/* RouteSync — Professional SaaS Design System */
:root {
  --primary: #2563EB;
  --primary-hover: #1D4ED8;
  --secondary: #1E293B;
  --success: #22C55E;
  --warning: #F59E0B;
  --danger: #EF4444;
  --bg: #F8FAFC;
  --surface: #FFFFFF;
  --text: #0F172A;
  --muted: #64748B;
  --border: #E2E8F0;
  --shadow-sm: 0 1px 2px rgba(15, 23, 42, 0.06);
  --shadow-md: 0 4px 16px rgba(15, 23, 42, 0.08);
  --shadow-lg: 0 12px 40px rgba(15, 23, 42, 0.12);
  --radius: 12px;
  --radius-lg: 16px;
  --font: system-ui, -apple-system, 'Segoe UI', Roboto, sans-serif;
  --map-h: min(72vh, 680px);
  --transition: 0.2s ease;
}

*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html, body, #app { min-height: 100%; }
body {
  font-family: var(--font);
  color: var(--text);
  background: var(--bg);
  line-height: 1.5;
  -webkit-font-smoothing: antialiased;
}

.container { width: min(1200px, 94%); margin: 0 auto; }
.hidden { display: none !important; }
.muted { color: var(--muted); }
.small { font-size: 0.875rem; }
.mono { font-family: ui-monospace, Consolas, monospace; }

/* Header */
.site-header {
  position: sticky; top: 0; z-index: 100;
  background: rgba(255,255,255,0.9);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border);
}
.header-inner { display: flex; align-items: center; justify-content: space-between; padding: 14px 0; }
.brand { display: flex; align-items: center; gap: 12px; text-decoration: none; color: inherit; }
.logo-badge {
  width: 42px; height: 42px; border-radius: 10px;
  background: linear-gradient(135deg, var(--primary), #3B82F6);
  color: #fff; font-weight: 800; display: grid; place-items: center;
}
.brand-text { font-weight: 700; font-size: 1.125rem; }
.brand-text span { color: var(--primary); }
.nav-btn {
  padding: 8px 14px; border-radius: 8px; border: 1px solid var(--border);
  background: var(--surface); cursor: pointer; font-weight: 500; transition: var(--transition);
}
.nav-btn:hover, .nav-btn.active { background: var(--primary); color: #fff; border-color: var(--primary); }

/* Pages */
.page { display: none; padding-bottom: 48px; animation: fadeIn 0.25s ease; }
.page.active { display: block; }
@keyframes fadeIn { from { opacity: 0; transform: translateY(6px); } to { opacity: 1; transform: none; } }

.page-header { display: flex; align-items: center; gap: 16px; padding: 20px 0 12px; }
.page-header h2 { font-size: 1.5rem; font-weight: 700; }

/* Hero */
.hero { padding: 40px 0 24px; }
.hero-content { max-width: 640px; margin-bottom: 32px; }
.pill {
  display: inline-block; padding: 4px 12px; border-radius: 999px;
  background: #EFF6FF; color: var(--primary); font-size: 0.8125rem; font-weight: 600; margin-bottom: 12px;
}
.hero-title { font-size: clamp(1.75rem, 4vw, 2.75rem); font-weight: 800; letter-spacing: -0.02em; line-height: 1.15; margin-bottom: 12px; }
.hero-sub { color: var(--muted); font-size: 1.0625rem; max-width: 520px; }

.role-cards { display: grid; grid-template-columns: repeat(auto-fit, minmax(260px, 1fr)); gap: 20px; }
.role-card {
  background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius-lg);
  padding: 24px; box-shadow: var(--shadow-sm); transition: var(--transition);
  display: flex; flex-direction: column; gap: 10px;
}
.role-card:hover { box-shadow: var(--shadow-md); transform: translateY(-4px); }
.role-icon {
  width: 52px; height: 52px; border-radius: 12px; display: grid; place-items: center;
  font-size: 1.25rem; color: #fff;
}
.role-icon-passenger { background: linear-gradient(135deg, var(--primary), #60A5FA); }
.role-icon-driver { background: linear-gradient(135deg, var(--secondary), #475569); }
.role-icon-admin { background: linear-gradient(135deg, #7C3AED, #A78BFA); }
.role-card h3 { font-size: 1.125rem; font-weight: 700; }
.role-features { list-style: none; color: var(--muted); font-size: 0.875rem; flex: 1; }
.role-features li { padding: 2px 0; }
.role-features li::before { content: '✓ '; color: var(--success); font-weight: 700; }

