/* ============================================================
   SmartMeter FieldOps — Production Design System
   Teal/Green Utility Energy Theme
   ============================================================ */

:root {
  /* Primary Brand — Teal/Green (Utility Energy) */
  --primary: #0d9488;
  --primary-hover: #0f766e;
  --primary-dark: #115e59;
  --primary-light: #f0fdfa;
  --primary-50: #f0fdfa;
  --primary-100: #ccfbf1;
  --primary-200: #99f6e4;
  --primary-500: #14b8a6;
  --primary-600: #0d9488;
  --primary-700: #0f766e;
  --primary-rgb: 13, 148, 136;

  /* Accent — Emerald for CTA highlights */
  --accent: #059669;
  --accent-light: #ecfdf5;

  /* Status Semantics */
  --success: #16a34a;
  --success-light: #f0fdf4;
  --warning: #d97706;
  --warning-light: #fffbeb;
  --danger: #dc2626;
  --danger-light: #fef2f2;

  /* Neutral Grayscale — Slate */
  --gray-50: #f8fafc;
  --gray-100: #f1f5f9;
  --gray-200: #e2e8f0;
  --gray-300: #cbd5e1;
  --gray-400: #94a3b8;
  --gray-500: #64748b;
  --gray-600: #475569;
  --gray-700: #334155;
  --gray-800: #1e293b;
  --gray-900: #0f172a;

  /* Typography */
  --font-sans: 'Inter', system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;

  /* Shape & Elevation */
  --radius: 10px;
  --radius-lg: 14px;
  --radius-xl: 20px;
  --shadow-xs: 0 1px 2px rgb(0 0 0 / 0.04);
  --shadow-sm: 0 1px 3px rgb(0 0 0 / 0.06), 0 1px 2px rgb(0 0 0 / 0.04);
  --shadow: 0 4px 6px -1px rgb(0 0 0 / 0.07), 0 2px 4px -2px rgb(0 0 0 / 0.05);
  --shadow-md: 0 6px 16px -4px rgb(0 0 0 / 0.08), 0 2px 6px -2px rgb(0 0 0 / 0.04);
  --shadow-lg: 0 12px 28px -6px rgb(0 0 0 / 0.12), 0 4px 8px -4px rgb(0 0 0 / 0.06);
  --shadow-xl: 0 20px 40px -8px rgb(0 0 0 / 0.15), 0 8px 16px -4px rgb(0 0 0 / 0.08);

  /* Transitions */
  --ease-out: cubic-bezier(0.16, 1, 0.3, 1);
  --ease-spring: cubic-bezier(0.34, 1.56, 0.64, 1);
  --duration-fast: 150ms;
  --duration: 200ms;
  --duration-slow: 300ms;
}

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

body {
  font-family: var(--font-sans);
  background-color: #f5f7fa;
  color: var(--gray-800);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  min-height: 100vh;
  min-height: 100dvh;
}

/* Safe area for notch/gesture phones */
@supports (padding-bottom: env(safe-area-inset-bottom)) {
  body { padding-bottom: env(safe-area-inset-bottom); }
}

a { color: var(--primary); text-decoration: none; }
a:hover { color: var(--primary-hover); }

/* ============================================================
   NAVBAR
   ============================================================ */
.navbar {
  background: linear-gradient(135deg, #ffffff 0%, #f8fffe 100%);
  border-bottom: 1px solid var(--gray-200);
  padding: 0.65rem 1.25rem;
  display: flex;
  justify-content: space-between;
  align-items: center;
  position: sticky;
  top: 0;
  z-index: 40;
  box-shadow: 0 1px 3px rgb(0 0 0 / 0.04), 0 1px 0 rgb(13 148 136 / 0.04);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
}

.nav-brand {
  display: flex;
  align-items: center;
  gap: 0.55rem;
  font-size: 1.1rem;
  font-weight: 800;
  color: var(--primary-dark);
  text-decoration: none;
  letter-spacing: -0.01em;
}

.nav-brand svg {
  background: var(--primary-light);
  padding: 4px;
  border-radius: 8px;
  color: var(--primary);
}

