/**
 * Enterprise Theme - Professional Dark/Light Mode
 * Clean, modern, corporate aesthetic
 */

/* ========== CSS VARIABLES ========== */
:root {
  /* Primary 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;

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

  /* Semantic */
  --success: #10b981;
  --success-bg: #d1fae5;
  --warning: #f59e0b;
  --warning-bg: #fef3c7;
  --danger: #ef4444;
  --danger-bg: #fee2e2;
  --info: #3b82f6;
  --info-bg: #dbeafe;

  /* Theme variables (light default) */
  --bg-body: var(--slate-100);
  --bg-card: #ffffff;
  --bg-sidebar: var(--slate-900);
  --bg-header: #ffffff;
  --bg-input: #ffffff;
  --bg-hover: var(--slate-50);
  --bg-active: var(--primary-50);

  --text-primary: var(--slate-900);
  --text-secondary: var(--slate-600);
  --text-muted: var(--slate-400);
  --text-inverse: #ffffff;

  --border-color: var(--slate-200);
  --border-hover: var(--slate-300);

  --shadow-sm: 0 1px 2px 0 rgba(0,0,0,0.05);
  --shadow-md: 0 4px 6px -1px rgba(0,0,0,0.1), 0 2px 4px -2px rgba(0,0,0,0.1);
  --shadow-lg: 0 10px 15px -3px rgba(0,0,0,0.1), 0 4px 6px -4px rgba(0,0,0,0.1);
  --shadow-xl: 0 20px 25px -5px rgba(0,0,0,0.1), 0 8px 10px -6px rgba(0,0,0,0.1);

  --radius-sm: 6px;
  --radius-md: 10px;
  --radius-lg: 14px;
  --radius-xl: 20px;

  --sidebar-width: 260px;
  --header-height: 64px;
}

/* ========== DARK MODE ========== */
[data-theme="dark"] {
  --bg-body: var(--slate-900);
  --bg-card: var(--slate-800);
  --bg-sidebar: #0a0f1a;
  --bg-header: var(--slate-800);
  --bg-input: var(--slate-700);
  --bg-hover: var(--slate-700);
  --bg-active: rgba(59, 130, 246, 0.1);

  --text-primary: #f1f5f9;
  --text-secondary: #94a3b8;
  --text-muted: #64748b;
  --text-inverse: #0f172a;

  --border-color: var(--slate-700);
  --border-hover: var(--slate-600);

  --shadow-sm: 0 1px 2px 0 rgba(0,0,0,0.3);
  --shadow-md: 0 4px 6px -1px rgba(0,0,0,0.4), 0 2px 4px -2px rgba(0,0,0,0.3);
  --shadow-lg: 0 10px 15px -3px rgba(0,0,0,0.5), 0 4px 6px -4px rgba(0,0,0,0.4);
  --shadow-xl: 0 20px 25px -5px rgba(0,0,0,0.5), 0 8px 10px -6px rgba(0,0,0,0.4);
}

/* ========== BASE STYLES ========== */
* { box-sizing: border-box; margin: 0; padding: 0; }

html { scroll-behavior: smooth; }

body {
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
  background: var(--bg-body);
  color: var(--text-primary);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  transition: background-color 0.3s ease, color 0.3s ease;
}

a { color: var(--primary-600); text-decoration: none; transition: color 0.15s; }
a:hover { color: var(--primary-700); }

[data-theme="dark"] a { color: var(--primary-400); }
[data-theme="dark"] a:hover { color: var(--primary-300); }

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

.main-content {
  flex: 1;
  margin-left: var(--sidebar-width);
  transition: margin-left 0.3s ease;
}

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

.content-wrapper {
  padding: 24px 32px;
  max-width: 1400px;
}

@media (max-width: 1024px) {
  .main-content { margin-left: 0; }
  .content-wrapper { padding: 16px; }
}

/* ========== SIDEBAR ========== */
.sidebar {
  position: fixed;
  left: 0;
  top: 0;
  bottom: 0;
  width: var(--sidebar-width);
  background: var(--bg-sidebar);
  color: #fff;
  display: flex;
  flex-direction: column;
  z-index: 100;
  transition: transform 0.3s ease;
}

