:root{--bg:#0c0820;--bg-deep:#1a0a2e;--bg-card:rgba(255,255,255,.03);--border:rgba(255,0,110,.25);--border-soft:rgba(255,255,255,.08);--text:#f3eefb;--text-dim:#a89bc1;--pink:#ff006e;--cyan:#00f5ff;--yellow:#ffe066;--max:1200px}
*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body{background:var(--bg);color:var(--text);font-family:-apple-system,BlinkMacSystemFont,'Segoe UI',Roboto,'Helvetica Neue',Arial,sans-serif;font-size:17px;line-height:1.6;-webkit-font-smoothing:antialiased;background-image:radial-gradient(circle at 15% 10%,rgba(255,0,110,.15),transparent 40%),radial-gradient(circle at 85% 80%,rgba(0,245,255,.12),transparent 40%),linear-gradient(180deg,#0c0820,#1a0a2e);min-height:100vh}
a{color:var(--cyan);text-decoration:none;transition:color .15s}
a:hover{color:var(--pink)}
.container{max-width:var(--max);margin:0 auto;padding:0 22px}
.mono{font-family:ui-monospace,Menlo,Monaco,Consolas,'Courier New',monospace}
.site-header{background:rgba(12,8,32,.85);backdrop-filter:blur(16px);border-bottom:1px solid var(--border-soft);padding:14px 0;position:sticky;top:0;z-index:50}
.site-header .container{display:flex;align-items:center;justify-content:space-between;gap:18px;flex-wrap:wrap}
.brand{display:flex;align-items:center;gap:10px;color:var(--text);min-width:0}
.brand .ast{color:var(--pink);text-shadow:0 0 8px rgba(255,0,110,.8),0 0 16px rgba(255,0,110,.4);font-size:24px;line-height:1;flex-shrink:0}
.brand .kw{font-weight:600;font-size:15px;letter-spacing:-.005em;color:var(--text);text-shadow:0 0 14px rgba(255,0,110,.25)}
nav.primary{display:flex;gap:4px;font-family:ui-monospace,Menlo,Monaco,Consolas,monospace;font-size:12px;flex-wrap:wrap}
nav.primary a{padding:7px 11px;border-radius:8px;color:var(--cyan);transition:all .15s}
nav.primary a:hover{color:var(--pink);background:rgba(255,255,255,.04)}
.hero{padding:90px 0 50px;position:relative}
.hero .tag{font-family:ui-monospace,Menlo,monospace;font-size:12px;color:var(--cyan);letter-spacing:.2em;text-transform:uppercase;margin-bottom:24px}
.hero .tag::before{content:"// ";color:var(--text-dim)}
.hero h1{font-size:clamp(40px,6.5vw,76px);line-height:1.02;letter-spacing:-.03em;font-weight:700;max-width:1080px;margin-bottom:28px}
.hero h1 .neon-pink{color:var(--pink);text-shadow:0 0 24px rgba(255,0,110,.5)}
.hero h1 .neon-cyan{color:var(--cyan);text-shadow:0 0 24px rgba(0,245,255,.4)}
.hero h1 .underline{position:relative;display:inline-block}
.hero h1 .underline::after{content:"";position:absolute;left:0;right:0;bottom:-6px;height:4px;background:linear-gradient(90deg,var(--pink),var(--cyan));border-radius:2px}
.hero .lede{font-size:20px;line-height:1.55;max-width:800px;color:var(--text-dim);margin-bottom:36px}
.tag-cloud{display:flex;flex-wrap:wrap;gap:9px;margin:36px 0 0}
.tag-pill{padding:7px 14px;border-radius:999px;border:1px solid var(--border);color:var(--text);font-family:ui-monospace,Menlo,monospace;font-size:12.5px;background:rgba(255,0,110,.05)}
.tag-pill.cyan{border-color:rgba(0,245,255,.3);background:rgba(0,245,255,.05)}
.tag-pill.yellow{border-color:rgba(255,224,102,.3);background:rgba(255,224,102,.05);color:var(--yellow)}
section{padding:70px 0;position:relative}
.section-head{max-width:760px;margin-bottom:50px}
.section-head .num{font-family:ui-monospace,Menlo,monospace;font-size:13px;color:var(--pink);letter-spacing:.2em;margin-bottom:14px}
.section-head .num::before{content:"[ "}
.section-head .num::after{content:" ]"}
.section-head h2{font-size:clamp(32px,4.8vw,52px);line-height:1.05;letter-spacing:-.02em;font-weight:700;margin-bottom:14px}
.section-head p{font-size:17.5px;color:var(--text-dim);line-height:1.55}
.faq-grid{display:grid;gap:14px;max-width:980px}
.faq-item{border:1px solid var(--border-soft);border-radius:14px;background:var(--bg-card);overflow:hidden;transition:border-color .25s,box-shadow .25s}
.faq-item[open]{border-color:var(--pink);box-shadow:0 0 0 1px rgba(255,0,110,.2),0 0 32px rgba(255,0,110,.08)}
.faq-item summary{cursor:pointer;padding:22px 26px;display:flex;align-items:flex-start;gap:16px;font-size:18px;font-weight:500;line-height:1.35;list-style:none}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary .q-num{font-family:ui-monospace,Menlo,monospace;font-size:13px;color:var(--cyan);flex-shrink:0;padding-top:4px;min-width:34px}
