius-md);box-shadow:0 10px 32px #0f172a08}.hero-card{border-radius:var(--radius-lg);flex-direction:column;justify-content:space-between;align-self:stretch;gap:18px;padding:22px;display:flex}.mock-window{background:linear-gradient(135deg, var(--surface-2), #fff);border:1px solid var(--border);border-radius:20px;padding:18px}.mock-top{justify-content:space-between;align-items:center;margin-bottom:18px;display:flex}.grid-2,.grid-3,.dashboard-grid,.editor-grid{gap:16px;display:grid}.grid-2{grid-template-columns:repeat(2,minmax(0,1fr))}.grid-3{grid-template-columns:repeat(3,minmax(0,1fr))}.dashboard-grid{grid-template-columns:minmax(0,1.35fr) minmax(280px,.65fr)}.editor-grid{grid-template-columns:minmax(0,.9fr) minmax(320px,1.1fr)}.card,.course-card,.lesson-card,.stat-card,.form-card{padding:18px}.course-card,.lesson-card{flex-direction:column;gap:14px;display:flex}.meta{color:var(--text-muted);font-size:13px;line-height:1.55}.tag{white-space:nowrap;border-radius:999px;align-items:center;padding:6px 11px;font-size:12px;font-weight:800;display:inline-flex}.tag-coral{background:var(--coral-light);color:var(--coral-dark)}.tag-navy{color:#1e3a5f;background:#e1e7f0}.tag-slate{background:var(--surface-2);color:var(--text-muted)}.page-section{margin-top:30px}.section-header{justify-content:space-between;align-items:end;gap:20px;margin-bottom:18px;display:flex}.waveform{align-items:center;gap:4px;height:82px;display:flex}.wave-bar{background:#94a3b86b;border-radius:999px;flex:1;min-width:4px}.wave-bar-active{background:#e17055e0}.progress{background:var(--border);border-radius:999px;height:7px;overflow:hidden}.progress>span{background:var(--coral);height:100%;display:block}.root-gateway{min-height:100vh}.root-gateway-header{justify-content:space-between;align-items:center;padding:10px 0 28px;display:flex}.root-gateway-hero{color:#fff;background:radial-gradient(circle at 14% 10%,#e1705533,#0000 22rem),linear-gradient(135deg,#0f172a 0%,#1e293b 55%,#26384d 100%);border:1px solid #ffffff1a;border-radius:32px;grid-template-columns:minmax(0,1fr) minmax(320px,.68fr);align-items:center;gap:36px;min-height:620px;padding:40px;display:grid;box-shadow:0 24px 70px #0f172a33}.root-gateway-copy{flex-direction:column;gap:20px;display:flex}.root-kicker{color:#ffffffd1;background:#ffffff1a;border:1px solid #ffffff1f;border-radius:999px;align-items:center;gap:8px;width:fit-content;padding:9px 12px;font-size:13px;font-weight:900;display:inline-flex}.root-kicker svg{color:var(--coral)}.root-gateway h1{color:#fff;letter-spacing:-.04em;max-width:840px;margin:0;font-family:Plus Jakarta Sans,system-ui,sans-serif;font-size:clamp(46px,6vw,82px);line-height:.98}.root-gateway-copy p{color:#ffffffb8;max-width:680px;margin:0;font-size:17px;line-height:1.75}.root-language-actions{flex-wrap:wrap;gap:12px;display:flex}.root-language-actions .btn{min-width:150px}.root-language-panel{color:var(--text-main);background:#f8fafcf5;border:1px solid #ffffff5c;border-radius:28px;gap:14px;padding:24px;display:grid;box-shadow:0 28px 90px #02061742}.root-language-panel>svg{background:var(--primary);color:#fff;border-radius:16px;padding:8px}.root-language-card{background:var(--surface);border:1px solid var(--border);border-radius:18px;gap:8px;padding:18px;transition:transform .1s,border-color .15s;display:grid}.root-language-card:hover{border-color:#e1705580;transform:translateY(-1px)}.root-language-card span{color:var(--coral-dark);text-transform:uppercase;font-size:12px;font-weight:900}.root-language-card strong{color:var(--primary-2);letter-spacing:-.03em;font-family:Plus Jakarta Sans,system-ui,sans-serif;font-size:26px}.root-language-card