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

:root {
  --primary-color: #0f1f38;
  --primary-light: #1a2f4c;
  --accent-color: #0ea5a0;
  --accent-hover: #0c8c88;
  --accent-light: rgba(14, 165, 160, 0.1);
  --bg-color: #f4f7fb;
  --card-bg: #ffffff;
  --text-main: #1e293b;
  --text-muted: #64748b;
  --border-color: #e2e8f0;
  
  --success-color: #10b981;
  --success-bg: #ecfdf5;
  --danger-color: #ef4444;
  --danger-bg: #fef2f2;
  --warning-color: #f59e0b;
  --warning-bg: #fffbeb;
  
  --sidebar-width: 260px;
  --topbar-height: 70px;
  
  --font-title: 'Space Grotesk', sans-serif;
  --font-body: 'Inter', sans-serif;
  
  --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 -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);
  --transition-normal: all 0.25s cubic-bezier(0.4, 0, 0.2, 1);
  
  --border-radius-sm: 6px;
  --border-radius-md: 10px;
  --border-radius-lg: 16px;
}

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

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

h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-title);
  font-weight: 600;
  color: var(--primary-color);
}

/* ==========================================================================
   LAYOUT ESTRUCTURAL (SIDEBAR + CONTENT)
   ========================================================================== */

.app-container {
  display: flex;
  min-height: 100vh;
}

/* Sidebar Estilos */
.sidebar {
  width: var(--sidebar-width);
  background-color: var(--primary-color);
  color: #ffffff;
  display: flex;
  flex-direction: column;
  position: fixed;
  top: 0;
  bottom: 0;
  left: 0;
  z-index: 100;
  box-shadow: var(--shadow-lg);
  transition: var(--transition-normal);
}

.sidebar-brand {
  height: var(--topbar-height);
  display: flex;
  align-items: center;
  padding: 0 24px;
  border-bottom: 1px solid rgba(255, 255, 255, 0.08);
}

.sidebar-brand h2 {
  color: #ffffff;
  font-size: 1.5rem;
  display: flex;
  align-items: center;
  gap: 10px;
}

.sidebar-brand h2 span {
  color: var(--accent-color);
  font-weight: 700;
}

.sidebar-menu {
  list-style: none;
  padding: 24px 16px;
  display: flex;
  flex-direction: column;
  gap: 8px;
  flex-grow: 1;
}

.sidebar-item a {
  display: flex;
  align-items: center;
  gap: 14px;
  padding: 12px 16px;
  color: #cbd5e1;
  text-decoration: none;
  font-weight: 500;
  border-radius: var(--border-radius-md);
  transition: var(--transition-normal);
}

.sidebar-item a:hover {
  background-color: var(--primary-light);
  color: #ffffff;
}

.sidebar-item.active a {
  background-color: var(--accent-color);
  color: #ffffff;
  box-shadow: 0 4px 12px rgba(14, 165, 160, 0.3);
}

.sidebar-item i {
  font-size: 1.2rem;
  width: 20px;
  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(--border-radius-md);
  background-color: rgba(255, 255, 255, 0.04);
}

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

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

.user-role {
  font-size: 0.75rem;
  color: var(--accent-color);
  text-transform: capitalize;
}

/* Área de contenido */
.main-content {
  margin-left: var(--sidebar-width);
  flex-grow: 1;
  display: flex;
  flex-direction: column;
  min-width: 0;
}

/* Topbar Estilos */
.topbar {
  height: var(--topbar-height);
  background-color: var(--card-bg);
  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: 90;
}

.topbar-title h1 {
  font-size: 1.4rem;
  font-weight: 600;
}

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

.btn-logout {
  color: var(--text-muted);
  text-decoration: none;
  font-size: 0.9rem;
  font-weight: 500;
  display: flex;
  align-items: center;
  gap: 8px;
  transition: var(--transition-normal);
}

.btn-logout:hover {
  color: var(--danger-color);
}

/* Contenido Principal */
.content-wrapper {
  padding: 32px;
  flex-grow: 1;
  max-width: 1400px;
  width: 100%;
  margin: 0 auto;
}

