/* ========================================================
   SISTEMA DE DISEÑO - SUBPROGRAMA RH HUAMANTLA
   Consistente con la identidad visual del Portal Tihuamantla
   ======================================================== */

:root {
  --primary: #0f172a;
  --primary-light: #1e293b;
  --secondary: #3b82f6;
  --secondary-hover: #2563eb;
  --accent: #60a5fa;
  --background: #f8fafc;
  --surface: #ffffff;
  --surface-hover: #f1f5f9;
  --border: #e2e8f0;
  --border-strong: #cbd5e1;
  --text: #334155;
  --text-dark: #0f172a;
  --text-light: #64748b;
  --text-muted: #94a3b8;
  
  --success: #10b981;
  --success-bg: #ecfdf5;
  --warning: #f59e0b;
  --warning-bg: #fffbeb;
  --danger: #ef4444;
  --danger-bg: #fef2f2;
  --info: #0284c7;
  --info-bg: #f0f9ff;
  
  --sidebar-width: 260px;
  --topbar-height: 68px;
  --radius-sm: 6px;
  --radius-md: 10px;
  --radius-lg: 16px;
  --radius-full: 9999px;
  
  --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
  --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.08), 0 2px 4px -1px rgba(0, 0, 0, 0.04);
  --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.08), 0 4px 6px -2px rgba(0, 0, 0, 0.04);
  --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.1), 0 10px 10px -5px rgba(0, 0, 0, 0.04);
  
  --font-main: 'Plus Jakarta Sans', system-ui, -apple-system, sans-serif;
  --font-title: 'Outfit', system-ui, -apple-system, sans-serif;
}

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

body {
  font-family: var(--font-main);
  background-color: var(--background);
  color: var(--text);
  line-height: 1.5;
  font-size: 0.9375rem;
  -webkit-font-smoothing: antialiased;
}

h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-title);
  color: var(--text-dark);
  font-weight: 700;
  line-height: 1.25;
}

a {
  color: var(--secondary);
  text-decoration: none;
  transition: color 0.15s ease;
}

a:hover {
  color: var(--secondary-hover);
}

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

/* Sidebar */
.app-sidebar {
  width: var(--sidebar-width);
  background: var(--primary);
  color: #f8fafc;
  display: flex;
  flex-direction: column;
  position: fixed;
  top: 0;
  bottom: 0;
  left: 0;
  z-index: 100;
  box-shadow: 4px 0 20px rgba(0, 0, 0, 0.15);
  transition: transform 0.3s ease;
}

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

.sidebar-logo {
  width: 40px;
  height: auto;
}

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

.sidebar-brand-title {
  font-family: var(--font-title);
  font-weight: 700;
  font-size: 1.1rem;
  color: #ffffff;
  letter-spacing: 0.5px;
}

.sidebar-brand-sub {
  font-size: 0.72rem;
  color: var(--accent);
  text-transform: uppercase;
  font-weight: 600;
  letter-spacing: 0.5px;
}

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

.nav-section-title {
  font-size: 0.7rem;
  text-transform: uppercase;
  color: var(--text-muted);
  font-weight: 700;
  letter-spacing: 0.08em;
  padding: 14px 12px 6px;
}

.nav-item {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 10px 14px;
  border-radius: var(--radius-md);
  color: #cbd5e1;
  font-size: 0.9rem;
  font-weight: 500;
  transition: all 0.2s ease;
  margin-bottom: 4px;
}

.nav-item i {
  font-size: 1.1rem;
  width: 20px;
  text-align: center;
  color: #94a3b8;
  transition: color 0.2s ease;
}

.nav-item:hover {
  background: rgba(255, 255, 255, 0.07);
  color: #ffffff;
}

.nav-item:hover i {
  color: var(--accent);
}

.nav-item.active {
  background: var(--secondary);
  color: #ffffff;
  font-weight: 600;
  box-shadow: 0 4px 12px rgba(59, 130, 246, 0.35);
}

.nav-item.active i {
  color: #ffffff;
}

.sidebar-footer {
  padding: 16px;
  border-top: 1px solid rgba(255, 255, 255, 0.08);
  background: rgba(0, 0, 0, 0.2);
}

.user-badge {
  display: flex;
  align-items: center;
  gap: 12px;
}

.user-avatar {
  width: 36px;
  height: 36px;
  border-radius: var(--radius-full);
  background: var(--secondary);
  color: #ffffff;
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 700;
  font-size: 0.9rem;
}

.user-info {
  display: flex;
  flex-direction: column;
  overflow: hidden;
  flex: 1;
}

.user-name {
  font-size: 0.85rem;
  font-weight: 600;
  color: #ffffff;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.user-role {
  font-size: 0.72rem;
  color: #94a3b8;
  text-transform: capitalize;
}

.user-logout {
  color: #94a3b8;
  padding: 6px;
  border-radius: var(--radius-sm);
  transition: all 0.2s ease;
}

.user-logout:hover {
  color: #ef4444;
  background: rgba(239, 68, 68, 0.1);
}

/* Área de Contenido */
.app-main {
  flex: 1;
  margin-left: var(--sidebar-width);
  display: flex;
  flex-direction: column;
  min-width: 0;
  min-height: 100vh;
}

