:root {
  --indigo-950: #1c1339;
  --indigo-800: #2f2260;
  --indigo-600: #4a3893;
  --gold-500: #d6a84a;
  --gold-300: #ecc978;
  --teal-500: #2fa8a0;
  --cream-100: #faf7f0;
  --cream-200: #f1ebdd;
  --ink-900: #1f1b2e;
  --ink-600: #52496b;
  --line: #e4dcc9;
  --ok-bg: #e4f5ee;
  --ok-fg: #1c7a5e;
  --caution-bg: #fdf1de;
  --caution-fg: #94620f;
  --flag-bg: #fbe4e4;
  --flag-fg: #a5312b;
  --radius: 14px;
  --shadow: 0 4px 18px rgba(28, 19, 57, 0.08);
}

* { box-sizing: border-box; }

body {
  margin: 0;
  font-family: "Segoe UI", -apple-system, BlinkMacSystemFont, sans-serif;
  background: var(--cream-100);
  color: var(--ink-900);
  line-height: 1.5;
}

.visually-hidden {
  position: absolute;
  width: 1px; height: 1px;
  overflow: hidden;
  clip: rect(0 0 0 0);
}

.app-header {
  background: linear-gradient(135deg, var(--indigo-950), var(--indigo-600));
  color: var(--cream-100);
  padding: 20px 24px;
}

.header-inner {
  max-width: 1080px;
  margin: 0 auto;
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
}

.brand {
  display: flex;
  align-items: center;
  gap: 14px;
}

.brand-mark {
  font-size: 2rem;
  background: rgba(214, 168, 74, 0.18);
  border-radius: 12px;
  padding: 8px 10px;
}

.brand h1 {
  margin: 0;
  font-size: 1.5rem;
  letter-spacing: 0.01em;
}

.tagline {
  margin: 2px 0 0;
  color: var(--gold-300);
  font-size: 0.92rem;
}

.tabs {
  display: flex;
  gap: 8px;
}

.tab-btn {
  background: rgba(250, 247, 240, 0.08);
  border: 1px solid rgba(250, 247, 240, 0.25);
  color: var(--cream-100);
  padding: 9px 16px;
  border-radius: 999px;
  cursor: pointer;
  font-size: 0.92rem;
  transition: background 0.15s ease;
}

.tab-btn:hover { background: rgba(250, 247, 240, 0.18); }

.tab-btn.active {
  background: var(--gold-500);
  border-color: var(--gold-500);
  color: var(--indigo-950);
  font-weight: 600;
}

main {
  max-width: 1080px;
  margin: 28px auto 60px;
  padding: 0 24px;
}

.view { display: none; }
.view.active { display: block; }

.panel {
  background: #fff;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  padding: 22px;
}

.checker-grid, .tickets-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 20px;
  align-items: start;
}

.field-row {
  display: flex;
  flex-direction: column;
  gap: 6px;
  margin-bottom: 16px;
}

.field-row label {
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--ink-600);
}

.field-row select,
.field-row input {
  padding: 10px 12px;
  border: 1px solid var(--line);
  border-radius: 10px;
  font-size: 1rem;
  background: var(--cream-100);
  color: var(--ink-900);
}

.field-row select:focus,
.field-row input:focus {
  outline: 2px solid var(--teal-500);
  outline-offset: 1px;
}

.overall-read {
  display: flex;
  align-items: center;
  gap: 14px;
  padding-bottom: 16px;
  border-bottom: 1px solid var(--line);
  margin-bottom: 16px;
}

.overall-badge {
  font-weight: 700;
  padding: 8px 16px;
  border-radius: 999px;
  font-size: 0.85rem;
  white-space: nowrap;
  background: var(--cream-200);
  color: var(--ink-600);
}

.overall-badge.ok { background: var(--ok-bg); color: var(--ok-fg); }
.overall-badge.caution { background: var(--caution-bg); color: var(--caution-fg); }
.overall-badge.flagged { background: var(--flag-bg); color: var(--flag-fg); }

#overallSummary {
  margin: 0;
  color: var(--ink-600);
  font-size: 0.95rem;
}

.flag-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.flag-item {
  display: flex;
  gap: 10px;
  align-items: flex-start;
  padding: 12px 14px;
  border-radius: 10px;
  background: var(--cream-200);
}