/* ==========================================================================
   COMPONENTES PREMIUM (CARDS, BUTTONS, TABLES, ALERTS)
   ========================================================================== */

/* Tarjetas (Cards) */
.card {
  background-color: var(--card-bg);
  border-radius: var(--border-radius-lg);
  box-shadow: var(--shadow-sm);
  border: 1px solid var(--border-color);
  padding: 24px;
  margin-bottom: 24px;
  transition: var(--transition-normal);
}

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

.card-title {
  margin-bottom: 20px;
  border-bottom: 1px solid var(--border-color);
  padding-bottom: 12px;
  font-size: 1.15rem;
  display: flex;
  justify-content: space-between;
  align-items: center;
}

/* Botones */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 10px 20px;
  font-family: var(--font-body);
  font-size: 0.9rem;
  font-weight: 600;
  border-radius: var(--border-radius-md);
  border: none;
  cursor: pointer;
  transition: var(--transition-normal);
  text-decoration: none;
}

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

.btn-primary:hover {
  background-color: var(--accent-hover);
  box-shadow: 0 4px 12px rgba(14, 165, 160, 0.2);
}

.btn-secondary {
  background-color: #e2e8f0;
  color: var(--text-main);
}

.btn-secondary:hover {
  background-color: #cbd5e1;
}

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

.btn-danger:hover {
  background-color: #dc2626;
  box-shadow: 0 4px 12px rgba(239, 68, 68, 0.2);
}

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

.btn-warning:hover {
  background-color: #d97706;
}

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

/* Tablas */
.table-responsive {
  width: 100%;
  overflow-x: auto;
}

.table {
  width: 100%;
  border-collapse: collapse;
  text-align: left;
  font-size: 0.9rem;
}

.table th {
  background-color: #f8fafc;
  padding: 16px;
  font-weight: 600;
  color: var(--text-muted);
  border-bottom: 1px solid var(--border-color);
  text-transform: uppercase;
  font-size: 0.75rem;
  letter-spacing: 0.05em;
}

.table td {
  padding: 16px;
  border-bottom: 1px solid var(--border-color);
  vertical-align: middle;
  transition: var(--transition-normal);
}

.table tbody tr:hover td {
  background-color: #f8fafc;
}

/* Badges (Etiquetas de Estado) */
.badge {
  display: inline-flex;
  align-items: center;
  padding: 4px 10px;
  font-size: 0.75rem;
  font-weight: 600;
  border-radius: 9999px;
  text-transform: capitalize;
}

.badge-success {
  background-color: var(--success-bg);
  color: var(--success-color);
  border: 1px solid rgba(16, 185, 129, 0.2);
}

.badge-danger {
  background-color: var(--danger-bg);
  color: var(--danger-color);
  border: 1px solid rgba(239, 68, 68, 0.2);
}

.badge-warning {
  background-color: var(--warning-bg);
  color: var(--warning-color);
  border: 1px solid rgba(245, 158, 11, 0.2);
}

/* Alertas Flash */
.alert-container {
  margin-bottom: 24px;
}

.alert {
  padding: 16px;
  border-radius: var(--border-radius-md);
  margin-bottom: 12px;
  font-size: 0.9rem;
  font-weight: 500;
  display: flex;
  justify-content: space-between;
  align-items: center;
  box-shadow: var(--shadow-sm);
  animation: slideIn 0.3s ease;
}

@keyframes slideIn {
  from { transform: translateY(-10px); opacity: 0; }
  to { transform: translateY(0); opacity: 1; }
}

.alert-success {
  background-color: var(--success-bg);
  color: #065f46;
  border-left: 4px solid var(--success-color);
}

.alert-danger {
  background-color: var(--danger-bg);
  color: #991b1b;
  border-left: 4px solid var(--danger-color);
}

.alert-warning {
  background-color: var(--warning-bg);
  color: #92400e;
  border-left: 4px solid var(--warning-color);
}

.alert-info {
  background-color: #eff6ff;
  color: #1e40af;
  border-left: 4px solid #3b82f6;
}

