/* Lenguo — tokens from the Lenguo Design Library (dark theme) */
@font-face{font-family:"Figtree";src:url("fonts/Figtree-400.woff2") format("woff2");font-weight:400;font-style:normal;font-display:swap}
@font-face{font-family:"Figtree";src:url("fonts/Figtree-500.woff2") format("woff2");font-weight:500;font-style:normal;font-display:swap}
@font-face{font-family:"Figtree";src:url("fonts/Figtree-600.woff2") format("woff2");font-weight:600;font-style:normal;font-display:swap}
@font-face{font-family:"Figtree";src:url("fonts/Figtree-700.woff2") format("woff2");font-weight:700;font-style:normal;font-display:swap}
@font-face{font-family:"Figtree";src:url("fonts/Figtree-800.woff2") format("woff2");font-weight:800;font-style:normal;font-display:swap}

:root{
  --bg:#0a0910;--surface:#17161c;--surface-raised:#221f2a;--line:#2a2833;
  --stage-top:#0a0910;--stage-bottom:#2a1466;
  --brand:#8533ff;--brand-pressed:#6f1fe8;--brand-soft:#1e1040;--brand-text:#b794ff;--on-brand:#ffffff;
  --ink:#ffffff;--ink-muted:#a19dad;--ink-subtle:#8a8694;
  --coral:#ff3b5c;--success:#2fd17a;
  --focus-ring:0 0 0 3px #b794ff;--mic-glow:0 0 0 8px #1e1040;
  --font-sans:Figtree,-apple-system,system-ui,sans-serif;
  color-scheme:dark;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth;scroll-padding-top:80px}
body{margin:0;background:var(--bg);color:var(--ink);font-family:var(--font-sans);font-size:17px;line-height:24px;-webkit-font-smoothing:antialiased;overflow-x:hidden}
img{max-width:100%}
a{color:var(--brand-text)}a:hover{color:var(--ink)}
:focus-visible{outline:2px solid var(--bg);box-shadow:var(--focus-ring);border-radius:8px}
.wrap{max-width:1200px;margin:0 auto;padding:0 24px}
.sr-only{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0,0,0,0);border:0}
.lg-svg{width:20px;height:20px;flex:none;display:block}

/* Components (from the design library's bundle.css) */
.lg-btn{font:inherit;font-size:17px;line-height:22px;font-weight:600;height:56px;padding:0 24px;border:0;border-radius:999px;display:inline-flex;align-items:center;justify-content:center;gap:8px;cursor:pointer;text-decoration:none;transition:background-color .15s,transform .1s}
.lg-btn:active{transform:scale(.98)}
.lg-btn-block{width:100%}
.lg-btn-md{height:44px;padding:0 20px;font-size:15px}
.lg-btn-primary{background:var(--brand);color:var(--on-brand)}
.lg-btn-primary:hover{color:var(--on-brand);background:var(--brand-pressed)}
.lg-btn-secondary{background:var(--surface);color:var(--ink)}
.lg-btn-secondary:hover{background:var(--surface-raised);color:var(--ink)}
.lg-icon-btn{border:0;border-radius:999px;display:inline-flex;align-items:center;justify-content:center;background:var(--brand);color:var(--on-brand);width:72px;height:72px;padding:0;flex:none;transition:box-shadow .3s}
.lg-icon-btn .lg-svg{width:30px;height:30px}
.lg-icon-btn.rec{box-shadow:var(--mic-glow)}
.lg-bubble{max-width:82%;padding:12px 16px;border-radius:24px;font-size:16px;line-height:23px}
.lg-bubble-tutor{background:var(--surface);color:var(--ink);border-bottom-left-radius:8px}
.lg-bubble-user{background:var(--brand);color:var(--on-brand);border-bottom-right-radius:8px}
.lg-hint{font:inherit;font-size:15px;line-height:20px;font-weight:500;display:inline-flex;align-items:center;gap:8px;height:44px;padding:0 16px;background:var(--brand-soft);color:var(--brand-text);border:0;border-radius:999px}
.lg-callout{padding:12px 16px;background:var(--brand-soft);color:var(--ink);border:2px solid var(--brand);border-radius:16px;font-size:15px;line-height:20px}
.lg-plan{font:inherit;width:100%;text-align:left;display:flex;align-items:center;gap:12px;padding:16px 20px;background:var(--surface);color:var(--ink);border:2px solid transparent;border-radius:16px;cursor:pointer}
.lg-plan[aria-checked="true"]{background:var(--brand-soft);border-color:var(--brand)}
.lg-plan-body{flex:1}
.lg-plan-title{font-size:17px;line-height:22px;font-weight:600}
.lg-plan-price{font-size:15px;line-height:20px;color:var(--ink-muted);margin-top:4px}
.lg-radio{width:24px;height:24px;border-radius:999px;border:2px solid var(--ink-subtle);display:inline-flex;align-items:center;justify-content:center;flex:none}
.lg-radio .lg-svg{width:14px;height:14px;visibility:hidden}
.lg-plan[aria-checked="true"] .lg-radio{background:var(--brand);border-color:var(--brand);color:var(--on-brand)}
.lg-plan[aria-checked="true"] .lg-radio .lg-svg{visibility:visible}
.lg-badge{display:inline-flex;align-items:center;height:22px;padding:0 8px;border-radius:8px;font-size:11px;line-height:14px;font-weight:700;letter-spacing:.06em;text-transform:uppercase;background:var(--brand);color:var(--on-brand);white-space:nowrap}
.lg-badge-soft{background:var(--brand-soft);color:var(--brand-text)}
.lg-badge-success{background:var(--success);color:var(--bg)}
.lg-field{display:flex;align-items:center;height:56px;padding:0 20px;background:var(--surface);border:2px solid transparent;border-radius:16px;flex:1 1 260px;min-width:0}
.lg-field:focus-within{border-color:var(--brand)}
.lg-field input{flex:1;min-width:0;font:inherit;font-size:17px;background:none;border:0;outline:0;color:var(--ink)}
.lg-field input::placeholder{color:var(--ink-subtle)}

