:root {
  --navy: #0b2e6d;
  --gold: #d9a93b;
  --bg: #f6f8fb;
  --card: #ffffff;
  --text: #1f2937;
  --gray: #6b7280;
  --danger: #c0392b;
  --ok: #1a7a3c;
  --radius: 14px;
}

* { box-sizing: border-box; }

body {
  margin: 0;
  font-family: "Noto Sans Thai", "Segoe UI", system-ui, sans-serif;
  background: var(--bg);
  color: var(--text);
  line-height: 1.6;
}

header.site {
  background: var(--navy);
  color: #fff;
  padding: 20px 16px;
  text-align: center;
}
header.site h1 { margin: 0; font-size: 1.3rem; }
header.site p { margin: 4px 0 0; color: #cddcee; font-size: 0.85rem; }

main {
  max-width: 960px;
  margin: 0 auto;
  padding: 16px;
}

.grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 16px;
}
@media (min-width: 640px) {
  .grid { grid-template-columns: repeat(2, 1fr); }
}
@media (min-width: 960px) {
  .grid { grid-template-columns: repeat(3, 1fr); }
}

.card {
  background: var(--card);
  border-radius: var(--radius);
  overflow: hidden;
  box-shadow: 0 1px 4px rgba(0,0,0,0.08);
  display: flex;
  flex-direction: column;
}
.card img.cover {
  width: 100%;
  aspect-ratio: 4 / 3;
  object-fit: cover;
  background: #e5e9f0;
}
.card .body { padding: 14px; flex: 1; display: flex; flex-direction: column; gap: 6px; }
.card h3 { margin: 0; font-size: 1.05rem; }
.card p.desc { margin: 0; color: var(--gray); font-size: 0.88rem; flex: 1; }
.card .price { font-weight: bold; color: var(--navy); font-size: 1.1rem; }

button, .btn {
  display: inline-block;
  background: var(--navy);
  color: #fff;
  border: none;
  border-radius: 10px;
  padding: 12px 16px;
  font-size: 0.95rem;
  cursor: pointer;
  text-align: center;
  text-decoration: none;
  width: 100%;
}
button:disabled { opacity: 0.6; cursor: not-allowed; }
button.secondary, .btn.secondary { background: #e5e9f0; color: var(--text); }
button.gold, .btn.gold { background: var(--gold); color: #3a2c05; }
button.danger { background: var(--danger); }

.state-box {
  background: var(--card);
  border-radius: var(--radius);
  padding: 32px 20px;
  text-align: center;
  box-shadow: 0 1px 4px rgba(0,0,0,0.08);
}
.state-box .icon { font-size: 2.4rem; margin-bottom: 8px; }
.state-box.ok { color: var(--ok); }
.state-box.err { color: var(--danger); }

.spinner {
  width: 32px; height: 32px;
  border: 4px solid #e5e9f0;
  border-top-color: var(--navy);
  border-radius: 50%;
  margin: 0 auto 14px;
  animation: spin 0.9s linear infinite;
}
@keyframes spin { to { transform: rotate(360deg); } }

form.stack { display: flex; flex-direction: column; gap: 10px; }
form.stack label { font-size: 0.85rem; color: var(--gray); }
form.stack input, form.stack textarea {
  width: 100%;
  padding: 10px;
  border: 1px solid #d7deea;
  border-radius: 8px;
  font-size: 0.95rem;
  font-family: inherit;
}
form.stack textarea { min-height: 70px; resize: vertical; }

table.admin { width: 100%; border-collapse: collapse; font-size: 0.88rem; }
table.admin th, table.admin td { text-align: left; padding: 8px; border-bottom: 1px solid #e5e9f0; }
table.admin img { width: 48px; height: 36px; object-fit: cover; border-radius: 4px; background: #e5e9f0; }

.row-btns { display: flex; gap: 6px; }
.row-btns button { width: auto; padding: 6px 10px; font-size: 0.8rem; }

.muted { color: var(--gray); font-size: 0.82rem; }
.hidden { display: none !important; }