* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

:root {
  --primary: #1a5276;
  --primary-light: #2980b9;
  --secondary: #2c3e50;
  --accent: #e67e22;
  --warning: #f39c12;
  --danger: #e74c3c;
  --success: #27ae60;
  --bg: #f5f6fa;
  --card-bg: #ffffff;
  --text: #2c3e50;
  --text-light: #7f8c8d;
  --border: #dcdde1;
  --shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
  --radius: 8px;
}

body {
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, sans-serif;
  background: var(--bg);
  color: var(--text);
  line-height: 1.6;
  min-height: 100vh;
}

/* Lock Screen */
.lock-screen {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: linear-gradient(135deg, var(--primary), var(--secondary));
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 10000;
  padding: 1rem;
}

.lock-screen[hidden] {
  display: none;
}

.lock-card {
  background: white;
  border-radius: 12px;
  padding: 2.5rem;
  text-align: center;
  box-shadow: 0 10px 40px rgba(0, 0, 0, 0.3);
  max-width: 380px;
  width: 100%;
}

.lock-card h1 {
  font-size: 1.3rem;
  color: var(--primary);
  margin-bottom: 0.5rem;
}

.lock-card > p {
  color: var(--text-light);
  font-size: 0.9rem;
  margin-bottom: 1.5rem;
}

.lock-input-wrapper {
  display: flex;
  gap: 0.5rem;
}

.lock-input-wrapper input {
  flex: 1;
  padding: 0.75rem 1rem;
  border: 2px solid var(--border);
  border-radius: var(--radius);
  font-size: 1rem;
  text-align: center;
  letter-spacing: 2px;
}

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

.lock-error {
  color: var(--danger);
  font-size: 0.85rem;
  margin-top: 1rem;
}

.lock-error[hidden] {
  display: none;
}

/* Header */
header {
  background: linear-gradient(135deg, var(--primary), var(--secondary));
  color: white;
  padding: 1.5rem 2rem;
  box-shadow: var(--shadow);
}

.header-top {
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.header-content h1 {
  font-size: 1.8rem;
  font-weight: 700;
}

.header-actions {
  display: flex;
  gap: 0.5rem;
  align-items: center;
}

.header-link {
  color: white;
  text-decoration: none;
  font-size: 0.9rem;
  padding: 0.5rem 1rem;
  border: 1px solid rgba(255,255,255,0.4);
  border-radius: 6px;
  transition: background 0.2s;
  background: none;
  cursor: pointer;
}

.header-link:hover {
  background: rgba(255,255,255,0.15);
}

.header-top > div:last-child,
.header-top > :last-child {
  display: flex;
  gap: 0.5rem;
  align-items: center;
}

.subtitle {
  opacity: 0.85;
  font-size: 1rem;
  margin-top: 0.25rem;
}

/* Main */
main {
  max-width: 1200px;
  margin: 0 auto;
  padding: 1.5rem;
}

/* Dashboard */
.dashboard {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
  gap: 1rem;
  margin-bottom: 1.5rem;
}

.stat-card {
  background: var(--card-bg);
  border-radius: var(--radius);
  padding: 1.25rem;
  text-align: center;
  box-shadow: var(--shadow);
  border-top: 4px solid var(--primary);
}

.stat-card.stat-warning {
  border-top-color: var(--warning);
}

.stat-card.stat-info {
  border-top-color: var(--primary-light);
}

.stat-card.stat-danger {
  border-top-color: var(--danger);
}

.stat-number {
  display: block;
  font-size: 2rem;
  font-weight: 700;
  color: var(--text);
}

.stat-label {
  display: block;
  font-size: 0.8rem;
  color: var(--text-light);
  text-transform: uppercase;
  letter-spacing: 0.5px;
  margin-top: 0.25rem;
}

/* Controls */
.controls {
  background: var(--card-bg);
  border-radius: var(--radius);
  padding: 1.25rem;
  box-shadow: var(--shadow);
  margin-bottom: 1.5rem;
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

.search-bar {
  display: flex;
  gap: 0.5rem;
}

.search-bar input {
  flex: 1;
  padding: 0.6rem 1rem;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  font-size: 0.95rem;
}

.filter-bar {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  flex-wrap: wrap;
}

