/* =============================================================================
   Vigil — Design System (Tema Claro Corporativo)
   ============================================================================= */

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

/* ---------------------------------------------------------------------------
   Tokens de Design
   --------------------------------------------------------------------------- */
:root {
  /* Paleta Principal */
  --color-primary:        #1e40af;   /* azul corporativo */
  --color-primary-light:  #3b82f6;
  --color-primary-dark:   #1e3a8a;
  --color-primary-bg:     #eff6ff;

  /* Paleta de Status */
  --color-success:        #16a34a;
  --color-success-bg:     #dcfce7;
  --color-warning:        #d97706;
  --color-warning-bg:     #fef3c7;
  --color-danger:         #dc2626;
  --color-danger-bg:      #fee2e2;
  --color-info:           #0891b2;
  --color-info-bg:        #cffafe;

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

  /* Layout */
  --sidebar-width:        260px;
  --topbar-height:        64px;
  --content-max-width:    1200px;

  /* Tipografia */
  --font-family:          'Inter', system-ui, -apple-system, sans-serif;
  --font-size-xs:         0.75rem;
  --font-size-sm:         0.875rem;
  --font-size-base:       1rem;
  --font-size-lg:         1.125rem;
  --font-size-xl:         1.25rem;
  --font-size-2xl:        1.5rem;
  --font-size-3xl:        1.875rem;

  /* Espaçamentos */
  --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;

  /* Bordas e sombras */
  --radius-sm:   4px;
  --radius-md:   8px;
  --radius-lg:   12px;
  --radius-xl:   16px;
  --radius-full: 9999px;

  --shadow-sm:  0 1px 2px 0 rgba(0,0,0,.05);
  --shadow-md:  0 4px 6px -1px rgba(0,0,0,.1), 0 2px 4px -1px rgba(0,0,0,.06);
  --shadow-lg:  0 10px 15px -3px rgba(0,0,0,.1), 0 4px 6px -2px rgba(0,0,0,.05);

  /* Transições */
  --transition-fast:   150ms ease;
  --transition-normal: 250ms ease;
}

/* ---------------------------------------------------------------------------
   Reset e Base
   --------------------------------------------------------------------------- */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

html { font-size: 16px; -webkit-text-size-adjust: 100%; }

body {
  font-family: var(--font-family);
  font-size: var(--font-size-base);
  color: var(--color-gray-800);
  background-color: var(--color-gray-50);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

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

img, svg { display: block; max-width: 100%; }

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

/* Sidebar */
.sidebar {
  width: var(--sidebar-width);
  background: var(--color-white);
  border-right: 1px solid var(--color-gray-200);
  display: flex;
  flex-direction: column;
  position: fixed;
  top: 0;
  left: 0;
  height: 100vh;
  z-index: 40;
  transition: transform var(--transition-normal);
  overflow-y: auto;
  transform: translateX(-100%);
}

.sidebar.open {
  transform: translateX(0);
}

@media (min-width: 1024px) {
  .sidebar {
    transform: translateX(0);
  }
}

.sidebar-logo {
  padding: var(--space-6) var(--space-6) var(--space-4);
  border-bottom: 1px solid var(--color-gray-100);
  display: flex;
  align-items: center;
  gap: var(--space-3);
}

.sidebar-logo-mark {
  width: 36px;
  height: 36px;
  background: var(--color-primary);
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  color: white;
  font-weight: 700;
  font-size: var(--font-size-lg);
  flex-shrink: 0;
}

.sidebar-logo-text {
  font-size: var(--font-size-xl);
  font-weight: 700;
  color: var(--color-gray-900);
  letter-spacing: -0.02em;
}

.sidebar-logo-sub {
  font-size: var(--font-size-xs);
  color: var(--color-gray-400);
  font-weight: 400;
  margin-top: 1px;
}

.sidebar-nav {
  padding: var(--space-4) var(--space-3);
  flex: 1;
}

.sidebar-section-label {
  font-size: var(--font-size-xs);
  font-weight: 600;
  color: var(--color-gray-400);
  text-transform: uppercase;
  letter-spacing: 0.08em;
  padding: var(--space-3) var(--space-3) var(--space-2);
}

.sidebar-item {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  padding: var(--space-2) var(--space-3);
  border-radius: var(--radius-md);
  color: var(--color-gray-600);
  font-size: var(--font-size-sm);
  font-weight: 500;
  transition: all var(--transition-fast);
  cursor: pointer;
  text-decoration: none;
  margin-bottom: 2px;
}

.sidebar-item:hover {
  background: var(--color-gray-100);
  color: var(--color-gray-900);
}

