/* Import modern Inter font */
@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700&display=swap');

:root {
  --bg-primary: #f8fafc;
  --bg-secondary: #ffffff;
  --bg-tertiary: #f1f5f9;
  --accent-primary: #2563eb;
  --accent-secondary: #1d4ed8;
  --text-primary: #0f172a;
  --text-secondary: #475569;
  --text-muted: #64748b;
  --border-color: #e2e8f0;
  --border-focus: #3b82f6;
  --success: #10b981;
  --error: #ef4444;
  --warning: #f59e0b;
  --card-shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -2px rgba(0, 0, 0, 0.05);
  --font-family: 'Inter', -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
  --radius-sm: 8px;
  --radius-md: 12px;
  --radius-lg: 16px;
  --transition: all 0.2s ease-in-out;
}

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

body {
  font-family: var(--font-family);
  background-color: var(--bg-primary);
  color: var(--text-primary);
  line-height: 1.6;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  overflow-x: hidden;
}

/* Header & Navigation */
header {
  padding: 16px 5%;
  display: flex;
  justify-content: space-between;
  align-items: center;
  border-bottom: 1px solid var(--border-color);
  background-color: var(--bg-secondary);
  position: sticky;
  top: 0;
  z-index: 100;
  box-shadow: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
}

.logo {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 1.35rem;
  font-weight: 700;
  color: var(--accent-primary);
  text-decoration: none;
}

.logo i {
  color: var(--accent-primary);
}

nav a {
  color: var(--text-secondary);
  text-decoration: none;
  font-weight: 500;
  margin-left: 20px;
  transition: var(--transition);
  font-size: 0.95rem;
}

nav a:hover, nav a.active {
  color: var(--accent-primary);
}

.container {
  flex: 1;
  max-width: 1200px;
  width: 90%;
  margin: 40px auto;
  display: flex;
  flex-direction: column;
  justify-content: center;
}

/* Hero Section */
.hero {
  text-align: center;
  margin-bottom: 40px;
}

.hero h1 {
  font-size: 2.5rem;
  font-weight: 800;
  margin-bottom: 12px;
  letter-spacing: -0.02em;
  color: var(--text-primary);
}

.hero p {
  font-size: 1.1rem;
  color: var(--text-secondary);
  max-width: 600px;
  margin: 0 auto;
}

/* Cards & Layouts */
.card {
  background-color: var(--bg-secondary);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  padding: 32px;
  box-shadow: var(--card-shadow);
  max-width: 100%;
  width: 100%;
  margin: 0 auto;
  transition: var(--transition);
}

.card-title {
  font-size: 1.6rem;
  font-weight: 700;
  margin-bottom: 20px;
  text-align: center;
  color: var(--text-primary);
}

/* Buttons */
.btn-group {
  display: flex;
  gap: 16px;
  justify-content: center;
  flex-wrap: wrap;
  margin-top: 24px;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 12px 24px;
  font-size: 0.95rem;
  font-weight: 600;
  border-radius: var(--radius-md);
  cursor: pointer;
  transition: var(--transition);
  text-decoration: none;
  border: none;
  outline: none;
}

.btn-primary {
  background-color: var(--accent-primary);
  color: #ffffff;
  box-shadow: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
}

.btn-primary:hover {
  background-color: var(--accent-secondary);
  transform: translateY(-1px);
}

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

.btn-secondary:hover {
  background-color: var(--bg-tertiary);
  color: var(--text-primary);
  border-color: #cbd5e1;
}

.btn-danger {
  background-color: rgba(239, 68, 68, 0.05);
  color: var(--error);
  border: 1px solid rgba(239, 68, 68, 0.15);
}

.btn-danger:hover {
  background-color: var(--error);
  color: #ffffff;
  transform: translateY(-1px);
}

.btn-sm {
  padding: 8px 16px;
  font-size: 0.875rem;
  border-radius: var(--radius-sm);
}

/* Forms */
.form-group {
  margin-bottom: 18px;
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.form-group label {
  font-size: 0.875rem;
  font-weight: 500;
  color: var(--text-secondary);
}

.form-control {
  background-color: var(--bg-secondary);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  padding: 12px;
  color: var(--text-primary);
  font-size: 0.95rem;
  font-family: var(--font-family);
  outline: none;
  transition: var(--transition);
}

