/**
 * Admin Layout - Estilos Unificados para Vistas Privadas
 * ========================================================
 * Este archivo centraliza los estilos del layout de administración
 * para evitar duplicación y conflictos entre vistas.
 * 
 * Estructura esperada:
 * <div id="app-shell">
 *   <main id="app-main">
 *     <div id="divC" class="container-fluid admin-container">
 *       <div class="row admin-row">
 *         <div class="col-12 col-md-3 admin-sidebar">...</div>
 *         <div class="col-12 col-md-9 admin-content">...</div>
 *       </div>
 *     </div>
 *   </main>
 * </div>
 */

/* ===== App Shell y Main Container ===== */
#app-shell {
    display: flex;
    flex-direction: column;
    min-height: 100vh;
}

#app-main {
    flex: 1;
    overflow-y: auto;
    overflow-x: hidden;
    /* Scroll invisible */
    scrollbar-width: none; /* Firefox */
    -ms-overflow-style: none; /* IE/Edge */

}

#app-main::-webkit-scrollbar {
    display: none; /* Chrome, Safari, Opera */
}

/* ===== Reset Base para Admin ===== */
.admin-container {
    flex: 1;
    display: flex;
    flex-direction: column;
    padding-top: 0.75rem;
    padding-bottom: 0.25rem;
    min-height: calc(100vh - 120px); /* Navbar + footer */
}

/* ===== Row Principal ===== */
.admin-row {
    flex: 1;
    display: flex;
    flex-wrap: wrap;
    align-items: stretch; /* Ambas columnas misma altura */
    margin: 0 -0.75rem; /* Compensa padding de columnas */
    min-height: calc(100vh - 180px); /* Altura mínima para que ambas columnas se estiren */
}

/* ===== Sidebar (Left Menu) ===== */
.admin-sidebar {
    display: flex;
    flex-direction: column;
    padding: 0 0.75rem;
    margin-bottom: 0.25rem;
    transition: transform 0.3s ease-in-out, opacity 0.3s ease-in-out;
    overflow-y: auto;
    overflow-x: hidden;
    /* Scroll invisible */
    scrollbar-width: none; /* Firefox */
    -ms-overflow-style: none; /* IE/Edge */
}

.admin-sidebar::-webkit-scrollbar {
    display: none; /* Chrome, Safari, Opera */
}

/* Estado oculto del sidebar */
.admin-sidebar--hidden {
    display: none !important;
}

@media (max-width: 767.98px) {
    .admin-sidebar--hidden {
        transform: translateX(-100%);
        position: absolute;
        top: 0;
        left: 0;
        height: 100%;
        z-index: 1000;
    }
}

.admin-sidebar .card {
    flex: 1;
    display: flex;
    flex-direction: column;
}

.admin-sidebar .card-body {
    flex: 1;
}

/* ===== Content Principal ===== */
.admin-content {
    display: flex;
    flex-direction: column;
    padding: 0 0.75rem;
    margin-bottom: 0.25rem;
}

/* Hacer que el primer card hijo ocupe toda la altura disponible */
.admin-content > .card:first-child {
    flex: 1;
    display: flex;
    flex-direction: column;
    min-height: 100%;
}

.admin-content .card {
    flex: 1;
    display: flex;
    flex-direction: column;
}

.admin-content .card-body {
    overflow-y: auto;
    flex: 1;
    /* Ocultar scrollbar pero permitir scroll */
    scrollbar-width: none;
    -ms-overflow-style: none;
}

.admin-content .card-body::-webkit-scrollbar {
    display: none;
}

/* ===== Card Header con Acciones ===== */
.admin-content .card-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    flex-wrap: wrap;
    gap: 0.5rem;
    padding: 0.75rem 1rem;
}

.admin-content .card-header .card-title {
    margin: 0;
    font-size: 1.1rem;
    font-weight: 600;
}

.admin-content .card-header .card-actions {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    flex-wrap: wrap;
}

/* ===== Utilidades ===== */
.hide-scrollbar {
    overflow: auto;
    scrollbar-width: none;
    -ms-overflow-style: none;
}

