/* SmartScheduler 共享样式 */
:root {
  --primary: #2563eb;
  --primary-dark: #1d4ed8;
  --danger: #dc2626;
  --success: #16a34a;
  --warning: #d97706;
  --bg: #f1f5f9;
  --card: #ffffff;
  --border: #e2e8f0;
  --text: #1e293b;
  --text-muted: #64748b;
  --radius: 10px;
  --shadow: 0 1px 4px rgba(0,0,0,0.08);
}
* { box-sizing: border-box; margin: 0; padding: 0; }

body {
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  background: var(--bg);
  color: var(--text);
  min-height: 100vh;
}

/* ── Header ─────────────────────────────────────────────── */
header {
  background: var(--primary);
  color: white;
  padding: 0 24px;
  height: 56px;
  display: flex;
  align-items: center;
  gap: 16px;
  position: sticky;
  top: 0;
  z-index: 100;
  box-shadow: var(--shadow);
}
header .logo {
  font-weight: 700;
  font-size: 18px;
  letter-spacing: -0.3px;
  display: flex;
  align-items: center;
  gap: 8px;
}
header .logo span { opacity: 0.8; font-weight: 400; font-size: 13px; }
header .nav-links { display: flex; gap: 4px; margin-left: 24px; }
header .nav-link {
  padding: 6px 12px;
  border-radius: 6px;
  color: rgba(255,255,255,0.8);
  text-decoration: none;
  font-size: 13px;
  font-weight: 500;
  transition: background 0.15s, color 0.15s;
}
header .nav-link:hover { background: rgba(255,255,255,0.15); color: white; }
header .nav-link.active { background: rgba(255,255,255,0.2); color: white; }
header .header-right { margin-left: auto; display: flex; align-items: center; gap: 12px; }

/* ── Toolbar ─────────────────────────────────────────────── */
.toolbar {
  background: white;
  border-bottom: 1px solid var(--border);
  padding: 12px 24px;
  display: flex;
  align-items: center;
  gap: 12px;
  flex-wrap: wrap;
}
.toolbar .date-group {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 14px;
  color: var(--text-muted);
}
input[type="date"] {
  padding: 6px 10px;
  border: 1px solid var(--border);
  border-radius: 6px;
  font-size: 14px;
  outline: none;
  transition: border-color 0.15s;
}
input[type="date"]:focus { border-color: var(--primary); }

/* ── Buttons ─────────────────────────────────────────────── */
.btn {
  padding: 6px 14px;
  border: none;
  border-radius: 6px;
  font-size: 13px;
  font-weight: 500;
  cursor: pointer;
  transition: opacity 0.15s, background 0.15s;
  display: inline-flex;
  align-items: center;
  gap: 5px;
  text-decoration: none;
}
.btn:hover { opacity: 0.85; }
.btn-primary { background: var(--primary); color: white; }
.btn-success { background: var(--success); color: white; }
.btn-danger { background: var(--danger); color: white; }
.btn-warning { background: var(--warning); color: white; }
.btn-ghost {
  background: transparent;
  color: var(--text-muted);
  border: 1px solid var(--border);
}
.btn-ghost:hover { background: var(--bg); color: var(--text); }
.btn:disabled { opacity: 0.45; cursor: not-allowed; }

/* ── Stats bar ────────────────────────────────────────────── */
.stats-bar {
  display: flex;
  gap: 16px;
  margin-left: auto;
  font-size: 13px;
}
.stat-item {
  display: flex;
  align-items: center;
  gap: 5px;
  color: var(--text-muted);
}
.stat-item strong { color: var(--text); }
.badge {
  padding: 2px 7px;
  border-radius: 20px;
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 0.3px;
}
.badge-normal  { background: #dcfce7; color: #15803d; }
.badge-delayed { background: #fef3c7; color: #92400e; }
.badge-cancelled { background: #fee2e2; color: #991b1b; }
.badge-pending { background: #e0e7ff; color: #3730a3; }
.badge-running { background: #fef3c7; color: #92400e; }
.badge-done    { background: #dcfce7; color: #15803d; }
.badge-error   { background: #fee2e2; color: #991b1b; }

