:root{--bg:#071226;--panel:rgba(255,255,255,.075);--panel2:rgba(255,255,255,.12);--border:rgba(255,255,255,.16);--text:#f7fbff;--muted:#aab8cc;--cyan:#3ee8ff;--green:#4ef0a1;--violet:#a98cff;--yellow:#ffd166;--red:#ff6b6b}*{box-sizing:border-box}body{margin:0;font-family:Inter,system-ui,-apple-system,Segoe UI,Roboto,Arial,sans-serif;background:radial-gradient(circle at 10% 0%,rgba(62,232,255,.18),transparent 28rem),radial-gradient(circle at 90% 10%,rgba(169,140,255,.14),transparent 28rem),linear-gradient(135deg,#071226,#0d1b2f);color:var(--text)}a{color:inherit}.layout{display:grid;grid-template-columns:310px 1fr;min-height:100vh}.sidebar{position:sticky;top:0;height:100vh;overflow:auto;padding:22px;background:rgba(0,0,0,.20);border-right:1px solid var(--border);backdrop-filter:blur(14px)}.brand{font-weight:900;letter-spacing:-.04em;font-size:1.25rem;margin-bottom:8px}.subtitle{color:var(--muted);line-height:1.45}.search{width:100%;margin:18px 0;padding:12px 14px;border-radius:14px;border:1px solid var(--border);background:rgba(0,0,0,.22);color:var(--text)}.nav a{display:block;padding:9px 10px;margin:4px 0;border-radius:12px;text-decoration:none;color:#dce6f5;font-size:.9rem}.nav a:hover{background:rgba(62,232,255,.12)}main{padding:34px;max-width:1180px}.hero{border:1px solid var(--border);border-radius:34px;padding:34px;background:linear-gradient(135deg,rgba(255,255,255,.105),rgba(255,255,255,.045));box-shadow:0 24px 80px rgba(0,0,0,.32)}h1{font-size:clamp(2.4rem,6vw,5.4rem);line-height:.92;letter-spacing:-.075em;margin:0 0 16px}.lead{font-size:1.12rem;color:#dce6f5;line-height:1.75;max-width:880px}.pillrow{display:flex;gap:8px;flex-wrap:wrap;margin-top:18px}.pill{display:inline-flex;padding:7px 10px;border-radius:999px;background:rgba(62,232,255,.10);border:1px solid rgba(62,232,255,.22);font-weight:750;font-size:.82rem}.grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:14px;margin:22px 0}.card{border:1px solid var(--border);border-radius:24px;padding:18px;background:var(--panel)}.card h3{margin:0 0 8px;letter-spacing:-.035em}.card p,.card li{color:#dce6f5;line-height:1.58}.section{margin:24px 0;padding:24px;border:1px solid var(--border);border-radius:28px;background:rgba(255,255,255,.055)}.section h2{margin:0 0 14px;font-size:1.8rem;letter-spacing:-.045em}.section h3{margin-top:22px}.section ol,.section ul{padding-left:24px}.section li{margin:9px 0;line-height:1.65}.tablewrap{overflow:auto}.btn{display:inline-flex;align-items:center;gap:8px;border:1px solid var(--border);padding:12px 14px;border-radius:14px;text-decoration:none;background:rgba(255,255,255,.08);font-weight:850}.btn.primary{background:linear-gradient(135deg,var(--cyan),var(--green));color:#071226;border:0}.flash{cursor:pointer}.answer{display:none;margin-top:10px;color:#caffdf}.flash.open .answer{display:block}.question{border-left:4px solid var(--violet);padding-left:14px;margin:18px 0}.footer{color:var(--muted);padding:40px 0}.topbar{display:none}.image-grid{display:grid;grid-template-columns:repeat(5,1fr);gap:10px}.image-grid img{width:100%;border-radius:16px;border:1px solid var(--border);background:#0b1628}@media(max-width:1000px){.layout{display:block}.sidebar{position:relative;height:auto}.grid{grid-template-columns:1fr}.image-grid{grid-template-columns:repeat(2,1fr)}main{padding:18px}.topbar{display:block;padding:12px 18px;background:#071226;position:sticky;top:0;z-index:10}}