/* Layout */
.nav{position:sticky;top:0;z-index:30;background:rgba(10,9,16,.78);-webkit-backdrop-filter:blur(14px);backdrop-filter:blur(14px);border-bottom:1px solid var(--line)}
.nav .wrap{display:flex;align-items:center;gap:32px;padding-top:12px;padding-bottom:12px}
.nav-links{display:flex;gap:28px;flex:1}
.nl{color:var(--ink-muted);text-decoration:none;font-weight:500;font-size:15px}
.nl:hover{color:var(--ink)}
.eyebrow{font-size:13px;font-weight:700;letter-spacing:.08em;text-transform:uppercase;color:var(--brand-text)}
.h2{margin:14px 0 0;font-size:clamp(32px,4vw,52px);line-height:1.08;font-weight:800;letter-spacing:-.03em}
.lead{font-size:18px;line-height:28px;color:var(--ink-muted)}
.muted{color:var(--ink-muted)}
.row{display:flex;flex-wrap:wrap}
.check{display:inline-flex;gap:10px;align-items:center}
.check .lg-svg{color:var(--success)}
.card{background:var(--surface);border-radius:24px}
.stage{background:linear-gradient(180deg,var(--stage-top) 0%,var(--stage-bottom) 100%);border:1px solid var(--line)}