.filter-bar label {
  font-weight: 500;
  font-size: 0.9rem;
}

.filter-bar select,
.filter-bar input[type="number"] {
  padding: 0.5rem;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  font-size: 0.9rem;
}

.filter-bar input[type="number"] {
  width: 80px;
}

.action-bar {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 0.5rem;
}

.action-bar select {
  padding: 0.5rem;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  font-size: 0.9rem;
}

/* Buttons */
.btn {
  padding: 0.6rem 1.2rem;
  border: none;
  border-radius: var(--radius);
  cursor: pointer;
  font-size: 0.9rem;
  font-weight: 500;
  transition: all 0.2s ease;
  white-space: nowrap;
}

.btn:hover {
  transform: translateY(-1px);
  box-shadow: 0 2px 6px rgba(0, 0, 0, 0.15);
}

.btn-primary {
  background: var(--primary);
  color: white;
}

.btn-primary:hover {
  background: var(--primary-light);
}

.btn-secondary {
  background: var(--secondary);
  color: white;
}

.btn-secondary:hover {
  background: #34495e;
}

.btn-outline {
  background: transparent;
  border: 1px solid var(--border);
  color: var(--text);
}

.btn-outline:hover {
  background: var(--bg);
}

.btn-warning {
  background: var(--warning);
  color: white;
}

.btn-warning:hover {
  background: var(--accent);
}

.btn-danger {
  background: var(--danger);
  color: white;
}

.btn-danger:hover {
  background: #c0392b;
}

.btn-small {
  padding: 0.4rem 0.8rem;
  font-size: 0.8rem;
}

/* Customer Table */
.customer-table {
  width: 100%;
  border-collapse: collapse;
  background: var(--card-bg);
  border-radius: var(--radius);
  overflow: hidden;
  box-shadow: var(--shadow);
  font-size: 0.9rem;
}

.customer-table thead {
  background: var(--primary);
  color: white;
}

.customer-table th {
  padding: 0.75rem 1rem;
  text-align: left;
  font-weight: 600;
  font-size: 0.8rem;
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.customer-table td {
  padding: 0.7rem 1rem;
  border-bottom: 1px solid var(--border);
  vertical-align: top;
}

.customer-table tbody tr:hover {
  background: #f0f4f8;
}

.customer-table tbody tr.row-warning {
  border-left: 4px solid var(--danger);
}

.customer-table tbody tr:last-child td {
  border-bottom: none;
}

.cell-name strong {
  font-size: 0.95rem;
}

.cell-check {
  width: 40px;
  text-align: center;
}

.cell-check input[type="checkbox"] {
  width: 16px;
  height: 16px;
  cursor: pointer;
}

.cell-vehicles {
  font-size: 0.85rem;
  line-height: 1.5;
  max-width: 220px;
}

.cell-actions {
  white-space: nowrap;
}

.cell-actions button {
  margin-right: 0.3rem;
}

.cell-actions button:last-child {
  margin-right: 0;
}

/* Pagination */
.pagination {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 1rem 0;
  flex-wrap: wrap;
  gap: 0.75rem;
}

.page-info {
  color: var(--text-light);
  font-size: 0.85rem;
}

.page-buttons {
  display: flex;
  gap: 0.3rem;
  align-items: center;
  flex-wrap: wrap;
}

.page-buttons button {
  min-width: 36px;
  text-align: center;
}

.page-buttons button:disabled {
  opacity: 0.4;
  cursor: not-allowed;
  transform: none;
  box-shadow: none;
}

.page-ellipsis {
  padding: 0 0.3rem;
  color: var(--text-light);
}

.expiration-badge {
  display: inline-block;
  padding: 0.2rem 0.6rem;
  border-radius: 4px;
  font-size: 0.8rem;
  font-weight: 600;
}

.expiration-badge.expired {
  background: #fde8e8;
  color: var(--danger);
}

.expiration-badge.expiring {
  background: #fef3cd;
  color: #856404;
}

.expiration-badge.valid {
  background: #d4edda;
  color: var(--success);
}

.loading, .no-results {
  text-align: center;
  padding: 3rem;
  color: var(--text-light);
  font-size: 1.1rem;
}

