*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}
:root{
  --bg:#07070c;--bg2:#0d0d16;--bg3:#141420;--card:#11111c;
  --fg:#e8e8f0;--fg2:#9090a8;--fg3:#606078;
  --accent:#a855f7;--accent2:#7c3aed;--green:#3ce096;--orange:#c084fc;--red:#fc5c7c;
  --border:#1e1e2e;--radius:10px;--shadow:0 0 0 1px rgba(168,85,247,0.04),0 16px 48px rgba(0,0,0,0.4);
  --mono:'JetBrains Mono','Fira Code',monospace;--sans:system-ui,-apple-system,sans-serif;
}
html{scroll-behavior:smooth}
body{background:var(--bg);color:var(--fg);font-family:var(--sans);line-height:1.6;overflow-x:hidden}
.container{max-width:1100px;margin:0 auto;padding:0 20px}

/* Nav */
nav{position:fixed;top:0;z-index:100;width:100%;background:rgba(7,7,12,0.85);backdrop-filter:blur(12px);border-bottom:1px solid var(--border);padding:12px 0;transition:all .3s}
nav .container{display:flex;justify-content:space-between;align-items:center}
nav .logo{font-weight:800;font-size:1.2rem;color:var(--accent);text-decoration:none;letter-spacing:-0.5px;display:flex;align-items:center}
nav .logo img{height:32px;margin-right:6px}
nav .logo span{color:var(--fg)}
nav .nav-links{display:flex;align-items:center;gap:18px}
nav a{color:var(--fg2);text-decoration:none;font-size:0.82rem;transition:color .2s}
nav a:hover{color:var(--fg)}
nav a.nav-social{display:inline-flex;align-items:center;padding:4px;border-radius:6px}
nav a.nav-social:hover{background:var(--bg3)}
nav a.nav-social svg{display:block}
.hamburger{display:none;background:none;border:none;color:var(--fg);font-size:1.4rem;cursor:pointer;padding:4px 8px}
.lang-switch{display:flex;background:var(--bg3);border:1px solid var(--border);border-radius:20px;overflow:hidden}
.lang-switch button{background:none;border:none;color:var(--fg2);padding:4px 10px;font-size:0.72rem;cursor:pointer;font-weight:600;transition:all .2s}
.lang-switch button.active{background:var(--accent);color:#fff}

/* Hero */
.hero{position:relative;padding:120px 0 50px;text-align:center;overflow:hidden}
.hero::before{content:'';position:absolute;top:-50%;left:-50%;width:200%;height:200%;background:radial-gradient(ellipse at 50% 0%,rgba(168,85,247,0.06) 0%,transparent 60%),radial-gradient(ellipse at 80% 50%,rgba(124,58,237,0.04) 0%,transparent 50%);animation:heroPulse 8s ease-in-out infinite;pointer-events:none}
@keyframes heroPulse{0%,100%{opacity:1}50%{opacity:0.6}}
.hero>*{position:relative;z-index:1}
.hero .badge{display:inline-flex;align-items:center;gap:6px;background:var(--bg3);border:1px solid var(--border);border-radius:20px;padding:5px 16px;font-size:0.78rem;color:var(--accent2);margin-bottom:20px}
.hero .badge strong{color:var(--accent);font-size:0.82rem}
.hero h1{font-size:clamp(2.2rem,5vw,3.5rem);font-weight:800;letter-spacing:-1.5px;line-height:1.15;margin-bottom:14px}
.hero h1 .grad{background:linear-gradient(135deg,var(--accent),var(--accent2));-webkit-background-clip:text;-webkit-text-fill-color:transparent}
.hero .sub{font-size:1rem;color:var(--fg2);max-width:580px;margin:0 auto 28px;line-height:1.6}
.hero .cta{display:inline-flex;gap:10px;flex-wrap:wrap;justify-content:center}
.cta-primary{background:var(--accent);color:#fff;padding:12px 28px;border-radius:var(--radius);font-weight:600;font-size:0.9rem;text-decoration:none;transition:all .2s;box-shadow:0 4px 20px rgba(124,92,252,0.3)}
.cta-primary:hover{background:#8e72fc;transform:translateY(-1px);box-shadow:0 8px 32px rgba(124,92,252,0.4)}
.cta-secondary{background:var(--bg3);color:var(--fg);padding:12px 28px;border-radius:var(--radius);font-weight:600;font-size:0.9rem;text-decoration:none;border:1px solid var(--border);transition:all .2s}
.cta-secondary:hover{border-color:var(--accent)}
.cta-download{background:var(--green);color:#04210f;padding:12px 28px;border-radius:var(--radius);font-weight:700;font-size:0.9rem;text-decoration:none;transition:all .2s;box-shadow:0 4px 20px rgba(60,224,150,0.22);display:inline-flex;align-items:center;gap:6px}
.cta-download:hover{transform:translateY(-1px);box-shadow:0 8px 32px rgba(60,224,150,0.35)}
.hero .version-note{font-size:0.72rem;color:var(--fg3);margin-top:12px}
pre.inline{background:var(--bg2);border:1px solid var(--border);border-radius:var(--radius);padding:14px 18px;overflow-x:auto;font-family:var(--mono);font-size:0.78rem;line-height:1.7;color:var(--fg);margin:10px 0 0;text-align:left}

