:root{
  --ink:#0a0f1f;
  --ink-2:#111833;
  --ink-3:#18214a;
  --line:#26305e;
  --text:#e7ebf8;
  --muted:#9aa5c8;
  --amber:#ffb81c;
  --amber-d:#e39a00;
  --cyan:#27e0c8;
  --rose:#ff5d7a;
  --radius:16px;
  --shadow:0 18px 50px rgba(0,0,0,.45);
  --font:"Segoe UI",system-ui,-apple-system,"Helvetica Neue",Arial,sans-serif;
  --mono:ui-monospace,SFMono-Regular,Consolas,"Liberation Mono",monospace;
}
*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth;scroll-padding-top:84px}
body{margin:0;background:var(--ink);color:var(--text);font-family:var(--font);font-size:17px;line-height:1.75;-webkit-font-smoothing:antialiased;
  background-image:radial-gradient(900px 500px at 85% -10%,rgba(39,224,200,.12),transparent 60%),radial-gradient(800px 500px at -10% 10%,rgba(255,184,28,.10),transparent 60%)}
img,svg{max-width:100%;display:block}
a{color:var(--cyan);text-decoration-thickness:1px;text-underline-offset:3px}
a:hover{color:var(--amber)}
:focus-visible{outline:3px solid var(--amber);outline-offset:3px;border-radius:6px}
.skip{position:absolute;left:-999px;top:8px;background:var(--amber);color:#111;padding:8px 14px;border-radius:8px;z-index:100;font-weight:700}
.skip:focus{left:8px}
.wrap{width:min(1180px,92%);margin-inline:auto}

/* header */
.site-header{position:sticky;top:0;z-index:50;background:rgba(10,15,31,.86);backdrop-filter:blur(12px);border-bottom:1px solid var(--line)}
.site-header .wrap{display:flex;align-items:center;justify-content:space-between;gap:18px;min-height:68px}
.brand{display:flex;align-items:center;gap:10px;color:var(--text);text-decoration:none;font-weight:800;font-size:1.3rem;letter-spacing:.2px}
.brand:hover{color:var(--text)}
.brand-mark{width:36px;height:36px;border-radius:10px;background:linear-gradient(135deg,var(--amber),var(--rose));display:grid;place-items:center;box-shadow:0 6px 18px rgba(255,184,28,.35)}
.brand-mark svg{width:20px;height:20px}
.brand b{color:var(--amber)}
.nav{display:flex;gap:6px;align-items:center;flex-wrap:wrap}
.nav a{color:var(--muted);text-decoration:none;padding:8px 12px;border-radius:10px;font-size:.95rem;font-weight:600}
.nav a:hover,.nav a[aria-current="page"]{color:var(--text);background:var(--ink-3)}
.btn{display:inline-flex;align-items:center;gap:8px;background:linear-gradient(135deg,var(--amber),var(--amber-d));color:#1a1200!important;font-weight:800;text-decoration:none;padding:13px 24px;border-radius:12px;border:0;box-shadow:0 10px 28px rgba(255,184,28,.28);transition:transform .15s,box-shadow .15s}
.btn:hover{transform:translateY(-2px);box-shadow:0 14px 34px rgba(255,184,28,.4)}
.btn.ghost{background:transparent;color:var(--text)!important;border:1px solid var(--line);box-shadow:none}
.btn.ghost:hover{border-color:var(--cyan);color:var(--cyan)!important}
.btn.sm{padding:9px 16px;font-size:.92rem}

/* hero */
.hero{padding:64px 0 48px}
.hero .wrap{display:grid;grid-template-columns:1.25fr .85fr;gap:44px;align-items:center}
.crumbs{font-size:.88rem;color:var(--muted);margin:0 0 18px}
.crumbs a{color:var(--muted)}
.crumbs span{margin:0 6px;opacity:.6}
.eyebrow{display:inline-flex;gap:8px;align-items:center;font-family:var(--mono);font-size:.8rem;letter-spacing:.08em;text-transform:uppercase;color:var(--cyan);background:rgba(39,224,200,.08);border:1px solid rgba(39,224,200,.3);padding:6px 12px;border-radius:999px;margin-bottom:18px}
.eyebrow i{width:8px;height:8px;border-radius:50%;background:var(--cyan);box-shadow:0 0 0 0 rgba(39,224,200,.7);animation:pulse 2s infinite}
@keyframes pulse{70%{box-shadow:0 0 0 10px rgba(39,224,200,0)}100%{box-shadow:0 0 0 0 rgba(39,224,200,0)}}
h1{font-size:clamp(2rem,4.4vw,3.3rem);line-height:1.12;margin:0 0 18px;letter-spacing:-.02em}
h1 em{font-style:normal;background:linear-gradient(90deg,var(--amber),var(--rose));-webkit-background-clip:text;background-clip:text;color:transparent}
.lead{font-size:1.14rem;color:#c9d1ee;margin:0 0 26px;max-width:62ch}
.cta-row{display:flex;gap:14px;flex-wrap:wrap}
.meta-line{display:flex;gap:18px;flex-wrap:wrap;margin-top:26px;font-size:.88rem;color:var(--muted)}
.meta-line b{color:var(--text)}