/* ── Main content ──────────────────────────────────────────── */
.main { max-width: 1200px; margin: 0 auto; padding: 20px 24px; }
.main.full { max-width: 1400px; }

/* ── Empty state ──────────────────────────────────────────── */
.empty-state {
  text-align: center;
  padding: 60px 20px;
  color: var(--text-muted);
}
.empty-state .icon { font-size: 48px; margin-bottom: 12px; opacity: 0.4; }
.empty-state p { font-size: 14px; }

/* ── Table ────────────────────────────────────────────────── */
.table-wrap { overflow-x: auto; }
table {
  width: 100%;
  border-collapse: collapse;
  font-size: 13px;
  background: white;
  border-radius: var(--radius);
  overflow: hidden;
  box-shadow: var(--shadow);
}
thead { background: #f8fafc; }
th {
  padding: 10px 12px;
  text-align: left;
  font-size: 11px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  color: var(--text-muted);
  border-bottom: 1px solid var(--border);
}
td {
  padding: 9px 12px;
  border-bottom: 1px solid var(--border);
  color: var(--text);
}
tr:last-child td { border-bottom: none; }
tr:hover td { background: #f8fafc; }
td.mono { font-family: 'SF Mono', 'Menlo', monospace; font-size: 12px; }

/* ── Cards grid ───────────────────────────────────────────── */
.cards-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
  gap: 12px;
}
.card {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  padding: 14px;
}
.card-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 10px;
}
.card-title { font-size: 14px; font-weight: 600; }
.card-sub { font-size: 12px; color: var(--text-muted); margin-top: 2px; }

/* ── Modal ────────────────────────────────────────────────── */
.modal-overlay {
  display: none;
  position: fixed;
  inset: 0;
  background: rgba(0,0,0,0.45);
  z-index: 200;
  align-items: center;
  justify-content: center;
}
.modal-overlay.open { display: flex; }
.modal {
  background: white;
  border-radius: 12px;
  width: 560px;
  max-width: 95vw;
  max-height: 90vh;
  overflow-y: auto;
  box-shadow: 0 20px 60px rgba(0,0,0,0.2);
}
.modal-header {
  padding: 16px 20px;
  border-bottom: 1px solid var(--border);
  display: flex;
  align-items: center;
  justify-content: space-between;
  font-weight: 600;
  font-size: 15px;
}
.modal-header .close-btn {
  background: none;
  border: none;
  font-size: 20px;
  cursor: pointer;
  color: var(--text-muted);
  line-height: 1;
  padding: 0 4px;
}
.modal-body { padding: 20px; }
.modal-footer {
  padding: 12px 20px;
  border-top: 1px solid var(--border);
  display: flex;
  justify-content: flex-end;
  gap: 8px;
}

.form-group { margin-bottom: 14px; }
.form-group label {
  display: block;
  font-size: 12px;
  font-weight: 600;
  color: var(--text-muted);
  margin-bottom: 4px;
}
.form-group input,
.form-group select,
.form-group textarea {
  width: 100%;
  padding: 7px 10px;
  border: 1px solid var(--border);
  border-radius: 6px;
  font-size: 13px;
  outline: none;
}
.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus { border-color: var(--primary); }
.form-row { display: grid; grid-template-columns: 1fr 1fr; gap: 12px; }
.form-hint { font-size: 11px; color: var(--text-muted); margin-top: 3px; }

/* ── Toast ────────────────────────────────────────────────── */
.toast-container {
  position: fixed;
  bottom: 20px;
  right: 20px;
  z-index: 300;
  display: flex;
  flex-direction: column;
  gap: 8px;
}
.toast {
  padding: 10px 16px;
  background: #1e293b;
  color: white;
  border-radius: 8px;
  font-size: 13px;
  box-shadow: 0 4px 12px rgba(0,0,0,0.2);
  animation: slideIn 0.2s ease;
  max-width: 320px;
}
.toast.success { background: var(--success); }
.toast.error { background: var(--danger); }
.toast.warning { background: var(--warning); }
@keyframes slideIn {
  from { transform: translateX(100%); opacity: 0; }
  to { transform: translateX(0); opacity: 1; }
}