.sidebar-item.active {
  background: var(--color-primary-bg);
  color: var(--color-primary);
}

.sidebar-item svg {
  width: 18px;
  height: 18px;
  flex-shrink: 0;
}

.sidebar-footer {
  padding: var(--space-4) var(--space-3);
  border-top: 1px solid var(--color-gray-100);
}

/* Topbar */
.topbar {
  height: var(--topbar-height);
  background: var(--color-white);
  border-bottom: 1px solid var(--color-gray-200);
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 var(--space-4);
  position: sticky;
  top: 0;
  z-index: 30;
}

@media (min-width: 1024px) {
  .topbar {
    padding: 0 var(--space-6);
  }
}

.topbar-title {
  font-size: var(--font-size-lg);
  font-weight: 600;
  color: var(--color-gray-900);
}

.topbar-actions {
  display: flex;
  align-items: center;
  gap: var(--space-3);
}

.user-avatar {
  width: 36px;
  height: 36px;
  border-radius: var(--radius-full);
  background: var(--color-primary-bg);
  color: var(--color-primary);
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 600;
  font-size: var(--font-size-sm);
  cursor: pointer;
}

/* Main Content */
.main-content {
  margin-left: 0;
  flex: 1;
  display: flex;
  flex-direction: column;
  min-height: 100vh;
}

@media (min-width: 1024px) {
  .main-content {
    margin-left: var(--sidebar-width);
  }
}

.page-content {
  padding: var(--space-4);
  flex: 1;
}

@media (min-width: 1024px) {
  .page-content {
    padding: var(--space-8);
  }
}

/* ---------------------------------------------------------------------------
   Componentes: Cards
   --------------------------------------------------------------------------- */
.card {
  background: var(--color-white);
  border: 1px solid var(--color-gray-200);
  border-radius: var(--radius-lg);
  padding: var(--space-6);
  box-shadow: var(--shadow-sm);
}

.card-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: var(--space-4);
}

.card-title {
  font-size: var(--font-size-base);
  font-weight: 600;
  color: var(--color-gray-900);
}

.card-subtitle {
  font-size: var(--font-size-sm);
  color: var(--color-gray-500);
  margin-top: 2px;
}

/* KPI Cards */
.kpi-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: var(--space-5);
  margin-bottom: var(--space-8);
}

.kpi-card {
  background: var(--color-white);
  border: 1px solid var(--color-gray-200);
  border-radius: var(--radius-lg);
  padding: var(--space-5) var(--space-6);
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
  box-shadow: var(--shadow-sm);
  transition: box-shadow var(--transition-fast);
}

.kpi-card:hover { box-shadow: var(--shadow-md); }

.kpi-card-label {
  font-size: var(--font-size-xs);
  font-weight: 600;
  color: var(--color-gray-500);
  text-transform: uppercase;
  letter-spacing: 0.06em;
}

.kpi-card-value {
  font-size: var(--font-size-3xl);
  font-weight: 700;
  color: var(--color-gray-900);
  line-height: 1;
}

.kpi-card-value.danger { color: var(--color-danger); }
.kpi-card-value.warning { color: var(--color-warning); }
.kpi-card-value.success { color: var(--color-success); }

.kpi-card-icon {
  width: 40px;
  height: 40px;
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: var(--space-1);
}

.kpi-card-icon.primary { background: var(--color-primary-bg); color: var(--color-primary); }
.kpi-card-icon.danger  { background: var(--color-danger-bg);  color: var(--color-danger);  }
.kpi-card-icon.warning { background: var(--color-warning-bg); color: var(--color-warning); }
.kpi-card-icon.success { background: var(--color-success-bg); color: var(--color-success); }

/* ---------------------------------------------------------------------------
   Componentes: Tabelas
   --------------------------------------------------------------------------- */
.table-wrapper {
  overflow-x: auto;
  border-radius: var(--radius-lg);
  border: 1px solid var(--color-gray-200);
  background: var(--color-white);
}

.table {
  width: 100%;
  border-collapse: collapse;
  font-size: var(--font-size-sm);
}

.table th {
  background: var(--color-gray-50);
  padding: var(--space-3) var(--space-4);
  text-align: left;
  font-size: var(--font-size-xs);
  font-weight: 600;
  color: var(--color-gray-500);
  text-transform: uppercase;
  letter-spacing: 0.06em;
  border-bottom: 1px solid var(--color-gray-200);
  white-space: nowrap;
}

.table td {
  padding: var(--space-4);
  border-bottom: 1px solid var(--color-gray-100);
  color: var(--color-gray-700);
  vertical-align: middle;
}

