:root { --bg:#0b0d12; --card:#131722; --ink:#e8eefc; --muted:#9fb3d1; --accent:#6dd3ff; --brand:#f4a261; }
*{box-sizing:border-box}
body{margin:0;background:linear-gradient(180deg,#0b0d12,#0b0d12 60%,#0d1117);color:var(--ink);font:16px/1.6 Inter,system-ui,sans-serif}
.wrap{max-width:1100px;margin:0 auto;padding:16px}
.site-header{position:sticky;top:0;background:#0b0d12cc;border-bottom:1px solid #1f2633;backdrop-filter:blur(8px);z-index:9}
.brand{font-weight:800;letter-spacing:.3px;margin-right:18px;color:#fff;text-decoration:none}
nav a{color:var(--muted);text-decoration:none;margin:0 10px}
nav a:hover{color:#fff}
.page{background:var(--card);border:1px solid #1f2633;border-radius:14px;padding:24px;box-shadow:0 10px 30px #00000055}
h1,h2,h3{line-height:1.2}
h1{font-size:2rem}
.hero{display:grid;gap:14px;padding:24px;background:#0e1420;border:1px solid #1f2633;border-radius:14px}
.hero .grid{display:grid;gap:12px;grid-template-columns:repeat(auto-fit,minmax(220px,1fr))}
.badge{display:inline-block;padding:4px 10px;border:1px solid #2a3245;border-radius:999px;background:#0f1522;color:#cfe8ff;font-weight:600}
.callout{border-left:4px solid var(--accent);padding:12px;margin:16px 0;background:#0e1420}
table{width:100%;border-collapse:collapse;background:#0e1420;border:1px solid #1f2633;border-radius:8px;overflow:hidden}
th,td{padding:10px;border-bottom:1px solid #1f2633;text-align:left}
code,kbd{background:#0e1420;border:1px solid #1f2633;padding:2px 6px;border-radius:6px}
footer{color:#72809a}
.small{font-size:.92rem;color:var(--muted)}
ul.checklist{list-style:none;padding-left:0}
ul.checklist li{padding-left:26px;position:relative;margin:10px 0}
ul.checklist li::before{content:"✔";position:absolute;left:0;color:#79e38b}
hr{border:none;border-top:1px solid #1f2633;margin:24px 0}
.notice{padding:12px;border:1px dashed #2a3245;border-radius:8px;background:#0b1320;color:#bcd1f5}
/* Fix Chart.js mobile collapse bug */
.rr-chart-container, canvas {
    min-height: 260px !important;
    width: 100% !important;
    display: block !important;
}