/* Modal */
.modal-overlay {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: rgba(0, 0, 0, 0.5);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 1000;
  padding: 1rem;
}

.modal-overlay[hidden] {
  display: none;
}

.modal {
  background: var(--card-bg);
  border-radius: var(--radius);
  width: 100%;
  max-width: 650px;
  max-height: 90vh;
  overflow-y: auto;
  padding: 2rem;
  box-shadow: 0 10px 40px rgba(0, 0, 0, 0.2);
}

.modal-small {
  max-width: 400px;
  text-align: center;
}

.modal-small p {
  margin: 1rem 0 1.5rem;
  color: var(--text-light);
}

.modal-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 1.5rem;
}

.modal-header h2 {
  font-size: 1.4rem;
}

.modal-close {
  background: none;
  border: none;
  font-size: 1.8rem;
  cursor: pointer;
  color: var(--text-light);
  padding: 0.25rem;
  line-height: 1;
}

.modal-close:hover {
  color: var(--text);
}

/* Form */
.form-row {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
  gap: 1rem;
  margin-bottom: 1rem;
}

.form-group {
  display: flex;
  flex-direction: column;
}

.form-group label {
  font-size: 0.85rem;
  font-weight: 600;
  margin-bottom: 0.3rem;
  color: var(--text);
}

.form-group input,
.form-group textarea,
.form-group select {
  padding: 0.6rem 0.8rem;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  font-size: 0.95rem;
  transition: border-color 0.2s;
}

.form-group input:focus,
.form-group textarea:focus {
  outline: none;
  border-color: var(--primary-light);
  box-shadow: 0 0 0 3px rgba(41, 128, 185, 0.1);
}

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

.vin-input-wrapper {
  display: flex;
  gap: 0.5rem;
}

.vin-input-wrapper input {
  flex: 1;
  padding: 0.6rem 0.8rem;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  font-size: 0.95rem;
  text-transform: uppercase;
}

.vin-hint {
  color: var(--text-light);
  font-size: 0.8rem;
  margin-top: 0.25rem;
}

.form-actions {
  display: flex;
  justify-content: flex-end;
  gap: 0.75rem;
  margin-top: 1.5rem;
}

/* Footer */
footer {
  text-align: center;
  padding: 1.5rem;
  color: var(--text-light);
  font-size: 0.85rem;
}

/* Responsive */
@media (max-width: 768px) {
  header {
    padding: 1rem;
  }

  .header-top {
    flex-direction: column;
    gap: 0.5rem;
    align-items: flex-start;
  }

  .header-content h1 {
    font-size: 1.2rem;
  }

  .header-link {
    align-self: flex-end;
    font-size: 0.8rem;
    padding: 0.4rem 0.8rem;
  }

  main {
    padding: 0.75rem;
  }

  /* Dashboard */
  .dashboard {
    grid-template-columns: repeat(2, 1fr);
    gap: 0.5rem;
  }

  .stat-card {
    padding: 0.75rem;
  }

  .stat-number {
    font-size: 1.5rem;
  }

  .stat-label {
    font-size: 0.7rem;
  }

  /* Controls */
  .controls {
    padding: 0.75rem;
    gap: 0.75rem;
  }

  .search-bar input {
    font-size: 16px; /* prevents zoom on iOS */
  }

  .filter-bar {
    flex-direction: column;
    align-items: stretch;
    gap: 0.4rem;
  }

  .filter-bar label {
    display: none;
  }

  .action-bar {
    flex-direction: column;
    gap: 0.5rem;
  }

  .action-bar .btn {
    width: 100%;
    text-align: center;
  }

  .action-bar select {
    width: 100%;
  }

  /* Table → Card layout on mobile */
  .customer-table {
    border: none;
    box-shadow: none;
    background: transparent;
  }

  .customer-table thead {
    display: none;
  }

  .customer-table tbody {
    display: flex;
    flex-direction: column;
    gap: 0.75rem;
  }

  .customer-table tr {
    display: block;
    background: var(--card-bg);
    border-radius: var(--radius);
    padding: 1rem;
    box-shadow: var(--shadow);
    border-left: 4px solid var(--primary);
  }

