:root {
  --ink: #1c1c1e;
  --muted: #5c5c66;
  --bg: #f7f6f3;
  --card: #ffffff;
  --accent: #1f4b7a;
  --accent-2: #0e7c66;
  --line: #e4e2dc;
  --warn: #8a5a00;
  --danger: #9b1c1c;
  --radius: 14px;
  --font: "Segoe UI", system-ui, -apple-system, sans-serif;
}
* { box-sizing: border-box; }
html, body { margin: 0; padding: 0; font-family: var(--font); color: var(--ink); background: var(--bg); line-height: 1.5; }
a { color: var(--accent); }
.wrap { max-width: 1040px; margin: 0 auto; padding: 24px 20px 64px; }
.nav { display: flex; justify-content: space-between; align-items: center; gap: 12px; padding: 16px 20px; border-bottom: 1px solid var(--line); background: var(--card); position: sticky; top: 0; z-index: 10; }
.nav .brand { font-weight: 700; letter-spacing: -0.02em; color: var(--ink); text-decoration: none; font-size: 1.1rem; }
.nav nav { display: flex; gap: 14px; flex-wrap: wrap; align-items: center; }
.btn, button.btn { display: inline-flex; align-items: center; justify-content: center; gap: 8px; background: var(--accent); color: #fff; border: 0; border-radius: 999px; padding: 12px 20px; font-weight: 600; text-decoration: none; cursor: pointer; font-size: 0.95rem; }
.btn.secondary { background: transparent; color: var(--accent); border: 1.5px solid var(--accent); }
.btn.ghost { background: #eef3f8; color: var(--accent); }
.btn:disabled { opacity: 0.5; cursor: not-allowed; }
.hero { padding: 48px 0 24px; }
.hero h1 { font-size: clamp(2rem, 4vw, 3rem); line-height: 1.15; letter-spacing: -0.03em; margin: 0 0 12px; max-width: 16ch; }
.hero .sub { font-size: 1.15rem; color: var(--muted); max-width: 42ch; margin: 0 0 24px; }
.cta-row { display: flex; flex-wrap: wrap; gap: 12px; margin-bottom: 12px; }
.price { font-size: 0.95rem; color: var(--muted); }
.price strong { color: var(--ink); }
.grid { display: grid; gap: 16px; }
.grid.cards { grid-template-columns: repeat(auto-fit, minmax(220px, 1fr)); }
.card { background: var(--card); border: 1px solid var(--line); border-radius: var(--radius); padding: 18px; }
.card h3 { margin: 0 0 8px; font-size: 1.05rem; }
.card p { margin: 0; color: var(--muted); font-size: 0.95rem; }
.section { margin-top: 40px; }
.section h2 { margin: 0 0 12px; letter-spacing: -0.02em; }
.badge { display: inline-block; background: #eef3f8; color: var(--accent); border-radius: 999px; padding: 4px 10px; font-size: 0.75rem; font-weight: 700; letter-spacing: 0.04em; }
.badge.test { background: #fff4d6; color: var(--warn); }
.badge.demo { background: #eee; color: #555; }
.sample-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(240px, 1fr)); gap: 14px; }
.sample-grid img { width: 100%; height: auto; border-radius: 12px; border: 1px solid var(--line); background: #fff; }
.featured { display: none; } /* shown only when API returns members */
.featured.visible { display: block; }
.featured ul { list-style: none; padding: 0; margin: 12px 0 0; display: grid; gap: 8px; }
.featured li { background: var(--card); border: 1px solid var(--line); border-radius: 12px; padding: 12px 14px; }
.fomo { color: var(--accent-2); font-weight: 600; margin-top: 8px; }
form label { display: block; font-weight: 600; margin: 14px 0 6px; font-size: 0.9rem; }
form input, form textarea, form select { width: 100%; padding: 12px 14px; border-radius: 10px; border: 1px solid var(--line); font: inherit; background: #fff; }
form textarea { min-height: 90px; resize: vertical; }
.help { font-size: 0.85rem; color: var(--muted); font-weight: 400; }
.checkbox { display: flex; gap: 10px; align-items: flex-start; margin: 14px 0; font-weight: 500; }
.checkbox input { width: auto; margin-top: 4px; }
.notice { padding: 12px 14px; border-radius: 10px; background: #fff4d6; color: var(--warn); border: 1px solid #f0d48a; margin: 12px 0; font-size: 0.9rem; }
.notice.ok { background: #e8f6f1; color: #0e5c4a; border-color: #b7e0d2; }
.notice.err { background: #fdecec; color: var(--danger); border-color: #f0b4b4; }
.footer { margin-top: 64px; padding: 28px 20px; border-top: 1px solid var(--line); color: var(--muted); font-size: 0.85rem; }
.footer .addr { margin-top: 6px; }
.pack-item { display: flex; justify-content: space-between; gap: 12px; align-items: center; padding: 12px 0; border-bottom: 1px solid var(--line); }
.pack-item:last-child { border-bottom: 0; }
pre.copy { white-space: pre-wrap; background: #f0efea; padding: 14px; border-radius: 10px; font-size: 0.9rem; }
.tabs { display: flex; gap: 8px; flex-wrap: wrap; margin: 12px 0; }
.tabs button { border-radius: 999px; border: 1px solid var(--line); background: #fff; padding: 8px 14px; cursor: pointer; }
.tabs button.active { background: var(--accent); color: #fff; border-color: var(--accent); }
@media (max-width: 640px) {
  .hero { padding-top: 28px; }
  .nav { flex-direction: column; align-items: flex-start; }
}