/* ── Variables ─────────────────────────────────────────────────── */
:root {
  --primary:       #0A66C2;
  --primary-dark:  #004182;
  --primary-light: #E8F0FE;
  --bg:            #F3F2EF;
  --sidebar-bg:    #FFFFFF;
  --card-bg:       #FFFFFF;
  --text:          #000000;
  --text-muted:    #5F6163;
  --success:       #057642;
  --warning:       #F5C400;
  --danger:        #D11124;
  --info:          #0A66C2;
  --border:        #E0E0E0;
  --sidebar-w:     220px;
  --radius:        8px;
  --shadow:        0 1px 4px rgba(0,0,0,.1);
}

/* ── Reset ─────────────────────────────────────────────────────── */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

body {
  font-family: Inter, Arial, Helvetica, sans-serif;
  font-size: 14px;
  color: var(--text);
  background: var(--bg);
  line-height: 1.5;
}

a { color: var(--primary); text-decoration: none; }
a:hover { text-decoration: underline; }

/* ── Layout ────────────────────────────────────────────────────── */
.layout {
  display: flex;
  min-height: 100vh;
}

/* ── Sidebar ───────────────────────────────────────────────────── */
.sidebar {
  width: var(--sidebar-w);
  background: var(--sidebar-bg);
  border-right: 1px solid var(--border);
  display: flex;
  flex-direction: column;
  position: fixed;
  top: 0; left: 0; bottom: 0;
  overflow-y: auto;
}

.sidebar-brand {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 20px 16px;
  border-bottom: 1px solid var(--border);
}
.brand-icon { font-size: 22px; }
.brand-name { font-size: 18px; font-weight: 700; color: var(--primary); }

.sidebar-nav {
  flex: 1;
  padding: 12px 0;
}

.nav-item {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 10px 16px;
  color: var(--text-muted);
  font-weight: 500;
  border-radius: 0;
  transition: background .15s, color .15s;
  position: relative;
}
.nav-item:hover { background: var(--primary-light); color: var(--primary); text-decoration: none; }
.nav-item.active {
  color: var(--primary);
  background: var(--primary-light);
  border-left: 3px solid var(--primary);
}
.nav-icon { font-size: 16px; width: 20px; text-align: center; }

.nav-divider {
  height: 1px;
  background: var(--border);
  margin: 8px 0;
}

.badge {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  background: var(--danger);
  color: #fff;
  border-radius: 10px;
  padding: 1px 7px;
  font-size: 11px;
  font-weight: 600;
  margin-left: auto;
}

.sidebar-footer {
  padding: 12px 16px;
  border-top: 1px solid var(--border);
}
.user-info { display: flex; align-items: center; gap: 10px; margin-bottom: 8px; }
.avatar {
  width: 34px; height: 34px;
  background: var(--primary);
  color: #fff;
  border-radius: 50%;
  display: flex; align-items: center; justify-content: center;
  font-weight: 700; font-size: 15px;
  flex-shrink: 0;
}
.user-name { font-weight: 600; font-size: 13px; }
.user-role { font-size: 11px; color: var(--text-muted); }
.btn-logout {
  display: block;
  text-align: center;
  padding: 6px;
  border-radius: var(--radius);
  border: 1px solid var(--border);
  color: var(--text-muted);
  font-size: 13px;
}
.btn-logout:hover { background: #fef2f2; color: var(--danger); border-color: var(--danger); text-decoration: none; }

/* ── Main Content ──────────────────────────────────────────────── */
.main-content {
  margin-left: var(--sidebar-w);
  flex: 1;
  display: flex;
  flex-direction: column;
  min-height: 100vh;
}

.topbar {
  background: #fff;
  border-bottom: 1px solid var(--border);
  padding: 14px 24px;
  position: sticky; top: 0; z-index: 10;
}
.page-title { font-size: 18px; font-weight: 700; }

.content-area { padding: 24px; flex: 1; }

/* ── Alerts ────────────────────────────────────────────────────── */
.alert {
  padding: 10px 16px;
  border-radius: var(--radius);
  margin-bottom: 16px;
  font-size: 13px;
  font-weight: 500;
}
.alert-success { background: #d1fae5; color: #065f46; }
.alert-danger   { background: #fee2e2; color: #991b1b; }
.alert-warning  { background: #fef9c3; color: #92400e; }
.alert-info     { background: #dbeafe; color: #1e40af; }

