:root{
  --bg:#071019; --panel:#0c1824; --panel2:#102131; --line:#21384c;
  --text:#eef6fb; --muted:#9fb2c2; --accent:#61dafb; --accent2:#92f0c8;
  --warn:#ffd27a; --max:1220px; --shadow:0 18px 60px rgba(0,0,0,.28);
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{margin:0;background:linear-gradient(180deg,#061019 0,#08131d 30%,#09141e 100%);color:var(--text);font:16px/1.6 system-ui,-apple-system,Segoe UI,Roboto,Arial,sans-serif}
a{color:inherit}.wrap{width:min(var(--max),calc(100% - 40px));margin:auto}
header{position:sticky;top:0;z-index:20;background:rgba(7,16,25,.88);backdrop-filter:blur(16px);border-bottom:1px solid var(--line)}
nav{height:68px;display:flex;align-items:center;justify-content:space-between;gap:16px}
.brand{font-weight:800;letter-spacing:.06em}.brand span{color:var(--accent)}
.navlinks{display:flex;gap:18px;flex-wrap:wrap}.navlinks a{text-decoration:none;color:var(--muted);font-size:14px}.navlinks a:hover{color:white}
.hero{padding:92px 0 54px;position:relative;overflow:hidden}
.hero:after{content:"";position:absolute;width:650px;height:650px;border-radius:50%;background:radial-gradient(circle,rgba(97,218,251,.17),transparent 68%);right:-240px;top:-300px;pointer-events:none}
.eyebrow{text-transform:uppercase;letter-spacing:.16em;color:var(--accent2);font-size:12px;font-weight:800}
h1{font-size:clamp(42px,7vw,84px);line-height:.95;margin:16px 0 26px;max-width:1000px;letter-spacing:-.045em}
.lead{max-width:920px;font-size:21px;color:#c8d7e2}
.cta{display:flex;flex-wrap:wrap;gap:12px;margin-top:30px}
.btn{display:inline-flex;align-items:center;gap:8px;border:1px solid var(--line);padding:11px 15px;border-radius:10px;text-decoration:none;font-weight:700;background:#0b1b28}
.btn.primary{background:var(--accent);color:#041118;border-color:transparent}.btn:hover{transform:translateY(-1px)}
.stats{display:grid;grid-template-columns:repeat(5,1fr);gap:12px;margin-top:44px}
.stat{padding:18px;border:1px solid var(--line);background:rgba(13,29,42,.72);border-radius:14px}.stat b{display:block;font-size:28px}.stat span{color:var(--muted);font-size:13px}
section{padding:58px 0}.section-title{font-size:36px;line-height:1.1;margin:0 0 14px}.section-intro{color:var(--muted);max-width:900px;margin-bottom:28px}
.principle{border:1px solid #2a4c60;background:linear-gradient(135deg,#0c2130,#0d1925);padding:24px;border-radius:16px;box-shadow:var(--shadow)}
.principle strong{color:var(--accent2)}
.featured-grid{display:grid;grid-template-columns:repeat(5,1fr);gap:12px}
.feature{border:1px solid var(--line);background:var(--panel);padding:18px;border-radius:14px;min-height:215px}
.feature .num{color:var(--accent);font-weight:800;font-size:12px}.feature h3{font-size:18px;line-height:1.25}.feature p{font-size:14px;color:var(--muted)}
.controls{display:grid;grid-template-columns:1.5fr repeat(2,.8fr);gap:10px;margin:22px 0}
input,select{width:100%;border:1px solid var(--line);background:#0b1722;color:white;padding:12px;border-radius:10px;font:inherit}
.chapter{margin:45px 0 16px;padding-top:10px;border-top:1px solid var(--line);color:var(--accent2);font-weight:800;letter-spacing:.06em;text-transform:uppercase;font-size:13px}
.evidence{border:1px solid var(--line);background:linear-gradient(180deg,var(--panel),#0a1620);border-radius:16px;margin:14px 0;overflow:hidden;box-shadow:0 8px 28px rgba(0,0,0,.13)}
.evidence summary{list-style:none;cursor:pointer;padding:20px;display:grid;grid-template-columns:58px 1fr auto;gap:14px;align-items:center}
.evidence summary::-webkit-details-marker{display:none}
.badge-num{height:46px;width:46px;border:1px solid #315169;border-radius:12px;display:grid;place-items:center;color:var(--accent);font-weight:900}
.summary-title b{display:block;font-size:19px}.meta{color:var(--muted);font-size:13px}.qpu{font-size:12px;padding:6px 9px;border-radius:999px;background:#102b3c;border:1px solid #24485f;white-space:nowrap}
.content{padding:0 20px 22px 92px;border-top:1px solid rgba(33,56,76,.65)}
.factgrid{display:grid;grid-template-columns:repeat(3,1fr);gap:8px;margin:18px 0}
.fact{padding:10px;border:1px solid var(--line);border-radius:10px;background:#0c1b27}.fact small{color:var(--muted);display:block}.fact b{font-size:14px}
.explain{display:grid;grid-template-columns:1fr 1fr;gap:16px}.box{background:#0b1722;border:1px solid var(--line);padding:16px;border-radius:12px}.box h4{margin:0 0 6px;color:var(--accent2)}
.verify{margin-top:16px;background:#0b2028;border:1px solid #245365;padding:14px;border-radius:12px}.verify strong{color:var(--accent)}
.scope{margin-top:12px;color:var(--muted);font-size:14px}
.hashrow{display:grid;grid-template-columns:1fr auto;gap:8px;align-items:center;margin-top:16px}.hash{font:12px/1.5 ui-monospace,SFMono-Regular,Menlo,monospace;background:#051019;border:1px solid var(--line);padding:10px;border-radius:9px;word-break:break-all}
.smallbtn{border:1px solid var(--line);background:#102536;color:white;padding:9px 11px;border-radius:9px;cursor:pointer}
.actions{display:flex;gap:9px;flex-wrap:wrap;margin-top:14px}
.manifest-table{width:100%;border-collapse:collapse;font-size:13px}.manifest-table th,.manifest-table td{padding:10px;border-bottom:1px solid var(--line);vertical-align:top;text-align:left}.manifest-table th{color:var(--accent2)}.manifest-table code{font-size:11px;word-break:break-all}
.complement{display:grid;grid-template-columns:repeat(5,1fr);gap:10px}.comp{padding:16px;border:1px solid var(--line);border-radius:13px;background:var(--panel)}.comp b{display:block;margin-bottom:5px}.comp p{font-size:13px;color:var(--muted)}
footer{border-top:1px solid var(--line);padding:40px 0 60px;color:var(--muted);font-size:13px}
.hidden{display:none!important}
@media(max-width:980px){.featured-grid,.complement{grid-template-columns:repeat(2,1fr)}.stats{grid-template-columns:repeat(3,1fr)}}
@media(max-width:720px){.wrap{width:min(100% - 24px,var(--max))}.navlinks{display:none}.hero{padding-top:58px}.stats,.controls,.featured-grid,.complement,.factgrid,.explain{grid-template-columns:1fr}.evidence summary{grid-template-columns:48px 1fr}.qpu{grid-column:2}.content{padding:0 14px 18px}.hashrow{grid-template-columns:1fr}.manifest-wrap{overflow-x:auto}}