:root {
  --orange: #F5821F;
  --orange-light: #FFF5ED;
  --charcoal: #1A1A1A;
  --border-soft: #F0E0D0;
  --gray-bg: #FAFAFA;
}

* { box-sizing: border-box; }

body {
  margin: 0;
  font-family: -apple-system, "Segoe UI", "Microsoft JhengHei", "PingFang TC", sans-serif;
  color: var(--charcoal);
  background: #FFFFFF;
}

.topbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 24px;
  height: 56px;
  border-bottom: 1px solid var(--border-soft);
}

.topbar .brand {
  font-weight: 700;
  color: var(--charcoal);
  font-size: 16px;
}

.topbar .brand .accent { color: var(--orange); }

.topbar nav a {
  color: var(--charcoal);
  text-decoration: none;
  margin-left: 20px;
  font-size: 14px;
  padding: 6px 2px;
  border-bottom: 2px solid transparent;
}

.topbar nav a.active,
.topbar nav a:hover {
  color: var(--orange);
  border-bottom: 2px solid var(--orange);
}

.container {
  max-width: 860px;
  margin: 0 auto;
  padding: 28px 20px 60px;
}

.header-bar {
  height: 4px;
  background: linear-gradient(to right, var(--orange), var(--orange) 40%, #FFD4A8 70%, #FFFFFF);
}

h1 { font-size: 22px; margin: 0 0 4px; }
h2 { font-size: 16px; margin: 28px 0 12px; }

.subtitle { color: #666; font-size: 13px; margin-bottom: 20px; }

.card {
  background: #FFFFFF;
  border-top: 3px solid var(--orange);
  box-shadow: 0 1px 6px rgba(0,0,0,0.06);
  padding: 16px 20px;
  margin-bottom: 20px;
}

.section-label {
  display: inline-block;
  border-left: 3px solid var(--orange);
  background: var(--orange-light);
  color: var(--orange);
  text-transform: uppercase;
  font-size: 12px;
  font-weight: 700;
  padding: 4px 10px;
  margin-bottom: 12px;
}

table { width: 100%; border-collapse: collapse; font-size: 14px; }
th, td { text-align: left; padding: 10px 12px; border-bottom: 1px solid var(--border-soft); }
th { border-top: 3px solid var(--orange); background: #FFFFFF; font-weight: 700; }
tbody tr:nth-child(even) { background: var(--gray-bg); }
td.blank { color: #999; font-style: italic; }

.btn {
  display: inline-block;
  background: var(--orange);
  color: #FFFFFF;
  border: none;
  padding: 9px 18px;
  font-size: 14px;
  font-weight: 600;
  border-radius: 4px;
  cursor: pointer;
  text-decoration: none;
}
.btn:hover { background: #d96f15; }
.btn.secondary {
  background: #FFFFFF;
  color: var(--orange);
  border: 1px solid var(--orange);
}
.btn.danger {
  background: #FFFFFF;
  color: #C0392B;
  border: 1px solid #C0392B;
  padding: 5px 10px;
  font-size: 12px;
}
.btn.small {
  padding: 5px 10px;
  font-size: 12px;
}

input[type="date"], input[type="text"], input[type="password"] {
  font-size: 14px;
  padding: 8px 10px;
  border: 1px solid #CCCCCC;
  border-radius: 4px;
  width: 100%;
}

.form-row { display: flex; gap: 10px; align-items: center; margin-bottom: 10px; flex-wrap: wrap; }
.form-row label { font-size: 13px; color: #555; white-space: nowrap; }

.flash {
  padding: 10px 14px;
  border-radius: 4px;
  margin-bottom: 16px;
  font-size: 14px;
}
.flash.success { background: #FFF5ED; border-left: 3px solid var(--orange); color: var(--charcoal); }
.flash.error { background: #FDEDEC; border-left: 3px solid #C0392B; color: #7B241C; }

.tag {
  display: inline-block;
  font-size: 12px;
  padding: 2px 8px;
  border-radius: 10px;
}
.tag.active { background: #FFF5ED; color: var(--orange); }
.tag.inactive { background: #EEEEEE; color: #888; }

.login-wrap {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--gray-bg);
}
.login-card {
  background: #FFFFFF;
  border-top: 3px solid var(--orange);
  box-shadow: 0 1px 10px rgba(0,0,0,0.08);
  padding: 32px 28px;
  width: 320px;
}
.login-card h1 { text-align: center; margin-bottom: 20px; }

.desc-form textarea, .desc-form input {
  width: 100%;
  font-size: 13px;
}
.muted { color: #888; font-size: 12px; }
.muted a { color: var(--orange); }

/* 座位圖 */
.card.wide { max-width: none; }
.seatmap-scroll { overflow-x: auto; }
.seatmap { font-size: 12px; min-width: 720px; }

.room-row { display: flex; gap: 3px; margin-bottom: 3px; }
.room-box {
  background: var(--orange-light);
  color: var(--orange);
  border: 1px solid var(--border-soft);
  text-align: center;
  padding: 10px 4px;
  font-weight: 700;
  border-radius: 4px;
}
.room-box.narrow { flex: 1.4; }
.room-box.wide { flex: 2.2; }
.room-box.mid { flex: 1.2; }
.room-box.electric { flex: 0.9; }

.corridor-full {
  background: #EFEFEF;
  color: #999;
  text-align: center;
  padding: 4px 0;
  font-size: 11px;
  border-radius: 4px;
  margin-bottom: 4px;
}
.corridor-thin {
  background: #EFEFEF;
  color: #999;
  writing-mode: vertical-rl;
  text-align: center;
  padding: 4px 1px;
  font-size: 10px;
  border-radius: 4px;
  flex: 0 0 16px;
  display: flex;
  align-items: center;
  justify-content: center;
}

.main-row { display: flex; gap: 3px; align-items: stretch; }

.zone-block {
  background: #F3F3F3;
  color: #666;
  border: 1px solid var(--border-soft);
  border-radius: 4px;
  flex: 0 0 54px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 700;
  text-align: center;
  padding: 6px 3px;
}
.zone-block.tea { flex: 0 0 66px; }

.seat-col {
  display: flex;
  flex-direction: column;
  gap: 3px;
  flex: 1 1 0;
  min-width: 68px;
}

.seat-box {
  border-radius: 4px;
  padding: 6px 3px;
  text-align: center;
  border: 1px solid var(--border-soft);
}
.seat-box.occupied { background: #FFFFFF; }
.seat-box.excluded { background: #F4F4F4; }
.seat-box.vacant { background: #FAFAFA; border-style: dashed; }

.seat-no { font-size: 9px; color: #999; margin-bottom: 2px; }
.seat-name { font-size: 12px; font-weight: 700; color: var(--charcoal); }
.seat-name.vacant-text { font-weight: 400; color: #AAAAAA; font-size: 10px; }
.seat-tag {
  display: inline-block;
  margin-top: 3px;
  font-size: 10px;
  background: #EEEEEE;
  color: #888;
  padding: 1px 6px;
  border-radius: 8px;
}

.legend { margin-top: 16px; font-size: 12px; color: #666; }
.legend-item { margin-right: 18px; display: inline-flex; align-items: center; gap: 6px; }
.dot { width: 10px; height: 10px; border-radius: 50%; display: inline-block; border: 1px solid var(--border-soft); }
.dot.occupied { background: #FFFFFF; }
.dot.excluded { background: #F4F4F4; }
.dot.vacant { background: #FAFAFA; border-style: dashed; }