/* ── Cards ─────────────────────────────────────────────────────── */
.card {
  background: var(--card-bg);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  margin-bottom: 20px;
  overflow: hidden;
}
.card-header {
  display: flex; align-items: center; justify-content: space-between;
  padding: 14px 16px;
  border-bottom: 1px solid var(--border);
  background: #fafafa;
}
.card-title { font-size: 15px; font-weight: 600; }

/* ── Grids ─────────────────────────────────────────────────────── */
.grid-2 { display: grid; grid-template-columns: 1fr 1fr; gap: 20px; }
.stats-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 16px; margin-bottom: 20px; }

@media (max-width: 900px) {
  .grid-2 { grid-template-columns: 1fr; }
  .stats-grid { grid-template-columns: 1fr 1fr; }
}

/* ── Stat Cards ────────────────────────────────────────────────── */
.stat-card {
  background: var(--card-bg);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 20px;
  text-align: center;
  box-shadow: var(--shadow);
}
.stat-value { font-size: 32px; font-weight: 700; color: var(--primary); }
.stat-label { font-size: 12px; color: var(--text-muted); margin-top: 4px; font-weight: 500; }

/* ── Tables ────────────────────────────────────────────────────── */
.table { width: 100%; border-collapse: collapse; }
.table th, .table td {
  padding: 10px 14px;
  text-align: left;
  border-bottom: 1px solid var(--border);
  font-size: 13px;
}
.table th { font-weight: 600; color: var(--text-muted); background: #fafafa; font-size: 12px; text-transform: uppercase; letter-spacing: .5px; }
.table tbody tr:last-child td { border-bottom: none; }
.table tbody tr:hover { background: #fafafe; }
.text-muted { color: var(--text-muted); }

/* ── Badges ────────────────────────────────────────────────────── */
.badge-success { background: #d1fae5; color: var(--success); padding: 2px 10px; border-radius: 12px; font-size: 11px; font-weight: 600; display: inline-block; }
.badge-warning { background: #fef9c3; color: #92400e; padding: 2px 10px; border-radius: 12px; font-size: 11px; font-weight: 600; display: inline-block; }
.badge-danger  { background: #fee2e2; color: var(--danger); padding: 2px 10px; border-radius: 12px; font-size: 11px; font-weight: 600; display: inline-block; }
.badge-info    { background: var(--primary-light); color: var(--primary); padding: 2px 10px; border-radius: 12px; font-size: 11px; font-weight: 600; display: inline-block; }
.badge-primary { background: var(--primary); color: #fff; padding: 2px 10px; border-radius: 12px; font-size: 11px; font-weight: 600; display: inline-block; }

.badge-role { padding: 2px 10px; border-radius: 12px; font-size: 11px; font-weight: 600; display: inline-block; }
.badge-admin   { background: #ede9fe; color: #5b21b6; }
.badge-manager { background: #dbeafe; color: #1e40af; }
.badge-user    { background: #d1fae5; color: #065f46; }

/* ── Buttons ───────────────────────────────────────────────────── */
.btn {
  display: inline-flex; align-items: center; gap: 6px;
  padding: 8px 16px;
  border-radius: var(--radius);
  font-size: 14px; font-weight: 600;
  cursor: pointer; border: none;
  transition: background .15s, box-shadow .15s;
  text-decoration: none;
}
.btn:hover { text-decoration: none; }
.btn-primary { background: var(--primary); color: #fff; }
.btn-primary:hover { background: var(--primary-dark); color: #fff; }
.btn-success { background: var(--success); color: #fff; }
.btn-success:hover { background: #045c35; color: #fff; }
.btn-danger  { background: var(--danger); color: #fff; }
.btn-danger:hover  { background: #a50e1d; color: #fff; }
.btn-outline { background: #fff; color: var(--primary); border: 1.5px solid var(--primary); }
.btn-outline:hover { background: var(--primary-light); }
.btn-sm { padding: 5px 12px; font-size: 12px; }
.btn-block { width: 100%; justify-content: center; }

/* ── Forms ─────────────────────────────────────────────────────── */
.form-group { margin-bottom: 14px; padding: 0 16px; }
.form-row { display: grid; grid-template-columns: 1fr 1fr; gap: 0 12px; }
.form-label { display: block; font-size: 12px; font-weight: 600; color: var(--text-muted); margin-bottom: 4px; text-transform: uppercase; letter-spacing: .4px; }
.form-control {
  width: 100%;
  padding: 9px 12px;
  border: 1.5px solid var(--border);
  border-radius: var(--radius);
  font-size: 14px;
  font-family: inherit;
  color: var(--text);
  background: #fff;
  transition: border-color .15s;
}
.form-control:focus { outline: none; border-color: var(--primary); box-shadow: 0 0 0 3px rgba(10,102,194,.12); }
.form-control-sm {
  padding: 5px 8px; font-size: 12px;
  border: 1.5px solid var(--border); border-radius: var(--radius);
  font-family: inherit; background: #fff;
}
.form-group .btn { margin: 0 16px 16px; }