.nav-user {
  display: flex;
  align-items: center;
  gap: 0.75rem;
}

/* ============================================================
   BADGES
   ============================================================ */
.badge {
  display: inline-flex;
  align-items: center;
  gap: 0.2rem;
  padding: 0.15rem 0.55rem;
  border-radius: 9999px;
  font-size: 0.7rem;
  font-weight: 700;
  letter-spacing: 0.01em;
  white-space: nowrap;
}

.badge-primary { background-color: var(--primary-light); color: var(--primary); }
.badge-success { background-color: var(--success-light); color: var(--success); }
.badge-warning { background-color: var(--warning-light); color: var(--warning); }
.badge-danger { background-color: var(--danger-light); color: var(--danger); }
.badge-gray { background-color: var(--gray-100); color: var(--gray-600); border: 1px solid var(--gray-200); }

/* ============================================================
   BUTTONS
   ============================================================ */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.4rem;
  padding: 0.55rem 1.1rem;
  font-size: 0.875rem;
  font-weight: 600;
  border-radius: var(--radius);
  border: 1.5px solid transparent;
  cursor: pointer;
  transition: all var(--duration) var(--ease-out);
  text-decoration: none;
  font-family: inherit;
  line-height: 1.4;
  position: relative;
  overflow: hidden;
}

.btn:active { transform: scale(0.97); }
.btn:focus-visible { outline: 2px solid var(--primary); outline-offset: 2px; }
.btn:disabled { opacity: 0.55; cursor: not-allowed; transform: none; }

.btn-primary {
  background: linear-gradient(135deg, var(--primary) 0%, var(--primary-hover) 100%);
  color: #ffffff;
  box-shadow: 0 1px 3px rgb(13 148 136 / 0.25);
}
.btn-primary:hover { background: linear-gradient(135deg, var(--primary-hover) 0%, var(--primary-dark) 100%); box-shadow: 0 2px 8px rgb(13 148 136 / 0.3); }

.btn-success {
  background: linear-gradient(135deg, #16a34a 0%, #15803d 100%);
  color: #ffffff;
  box-shadow: 0 1px 3px rgb(22 163 74 / 0.25);
}
.btn-success:hover { background: linear-gradient(135deg, #15803d 0%, #166534 100%); }

.btn-outline {
  background-color: #ffffff;
  border-color: var(--gray-200);
  color: var(--gray-700);
}
.btn-outline:hover { background-color: var(--gray-50); border-color: var(--gray-300); box-shadow: var(--shadow-xs); }

.btn-danger { background-color: var(--danger-light); color: var(--danger); border-color: #fca5a5; }
.btn-danger:hover { background-color: #fee2e2; }

.btn-warning { background: linear-gradient(135deg, #d97706 0%, #b45309 100%); color: #ffffff; }

.btn-sm { padding: 0.3rem 0.65rem; font-size: 0.78rem; }
.btn-block { width: 100%; }

/* ============================================================
   CONTAINER
   ============================================================ */
.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 1rem;
}

/* ============================================================
   TOGGLE SWITCH (Pending / Attended)
   ============================================================ */
.toggle-pill-container {
  background-color: var(--gray-100);
  border: 1px solid var(--gray-200);
  border-radius: 9999px;
  padding: 3px;
  display: inline-flex;
  position: relative;
  user-select: none;
}

.toggle-pill-btn {
  padding: 0.4rem 1.1rem;
  border-radius: 9999px;
  font-size: 0.825rem;
  font-weight: 600;
  border: none;
  cursor: pointer;
  background: transparent;
  color: var(--gray-500);
  transition: all var(--duration) var(--ease-out);
  display: flex;
  align-items: center;
  gap: 0.35rem;
  font-family: inherit;
}

.toggle-pill-btn.active {
  background-color: #ffffff;
  color: var(--gray-900);
  box-shadow: var(--shadow-sm);
}

.toggle-pill-btn.active.pending-active { color: var(--warning); }
.toggle-pill-btn.active.attended-active { color: var(--success); }

/* ============================================================
   FOLDER CARD (Accordion)
   ============================================================ */
.folder-card {
  background-color: #ffffff;
  border-radius: var(--radius-lg);
  border: 1px solid var(--gray-200);
  margin-bottom: 0.75rem;
  overflow: hidden;
  box-shadow: var(--shadow-xs);
  transition: border-color var(--duration) ease, box-shadow var(--duration) ease;
}