/* Demo access */
.demo-access { padding: 8px 0 32px; }
.demo-access-card { padding: 24px; border-left: 4px solid var(--primary); }
.demo-access-header { display: flex; gap: 14px; margin-bottom: 20px; }
.demo-access-header i { font-size: 1.5rem; color: var(--primary); margin-top: 4px; }
.demo-cred-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(240px, 1fr)); gap: 16px; }
.demo-cred-block { padding: 16px; background: var(--bg); border-radius: var(--radius); border: 1px solid var(--border); }
.demo-cred-block h3 { font-size: 0.9375rem; margin-bottom: 12px; display: flex; align-items: center; gap: 8px; }
.demo-cred-block dl div { display: flex; justify-content: space-between; padding: 6px 0; border-bottom: 1px solid var(--border); font-size: 0.875rem; }
.demo-cred-block code { background: var(--surface); padding: 2px 8px; border-radius: 6px; font-size: 0.8125rem; }

/* Cards & buttons */
.card {
  background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius-lg);
  padding: 20px; box-shadow: var(--shadow-sm);
}
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 8px;
  padding: 10px 16px; border-radius: 10px; border: 1px solid var(--border);
  background: var(--surface); color: var(--text); font-weight: 600; font-size: 0.875rem;
  cursor: pointer; transition: var(--transition); font-family: inherit;
}
.btn:hover { box-shadow: var(--shadow-sm); }
.btn-primary { background: var(--primary); color: #fff; border-color: var(--primary); }
.btn-primary:hover { background: var(--primary-hover); }
.btn-secondary { background: var(--bg); }
.btn-success { background: var(--success); color: #fff; border-color: var(--success); }
.btn-danger { background: var(--danger); color: #fff; border-color: var(--danger); }
.btn-ghost { background: transparent; border-color: transparent; }
.btn-ghost:hover { background: var(--bg); }
.btn-sm { padding: 6px 12px; font-size: 0.8125rem; }
.btn-block { width: 100%; }
.btn-row { display: flex; flex-wrap: wrap; gap: 8px; margin-top: 12px; }
.btn:disabled { opacity: 0.5; cursor: not-allowed; }

/* Badges */
.badge { display: inline-block; padding: 3px 10px; border-radius: 999px; font-size: 0.75rem; font-weight: 600; }
.badge-offline { background: #F1F5F9; color: var(--muted); }
.badge-ready { background: #FEF3C7; color: #92400E; }
.badge-active { background: #DCFCE7; color: #166534; }
.badge-completed { background: #E0E7FF; color: #3730A3; }

/* Forms */
.form label { display: block; margin: 12px 0 6px; font-size: 0.875rem; font-weight: 500; }
.form input, .form select, .search-input, .form-grid input, .form-grid select {
  width: 100%; padding: 10px 12px; border-radius: 8px;
  border: 1px solid var(--border); font-family: inherit; font-size: 0.9375rem;
  transition: var(--transition);
}
.form input:focus, .search-input:focus, .form-grid input:focus, .form-grid select:focus {
  outline: none; border-color: var(--primary); box-shadow: 0 0 0 3px rgba(37,99,235,0.15);
}
.form-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 12px; margin-top: 12px; }
.toggle-row, .check-row { display: flex; align-items: center; justify-content: space-between; margin: 12px 0; font-weight: 500; }

/* Switch */
.switch { position: relative; width: 48px; height: 28px; }
.switch input { display: none; }
.slider {
  position: absolute; inset: 0; background: var(--border); border-radius: 999px; cursor: pointer; transition: var(--transition);
}
.slider::before {
  content: ''; position: absolute; width: 22px; height: 22px; left: 3px; top: 3px;
  background: #fff; border-radius: 50%; transition: var(--transition); box-shadow: var(--shadow-sm);
}
.switch input:checked + .slider { background: var(--primary); }
.switch input:checked + .slider::before { transform: translateX(20px); }

/* Passenger */
.routes-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(260px, 1fr)); gap: 16px; padding: 8px 0 24px; }
.route-card {
  background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius-lg);
  overflow: hidden; transition: var(--transition); box-shadow: var(--shadow-sm);
}
.route-card:hover { box-shadow: var(--shadow-md); transform: translateY(-3px); }
.route-card-accent { height: 4px; }
.route-card-body { padding: 16px; }
.route-card-body h4 { font-size: 1rem; margin-bottom: 4px; }

.passenger-map-layout { display: grid; grid-template-columns: 320px 1fr; gap: 16px; }
.sidebar { overflow: auto; max-height: var(--map-h); }
.bus-list { display: flex; flex-direction: column; gap: 10px; margin-top: 12px; }
.bus-card {
  padding: 14px; border: 1px solid var(--border); border-radius: var(--radius);
  background: var(--bg); cursor: pointer; transition: var(--transition);
}
.bus-card:hover { border-color: var(--primary); }
.bus-card-top { display: flex; justify-content: space-between; align-items: center; margin-bottom: 6px; }
.bus-card-eta { font-size: 1.25rem; font-weight: 700; color: var(--primary); margin: 8px 0; }

