:root{--bg:#0b0e12;--elev:#10151b;--card:#141b23;--text:#e8edf5;--muted:#9fb1c9;--brand:#4fa3ff;--brand2:#19c5aa;--border:#223243;--radius:16px;--shadow:0 12px 34px rgba(0,0,0,.34)}*{box-sizing:border-box}html,body{height:100%}body{margin:0;background:transparent;color:var(--text);font-family:Inter,system-ui,-apple-system,Segoe UI,Roboto,Ubuntu,Cantarell,Noto Sans,Helvetica,Arial;line-height:1.72}a{color:inherit}.article-wrap{width:100%;padding:0 16px 22px}.hero{position:relative;overflow:hidden;border:1px solid var(--border);border-radius:24px;padding:28px 20px;margin:10px 0 14px;background: radial-gradient(circle at top right,rgba(79,163,255,.22),transparent 34%),radial-gradient(circle at bottom left,rgba(25,197,170,.18),transparent 32%),linear-gradient(180deg,rgba(20,27,35,.98),rgba(10,14,18,.98));box-shadow:var(--shadow)}.eyebrow{font-size:.82rem;font-weight:800;letter-spacing:.16em;color:var(--brand2);text-transform:uppercase;margin-bottom:10px}.page-title{margin:0;font-size:clamp(2rem,4vw,3rem);line-height:1.05;font-weight:900}.page-subtitle{max-width:900px;color:#d4deea;margin:.7rem 0 0;font-size:1.04rem}.chips{display:flex;flex-wrap:wrap;gap:8px;margin-top:16px}.chip{display:inline-flex;align-items:center;padding:.4rem .72rem;border-radius:999px;background:rgba(16,21,27,.86);border:1px solid var(--border);font-weight:700}.article-card{background:var(--card);border:1px solid var(--border);border-radius:var(--radius);box-shadow:var(--shadow);padding:22px}.lead{font-size:1.08rem;color:#dce5f1;margin-top:0}.article-card h2{font-size:1.48rem;margin:1.6rem 0 .7rem;line-height:1.2}.article-card h3{font-size:1.02rem;margin:0 0 .45rem;color:#fff}.article-card p{margin:.55rem 0}.cards{display:grid;grid-template-columns:repeat(auto-fit,minmax(230px,1fr));gap:14px;margin:.85rem 0}.card{background:linear-gradient(180deg,rgba(16,21,27,.96),rgba(11,14,18,.96));border:1px solid var(--border);border-radius:14px;padding:14px}.card p:last-child,.card ul:last-child{margin-bottom:0}ul,ol{padding-left:1.2rem}li+li{margin-top:.28rem}.highlight,.note,.closing,.formula{border:1px solid var(--border);border-radius:14px;padding:12px 14px;margin:.95rem 0}.highlight{background:linear-gradient(90deg,rgba(79,163,255,.12),rgba(25,197,170,.08));font-weight:700}.note{background:rgba(25,197,170,.08);border-left:4px solid var(--brand2)}.closing{background:rgba(79,163,255,.1);font-weight:800}.formula{background:rgba(16,21,27,.9);font-family:ui-monospace,SFMono-Regular,Consolas,monospace;color:#f0f5fb;text-align:center;font-weight:800;letter-spacing:.05em}.toc{margin:1rem 0;border:1px solid var(--border);border-radius:14px;background:var(--elev);padding:12px 14px}.toc summary{cursor:pointer;font-weight:800}.table-wrap{overflow:auto}table{width:100%;border-collapse:collapse;border:1px solid var(--border);border-radius:14px;overflow:hidden;margin-top:.8rem}th,td{padding:12px;border-bottom:1px solid var(--border);text-align:left;vertical-align:top}thead th{background:color-mix(in oklab,var(--brand) 18%,transparent)}html{scrollbar-color:color-mix(in oklab,var(--brand)70%,var(--brand2)) var(--elev);scrollbar-width:thin}*::-webkit-scrollbar{width:10px;height:10px}*::-webkit-scrollbar-track{background:var(--elev);border-left:1px solid var(--border)}*::-webkit-scrollbar-thumb{background:linear-gradient(180deg,var(--brand),var(--brand2));border-radius:10px;border:2px solid var(--elev)}@media (max-width:760px){.article-wrap{padding:0 12px 18px}.hero{padding:22px 16px;border-radius:20px}.article-card{padding:16px}.article-card h2{font-size:1.28rem}}