p{color:var(--text-muted);margin:0;font-size:14px;line-height:1.6}.landing-page{gap:30px;display:grid}.landing-hero{color:#fff;background:radial-gradient(circle at 16% 12%,#e1705533,#0000 23rem),linear-gradient(135deg,#0f172a 0%,#1e293b 54%,#26384d 100%);border:1px solid #ffffff1a;border-radius:32px;grid-template-columns:minmax(0,1.04fr) minmax(320px,.96fr);gap:34px;min-height:610px;padding:38px;display:grid;position:relative;overflow:hidden;box-shadow:0 24px 70px #0f172a33}.landing-hero:after{content:"";background:linear-gradient(#ffffff2e,#0000);height:1px;position:absolute;inset:0 36px auto}.landing-hero-copy{flex-direction:column;align-self:center;gap:20px;max-width:720px;display:flex}.landing-hero h1{color:#fff;font-family:var(--font-jakarta), system-ui, sans-serif;letter-spacing:-.04em;margin:0;font-size:clamp(42px,5.8vw,76px);line-height:.98}.landing-hero .lead,.landing-band-slate .lead,.landing-cta p{color:#ffffffb8}.landing-player{color:var(--text-main);background:#f8fafcf5;border:1px solid #ffffff5c;border-radius:28px;align-self:center;gap:22px;padding:24px;display:grid;box-shadow:0 28px 90px #02061742}.landing-player h2{color:var(--primary-2);font-family:var(--font-jakarta), system-ui, sans-serif;letter-spacing:-.035em;margin:5px 0 0;font-size:clamp(24px,3vw,38px);line-height:1.05}.player-orbit{grid-template-columns:auto minmax(0,1fr);align-items:center;gap:16px;display:grid}.play-disc{background:var(--coral);color:#fff;border-radius:999px;justify-content:center;align-items:center;width:72px;height:72px;display:inline-flex}.lesson-controls,.course-facts{flex-wrap:wrap;gap:10px;display:flex}.lesson-controls span,.course-facts span{background:var(--surface-2);border:1px solid var(--border);color:var(--text-muted);border-radius:999px;padding:8px 11px;font-size:12px;font-weight:800}.landing-band{box-shadow:var(--shadow);background:linear-gradient(135deg,#fffffffa,#f1f5f9e6);border:1px solid #e2e8f0eb;border-radius:28px;padding:30px}.landing-band-slate{color:#fff;background:linear-gradient(135deg,#111827,#1e293b)}.landing-band-slate .section-title{color:#fff}.landing-section-header{align-items:flex-start}.landing-section-header .lead{max-width:420px}.area-grid{grid-template-columns:repeat(4,minmax(0,1fr));gap:14px;display:grid}.area-card{background:#ffffff14;border:1px solid #ffffff1f;border-radius:18px;min-height:150px;padding:18px}.area-index{color:var(--coral);margin-bottom:26px;font-size:12px;font-weight:900;display:block}.area-card h3,.feature-card h3,.landing-cta h2{font-family:var(--font-jakarta), system-ui, sans-serif;letter-spacing:-.03em;margin:0;line-height:1.08}.area-card h3{color:#fff;font-size:22px}.featured-course{grid-template-columns:minmax(0,1fr) minmax(300px,.72fr);align-items:center;gap:28px;display:grid}.featured-copy{flex-direction:column;gap:16px;display:flex}.course-visual{border:1px solid var(--border);color:var(--primary);background:radial-gradient(circle at 100% 0,#e170553d,#0000 11rem),linear-gradient(145deg,#f8fafc,#e8eef5);border-radius:26px;gap:20px;min-height:320px;padding:24px;display:grid}.course-visual>svg{background:var(--primary);color:#fff;border-radius:18px;padding:10px}.course-visual p{color:var(--text-muted);align-self:end;margin:0;font-size:13px;font-weight:800}.mini-wave{align-items:center;gap:7px;height:150px;display:flex}.mini-wave span{background:linear-gradient(#e17055eb,#1e293bb8);border-radius:999px;flex:1;min-width:5px}.landing-features{gap:20px;display:grid}.landing-feature-intro{max-width:700px}.feature-card{background:var(--surface);border:1px solid var(--border);border-radius:20px;gap:14px;padding:20px;display:grid;box-shadow:0 