.faq-item summary .q-arrow{margin-left:auto;flex-shrink:0;color:var(--pink);font-size:20px;transition:transform .3s;padding-top:2px}
.faq-item[open] summary .q-arrow{transform:rotate(45deg)}
.faq-item .answer{padding:0 26px 26px 76px;font-size:16px;line-height:1.7;color:var(--text-dim)}
.faq-item .answer p{margin-bottom:13px}
.faq-item .answer p:last-child{margin-bottom:0}
.faq-item .answer strong{color:var(--text);font-weight:600}
.faq-item .answer em{color:var(--cyan);font-style:normal}
.faq-item .answer code{font-family:ui-monospace,Menlo,monospace;font-size:14px;padding:2px 8px;background:rgba(255,0,110,.12);color:var(--pink);border-radius:4px}
.glossary{border-top:1px solid var(--border-soft);background:rgba(0,0,0,.15)}
.glossary .grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(250px,1fr));gap:16px}
.glossary-item{padding:20px 22px;border:1px solid var(--border-soft);border-radius:12px;background:var(--bg-card)}
.glossary-item dt{font-family:ui-monospace,Menlo,monospace;font-size:13px;color:var(--cyan);letter-spacing:.04em;margin-bottom:9px}
.glossary-item dt::before{content:"→ ";color:var(--pink)}
.glossary-item dd{font-size:14.5px;color:var(--text-dim);line-height:1.6}
.shout{margin:54px 0;padding:46px 38px;border:2px dashed var(--pink);border-radius:20px;text-align:center;background:linear-gradient(135deg,rgba(255,0,110,.06),rgba(0,245,255,.04))}
.shout p{font-size:clamp(22px,2.8vw,32px);line-height:1.25;font-weight:500;max-width:780px;margin:0 auto}
.shout .source{display:block;margin-top:16px;font-family:ui-monospace,Menlo,monospace;font-size:12px;color:var(--text-dim);letter-spacing:.15em;text-transform:uppercase}
.site-footer{border-top:1px solid var(--border-soft);padding:54px 0 36px;background:rgba(0,0,0,.2)}
.site-footer .grid{display:grid;grid-template-columns:2fr 1fr 1fr;gap:44px;margin-bottom:32px}
.site-footer h5{font-family:ui-monospace,Menlo,monospace;font-size:11px;letter-spacing:.18em;text-transform:uppercase;color:var(--pink);margin-bottom:13px}
.site-footer p,.site-footer li{font-size:13.5px;line-height:1.65;color:var(--text-dim)}
.site-footer ul{list-style:none}
.site-footer ul li{margin-bottom:6px}
.site-footer a{color:var(--cyan)}
.site-footer a:hover{color:var(--pink)}
.site-footer .disclaimer{border-top:1px solid var(--border-soft);padding-top:20px;font-size:12px;color:rgba(168,155,193,.65);line-height:1.6}
.age-badge{display:inline-block;border:1px solid var(--pink);color:var(--pink);padding:3px 9px;font-size:11px;letter-spacing:.18em;font-weight:700;margin-right:10px;vertical-align:middle;text-shadow:0 0 8px rgba(255,0,110,.4)}
@media(max-width:900px){
  .container{padding:0 18px}
  .hero{padding:60px 0 36px}
  .hero h1{font-size:clamp(34px,7vw,52px);line-height:1.05}
  .hero .lede{font-size:17px}
  section{padding:54px 0}
  .section-head{margin-bottom:36px}
  .section-head h2{font-size:clamp(28px,5.5vw,38px)}
  .section-head p{font-size:16px}
  .glossary .grid{grid-template-columns:1fr;gap:12px}
  .glossary-item{padding:18px 20px}
  .faq-item summary{padding:18px 20px;font-size:16px;gap:12px}
  .faq-item .answer{padding:0 20px 22px 56px;font-size:15px}
  .shout{padding:34px 24px;margin:44px 0}
  .shout p{font-size:clamp(20px,4vw,24px)}
  .site-footer{padding:42px 0 26px}
  .site-footer .grid{grid-template-columns:1fr;gap:24px}
  .brand .kw{font-size:13.5px}
  .brand .ast{font-size:22px}
  nav.primary{gap:3px;width:100%}
  nav.primary a{padding:6px 9px;font-size:11.5px}
  .tag-cloud{gap:7px}
  .tag-pill{padding:6px 11px;font-size:11.5px}
}
@media(max-width:540px){
  .container{padding:0 14px}
  .hero{padding:42px 0 28px}
  .hero h1{font-size:clamp(28px,8.5vw,36px);line-height:1.08}
  .hero .lede{font-size:15.5px}
  .section-head h2{font-size:clamp(24px,7vw,30px)}
  section{padding:44px 0}
  .faq-item summary{font-size:15px;padding:16px 18px}
  .faq-item .answer{padding:0 18px 20px 18px;font-size:14.5px}
  .faq-item summary .q-num{min-width:auto;padding-top:0}
  .shout{padding:28px 18px}
  .shout p{font-size:18px}
  .brand{gap:8px}
  .brand .kw{font-size:12.5px}
  .brand .ast{font-size:20px}
  nav.primary a{padding:5px 8px;font-size:11px}
  .glossary-item{padding:16px 18px}
  .glossary-item dd{font-size:14px}
  .site-footer{padding:34px 0 22px}
}