/* Hero */
.hero{padding:72px 0 88px}
.hero .wrap{display:flex;flex-wrap:wrap;gap:56px;align-items:center}
.hero-copy{flex:1 1 460px;min-width:0}
.hero-room{flex:1 1 520px;min-width:0;position:relative}
.pill{display:inline-flex;align-items:center;gap:10px;padding:6px 14px 6px 6px;border-radius:999px;background:var(--surface);border:1px solid var(--line);font-size:14px;font-weight:600;color:var(--ink-muted)}
h1{margin:24px 0 0;font-size:clamp(42px,5.6vw,72px);line-height:1.02;font-weight:800;letter-spacing:-.035em}
.rot{display:inline-block;min-height:1.05em;overflow:hidden;vertical-align:bottom}
.word{display:inline-block;color:var(--brand-text)}
.word.anim{animation:wordIn .6s cubic-bezier(.2,.7,.2,1) both}
.room{position:relative;border-radius:28px;padding:20px}
.room-top{display:flex;align-items:center;justify-content:space-between;gap:12px;flex-wrap:wrap;font-size:13px;font-weight:600;color:var(--ink-muted)}
.clock{display:inline-flex;align-items:center;gap:8px;height:30px;padding:0 12px;border-radius:999px;background:rgba(10,9,16,.6);font-size:13px;font-weight:700;color:var(--ink);font-variant-numeric:tabular-nums}
.live-dot{width:8px;height:8px;border-radius:999px;background:var(--coral);animation:dot 1.2s ease-in-out infinite}
.tiles{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:12px;margin-top:16px}
.tile{position:relative;border-radius:16px;overflow:hidden;background:rgba(23,22,28,.72);border:2px solid transparent;transition:border-color .3s,transform .3s}
.tile img{width:100%;height:auto;aspect-ratio:1/1;object-fit:cover;display:block}
.tile.on{border-color:var(--brand);transform:translateY(-4px);animation:ring 1.4s ease-out infinite}
.tile-label{position:absolute;left:8px;right:8px;bottom:8px;display:flex;align-items:center;justify-content:space-between;gap:6px;padding:6px 10px;border-radius:10px;background:rgba(10,9,16,.78)}
.tile-label b{display:block;font-size:13px;line-height:16px}
.tile-label small{display:block;font-size:11px;line-height:14px;color:var(--ink-muted)}
.eqs{display:none;gap:2px;align-items:flex-end;height:14px;background:var(--brand);padding:4px;border-radius:6px;box-sizing:content-box}
.tile.on .eqs{display:flex}
.eqs i{display:block;width:3px;height:100%;background:var(--on-brand);border-radius:2px;animation:eq .8s ease-in-out infinite;transform-origin:bottom}
.eqs i:nth-child(2){animation-delay:.2s}.eqs i:nth-child(3){animation-delay:.4s}
.chat{height:268px;margin-top:16px;display:flex;flex-direction:column;justify-content:flex-end;gap:10px;overflow:hidden}
.msg{display:flex;flex-direction:column;align-items:flex-start;gap:4px;animation:msgIn .45s cubic-bezier(.2,.7,.2,1) both}
.msg.user{align-items:flex-end}
.who{font-size:12px;font-weight:600;color:var(--ink-muted);padding:0 6px}
.you{display:flex;align-items:center;gap:16px;margin-top:18px;padding:12px 12px 12px 20px;border-radius:999px;background:rgba(10,9,16,.6)}
.you-label{font-size:12px;font-weight:700;color:var(--ink-muted);letter-spacing:.06em;text-transform:uppercase}
.wave{display:flex;align-items:center;gap:3px;height:28px;margin-top:4px}
.wave i{display:block;width:4px;height:100%;border-radius:999px;background:var(--ink-subtle);transform:scaleY(.2);transition:background .3s}
.wave.live i{background:var(--brand-text);animation:eq .9s ease-in-out infinite}
.wave i:nth-child(2n){animation-delay:.15s}.wave i:nth-child(3n){animation-delay:.3s}.wave i:nth-child(5n){animation-delay:.45s}.wave i:nth-child(7n){animation-delay:.6s}
.float{position:absolute;display:flex;gap:10px;align-items:center;padding:10px 14px;border-radius:16px;background:var(--surface);border:1px solid var(--line)}
.float-prep{top:-44px;left:-28px}
.float-fix{right:-20px;bottom:112px;max-width:240px;align-items:flex-start;border:2px solid var(--success);opacity:0;transform:translateY(16px) scale(.9);transition:opacity .4s,transform .5s cubic-bezier(.2,.7,.2,1)}
.float-fix.show{opacity:1;transform:none}
.float b{display:block;font-size:13px}
.float small{display:block;font-size:12px;line-height:16px;color:var(--ink-muted)}
.disc{display:flex;width:32px;height:32px;border-radius:999px;background:var(--brand-soft);color:var(--brand-text);align-items:center;justify-content:center;flex:none}

/* Marquee */
.exams{border-top:1px solid var(--line);border-bottom:1px solid var(--line);padding:28px 0;background:var(--surface)}
.marq{overflow:hidden;-webkit-mask-image:linear-gradient(90deg,transparent,#000 8%,#000 92%,transparent);mask-image:linear-gradient(90deg,transparent,#000 8%,#000 92%,transparent)}
.track{display:flex;width:max-content;animation:marquee 40s linear infinite}
.marq:hover .track{animation-play-state:paused}
.exam{display:flex;align-items:center;gap:10px;margin-right:12px;height:52px;padding:0 20px;border-radius:999px;background:var(--bg);border:1px solid var(--line);white-space:nowrap}
.exam small{font-size:12px;font-weight:800;color:var(--ink-muted);letter-spacing:.06em}
.exam span{font-size:16px;font-weight:600}