  .customer-table tr.row-warning {
    border-left: 4px solid var(--danger);
  }

  .customer-table td {
    display: block;
    padding: 0.2rem 0;
    border: none;
    text-align: left;
  }

  .customer-table td::before {
    content: attr(data-label);
    font-size: 0.7rem;
    color: var(--text-light);
    text-transform: uppercase;
    letter-spacing: 0.5px;
    display: block;
    margin-bottom: 0.1rem;
  }

  .customer-table td.cell-check {
    position: absolute;
    top: 0.75rem;
    right: 0.75rem;
  }

  .customer-table tr {
    position: relative;
    padding-right: 3rem;
  }

  .customer-table td.cell-name {
    font-size: 1.05rem;
    margin-bottom: 0.3rem;
  }

  .customer-table td.cell-actions {
    margin-top: 0.5rem;
    padding-top: 0.5rem;
    border-top: 1px solid var(--border);
    display: flex;
    gap: 0.5rem;
  }

  .cell-vehicles {
    max-width: 100%;
    font-size: 0.85rem;
  }

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

  .modal {
    padding: 1rem;
    margin: 0.5rem;
    max-height: 95vh;
  }

  .form-group input,
  .form-group textarea,
  .form-group select {
    font-size: 16px; /* prevents zoom on iOS */
  }

  /* Pagination */
  .pagination {
    flex-direction: column;
    align-items: center;
    gap: 0.5rem;
  }

  .page-buttons {
    flex-wrap: wrap;
    justify-content: center;
  }

  /* Toast */
  .toast-container {
    width: 90%;
  }

  .toast {
    min-width: unset;
    width: 100%;
  }
}

/* Vehicles section in form */
.vehicles-section {
  margin-top: 1.5rem;
  border-top: 2px solid var(--border);
  padding-top: 1rem;
}

.vehicles-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 1rem;
}

.vehicles-header h3 {
  font-size: 1.1rem;
  color: var(--primary);
}

.vehicle-entry {
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 1rem;
  margin-bottom: 1rem;
}

.vehicle-entry-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 0.75rem;
}

.vehicle-entry-title {
  font-weight: 600;
  font-size: 0.9rem;
  color: var(--primary);
}

.remove-vehicle-btn {
  padding: 0.2rem 0.6rem !important;
  font-size: 1.1rem !important;
  line-height: 1;
}

/* Customer info in table rows */
.customer-info-row {
  display: flex;
  gap: 2rem;
  margin-bottom: 0.75rem;
}

/* Clickable name in table */
.clickable {
  cursor: pointer;
  color: var(--primary);
  transition: color 0.2s;
}

.clickable:hover {
  color: var(--primary-light);
  text-decoration: underline;
}

/* View Modal */
.view-section {
  margin-bottom: 1.5rem;
}

.view-section-title {
  font-size: 1rem;
  color: var(--primary);
  margin-bottom: 0.75rem;
  padding-bottom: 0.4rem;
  border-bottom: 1px solid var(--border);
}

.view-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1rem;
}

.view-item {
  display: flex;
  flex-direction: column;
  gap: 0.15rem;
}

.view-item-full {
  grid-column: 1 / -1;
}

.view-label {
  font-size: 0.75rem;
  color: var(--text-light);
  text-transform: uppercase;
  letter-spacing: 0.5px;
  font-weight: 600;
}

.view-value {
  font-size: 0.95rem;
}

.view-vehicle {
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 0.75rem 1rem;
  margin-bottom: 0.5rem;
}

.view-vehicle-name {
  font-weight: 600;
  font-size: 0.95rem;
  margin-bottom: 0.4rem;
}

.view-vehicle-details {
  display: flex;
  flex-wrap: wrap;
  gap: 1rem;
  font-size: 0.85rem;
  color: var(--text);
}

.view-vehicle-details span {
  display: inline-flex;
  align-items: center;
  gap: 0.3rem;
}

.no-vehicles {
  color: var(--text-light);
  font-size: 0.85rem;
  font-style: italic;
}

/* Toast Notifications */
.toast-container {
  position: fixed;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  z-index: 9999;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.5rem;
  pointer-events: none;
}

