:root{--bg:#080b12;--ink:#f1f5f9;--mute:#94a3b8;--dim:#64748b;--line:rgba(255,255,255,.08);--grad:linear-gradient(120deg,#60a5fa,#818cf8 30%,#a78bfa 55%,#ec4899)}
*{box-sizing:border-box;margin:0;padding:0}
html{-webkit-text-size-adjust:100%}
html,body{overflow-x:clip}
body{background:var(--bg);color:var(--ink);font-family:Inter,system-ui,-apple-system,sans-serif;line-height:1.7;-webkit-font-smoothing:antialiased}
body::before{content:"";position:fixed;inset:-20% -10% auto -10%;height:70vh;background:radial-gradient(ellipse at 30% 0%,rgba(99,102,241,.28),transparent 60%),radial-gradient(ellipse at 85% 10%,rgba(236,72,153,.16),transparent 55%);z-index:-1;pointer-events:none}
a{color:#a5b4fc}
.top{position:sticky;top:0;z-index:5;background:rgba(8,11,18,.82);backdrop-filter:blur(14px);-webkit-backdrop-filter:blur(14px);border-bottom:1px solid var(--line)}
.top-in{max-width:1080px;margin:0 auto;padding:12px 20px;display:flex;align-items:center;justify-content:space-between;gap:16px}
.logo{display:flex;align-items:center;gap:10px;color:var(--ink);text-decoration:none}
.logo-mark{width:36px;height:36px;border-radius:11px;display:grid;place-items:center;color:#fff;background:linear-gradient(135deg,#4f7cf7,#9b5cf6 50%,#ec4899)}
.logo-mark svg{width:24px;height:24px}
.wm{font-size:20px;font-weight:800;letter-spacing:-.045em}.wm span{font-weight:500;opacity:.7}
.ai-tag{font-size:10px;font-weight:800;letter-spacing:.1em;padding:3px 6px 2px;border-radius:6px;background:linear-gradient(135deg,rgba(99,102,241,.22),rgba(236,72,153,.18));border:1px solid rgba(167,139,250,.4);color:#e0e7ff}
.btn{display:inline-flex;align-items:center;gap:8px;padding:10px 18px;border-radius:999px;font-weight:700;font-size:14px;color:#fff;text-decoration:none;background:linear-gradient(120deg,#6366f1,#8b5cf6 50%,#ec4899);box-shadow:0 10px 40px -10px rgba(139,92,246,.75);white-space:nowrap}
main{max-width:760px;margin:0 auto;padding:44px 20px 40px}
.crumbs{font-size:13px;color:var(--dim);margin-bottom:22px}.crumbs a{color:var(--mute);text-decoration:none}
h1{font-size:clamp(34px,5.4vw,52px);line-height:1.08;letter-spacing:-.035em;font-weight:800;margin-bottom:16px}
.meta{font-size:13px;color:var(--dim);margin-bottom:30px}
.answer{font-size:19px;color:#e2e8f0;padding:22px 24px;border-radius:18px;border:1px solid rgba(129,140,248,.3);background:linear-gradient(135deg,rgba(99,102,241,.12),rgba(236,72,153,.06));margin-bottom:34px}
h2{font-size:clamp(24px,3vw,30px);line-height:1.2;letter-spacing:-.025em;margin:42px 0 14px}
h3{font-size:19px;margin:26px 0 8px}
p,li{color:#cbd5e1;font-size:17px}
p{margin-bottom:16px}
ul,ol{margin:0 0 18px 22px}li{margin-bottom:8px}
strong{color:var(--ink)}
table{width:100%;border-collapse:collapse;margin:10px 0 24px;font-size:15px}
th,td{text-align:left;padding:12px 10px;border-bottom:1px solid var(--line);vertical-align:top}
th{color:var(--dim);font-size:12.5px;letter-spacing:.06em;text-transform:uppercase}
td:first-child{font-weight:700;color:var(--ink);white-space:nowrap}
.cta{margin:46px 0 10px;padding:30px;border-radius:22px;border:1px solid rgba(255,255,255,.1);background:radial-gradient(ellipse at 50% 130%,rgba(139,92,246,.4),transparent 60%),rgba(255,255,255,.03);text-align:center}
.cta h2{margin:0 0 8px}.cta p{margin-bottom:18px}
.faq details{border-bottom:1px solid var(--line)}
.faq summary{cursor:pointer;padding:16px 0;font-weight:600;font-size:17px;list-style:none}
