/* -------------------------
   DRIVAH ADMIN - UNIVERSAL THEME SYSTEM
   Unified color coding and design for ALL admin pages
   Replaces all inconsistent stylesheets
   --------------------------*/

/* -------------------------
   CSS VARIABLES - UNIFIED COLOR SYSTEM
   --------------------------*/
:root {
  /* Primary Brand Colors */
  --primary-50: #eff6ff;
  --primary-100: #dbeafe;
  --primary-200: #bfdbfe;
  --primary-300: #93c5fd;
  --primary-400: #60a5fa;
  --primary-500: #3b82f6;
  --primary-600: #2563eb;
  --primary-700: #1d4ed8;
  --primary-800: #1e40af;
  --primary-900: #1e3a8a;

  /* Semantic Colors */
  --success-50: #ecfdf5;
  --success-100: #d1fae5;
  --success-500: #10b981;
  --success-600: #059669;
  --success-700: #047857;

  --warning-50: #fffbeb;
  --warning-100: #fef3c7;
  --warning-500: #f59e0b;
  --warning-600: #d97706;
  --warning-700: #b45309;

  --danger-50: #fef2f2;
  --danger-100: #fee2e2;
  --danger-500: #ef4444;
  --danger-600: #dc2626;
  --danger-700: #b91c1c;

  --info-50: #ecfeff;
  --info-100: #dbeafe;
  --info-500: #06b6d4;
  --info-600: #0891b2;
  --info-700: #0e7490;

  /* Neutral Colors */
  --gray-50: #f9fafb;
  --gray-100: #f3f4f6;
  --gray-200: #e5e7eb;
  --gray-300: #d1d5db;
  --gray-400: #9ca3af;
  --gray-500: #6b7280;
  --gray-600: #4b5563;
  --gray-700: #374151;
  --gray-800: #1f2937;
  --gray-900: #111827;

  /* Text Colors */
  --text-primary: var(--gray-900);
  --text-secondary: var(--gray-600);
  --text-muted: var(--gray-500);
  --text-inverse: #ffffff;

  /* Background Colors */
  --bg-primary: #ffffff;
  --bg-secondary: var(--gray-50);
  --bg-tertiary: var(--gray-100);

  /* Border Colors */
  --border-primary: var(--gray-200);
  --border-secondary: var(--gray-300);
  --border-focus: var(--primary-500);

  /* Shadow System */
  --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
  --shadow: 0 1px 3px 0 rgba(0, 0, 0, 0.1), 0 1px 2px 0 rgba(0, 0, 0, 0.06);
  --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
  --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -2px rgba(0, 0, 0, 0.05);
  --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.1), 0 10px 10px -5px rgba(0, 0, 0, 0.04);

  /* Typography */
  --font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  --font-mono: 'JetBrains Mono', 'Fira Code', Consolas, monospace;

  /* Spacing Scale */
  --space-1: 0.25rem;
  --space-2: 0.5rem;
  --space-3: 0.75rem;
  --space-4: 1rem;
  --space-5: 1.25rem;
  --space-6: 1.5rem;
  --space-8: 2rem;
  --space-10: 2.5rem;
  --space-12: 3rem;
  --space-16: 4rem;
  --space-20: 5rem;
  --space-24: 6rem;

  /* Border Radius */
  --radius-sm: 0.25rem;
  --radius: 0.375rem;
  --radius-md: 0.5rem;
  --radius-lg: 0.75rem;
  --radius-xl: 1rem;
  --radius-2xl: 1.5rem;
  --radius-3xl: 2rem;

  /* Transitions */
  --transition-fast: 150ms ease;
  --transition: 200ms ease;
  --transition-slow: 300ms ease;
}

/* -------------------------
   GLOBAL RESET & BASE STYLES
   --------------------------*/
* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

html {
  font-size: 16px;
  scroll-behavior: smooth;
}

body {
  font-family: var(--font-family);
  font-size: 14px;
  line-height: 1.5;
  color: var(--text-primary);
  background: linear-gradient(135deg, var(--bg-secondary) 0%, var(--bg-tertiary) 100%);
  min-height: 100vh;
  padding-top: 73px; /* Account for fixed navigation */
}

/* Prevent image overflow */
img, canvas, svg {
  max-width: 100%;
  height: auto;
}

/* -------------------------
   UNIVERSAL NAVIGATION SYSTEM
   --------------------------*/
.admin-nav {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  background: var(--bg-primary);
  border-bottom: 1px solid var(--border-primary);
  box-shadow: var(--shadow);
}

.nav-container {
  max-width: 1600px;
  margin: 0 auto;
  padding: 0 var(--space-6);
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 73px;
}