.folder-card:hover { border-color: var(--gray-300); }

.folder-header {
  padding: 0.85rem 1.1rem;
  display: flex;
  justify-content: space-between;
  align-items: center;
  cursor: pointer;
  background-color: #ffffff;
  border-bottom: 1px solid transparent;
  transition: background-color var(--duration) ease;
}

.folder-card.open .folder-header {
  border-bottom-color: var(--gray-100);
  background-color: var(--gray-50);
}

.folder-title {
  display: flex;
  align-items: center;
  gap: 0.6rem;
  font-size: 0.95rem;
  font-weight: 700;
  color: var(--gray-800);
}

.folder-body {
  padding: 0.75rem;
  display: none;
  animation: fadeSlideDown var(--duration-slow) var(--ease-out);
}

.folder-card.open .folder-body { display: block; }

.folder-arrow {
  transition: transform var(--duration) var(--ease-out);
  color: var(--gray-400);
}
.folder-card.open .folder-arrow { transform: rotate(180deg); }

/* ============================================================
   METER CARD
   ============================================================ */
.meter-card {
  background-color: #ffffff;
  border: 1px solid var(--gray-200);
  border-left: 3px solid var(--warning);
  border-radius: var(--radius);
  padding: 0.85rem 0.85rem 0.85rem 0.95rem;
  margin-bottom: 0.6rem;
  cursor: pointer;
  transition: all var(--duration) var(--ease-out);
  display: flex;
  flex-direction: column;
  gap: 0.3rem;
  position: relative;
}

.meter-card:hover {
  border-color: var(--primary-200);
  border-left-color: var(--primary);
  transform: translateY(-1px);
  box-shadow: var(--shadow-md);
}

.meter-card:active { transform: translateY(0); }

.meter-card-header {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  gap: 0.5rem;
}

.meter-number {
  font-weight: 700;
  font-size: 0.95rem;
  color: var(--gray-900);
  display: flex;
  align-items: center;
  gap: 0.4rem;
}

.meter-consumer {
  font-size: 0.875rem;
  font-weight: 600;
  color: var(--gray-700);
}

.meter-address {
  font-size: 0.78rem;
  color: var(--gray-500);
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
  line-height: 1.45;
}

/* Attended meter card override */
.meter-card[data-status="attended"] {
  border-left-color: var(--success);
  background: linear-gradient(135deg, #ffffff 0%, #f8fffe 100%);
}

/* ============================================================
   MODAL & BOTTOM SHEET
   ============================================================ */
.modal-overlay {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background-color: rgba(15, 23, 42, 0.55);
  backdrop-filter: blur(4px);
  -webkit-backdrop-filter: blur(4px);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 100;
  padding: 1rem;
  opacity: 0;
  pointer-events: none;
  transition: opacity var(--duration-slow) var(--ease-out);
}

.modal-overlay.active {
  opacity: 1;
  pointer-events: auto;
}

.modal-content {
  background-color: #ffffff;
  border-radius: var(--radius-xl);
  max-width: 600px;
  width: 100%;
  max-height: 90vh;
  display: flex;
  flex-direction: column;
  box-shadow: var(--shadow-xl);
  transform: scale(0.95) translateY(10px);
  transition: transform var(--duration-slow) var(--ease-spring);
}

.modal-overlay.active .modal-content {
  transform: scale(1) translateY(0);
}

/* Mobile bottom sheet */
@media (max-width: 640px) {
  .modal-overlay {
    align-items: flex-end;
    padding: 0;
  }
  .modal-content {
    border-bottom-left-radius: 0;
    border-bottom-right-radius: 0;
    max-height: 92vh;
    transform: translateY(100%);
    transition: transform var(--duration-slow) var(--ease-out);
  }
  .modal-overlay.active .modal-content {
    transform: translateY(0);
  }
}

/* Drag handle for mobile bottom sheet */
.modal-drag-handle {
  display: none;
}
@media (max-width: 640px) {
  .modal-drag-handle {
    display: block;
    width: 36px;
    height: 4px;
    background: var(--gray-300);
    border-radius: 9999px;
    margin: 8px auto 4px;
  }
}

