:root {
  color-scheme: light;
  --bg: #f5f7fb;
  --card: #ffffff;
  --border: #e2e8f0;
  --text: #1a2433;
  --text-muted: #64748b;
  --accent: #2563eb;
  --accent-light: #eff6ff;
  --accent-dark: #1d4ed8;
  --green: #16a34a;
  --green-light: #f0fdf4;
  --amber: #d97706;
  --amber-light: #fffbeb;
  --red: #dc2626;
  --red-light: #fef2f2;
  --radius: 12px;
  --shadow: 0 1px 3px rgba(15, 23, 42, 0.06), 0 1px 2px rgba(15,23,42,0.04);
}
* { box-sizing: border-box; }
body {
  margin: 0;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  background: var(--bg);
  color: var(--text);
  padding: 24px;
  line-height: 1.45;
}
.container { max-width: 920px; margin: 0 auto; }

header {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  flex-wrap: wrap;
  gap: 12px;
  margin-bottom: 20px;
}
header h1 {
  font-size: 26px;
  margin: 0 0 4px 0;
  display: flex;
  align-items: center;
  gap: 10px;
}
header p {
  margin: 0;
  color: var(--text-muted);
  font-size: 13px;
}

.header-actions {
  display: flex;
  flex-direction: column;
  align-items: flex-end;
  gap: 8px;
}
.header-buttons {
  display: flex;
  gap: 8px;
  align-items: center;
  flex-wrap: wrap;
  justify-content: flex-end;
}
.btn {
  border: none;
  border-radius: 8px;
  padding: 9px 16px;
  font-size: 13px;
  font-weight: 600;
  cursor: pointer;
  transition: background 0.15s ease, opacity 0.15s ease;
  white-space: nowrap;
}
.btn-primary { background: var(--accent); color: #fff; }
.btn-primary:hover { background: var(--accent-dark); }
.btn-secondary { background: var(--card); color: var(--text); border: 1px solid var(--border); }
.btn-secondary:hover { background: var(--accent-light); }
.btn-success { background: var(--green-light); color: var(--green); border: 1px solid #bbf7d0; }
.btn-success:hover { background: #dcfce7; }
.btn-sm { padding: 6px 12px; font-size: 12px; }
.btn:disabled { opacity: 0.55; cursor: default; }
.scan-meta { font-size: 12px; color: var(--text-muted); text-align: right; }

/* Gmail connection state */
#gmailStatus {
  font-size: 12px;
  color: var(--text-muted);
}
#gmailStatus.connected { color: var(--green); }

.status-banner {
  display: none;
  background: var(--accent-light);
  border: 1px solid #bfdbfe;
  color: var(--accent-dark);
  border-radius: var(--radius);
  padding: 10px 14px;
  font-size: 13px;
  margin-bottom: 16px;
}
.status-banner.show { display: block; }
.status-banner.error { background: var(--red-light); border-color: #fecaca; color: var(--red); }
.status-banner.success { background: var(--green-light); border-color: #bbf7d0; color: var(--green); }

.hero {
  background: linear-gradient(135deg, var(--accent) 0%, #1e40af 100%);
  color: #fff;
  border-radius: var(--radius);
  padding: 22px 24px;
  margin-bottom: 20px;
  box-shadow: var(--shadow);
}
.hero .label { font-size: 12px; text-transform: uppercase; letter-spacing: 0.06em; opacity: 0.85; margin-bottom: 6px; }
.hero .countdown { font-size: 34px; font-weight: 700; margin-bottom: 8px; }
.hero .route { font-size: 16px; font-weight: 600; }
.hero .details { font-size: 13px; opacity: 0.9; margin-top: 4px; }
.hero.empty { background: var(--card); color: var(--text); border: 1px dashed var(--border); }
.hero.empty .label { color: var(--text-muted); }
.hero.empty .countdown { font-size: 18px; font-weight: 500; color: var(--text-muted); }

/* Flight status pill in hero */
.hero-status {
  display: inline-block;
  margin-top: 8px;
  font-size: 12px;
  font-weight: 700;
  padding: 3px 10px;
  border-radius: 999px;
  background: rgba(255,255,255,0.2);
}
.hero-status.on-time { background: rgba(22,163,74,0.3); }
.hero-status.delayed { background: rgba(217,119,6,0.3); }
.hero-status.cancelled { background: rgba(220,38,38,0.3); }

section { margin-bottom: 24px; }
section h2 {
  font-size: 15px;
  margin: 0 0 10px 0;
  display: flex;
  align-items: center;
  justify-content: space-between;
}
section h2 .count {
  font-size: 12px;
  font-weight: 500;
  color: var(--text-muted);
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 999px;
  padding: 2px 10px;
}