/* Stats inline bar */
.stats-inline{display:flex;gap:32px;justify-content:center;flex-wrap:wrap;margin-bottom:20px}
.stats-inline .stat{text-align:center}
.stats-inline .stat-num{font-size:1.3rem;font-weight:700;background:linear-gradient(135deg,var(--accent),var(--accent2));-webkit-background-clip:text;-webkit-text-fill-color:transparent}
.stats-inline .stat-label{font-size:0.7rem;color:var(--fg3);text-transform:uppercase;letter-spacing:.5px}

/* Sections */
section{padding:70px 0}
.section-head{text-align:center;margin-bottom:48px}
.section-head h2{font-size:1.9rem;font-weight:700;letter-spacing:-0.5px;margin-bottom:8px}
.section-head h2 span{background:linear-gradient(135deg,var(--accent),var(--accent2));-webkit-background-clip:text;-webkit-text-fill-color:transparent}
.section-head p{color:var(--fg2);font-size:0.9rem;max-width:500px;margin:0 auto}

/* Staggered features */
.feature-row{display:grid;grid-template-columns:1fr 1fr;gap:48px;align-items:center;margin-bottom:64px}
.feature-row:last-child{margin-bottom:0}
.feature-row.reverse{direction:rtl}
.feature-row.reverse .feature-text,.feature-row.reverse .feature-code{direction:ltr}
.feature-text h3{font-size:1.3rem;font-weight:700;margin-bottom:10px}
.feature-text h3 span{background:linear-gradient(135deg,var(--accent),var(--accent2));-webkit-background-clip:text;-webkit-text-fill-color:transparent}
.feature-text p{color:var(--fg2);font-size:0.88rem;line-height:1.7;margin-bottom:12px}
.feature-code{background:var(--bg2);border:1px solid var(--border);border-radius:var(--radius);overflow:hidden;box-shadow:var(--shadow)}
.feature-code .bar{background:var(--bg3);padding:8px 14px;display:flex;gap:6px;border-bottom:1px solid var(--border)}
.feature-code .bar .dot{width:9px;height:9px;border-radius:50%}
.feature-code pre{padding:16px 18px;font-family:var(--mono);font-size:0.76rem;line-height:1.8;overflow-x:auto;color:var(--fg);white-space:pre}
.feature-code .kw{color:var(--accent)}.feature-code .fn{color:var(--accent2)}
.feature-code .str{color:var(--green)}.feature-code .pipe{color:var(--orange)}.feature-code .cmt{color:var(--fg3)}
.feature-code .num{color:var(--accent2)}.feature-code .op{color:var(--orange)}

/* Grid cards */
.grid-3{display:grid;grid-template-columns:repeat(auto-fit,minmax(240px,1fr));gap:14px}
.card{background:var(--card);border:1px solid var(--border);border-radius:var(--radius);padding:22px;transition:all .3s}
.card:hover{border-color:var(--accent);transform:translateY(-2px);box-shadow:0 8px 24px rgba(0,0,0,0.3)}
.card .icon{font-size:1.4rem;margin-bottom:10px}
.card h4{font-size:0.95rem;font-weight:700;margin-bottom:5px}
.card p{color:var(--fg2);font-size:0.8rem;line-height:1.6}

