:root {
  --primary: #1a3a5c; --primary-light: #2563a8; --primary-dark: #0f2540;
  --accent: #f59e0b; --danger: #dc2626; --success: #16a34a; --warning: #d97706;
  --info: #0891b2; --purple: #7c3aed;
  --bg: #f0f4f8; --card: #fff; --text: #0f172a; --muted: #64748b; --border: #e2e8f0;
  --sidebar-w: 220px; --topbar-h: 58px;
}
* { box-sizing: border-box; margin: 0; padding: 0; }
body { font-family: 'Segoe UI', system-ui, sans-serif; background: var(--bg); color: var(--text); }
#app { display: flex; min-height: 100vh; }

/* ── Sidebar ── */
#sidebar { width: var(--sidebar-w); background: var(--primary-dark); color: #fff; display: flex; flex-direction: column; position: fixed; top: 0; left: 0; height: 100vh; z-index: 100; }
.logo { padding: 20px 18px 14px; border-bottom: 1px solid rgba(255,255,255,.1); }
.logo-icon { font-size: 1.4rem; display: block; margin-bottom: 4px; }
.logo { font-size: 1.2rem; font-weight: 800; letter-spacing: .3px; line-height: 1; }
.logo-sub { display: block; font-size: .68rem; font-weight: 400; opacity: .55; margin-top: 3px; letter-spacing: .3px; }
#sidebar nav { flex: 1; padding: 12px 0; overflow-y: auto; }
#sidebar nav a { display: flex; align-items: center; gap: 11px; padding: 10px 18px; color: rgba(255,255,255,.75); text-decoration: none; font-size: .875rem; border-left: 3px solid transparent; transition: all .15s; }
#sidebar nav a:hover { background: rgba(255,255,255,.07); color: #fff; }
#sidebar nav a.active { background: rgba(255,255,255,.13); color: #fff; border-left-color: var(--accent); }
#sidebar nav a svg { width: 16px; height: 16px; flex-shrink: 0; }
.sidebar-footer { padding: 12px 18px; font-size: .72rem; opacity: .4; border-top: 1px solid rgba(255,255,255,.08); }

/* ── Main ── */
#main { margin-left: var(--sidebar-w); flex: 1; display: flex; flex-direction: column; }
#topbar { background: var(--card); border-bottom: 1px solid var(--border); padding: 0 24px; height: var(--topbar-h); display: flex; align-items: center; justify-content: space-between; position: sticky; top: 0; z-index: 50; }
#topbar h1 { font-size: 1.1rem; font-weight: 700; }
#topbar .topbar-actions { display: flex; gap: 10px; align-items: center; }
#content { padding: 22px 24px; flex: 1; }

/* ── Buttons ── */
.btn { padding: 8px 18px; border-radius: 8px; border: none; cursor: pointer; font-size: .86rem; font-weight: 600; transition: opacity .15s, transform .1s; display: inline-flex; align-items: center; gap: 6px; }
.btn:hover { opacity: .88; } .btn:active { transform: scale(.98); }
.btn-primary { background: var(--primary-light); color: #fff; }
.btn-success { background: var(--success); color: #fff; }
.btn-danger  { background: var(--danger); color: #fff; }
.btn-warning { background: var(--warning); color: #fff; }
.btn-outline { background: transparent; border: 1px solid var(--border); color: var(--text); }
.btn-ghost   { background: transparent; color: var(--muted); border: none; }
.btn-sm { padding: 5px 12px; font-size: .78rem; }
.btn-xs { padding: 3px 8px; font-size: .72rem; }
.btn-icon { padding: 6px; border-radius: 6px; }

/* ── Cards ── */
.card { background: var(--card); border-radius: 10px; border: 1px solid var(--border); margin-bottom: 20px; }
.card-header { padding: 14px 18px 10px; border-bottom: 1px solid var(--border); display: flex; align-items: center; justify-content: space-between; font-weight: 700; font-size: .92rem; }
.card-body { padding: 16px 18px; }

