/* ===== RESET & BASE ===== */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

:root {
  --primary: #1a56db;
  --primary-dark: #1e429f;
  --secondary: #0e9f6e;
  --danger: #f05252;
  --warning: #ff8a4c;
  --bg: #f3f4f6;
  --card: #ffffff;
  --text: #111827;
  --muted: #6b7280;
  --border: #e5e7eb;
  --sidebar-w: 260px;
  --radius: 12px;
  --shadow: 0 2px 12px rgba(0,0,0,0.08);
}

body {
  font-family: 'Inter', system-ui, sans-serif;
  background: var(--bg);
  color: var(--text);
  min-height: 100vh;
}

a { color: inherit; text-decoration: none; }
button { cursor: pointer; font-family: inherit; }

/* ===== SCROLLBAR ===== */
::-webkit-scrollbar { width: 6px; }
::-webkit-scrollbar-thumb { background: #d1d5db; border-radius: 99px; }

/* ===== AUTH PAGES ===== */
.auth-wrapper {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  background: linear-gradient(135deg, #1a56db 0%, #0e9f6e 100%);
  padding: 1rem;
}

.auth-card {
  background: #fff;
  border-radius: 20px;
  padding: 2.5rem 2rem;
  width: 100%;
  max-width: 420px;
  box-shadow: 0 20px 60px rgba(0,0,0,0.2);
}

.auth-logo {
  text-align: center;
  margin-bottom: 1.5rem;
}

.auth-logo .icon {
  font-size: 3rem;
}

.auth-logo h1 {
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--primary);
}

.auth-logo p {
  color: var(--muted);
  font-size: 0.875rem;
}

/* ===== FORMS ===== */
.form-group {
  margin-bottom: 1rem;
}

.form-group label {
  display: block;
  font-size: 0.875rem;
  font-weight: 600;
  margin-bottom: 0.375rem;
  color: var(--text);
}

.form-control {
  width: 100%;
  padding: 0.65rem 0.875rem;
  border: 2px solid var(--border);
  border-radius: 8px;
  font-size: 0.9rem;
  transition: border-color 0.2s;
  background: #fff;
  color: var(--text);
}

.form-control:focus {
  outline: none;
  border-color: var(--primary);
  box-shadow: 0 0 0 3px rgba(26,86,219,0.1);
}

select.form-control {
  appearance: none;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' fill='%236b7280' viewBox='0 0 16 16'%3E%3Cpath d='M7.247 11.14L2.451 5.658C1.885 5.013 2.345 4 3.204 4h9.592a1 1 0 0 1 .753 1.659l-4.796 5.48a1 1 0 0 1-1.506 0z'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 0.875rem center;
  padding-right: 2.5rem;
}

.form-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 0.75rem;
}

/* ===== BUTTONS ===== */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.4rem;
  padding: 0.65rem 1.25rem;
  border: none;
  border-radius: 8px;
  font-size: 0.9rem;
  font-weight: 600;
  transition: all 0.2s;
  white-space: nowrap;
}

.btn-primary { background: var(--primary); color: #fff; }
.btn-primary:hover { background: var(--primary-dark); transform: translateY(-1px); }
.btn-secondary { background: var(--secondary); color: #fff; }
.btn-secondary:hover { opacity: 0.9; transform: translateY(-1px); }
.btn-danger { background: var(--danger); color: #fff; }
.btn-danger:hover { opacity: 0.9; }
.btn-outline { background: transparent; border: 2px solid var(--primary); color: var(--primary); }
.btn-outline:hover { background: var(--primary); color: #fff; }
.btn-ghost { background: transparent; color: var(--muted); }
.btn-ghost:hover { background: var(--bg); }
.btn-sm { padding: 0.4rem 0.8rem; font-size: 0.8rem; }
.btn-full { width: 100%; }
.btn-warning { background: var(--warning); color: #fff; }

/* ===== LAYOUT ===== */
.app-layout {
  display: flex;
  min-height: 100vh;
}

/* ===== SIDEBAR ===== */
.sidebar {
  width: var(--sidebar-w);
  background: #111827;
  color: #f9fafb;
  display: flex;
  flex-direction: column;
  position: fixed;
  top: 0; left: 0; bottom: 0;
  z-index: 100;
  transition: transform 0.3s;
  overflow-y: auto;
}

.sidebar-brand {
  padding: 1.5rem 1.25rem;
  border-bottom: 1px solid rgba(255,255,255,0.08);
  display: flex;
  align-items: center;
  gap: 0.75rem;
}

.sidebar-brand .brand-icon { font-size: 1.75rem; }
.sidebar-brand .brand-text h2 { font-size: 1rem; font-weight: 700; }
.sidebar-brand .brand-text p { font-size: 0.75rem; color: #9ca3af; }