/* ── Filter bar ───────────────────────────────────────────── */
.filter-bar {
  display: flex;
  align-items: center;
  gap: 10px;
  flex-wrap: wrap;
  margin-bottom: 16px;
}
.filter-bar select {
  padding: 6px 10px;
  border: 1px solid var(--border);
  border-radius: 6px;
  font-size: 13px;
  outline: none;
  background: white;
}
.filter-bar select:focus { border-color: var(--primary); }

/* ── Section title ────────────────────────────────────────── */
.section-title {
  font-size: 13px;
  font-weight: 600;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.5px;
  margin-bottom: 10px;
}

/* ── Gantt ────────────────────────────────────────────────── */
.gantt-wrap { overflow-x: auto; background: white; border-radius: var(--radius); box-shadow: var(--shadow); padding: 16px; }
.gantt-row {
  display: flex;
  align-items: center;
  height: 36px;
  border-bottom: 1px solid var(--border);
  font-size: 12px;
}
.gantt-row:last-child { border-bottom: none; }
.gantt-label { width: 160px; flex-shrink: 0; font-weight: 600; padding: 0 8px; }
.gantt-bar {
  position: absolute;
  height: 22px;
  border-radius: 4px;
  font-size: 11px;
  color: white;
  display: flex;
  align-items: center;
  padding: 0 6px;
  white-space: nowrap;
  overflow: hidden;
  cursor: pointer;
}
.gantt-header { display: flex; border-bottom: 2px solid var(--border); height: 40px; align-items: center; }
.gantt-header-cell { width: 60px; flex-shrink: 0; text-align: center; font-size: 11px; color: var(--text-muted); font-weight: 600; }

/* ── Loading ───────────────────────────────────────────────── */
.loading { opacity: 0.6; pointer-events: none; }

/* ── Responsive ───────────────────────────────────────────── */
@media (max-width: 768px) {
  /* ── Header ── */
  header {
    padding: 0 16px;
    height: 52px;
    gap: 10px;
    position: sticky;
    top: 0;
    z-index: 100;
  }
  header .logo { font-size: 15px; flex-shrink: 0; }
  header .logo span { display: none; }
  header .nav-links {
    display: none;
    position: fixed;
    top: 52px; left: 0; right: 0;
    background: #1d4ed8;
    flex-direction: column;
    gap: 2px;
    padding: 10px 16px 16px;
    z-index: 100;
    box-shadow: 0 4px 12px rgba(0,0,0,0.25);
  }
  header .nav-links.open { display: flex; }
  header .nav-link { padding: 10px 12px; border-radius: 8px; font-size: 14px; white-space: nowrap; }
  header .header-right { margin-left: auto; }

  /* ── Hamburger ── */
  .hamburger {
    display: flex;
    flex-direction: column;
    justify-content: center;
    gap: 5px;
    width: 28px; height: 28px;
    background: none; border: none;
    cursor: pointer; padding: 0; flex-shrink: 0;
    position: relative; z-index: 101;
  }
  .hamburger span {
    display: block; width: 100%; height: 2px;
    background: white; border-radius: 2px;
    transition: transform 0.2s, opacity 0.2s;
  }
  .hamburger.open span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
  .hamburger.open span:nth-child(2) { opacity: 0; }
  .hamburger.open span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

  /* ── Toolbar ── */
  .toolbar {
    padding: 10px 12px;
    gap: 8px;
    overflow-x: auto;
    flex-wrap: nowrap;
    -webkit-overflow-scrolling: touch;
    scrollbar-width: none;
  }
  .toolbar::-webkit-scrollbar { display: none; }
  .toolbar .date-group { flex-shrink: 0; font-size: 13px; }
  .toolbar .btn { flex-shrink: 0; }
  .toolbar .stats-bar { flex-shrink: 0; font-size: 12px; gap: 10px; margin-left: 0; }
  .toolbar .legend { flex-shrink: 0; font-size: 11px; gap: 6px; }
  #zoomLabel { font-size: 11px; min-width: 30px; }
  .toolbar [style*="margin-left:auto"] { flex-shrink: 0; font-size: 12px; white-space: nowrap; }

