:root{color:#102033;font-family:Avenir Next,Segoe UI,sans-serif;background:radial-gradient(circle at top right,rgba(254,228,179,.5),transparent 32%),radial-gradient(circle at left 18%,rgba(170,219,255,.4),transparent 28%),linear-gradient(180deg,#fff9f0,#f5fbff 55%,#eef4fb)}*{box-sizing:border-box}html,body,#app{min-height:100%;margin:0}body{min-height:100vh}.shell{max-width:1300px;margin:0 auto;padding:32px 20px 60px}.hero{display:grid;grid-template-columns:minmax(0,1.8fr) minmax(320px,1fr);gap:24px;align-items:stretch;margin-bottom:28px}.hero-card{border:1px solid rgba(16,32,51,.1);border-radius:22px;padding:28px;background:#ffffffd9;box-shadow:0 16px 48px #1b426e1c}.badge{display:inline-block;padding:5px 12px;border-radius:999px;background:#102033;color:#fff;font-size:11px;letter-spacing:.08em;text-transform:uppercase}h1{margin:14px 0 10px;font-family:Georgia,Times New Roman,serif;font-size:46px;font-weight:700;line-height:1.1}h2{margin:0 0 10px;font-family:Georgia,Times New Roman,serif;font-size:26px;font-weight:700}h3{margin:0 0 8px;font-family:Georgia,Times New Roman,serif;font-size:18px;font-weight:700}h4{margin:0 0 10px;font-size:14px;font-weight:700;text-transform:uppercase;letter-spacing:.05em;color:#0d5c9e}p{margin:0;line-height:1.65;color:#364b63}code{font-family:Consolas,Liberation Mono,monospace;font-size:.9em;background:#0d5c9e14;padding:1px 5px;border-radius:4px}pre{margin:10px 0;padding:12px 14px;border-radius:12px;background:#0f2137;color:#dfeaf6;font-family:Consolas,Liberation Mono,monospace;font-size:12.5px;line-height:1.6;overflow-x:auto;white-space:pre}pre.code{background:#f0f5fa;color:#1a2f47;border:1px solid rgba(16,32,51,.08)}.feature-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:10px;margin-top:16px}.feature{padding:12px 14px;border-radius:14px;background:linear-gradient(180deg,#fff,#f2f7fb);border:1px solid rgba(16,32,51,.07);font-size:13.5px;line-height:1.5;color:#364b63}.feature strong{display:block;margin-bottom:3px;color:#102033;font-size:12px;text-transform:uppercase;letter-spacing:.05em}.hero-setup{display:grid;grid-template-rows:auto auto 1fr auto;gap:16px}.step{display:flex;gap:12px;align-items:flex-start}.step>div{min-width:0}.step-num{flex-shrink:0;width:28px;height:28px;border-radius:50%;background:#0d5c9e;color:#fff;font-weight:700;font-size:14px;display:flex;align-items:center;justify-content:center}.step strong{display:block;font-size:13px;margin-bottom:6px;color:#102033}.hero-setup pre{white-space:pre-wrap;overflow-wrap:anywhere;word-break:break-word;font-size:11.5px;line-height:1.55}.cta-row{display:flex;gap:10px;flex-wrap:wrap;margin-top:18px}.section-nav{margin-bottom:24px;padding:18px 20px;border:1px solid rgba(16,32,51,.08);border-radius:18px;background:#ffffffb8;box-shadow:0 10px 30px #1b426e14}.section-nav-copy{display:grid;gap:4px;margin-bottom:14px}.section-nav-copy strong{font-size:14px;color:#102033}.section-chip-row{display:flex;flex-wrap:wrap;gap:10px}.btn{display:inline-block;padding:10px 18px;border-radius:999px;font-weight:600;font-size:14px;background:linear-gradient(135deg,#d24b2a,#1f5ba7);color:#fff;text-decoration:none;cursor:pointer}.btn.secondary{background:#edf4fa;color:#14324f;border:1px solid rgba(20,50,79,.12)}.layout{display:grid;grid-template-columns:minmax(0,1fr) 280px;gap:24px;align-items:start}.panels{display:flex;flex-direction:column;gap:24px}.panel{border:1px solid rgba(16,32,51,.1);border-radius:22px;padding:24px;background:#ffffffd9;box-shadow:0 16px 48px #1b426e1a}.panel-header{display:flex;flex-direction:column;gap:6px;margin-bottom:18px}.panel-header-collapsible{flex-direction:row;justify-content:space-between;align-items:flex-start;gap:16px}.panel-kicker{display:inline-block;margin-bottom:6px;font-size:11px;font-weight:700;letter-spacing:.08em;text-transform:uppercase;color:#0d5c9e}.panel-toggle,.section-chip{flex-shrink:0}.panel-body{content-visibility:auto;contain-intrinsic-size:900px}.panel.collapsed .panel-header{margin-bottom:0}.demo-grid{display:grid;grid-template-columns:1fr;gap:18px}.demo-card{min-width:0;padding:18px;border-radius:18px;background:linear-gradient(180deg,#fff,#f7fafc);border:1px solid rgba(16,32,51,.08);overflow:hidden}.demo-card.full{grid-column:1 / -1}.chart-frame{margin-top:14px;padding:8px;border-radius:14px;background:#fff;border:1px solid rgba(16,32,51,.07);min-height:300px;min-width:0;overflow:hidden}.chart-host{min-height:300px}.chart-placeholder{display:grid;place-items:center;color:#4b6178;font-weight:700;background:linear-gradient(135deg,#eef4fbb3,#fff9f0e6)}.controls{display:flex;flex-wrap:wrap;gap:8px;margin-top:12px}button{appearance:none;border:0;border-radius:999px;padding:9px 15px;font:inherit;font-size:13px;font-weight:600;color:#fff;background:linear-gradient(135deg,#d24b2a,#1f5ba7);cursor:pointer}button.secondary{color:#14324f;background:#edf4fa;border:1px solid rgba(20,50,79,.12)}button.section-chip.is-active{color:#fff;background:#102033;border-color:#102033}button.ghost{color:#14324f;background:transparent;border:1px dashed rgba(20,50,79,.22)}button.small{padding:6px 12px;font-size:12px}.note{margin-top:12px;padding:10px 12px;border-radius:12px;background:#fff6e8;color:#6f4a16;border:1px solid rgba(210,128,31,.16);font-size:13px}.module-error{margin:12px 0 0;color:#b14a36;font-size:.92rem;line-height:1.5}.ref-panel .ref-grid{display:flex;flex-direction:column;gap:18px}.ref-card{padding:16px;border-radius:14px;background:linear-gradient(180deg,#fff,#f7fafc);border:1px solid rgba(16,32,51,.08)}.api-table{width:100%;border-collapse:collapse;font-size:13px}.api-table th{text-align:left;padding:6px 10px;background:#0d5c9e0f;color:#102033;font-size:12px;text-transform:uppercase;letter-spacing:.04em}.api-table td{padding:6px 10px;border-top:1px solid rgba(16,32,51,.06);color:#364b63;vertical-align:top}.api-table td:first-child{white-space:nowrap}.log-panel{position:sticky;top:20px;min-width:0;padding:20px;border:1px solid rgba(16,32,51,.1);border-radius:22px;background:#ffffffd9;box-shadow:0 16px 48px #1b426e1a;max-height:calc(100vh - 40px);overflow:hidden;display:flex;flex-direction:column;gap:10px}.log-controls{display:flex;justify-content:flex-end}.log-list{overflow-y:auto;display:flex;flex-direction:column;gap:6px;flex:1}.log-entry{padding:9px 12px;border-radius:12px;background:#f6f9fc;border:1px solid rgba(16,32,51,.07);color:#27425f;font-size:12.5px;line-height:1.45;font-family:Consolas,Liberation Mono,monospace;word-break:break-all}.footer{margin-top:28px;padding:20px 24px;border-radius:18px;background:#102033eb;color:#c8d8ea}@media(max-width:1280px){.layout{grid-template-columns:minmax(0,1fr) 260px}.demo-card.full{grid-column:auto}}@media(max-width:1100px){.hero,.layout{grid-template-columns:1fr}.log-panel{position:static;max-height:360px}}@media(max-width:760px){.demo-grid{grid-template-columns:1fr}.panel-header-collapsible{flex-direction:column}.demo-card.full{grid-column:auto}h1{font-size:34px}.feature-grid{grid-template-columns:1fr}}@media(max-width:500px){.shell{padding:18px 12px 40px}.hero-card,.panel,.log-panel{padding:16px;border-radius:16px}}