.sidebar-brand {
  padding: 20px 24px;
  border-bottom: 1px solid rgba(255,255,255,0.08);
  display: flex;
  align-items: center;
  gap: 12px;
}

.sidebar-brand-icon {
  width: 36px;
  height: 36px;
  background: linear-gradient(135deg, var(--primary-500), var(--primary-700));
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 800;
  font-size: 16px;
  color: #fff;
}

.sidebar-brand-text {
  font-size: 18px;
  font-weight: 700;
  letter-spacing: -0.5px;
  color: #fff;
}

.sidebar-nav {
  flex: 1;
  padding: 16px 12px;
  overflow-y: auto;
}

.sidebar-nav::-webkit-scrollbar { width: 4px; }
.sidebar-nav::-webkit-scrollbar-track { background: transparent; }
.sidebar-nav::-webkit-scrollbar-thumb { background: rgba(255,255,255,0.1); border-radius: 2px; }

.nav-section {
  margin-bottom: 8px;
}

.nav-section-title {
  font-size: 10px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 1.5px;
  color: rgba(255,255,255,0.35);
  padding: 12px 12px 8px;
}

.nav-link {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 10px 12px;
  border-radius: var(--radius-md);
  color: rgba(255,255,255,0.6);
  font-size: 14px;
  font-weight: 500;
  transition: all 0.15s;
  margin-bottom: 2px;
}

.nav-link:hover {
  background: rgba(255,255,255,0.06);
  color: rgba(255,255,255,0.9);
}

.nav-link.active {
  background: rgba(59, 130, 246, 0.15);
  color: #60a5fa;
}

.nav-link i {
  width: 20px;
  text-align: center;
  font-size: 15px;
}

.nav-badge {
  margin-left: auto;
  background: var(--danger);
  color: #fff;
  font-size: 11px;
  font-weight: 700;
  padding: 2px 8px;
  border-radius: 20px;
  min-width: 22px;
  text-align: center;
}

.sidebar-footer {
  padding: 16px;
  border-top: 1px solid rgba(255,255,255,0.08);
}

.sidebar-user {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 8px;
  border-radius: var(--radius-md);
  transition: background 0.15s;
}

.sidebar-user:hover {
  background: rgba(255,255,255,0.06);
}

.sidebar-user-avatar {
  width: 36px;
  height: 36px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--primary-500), var(--primary-700));
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 700;
  font-size: 14px;
  color: #fff;
  flex-shrink: 0;
}

.sidebar-user-info {
  flex: 1;
  min-width: 0;
}

.sidebar-user-name {
  font-size: 13px;
  font-weight: 600;
  color: rgba(255,255,255,0.9);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.sidebar-user-role {
  font-size: 11px;
  color: rgba(255,255,255,0.4);
}

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

@media (max-width: 1024px) {
  .sidebar {
    transform: translateX(-100%);
  }
  .sidebar.open {
    transform: translateX(0);
  }
  .sidebar-overlay.show {
    display: block;
  }
}

/* ========== TOP HEADER ========== */
.top-header {
  height: var(--header-height);
  background: var(--bg-header);
  border-bottom: 1px solid var(--border-color);
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 32px;
  position: sticky;
  top: 0;
  z-index: 50;
  transition: background 0.3s, border-color 0.3s;
}

.header-left {
  display: flex;
  align-items: center;
  gap: 16px;
}

.header-title {
  font-size: 20px;
  font-weight: 700;
  letter-spacing: -0.5px;
}

.header-right {
  display: flex;
  align-items: center;
  gap: 12px;
}

/* ========== CARDS ========== */
.card {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  transition: background 0.3s, border-color 0.3s;
}

.card-header {
  padding: 20px 24px;
  border-bottom: 1px solid var(--border-color);
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.card-title {
  font-size: 16px;
  font-weight: 700;
}