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

.table tbody tr {
  transition: background var(--transition-fast);
  cursor: pointer;
}

.table tbody tr:hover { background: var(--color-gray-50); }

/* ---------------------------------------------------------------------------
   Componentes: Badges
   --------------------------------------------------------------------------- */
.badge {
  display: inline-flex;
  align-items: center;
  gap: var(--space-1);
  padding: 2px var(--space-2);
  border-radius: var(--radius-full);
  font-size: var(--font-size-xs);
  font-weight: 600;
  white-space: nowrap;
}

/* Status */
.badge-new          { background: var(--color-info-bg);    color: var(--color-info);    }
.badge-triage       { background: var(--color-warning-bg); color: var(--color-warning); }
.badge-investigation{ background: var(--color-primary-bg); color: var(--color-primary); }
.badge-awaiting     { background: #faf5ff;                 color: #7c3aed;              }
.badge-closed       { background: var(--color-success-bg); color: var(--color-success); }
.badge-archived     { background: var(--color-gray-100);   color: var(--color-gray-500);}

/* Prioridade */
.badge-critical { background: #fee2e2; color: #991b1b; }
.badge-high     { background: #fef3c7; color: #92400e; }
.badge-medium   { background: #eff6ff; color: #1e40af; }
.badge-low      { background: var(--color-gray-100); color: var(--color-gray-600); }

/* ---------------------------------------------------------------------------
   Componentes: Botões
   --------------------------------------------------------------------------- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-2);
  padding: var(--space-2) var(--space-4);
  border-radius: var(--radius-md);
  font-size: var(--font-size-sm);
  font-weight: 600;
  font-family: var(--font-family);
  cursor: pointer;
  border: 1px solid transparent;
  transition: all var(--transition-fast);
  text-decoration: none;
  white-space: nowrap;
}

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

.btn-secondary {
  background: white;
  color: var(--color-gray-700);
  border-color: var(--color-gray-300);
}
.btn-secondary:hover {
  background: var(--color-gray-50);
  border-color: var(--color-gray-400);
  color: var(--color-gray-900);
}

.btn-danger {
  background: var(--color-danger);
  color: white;
  border-color: var(--color-danger);
}
.btn-danger:hover { opacity: 0.9; }

.btn-sm {
  padding: var(--space-1) var(--space-3);
  font-size: var(--font-size-xs);
}

.btn-icon {
  padding: var(--space-2);
  border-radius: var(--radius-md);
}

.btn:disabled {
  opacity: 0.5;
  cursor: not-allowed;
}

/* ---------------------------------------------------------------------------
   Componentes: Formulários
   --------------------------------------------------------------------------- */
.form-group {
  display: flex;
  flex-direction: column;
  gap: var(--space-1);
}

.form-label {
  font-size: var(--font-size-sm);
  font-weight: 500;
  color: var(--color-gray-700);
}

.form-label .required { color: var(--color-danger); margin-left: 2px; }

.form-control {
  width: 100%;
  padding: var(--space-2) var(--space-3);
  border: 1px solid var(--color-gray-300);
  border-radius: var(--radius-md);
  font-size: var(--font-size-sm);
  font-family: var(--font-family);
  color: var(--color-gray-900);
  background: white;
  transition: border-color var(--transition-fast), box-shadow var(--transition-fast);
  outline: none;
}

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

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

select.form-control { cursor: pointer; }

.form-hint {
  font-size: var(--font-size-xs);
  color: var(--color-gray-500);
}

.form-error {
  font-size: var(--font-size-xs);
  color: var(--color-danger);
}

/* ---------------------------------------------------------------------------
   Componentes: Filtros
   --------------------------------------------------------------------------- */
.filters-bar {
  display: flex;
  flex-direction: column;
  align-items: stretch;
  gap: var(--space-3);
  padding: var(--space-4) 0 var(--space-5);
}

@media (min-width: 768px) {
  .filters-bar {
    flex-direction: row;
    align-items: center;
    flex-wrap: wrap;
  }
}

/* ---------------------------------------------------------------------------
   Componentes: Player de Áudio
   --------------------------------------------------------------------------- */
.audio-player {
  background: var(--color-gray-50);
  border: 1px solid var(--color-gray-200);
  border-radius: var(--radius-lg);
  padding: var(--space-5);
}

.audio-player audio {
  width: 100%;
  height: 40px;
}

.audio-meta {
  display: flex;
  gap: var(--space-4);
  margin-top: var(--space-3);
  font-size: var(--font-size-xs);
  color: var(--color-gray-500);
}

