/*
 * admin.css - Estilos Premium para el Panel de Administración de Transportes J y C
 * Diseñado con variables CSS, transiciones suaves y estética moderna (White background + Corporate Red + Deep Green accents)
 */

@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700&family=Montserrat:wght@500;600;700;800&display=swap');

:root {
    --primary-color: #E30613; /* Rojo Corporativo */
    --primary-hover: #c40510;
    --secondary-color: #071F14; /* Verde Oscuro */
    --bg-light: #f8fafc;
    --bg-card: #ffffff;
    --text-main: #1e293b;
    --text-muted: #64748b;
    --border-color: #e2e8f0;
    --success-color: #10b981;
    --error-color: #ef4444;
    --radius-sm: 6px;
    --radius-md: 12px;
    --radius-lg: 16px;
    --shadow-sm: 0 1px 3px 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);
    --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

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

body {
    font-family: 'Inter', sans-serif;
    background-color: var(--bg-light);
    color: var(--text-main);
    line-height: 1.5;
    -webkit-font-smoothing: antialiased;
}

h1, h2, h3, h4, h5, h6 {
    font-family: 'Montserrat', sans-serif;
    font-weight: 700;
    color: var(--secondary-color);
}

/* ==========================================================================
   Contenedores de Autenticación (Setup / Login)
   ========================================================================== */
.auth-wrapper {
    display: flex;
    justify-content: center;
    align-items: center;
    min-height: 100vh;
    padding: 24px;
    background: radial-gradient(circle at 10% 20%, rgba(7, 31, 20, 0.03) 0%, rgba(227, 6, 19, 0.02) 90%), #f8fafc;
}

.auth-card {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-lg);
    width: 100%;
    max-width: 480px;
    padding: 40px;
    position: relative;
    overflow: hidden;
}

.auth-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: linear-gradient(90deg, var(--primary-color) 0%, var(--secondary-color) 100%);
}

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

.auth-logo {
    max-height: 60px;
    margin-bottom: 16px;
    object-fit: contain;
}

.auth-title {
    font-size: 24px;
    margin-bottom: 8px;
}

.auth-subtitle {
    font-size: 14px;
    color: var(--text-muted);
}

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

.form-label {
    display: block;
    font-size: 14px;
    font-weight: 600;
    color: var(--secondary-color);
    margin-bottom: 8px;
}

.form-control {
    width: 100%;
    padding: 12px 16px;
    font-family: inherit;
    font-size: 14px;
    border: 1px solid var(--border-color);
    border-radius: var(--radius-sm);
    color: var(--text-main);
    background-color: #fff;
    transition: var(--transition);
}

.form-control:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px rgba(227, 6, 19, 0.1);
}

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

/* Botones */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    padding: 12px 24px;
    font-family: 'Montserrat', sans-serif;
    font-size: 14px;
    font-weight: 600;
    border: none;
    border-radius: var(--radius-sm);
    cursor: pointer;
    transition: var(--transition);
    text-decoration: none;
}

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

.btn-primary:hover {
    background-color: var(--primary-hover);
    transform: translateY(-1px);
    box-shadow: var(--shadow-md);
}

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

.btn-secondary:hover {
    background-color: #0c3321;
    transform: translateY(-1px);
    box-shadow: var(--shadow-md);
}

.btn-outline {
    background-color: transparent;
    border: 1px solid var(--border-color);
    color: var(--text-main);
}

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

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

.btn-danger:hover {
    background-color: #dc2626;
    transform: translateY(-1px);
}

.btn-block {
    display: flex;
    width: 100%;
}

/* Alertas */
.alert {
    padding: 12px 16px;
    border-radius: var(--radius-sm);
    font-size: 14px;
    margin-bottom: 20px;
    display: flex;
    align-items: center;
    gap: 10px;
}

.alert-success {
    background-color: #ecfdf5;
    border: 1px solid #a7f3d0;
    color: #065f46;
}

.alert-error {
    background-color: #fef2f2;
    border: 1px solid #fca5a5;
    color: #991b1b;
}

/* ==========================================================================
   Layout Dashboard Principal
   ========================================================================== */
.admin-container {
    display: flex;
    min-height: 100vh;
}

/* Sidebar */
.admin-sidebar {
    width: 280px;
    background-color: var(--secondary-color);
    color: #ffffff;
    padding: 24px;
    display: flex;
    flex-direction: column;
    position: fixed;
    height: 100vh;
    left: 0;
    top: 0;
    z-index: 100;
    box-shadow: 4px 0 10px rgba(0,0,0,0.05);
}

.sidebar-header {
    display: flex;
    align-items: center;
    gap: 12px;
    padding-bottom: 24px;
    border-bottom: 1px solid rgba(255,255,255,0.1);
    margin-bottom: 24px;
}

.sidebar-logo {
    max-height: 40px;
    max-width: 100%;
    object-fit: contain;
    filter: brightness(0) invert(1); /* Logo blanco en sidebar oscuro */
}

.sidebar-title {
    color: #ffffff;
    font-size: 16px;
    font-weight: 700;
}

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

.menu-item button, .menu-item a {
    width: 100%;
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 12px 16px;
    background: transparent;
    border: none;
    color: rgba(255,255,255,0.7);
    font-family: inherit;
    font-size: 14px;
    font-weight: 500;
    border-radius: var(--radius-sm);
    cursor: pointer;
    text-align: left;
    transition: var(--transition);
    text-decoration: none;
}

.menu-item button:hover, .menu-item a:hover {
    color: #ffffff;
    background-color: rgba(255,255,255,0.05);
}