.sidebar-nav { padding: 1rem 0.75rem; flex: 1; }

.nav-section {
  font-size: 0.7rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: #4b5563;
  padding: 0.75rem 0.5rem 0.25rem;
}

.nav-link {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  padding: 0.65rem 0.875rem;
  border-radius: 8px;
  color: #9ca3af;
  font-size: 0.9rem;
  font-weight: 500;
  transition: all 0.2s;
  margin-bottom: 0.125rem;
}

.nav-link:hover, .nav-link.active {
  background: rgba(26,86,219,0.15);
  color: #60a5fa;
}

.nav-link .nav-icon { font-size: 1.1rem; width: 20px; text-align: center; }

.sidebar-footer {
  padding: 1rem 0.75rem;
  border-top: 1px solid rgba(255,255,255,0.08);
}

.user-info {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  padding: 0.5rem;
}

.user-avatar {
  width: 36px; height: 36px;
  border-radius: 50%;
  background: var(--primary);
  display: flex; align-items: center; justify-content: center;
  font-weight: 700; font-size: 0.875rem;
}

.user-details .user-name { font-size: 0.875rem; font-weight: 600; }
.user-details .user-role {
  font-size: 0.7rem; color: #9ca3af;
  background: rgba(255,255,255,0.1);
  padding: 0.1rem 0.4rem;
  border-radius: 99px;
}

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

/* ===== TOPBAR ===== */
.topbar {
  background: #fff;
  border-bottom: 1px solid var(--border);
  padding: 0.875rem 1.5rem;
  display: flex;
  align-items: center;
  gap: 1rem;
  position: sticky;
  top: 0;
  z-index: 50;
}

.topbar-title { font-size: 1.125rem; font-weight: 700; flex: 1; }

.hamburger {
  display: none;
  background: none;
  border: none;
  font-size: 1.5rem;
  cursor: pointer;
  color: var(--text);
}

.badge {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0.15rem 0.55rem;
  border-radius: 99px;
  font-size: 0.72rem;
  font-weight: 700;
}

.badge-primary { background: #dbeafe; color: var(--primary); }
.badge-success { background: #d1fae5; color: #065f46; }
.badge-warning { background: #fff3cd; color: #92400e; }
.badge-danger { background: #fee2e2; color: #991b1b; }
.badge-muted { background: #f3f4f6; color: var(--muted); }

/* ===== PAGE CONTENT ===== */
.page-content {
  padding: 1.5rem;
  flex: 1;
}

/* ===== STATS GRID ===== */
.stats-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 1rem;
  margin-bottom: 1.5rem;
}

.stat-card {
  background: var(--card);
  border-radius: var(--radius);
  padding: 1.25rem;
  box-shadow: var(--shadow);
  display: flex;
  align-items: center;
  gap: 1rem;
  border-left: 4px solid transparent;
}

.stat-card.blue { border-color: var(--primary); }
.stat-card.green { border-color: var(--secondary); }
.stat-card.orange { border-color: var(--warning); }
.stat-card.red { border-color: var(--danger); }

.stat-icon {
  font-size: 2rem;
  width: 52px; height: 52px;
  border-radius: 10px;
  display: flex; align-items: center; justify-content: center;
  flex-shrink: 0;
}

.stat-icon.blue { background: #dbeafe; }
.stat-icon.green { background: #d1fae5; }
.stat-icon.orange { background: #ffedd5; }
.stat-icon.red { background: #fee2e2; }

.stat-info .stat-value { font-size: 1.5rem; font-weight: 700; line-height: 1.2; }
.stat-info .stat-label { font-size: 0.8rem; color: var(--muted); font-weight: 500; }
.stat-info .stat-change {
  font-size: 0.75rem;
  font-weight: 600;
  margin-top: 0.2rem;
}
.stat-info .stat-change.up { color: var(--secondary); }
.stat-info .stat-change.down { color: var(--danger); }

/* ===== CARDS ===== */
.card {
  background: var(--card);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  overflow: hidden;
}

.card-header {
  padding: 1rem 1.25rem;
  border-bottom: 1px solid var(--border);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 0.5rem;
  flex-wrap: wrap;
}

.card-header h3 { font-size: 0.95rem; font-weight: 700; }
.card-body { padding: 1.25rem; }
.card-footer {
  padding: 0.875rem 1.25rem;
  border-top: 1px solid var(--border);
  background: #fafafa;
}

/* ===== TABLE ===== */
.table-wrap { overflow-x: auto; }

table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.875rem;
}

thead th {
  background: #f9fafb;
  padding: 0.75rem 1rem;
  text-align: left;
  font-weight: 700;
  font-size: 0.78rem;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  color: var(--muted);
  border-bottom: 2px solid var(--border);
  white-space: nowrap;
}

tbody td {
  padding: 0.875rem 1rem;
  border-bottom: 1px solid var(--border);
  vertical-align: middle;
}

tbody tr:hover { background: #f9fafb; }
tbody tr:last-child td { border-bottom: none; }