.modal-header {
  padding: 1rem 1.25rem;
  border-bottom: 1px solid var(--gray-100);
  display: flex;
  justify-content: space-between;
  align-items: center;
  position: sticky;
  top: 0;
  background-color: #ffffff;
  z-index: 10;
  border-top-left-radius: var(--radius-xl);
  border-top-right-radius: var(--radius-xl);
}

.modal-body {
  padding: 1.25rem;
  overflow-y: auto;
  display: flex;
  flex-direction: column;
  gap: 1rem;
  overscroll-behavior: contain;
}

.modal-footer {
  padding: 0.85rem 1.25rem;
  border-top: 1px solid var(--gray-100);
  background: linear-gradient(180deg, var(--gray-50) 0%, #ffffff 100%);
  display: flex;
  gap: 0.75rem;
  justify-content: flex-end;
  border-bottom-left-radius: var(--radius-xl);
  border-bottom-right-radius: var(--radius-xl);
}

/* ============================================================
   FORM CONTROLS
   ============================================================ */
.form-group {
  display: flex;
  flex-direction: column;
  gap: 0.3rem;
}

.form-label {
  font-size: 0.8rem;
  font-weight: 600;
  color: var(--gray-600);
  letter-spacing: 0.01em;
}

.form-control {
  padding: 0.6rem 0.85rem;
  border: 1.5px solid var(--gray-200);
  border-radius: var(--radius);
  font-size: 0.9rem;
  font-family: inherit;
  outline: none;
  transition: border-color var(--duration-fast) ease, box-shadow var(--duration-fast) ease;
  background: #ffffff;
  color: var(--gray-800);
}

.form-control:focus {
  border-color: var(--primary);
  box-shadow: 0 0 0 3px rgba(var(--primary-rgb), 0.12);
}

.form-control::placeholder { color: var(--gray-400); }

/* Checkbox styling */
input[type="checkbox"] {
  accent-color: var(--primary);
}

/* ============================================================
   DOUBLE CONFIRMATION DIALOG
   ============================================================ */
.confirm-box {
  background-color: var(--warning-light);
  border: 1px solid #fde68a;
  border-radius: var(--radius);
  padding: 1rem;
  margin-top: 0.5rem;
  display: none;
  animation: fadeSlideDown var(--duration) var(--ease-out);
}
.confirm-box.active { display: block; }

/* ============================================================
   DASHBOARD STATS CARDS
   ============================================================ */
.stats-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 0.85rem;
  margin-bottom: 1.5rem;
}

.stat-card {
  background-color: #ffffff;
  padding: 1.15rem 1.25rem;
  border-radius: var(--radius-lg);
  border: 1px solid var(--gray-200);
  box-shadow: var(--shadow-xs);
  position: relative;
  overflow: hidden;
  transition: box-shadow var(--duration) ease;
}

.stat-card:hover { box-shadow: var(--shadow-sm); }

/* Color accent left border for stat cards */
.stat-card::before {
  content: '';
  position: absolute;
  left: 0;
  top: 0;
  bottom: 0;
  width: 3px;
  background: var(--primary);
  border-radius: 0 2px 2px 0;
}

.stat-card.stat-success::before { background: var(--success); }
.stat-card.stat-warning::before { background: var(--warning); }
.stat-card.stat-danger::before { background: var(--danger); }
.stat-card.stat-primary::before { background: var(--primary); }

.stat-card-title {
  font-size: 0.75rem;
  font-weight: 600;
  color: var(--gray-500);
  text-transform: uppercase;
  letter-spacing: 0.04em;
}

.stat-card-value {
  font-size: 1.85rem;
  font-weight: 800;
  color: var(--gray-900);
  margin-top: 0.15rem;
  line-height: 1.2;
}

/* ============================================================
   TABLES
   ============================================================ */
.table-container {
  background-color: #ffffff;
  border-radius: var(--radius-lg);
  border: 1px solid var(--gray-200);
  overflow-x: auto;
  box-shadow: var(--shadow-xs);
}

.data-table {
  width: 100%;
  border-collapse: collapse;
  text-align: left;
  font-size: 0.85rem;
}