/* Sections */
.sec{padding:110px 0}
.cards{display:flex;flex-wrap:wrap;gap:16px;margin-top:48px}
.why{flex:1 1 300px;padding:28px;border:2px solid transparent;transition:transform .25s,border-color .25s}
.why:hover{transform:translateY(-6px);border-color:var(--brand)}
.why .n{font-size:44px;font-weight:800;color:var(--brand-text);letter-spacing:-.03em}
.why h3,.step h3{margin:14px 0 8px;font-size:21px;line-height:27px;font-weight:700}
.why p,.step p{margin:0;font-size:16px;line-height:24px;color:var(--ink-muted)}
.step{flex:1 1 340px;border-radius:28px;overflow:hidden;background:var(--surface);display:flex;flex-direction:column}
.step-vis{height:260px;display:flex;align-items:center;justify-content:center;gap:20px;padding:24px;background:linear-gradient(180deg,var(--stage-top),var(--stage-bottom))}
.step-body{padding:28px}
.step-body .k{font-size:13px;font-weight:800;color:var(--brand-text)}
.step-body h3{margin-top:8px}
.timer{--p:0%;width:132px;height:132px;border-radius:999px;display:flex;align-items:center;justify-content:center;flex:none;background:conic-gradient(var(--brand) var(--p),var(--line) 0);animation:sweep 8s linear infinite}
.timer>div{width:112px;height:112px;border-radius:999px;background:var(--bg);display:flex;flex-direction:column;align-items:center;justify-content:center}
.chipset{display:flex;gap:8px}
.chipset span{height:30px;padding:0 12px;border-radius:999px;background:var(--surface);color:var(--ink-muted);font-size:13px;font-weight:700;display:inline-flex;align-items:center}
.chipset span.on{background:var(--brand);color:var(--on-brand)}
.bar{height:8px;border-radius:99px;background:var(--line);overflow:hidden}
.bar.lg{height:10px;margin-top:8px}
.fill{display:block;height:100%;border-radius:999px;background:var(--brand);transform-origin:left;transform:scaleX(0);transition:transform 1.4s cubic-bezier(.2,.7,.2,1)}
.vis .fill,.fill.vis{transform:scaleX(1)}
.tab{font:inherit;cursor:pointer;text-align:left;width:100%;border-radius:16px;padding:16px 20px;background:var(--surface);color:var(--ink);border:2px solid transparent;display:flex;gap:16px;align-items:center;transition:background .2s,border-color .2s}
.tab:hover{background:var(--surface-raised)}
.tab[aria-selected="true"]{border-color:var(--brand);background:var(--brand-soft)}
.tab .num{width:44px;height:44px;border-radius:999px;background:var(--bg);display:flex;align-items:center;justify-content:center;font-size:13px;font-weight:800;flex:none}
.tab b{display:block;font-size:17px;line-height:22px}
.tab small{display:block;font-size:14px;line-height:20px;color:var(--ink-muted)}
.tab .dur{font-size:13px;font-weight:700;color:var(--ink-muted);white-space:nowrap}
.panel{display:flex;flex-direction:column;gap:18px}
.panel[hidden]{display:none}
.swap{animation:fadeSwap .5s ease both}
.convo{display:flex;flex-direction:column;gap:12px;padding:18px;border-radius:20px;background:rgba(10,9,16,.55)}
.person{display:flex;gap:12px;align-items:center}
.person img{width:48px;height:48px;border-radius:12px;background:var(--brand-soft)}
.person b{display:block;font-size:15px}
.person small{display:block;font-size:13px;color:var(--ink-muted)}
.chip{font:inherit;font-size:14px;font-weight:700;cursor:pointer;border-radius:999px;height:40px;padding:0 16px;background:var(--bg);color:var(--ink-muted);border:2px solid transparent}
.chip[aria-pressed="true"]{border-color:var(--brand);color:var(--ink);background:var(--brand-soft)}
.fix{display:flex;gap:12px;padding:14px 16px;border-radius:16px;background:var(--surface);font-size:15px;line-height:22px}
.cmp-box{margin-top:44px;overflow-x:auto;border-radius:24px;border:1px solid var(--line)}
.cmp{width:100%;min-width:720px;border-collapse:collapse;font-size:16px}
.cmp td,.cmp th{padding:16px 18px;border-bottom:1px solid var(--line);text-align:left;vertical-align:middle}
.cmp thead th{font-size:13px;font-weight:700;letter-spacing:.06em;text-transform:uppercase;color:var(--ink-muted)}
.cmp tbody th{font-weight:600}
.cmp tr:last-child td,.cmp tr:last-child th{border-bottom:0}
.cmp .hl{background:var(--brand-soft)}
.yes,.no{display:inline-flex;align-items:center;gap:8px;font-weight:700}
.yes{color:var(--success)}.no{color:var(--coral)}
.txt{color:var(--ink-muted);font-weight:600}
.qbtn{font:inherit;cursor:pointer;width:100%;text-align:left;background:none;border:0;color:var(--ink);padding:22px 0;display:flex;gap:16px;align-items:center;font-size:18px;font-weight:600}
.qbtn .lg-svg{color:var(--brand-text);transition:transform .3s}
.qbtn[aria-expanded="true"] .lg-svg{transform:rotate(45deg)}
.qa{border-bottom:1px solid var(--line)}
.qa p{margin:0 0 24px;max-width:700px;font-size:17px;line-height:26px;color:var(--ink-muted)}
.cta{border-radius:36px;padding:72px 32px 0;text-align:center;overflow:hidden}
.wl{display:flex;flex-wrap:wrap;gap:12px;max-width:520px;margin:32px auto 0}
.wl .lg-btn{flex:1 1 auto}
.wl-note{margin-top:12px;font-size:13px;line-height:18px;color:var(--ink-muted)}
.cast{display:flex;justify-content:center;align-items:flex-end;gap:4px;margin-top:48px}
.bob{animation:bob 5s ease-in-out infinite}
.bob2{animation:bob 6s 1.2s ease-in-out infinite}
footer{border-top:1px solid var(--line);padding:56px 0 40px}
.legal{margin-top:40px;padding-top:24px;border-top:1px solid var(--line);display:flex;flex-direction:column;gap:8px;font-size:13px;line-height:18px;color:var(--ink-subtle)}

