:root{color-scheme:light;--bg:#0f1115;--panel:#151a21;--panel-soft:#1c2330;--text:#f5f2eb;--muted:#a4b0c3;--accent:#ffd166;--accent-strong:#fbbf24;--line:#2b3445;--success:#7ed957;--shadow:0 24px 60px rgba(15,17,21,0.45);font-family:Palatino Linotype,Book Antiqua,Palatino,Times New Roman,serif}*{box-sizing:border-box;margin:0;padding:0}body{background:radial-gradient(circle at top,#263042 0,#0f1115 45%,#0b0d11 100%);color:var(--text);min-height:100vh}a{color:inherit;text-decoration:none}.app-shell{display:flex;flex-direction:column;min-height:100vh}.top-nav{justify-content:space-between;padding:24px 48px 0}.brand,.top-nav{display:flex;align-items:center;gap:16px}.brand-mark{width:48px;height:48px;display:grid;place-items:center;border-radius:14px;background:linear-gradient(140deg,#ffd166,#ff8c42);color:#2c1f0a;font-weight:700;letter-spacing:1px;box-shadow:var(--shadow)}.brand-title{font-size:18px;letter-spacing:.6px}.brand-subtitle{font-size:13px;color:var(--muted)}.nav-links{display:flex;gap:16px}.nav-link{padding:10px 16px;border:1px solid var(--line);border-radius:999px;background:rgba(255,255,255,.04);transition:all .2s ease}.nav-link:hover{border-color:var(--accent);color:var(--accent)}.page{display:flex;flex-direction:column;gap:28px;padding:32px 48px 60px}.hero{display:grid;grid-template-columns:minmax(0,1.4fr) minmax(0,1fr);grid-gap:24px;gap:24px;align-items:center;animation:fadeUp .6s ease}.hero h1{font-size:clamp(32px,4vw,48px);margin-bottom:8px}.hero-subtitle{font-size:18px;color:var(--muted);margin-bottom:12px}.badge{display:inline-flex;padding:8px 14px;border-radius:999px;background:rgba(255,209,102,.15);color:var(--accent);font-weight:600;letter-spacing:.4px;margin-bottom:16px}.hero-explainer{background:linear-gradient(130deg,rgba(255,209,102,.08),rgba(126,217,87,.08));border:1px solid rgba(255,209,102,.2);padding:16px 18px;border-radius:18px;box-shadow:var(--shadow)}.hero-explainer p{line-height:1.6;color:var(--text)}.hero-note{margin-top:10px;font-size:14px;color:var(--muted)}.hero-actions{display:flex;flex-direction:column;gap:16px;align-items:flex-start}.example-row{display:flex;flex-wrap:wrap;gap:10px}.layout{display:grid;grid-template-columns:minmax(0,1fr) minmax(0,1fr);grid-gap:24px;gap:24px}.panel{background:var(--panel);border-radius:22px;padding:22px;border:1px solid var(--line);box-shadow:var(--shadow)}.left-panel{gap:16px}.left-panel,.right-panel{display:flex;flex-direction:column}.right-panel{gap:18px}.panel-header h2{margin-bottom:6px}.panel-header p{color:var(--muted)}.form-group{display:flex;flex-direction:column;gap:8px}.form-row{display:grid;grid-template-columns:repeat(auto-fit,minmax(220px,1fr));grid-gap:16px;gap:16px}label{font-weight:600;font-size:14px;letter-spacing:.4px}input[type=text],textarea{width:100%;background:var(--panel-soft);border:1px solid var(--line);border-radius:14px;padding:12px 14px;color:var(--text);font-size:15px;font-family:Palatino Linotype,Book Antiqua,Palatino,Times New Roman,serif}textarea{resize:vertical}.segmented{display:flex;gap:8px}.seg{flex:1 1;padding:10px 12px;border-radius:12px;border:1px solid var(--line);background:rgba(255,255,255,.03);color:var(--text);cursor:pointer;transition:all .2s ease}.seg.active{border-color:var(--accent);color:#2c1f0a;background:linear-gradient(130deg,#ffd166,#ff8c42)}.toggle{display:flex;align-items:center;gap:10px}.toggle input{width:18px;height:18px}.hint{font-size:12px;color:var(--muted);line-height:1.5}.section-header{display:flex;justify-content:space-between;align-items:center;gap:12px}.section-header p{color:var(--muted)}.panel-section{display:flex;flex-direction:column;gap:12px}.output-box{background:#0d1119;border:1px solid var(--line);border-radius:16px;padding:16px;color:#e6edf7;font-size:14px;line-height:1.6;white-space:pre-wrap;font-family:Consolas,Courier New,monospace}.btn{padding:10px 16px;border-radius:999px;border:1px solid transparent;cursor:pointer;font-weight:600;letter-spacing:.3px;background:linear-gradient(130deg,#ffd166,#ff8c42);color:#2c1f0a;transition:all .2s ease}.btn:hover{transform:translateY(-1px);box-shadow:0 12px 24px rgba(255,140,66,.2)}.btn.secondary{background:rgba(255,255,255,.08);border-color:var(--line);color:var(--text)}.btn.ghost{background:transparent;border:1px solid var(--line);color:var(--text)}.btn.small{padding:8px 12px;font-size:12px}.envelope summary{display:flex;align-items:center;justify-content:space-between;gap:12px;cursor:pointer;list-style:none}.envelope summary::-webkit-details-marker{display:none}.summary-text h3{margin-bottom:4px}.guardrails{background:linear-gradient(140deg,rgba(126,217,87,.12),rgba(255,209,102,.08))}.guardrail-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(160px,1fr));grid-gap:12px;gap:12px}.guardrail-grid span{display:block;color:var(--muted);font-size:12px}.guardrail-grid strong{font-size:18px}@keyframes fadeUp{0%{opacity:0;transform:translateY(12px)}to{opacity:1;transform:translateY(0)}}@media (max-width:1024px){.hero,.layout{grid-template-columns:1fr}.top-nav{flex-direction:column;align-items:flex-start}.page,.top-nav{padding:24px}}@media (max-width:640px){.section-header,.segmented{flex-direction:column}.section-header{align-items:flex-start}}