/* ── Login ─────────────────────────────────────────────────────── */
.login-page {
  min-height: 100vh;
  display: flex; align-items: center; justify-content: center;
  background: var(--bg);
}
.login-card {
  background: #fff;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 40px 36px;
  width: 100%; max-width: 400px;
  box-shadow: 0 4px 20px rgba(0,0,0,.08);
}
.login-brand { text-align: center; margin-bottom: 28px; }
.brand-icon-lg { font-size: 40px; }
.login-title { font-size: 24px; font-weight: 700; color: var(--primary); margin-top: 8px; }
.login-subtitle { color: var(--text-muted); font-size: 13px; }
.login-card .form-group { padding: 0; }
.login-card .btn { margin: 16px 0 0; }

/* ── AI Optimize ───────────────────────────────────────────────── */
.ai-result-card { border: 2px solid var(--primary); }
.ai-meta { display: flex; gap: 24px; padding: 14px 16px; background: var(--primary-light); }
.ai-meta-item { display: flex; flex-direction: column; gap: 2px; }
.ai-meta-label { font-size: 11px; color: var(--text-muted); font-weight: 600; text-transform: uppercase; }
.ai-meta-value { font-size: 16px; font-weight: 700; color: var(--primary); }
.ai-reasoning { padding: 12px 16px; background: #fafafa; border-top: 1px solid var(--border); font-size: 13px; color: var(--text-muted); }
.ai-reasoning-label { font-size: 11px; font-weight: 700; text-transform: uppercase; color: var(--text-muted); margin-bottom: 4px; }
.sequence-list { list-style: none; padding: 0 16px 12px; }
.sequence-item {
  padding: 10px 14px; margin-bottom: 6px;
  background: #f8faff; border: 1px solid var(--border);
  border-left: 3px solid var(--primary);
  border-radius: var(--radius);
  font-size: 13px;
  counter-increment: seq;
}

/* ── Trip Detail ───────────────────────────────────────────────── */
.detail-grid { padding: 4px 0; }
.detail-row {
  display: flex; justify-content: space-between;
  padding: 10px 16px;
  border-bottom: 1px solid var(--border);
  font-size: 13px;
}
.detail-row:last-child { border-bottom: none; }
.detail-label { font-weight: 600; color: var(--text-muted); }
.seq-badge {
  display: inline-flex; align-items: center; justify-content: center;
  width: 22px; height: 22px;
  background: var(--primary); color: #fff;
  border-radius: 50%; font-size: 11px; font-weight: 700;
}

/* ── Empty State ───────────────────────────────────────────────── */
.empty-state {
  display: flex; flex-direction: column; align-items: center;
  justify-content: center; padding: 48px 24px; text-align: center;
  color: var(--text-muted);
}
.empty-icon { font-size: 48px; margin-bottom: 16px; }

/* ── Pagination ────────────────────────────────────────────────── */
.pagination {
  display: flex; align-items: center; gap: 4px;
  padding: 12px 16px; border-top: 1px solid var(--border);
  flex-wrap: wrap;
}
.page-btn {
  display: inline-flex; align-items: center; justify-content: center;
  min-width: 32px; height: 32px; padding: 0 8px;
  border: 1.5px solid var(--border); border-radius: 6px;
  font-size: 13px; font-weight: 500; color: var(--text-muted);
  background: #fff; cursor: pointer; text-decoration: none;
  transition: background .12s, border-color .12s;
}
.page-btn:hover { background: var(--primary-light); border-color: var(--primary); color: var(--primary); text-decoration: none; }
.page-btn.active { background: var(--primary); border-color: var(--primary); color: #fff; }
.page-btn.disabled { opacity: .4; cursor: default; pointer-events: none; }
.page-info { margin-left: auto; font-size: 12px; color: var(--text-muted); }

/* ── Modals ────────────────────────────────────────────────────── */
.modal-overlay {
  display: none;
  position: fixed; inset: 0;
  background: rgba(0,0,0,.45);
  z-index: 1000;
  align-items: center; justify-content: center;
}
.modal-overlay.open { display: flex; }
.modal-box {
  background: #fff; border-radius: var(--radius);
  box-shadow: 0 8px 40px rgba(0,0,0,.18);
  width: 100%; max-width: 480px;
  max-height: 90vh; overflow-y: auto;
}
.modal-header {
  display: flex; align-items: center; justify-content: space-between;
  padding: 14px 16px; border-bottom: 1px solid var(--border);
  position: sticky; top: 0; background: #fff; z-index: 1;
}
.modal-header h3 { font-size: 15px; font-weight: 600; }
.modal-close {
  background: none; border: none; font-size: 18px;
  cursor: pointer; color: var(--text-muted); line-height: 1;
}
.modal-close:hover { color: var(--danger); }

