:root{
  --bg:#0d1117;--bg2:#131a24;--card:#18212e;--line:#263244;
  --text:#e8edf4;--muted:#9aa8ba;--accent:#f5c518;--accent2:#22c55e;--danger:#f87171;
  --radius:14px;--max:1080px;
  --font:system-ui,-apple-system,"Segoe UI",Roboto,"Noto Sans",Arial,sans-serif;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
body{margin:0;background:var(--bg);color:var(--text);font:16px/1.65 var(--font)}
a{color:var(--accent)}
a:hover{text-decoration:none}
img,svg{max-width:100%;height:auto}
.wrap{max-width:var(--max);margin:0 auto;padding:0 16px}

/* header */
.top{position:sticky;top:0;z-index:50;background:rgba(13,17,23,.94);backdrop-filter:blur(8px);border-bottom:1px solid var(--line)}
.top .wrap{display:flex;align-items:center;gap:16px;height:64px}
.logo{display:flex;align-items:center;gap:10px;color:var(--text);text-decoration:none;font-weight:800;letter-spacing:.2px;white-space:nowrap}
.logo span small{display:block;font-size:11px;font-weight:500;color:var(--muted);letter-spacing:0}
.nav{display:flex;gap:4px;margin-left:auto}
.nav a{color:var(--muted);text-decoration:none;padding:8px 10px;border-radius:8px;font-size:15px}
.nav a:hover,.nav a[aria-current=page]{color:var(--text);background:var(--card)}
.burger{display:none;margin-left:auto;background:none;border:1px solid var(--line);color:var(--text);border-radius:8px;width:42px;height:42px;font-size:20px;cursor:pointer}

/* buttons */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;border:0;cursor:pointer;font:700 16px/1 var(--font);
  padding:15px 26px;border-radius:12px;background:var(--accent);color:#111;text-decoration:none;transition:transform .15s,box-shadow .15s}
.btn:hover{transform:translateY(-1px);box-shadow:0 8px 24px rgba(245,197,24,.25)}
.btn.sm{padding:10px 16px;font-size:14px}
.btn.ghost{background:transparent;color:var(--text);border:1px solid var(--line)}
.top .btn{margin-left:8px}

/* hero */
.hero{padding:44px 0 28px;background:radial-gradient(900px 380px at 80% -10%,rgba(245,197,24,.12),transparent 60%),radial-gradient(700px 300px at 0% 0%,rgba(34,197,94,.08),transparent 60%)}
.hero-grid{display:grid;grid-template-columns:1.25fr .75fr;gap:32px;align-items:center}
h1{font-size:clamp(28px,4.4vw,44px);line-height:1.15;margin:8px 0 14px;letter-spacing:-.5px}
h2{font-size:clamp(22px,3vw,30px);line-height:1.25;margin:44px 0 12px;letter-spacing:-.3px}
h3{font-size:19px;margin:24px 0 8px}
.lead{font-size:18px;color:#cfd8e3;margin:0 0 20px}
.hero-cta{display:flex;flex-wrap:wrap;gap:12px;align-items:center}
.note{font-size:13px;color:var(--muted)}
.phone{background:linear-gradient(160deg,#1d2736,#121924);border:1px solid var(--line);border-radius:28px;padding:22px;max-width:300px;margin-left:auto}
.phone .scr{background:#0b0f15;border-radius:18px;padding:16px;display:grid;gap:10px}
.phone .row{display:flex;gap:10px;justify-content:space-between;align-items:center;background:var(--card);border-radius:10px;padding:10px 12px;font-size:14px}
.phone .row b{color:var(--accent)}
.phone .bar{height:8px;border-radius:6px;background:linear-gradient(90deg,var(--accent2),var(--accent))}

/* breadcrumbs + meta */
.crumbs{font-size:13px;color:var(--muted);margin:0;padding:0;list-style:none;display:flex;flex-wrap:wrap;gap:6px}
.crumbs li+li:before{content:"›";margin-right:6px;color:var(--line)}
.crumbs a{color:var(--muted)}
.byline{display:flex;flex-wrap:wrap;gap:6px 16px;font-size:13px;color:var(--muted);margin:0 0 18px}
.byline b{color:var(--text);font-weight:600}

/* layout */
.main{padding:8px 0 40px}
.content{max-width:800px}
.content p,.content li{color:#d6dee8}
.toc{background:var(--bg2);border:1px solid var(--line);border-radius:var(--radius);padding:16px 20px;margin:24px 0}
.toc b{display:block;margin-bottom:6px}
.toc ol{margin:0;padding-left:20px}
.toc a{color:var(--text);text-decoration:none}
.toc a:hover{color:var(--accent)}

/* cards */
.grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(220px,1fr));gap:14px;margin:18px 0}
.card{background:var(--card);border:1px solid var(--line);border-radius:var(--radius);padding:18px}
.card h3{margin:6px 0 6px;font-size:17px}
.card p{margin:0;font-size:15px;color:var(--muted)}
.card .ic{width:38px;height:38px;border-radius:10px;display:grid;place-items:center;background:rgba(245,197,24,.12);color:var(--accent);font-size:20px}
a.card{text-decoration:none;color:var(--text);transition:border-color .15s}
a.card:hover{border-color:var(--accent)}