/* ===== FILE UPLOAD ===== */
.file-upload-area {
  border: 2px dashed var(--border);
  border-radius: 10px;
  padding: 1.5rem;
  text-align: center;
  cursor: pointer;
  transition: all 0.2s;
  background: #fafafa;
}

.file-upload-area:hover, .file-upload-area.dragover {
  border-color: var(--primary);
  background: #eff6ff;
}

.file-upload-area .upload-icon { font-size: 2rem; margin-bottom: 0.5rem; }
.file-upload-area p { font-size: 0.875rem; color: var(--muted); }
.file-upload-area strong { color: var(--primary); }
.file-upload-area input[type="file"] { display: none; }
.file-preview { margin-top: 0.75rem; }
.file-chip {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  background: #dbeafe;
  color: var(--primary);
  border-radius: 99px;
  padding: 0.25rem 0.75rem;
  font-size: 0.8rem;
  font-weight: 600;
  margin: 0.2rem;
}

/* ===== MODAL ===== */
.modal-backdrop {
  position: fixed;
  inset: 0;
  background: rgba(0,0,0,0.5);
  z-index: 200;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 1rem;
  opacity: 0;
  visibility: hidden;
  transition: all 0.25s;
}

.modal-backdrop.open {
  opacity: 1;
  visibility: visible;
}

.modal {
  background: #fff;
  border-radius: 16px;
  width: 100%;
  max-width: 520px;
  max-height: 90vh;
  overflow-y: auto;
  transform: translateY(20px);
  transition: transform 0.25s;
  box-shadow: 0 25px 60px rgba(0,0,0,0.25);
}

.modal-backdrop.open .modal { transform: translateY(0); }

.modal-header {
  padding: 1.25rem 1.5rem;
  border-bottom: 1px solid var(--border);
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.modal-header h3 { font-size: 1rem; font-weight: 700; }
.modal-body { padding: 1.25rem 1.5rem; }
.modal-footer {
  padding: 1rem 1.5rem;
  border-top: 1px solid var(--border);
  display: flex;
  gap: 0.75rem;
  justify-content: flex-end;
}

/* ===== TOAST ===== */
.toast-container {
  position: fixed;
  bottom: 1.5rem;
  right: 1.5rem;
  z-index: 999;
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}

.toast {
  background: #1f2937;
  color: #fff;
  padding: 0.875rem 1.25rem;
  border-radius: 10px;
  font-size: 0.875rem;
  font-weight: 500;
  display: flex;
  align-items: center;
  gap: 0.5rem;
  min-width: 260px;
  box-shadow: 0 8px 24px rgba(0,0,0,0.2);
  animation: slideIn 0.3s ease;
}

.toast.success { border-left: 4px solid var(--secondary); }
.toast.error { border-left: 4px solid var(--danger); }
.toast.info { border-left: 4px solid var(--primary); }

@keyframes slideIn {
  from { transform: translateX(100px); opacity: 0; }
  to { transform: translateX(0); opacity: 1; }
}

/* ===== CHART AREA ===== */
.chart-container {
  position: relative;
  height: 240px;
  padding: 0.5rem;
}

/* ===== VEHICLE CARDS ===== */
.vehicle-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: 1rem;
}

.vehicle-card {
  background: #fff;
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  overflow: hidden;
  border: 1px solid var(--border);
  transition: transform 0.2s, box-shadow 0.2s;
}

.vehicle-card:hover {
  transform: translateY(-3px);
  box-shadow: 0 8px 24px rgba(0,0,0,0.12);
}

.vehicle-card-header {
  background: linear-gradient(135deg, #1a56db, #0e9f6e);
  color: #fff;
  padding: 1rem 1.25rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.vehicle-card-header h4 { font-size: 0.95rem; font-weight: 700; }
.vehicle-card-body { padding: 1rem 1.25rem; }

.vehicle-meta {
  display: flex;
  flex-direction: column;
  gap: 0.4rem;
  font-size: 0.85rem;
  color: var(--muted);
}

.vehicle-meta span strong { color: var(--text); }

.vehicle-actions {
  display: flex;
  gap: 0.5rem;
  padding: 0.875rem 1.25rem;
  border-top: 1px solid var(--border);
}

/* ===== STATUS INDICATORS ===== */
.status-dot {
  width: 8px; height: 8px;
  border-radius: 50%;
  display: inline-block;
  margin-right: 0.35rem;
}

.status-dot.active { background: var(--secondary); }
.status-dot.maintenance { background: var(--warning); }
.status-dot.inactive { background: var(--danger); }

/* ===== EMPTY STATE ===== */
.empty-state {
  text-align: center;
  padding: 3rem 1rem;
  color: var(--muted);
}