.data-table th {
  background-color: var(--gray-50);
  padding: 0.7rem 1rem;
  font-weight: 600;
  color: var(--gray-500);
  border-bottom: 1px solid var(--gray-200);
  font-size: 0.78rem;
  text-transform: uppercase;
  letter-spacing: 0.03em;
  white-space: nowrap;
}

.data-table td {
  padding: 0.7rem 1rem;
  border-bottom: 1px solid var(--gray-100);
  color: var(--gray-700);
}

.data-table tr:last-child td { border-bottom: none; }
.data-table tbody tr:nth-child(even) { background-color: var(--gray-50); }
.data-table tr:hover { background-color: rgba(var(--primary-rgb), 0.03); }

/* ============================================================
   PROGRESS BAR
   ============================================================ */
.progress-bar-bg {
  background-color: var(--gray-200);
  height: 8px;
  border-radius: 9999px;
  overflow: hidden;
  width: 100%;
}

.progress-bar-fill {
  background: linear-gradient(90deg, var(--primary) 0%, var(--accent) 100%);
  height: 100%;
  border-radius: 9999px;
  transition: width 0.4s var(--ease-out);
}

/* ============================================================
   TAB NAVIGATION
   ============================================================ */
.tabs {
  display: flex;
  gap: 0;
  border-bottom: 2px solid var(--gray-200);
  margin-bottom: 1.25rem;
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
}

.tab-btn {
  padding: 0.65rem 1.15rem;
  font-weight: 600;
  font-size: 0.875rem;
  border: none;
  background: transparent;
  color: var(--gray-500);
  cursor: pointer;
  border-bottom: 2px solid transparent;
  margin-bottom: -2px;
  display: flex;
  align-items: center;
  gap: 0.4rem;
  white-space: nowrap;
  transition: color var(--duration) ease, border-color var(--duration) ease;
  font-family: inherit;
}

.tab-btn:hover { color: var(--gray-700); }

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

/* ============================================================
   UPLOAD DROPZONE
   ============================================================ */
.dropzone {
  border: 2px dashed var(--gray-300);
  border-radius: var(--radius-lg);
  padding: 2.5rem 1.5rem;
  text-align: center;
  background-color: var(--gray-50);
  cursor: pointer;
  transition: all var(--duration) ease;
}

.dropzone:hover, .dropzone.dragover {
  border-color: var(--primary);
  background-color: var(--primary-light);
  border-style: solid;
}

.dropzone svg { transition: transform var(--duration) var(--ease-spring); }
.dropzone:hover svg, .dropzone.dragover svg { transform: translateY(-3px); }

/* ============================================================
   MEDIA PREVIEW GRID
   ============================================================ */
.media-preview-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(85px, 1fr));
  gap: 0.5rem;
  margin-top: 0.5rem;
}

.media-thumb {
  width: 100%;
  height: 85px;
  object-fit: cover;
  border-radius: 8px;
  border: 1px solid var(--gray-200);
  transition: transform var(--duration) ease;
}

.media-thumb:hover { transform: scale(1.04); }

/* ============================================================
   SKELETON LOADING PLACEHOLDERS
   ============================================================ */
.skeleton {
  background: linear-gradient(90deg, var(--gray-100) 25%, var(--gray-200) 37%, var(--gray-100) 63%);
  background-size: 400% 100%;
  animation: shimmer 1.4s ease infinite;
  border-radius: var(--radius);
}

.skeleton-card {
  height: 90px;
  margin-bottom: 0.6rem;
  border-radius: var(--radius);
}

.skeleton-line {
  height: 14px;
  border-radius: 6px;
  margin-bottom: 0.5rem;
}

.skeleton-line.w-75 { width: 75%; }
.skeleton-line.w-50 { width: 50%; }
.skeleton-line.w-40 { width: 40%; }

/* ============================================================
   GPS STATUS BAR
   ============================================================ */
.gps-bar {
  background: #ffffff;
  border: 1px solid var(--gray-200);
  border-radius: var(--radius);
  padding: 0.55rem 0.9rem;
  margin-bottom: 0.85rem;
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 0.5rem;
  position: relative;
  overflow: hidden;
}