/* ── Stat cards ── */
.stat-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(175px,1fr)); gap: 16px; margin-bottom: 22px; }
.stat-card { background: var(--card); border-radius: 10px; padding: 18px 20px; border: 1px solid var(--border); }
.stat-card .label { font-size: .72rem; color: var(--muted); text-transform: uppercase; letter-spacing: .5px; margin-bottom: 6px; }
.stat-card .value { font-size: 1.7rem; font-weight: 800; line-height: 1; color: var(--primary); }
.stat-card .sub { font-size: .75rem; color: var(--muted); margin-top: 3px; }
.stat-card.green .value { color: var(--success); }
.stat-card.red .value { color: var(--danger); }
.stat-card.amber .value { color: var(--warning); }

/* ── Tables ── */
.table-wrap { overflow-x: auto; }
table { width: 100%; border-collapse: collapse; font-size: .855rem; }
thead th { background: #f8fafc; color: var(--muted); font-size: .71rem; text-transform: uppercase; letter-spacing: .4px; padding: 9px 12px; text-align: left; border-bottom: 2px solid var(--border); white-space: nowrap; }
tbody tr { border-bottom: 1px solid var(--border); transition: background .1s; }
tbody tr:hover { background: #f8fafc; }
tbody td { padding: 9px 12px; vertical-align: middle; }
tr.clickable { cursor: pointer; }
.text-right { text-align: right !important; }
.text-muted { color: var(--muted); font-size: .82rem; }
.money { font-variant-numeric: tabular-nums; }

/* ── Badges ── */
.badge { display: inline-block; padding: 2px 8px; border-radius: 20px; font-size: .71rem; font-weight: 700; white-space: nowrap; }
.badge-paid     { background: #dcfce7; color: #166534; }
.badge-unpaid   { background: #fee2e2; color: #991b1b; }
.badge-pending  { background: #fef3c7; color: #78350f; }
.badge-dispatch { background: #dbeafe; color: #1e40af; }
.badge-enroute  { background: #ede9fe; color: #5b21b6; }
.badge-vip      { background: #fdf2f8; color: #9d174d; }

/* ── Filters ── */
.filters { display: flex; gap: 8px; flex-wrap: wrap; align-items: center; margin-bottom: 16px; }
.filters input, .filters select { border: 1px solid var(--border); border-radius: 7px; padding: 7px 11px; font-size: .855rem; background: var(--card); color: var(--text); outline: none; }
.filters input:focus, .filters select:focus { border-color: var(--primary-light); box-shadow: 0 0 0 2px rgba(37,99,168,.15); }
.filters input[type=text] { min-width: 200px; }

/* ── Pagination ── */
.pagination { display: flex; gap: 4px; align-items: center; justify-content: flex-end; margin-top: 12px; font-size: .84rem; }
.pagination button { border: 1px solid var(--border); background: var(--card); padding: 5px 11px; border-radius: 6px; cursor: pointer; }
.pagination button:disabled { opacity: .35; cursor: default; }
.pagination button.active { background: var(--primary-light); color: #fff; border-color: var(--primary-light); }
.page-info { color: var(--muted); font-size: .78rem; margin-right: 6px; }

/* ── Modals ── */
.overlay { display: none; position: fixed; inset: 0; background: rgba(0,0,0,.5); z-index: 300; align-items: flex-start; justify-content: center; padding-top: 30px; overflow-y: auto; }
.overlay.open { display: flex; }
.modal { background: var(--card); border-radius: 14px; width: 820px; max-width: 96vw; box-shadow: 0 24px 60px rgba(0,0,0,.28); margin-bottom: 30px; }
.modal-sm { width: 480px; }
.modal-lg { width: 960px; }
.modal-header { padding: 18px 24px 14px; border-bottom: 1px solid var(--border); display: flex; align-items: center; justify-content: space-between; }
.modal-header h2 { font-size: 1.05rem; font-weight: 700; }
.modal-close { background: none; border: none; font-size: 1.3rem; cursor: pointer; color: var(--muted); padding: 2px 6px; border-radius: 4px; }
.modal-close:hover { background: #f1f5f9; }
.modal-body { padding: 20px 24px; max-height: 75vh; overflow-y: auto; }
.modal-footer { padding: 14px 24px; border-top: 1px solid var(--border); display: flex; justify-content: flex-end; gap: 10px; }