.nav-brand {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  flex-shrink: 0;
  text-decoration: none;
  color: var(--text-primary);
  font-weight: 800;
  font-size: 18px;
  letter-spacing: -0.01em;
}

.nav-brand:hover {
  color: var(--primary-600);
}

.brand-logo {
  width: 48px;
  height: 48px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--bg-secondary);
  border: 1px solid var(--border-primary);
  border-radius: var(--radius-xl);
  font-size: 24px;
}

.brand-text {
  display: flex;
  flex-direction: column;
}

.brand-name {
  font-size: 18px;
  font-weight: 800;
  color: var(--text-primary);
  letter-spacing: -0.01em;
  line-height: 1.2;
}

.brand-desc {
  font-size: 12px;
  font-weight: 500;
  color: var(--text-muted);
  line-height: 1.2;
}

.nav-menu {
  display: flex;
  align-items: center;
  gap: var(--space-1);
  flex: 1;
  justify-content: center;
  overflow-x: auto;
  scrollbar-width: thin;
  scrollbar-color: var(--border-primary) transparent;
}

.nav-menu::-webkit-scrollbar {
  height: 4px;
}

.nav-menu::-webkit-scrollbar-track {
  background: transparent;
}

.nav-menu::-webkit-scrollbar-thumb {
  background: var(--border-primary);
  border-radius: var(--radius-sm);
}

.nav-link {
  display: flex;
  align-items: center;
  padding: var(--space-2) var(--space-4);
  border-radius: var(--radius);
  text-decoration: none;
  font-size: 13px;
  font-weight: 600;
  color: var(--text-muted);
  transition: all var(--transition);
  position: relative;
  white-space: nowrap;
  flex-shrink: 0;
}

.nav-link:hover {
  color: var(--text-primary);
  background: var(--bg-secondary);
}

.nav-link.active {
  color: var(--text-primary);
  background: var(--primary-50);
}

.nav-link.active::after {
  content: '';
  position: absolute;
  bottom: -20px;
  left: 50%;
  transform: translateX(-50%);
  width: 32px;
  height: 3px;
  background: var(--primary-600);
  border-radius: var(--radius-sm);
}

.nav-actions {
  display: flex;
  align-items: center;
  gap: var(--space-4);
  flex-shrink: 0;
}

.nav-btn {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  padding: var(--space-2) var(--space-4);
  border: 1px solid var(--border-primary);
  border-radius: var(--radius);
  background: var(--bg-primary);
  color: var(--text-muted);
  font-size: 14px;
  font-weight: 600;
  cursor: pointer;
  transition: all var(--transition);
}

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

.btn-icon {
  font-size: 16px;
}

.btn-text {
  font-size: 14px;
}

.nav-user {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  padding: var(--space-2) var(--space-3);
  border-radius: var(--radius-xl);
  background: var(--bg-secondary);
  border: 1px solid var(--border-primary);
  cursor: pointer;
  transition: all var(--transition);
}

.nav-user:hover {
  background: var(--bg-tertiary);
  border-color: var(--border-secondary);
}

.user-avatar {
  width: 36px;
  height: 36px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--border-primary);
  border-radius: var(--radius);
  font-size: 16px;
  color: var(--text-muted);
}

.user-info {
  display: flex;
  flex-direction: column;
  gap: 2px;
}

.user-name {
  font-size: 14px;
  font-weight: 700;
  color: var(--text-primary);
  line-height: 1.2;
}

.user-role {
  font-size: 11px;
  font-weight: 500;
  color: var(--text-muted);
  line-height: 1.2;
}

.user-menu-btn {
  background: none;
  border: none;
  color: var(--text-muted);
  font-size: 12px;
  cursor: pointer;
  padding: var(--space-1);
}

.mobile-menu-btn {
  display: none;
  flex-direction: column;
  gap: var(--space-1);
  background: none;
  border: none;
  cursor: pointer;
  padding: var(--space-2);
}

.mobile-menu-btn span {
  width: 24px;
  height: 2px;
  background: var(--text-muted);
  border-radius: var(--radius-sm);
  transition: all var(--transition);
}

.mobile-menu-btn:hover span {
  background: var(--text-primary);
}

/* -------------------------
   PAGE LAYOUT SYSTEM
   --------------------------*/
.admin-page {
  max-width: 1600px;
  margin: 0 auto;
  padding: var(--space-8) var(--space-6);
  font-family: var(--font-family);
}