.form-control:focus {
  border-color: var(--border-focus);
  box-shadow: 0 0 0 3px rgba(59, 130, 246, 0.15);
}

.form-control::placeholder {
  color: var(--text-muted);
}

select.form-control {
  cursor: pointer;
  appearance: none;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' fill='none' viewBox='0 0 24 24' stroke='%2394a3b8'%3E%3Cpath stroke-linecap='round' stroke-linejoin='round' stroke-width='2' d='M19 9l-7 7-7-7'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 12px center;
  background-size: 16px;
  padding-right: 40px;
}

/* Profile Display Styles */
.profile-card {
  width: 100%;
}

.profile-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 20px;
  margin-bottom: 24px;
}

@media (max-width: 600px) {
  .profile-grid {
    grid-template-columns: 1fr;
    gap: 14px;
  }
}

.profile-field {
  background-color: var(--bg-tertiary);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  padding: 14px;
}

.profile-field-label {
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--text-muted);
  margin-bottom: 2px;
}

.profile-field-value {
  font-size: 1rem;
  font-weight: 600;
  color: var(--text-primary);
}

.profile-header-icon {
  width: 72px;
  height: 72px;
  background-color: #eff6ff;
  border: 1px solid rgba(59, 130, 246, 0.2);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto 16px;
  color: var(--accent-primary);
  font-size: 2rem;
}

/* Alert Boxes */
.alert {
  padding: 14px;
  border-radius: var(--radius-md);
  margin-bottom: 20px;
  display: flex;
  align-items: center;
  gap: 12px;
  font-size: 0.9rem;
}

.alert-success {
  background-color: rgba(16, 185, 129, 0.1);
  border: 1px solid rgba(16, 185, 129, 0.2);
  color: var(--success);
}

.alert-danger {
  background-color: rgba(239, 68, 68, 0.1);
  border: 1px solid rgba(239, 68, 68, 0.2);
  color: var(--error);
}

.alert-warning {
  background-color: rgba(245, 158, 11, 0.1);
  border: 1px solid rgba(245, 158, 11, 0.2);
  color: var(--warning);
}

/* Admin Dashboard Table and Layout */
.admin-container {
  max-width: 100%;
  width: 96%;
  margin: 30px auto;
  justify-content: flex-start;
}

.admin-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 24px;
  flex-wrap: wrap;
  gap: 16px;
}

.admin-tabs {
  display: flex;
  border-bottom: 1px solid var(--border-color);
  margin-bottom: 24px;
  gap: 6px;
}

.tab-btn {
  background: none;
  border: none;
  color: var(--text-secondary);
  font-size: 0.95rem;
  font-weight: 600;
  padding: 10px 16px;
  cursor: pointer;
  position: relative;
  transition: var(--transition);
}

.tab-btn:hover {
  color: var(--text-primary);
}

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

.tab-btn.active::after {
  content: '';
  position: absolute;
  bottom: -1px;
  left: 0;
  right: 0;
  height: 2px;
  background-color: var(--accent-primary);
}

.tab-content {
  display: none;
}

.tab-content.active {
  display: block;
}

/* Table Design */
.table-responsive {
  width: 100%;
  overflow-x: auto;
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  background-color: var(--bg-secondary);
  box-shadow: var(--card-shadow);
}

table {
  width: 100%;
  border-collapse: collapse;
  text-align: left;
  font-size: 0.9rem;
}

th {
  background-color: var(--bg-tertiary);
  border-bottom: 1px solid var(--border-color);
  padding: 14px 18px;
  font-weight: 600;
  color: var(--text-secondary);
}

td {
  padding: 14px 18px;
  border-bottom: 1px solid var(--border-color);
  color: var(--text-primary);
}

tr:last-child td {
  border-bottom: none;
}

tr:hover td {
  background-color: var(--bg-primary);
}

.actions-cell {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
}

/* Modals */
.modal {
  display: none;
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background-color: rgba(15, 23, 42, 0.4);
  backdrop-filter: blur(4px);
  z-index: 1000;
  justify-content: center;
  align-items: center;
  padding: 20px;
}