.empty-state .empty-icon { font-size: 3rem; margin-bottom: 0.75rem; }
.empty-state p { font-size: 0.9rem; }

/* ===== TABS ===== */
.tabs {
  display: flex;
  gap: 0.25rem;
  border-bottom: 2px solid var(--border);
  margin-bottom: 1.25rem;
  overflow-x: auto;
}

.tab-btn {
  padding: 0.6rem 1rem;
  background: none;
  border: none;
  font-size: 0.875rem;
  font-weight: 600;
  color: var(--muted);
  border-bottom: 2px solid transparent;
  margin-bottom: -2px;
  transition: all 0.2s;
  white-space: nowrap;
}

.tab-btn.active {
  color: var(--primary);
  border-bottom-color: var(--primary);
}

/* ===== FILTER BAR ===== */
.filter-bar {
  display: flex;
  gap: 0.75rem;
  align-items: center;
  flex-wrap: wrap;
  margin-bottom: 1rem;
}

.search-input {
  flex: 1;
  min-width: 200px;
  padding: 0.6rem 0.875rem 0.6rem 2.25rem;
  border: 2px solid var(--border);
  border-radius: 8px;
  font-size: 0.875rem;
  background: #fff url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='16' height='16' fill='%236b7280' viewBox='0 0 16 16'%3E%3Cpath d='M11.742 10.344a6.5 6.5 0 1 0-1.397 1.398h-.001c.03.04.062.078.098.115l3.85 3.85a1 1 0 0 0 1.415-1.414l-3.85-3.85a1.007 1.007 0 0 0-.115-.099zM12 6.5a5.5 5.5 0 1 1-11 0 5.5 5.5 0 0 1 11 0z'/%3E%3C/svg%3E") no-repeat 0.65rem center;
}

.search-input:focus { outline: none; border-color: var(--primary); }

/* ===== PROGRESS BAR ===== */
.progress {
  height: 6px;
  background: var(--border);
  border-radius: 99px;
  overflow: hidden;
}

.progress-bar {
  height: 100%;
  border-radius: 99px;
  background: var(--primary);
  transition: width 0.5s ease;
}

.progress-bar.green { background: var(--secondary); }
.progress-bar.orange { background: var(--warning); }
.progress-bar.red { background: var(--danger); }

/* ===== GRID LAYOUTS ===== */
.grid-2 { display: grid; grid-template-columns: 1fr 1fr; gap: 1rem; }
.grid-3 { display: grid; grid-template-columns: repeat(3, 1fr); gap: 1rem; }

/* ===== OVERLAY SIDEBAR (MOBILE) ===== */
.sidebar-overlay {
  display: none;
  position: fixed;
  inset: 0;
  background: rgba(0,0,0,0.5);
  z-index: 99;
}

/* ===== RESPONSIVE ===== */
@media (max-width: 1024px) {
  .grid-3 { grid-template-columns: 1fr 1fr; }
}

@media (max-width: 768px) {
  .sidebar {
    transform: translateX(-100%);
  }

  .sidebar.open {
    transform: translateX(0);
  }

  .sidebar-overlay { display: block; }

  .main-content { margin-left: 0; }

  .hamburger { display: flex; }

  .stats-grid { grid-template-columns: 1fr 1fr; }

  .grid-2, .grid-3 { grid-template-columns: 1fr; }

  .form-row { grid-template-columns: 1fr; }

  .modal-footer { flex-direction: column-reverse; }

  .modal-footer .btn { width: 100%; }

  .topbar { padding: 0.875rem 1rem; }

  .page-content { padding: 1rem; }

  .filter-bar { flex-direction: column; align-items: stretch; }
}

@media (max-width: 480px) {
  .stats-grid { grid-template-columns: 1fr; }
  .auth-card { padding: 1.75rem 1.25rem; }
  .table-wrap { font-size: 0.8rem; }
  thead th { padding: 0.6rem 0.75rem; }
  tbody td { padding: 0.75rem; }
}

/* ===== UTILS ===== */
.text-muted { color: var(--muted); }
.text-success { color: var(--secondary); }
.text-danger { color: var(--danger); }
.text-warning { color: var(--warning); }
.text-primary { color: var(--primary); }
.fw-bold { font-weight: 700; }
.mb-1 { margin-bottom: 0.5rem; }
.mb-2 { margin-bottom: 1rem; }
.mb-3 { margin-bottom: 1.5rem; }
.mt-1 { margin-top: 0.5rem; }
.flex { display: flex; }
.flex-wrap { flex-wrap: wrap; }
.items-center { align-items: center; }
.justify-between { justify-content: space-between; }
.gap-1 { gap: 0.5rem; }
.gap-2 { gap: 1rem; }
.w-full { width: 100%; }
.hidden { display: none !important; }