/* ── Forms ── */
.form-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 14px 18px; }
.form-grid-3 { grid-template-columns: 1fr 1fr 1fr; }
.form-full { grid-column: 1 / -1; }
.form-group { display: flex; flex-direction: column; gap: 4px; }
.form-group label { font-size: .73rem; font-weight: 600; color: var(--muted); text-transform: uppercase; letter-spacing: .4px; }
.form-group input, .form-group select, .form-group textarea { border: 1px solid var(--border); border-radius: 7px; padding: 8px 11px; font-size: .88rem; background: #fff; color: var(--text); outline: none; transition: border-color .15s; }
.form-group input:focus, .form-group select:focus, .form-group textarea:focus { border-color: var(--primary-light); box-shadow: 0 0 0 2px rgba(37,99,168,.12); }
.form-group textarea { resize: vertical; min-height: 60px; }
.form-section { font-size: .72rem; font-weight: 700; text-transform: uppercase; letter-spacing: .6px; color: var(--primary-light); margin: 18px 0 10px; padding-bottom: 6px; border-bottom: 2px solid #e0eaf5; }
.form-total { background: #f0f7ff; border-radius: 8px; padding: 14px 16px; display: flex; justify-content: space-between; align-items: center; font-weight: 700; }
.form-total .total-amount { font-size: 1.5rem; color: var(--primary); }

/* ── Dispatch board ── */
.dispatch-date-bar { display: flex; align-items: center; gap: 12px; margin-bottom: 20px; }
.dispatch-date-bar input[type=date] { border: 1px solid var(--border); border-radius: 8px; padding: 8px 14px; font-size: .9rem; }
.dispatch-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(320px,1fr)); gap: 16px; }
.trip-card { background: var(--card); border-radius: 10px; border: 1px solid var(--border); overflow: hidden; border-left: 4px solid var(--muted); transition: box-shadow .15s; }
.trip-card:hover { box-shadow: 0 4px 20px rgba(0,0,0,.1); }
.trip-card.status-PE { border-left-color: var(--warning); }
.trip-card.status-DS { border-left-color: var(--info); }
.trip-card.status-EN { border-left-color: var(--purple); }
.trip-card.status-CO { border-left-color: var(--success); }
.trip-card.status-CA { border-left-color: var(--danger); }
.trip-card-header { padding: 12px 14px 8px; display: flex; justify-content: space-between; align-items: flex-start; border-bottom: 1px solid var(--border); }
.trip-card-time { font-size: 1.2rem; font-weight: 800; color: var(--primary); line-height: 1; }
.trip-card-num { font-size: .72rem; color: var(--muted); margin-top: 2px; }
.trip-card-body { padding: 10px 14px; }
.trip-card-passenger { font-weight: 700; font-size: .96rem; }
.trip-card-route { font-size: .8rem; color: var(--muted); margin-top: 6px; }
.trip-card-route div { padding: 2px 0; }
.trip-card-meta { display: flex; gap: 10px; flex-wrap: wrap; margin-top: 8px; font-size: .77rem; color: var(--muted); }
.trip-card-actions { padding: 8px 14px; background: #f8fafc; border-top: 1px solid var(--border); display: flex; gap: 6px; flex-wrap: wrap; }

/* ── Routing stops ── */
.routing-list { display: flex; flex-direction: column; gap: 6px; }
.routing-stop { display: grid; grid-template-columns: 90px 1fr auto; gap: 8px; align-items: center; }
.routing-stop input { border: 1px solid var(--border); border-radius: 6px; padding: 6px 9px; font-size: .85rem; width: 100%; }