.card-body {
  padding: 24px;
}

.card-footer {
  padding: 16px 24px;
  border-top: 1px solid var(--border-color);
  background: var(--bg-hover);
  border-radius: 0 0 var(--radius-lg) var(--radius-lg);
}

[data-theme="dark"] .card-footer {
  background: rgba(255,255,255,0.02);
}

/* ========== STAT CARDS ========== */
.stat-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(240px, 1fr));
  gap: 20px;
  margin-bottom: 24px;
}

.stat-card {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  padding: 24px;
  transition: all 0.2s;
}

.stat-card:hover {
  border-color: var(--border-hover);
  box-shadow: var(--shadow-md);
}

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

.stat-label {
  font-size: 13px;
  font-weight: 600;
  color: var(--text-secondary);
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.stat-icon {
  width: 40px;
  height: 40px;
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 18px;
}

.stat-icon.primary { background: var(--primary-100); color: var(--primary-600); }
.stat-icon.success { background: var(--success-bg); color: var(--success); }
.stat-icon.warning { background: var(--warning-bg); color: var(--warning); }
.stat-icon.danger { background: var(--danger-bg); color: var(--danger); }
.stat-icon.info { background: var(--info-bg); color: var(--info); }

[data-theme="dark"] .stat-icon.primary { background: rgba(59,130,246,0.15); }
[data-theme="dark"] .stat-icon.success { background: rgba(16,185,129,0.15); }
[data-theme="dark"] .stat-icon.warning { background: rgba(245,158,11,0.15); }
[data-theme="dark"] .stat-icon.danger { background: rgba(239,68,68,0.15); }
[data-theme="dark"] .stat-icon.info { background: rgba(59,130,246,0.15); }

.stat-value {
  font-size: 28px;
  font-weight: 800;
  letter-spacing: -1px;
  margin-bottom: 4px;
}

.stat-change {
  font-size: 13px;
  font-weight: 600;
}

.stat-change.up { color: var(--success); }
.stat-change.down { color: var(--danger); }

/* ========== BUTTONS ========== */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 10px 20px;
  border-radius: var(--radius-md);
  font-size: 14px;
  font-weight: 600;
  border: 1px solid transparent;
  cursor: pointer;
  transition: all 0.15s;
  white-space: nowrap;
}

.btn:hover { transform: translateY(-1px); }
.btn:active { transform: translateY(0); }
.btn:disabled { opacity: 0.5; cursor: not-allowed; transform: none; }

.btn-primary {
  background: linear-gradient(135deg, var(--primary-600), var(--primary-700));
  color: #fff;
  border-color: var(--primary-600);
  box-shadow: 0 4px 14px rgba(37, 99, 235, 0.25);
}

.btn-primary:hover {
  background: linear-gradient(135deg, var(--primary-700), var(--primary-800));
  box-shadow: 0 6px 20px rgba(37, 99, 235, 0.35);
}

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

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

.btn-success {
  background: linear-gradient(135deg, #059669, #047857);
  color: #fff;
  border-color: #059669;
  box-shadow: 0 4px 14px rgba(5, 150, 105, 0.25);
}

.btn-success:hover {
  background: linear-gradient(135deg, #047857, #065f46);
}

.btn-danger {
  background: linear-gradient(135deg, #dc2626, #b91c1c);
  color: #fff;
  border-color: #dc2626;
  box-shadow: 0 4px 14px rgba(220, 38, 38, 0.25);
}

.btn-danger:hover {
  background: linear-gradient(135deg, #b91c1c, #991b1b);
}

.btn-sm { padding: 6px 14px; font-size: 13px; }
.btn-lg { padding: 14px 28px; font-size: 15px; }

.btn-icon {
  width: 36px;
  height: 36px;
  padding: 0;
  border-radius: var(--radius-md);
}

/* ========== FORMS ========== */
.form-group {
  margin-bottom: 20px;
}

.form-label {
  display: block;
  font-size: 13px;
  font-weight: 600;
  color: var(--text-secondary);
  margin-bottom: 6px;
  text-transform: uppercase;
  letter-spacing: 0.3px;
}