/* facts table (triplets) */
.facts{width:100%;border-collapse:collapse;margin:16px 0;font-size:15px;background:var(--bg2);border-radius:var(--radius);overflow:hidden}
.facts caption{text-align:left;font-weight:700;padding:0 0 8px;color:var(--text)}
.facts th,.facts td{padding:11px 14px;border-bottom:1px solid var(--line);text-align:left;vertical-align:top}
.facts thead th{background:var(--card);color:var(--muted);font-weight:600;font-size:13px;text-transform:uppercase;letter-spacing:.4px}
.facts tr:last-child td{border-bottom:0}
.facts td:first-child{color:var(--text);font-weight:600}
.facts td:nth-child(2){color:var(--muted)}
.table-scroll{overflow-x:auto}

/* steps */
.steps{counter-reset:s;list-style:none;padding:0;margin:16px 0;display:grid;gap:10px}
.steps li{counter-increment:s;position:relative;background:var(--card);border:1px solid var(--line);border-radius:12px;padding:14px 16px 14px 58px}
.steps li:before{content:counter(s);position:absolute;left:14px;top:13px;width:30px;height:30px;border-radius:50%;background:var(--accent);color:#111;font-weight:800;display:grid;place-items:center;font-size:15px}
.steps li b{display:block;color:var(--text)}

/* callouts */
.callout{border-left:4px solid var(--accent);background:var(--bg2);border-radius:0 12px 12px 0;padding:14px 18px;margin:20px 0}
.callout.warn{border-color:var(--danger)}
.callout.ok{border-color:var(--accent2)}
.callout p{margin:6px 0}
.cta-box{margin:32px 0;padding:24px;border-radius:var(--radius);background:linear-gradient(120deg,#1f2a12,#2b2410);border:1px solid #3d3a1c;display:flex;flex-wrap:wrap;gap:16px;align-items:center;justify-content:space-between}
.cta-box p{margin:0;max-width:520px;color:#e7e2c8}
.cta-box strong{display:block;font-size:19px;color:var(--text);margin-bottom:4px}

/* faq */
.faq details{background:var(--card);border:1px solid var(--line);border-radius:12px;margin:10px 0;padding:0 16px}
.faq summary{cursor:pointer;padding:14px 0;font-weight:600;list-style:none;position:relative;padding-right:28px}
.faq summary::-webkit-details-marker{display:none}
.faq summary:after{content:"+";position:absolute;right:0;top:12px;font-size:20px;color:var(--accent)}
.faq details[open] summary:after{content:"–"}
.faq details p{margin:0 0 14px;color:var(--muted)}

/* author */
.author{display:flex;gap:16px;align-items:flex-start;background:var(--bg2);border:1px solid var(--line);border-radius:var(--radius);padding:18px;margin:36px 0 10px}
.avatar{flex:0 0 52px;height:52px;border-radius:50%;background:linear-gradient(135deg,var(--accent),var(--accent2));display:grid;place-items:center;color:#111;font-weight:800}
.author p{margin:4px 0 0;font-size:14px;color:var(--muted)}

/* footer */
.foot{border-top:1px solid var(--line);background:var(--bg2);padding:32px 0 90px;font-size:14px;color:var(--muted)}
.foot-grid{display:grid;grid-template-columns:2fr 1fr 1fr;gap:24px}
.foot h4{color:var(--text);margin:0 0 8px;font-size:15px}
.foot ul{list-style:none;padding:0;margin:0}
.foot li{margin:4px 0}
.foot a{color:var(--muted)}
.badge18{display:inline-grid;place-items:center;width:40px;height:40px;border-radius:50%;border:2px solid var(--danger);color:var(--danger);font-weight:800;margin-right:8px;vertical-align:middle}
.disclaimer{margin-top:20px;padding-top:16px;border-top:1px solid var(--line);font-size:13px}

/* sticky mobile cta */
.sticky-cta{position:fixed;left:0;right:0;bottom:0;z-index:60;padding:10px 16px calc(10px + env(safe-area-inset-bottom));background:rgba(13,17,23,.96);border-top:1px solid var(--line);display:none}
.sticky-cta .btn{width:100%}

/* age gate */
.gate{position:fixed;inset:0;z-index:100;background:rgba(5,8,12,.88);display:none;align-items:center;justify-content:center;padding:16px}
.gate.show{display:flex}
.gate-box{background:var(--card);border:1px solid var(--line);border-radius:18px;padding:26px;max-width:420px;text-align:center}
.gate-box h2{margin:8px 0}
.gate-box .row{display:flex;gap:10px;justify-content:center;margin-top:16px;flex-wrap:wrap}

@media (max-width:860px){
  .hero-grid{grid-template-columns:1fr}
  .phone{margin:0 auto;display:none}
  .foot-grid{grid-template-columns:1fr 1fr}
  .foot-grid>div:first-child{grid-column:1/-1}
}
@media (max-width:760px){
  .burger{display:block}
  .top .btn{display:none}
  .nav{display:none;position:absolute;top:64px;left:0;right:0;background:var(--bg);border-bottom:1px solid var(--line);flex-direction:column;padding:8px 16px 16px}
  .nav.open{display:flex}
  .nav a{padding:12px 10px}
  .sticky-cta{display:block}
  .cta-box{padding:18px}
  .cta-box .btn{width:100%}
}
@media (prefers-reduced-motion:reduce){*{transition:none!important;scroll-behavior:auto!important}}