/* ── Misc ── */
.expiry-warn { color: var(--danger) !important; font-weight: 700; }
.loading { text-align: center; padding: 40px; color: var(--muted); }
.empty { text-align: center; padding: 40px; color: var(--muted); font-style: italic; }
.alert { padding: 12px 16px; border-radius: 8px; margin-bottom: 16px; font-size: .87rem; }
.alert-danger  { background: #fee2e2; color: #991b1b; border: 1px solid #fca5a5; }
.alert-success { background: #dcfce7; color: #166534; border: 1px solid #86efac; }
.section-label { font-size: .72rem; text-transform: uppercase; letter-spacing: .5px; color: var(--muted); font-weight: 700; margin: 16px 0 8px; }

/* ── Toast notifications ── */
.toast { position: fixed; bottom: 24px; right: 24px; padding: 12px 20px; border-radius: 10px; font-size: .88rem; font-weight: 600; color: #fff; z-index: 1000; transform: translateY(20px); opacity: 0; transition: all .25s; pointer-events: none; }
.toast.show { transform: translateY(0); opacity: 1; }
.toast-success { background: var(--success); }
.toast-error   { background: var(--danger); }
.toast-info    { background: var(--info); }

/* ── Detail fields ── */
.detail-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }
.detail-field { margin-bottom: 10px; }
.detail-field label { display: block; font-size: .69rem; color: var(--muted); text-transform: uppercase; letter-spacing: .4px; margin-bottom: 2px; }
.detail-field span { font-size: .9rem; font-weight: 500; }

@media (max-width: 760px) {
  /* Hide sidebar on mobile */
  #sidebar { transform: translateX(-100%); }
  #main { margin-left: 0; }
  .form-grid { grid-template-columns: 1fr; }
  .detail-grid { grid-template-columns: 1fr; }
  .dispatch-grid { grid-template-columns: 1fr; }

  /* ── Mobile dispatch board ── */
  #topbar { padding: 0 12px; }
  #topbar h1 { font-size: .95rem; }
  #content { padding: 12px; }

  /* Trip cards — full width, compact */
  .trip-card { border-radius: 8px; }
  .trip-card-time { font-size: 1.4rem; }
  .trip-card-passenger { font-size: 1rem; }
  .trip-card-route { font-size: .85rem; }
  .trip-card-meta { font-size: .8rem; gap: 8px; }

  /* Action buttons — bigger touch targets, full row */
  .trip-card-actions {
    padding: 10px 12px;
    gap: 8px;
    display: grid;
    grid-template-columns: 1fr 1fr;
  }
  .trip-card-actions .btn {
    padding: 9px 6px;
    font-size: .82rem;
    justify-content: center;
    text-align: center;
  }
  /* Full-width buttons */
  .trip-card-actions .btn-outline:first-child {
    grid-column: 1 / -1;
  }

  /* Dispatch date bar */
  .dispatch-date-bar { gap: 8px; flex-wrap: wrap; }
  .dispatch-date-bar input[type=date] { font-size: .85rem; padding: 6px 10px; }

  /* Topbar actions on mobile */
  .topbar-actions { gap: 6px; }
  .topbar-actions .btn-sm { padding: 6px 10px; font-size: .78rem; }

  /* Show hamburger on ALL pages */
  #hamburger-btn { display: block !important; }
  #menu-btn { display: block !important; }

  /* Sidebar slides in when open */
  #sidebar { transition: transform .25s ease; }
  #sidebar.mobile-open { transform: translateX(0) !important; z-index: 200; box-shadow: 4px 0 24px rgba(0,0,0,.3); }
  #mobile-menu-overlay.open { display: block !important; }

  /* Reservations table — horizontal scroll on mobile */
  .table-wrap { overflow-x: auto; -webkit-overflow-scrolling: touch; }
  table { min-width: 600px; }
  tbody td { white-space: nowrap; }

  /* Modals full screen on mobile */
  .overlay { padding-top: 0; align-items: flex-end; }
  .modal { border-radius: 14px 14px 0 0; max-height: 92vh; margin-bottom: 0; width: 100% !important; max-width: 100% !important; }
  .modal-sm, .modal-lg { width: 100% !important; }
}