.page-header {
  margin-bottom: var(--space-8);
}

.page-header h1 {
  font-size: 36px;
  font-weight: 800;
  color: var(--text-primary);
  margin: 0 0 var(--space-2) 0;
  letter-spacing: -0.02em;
}

.page-header p {
  font-size: 18px;
  color: var(--text-secondary);
  margin: 0;
  font-weight: 500;
}

.page-actions {
  display: flex;
  gap: var(--space-3);
  align-items: center;
  margin-top: var(--space-5);
}

.page-actions input[type="date"] {
  padding: var(--space-3) var(--space-4);
  border: 1px solid var(--border-primary);
  border-radius: var(--radius);
  font-size: 14px;
  font-weight: 500;
  background: var(--bg-primary);
  color: var(--text-primary);
}

/* -------------------------
   CARD SYSTEM
   --------------------------*/
.panel-card {
  background: var(--bg-primary);
  border: 1px solid var(--border-primary);
  border-radius: var(--radius-xl);
  box-shadow: var(--shadow);
  overflow: hidden;
  transition: all var(--transition);
}

.panel-card:hover {
  box-shadow: var(--shadow-lg);
}

.panel-card h3 {
  font-size: 18px;
  font-weight: 700;
  color: var(--text-primary);
  margin: 0 0 var(--space-4) 0;
  letter-spacing: -0.01em;
}

.section-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: var(--space-5);
}

/* -------------------------
   BUTTON SYSTEM
   --------------------------*/
.btn {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  padding: var(--space-3) var(--space-5);
  border: none;
  border-radius: var(--radius);
  font-size: 14px;
  font-weight: 600;
  cursor: pointer;
  transition: all var(--transition);
  text-decoration: none;
}

.btn-primary {
  background: var(--primary-600);
  color: var(--text-inverse);
}

.btn-primary:hover {
  background: var(--primary-700);
}

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

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

.btn-success {
  background: var(--success-600);
  color: var(--text-inverse);
}

.btn-success:hover {
  background: var(--success-700);
}

.btn-danger {
  background: var(--danger-600);
  color: var(--text-inverse);
}

.btn-danger:hover {
  background: var(--danger-700);
}

.btn-sm {
  padding: var(--space-2) var(--space-3);
  font-size: 12px;
  font-weight: 600;
  border-radius: var(--radius);
}

/* -------------------------
   TABLE SYSTEM
   --------------------------*/
.table-wrap {
  overflow-x: auto;
  border-radius: var(--radius-lg);
  border: 1px solid var(--border-primary);
}

table {
  width: 100%;
  border-collapse: collapse;
  background: var(--bg-primary);
}

th {
  background: var(--bg-secondary);
  padding: var(--space-3) var(--space-4);
  text-align: left;
  font-size: 12px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  color: var(--text-muted);
  border-bottom: 2px solid var(--border-primary);
}

td {
  padding: var(--space-3) var(--space-4);
  border-bottom: 1px solid var(--border-primary);
  font-size: 14px;
}

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

/* -------------------------
   STATUS BADGES
   --------------------------*/
.status-badge {
  display: inline-flex;
  align-items: center;
  padding: var(--space-1) var(--space-2);
  font-size: 11px;
  font-weight: 600;
  border-radius: 999px;
  text-transform: uppercase;
  letter-spacing: 0.04em;
}

.status-badge.active {
  background: var(--success-100);
  color: var(--success-700);
}

.status-badge.pending {
  background: var(--warning-100);
  color: var(--warning-700);
}

.status-badge.inactive {
  background: var(--gray-100);
  color: var(--gray-700);
}

.status-badge.online {
  background: var(--success-100);
  color: var(--success-700);
}

.status-badge.offline {
  background: var(--gray-100);
  color: var(--gray-700);
}

.status-badge.busy {
  background: var(--warning-100);
  color: var(--warning-700);
}

/* -------------------------
   ALERT SYSTEM
   --------------------------*/
.alert-item {
  padding: var(--space-3) var(--space-4);
  border-radius: var(--radius);
  font-size: 13px;
  font-weight: 500;
  border-left: 3px solid var(--border-primary);
  margin-bottom: var(--space-2);
}

.alert-item.success {
  background: var(--success-50);
  color: var(--success-700);
  border-left-color: var(--success-500);
}

.alert-item.warning {
  background: var(--warning-50);
  color: var(--warning-700);
  border-left-color: var(--warning-500);
}

.alert-item.danger {
  background: var(--danger-50);
  color: var(--danger-700);
  border-left-color: var(--danger-500);
}

.alert-item.info {
  background: var(--info-50);
  color: var(--info-700);
  border-left-color: var(--info-500);
}