/* Builtins table */
.builtin-group{background:var(--card);border:1px solid var(--border);border-radius:var(--radius);padding:18px}
.builtin-group h4{font-size:0.85rem;font-weight:700;margin-bottom:10px;color:var(--accent2)}
.builtin-group table{width:100%;font-size:0.76rem;border-collapse:collapse}
.builtin-group td{padding:3px 0;border-bottom:1px solid rgba(255,255,255,0.03)}
.builtin-group td:first-child{font-family:var(--mono);color:var(--accent2);padding-right:8px}
.builtin-group td:last-child{color:var(--fg2)}

/* Builtins accordion (index page) */
.builtins-list{max-width:720px;margin:0 auto}
details.builtin-group{padding:0}
details.builtin-group summary{cursor:pointer;list-style:none;display:flex;justify-content:flex-start;align-items:center;gap:10px;padding:14px 18px;font-size:0.85rem;font-weight:700;color:var(--accent2);transition:color .2s}
details.builtin-group summary::-webkit-details-marker{display:none}
details.builtin-group summary::after{content:'+';margin-left:auto;font-family:var(--mono);color:var(--fg2);font-weight:400;font-size:1.05rem}
details.builtin-group[open] summary::after{content:'\2013'}
details.builtin-group summary:hover{color:var(--accent)}
details.builtin-group[open] summary{border-bottom:1px solid var(--border);margin-bottom:12px}
details.builtin-group .b-body{padding:0 18px 14px}
details.builtin-group .b-count{font-family:var(--mono);color:var(--fg2);font-size:0.72rem;font-weight:400}

/* Comparison table */
.compare-table{max-width:800px;margin:0 auto;overflow-x:auto}
.compare-table table{width:100%;border-collapse:collapse;font-size:0.82rem}
.compare-table th{text-align:left;padding:12px 16px;color:var(--fg2);font-weight:600;border-bottom:2px solid var(--border);font-size:0.72rem;text-transform:uppercase;letter-spacing:0.5px}
.compare-table td{padding:10px 16px;border-bottom:1px solid var(--border);color:var(--fg2)}
.compare-table td:first-child{color:var(--fg);font-weight:600}
.compare-table td:nth-child(2){color:var(--red);font-family:var(--mono);font-size:0.78rem}
.compare-table td:nth-child(3){color:var(--green);font-family:var(--mono);font-size:0.78rem}
.compare-table th:nth-child(2){color:var(--red)}.compare-table th:nth-child(3){color:var(--green)}