.faq summary::-webkit-details-marker{display:none}
.faq summary::before{content:"+";display:inline-block;width:22px;color:#a5b4fc}
.faq details[open] summary::before{content:"–"}
.faq details p{padding-left:22px}
.related{display:grid;gap:10px;margin-top:14px}
.related a{display:block;padding:14px 16px;border-radius:14px;border:1px solid var(--line);background:rgba(255,255,255,.03);color:var(--ink);text-decoration:none;font-weight:600}
.related a:hover{border-color:rgba(167,139,250,.5)}
footer{border-top:1px solid var(--line);margin-top:40px;padding:26px 20px 36px;color:var(--dim);font-size:13px;text-align:center}
.foot-nav{display:flex;flex-wrap:wrap;justify-content:center;gap:8px 20px;max-width:760px;margin:0 auto 12px}
.foot-nav a{color:var(--mute);text-decoration:none}.foot-nav a:hover{color:var(--ink)}
.foot-copy{font-size:12px;color:var(--dim);margin:0}
@media(max-width:620px){.top-in{padding:10px 14px;gap:10px}.logo-mark{width:32px;height:32px}.logo-mark svg{width:21px;height:21px}.ai-tag{display:none}table{font-size:13.5px;display:block;overflow-x:auto;-webkit-overflow-scrolling:touch}td:first-child{white-space:normal}.top .btn{padding:9px 14px;font-size:13px}.wm{font-size:18px}}
.note{font-size:13.5px;color:var(--mute);padding:12px 14px;border-left:3px solid #f59e0b;background:rgba(245,158,11,.06);border-radius:0 10px 10px 0;margin:-14px 0 28px}
.sources li{font-size:14px}
.top-r{display:flex;align-items:center;gap:10px}
.lang{font-size:12px;font-weight:800;letter-spacing:.08em;color:var(--mute);padding:8px 10px;border-radius:10px;border:1px solid var(--line);text-decoration:none}
.lang:hover{color:var(--ink)}
.legal h2{font-size:22px;margin:34px 0 10px}
.legal p,.legal li{font-size:16px}
.legal address{font-style:normal;color:#cbd5e1;line-height:1.7;margin-bottom:16px}
.legal dl{display:grid;grid-template-columns:180px 1fr;gap:8px 16px;margin:6px 0 18px}
.legal dt{color:var(--dim)}.legal dd{color:#e2e8f0}
@media(max-width:620px){.legal dl{grid-template-columns:1fr}.legal dt{margin-top:8px}}
/* ── Guides hub and article extras ── */
body.hub main{max-width:1080px}
.pill{display:inline-block;font-size:11.5px;font-weight:800;letter-spacing:.08em;text-transform:uppercase;color:#c7d2fe;padding:5px 10px;border-radius:999px;border:1px solid rgba(129,140,248,.35);background:rgba(99,102,241,.12);margin-bottom:14px}
.hub-hero{padding:18px 0 30px;max-width:780px}
.eyebrow{display:inline-flex;align-items:center;gap:10px;font-size:13px;font-weight:800;letter-spacing:.16em;text-transform:uppercase;color:#a5b4fc;margin-bottom:14px}
.eyebrow::before{content:"";width:28px;height:2px;background:var(--grad);border-radius:2px}
.hub-hero h1{font-size:clamp(38px,6.4vw,64px);background:linear-gradient(180deg,#fff 30%,#c7d2fe);-webkit-background-clip:text;background-clip:text;color:transparent}
.lead{font-size:19px;color:#cbd5e1;max-width:680px}
.hub-meta{display:flex;flex-wrap:wrap;gap:8px;margin-top:20px}
.hub-meta span{font-size:13px;color:var(--mute);padding:6px 12px;border-radius:999px;border:1px solid var(--line);background:rgba(255,255,255,.03)}
.feat{display:block;position:relative;padding:34px;border-radius:24px;text-decoration:none;color:var(--ink);background:radial-gradient(ellipse at 100% 0%,rgba(236,72,153,.18),transparent 55%),radial-gradient(ellipse at 0% 100%,rgba(99,102,241,.25),transparent 60%),rgba(255,255,255,.03);border:1px solid rgba(129,140,248,.35);margin-bottom:34px;transition:transform .3s cubic-bezier(.2,.8,.2,1),border-color .3s}