.audio-meta-item {
  display: flex;
  align-items: center;
  gap: var(--space-1);
}

/* ---------------------------------------------------------------------------
   Componentes: Timeline
   --------------------------------------------------------------------------- */
.timeline {
  display: flex;
  flex-direction: column;
  gap: 0;
}

.timeline-item {
  display: flex;
  gap: var(--space-4);
  padding-bottom: var(--space-5);
  position: relative;
}

.timeline-item::before {
  content: '';
  position: absolute;
  left: 15px;
  top: 32px;
  bottom: 0;
  width: 2px;
  background: var(--color-gray-200);
}

.timeline-item:last-child::before { display: none; }

.timeline-dot {
  width: 32px;
  height: 32px;
  border-radius: var(--radius-full);
  background: var(--color-primary-bg);
  border: 2px solid var(--color-primary);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  z-index: 1;
}

.timeline-dot svg { width: 14px; height: 14px; color: var(--color-primary); }

.timeline-content {
  flex: 1;
  padding-top: 4px;
}

.timeline-title {
  font-size: var(--font-size-sm);
  font-weight: 600;
  color: var(--color-gray-900);
}

.timeline-time {
  font-size: var(--font-size-xs);
  color: var(--color-gray-400);
  margin-top: 2px;
}

/* ---------------------------------------------------------------------------
   Componentes: Mensagens / Chat
   --------------------------------------------------------------------------- */
.message-thread {
  display: flex;
  flex-direction: column;
  gap: var(--space-3);
  max-height: 400px;
  overflow-y: auto;
  padding: var(--space-4);
  background: var(--color-gray-50);
  border-radius: var(--radius-lg);
  border: 1px solid var(--color-gray-200);
}

.message-bubble {
  background: white;
  border: 1px solid var(--color-gray-200);
  border-radius: var(--radius-lg);
  padding: var(--space-3) var(--space-4);
  max-width: 80%;
}

.message-bubble.internal {
  background: #fefce8;
  border-color: #fef08a;
  align-self: flex-end;
}

.message-meta {
  font-size: var(--font-size-xs);
  color: var(--color-gray-400);
  margin-top: var(--space-1);
}

/* ---------------------------------------------------------------------------
   Componentes: Alertas / Toast
   --------------------------------------------------------------------------- */
.toast-container {
  position: fixed;
  bottom: var(--space-6);
  right: var(--space-6);
  display: flex;
  flex-direction: column;
  gap: var(--space-3);
  z-index: 9999;
}

.toast {
  background: white;
  border: 1px solid var(--color-gray-200);
  border-radius: var(--radius-lg);
  padding: var(--space-4) var(--space-5);
  box-shadow: var(--shadow-lg);
  display: flex;
  align-items: flex-start;
  gap: var(--space-3);
  min-width: 300px;
  max-width: 420px;
  animation: slideIn var(--transition-normal) ease;
}

.toast.success { border-left: 4px solid var(--color-success); }
.toast.error   { border-left: 4px solid var(--color-danger);  }
.toast.warning { border-left: 4px solid var(--color-warning); }
.toast.info    { border-left: 4px solid var(--color-primary); }

@keyframes slideIn {
  from { transform: translateX(100%); opacity: 0; }
  to   { transform: translateX(0);    opacity: 1; }
}

/* ---------------------------------------------------------------------------
   Componentes: Modal
   --------------------------------------------------------------------------- */
.modal-overlay {
  position: fixed;
  inset: 0;
  background: rgba(0,0,0,0.4);
  z-index: 100;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: var(--space-4);
  backdrop-filter: blur(2px);
}

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

.modal-header {
  padding: var(--space-5) var(--space-6);
  border-bottom: 1px solid var(--color-gray-200);
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.modal-title {
  font-size: var(--font-size-lg);
  font-weight: 600;
  color: var(--color-gray-900);
}

.modal-body {
  padding: var(--space-6);
  display: flex;
  flex-direction: column;
  gap: var(--space-4);
}

.modal-footer {
  padding: var(--space-4) var(--space-6);
  border-top: 1px solid var(--color-gray-100);
  display: flex;
  justify-content: flex-end;
  gap: var(--space-3);
}

/* ---------------------------------------------------------------------------
   Componentes: Paginação
   --------------------------------------------------------------------------- */
.pagination {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: var(--space-4) var(--space-5);
  border-top: 1px solid var(--color-gray-200);
  font-size: var(--font-size-sm);
  color: var(--color-gray-600);
}