/* Playground */
.play-card{background:var(--bg);border:1px solid var(--border);border-radius:var(--radius);overflow:hidden;box-shadow:var(--shadow);max-width:900px;margin:0 auto}
.play-top{display:flex;justify-content:space-between;align-items:center;padding:8px 14px;background:var(--bg3);border-bottom:1px solid var(--border);flex-wrap:wrap;gap:6px}
.play-dot{display:inline-block;width:9px;height:9px;border-radius:50%;margin-right:4px}
.play-label{color:var(--fg2);font-size:0.68rem;margin-left:4px}
.play-run-btn{background:var(--accent);color:#fff;border:none;border-radius:6px;padding:6px 16px;font-weight:600;font-size:0.78rem;cursor:pointer;transition:all .15s}
.play-run-btn:hover:not(:disabled){background:#8e72fc}
.play-run-btn:disabled{opacity:0.4;cursor:not-allowed}
.play-run-btn.running{background:var(--orange);animation:pulse 1s infinite}
@keyframes pulse{0%,100%{opacity:1}50%{opacity:0.5}}
.play-editor{width:100%;min-height:130px;background:var(--bg);border:none;padding:14px 16px;font-family:var(--mono);font-size:0.84rem;resize:vertical;outline:none;white-space:pre-wrap;tab-size:4;line-height:1.6}
.play-editor:focus{background:#0a0a14}
.play-editor-wrap{display:grid;min-height:150px}
.play-editor-wrap>*{grid-area:1/1}
.play-editor-wrap textarea.play-editor{background:transparent;color:transparent;caret-color:#5ce0fc;z-index:2;resize:vertical;overflow:auto}
.play-editor-wrap pre.play-editor{color:var(--fg);z-index:1;overflow:hidden;pointer-events:none;user-select:none;margin:0}
.play-editor-wrap pre::-webkit-scrollbar{display:none}
.play-bar{display:flex;align-items:center;gap:8px;padding:6px 14px;background:var(--bg3);border-top:1px solid var(--border);border-bottom:1px solid var(--border);font-size:0.68rem;color:var(--fg2);font-family:var(--mono)}
.play-bar.success{color:var(--green)}.play-bar.error{color:var(--red)}
.spinner{display:inline-block;width:12px;height:12px;border:2px solid var(--border);border-top-color:var(--orange);border-radius:50%;animation:spin .6s linear infinite}
@keyframes spin{to{transform:rotate(360deg)}}
.play-output{padding:12px 16px;font-family:var(--mono);font-size:0.8rem;color:var(--green);min-height:36px;max-height:200px;overflow-y:auto;white-space:pre-wrap}
.play-output.error{color:var(--red)}
.play-graph-wrap{display:none;background:var(--bg);border-top:1px solid var(--border)}
.play-graph-wrap.show{display:block}
.play-graph{padding:18px 16px;min-height:80px;display:flex;align-items:center;justify-content:center;overflow:auto}
.play-graph svg{max-width:100%}
.play-graph-empty{color:var(--fg3);font-size:.74rem;font-family:var(--mono);text-align:center}
.play-graph-btn{background:transparent;color:var(--fg2);border:1px solid var(--border);border-radius:5px;padding:2px 8px;font-size:.65rem;cursor:pointer;transition:all .12s;font-family:var(--sans);white-space:nowrap}
.play-graph-btn:hover{color:var(--accent);border-color:var(--accent)}
.play-graph-btn.active{background:rgba(168,85,247,0.15);color:var(--accent);border-color:var(--accent)}

/* Footer */
footer{background:var(--bg2);border-top:1px solid var(--border);padding:50px 0 25px}
.footer-grid{display:grid;grid-template-columns:2fr 1fr 1fr 1fr;gap:32px}
.footer-col h5{font-size:0.78rem;text-transform:uppercase;letter-spacing:1px;color:var(--fg3);margin-bottom:14px}
.footer-col a{display:block;color:var(--fg2);text-decoration:none;font-size:0.8rem;margin-bottom:7px;transition:color .2s}
.footer-col a:hover{color:var(--fg)}
.footer-brand{font-weight:800;font-size:1.05rem;color:var(--accent);letter-spacing:-0.5px;margin-bottom:6px;display:block}
.footer-brand span{color:var(--fg)}
.footer-bottom{border-top:1px solid var(--border);margin-top:36px;padding-top:18px;text-align:center;color:var(--fg3);font-size:0.72rem}

/* Scroll reveal */
.reveal{opacity:0;transform:translateY(24px);transition:all .6s ease-out}
.reveal.visible{opacity:1;transform:translateY(0)}

/* Prism token colors */
.token.comment,.token.prolog,.token.doctype,.token.cdata{color:#666;font-style:italic}
.token.punctuation{color:#9898a8}
.token.boolean,.token.number,.token.constant,.token.symbol{color:#c084fc}
.token.string,.token.char,.token.builtin{color:#3ce096}
.token.operator,.token.entity,.token.url{color:#fc8c3c}
.token.keyword{color:#a78bfa;font-weight:600}
.token.function,.token.class-name{color:#5ce0fc}
.token.variable{color:#e0e0e8}

/* Animations */
@keyframes fadeUp{from{opacity:0;transform:translateY(20px)}to{opacity:1;transform:translateY(0)}}
.hero h1,.hero .sub,.hero .cta{animation:fadeUp .8s ease-out both}
.hero .sub{animation-delay:.1s}.hero .cta{animation-delay:.2s}