.flight-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
  gap: 12px;
}
.flight-card {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 14px 16px;
  box-shadow: var(--shadow);
  position: relative;
}
.flight-card .date-badge {
  font-size: 11px;
  font-weight: 700;
  color: var(--accent);
  text-transform: uppercase;
  letter-spacing: 0.04em;
  margin-bottom: 6px;
}
.flight-card .route-line {
  font-size: 18px;
  font-weight: 700;
  margin-bottom: 4px;
  display: flex;
  align-items: center;
  gap: 8px;
}
.flight-card .route-line .arrow { color: var(--text-muted); font-weight: 400; }
.flight-card .meta-row {
  font-size: 12.5px;
  color: var(--text-muted);
  margin-top: 2px;
}
.flight-card .badges { margin-top: 8px; display: flex; gap: 6px; flex-wrap: wrap; align-items: center; }
.pill {
  font-size: 11px;
  font-weight: 600;
  padding: 2px 8px;
  border-radius: 999px;
  background: var(--accent-light);
  color: var(--accent-dark);
}
.pill.manual { background: var(--amber-light); color: var(--amber); }
.pill.email { background: var(--green-light); color: var(--green); }
.pill.status-loading { background: #f8fafc; color: var(--text-muted); border: 1px solid var(--border); }
.pill.status-on-time { background: var(--green-light); color: var(--green); }
.pill.status-delayed { background: var(--amber-light); color: var(--amber); }
.pill.status-cancelled { background: var(--red-light); color: var(--red); }
.pill.status-departed { background: #f0f4ff; color: #4338ca; }
.flight-card .delete-btn {
  position: absolute;
  top: 10px;
  right: 10px;
  border: none;
  background: transparent;
  color: var(--text-muted);
  font-size: 16px;
  cursor: pointer;
  line-height: 1;
  padding: 2px 6px;
  border-radius: 6px;
}
.flight-card .delete-btn:hover { background: var(--red-light); color: var(--red); }

.empty-state {
  background: var(--card);
  border: 1px dashed var(--border);
  border-radius: var(--radius);
  padding: 24px;
  text-align: center;
  color: var(--text-muted);
  font-size: 13px;
}

.add-form {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 16px;
  box-shadow: var(--shadow);
}
.add-form .grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(140px, 1fr));
  gap: 10px;
  margin-bottom: 12px;
}
.add-form label {
  display: block;
  font-size: 11px;
  font-weight: 600;
  color: var(--text-muted);
  margin-bottom: 4px;
  text-transform: uppercase;
  letter-spacing: 0.03em;
}
.add-form input {
  width: 100%;
  padding: 7px 9px;
  border: 1px solid var(--border);
  border-radius: 6px;
  font-size: 13px;
  font-family: inherit;
}
.add-form input:focus { outline: 2px solid var(--accent); outline-offset: 1px; }

/* Reminders toggle */
.reminders-row {
  display: flex;
  align-items: center;
  gap: 10px;
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 12px 16px;
  font-size: 13px;
  box-shadow: var(--shadow);
  margin-bottom: 16px;
}
.reminders-row .label-text { flex: 1; }
.reminders-row .label-text strong { display: block; margin-bottom: 2px; }
.reminders-row .label-text span { color: var(--text-muted); font-size: 12px; }
.toggle {
  position: relative;
  width: 40px;
  height: 22px;
  flex-shrink: 0;
}
.toggle input { opacity: 0; width: 0; height: 0; }
.toggle-slider {
  position: absolute;
  inset: 0;
  background: var(--border);
  border-radius: 999px;
  cursor: pointer;
  transition: background 0.2s;
}
.toggle-slider::before {
  content: '';
  position: absolute;
  width: 16px;
  height: 16px;
  background: #fff;
  border-radius: 50%;
  top: 3px;
  left: 3px;
  transition: transform 0.2s;
  box-shadow: 0 1px 3px rgba(0,0,0,0.2);
}
.toggle input:checked + .toggle-slider { background: var(--accent); }
.toggle input:checked + .toggle-slider::before { transform: translateX(18px); }

details > summary {
  cursor: pointer;
  font-size: 13px;
  font-weight: 600;
  color: var(--accent);
  padding: 8px 0;
  list-style: none;
}
details > summary::-webkit-details-marker { display: none; }
details > summary::before { content: "+ "; }
details[open] > summary::before { content: "− "; }

.scan-log {
  font-family: ui-monospace, SFMono-Regular, Menlo, monospace;
  font-size: 11px;
  color: var(--text-muted);
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 10px 12px;
  max-height: 140px;
  overflow-y: auto;
  margin-top: 8px;
  display: none;
}
.scan-log.show { display: block; }
.scan-log div { white-space: pre-wrap; margin-bottom: 2px; }

/* ---- Add flight tabs ---- */
.add-tabs {
  display: flex;
  gap: 6px;
  margin-bottom: 14px;
}
.add-tab {
  padding: 6px 14px;
  border: 1px solid var(--border);
  background: var(--card);
  border-radius: 20px;
  font-size: 13px;
  font-weight: 500;
  color: var(--text-muted);
  cursor: pointer;
  transition: all 0.15s;
}
.add-tab:hover { border-color: var(--accent); color: var(--accent); }
.add-tab.active { background: var(--accent); border-color: var(--accent); color: #fff; }

.tab-hint {
  font-size: 13px;
  color: var(--text-muted);
  margin: 0 0 12px 0;
}

.upload-drop-zone {
  border: 2px dashed var(--border);
  border-radius: var(--radius);
  padding: 28px 16px;
  text-align: center;
  cursor: pointer;
  transition: border-color 0.15s, background 0.15s;
  font-size: 13px;
  color: var(--text-muted);
  background: var(--bg);
}
.upload-drop-zone:hover,
.upload-drop-zone.drag-over {
  border-color: var(--accent);
  background: var(--accent-light);
  color: var(--accent);
}

footer {
  text-align: center;
  font-size: 11.5px;
  color: var(--text-muted);
  margin-top: 32px;
  padding-top: 16px;
  border-top: 1px solid var(--border);
}

@media (max-width: 480px) {
  body { padding: 16px; }
  header h1 { font-size: 22px; }
  .hero .countdown { font-size: 28px; }
  .flight-grid { grid-template-columns: 1fr; }
  .header-buttons { flex-direction: column; align-items: flex-end; }
}