.pagination-controls {
  display: flex;
  gap: var(--space-1);
}

.pagination-btn {
  padding: var(--space-1) var(--space-3);
  border-radius: var(--radius-md);
  border: 1px solid var(--color-gray-300);
  background: white;
  cursor: pointer;
  font-size: var(--font-size-sm);
  transition: all var(--transition-fast);
}

.pagination-btn:hover { background: var(--color-gray-50); }
.pagination-btn.active {
  background: var(--color-primary);
  color: white;
  border-color: var(--color-primary);
}

/* ---------------------------------------------------------------------------
   Página de Login
   --------------------------------------------------------------------------- */
.login-page {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  background: linear-gradient(135deg, #f0f4ff 0%, #e8eeff 50%, #f0f9ff 100%);
}

.login-card {
  background: white;
  border-radius: var(--radius-xl);
  box-shadow: var(--shadow-lg);
  padding: var(--space-10) var(--space-10);
  width: 100%;
  max-width: 440px;
}

.login-logo {
  text-align: center;
  margin-bottom: var(--space-8);
}

.login-logo-mark {
  width: 56px;
  height: 56px;
  background: var(--color-primary);
  border-radius: var(--radius-xl);
  display: flex;
  align-items: center;
  justify-content: center;
  color: white;
  font-size: var(--font-size-2xl);
  font-weight: 700;
  margin: 0 auto var(--space-4);
}

.login-title {
  font-size: var(--font-size-2xl);
  font-weight: 700;
  color: var(--color-gray-900);
  text-align: center;
  margin-bottom: var(--space-1);
}

.login-subtitle {
  font-size: var(--font-size-sm);
  color: var(--color-gray-500);
  text-align: center;
}

.login-form {
  display: flex;
  flex-direction: column;
  gap: var(--space-5);
}

.login-footer {
  text-align: center;
  font-size: var(--font-size-xs);
  color: var(--color-gray-400);
  margin-top: var(--space-6);
}

/* ---------------------------------------------------------------------------
   Utilitários
   --------------------------------------------------------------------------- */
.text-sm    { font-size: var(--font-size-sm); }
.text-xs    { font-size: var(--font-size-xs); }
.text-muted { color: var(--color-gray-500); }
.text-bold  { font-weight: 600; }

.flex        { display: flex; }
.flex-col    { flex-direction: column; }
.items-center{ align-items: center; }
.justify-between { justify-content: space-between; }
.gap-2       { gap: var(--space-2); }
.gap-3       { gap: var(--space-3); }
.gap-4       { gap: var(--space-4); }

.w-full      { width: 100%; }

.mt-1 { margin-top: var(--space-1); }
.mt-2 { margin-top: var(--space-2); }
.mt-4 { margin-top: var(--space-4); }
.mt-6 { margin-top: var(--space-6); }
.mb-4 { margin-bottom: var(--space-4); }
.mb-8 { margin-bottom: var(--space-8); }

/* ---------------------------------------------------------------------------
   Responsive Layout Utilities
   --------------------------------------------------------------------------- */
.grid-charts {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-5);
  margin-bottom: var(--space-8);
}

.grid-status {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-5);
  margin-bottom: var(--space-8);
}

.grid-report-detail {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-6);
}

/* Hide toggle button on desktop */
@media (min-width: 1024px) {
  #btn-toggle-sidebar {
    display: none;
  }
  
  .grid-charts {
    grid-template-columns: 2fr 1fr;
  }
  
  .grid-status {
    grid-template-columns: 1fr 1fr;
  }
  
  .grid-report-detail {
    grid-template-columns: 1fr 360px;
  }
  
  .sidebar-overlay {
    display: none !important;
  }
}
.mb-4 { margin-bottom: var(--space-4); }
.mb-6 { margin-bottom: var(--space-6); }

.htmx-indicator {
  opacity: 0;
  transition: opacity 300ms ease;
}

.htmx-request .htmx-indicator { opacity: 1; }
.htmx-request.htmx-indicator  { opacity: 1; }

/* Spinner */
.spinner {
  width: 20px;
  height: 20px;
  border: 2px solid var(--color-gray-200);
  border-top-color: var(--color-primary);
  border-radius: 50%;
  animation: spin 0.7s linear infinite;
}

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

/* Scrollbar personalizada */
::-webkit-scrollbar { width: 6px; height: 6px; }
::-webkit-scrollbar-track { background: transparent; }
::-webkit-scrollbar-thumb { background: var(--color-gray-300); border-radius: 3px; }
::-webkit-scrollbar-thumb:hover { background: var(--color-gray-400); }