/* Terminal demo */
.term-demo{max-width:640px;margin:0 auto;text-align:left;background:#0b0b14;border:1px solid var(--border);border-radius:12px;overflow:hidden;box-shadow:0 20px 60px rgba(0,0,0,.5)}
.term-titlebar{display:flex;align-items:center;gap:8px;padding:10px 14px;background:rgba(255,255,255,.04);border-bottom:1px solid var(--border)}
.term-dot{width:10px;height:10px;border-radius:50%}
.term-title{font-size:.7rem;color:var(--fg3);font-family:var(--mono);margin-left:6px}
.term-body{padding:16px 18px;font-family:var(--mono);font-size:.8rem;line-height:1.7;min-height:230px;overflow-x:auto;white-space:pre}
.term-line{color:var(--fg2)}
.term-prompt{color:#3ce096;font-weight:700}
.term-cmt{color:#666;font-style:italic}
.term-arrow{color:#a78bfa}
.term-ok{color:#3ce096}
.term-cursor{display:inline-block;width:7px;height:14px;background:#3ce096;vertical-align:middle;animation:blink 1s steps(1) infinite;margin-left:2px}
@keyframes blink{50%{opacity:0}}
.term-cap{margin-top:12px;font-size:.75rem;color:var(--fg3)}
.term-cap a{color:var(--accent);text-decoration:none}
.term-cap a:hover{text-decoration:underline}
@media(max-width:768px){
  .term-body{font-size:.68rem;padding:12px 14px;min-height:200px}
  .term-demo{margin-top:24px}
}

/* Lang */
[data-lang]{display:none}[data-lang].active{display:inline}
span[data-lang].active,p[data-lang].active,h1[data-lang].active,h2[data-lang].active,h3[data-lang].active,h4[data-lang].active,a[data-lang].active,th[data-lang].active,td[data-lang].active,li[data-lang].active,div[data-lang].active{display:block}
span[data-lang].active{display:inline}a[data-lang].active{display:inline-block}

@media(max-width:768px){
  .hero{padding:100px 0 40px}.hero h1{font-size:1.7rem}
  .play-editor{font-size:0.74rem;min-height:100px}
  .play-editor-wrap textarea.play-editor,.play-editor-wrap pre.play-editor{padding:12px 14px}
  .play-top{padding:8px 12px;gap:4px}
  .play-run-btn{font-size:.72rem;padding:5px 12px}
  .play-graph-btn{font-size:.6rem}
  .feature-row{grid-template-columns:1fr;gap:20px}.feature-row.reverse{direction:ltr}
  .code-compare{grid-template-columns:1fr}.code-compare .divider{display:none}
  .footer-grid{grid-template-columns:1fr 1fr;gap:24px}
  section{padding:50px 0}
  .hamburger{display:block}
  nav .nav-links{display:none;position:absolute;top:100%;left:0;right:0;background:rgba(7,7,12,0.98);border-bottom:1px solid var(--border);flex-direction:column;padding:16px 20px;gap:12px;backdrop-filter:blur(12px)}
  nav .nav-links.open{display:flex}
  nav a{font-size:0.9rem;padding:8px 0}
}
@media(max-width:480px){
  nav .logo img{height:24px}.nav .logo{font-size:1rem}
  .stats-inline{gap:16px}
  .container{padding:0 12px}
  .play-card{border-radius:8px}
  .play-editor{font-size:.68rem;min-height:90px}
  .play-editor-wrap textarea.play-editor,.play-editor-wrap pre.play-editor{padding:10px 12px;font-size:.68rem;line-height:1.5}
  .play-top{gap:3px;padding:6px 10px}
  .play-top .play-label{font-size:.6rem}
  .play-run-btn{font-size:.68rem;padding:4px 10px}
  .play-bar{font-size:.6rem;padding:5px 8px}
  .play-output{font-size:.7rem;padding:10px 12px}
  .play-graph{padding:12px 8px;min-height:60px}
  .play-graph-btn{font-size:.58rem;padding:2px 6px}
}
@media(max-width:380px){
  .play-editor{font-size:.64rem;min-height:80px}
  .play-editor-wrap textarea.play-editor,.play-editor-wrap pre.play-editor{padding:8px 10px;font-size:.62rem}
  .play-run-btn{font-size:.62rem;padding:3px 8px}
  .play-graph-btn{font-size:.54rem;padding:1px 5px}
  .play-graph-empty{font-size:.62rem}
}