.flag-item.ok { background: var(--ok-bg); }
.flag-item.caution { background: var(--caution-bg); }
.flag-item.flagged { background: var(--flag-bg); }

.flag-status {
  font-size: 0.75rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  padding: 3px 8px;
  border-radius: 6px;
  background: rgba(255,255,255,0.6);
  white-space: nowrap;
}

.flag-text strong { display: block; margin-bottom: 2px; }
.flag-text span { color: var(--ink-600); font-size: 0.9rem; }

.panel-hint {
  margin: 0 0 14px;
  color: var(--ink-600);
  font-size: 0.9rem;
}

.ticket-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  flex-direction: column;
  gap: 10px;
  max-height: 620px;
  overflow-y: auto;
}

.ticket-card {
  width: 100%;
  text-align: left;
  border: 1px solid var(--line);
  background: var(--cream-100);
  border-radius: 12px;
  padding: 12px 14px;
  cursor: pointer;
  font: inherit;
  color: inherit;
  transition: border-color 0.15s ease, transform 0.1s ease;
}

.ticket-card:hover { border-color: var(--teal-500); }
.ticket-card.selected { border-color: var(--indigo-600); background: #f4f1fb; }

.ticket-card-top {
  display: flex;
  justify-content: space-between;
  gap: 8px;
  align-items: baseline;
}

.ticket-card-top strong { font-size: 0.98rem; }

.ticket-meta {
  margin: 4px 0 8px;
  color: var(--ink-600);
  font-size: 0.85rem;
}

.badge-row {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
}

.status-pill, .flag-pill {
  font-size: 0.72rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.03em;
  padding: 3px 8px;
  border-radius: 6px;
}

.status-upcoming { background: #e6edfb; color: #2c4c9b; }
.status-postponed { background: var(--caution-bg); color: var(--caution-fg); }
.status-canceled { background: var(--flag-bg); color: var(--flag-fg); }
.status-completed { background: var(--cream-200); color: var(--ink-600); }
.flag-pill { background: var(--flag-bg); color: var(--flag-fg); }

.ticket-detail-panel { min-height: 300px; }
.empty-state { color: var(--ink-600); }

.detail-header h3 { margin: 0 0 2px; }
.detail-header p { margin: 0 0 16px; color: var(--ink-600); }

.detail-breakdown {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 10px 20px;
  margin-bottom: 16px;
  font-size: 0.92rem;
}

.detail-breakdown div span:first-child {
  display: block;
  color: var(--ink-600);
  font-size: 0.78rem;
  text-transform: uppercase;
  letter-spacing: 0.03em;
}

.letter-btn {
  background: var(--gold-500);
  border: none;
  color: var(--indigo-950);
  font-weight: 700;
  padding: 10px 18px;
  border-radius: 999px;
  cursor: pointer;
  font-size: 0.92rem;
}

.letter-btn:hover { background: var(--gold-300); }
.letter-btn:disabled {
  background: var(--cream-200);
  color: var(--ink-600);
  cursor: not-allowed;
}

.letter-box {
  margin-top: 16px;
}

.letter-box textarea {
  width: 100%;
  min-height: 220px;
  padding: 12px;
  border-radius: 10px;
  border: 1px solid var(--line);
  font-family: inherit;
  font-size: 0.88rem;
  resize: vertical;
  background: var(--cream-100);
}

.copy-btn {
  margin-top: 8px;
  background: var(--teal-500);
  border: none;
  color: #fff;
  padding: 8px 16px;
  border-radius: 999px;
  cursor: pointer;
  font-size: 0.85rem;
}

.copy-btn:hover { opacity: 0.9; }

.app-footer {
  text-align: center;
  color: var(--ink-600);
  font-size: 0.8rem;
  padding: 20px 24px 40px;
}

@media (max-width: 720px) {
  .checker-grid, .tickets-grid, .detail-breakdown {
    grid-template-columns: 1fr;
  }
  .header-inner { flex-direction: column; align-items: flex-start; }
  .tabs { width: 100%; }
  .tab-btn { flex: 1; }
}