.alert-close {
  background: none;
  border: none;
  color: inherit;
  cursor: pointer;
  font-size: 1.2rem;
  font-weight: 700;
  line-height: 1;
}

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

.form-label {
  display: block;
  font-weight: 500;
  margin-bottom: 8px;
  font-size: 0.9rem;
  color: var(--text-main);
}

.form-control {
  width: 100%;
  padding: 10px 14px;
  font-family: var(--font-body);
  font-size: 0.9rem;
  border-radius: var(--border-radius-md);
  border: 1px solid var(--border-color);
  background-color: #ffffff;
  color: var(--text-main);
  transition: var(--transition-normal);
}

.form-control:focus {
  outline: none;
  border-color: var(--accent-color);
  box-shadow: 0 0 0 3px rgba(14, 165, 160, 0.15);
}

.form-check {
  display: flex;
  align-items: center;
  gap: 8px;
}

.form-check-input {
  width: 16px;
  height: 16px;
  border-radius: 4px;
  border: 1px solid var(--border-color);
  cursor: pointer;
  accent-color: var(--accent-color);
}

/* ==========================================================================
   PANTALLA DE LOGIN
   ========================================================================== */

.login-container {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  background-color: var(--primary-color);
  padding: 24px;
}

.login-card {
  width: 100%;
  max-width: 440px;
  background-color: var(--card-bg);
  border-radius: var(--border-radius-lg);
  box-shadow: var(--shadow-lg);
  padding: 40px;
}

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

.login-header h2 {
  font-size: 1.8rem;
  margin-bottom: 8px;
}

.login-header h2 span {
  color: var(--accent-color);
}

.login-header p {
  color: var(--text-muted);
  font-size: 0.9rem;
}

/* ==========================================================================
   MÉTRICAS DEL DASHBOARD
   ========================================================================== */

.metrics-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 24px;
  margin-bottom: 32px;
}

.metric-card {
  background-color: var(--card-bg);
  border-radius: var(--border-radius-lg);
  border: 1px solid var(--border-color);
  padding: 24px;
  box-shadow: var(--shadow-sm);
  display: flex;
  align-items: center;
  gap: 20px;
  transition: var(--transition-normal);
}

.metric-card:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-md);
}

.metric-icon {
  width: 48px;
  height: 48px;
  border-radius: var(--border-radius-md);
  background-color: var(--accent-light);
  color: var(--accent-color);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.4rem;
}

.metric-info {
  display: flex;
  flex-direction: column;
}

.metric-value {
  font-size: 1.6rem;
  font-weight: 700;
  color: var(--primary-color);
  line-height: 1.2;
}

.metric-label {
  font-size: 0.85rem;
  color: var(--text-muted);
  font-weight: 500;
}

/* ==========================================================================
   FILTROS DE BÚSQUEDA
   ========================================================================== */

.filter-bar {
  display: flex;
  flex-wrap: wrap;
  gap: 16px;
  align-items: flex-end;
  margin-bottom: 24px;
}

.filter-item {
  display: flex;
  flex-direction: column;
  gap: 6px;
}

/* ==========================================================================
   PÁGINA PÚBLICA / NO DISPONIBLE
   ========================================================================== */

.public-container {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  background-color: var(--primary-color);
  padding: 24px;
  text-align: center;
  color: #ffffff;
}

.public-card {
  max-width: 500px;
  background-color: rgba(255, 255, 255, 0.03);
  backdrop-filter: blur(10px);
  border: 1px solid rgba(255, 255, 255, 0.08);
  border-radius: var(--border-radius-lg);
  padding: 48px 32px;
  box-shadow: var(--shadow-lg);
}

.public-icon {
  font-size: 3.5rem;
  color: var(--accent-color);
  margin-bottom: 24px;
}

.public-card h2 {
  color: #ffffff;
  font-size: 1.6rem;
  margin-bottom: 16px;
}

.public-card p {
  color: #94a3b8;
  font-size: 0.95rem;
  margin-bottom: 32px;
}

.public-footer {
  font-size: 0.8rem;
  color: #64748b;
  margin-top: 16px;
}