* { box-sizing: border-box; }
body {
  font-family: -apple-system, "PingFang TC", "Microsoft JhengHei", sans-serif;
  background: #f4f5f7;
  color: #1a1a1a;
  margin: 0;
  padding: 0;
}
.wrap {
  max-width: 480px;
  margin: 0 auto;
  padding: 16px;
}
.admin-wrap {
  max-width: 900px;
  margin: 0 auto;
  padding: 16px;
}
h1 { font-size: 1.4rem; margin-bottom: 4px; }
h2 { font-size: 1.1rem; margin-top: 24px; }
.card {
  background: #fff;
  border-radius: 10px;
  padding: 16px;
  margin-bottom: 16px;
  box-shadow: 0 1px 3px rgba(0,0,0,0.08);
}
.announcement {
  background: #fff7e6;
  border: 1px solid #ffd580;
  border-radius: 8px;
  padding: 10px 12px;
  margin-bottom: 10px;
  font-size: 0.9rem;
}
label { display: block; margin-top: 12px; font-size: 0.9rem; font-weight: 600; }
input, select, textarea {
  width: 100%;
  padding: 8px;
  margin-top: 4px;
  border: 1px solid #ccc;
  border-radius: 6px;
  font-size: 1rem;
}
button, .btn {
  display: inline-block;
  margin-top: 16px;
  padding: 10px 18px;
  background: #d92c20;
  color: #fff;
  border: none;
  border-radius: 6px;
  font-size: 1rem;
  cursor: pointer;
  text-decoration: none;
}
button:disabled { background: #ccc; cursor: not-allowed; }
.slots { display: flex; flex-wrap: wrap; gap: 8px; margin-top: 8px; }
.slot-btn {
  padding: 8px 12px;
  border: 1px solid #d92c20;
  border-radius: 6px;
  background: #fff;
  color: #d92c20;
  cursor: pointer;
  font-size: 0.9rem;
}
.slot-btn.selected { background: #d92c20; color: #fff; }
.slot-btn:disabled { border-color: #ccc; color: #ccc; cursor: not-allowed; }
.msg { margin-top: 12px; font-size: 0.9rem; }
.msg.error { color: #c0392b; }
.msg.ok { color: #1a7f37; }
table { width: 100%; border-collapse: collapse; margin-top: 8px; }
th, td { text-align: left; padding: 8px; border-bottom: 1px solid #eee; font-size: 0.9rem; }
nav { margin-bottom: 16px; }
nav a { margin-right: 14px; color: #d92c20; text-decoration: none; font-weight: 600; }
.tag { display: inline-block; padding: 2px 8px; border-radius: 10px; font-size: 0.75rem; }
.tag.pending { background: #fff4e5; color: #b26a00; }
.tag.confirmed { background: #e3f2e1; color: #1a7f37; }
.tag.completed { background: #e0e7ff; color: #3949ab; }
.tag.cancelled { background: #f5e0e0; color: #c0392b; }