.modal-content {
  background-color: var(--bg-secondary);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  width: 100%;
  max-width: 550px;
  box-shadow: 0 20px 25px -5px rgba(0, 0, 0, 0.1), 0 10px 10px -5px rgba(0, 0, 0, 0.04);
  overflow: hidden;
  animation: modalFadeIn 0.2s ease-out;
}

@keyframes modalFadeIn {
  from {
    transform: scale(0.95);
    opacity: 0;
  }
  to {
    transform: scale(1);
    opacity: 1;
  }
}

.modal-header {
  padding: 16px 20px;
  border-bottom: 1px solid var(--border-color);
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.modal-header h3 {
  font-size: 1.15rem;
  font-weight: 700;
  color: var(--text-primary);
}

.modal-close {
  background: none;
  border: none;
  color: var(--text-secondary);
  font-size: 1.4rem;
  cursor: pointer;
  transition: var(--transition);
}

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

.modal-body {
  padding: 20px;
}

.modal-footer {
  padding: 12px 20px;
  border-top: 1px solid var(--border-color);
  display: flex;
  justify-content: flex-end;
  gap: 10px;
}

/* QR Tab Styling */
.qr-container {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  text-align: center;
  background-color: var(--bg-secondary);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  padding: 32px;
  box-shadow: var(--card-shadow);
  max-width: 450px;
  margin: 0 auto;
}

.qr-code-wrapper {
  background-color: white;
  padding: 16px;
  border-radius: var(--radius-md);
  margin: 20px 0;
  display: inline-block;
  border: 1px solid var(--border-color);
}

.qr-code-wrapper canvas {
  display: block;
}

.qr-url {
  font-family: monospace;
  background-color: var(--bg-tertiary);
  padding: 8px 16px;
  border-radius: var(--radius-sm);
  color: var(--accent-primary);
  margin-bottom: 20px;
  word-break: break-all;
  border: 1px solid var(--border-color);
}

/* Form Search Controls */
.search-controls {
  display: flex;
  gap: 16px;
  margin-bottom: 20px;
  flex-wrap: wrap;
}

.search-input-wrapper {
  position: relative;
  flex: 1;
  min-width: 250px;
}

.search-input-wrapper input {
  width: 100%;
  padding-left: 36px;
}

.search-icon {
  position: absolute;
  left: 12px;
  top: 50%;
  transform: translateY(-50%);
  color: var(--text-muted);
}

/* Footer styling */
footer {
  text-align: center;
  padding: 20px;
  color: var(--text-muted);
  font-size: 0.85rem;
  border-top: 1px solid var(--border-color);
  margin-top: auto;
  background-color: var(--bg-secondary);
}

/* Custom utility configurations */
.text-center { text-align: center; }
.mb-20 { margin-bottom: 20px; }
.mt-10 { margin-top: 10px; }
.hidden { display: none; }

/* Auto-capitalization for inputs */
.vehicle-number-input {
  text-transform: uppercase;
}

/* Mobile Responsive Overrides */
@media (max-width: 768px) {
  header {
    flex-direction: column;
    gap: 12px;
    padding: 16px 4%;
    text-align: center;
  }

  header nav {
    gap: 16px;
  }

  .admin-container {
    width: 94%;
    margin: 15px auto;
  }

  .admin-tabs {
    overflow-x: auto;
    white-space: nowrap;
    -webkit-overflow-scrolling: touch;
    padding-bottom: 6px;
  }

  .tab-btn {
    flex-shrink: 0;
    font-size: 0.9rem;
    padding: 8px 12px;
  }

  /* Form row and settings grid collapses */
  #settingsForm div[style*="grid-template-columns"],
  #viewModal div[style*="grid-template-columns"],
  .form-row[style*="grid-template-columns"] {
    grid-template-columns: 1fr !important;
    gap: 12px !important;
  }

  #viewModal div[style*="grid-column"] {
    grid-column: span 1 !important;
  }

  /* Search controls collapses */
  .search-controls {
    flex-direction: column !important;
    align-items: stretch !important;
    gap: 12px !important;
  }

  .search-controls button {
    width: 100%;
  }

  /* Actions list wrapping */
  .actions-cell {
    display: flex;
    flex-wrap: wrap;
    gap: 6px;
  }

  .actions-cell > * {
    flex: 1;
    min-width: 80px;
    text-align: center;
  }
}