/* Entrances and scroll reveal */
.in1,.in2,.in3,.in4{animation:up .8s cubic-bezier(.2,.7,.2,1) both}
.in2{animation-delay:.12s}.in3{animation-delay:.24s}.in4{animation-delay:.36s}
.js .rv{opacity:0;transform:translateY(40px);transition:opacity .8s cubic-bezier(.2,.7,.2,1),transform .8s cubic-bezier(.2,.7,.2,1)}
.js .rv.vis{opacity:1;transform:none}

@keyframes up{from{opacity:0;transform:translateY(24px)}to{opacity:1;transform:none}}
@keyframes wordIn{from{opacity:0;transform:translateY(60%);filter:blur(6px)}to{opacity:1;transform:none;filter:none}}
@keyframes msgIn{from{opacity:0;transform:translateY(14px) scale(.97)}to{opacity:1;transform:none}}
@keyframes ring{0%{box-shadow:0 0 0 0 rgba(133,51,255,.7)}100%{box-shadow:0 0 0 14px rgba(133,51,255,0)}}
@keyframes dot{0%,100%{opacity:1}50%{opacity:.25}}
@keyframes bob{0%,100%{transform:translateY(0)}50%{transform:translateY(-10px)}}
@keyframes eq{0%,100%{transform:scaleY(.25)}50%{transform:scaleY(1)}}
@keyframes marquee{from{transform:translateX(0)}to{transform:translateX(-50%)}}
@keyframes fadeSwap{from{opacity:0;transform:translateY(8px)}to{opacity:1;transform:none}}
@property --p{syntax:'<percentage>';inherits:false;initial-value:0%}
@keyframes sweep{from{--p:0%}to{--p:100%}}

@media (max-width:860px){.float{display:none}}
@media (max-width:720px){
  .nav-links,.hide-sm{display:none !important}
  .sec{padding:80px 0}
  .hero{padding:48px 0 64px}
  .cta{padding:56px 20px 0;border-radius:28px}
}
@media (prefers-reduced-motion:reduce){
  *,*::before,*::after{animation:none !important;transition:none !important}
  .js .rv{opacity:1;transform:none}
  .fill{transform:scaleX(1)}
  .float-fix{opacity:1;transform:none}
}

/* Legal pages */
.doc{max-width:760px;margin:0 auto;padding:64px 24px 96px}
.doc h1{font-size:40px;margin:0 0 24px}
.doc h2{font-size:22px;margin:36px 0 10px}
.doc p,.doc li{color:var(--ink-muted);line-height:26px}
.ph{color:var(--brand-text);font-weight:600}

/* Language switcher */
.langs{display:flex;gap:4px;align-items:center}
.langs a{font-size:13px;font-weight:700;color:var(--ink-muted);text-decoration:none;padding:6px 8px;border-radius:8px}
.langs a:hover{color:var(--ink);background:var(--surface)}
.langs a[aria-current="true"]{color:var(--ink);background:var(--surface)}