.ticket{position:relative;background:linear-gradient(180deg,var(--ink-3),var(--ink-2));border:1px solid var(--line);border-radius:22px;padding:26px;box-shadow:var(--shadow)}
.ticket::before,.ticket::after{content:"";position:absolute;top:58%;width:26px;height:26px;border-radius:50%;background:var(--ink);border:1px solid var(--line)}
.ticket::before{left:-14px}.ticket::after{right:-14px}
.ticket h2{font-size:1rem;margin:0 0 14px;font-family:var(--mono);letter-spacing:.06em;text-transform:uppercase;color:var(--amber)}
.ticket dl{margin:0;display:grid;gap:12px}
.ticket dl div{display:flex;justify-content:space-between;gap:16px;border-bottom:1px dashed var(--line);padding-bottom:10px;font-size:.95rem}
.ticket dt{color:var(--muted)}
.ticket dd{margin:0;font-weight:700;text-align:right}
.ticket .stamp{margin-top:20px;font-size:.84rem;color:var(--muted);border-top:2px dashed var(--line);padding-top:16px}

/* layout */
.layout{display:grid;grid-template-columns:270px minmax(0,1fr);gap:48px;padding:24px 0 70px;align-items:start}
.toc{position:sticky;top:90px;background:var(--ink-2);border:1px solid var(--line);border-radius:var(--radius);padding:20px}
.toc h2{font-size:.82rem;font-family:var(--mono);letter-spacing:.1em;text-transform:uppercase;color:var(--muted);margin:0 0 12px}
.toc ol{list-style:none;margin:0;padding:0;counter-reset:t}
.toc li{counter-increment:t}
.toc a{display:flex;gap:10px;color:var(--text);text-decoration:none;padding:7px 8px;border-radius:8px;font-size:.92rem;line-height:1.4}
.toc a::before{content:counter(t,decimal-leading-zero);color:var(--amber);font-family:var(--mono);font-size:.8rem;padding-top:2px}
.toc a:hover{background:var(--ink-3)}

article{counter-reset:sec}
article section{position:relative;margin-bottom:54px;padding-left:0}
article h2{counter-increment:sec;font-size:clamp(1.5rem,2.6vw,2rem);line-height:1.25;margin:0 0 18px;letter-spacing:-.01em;display:flex;gap:16px;align-items:baseline}
article h2::before{content:counter(sec,decimal-leading-zero);font-family:var(--mono);font-size:1rem;color:var(--ink);background:var(--amber);padding:3px 9px;border-radius:8px;flex:none;transform:translateY(-3px)}
article h3{font-size:1.2rem;margin:28px 0 10px;color:#fff}
article p{margin:0 0 16px}
article ul,article ol.plain{padding-left:22px;margin:0 0 18px}
article li{margin-bottom:8px}
article strong{color:#fff}

.callout{border-left:4px solid var(--cyan);background:rgba(39,224,200,.07);padding:16px 20px;border-radius:0 12px 12px 0;margin:22px 0}
.callout.warn{border-color:var(--rose);background:rgba(255,93,122,.08)}
.callout.gold{border-color:var(--amber);background:rgba(255,184,28,.08)}
.callout p:last-child{margin:0}
.callout .t{display:block;font-weight:800;margin-bottom:4px;color:#fff}

.steps{list-style:none;margin:24px 0;padding:0;position:relative;counter-reset:st}
.steps::before{content:"";position:absolute;left:19px;top:6px;bottom:6px;width:2px;background:linear-gradient(var(--amber),var(--cyan))}
.steps li{position:relative;padding:0 0 22px 60px;counter-increment:st;margin:0}
.steps li::before{content:counter(st);position:absolute;left:0;top:0;width:40px;height:40px;border-radius:50%;background:var(--ink-3);border:2px solid var(--amber);display:grid;place-items:center;font-weight:800;color:var(--amber)}
.steps h3{margin:0 0 4px;font-size:1.08rem}
.steps p{margin:0;color:#c3cbea}