  /* ── Main ── */
  .main { padding: 12px; }
  .main.full { max-width: 100%; }

  /* ── Tables ── */
  .table-wrap { overflow-x: auto; -webkit-overflow-scrolling: touch; }
  table { font-size: 12px; }
  th, td { padding: 8px; white-space: nowrap; }
  /* sticky first column */
  th:first-child, td:first-child { position: sticky; left: 0; background: inherit; z-index: 1; }
  thead th:first-child { background: #f8fafc; z-index: 2; }

  /* ── Cards ── */
  .cards-grid, .pairs-grid { grid-template-columns: 1fr; }

  /* ── Index (sim) page ── */
  .template-chips {
    display: flex;
    flex-wrap: nowrap;
    overflow-x: auto;
    gap: 8px;
    padding-bottom: 6px;
    -webkit-overflow-scrolling: touch;
    scrollbar-width: none;
  }
  .template-chips::-webkit-scrollbar { display: none; }
  .chip { flex-shrink: 0; }

  .pair-card { border-radius: 8px; }
  .pair-card-header {
    padding: 8px 12px;
    flex-wrap: wrap;
    gap: 4px;
  }
  .pair-card-header .seq,
  .pair-card-header .tail,
  .pair-card-header .aircraft { font-size: 11px; }

  /* Stack arrival/departure vertically on mobile */
  .pair-card-body {
    grid-template-columns: 1fr;
    gap: 10px;
    padding: 10px 12px;
  }
  .flight-dir .flight-no { font-size: 14px; }
  .flight-dir .stand,
  .flight-dir .time { font-size: 11px; }

  .pair-card-footer {
    padding: 8px 12px;
    flex-wrap: wrap;
    gap: 6px;
  }
  .pair-card-footer .actions { flex-wrap: wrap; gap: 4px; }
  .btn-sm { font-size: 11px !important; padding: 3px 8px !important; }

  /* Toolbar scroll for index page */
  .toolbar { gap: 6px; }
  .toolbar .btn { padding: 5px 10px; font-size: 12px; }
  .toolbar .stat-item { font-size: 11px; white-space: nowrap; }
  .stats-bar { flex-shrink: 0; }

  /* Section title */
  .section-title { font-size: 11px; margin-bottom: 8px; }

  /* ── Modal ── */
  .modal { width: 100vw; max-width: 100vw; height: 100vh; max-height: 100vh; border-radius: 0; }
  .modal-header { padding: 14px 16px; }
  .modal-body { padding: 16px; }
  .modal-footer { padding: 12px 16px; }
  .form-row { grid-template-columns: 1fr; }
  .form-group { margin-bottom: 12px; }

  /* ── Filter bar ── */
  .filter-bar { gap: 8px; flex-wrap: wrap; }
  .filter-bar select, .filter-bar input { font-size: 12px; }

  /* ── Toast ── */
  .toast-container { bottom: 12px; right: 12px; left: 12px; align-items: center; }
  .toast { max-width: 100%; width: 100%; }

  /* ── Gantt ── */
  .gantt-wrap { padding: 10px; }
}

@media (max-width: 480px) {
  header .logo { font-size: 14px; }
  .toolbar { padding: 8px 10px; gap: 5px; }
  .btn { padding: 5px 10px; font-size: 12px; }
  input[type="date"] { font-size: 12px; padding: 5px 8px; }
  .main { padding: 10px; }
  th, td { padding: 6px; font-size: 11px; }
  .pair-card-body { gap: 8px; padding: 8px 10px; }
  .pair-card-header { padding: 7px 10px; }
  .pair-card-footer { padding: 7px 10px; }
  .chip { font-size: 11px; padding: 3px 8px; }
}