/* Topbar */
.app-topbar {
  height: var(--topbar-height);
  background: var(--surface);
  border-bottom: 1px solid var(--border);
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 28px;
  position: sticky;
  top: 0;
  z-index: 90;
  backdrop-filter: blur(8px);
}

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

.topbar-title {
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--text-dark);
}

.topbar-right {
  display: flex;
  align-items: center;
  gap: 16px;
}

.exercise-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: #eff6ff;
  border: 1px solid #bfdbfe;
  color: #1e40af;
  font-size: 0.8rem;
  font-weight: 600;
  padding: 6px 14px;
  border-radius: var(--radius-full);
}

/* Contenedor de contenido */
.page-content {
  flex: 1;
  padding: 28px;
}

/* Botones */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 9px 18px;
  border-radius: var(--radius-md);
  font-size: 0.875rem;
  font-weight: 600;
  font-family: inherit;
  cursor: pointer;
  border: 1px solid transparent;
  transition: all 0.2s ease;
  text-decoration: none;
  white-space: nowrap;
}

.btn:active {
  transform: translateY(1px);
}

.btn-primary {
  background: var(--secondary);
  color: #ffffff;
  border-color: var(--secondary);
  box-shadow: 0 2px 4px rgba(59, 130, 246, 0.2);
}

.btn-primary:hover {
  background: var(--secondary-hover);
  border-color: var(--secondary-hover);
  color: #ffffff;
  box-shadow: 0 4px 8px rgba(59, 130, 246, 0.3);
}

.btn-outline {
  background: transparent;
  color: var(--text);
  border-color: var(--border-strong);
}

.btn-outline:hover {
  background: var(--surface-hover);
  color: var(--text-dark);
  border-color: var(--text-muted);
}

.btn-success {
  background: var(--success);
  color: #ffffff;
}

.btn-success:hover {
  background: #059669;
  color: #ffffff;
}

.btn-danger {
  background: var(--danger);
  color: #ffffff;
}

.btn-danger:hover {
  background: #dc2626;
  color: #ffffff;
}

.btn-sm {
  padding: 6px 12px;
  font-size: 0.8rem;
  border-radius: var(--radius-sm);
}

.btn-icon {
  width: 34px;
  height: 34px;
  padding: 0;
  border-radius: var(--radius-sm);
}

/* Tarjetas */
.card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-sm);
  margin-bottom: 24px;
  overflow: hidden;
}

.card-header {
  padding: 18px 24px;
  border-bottom: 1px solid var(--border);
  display: flex;
  align-items: center;
  justify-content: space-between;
  background: #ffffff;
}

.card-title {
  font-size: 1.1rem;
  font-weight: 700;
  color: var(--text-dark);
  display: flex;
  align-items: center;
  gap: 10px;
}

.card-body {
  padding: 24px;
}

.card-footer {
  padding: 16px 24px;
  background: #fafafa;
  border-top: 1px solid var(--border);
  display: flex;
  align-items: center;
  justify-content: space-between;
}

/* Badges de Estado */
.badge {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 4px 10px;
  border-radius: var(--radius-full);
  font-size: 0.75rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.badge-draft {
  background: #f1f5f9;
  color: #475569;
}

.badge-reviewed {
  background: #e0f2fe;
  color: #0369a1;
}

.badge-approved {
  background: #dcfce7;
  color: #15803d;
}

.badge-paid {
  background: #fef3c7;
  color: #b45309;
}

.badge-cat-b {
  background: #ede9fe;
  color: #6d28d9;
}

.badge-cat-j {
  background: #fef08a;
  color: #854d0e;
}

.badge-cat-p {
  background: #fed7aa;
  color: #9a3412;
}

/* Alertas */
.alert {
  padding: 14px 18px;
  border-radius: var(--radius-md);
  margin-bottom: 20px;
  display: flex;
  align-items: center;
  gap: 12px;
  font-size: 0.9rem;
}

.alert-success {
  background: var(--success-bg);
  color: #065f46;
  border: 1px solid #a7f3d0;
}

.alert-danger {
  background: var(--danger-bg);
  color: #991b1b;
  border: 1px solid #fecaca;
}

.alert-info {
  background: var(--info-bg);
  color: #075985;
  border: 1px solid #bae6fd;
}

.alert-warning {
  background: var(--warning-bg);
  color: #92400e;
  border: 1px solid #fde68a;
}

/* Utilidades */
.d-flex { display: flex; }
.align-center { align-items: center; }
.justify-between { justify-content: space-between; }
.gap-2 { gap: 8px; }
.gap-3 { gap: 12px; }
.gap-4 { gap: 16px; }
.mt-2 { margin-top: 8px; }
.mt-4 { margin-top: 16px; }
.mb-2 { margin-bottom: 8px; }
.mb-4 { margin-bottom: 16px; }
.text-right { text-align: right; }
.text-center { text-align: center; }
.text-muted { color: var(--text-muted); }
.fw-bold { font-weight: 700; }

/* Responsive */
@media (max-width: 992px) {
  .app-sidebar {
    transform: translateX(-100%);
  }
  .app-sidebar.show {
    transform: translateX(0);
  }
  .app-main {
    margin-left: 0;
  }
}