.grid{display:grid;gap:16px;grid-template-columns:repeat(auto-fit,minmax(230px,1fr));margin:22px 0}
.card{background:var(--ink-2);border:1px solid var(--line);border-radius:var(--radius);padding:20px;transition:border-color .2s,transform .2s}
.card:hover{border-color:var(--amber);transform:translateY(-3px)}
.card .ic{width:42px;height:42px;border-radius:12px;display:grid;place-items:center;background:var(--ink-3);margin-bottom:12px;font-size:1.25rem}
.card h3{margin:0 0 6px!important;font-size:1.05rem!important}
.card p{margin:0;font-size:.95rem;color:#bcc5e6}
.card.bad{border-color:rgba(255,93,122,.4)}
.card.good{border-color:rgba(39,224,200,.4)}

.tbl{overflow-x:auto;border:1px solid var(--line);border-radius:var(--radius);margin:22px 0}
table{width:100%;border-collapse:collapse;min-width:620px;font-size:.96rem}
th,td{padding:13px 16px;text-align:left;vertical-align:top;border-bottom:1px solid var(--line)}
th{background:var(--ink-3);color:var(--amber);font-size:.8rem;text-transform:uppercase;letter-spacing:.08em;font-family:var(--mono)}
tr:last-child td{border-bottom:0}
tbody tr:hover{background:rgba(255,255,255,.03)}

.faq details{background:var(--ink-2);border:1px solid var(--line);border-radius:14px;margin-bottom:12px;overflow:hidden}
.faq summary{cursor:pointer;padding:16px 52px 16px 20px;font-weight:700;list-style:none;position:relative}
.faq summary::-webkit-details-marker{display:none}
.faq summary::after{content:"+";position:absolute;right:20px;top:50%;transform:translateY(-50%);font-size:1.5rem;color:var(--amber);transition:transform .2s}
.faq details[open] summary::after{transform:translateY(-50%) rotate(45deg)}
.faq details[open]{border-color:var(--amber)}
.faq .a{padding:0 20px 18px;color:#c9d1ee}
.faq .a p{margin:0}

.author{display:flex;gap:18px;align-items:flex-start;background:var(--ink-2);border:1px solid var(--line);border-radius:var(--radius);padding:22px;margin-top:20px}
.author .av{width:56px;height:56px;border-radius:16px;background:linear-gradient(135deg,var(--cyan),var(--amber));display:grid;place-items:center;font-weight:900;color:#0a0f1f;flex:none;font-size:1.2rem}
.author p{margin:0 0 6px;font-size:.95rem;color:#c3cbea}
.author b{color:#fff}

.final{background:linear-gradient(135deg,var(--ink-3),var(--ink-2));border:1px solid var(--amber);border-radius:22px;padding:34px;text-align:center;margin-top:10px}
.final h2{display:block!important;margin-bottom:10px!important}
.final h2::before{display:none!important}
.final p{max-width:60ch;margin-inline:auto}

/* sub pages */
.page-hero{padding:54px 0 20px}
.page{max-width:820px;margin:0 auto;padding:10px 0 80px}
.page h2{font-size:1.5rem;margin:38px 0 12px;color:#fff;padding-bottom:8px;border-bottom:1px solid var(--line)}
.page h3{margin:22px 0 8px;font-size:1.1rem}
.page p,.page li{color:#cfd6f0}
.page ul{padding-left:22px}
.contact-grid{display:grid;gap:16px;grid-template-columns:repeat(auto-fit,minmax(240px,1fr));margin:22px 0}

/* footer */
.site-footer{border-top:1px solid var(--line);background:#070b17;padding:44px 0 28px;font-size:.93rem;color:var(--muted)}
.foot-grid{display:grid;gap:34px;grid-template-columns:1.4fr 1fr 1fr}
.site-footer h2{font-size:.85rem;font-family:var(--mono);letter-spacing:.1em;text-transform:uppercase;color:var(--text);margin:0 0 12px}
.site-footer ul{list-style:none;margin:0;padding:0}
.site-footer li{margin-bottom:8px}
.site-footer a{color:var(--muted);text-decoration:none}
.site-footer a:hover{color:var(--amber)}
.age{display:inline-grid;place-items:center;width:42px;height:42px;border-radius:50%;border:2px solid var(--rose);color:var(--rose);font-weight:900;margin-right:10px;vertical-align:middle}
.disclaimer{margin-top:30px;padding-top:20px;border-top:1px solid var(--line);font-size:.85rem;line-height:1.6}

@media (max-width:980px){
  .hero .wrap{grid-template-columns:1fr}
  .layout{grid-template-columns:1fr;gap:24px}
  .toc{position:static}
  .foot-grid{grid-template-columns:1fr}
}
@media (max-width:640px){
  body{font-size:16px}
  .nav a:not(.btn){display:none}
  .hero{padding-top:36px}
  article h2{flex-direction:column;gap:8px}
  .author{flex-direction:column}
}
@media (prefers-reduced-motion:reduce){
  *{animation:none!important;transition:none!important;scroll-behavior:auto!important}
}