.form-input,
.form-select,
.form-textarea {
  width: 100%;
  padding: 11px 16px;
  background: var(--bg-input);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  color: var(--text-primary);
  font-size: 14px;
  transition: all 0.15s;
  font-family: inherit;
}

.form-input:focus,
.form-select:focus,
.form-textarea:focus {
  outline: none;
  border-color: var(--primary-500);
  box-shadow: 0 0 0 3px rgba(59, 130, 246, 0.1);
}

.form-textarea {
  resize: vertical;
  min-height: 100px;
}

.form-select {
  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='%2364748b'%3E%3Cpath stroke-linecap='round' stroke-linejoin='round' stroke-width='2' d='M19 9l-7 7-7-7'%3E%3C/path%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 12px center;
  background-size: 16px;
  padding-right: 40px;
}

.form-hint {
  font-size: 12px;
  color: var(--text-muted);
  margin-top: 4px;
}

.form-error {
  font-size: 12px;
  color: var(--danger);
  margin-top: 4px;
}

/* ========== TABLES ========== */
.table-container {
  overflow-x: auto;
}

.data-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 14px;
}

.data-table thead th {
  padding: 14px 20px;
  text-align: left;
  font-size: 11px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.8px;
  color: var(--text-muted);
  border-bottom: 2px solid var(--border-color);
  white-space: nowrap;
}

.data-table tbody td {
  padding: 14px 20px;
  border-bottom: 1px solid var(--border-color);
  color: var(--text-secondary);
  vertical-align: middle;
}

.data-table tbody tr {
  transition: background 0.1s;
}

.data-table tbody tr:hover {
  background: var(--bg-hover);
}

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

/* ========== BADGES ========== */
.badge {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 4px 12px;
  border-radius: 20px;
  font-size: 12px;
  font-weight: 700;
  white-space: nowrap;
}

.badge-primary { background: var(--primary-100); color: var(--primary-700); }
.badge-success { background: var(--success-bg); color: #065f46; }
.badge-warning { background: var(--warning-bg); color: #92400e; }
.badge-danger { background: var(--danger-bg); color: #991b1b; }
.badge-info { background: var(--info-bg); color: #1e40af; }
.badge-secondary { background: var(--slate-200); color: var(--slate-700); }

[data-theme="dark"] .badge-primary { background: rgba(59,130,246,0.15); color: #93c5fd; }
[data-theme="dark"] .badge-success { background: rgba(16,185,129,0.15); color: #6ee7b7; }
[data-theme="dark"] .badge-warning { background: rgba(245,158,11,0.15); color: #fcd34d; }
[data-theme="dark"] .badge-danger { background: rgba(239,68,68,0.15); color: #fca5a5; }
[data-theme="dark"] .badge-info { background: rgba(59,130,246,0.15); color: #93c5fd; }
[data-theme="dark"] .badge-secondary { background: rgba(148,163,184,0.15); color: #cbd5e1; }

/* ========== ALERTS ========== */
.alert {
  padding: 14px 20px;
  border-radius: var(--radius-md);
  font-size: 14px;
  font-weight: 500;
  margin-bottom: 20px;
  display: flex;
  align-items: center;
  gap: 12px;
}

.alert-primary { background: var(--primary-100); color: var(--primary-800); border: 1px solid var(--primary-200); }
.alert-success { background: var(--success-bg); color: #065f46; border: 1px solid #a7f3d0; }
.alert-warning { background: var(--warning-bg); color: #92400e; border: 1px solid #fde68a; }
.alert-danger { background: var(--danger-bg); color: #991b1b; border: 1px solid #fecaca; }

[data-theme="dark"] .alert-primary { background: rgba(59,130,246,0.1); border-color: rgba(59,130,246,0.2); }
[data-theme="dark"] .alert-success { background: rgba(16,185,129,0.1); border-color: rgba(16,185,129,0.2); }
[data-theme="dark"] .alert-warning { background: rgba(245,158,11,0.1); border-color: rgba(245,158,11,0.2); }
[data-theme="dark"] .alert-danger { background: rgba(239,68,68,0.1); border-color: rgba(239,68,68,0.2); }