/* ── Search bar (topbar) ───────────────────────────────────────── */
.topbar-search {
  display: flex; align-items: center; gap: 0;
  background: var(--bg); border: 1.5px solid var(--border);
  border-radius: 20px; overflow: hidden;
  transition: border-color .15s, box-shadow .15s;
}
.topbar-search:focus-within {
  border-color: var(--primary);
  box-shadow: 0 0 0 3px rgba(10,102,194,.12);
}
.search-input {
  border: none; outline: none; background: transparent;
  padding: 6px 12px; font-size: 13px; font-family: inherit;
  color: var(--text); width: 200px;
}
.search-input::placeholder { color: var(--text-muted); }
.search-btn {
  border: none; background: transparent; padding: 6px 12px;
  cursor: pointer; color: var(--text-muted); font-size: 15px;
  transition: color .12s;
}
.search-btn:hover { color: var(--primary); }

/* ── Notifications ─────────────────────────────────────────────── */
.notification-item {
  display: flex; align-items: flex-start; gap: 12px;
  padding: 14px 16px; border-bottom: 1px solid var(--border);
}
.notification-item:last-child { border-bottom: none; }
.notification-item--full { width: 100%; }
.notification-unread {
  background: var(--primary-light);
  border-left: 3px solid var(--primary);
}
.notification-icon { font-size: 20px; flex-shrink: 0; margin-top: 2px; }
.notification-msg { font-size: 14px; font-weight: 500; color: var(--text); }
.notification-time { font-size: 12px; color: var(--text-muted); }

/* ── Location boxes (request detail) ──────────────────────────── */
.location-box {
  background: var(--bg); border: 1.5px solid var(--border);
  border-radius: var(--radius); padding: 12px 14px;
}
.location-label {
  font-size: 11px; font-weight: 600; text-transform: uppercase;
  letter-spacing: .06em; color: var(--text-muted); margin-bottom: 4px;
}
.location-name { font-size: 14px; font-weight: 600; color: var(--text); }
.location-coords { font-size: 12px; color: var(--text-muted); margin-top: 2px; }

/* ── Grid-3 ────────────────────────────────────────────────────── */
.grid-3 {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 16px;
}

/* ── Grid-1-3 (form | table) ───────────────────────────────────── */
.grid-1-3 {
  display: grid;
  grid-template-columns: 1fr 3fr;
  gap: 16px;
  align-items: start;
}

/* ── Grid-3-1 (table | form) ───────────────────────────────────── */
.grid-3-1 {
  display: grid;
  grid-template-columns: 3fr 1fr;
  gap: 16px;
  align-items: start;
}

/* ── Date filter bar (optimize) ────────────────────────────────── */
.date-filter-bar {
  display: flex; align-items: center; gap: 6px; flex-wrap: wrap;
}

/* ── Role badge colours ────────────────────────────────────────── */
.badge-role.badge-admin    { background: #fef9c3; color: #92400e; }
.badge-role.badge-manager  { background: #e0e7ff; color: #3730a3; }
.badge-role.badge-employee { background: #d1fae5; color: #057642; }

/* ── Report tabs ───────────────────────────────────────────────── */
.report-tab-bar {
  display: flex; gap: 0; border-bottom: 2px solid var(--border); margin-bottom: 20px;
}
.report-tab-btn {
  padding: 9px 18px; font-size: 13px; font-weight: 600;
  color: var(--text-muted); background: none; border: none;
  border-bottom: 2px solid transparent; margin-bottom: -2px;
  cursor: pointer; transition: color .15s, border-color .15s;
}
.report-tab-btn:hover { color: var(--primary); }
.report-tab-btn.active { color: var(--primary); border-bottom-color: var(--primary); }
.report-tab-panel { display: none; }
.report-tab-panel.active { display: block; }

/* ── Report filter bar ─────────────────────────────────────────── */
.report-filter-bar {
  display: flex; align-items: center; gap: 8px; flex-wrap: wrap;
  background: var(--card-bg); border: 1px solid var(--border);
  border-radius: var(--radius); padding: 12px 16px; margin-bottom: 16px;
}