.toast {
  background: var(--card-bg);
  border-radius: var(--radius);
  padding: 1.5rem 2rem;
  box-shadow: 0 8px 40px rgba(0, 0, 0, 0.3);
  border-left: 5px solid var(--primary);
  max-width: 500px;
  min-width: 300px;
  display: flex;
  align-items: center;
  gap: 1rem;
  animation: fadeIn 0.2s ease;
  cursor: pointer;
  pointer-events: all;
}

.toast.toast-error {
  border-left-color: var(--danger);
  background: #fff5f5;
}

.toast.toast-success {
  border-left-color: var(--success);
  background: #f0fff4;
}

.toast.toast-warning {
  border-left-color: var(--warning);
  background: #fffbeb;
}

.toast-icon {
  font-size: 1.8rem;
  flex-shrink: 0;
}

.toast-message {
  font-size: 1rem;
  font-weight: 500;
  color: var(--text);
  line-height: 1.4;
}

.toast.fade-out {
  animation: fadeOut 0.2s ease forwards;
}

@keyframes fadeIn {
  from { transform: scale(0.9); opacity: 0; }
  to { transform: scale(1); opacity: 1; }
}

@keyframes fadeOut {
  from { transform: scale(1); opacity: 1; }
  to { transform: scale(0.9); opacity: 0; }
}

/* Reminder Modal */
.reminder-config {
  margin-bottom: 1rem;
  padding: 0.75rem 1rem;
  background: var(--bg);
  border-radius: var(--radius);
  border: 1px solid var(--border);
}

/* SMS Single Reminder Modal */
.sms-recipient {
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 0.75rem 1rem;
  margin-bottom: 1rem;
  font-size: 0.9rem;
}

.sms-recipient strong {
  display: block;
  font-size: 1rem;
  margin-bottom: 0.25rem;
}

.sms-recipient .sms-phone {
  color: var(--primary);
  font-weight: 500;
}

.sms-recipient .sms-email {
  color: var(--secondary);
  font-weight: 500;
}

#smsCharCount {
  display: block;
  text-align: right;
  margin-top: 0.3rem;
  font-size: 0.8rem;
  color: var(--text-light);
}

#smsCharCount.over-limit {
  color: var(--danger);
  font-weight: 600;
}

.config-status p {
  margin: 0.3rem 0;
  font-size: 0.9rem;
}

.config-warning {
  color: var(--accent);
  font-weight: 500;
  margin-top: 0.5rem;
}

.reminder-preview {
  margin-top: 1rem;
  padding: 0.75rem;
  background: #f0fff4;
  border-radius: var(--radius);
  border: 1px solid var(--success);
  max-height: 300px;
  overflow-y: auto;
}

.reminder-preview h4 {
  margin-bottom: 0.5rem;
}

.reminder-preview-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.8rem;
  margin: 0.5rem 0;
}

.reminder-preview-table th {
  background: var(--primary);
  color: white;
  padding: 0.4rem 0.6rem;
  text-align: left;
  font-size: 0.75rem;
  text-transform: uppercase;
}

.reminder-preview-table td {
  padding: 0.4rem 0.6rem;
  border-bottom: 1px solid var(--border);
}

.reminder-preview-table tr.no-contact td {
  opacity: 0.5;
}

.reminder-preview-table .missing {
  color: var(--danger);
  font-style: italic;
  font-size: 0.75rem;
}

.preview-note {
  margin-top: 0.75rem;
  font-size: 0.85rem;
  font-weight: 500;
  color: var(--primary);
}

.reminder-results {
  margin-top: 1rem;
  padding: 0.75rem 1rem;
  background: var(--bg);
  border-radius: var(--radius);
  border: 1px solid var(--border);
}

.reminder-results h4 {
  margin-bottom: 0.5rem;
}

.reminder-errors {
  list-style: none;
  padding: 0;
  margin: 0.5rem 0 0;
  font-size: 0.85rem;
  color: var(--danger);
}

.reminder-errors li {
  padding: 0.2rem 0;
  border-bottom: 1px dashed #fde8e8;
}

/* VIN decode loading state */
.vin-loading {
  opacity: 0.6;
  pointer-events: none;
}

.vin-success {
  border-color: var(--success) !important;
  background-color: #f0fff4;
}

.vin-error {
  border-color: var(--danger) !important;
  background-color: #fff5f5;
}