.menu-item.active button, .menu-item.active a {
    color: #ffffff;
    background-color: var(--primary-color);
}

.sidebar-footer {
    padding-top: 20px;
    border-top: 1px solid rgba(255,255,255,0.1);
}

/* Main Content */
.admin-main {
    flex-grow: 1;
    margin-left: 280px;
    padding: 40px;
    background-color: var(--bg-light);
    min-height: 100vh;
}

.admin-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 32px;
    padding-bottom: 16px;
    border-bottom: 1px solid var(--border-color);
}

.admin-page-title {
    font-size: 28px;
}

.admin-user-profile {
    display: flex;
    align-items: center;
    gap: 12px;
    font-size: 14px;
}

.admin-user-badge {
    background-color: rgba(227, 6, 19, 0.1);
    color: var(--primary-color);
    padding: 4px 10px;
    border-radius: 20px;
    font-weight: 600;
}

/* ==========================================================================
   Componentes del Dashboard (Cards, Grids, etc.)
   ========================================================================== */
.stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
    gap: 24px;
    margin-bottom: 32px;
}

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

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

.stat-icon {
    width: 48px;
    height: 48px;
    border-radius: 50%;
    background-color: rgba(7, 31, 20, 0.05);
    color: var(--secondary-color);
    display: flex;
    align-items: center;
    justify-content: center;
}

.stat-card:nth-child(2) .stat-icon {
    background-color: rgba(227, 6, 19, 0.05);
    color: var(--primary-color);
}

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

.stat-value {
    font-size: 24px;
    font-weight: 700;
    color: var(--secondary-color);
}

.stat-label {
    font-size: 13px;
    color: var(--text-muted);
}

/* Content Tabs Panels */
.tab-content {
    display: none;
    animation: fadeIn 0.4s ease;
}

.tab-content.active {
    display: block;
}

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

.panel-card {
    background-color: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    padding: 32px;
    box-shadow: var(--shadow-sm);
    margin-bottom: 24px;
}

.panel-card-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 24px;
    padding-bottom: 12px;
    border-bottom: 1px solid var(--border-color);
}

.panel-card-title {
    font-size: 18px;
    font-weight: 600;
}

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

.admin-table {
    width: 100%;
    border-collapse: collapse;
    text-align: left;
}

.admin-table th {
    background-color: var(--bg-light);
    color: var(--secondary-color);
    font-weight: 600;
    padding: 16px;
    border-bottom: 2px solid var(--border-color);
    font-size: 14px;
}

.admin-table td {
    padding: 16px;
    border-bottom: 1px solid var(--border-color);
    font-size: 14px;
    vertical-align: middle;
}

.admin-table tr:hover td {
    background-color: rgba(0,0,0,0.01);
}

/* Previsualizaciones */
.image-preview-container {
    display: flex;
    align-items: center;
    gap: 20px;
    margin-top: 10px;
}

.image-preview {
    width: 120px;
    height: 80px;
    border: 1px solid var(--border-color);
    border-radius: var(--radius-sm);
    overflow: hidden;
    background-color: #f1f5f9;
    display: flex;
    align-items: center;
    justify-content: center;
}

.image-preview img {
    max-width: 100%;
    max-height: 100%;
    object-fit: contain;
}

/* Modals de Blog */
.modal {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    z-index: 1000;
    background-color: rgba(7, 31, 20, 0.4);
    backdrop-filter: blur(4px);
    justify-content: center;
    align-items: center;
    padding: 24px;
}

.modal.active {
    display: flex;
}

.modal-content {
    background-color: var(--bg-card);
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-lg);
    width: 100%;
    max-width: 800px;
    max-height: 90vh;
    overflow-y: auto;
    display: flex;
    flex-direction: column;
}

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

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

.modal-close {
    background: transparent;
    border: none;
    font-size: 24px;
    cursor: pointer;
    color: var(--text-muted);
}

.modal-body {
    padding: 24px;
    flex-grow: 1;
}

.modal-footer {
    padding: 16px 24px;
    border-top: 1px solid var(--border-color);
    display: flex;
    justify-content: flex-end;
    gap: 12px;
}

/* Mensajes vacíos y estados */
.empty-state {
    text-align: center;
    padding: 40px 20px;
    color: var(--text-muted);
}

.empty-icon {
    font-size: 40px;
    margin-bottom: 12px;
    color: var(--border-color);
}

/* ==========================================================================
   Responsive Adaptations
   ========================================================================== */
@media (max-width: 1024px) {
    .admin-sidebar {
        width: 80px;
        padding: 16px 8px;
    }
    
    .sidebar-logo, .sidebar-title, .sidebar-footer span, .menu-item span {
        display: none;
    }
    
    .admin-main {
        margin-left: 80px;
        padding: 24px;
    }
    
    .menu-item button, .menu-item a {
        justify-content: center;
        padding: 12px;
    }
}

@media (max-width: 768px) {
    .admin-container {
        flex-direction: column;
    }
    .admin-sidebar {
        width: 100%;
        height: auto;
        position: relative;
        padding: 16px;
    }
    .sidebar-header {
        display: none;
    }
    .sidebar-menu {
        flex-direction: row;
        overflow-x: auto;
        padding-bottom: 8px;
    }
    .menu-item {
        flex-shrink: 0;
    }
    .admin-main {
        margin-left: 0;
        padding: 16px;
    }
    .admin-header {
        flex-direction: column;
        align-items: flex-start;
        gap: 12px;
    }
}