/* Driver */
.driver-layout { display: grid; grid-template-columns: 360px 1fr; gap: 16px; }
.driver-sidebar { display: flex; flex-direction: column; gap: 16px; }
.trip-card-head { display: flex; justify-content: space-between; align-items: center; margin-bottom: 8px; }
.trip-meta { display: grid; gap: 12px; margin-top: 16px; }
.trip-meta .label { font-size: 0.75rem; text-transform: uppercase; letter-spacing: 0.04em; color: var(--muted); }
.trip-meta .value { font-weight: 600; margin-top: 2px; }

/* Admin */
.admin-layout { display: grid; grid-template-columns: 340px 1fr; gap: 16px; }
.admin-sidebar { max-height: calc(var(--map-h) + 40px); overflow: auto; }
.stats-row { display: flex; gap: 12px; margin-bottom: 16px; }
.stat { flex: 1; padding: 12px; background: var(--bg); border-radius: var(--radius); text-align: center; }
.stat-val { display: block; font-size: 1.5rem; font-weight: 800; color: var(--primary); }
.stat-label { font-size: 0.75rem; color: var(--muted); text-transform: uppercase; }
.admin-route-list { list-style: none; margin-top: 12px; }
.admin-route-item {
  padding: 12px; border: 1px solid var(--border); border-radius: var(--radius);
  margin-bottom: 8px; background: var(--bg);
}
.admin-route-head { display: flex; gap: 10px; align-items: flex-start; }
.route-dot { width: 12px; height: 12px; border-radius: 50%; margin-top: 4px; flex-shrink: 0; }
.admin-route-actions { display: flex; gap: 6px; margin-top: 10px; flex-wrap: wrap; }

/* Maps */
.map-wrap { overflow: hidden; padding: 0 !important; position: relative; }
.leaflet-map { width: 100%; height: var(--map-h); min-height: 400px; background: #E2E8F0; }
.leaflet-container { font-family: var(--font); border-radius: var(--radius-lg); z-index: 1; }
.map-loading {
  position: absolute; inset: 0; display: flex; flex-direction: column;
  align-items: center; justify-content: center; gap: 12px;
  background: var(--bg); color: var(--muted); z-index: 500; min-height: 400px;
}
.map-loading.hidden { display: none; }
.spinner {
  width: 36px; height: 36px; border: 3px solid var(--border);
  border-top-color: var(--primary); border-radius: 50%;
  animation: spin 0.7s linear infinite;
}
@keyframes spin { to { transform: rotate(360deg); } }
.leaflet-pane path { stroke-linecap: round; }
.driver-pin {
  width: 36px; height: 36px; background: var(--primary); color: #fff; border-radius: 50%;
  display: grid; place-items: center; border: 3px solid #fff; box-shadow: var(--shadow-md);
}

/* Modal */
.modal {
  position: fixed; inset: 0; z-index: 200; display: grid; place-items: center;
  background: rgba(15, 23, 42, 0.45); backdrop-filter: blur(4px); padding: 16px;
}
.modal-card { width: min(420px, 100%); position: relative; animation: fadeIn 0.2s ease; }
.modal-close {
  position: absolute; right: 16px; top: 16px; border: none; background: none;
  font-size: 1.5rem; cursor: pointer; color: var(--muted);
}
.login-demo-hint { margin: 16px 0; padding: 12px; background: #EFF6FF; border-radius: var(--radius); }
.login-demo-row { display: flex; flex-wrap: wrap; gap: 8px; margin: 8px 0; }

/* Empty & skeleton states */
.empty-state { text-align: center; padding: 40px 20px; color: var(--muted); }
.empty-state i { font-size: 2rem; margin-bottom: 12px; opacity: 0.5; }
.empty-state.compact { padding: 20px; }
.skeleton-card, .skeleton-line {
  background: linear-gradient(90deg, #E2E8F0 25%, #F1F5F9 50%, #E2E8F0 75%);
  background-size: 200% 100%; animation: shimmer 1.2s infinite; border-radius: var(--radius);
}
.skeleton-card { height: 140px; }
.skeleton-line { height: 48px; margin-bottom: 8px; }
@keyframes shimmer { 0% { background-position: 200% 0; } 100% { background-position: -200% 0; } }

/* Reviews */
.reviews-panel { margin-bottom: 12px; }
.reviews-head { display: flex; justify-content: space-between; align-items: center; margin-bottom: 12px; }
.review-item { padding: 10px 0; border-bottom: 1px solid var(--border); }
.review-stars { color: var(--warning); font-size: 0.875rem; }

/* Toast */
.toast {
  position: fixed; right: 20px; bottom: 20px; z-index: 300;
  padding: 12px 20px; border-radius: var(--radius); background: var(--secondary); color: #fff;
  box-shadow: var(--shadow-lg); font-weight: 500; animation: fadeIn 0.2s ease;
}

/* Responsive */
@media (max-width: 960px) {
  .passenger-map-layout, .driver-layout, .admin-layout { grid-template-columns: 1fr; }
  .sidebar, .driver-sidebar, .admin-sidebar { max-height: none; }
  .leaflet-map { min-height: 320px; height: 50vh; }
  .form-grid { grid-template-columns: 1fr; }
}