12px 38px #0f172a0a}.feature-card h3{color:var(--primary-2);font-size:22px}.feature-icon{background:var(--coral-light);color:var(--coral-dark);border-radius:16px;justify-content:center;align-items:center;width:48px;height:48px;display:inline-flex}.landing-cta{background:linear-gradient(135deg, var(--primary-2), var(--primary));color:#fff;text-align:center;border-radius:28px;place-items:center;padding:38px 24px;display:grid}.landing-cta svg{color:var(--coral)}.landing-cta h2{color:#fff;max-width:720px;font-size:clamp(30px,4vw,48px)}.landing-cta p{max-width:640px;line-height:1.7}.metric-value{font-size:36px;font-weight:800;line-height:1}.lesson-stage{grid-template-columns:minmax(0,1fr) minmax(280px,.42fr);gap:24px;padding:26px;display:grid}.audio-player{background:var(--surface);border:1px solid var(--border);border-radius:24px;padding:22px}.audio-player:focus-visible{outline:2px solid var(--coral);outline-offset:3px}.wavesurfer-canvas{min-height:80px;margin:14px 0 4px}.video-frame{aspect-ratio:16/9;background:var(--primary-2);border-radius:var(--radius-md);width:100%;position:relative;overflow:hidden}.video-frame iframe{border:0;width:100%;height:100%;position:absolute;inset:0}.media-stack{gap:18px;display:grid}.player-toolbar{flex-wrap:wrap;justify-content:space-between;align-items:center;gap:12px;margin-top:14px;display:flex}.icon-button{background:var(--primary);color:#fff;border:0;border-radius:999px;justify-content:center;align-items:center;width:50px;height:50px;display:inline-flex}.segmented{background:var(--surface-2);border:1px solid var(--border);border-radius:999px;padding:4px;display:inline-flex}.segmented button{color:var(--text-muted);background:0 0;border:0;border-radius:999px;min-height:34px;padding:8px 11px;font-size:12px;font-weight:800}.segmented button[aria-pressed=true]{background:var(--coral);color:#fff}.editor-shell{padding:24px}.field{gap:8px;display:grid}.field label{color:var(--text-main);font-size:13px;font-weight:800}.field input,.field textarea,.field select{border:1.5px solid var(--border);color:var(--text-main);background:#fff;border-radius:12px;width:100%;min-height:46px;padding:12px 13px}.field textarea{resize:vertical;min-height:118px}.form-stack{gap:14px;display:grid}.site-footer{background:var(--primary);color:#fff;border:1px solid #ffffff14;border-radius:24px;justify-content:space-between;align-items:center;gap:24px;margin-top:38px;padding:22px 24px;display:flex;box-shadow:0 18px 52px #0f172a24}.footer-brand{align-items:center;gap:18px;min-width:0;display:flex}.footer-brand p{color:#ffffffad;margin:0;font-size:13px;font-weight:600;line-height:1.5}.footer-nav{flex-wrap:wrap;justify-content:flex-end;gap:8px;display:flex}.footer-nav a{color:#ffffffb8;border-radius:999px;padding:9px 11px;font-size:13px;font-weight:800}.footer-nav a:hover{color:#fff;background:#ffffff14}@media (max-width:980px){.root-gateway-hero,.hero,.landing-hero,.featured-course,.lesson-stage,.dashboard-grid,.editor-grid{grid-template-columns:1fr}.area-grid{grid-template-columns:repeat(2,minmax(0,1fr))}.grid-3{grid-template-columns:1fr 1fr}}@media (max-width:720px){.app-shell{padding:18px 16px 44px}.site-header{flex-direction:column;align-items:flex-start}.site-nav{width:100%}.hero,.root-gateway-hero,.landing-hero,.landing-band,.lesson-stage,.editor-shell{border-radius:24px;padding:22px}.landing-hero,.root-gateway-hero{min-height:auto}.landing-player{border-radius:22px;padding:18px}.area-grid,.grid-2,.grid-3{grid-template-columns:1fr}.section-header,.player-toolbar,.site-footer,.footer-brand{flex-direction:column;align-items:flex-start}.footer-nav{justify-content:flex-start}}