/* -------------------------
   FORM SYSTEM
   --------------------------*/
.form-control {
  width: 100%;
  padding: var(--space-3) var(--space-4);
  border: 1px solid var(--border-primary);
  border-radius: var(--radius);
  font-size: 14px;
  background: var(--bg-primary);
  color: var(--text-primary);
  transition: all var(--transition);
}

.form-control:focus {
  outline: none;
  border-color: var(--border-focus);
  box-shadow: 0 0 0 3px var(--primary-100);
}

.form-label {
  display: block;
  font-size: 14px;
  font-weight: 600;
  color: var(--text-primary);
  margin-bottom: var(--space-2);
}

/* -------------------------
   LOADING STATES
   --------------------------*/
.loading {
  opacity: 0.6;
  pointer-events: none;
}

.loading::after {
  content: '';
  position: absolute;
  top: 50%;
  left: 50%;
  width: 20px;
  height: 20px;
  margin: -10px 0 0 -10px;
  border: 2px solid var(--border-primary);
  border-top: 2px solid var(--primary-600);
  border-radius: 50%;
  animation: spin 1s linear infinite;
}

@keyframes spin {
  0% { transform: rotate(0deg); }
  100% { transform: rotate(360deg); }
}

/* -------------------------
   RESPONSIVE DESIGN
   --------------------------*/
@media (max-width: 1200px) {
  .nav-container {
    padding: 0 var(--space-5);
  }
  
  .admin-page {
    padding: var(--space-6) var(--space-5);
  }
  
  .nav-menu {
    gap: var(--space-1);
  }
  
  .nav-link {
    padding: var(--space-2) var(--space-3);
    font-size: 12px;
  }
}

@media (max-width: 768px) {
  .mobile-menu-btn {
    display: flex;
  }
  
  .nav-menu {
    position: fixed;
    top: 73px;
    left: 0;
    right: 0;
    background: var(--bg-primary);
    border-bottom: 1px solid var(--border-primary);
    box-shadow: var(--shadow-lg);
    flex-direction: column;
    gap: 0;
    padding: var(--space-3) var(--space-5);
    transform: translateY(-100%);
    opacity: 0;
    visibility: hidden;
    transition: all var(--transition-slow);
    z-index: 999;
    overflow-y: auto;
    max-height: calc(100vh - 73px);
  }
  
  .nav-menu.active {
    transform: translateY(0);
    opacity: 1;
    visibility: visible;
  }
  
  .nav-link {
    width: 100%;
    padding: var(--space-3) var(--space-4);
    border-radius: var(--radius);
    text-align: left;
    border-bottom: 1px solid var(--border-primary);
    font-size: 14px;
  }
  
  .nav-link.active::after {
    display: none;
  }
  
  .nav-link.active {
    background: var(--bg-secondary);
    border-left: 3px solid var(--primary-600);
  }
  
  .btn-text {
    display: none;
  }
  
  .user-info {
    display: none;
  }
  
  .nav-container {
    padding: 0 var(--space-4);
  }
  
  .admin-page {
    padding: var(--space-5) var(--space-4);
  }
  
  .page-header h1 {
    font-size: 28px;
  }
  
  .page-header p {
    font-size: 16px;
  }
  
  .page-actions {
    flex-wrap: wrap;
    gap: var(--space-2);
  }
  
  .page-actions input[type="date"] {
    flex: 1;
    min-width: 140px;
  }
}

@media (max-width: 480px) {
  .brand-desc {
    display: none;
  }
  
  .nav-actions {
    gap: var(--space-3);
  }
  
  .nav-btn {
    padding: var(--space-2) var(--space-3);
  }
  
  .nav-user {
    padding: var(--space-2);
  }
  
  .user-avatar {
    width: 32px;
    height: 32px;
    font-size: 14px;
  }
  
  .page-header h1 {
    font-size: 24px;
  }
  
  .page-header p {
    font-size: 14px;
  }
}

/* -------------------------
   ACCESSIBILITY
   --------------------------*/
.nav-link:focus,
.nav-btn:focus,
.btn:focus,
.form-control:focus,
.mobile-menu-btn:focus {
  outline: 2px solid var(--primary-500);
  outline-offset: 2px;
}

/* -------------------------
   PRINT STYLES
   --------------------------*/
@media print {
  .admin-nav {
    display: none;
  }
  
  body {
    padding-top: 0 !important;
  }
}

/* -------------------------
   LEGACY OVERRIDES
   --------------------------*/
/* Remove old navigation styles */
.top-nav,
.nav-item {
  display: none !important;
}

/* Ensure new navigation takes precedence */
.admin-nav {
  display: flex !important;
}