/* ========== TABS ========== */
.tabs {
  display: flex;
  gap: 4px;
  border-bottom: 2px solid var(--border-color);
  margin-bottom: 24px;
}

.tab {
  padding: 12px 20px;
  font-size: 14px;
  font-weight: 600;
  color: var(--text-muted);
  border-bottom: 2px solid transparent;
  margin-bottom: -2px;
  cursor: pointer;
  transition: all 0.15s;
  white-space: nowrap;
}

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

.tab.active {
  color: var(--primary-600);
  border-bottom-color: var(--primary-600);
}

/* ========== PAGINATION ========== */
.pagination {
  display: flex;
  gap: 4px;
  align-items: center;
}

.page-link {
  padding: 8px 14px;
  border-radius: var(--radius-md);
  font-size: 14px;
  font-weight: 600;
  color: var(--text-secondary);
  border: 1px solid var(--border-color);
  background: var(--bg-card);
  cursor: pointer;
  transition: all 0.15s;
}

.page-link:hover {
  background: var(--bg-hover);
  border-color: var(--border-hover);
}

.page-link.active {
  background: var(--primary-600);
  color: #fff;
  border-color: var(--primary-600);
}

/* ========== MODAL ========== */
.modal-overlay {
  position: fixed;
  inset: 0;
  background: rgba(0,0,0,0.5);
  backdrop-filter: blur(4px);
  z-index: 200;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 24px;
}

.modal {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-xl);
  width: 100%;
  max-width: 560px;
  max-height: 90vh;
  overflow-y: auto;
  box-shadow: var(--shadow-xl);
}

.modal-header {
  padding: 24px 28px;
  border-bottom: 1px solid var(--border-color);
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.modal-title {
  font-size: 18px;
  font-weight: 700;
}

.modal-body {
  padding: 28px;
}

.modal-footer {
  padding: 20px 28px;
  border-top: 1px solid var(--border-color);
  display: flex;
  justify-content: flex-end;
  gap: 12px;
}

/* ========== TOGGLE SWITCH ========== */
.toggle {
  position: relative;
  display: inline-block;
  width: 44px;
  height: 24px;
}

.toggle input {
  opacity: 0;
  width: 0;
  height: 0;
}

.toggle-slider {
  position: absolute;
  cursor: pointer;
  inset: 0;
  background: var(--slate-300);
  border-radius: 24px;
  transition: 0.2s;
}

.toggle-slider:before {
  content: "";
  position: absolute;
  height: 18px;
  width: 18px;
  left: 3px;
  bottom: 3px;
  background: white;
  border-radius: 50%;
  transition: 0.2s;
}

.toggle input:checked + .toggle-slider {
  background: var(--primary-500);
}

.toggle input:checked + .toggle-slider:before {
  transform: translateX(20px);
}

[data-theme="dark"] .toggle-slider {
  background: var(--slate-600);
}

/* ========== PROGRESS BAR ========== */
.progress {
  height: 8px;
  background: var(--slate-200);
  border-radius: 4px;
  overflow: hidden;
}

[data-theme="dark"] .progress {
  background: var(--slate-700);
}

.progress-bar {
  height: 100%;
  border-radius: 4px;
  background: linear-gradient(90deg, var(--primary-500), var(--primary-400));
  transition: width 0.5s ease;
}

/* ========== THEME TOGGLE ========== */
.theme-toggle {
  width: 40px;
  height: 40px;
  border-radius: var(--radius-md);
  border: 1px solid var(--border-color);
  background: var(--bg-card);
  color: var(--text-secondary);
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 16px;
  transition: all 0.15s;
}

.theme-toggle:hover {
  background: var(--bg-hover);
  border-color: var(--border-hover);
}

/* ========== LOGIN PAGE ========== */
.login-page {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 24px;
  background: linear-gradient(135deg, var(--slate-100) 0%, var(--slate-200) 100%);
}