/* Left accent strip */
.gps-bar::before {
  content: '';
  position: absolute;
  left: 0;
  top: 0;
  bottom: 0;
  width: 3px;
  background: var(--gray-300);
  transition: background var(--duration-slow) ease;
}

.gps-bar.gps-active::before { background: var(--success); }
.gps-bar.gps-pending::before { background: var(--warning); animation: pulse-accent 2s ease infinite; }
.gps-bar.gps-error::before { background: var(--danger); }

/* ============================================================
   TOAST NOTIFICATIONS
   ============================================================ */
.toast {
  padding: 0.7rem 1rem 0.7rem 0.85rem;
  border-radius: var(--radius);
  box-shadow: var(--shadow-lg);
  color: #ffffff;
  font-weight: 600;
  font-size: 0.84rem;
  max-width: 380px;
  display: flex;
  align-items: center;
  gap: 0.55rem;
  position: relative;
  overflow: hidden;
  animation: slideInRight var(--duration-slow) var(--ease-out);
  line-height: 1.4;
}

.toast-success { background-color: #16a34a; }
.toast-error { background-color: #dc2626; }
.toast-warning { background-color: #d97706; }
.toast-info { background-color: var(--primary); }

.toast-icon {
  width: 20px;
  height: 20px;
  flex-shrink: 0;
  display: flex;
  align-items: center;
  justify-content: center;
}

/* Auto-dismiss progress bar at bottom of toast */
.toast-progress {
  position: absolute;
  bottom: 0;
  left: 0;
  height: 3px;
  background: rgba(255, 255, 255, 0.4);
  border-radius: 0 0 var(--radius) var(--radius);
  animation: toastProgress 3.5s linear forwards;
}

/* ============================================================
   AVATAR INITIALS
   ============================================================ */
.avatar-initials {
  width: 34px;
  height: 34px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--primary) 0%, var(--accent) 100%);
  color: #ffffff;
  font-weight: 700;
  font-size: 0.78rem;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  text-transform: uppercase;
  letter-spacing: 0.02em;
}

/* ============================================================
   ANIMATIONS & KEYFRAMES
   ============================================================ */
@keyframes spin {
  from { transform: rotate(0deg); }
  to { transform: rotate(360deg); }
}

@keyframes shimmer {
  0% { background-position: -400% 0; }
  100% { background-position: 400% 0; }
}

@keyframes fadeSlideDown {
  from { opacity: 0; transform: translateY(-6px); }
  to { opacity: 1; transform: translateY(0); }
}

@keyframes slideInRight {
  from { opacity: 0; transform: translateX(40px); }
  to { opacity: 1; transform: translateX(0); }
}

@keyframes toastProgress {
  from { width: 100%; }
  to { width: 0%; }
}

@keyframes pulse-accent {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.5; }
}

@keyframes pulse-dot {
  0%, 100% { transform: scale(1); opacity: 1; }
  50% { transform: scale(1.3); opacity: 0.7; }
}

/* ============================================================
   RESPONSIVE — Mobile-first adjustments
   ============================================================ */
@media (max-width: 640px) {
  .navbar { padding: 0.55rem 0.85rem; }
  .nav-brand { font-size: 1rem; }
  .stats-grid { grid-template-columns: repeat(2, 1fr); gap: 0.6rem; }
  .stat-card { padding: 0.85rem 1rem; }
  .stat-card-value { font-size: 1.5rem; }
  .tabs { gap: 0; }
  .tab-btn { padding: 0.55rem 0.85rem; font-size: 0.8rem; }
  .data-table { font-size: 0.8rem; }
  .data-table th, .data-table td { padding: 0.55rem 0.65rem; }
}

/* ============================================================
   UTILITY CLASSES
   ============================================================ */
.text-center { text-align: center; }
.text-right { text-align: right; }
.font-bold { font-weight: 700; }
.text-sm { font-size: 0.85rem; }
.text-xs { font-size: 0.75rem; }
.text-muted { color: var(--gray-500); }
.mt-1 { margin-top: 0.5rem; }
.mt-2 { margin-top: 1rem; }
.mb-1 { margin-bottom: 0.5rem; }
.mb-2 { margin-bottom: 1rem; }
.gap-sm { gap: 0.4rem; }
.hidden { display: none !important; }