.feat:hover{transform:translateY(-3px);border-color:rgba(167,139,250,.7)}
.feat h2{margin:0 0 10px;font-size:clamp(26px,3.4vw,36px)}
.feat p{max-width:720px}
.chips{display:flex;flex-wrap:wrap;gap:8px;margin:0 0 6px;position:sticky;top:61px;z-index:4;padding:10px 0;background:linear-gradient(var(--bg) 70%,transparent)}
.chip-f{font:inherit;font-size:14px;font-weight:700;color:var(--mute);padding:8px 14px;border-radius:999px;border:1px solid var(--line);background:rgba(255,255,255,.03);cursor:pointer;transition:all .2s}
.chip-f:hover{color:var(--ink)}
.chip-f.on{color:#fff;border-color:transparent;background:linear-gradient(120deg,#6366f1,#8b5cf6 50%,#ec4899)}
.hub-sec h2{margin:34px 0 16px}
.cards{display:grid;grid-template-columns:repeat(3,1fr);gap:16px}
.card{display:flex;flex-direction:column;padding:22px;border-radius:20px;border:1px solid var(--line);background:linear-gradient(180deg,rgba(255,255,255,.045),rgba(255,255,255,.015));color:var(--ink);text-decoration:none;transition:transform .3s cubic-bezier(.2,.8,.2,1),border-color .3s,opacity .6s,box-shadow .3s}
.card:hover{transform:translateY(-4px);border-color:rgba(167,139,250,.55);box-shadow:0 24px 60px -30px rgba(139,92,246,.6)}
.card h3{font-size:19px;line-height:1.3;margin:0 0 8px;letter-spacing:-.01em}
.card p{font-size:14.5px;color:var(--mute);margin-bottom:16px;flex:1}
.card .pill{align-self:flex-start;margin-bottom:12px}
.card-f{display:flex;justify-content:space-between;font-size:13px;color:var(--dim)}
.card-f .go{color:#a5b4fc;font-weight:700}
.card.rv{opacity:0;transform:translateY(18px)}.card.rv.in{opacity:1;transform:none}
.card.rv.in:hover{transform:translateY(-4px)}
.toc{margin:0 0 34px;padding:18px 22px;border-radius:16px;border:1px solid var(--line);background:rgba(255,255,255,.025)}
.toc b{display:block;font-size:12px;letter-spacing:.12em;text-transform:uppercase;color:var(--dim);margin-bottom:8px}
.toc ol{margin:0 0 0 18px}.toc li{font-size:15px;margin-bottom:4px}
.toc a{color:#cbd5e1;text-decoration:none}.toc a:hover{color:#fff}
article h2[id]{scroll-margin-top:80px}
.mid-cta{display:flex;align-items:center;gap:18px;margin:34px 0;padding:20px 22px;border-radius:18px;border:1px solid rgba(129,140,248,.3);background:linear-gradient(135deg,rgba(99,102,241,.12),rgba(236,72,153,.06))}
.mid-cta strong{display:block;font-size:16.5px;margin-bottom:4px}
.mid-cta p{font-size:15px;margin:0}
.mid-cta .btn{flex-shrink:0}
blockquote{margin:6px 0 20px;padding:12px 18px;border-left:3px solid #818cf8;background:rgba(129,140,248,.07);border-radius:0 12px 12px 0}
blockquote p{margin:0;color:#e2e8f0}
.rel-h{margin-top:46px}
.cards-3{grid-template-columns:repeat(3,1fr)}
body.art .cards-3{grid-template-columns:1fr}
.progress{position:fixed;left:0;right:0;top:0;height:3px;z-index:6;pointer-events:none}
.progress i{display:block;height:100%;background:var(--grad);transform:scaleX(0);transform-origin:0 50%}
@media(max-width:980px){.cards{grid-template-columns:1fr 1fr}}
@media(max-width:620px){.cards{grid-template-columns:1fr}.feat{padding:24px}.mid-cta{flex-direction:column;align-items:flex-start}.chips{top:53px;flex-wrap:nowrap;overflow-x:auto;-webkit-overflow-scrolling:touch;scrollbar-width:none}.chips::-webkit-scrollbar{display:none}.chip-f{flex-shrink:0}.lead{font-size:17px}}
@media(prefers-reduced-motion:reduce){.card,.feat{transition:none}.card.rv{opacity:1;transform:none}}