[data-theme="dark"] .login-page {
  background: linear-gradient(135deg, var(--slate-900) 0%, #0a0f1a 100%);
}

.login-card {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-xl);
  padding: 48px;
  width: 100%;
  max-width: 440px;
  box-shadow: var(--shadow-xl);
}

.login-logo {
  text-align: center;
  margin-bottom: 32px;
}

.login-logo-icon {
  width: 56px;
  height: 56px;
  background: linear-gradient(135deg, var(--primary-600), var(--primary-800));
  border-radius: var(--radius-lg);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-size: 24px;
  font-weight: 800;
  color: #fff;
  margin-bottom: 16px;
}

.login-logo h1 {
  font-size: 24px;
  font-weight: 800;
  letter-spacing: -0.5px;
}

.login-logo p {
  font-size: 14px;
  color: var(--text-muted);
  margin-top: 4px;
}

/* ========== RESPONSIVE ========== */
@media (max-width: 768px) {
  .stat-grid {
    grid-template-columns: 1fr;
  }
  
  .login-card {
    padding: 32px 24px;
  }
  
  .card-header,
  .card-body,
  .card-footer {
    padding: 16px;
  }
  
  .modal {
    margin: 16px;
  }
  
  .modal-header,
  .modal-body,
  .modal-footer {
    padding: 20px;
  }
}

/* ========== UTILITIES ========== */
.text-primary { color: var(--text-primary); }
.text-secondary { color: var(--text-secondary); }
.text-muted { color: var(--text-muted); }
.text-success { color: var(--success); }
.text-warning { color: var(--warning); }
.text-danger { color: var(--danger); }
.text-info { color: var(--info); }

.font-mono { font-family: 'SF Mono', Monaco, 'Cascadia Code', monospace; }

.gap-2 { gap: 8px; }
.gap-3 { gap: 12px; }
.gap-4 { gap: 16px; }

.flex { display: flex; }
.flex-col { flex-direction: column; }
.items-center { align-items: center; }
.justify-between { justify-content: space-between; }
.justify-end { justify-content: flex-end; }
.flex-wrap { flex-wrap: wrap; }
.flex-1 { flex: 1; }

.w-full { width: 100%; }
.h-full { height: 100%; }

.mb-2 { margin-bottom: 8px; }
.mb-3 { margin-bottom: 12px; }
.mb-4 { margin-bottom: 16px; }
.mb-6 { margin-bottom: 24px; }
.mt-2 { margin-top: 8px; }
.mt-3 { margin-top: 12px; }
.mt-4 { margin-top: 16px; }

.p-4 { padding: 16px; }
.p-6 { padding: 24px; }

.grid { display: grid; }
.grid-cols-2 { grid-template-columns: repeat(2, 1fr); }
.grid-cols-3 { grid-template-columns: repeat(3, 1fr); }

@media (max-width: 768px) {
  .grid-cols-2,
  .grid-cols-3 {
    grid-template-columns: 1fr;
  }
}

.truncate {
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.hidden { display: none; }

/* ========== ANIMATIONS ========== */
@keyframes fadeIn {
  from { opacity: 0; transform: translateY(8px); }
  to { opacity: 1; transform: translateY(0); }
}

.animate-fade-in {
  animation: fadeIn 0.3s ease-out;
}

@keyframes spin {
  to { transform: rotate(360deg); }
}

.spinner {
  width: 20px;
  height: 20px;
  border: 2px solid var(--border-color);
  border-top-color: var(--primary-500);
  border-radius: 50%;
  animation: spin 0.6s linear infinite;
}

/* ========== SCROLLBAR ========== */
::-webkit-scrollbar { width: 8px; height: 8px; }
::-webkit-scrollbar-track { background: transparent; }
::-webkit-scrollbar-thumb { background: var(--slate-300); border-radius: 4px; }
::-webkit-scrollbar-thumb:hover { background: var(--slate-400); }

[data-theme="dark"] ::-webkit-scrollbar-thumb { background: var(--slate-600); }
[data-theme="dark"] ::-webkit-scrollbar-thumb:hover { background: var(--slate-500); }