:root{--bg:#f6f7f8;--card-bg:#ffffff;--text:#1f2937;--muted:#6b7280;--brand:#f59e0b;--brand-dark:#d97706;--border:#e5e7eb;--shadow:0 6px 18px rgba(15,23,42,.06)}*{box-sizing:border-box}html,body,#root{height:100%}body{margin:0;background:var(--bg);color:var(--text);font-family:system-ui,-apple-system,Segoe UI,Roboto}.app{max-width:1040px;margin:0 auto;padding:28px}.app-title{margin:0;font-weight:700;letter-spacing:.2px;color:var(--brand)}.toolbar{display:flex;align-items:center;gap:12px;margin-top:8px;color:var(--muted)}.section-header{border-bottom:2px solid rgba(245,158,11,.35);padding-bottom:8px}.card{background:var(--card-bg);border:1px solid var(--border);border-radius:14px;padding:16px;box-shadow:var(--shadow)}.card{scroll-margin-top:72px}.card+.card{margin-top:16px}.card-title{font-weight:600;color:var(--brand-dark)}.btn{-webkit-appearance:none;-moz-appearance:none;appearance:none;border:1px solid var(--border);background:#fff;color:var(--text);padding:8px 12px;border-radius:10px;cursor:pointer;transition:all .15s ease}.btn:hover{transform:translateY(-1px)}.btn:disabled{opacity:.55;cursor:not-allowed}.btn-primary{background:var(--brand);border-color:var(--brand);color:#fff}.btn-primary:hover{background:var(--brand-dark);border-color:var(--brand-dark)}.btn-secondary{background:#fff}.btn-danger{background:#ef4444;border-color:#ef4444;color:#fff}.grid{display:flex;gap:10px;flex-wrap:wrap}.muted{color:var(--muted)}.mono{background:#f7f9fc;border:1px solid var(--border);padding:12px;border-radius:10px;overflow:auto}input,select{border:1px solid var(--border);border-radius:10px;padding:8px 10px;background:#fff}input:focus,select:focus{outline:none;border-color:var(--brand);box-shadow:0 0 0 3px #f59e0b26}label{color:var(--muted)}.section-header{display:flex;align-items:center;justify-content:space-between}.landing{max-width:1160px;margin:0 auto;padding:24px}.nav{display:flex;align-items:center;justify-content:space-between;position:sticky;top:0;background:#1f2937d9;-webkit-backdrop-filter:saturate(180%) blur(8px);backdrop-filter:saturate(180%) blur(8px);border-bottom:1px solid rgba(255,255,255,.12);padding:12px 16px;z-index:10;color:#fff}.nav .brand{font-weight:700;letter-spacing:.3px;color:#fff}.nav .nav-actions{display:flex;gap:10px;align-items:center}.pill{display:inline-block;padding:8px 12px;border:1px solid rgba(255,255,255,.25);border-radius:999px;color:#fff;background:transparent;transition:all .15s ease}.pill:hover{transform:translateY(-1px);border-color:#ffffff61}.chip{display:inline-block;padding:6px 10px;border:1px solid var(--border);border-radius:999px;background:#fff;color:var(--text)}.landing-hero{margin:32px auto;max-width:860px;text-align:center;padding:28px;border-radius:16px;background:linear-gradient(135deg,#fff7ed,#fffbeb)}.hero-title{margin:0;font-size:32px;line-height:1.25}.hero-subtitle{margin:8px 0 0;color:var(--muted)}.search{display:flex;gap:8px;align-items:center;justify-content:center;margin-top:18px}.features-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:12px;margin-top:8px}.feature-card{border:1px solid var(--border);border-radius:12px;padding:14px;background:#fff;box-shadow:var(--shadow);cursor:pointer;transition:transform .15s ease,box-shadow .15s ease}.feature-card:hover{transform:translateY(-2px);box-shadow:0 8px 20px #f59e0b2e}.feature-title{font-weight:600}.feature-desc{color:var(--muted);margin-top:4px}.updates{list-style:none;margin:8px 0 0;padding:0}.announcement{display:flex;align-items:center;justify-content:space-between;padding:8px 0;border-bottom:1px dashed var(--border)}.help-links{display:flex;gap:8px;flex-wrap:wrap;margin:8px 0 0;padding:0;list-style:none}.skeleton{background:linear-gradient(90deg,#f3f4f6,#e5e7eb,#f3f4f6);background-size:200% 100%;animation:skeleton 1.2s ease-in-out infinite;border-radius:8px}@keyframes skeleton{0%{background-position:200% 0}to{background-position:-200% 0}}.fade-in{animation:fade .28s ease both}@keyframes fade{0%{opacity:0;transform:translateY(6px)}to{opacity:1;transform:none}}@media (max-width:900px){.features-grid{grid-template-columns:repeat(2,1fr)}}@media (max-width:560px){.features-grid{grid-template-columns:1fr}.landing{padding:16px}.nav{padding:10px 12px}.hero-title{font-size:24px}}