.hide-scrollbar::-webkit-scrollbar {
    display: none;
}

/* ===== Toggle Menu Button ===== */
.admin-toggle-menu {
    position: fixed;
    top: 50%;
    left: 10px;
    z-index: 1000;
    background-color: #007bff;
    color: #fff;
    border: none;
    padding: 10px 15px;
    border-radius: 5px;
    cursor: pointer;
    font-size: 14px;
    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
    transform: translateY(-50%);
    transition: background-color 0.3s ease;
}

.admin-toggle-menu:hover {
    background-color: #0056b3;
}

@media (min-width: 768px) {
    /* Ocultar toggle en desktop - el sidebar siempre visible */
    .admin-toggle-menu {
        display: none;
    }
}

/* ===== Responsive: Mobile First ===== */

/* XS - Móviles pequeños (< 576px) */
@media (max-width: 575.98px) {
    .admin-container {
        padding-top: 0.5rem;
        padding-bottom: 0.5rem;
    }
    
    .admin-sidebar,
    .admin-content {
        padding: 0 0.5rem;
    }
    
    .admin-content .card-header {
        flex-direction: column;
        align-items: stretch;
        text-align: center;
    }
    
    .admin-content .card-header .card-actions {
        justify-content: center;
    }
}

/* SM - Móviles grandes (576px - 767px) */
@media (min-width: 576px) and (max-width: 767.98px) {
    .admin-sidebar {
        max-height: 300px;
        overflow-y: auto;
    }
}

/* MD+ - Tablets y Desktop (≥ 768px) */
@media (min-width: 768px) {
    .admin-row {
        flex-wrap: nowrap;
        min-height: calc(100vh - 180px);
        align-items: stretch; /* Ambas columnas misma altura */
    }
    
    .admin-sidebar {
        flex: 0 0 25%;
        max-width: 25%;
        position: sticky;
        top: 0; /* Alineado arriba */
        height: auto; /* Altura automática, no forzada */
        max-height: calc(100vh - 100px);
        margin-bottom: 0;
    }
    
    .admin-content {
        flex: 0 0 75%;
        max-width: 75%;
        margin-bottom: 0;
        min-height: calc(100vh - 180px);
    }
    
    .admin-content > .card:first-child,
    .admin-content > .card.mb-3:first-child {
        min-height: calc(100vh - 200px);
    }
}

/* LG - Desktop (≥ 992px) */
@media (min-width: 992px) {
    .admin-sidebar {
        flex: 0 0 20%;
        max-width: 20%;
    }
    
    .admin-content {
        flex: 0 0 80%;
        max-width: 80%;
    }
    
    .admin-content > .card:first-child,
    .admin-content > .card.mb-3:first-child {
        min-height: calc(100vh - 180px);
    }
}

/* XL - Desktop grande (≥ 1200px) */
@media (min-width: 1200px) {
    .admin-container {
        max-width: 1400px;
        margin-left: auto;
        margin-right: auto;
    }
}

/* ===== Botón Toggle Menu (Mobile) ===== */
.admin-toggle-menu {
    position: fixed;
    top: 50%;
    left: 0.5rem;
    z-index: 1050;
    background: linear-gradient(135deg, #0d6efd 0%, #0a58ca 100%);
    color: #fff;
    border: none;
    padding: 0.5rem 0.75rem;
    border-radius: 0.5rem;
    cursor: pointer;
    font-size: 0.875rem;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.15);
    transform: translateY(-50%);
    transition: all 0.2s ease;
    display: none; /* Oculto por defecto, visible solo en mobile */
}

.admin-toggle-menu:hover {
    background: linear-gradient(135deg, #0a58ca 0%, #084298 100%);
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.2);
}

.admin-toggle-menu:focus {
    outline: none;
    box-shadow: 0 0 0 3px rgba(13, 110, 253, 0.25);
}

@media (max-width: 767.98px) {
    .admin-toggle-menu {
        display: block;
    }
    
    .admin-sidebar.hidden {
        display: none !important;
    }
    
    .admin-sidebar.hidden + .admin-content {
        flex: 0 0 100%;
        max-width: 100%;
    }
}

/* ===== Loading Overlay ===== */
.admin-loading-overlay {
    position: absolute;
    inset: 0;
    display: none;
    align-items: center;
    justify-content: center;
    background: rgba(255, 255, 255, 0.8);
    backdrop-filter: blur(2px);
    z-index: 100;
}

.admin-loading-overlay.show {
    display: flex;
}

.admin-loading-overlay .spinner-container {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    background: #fff;
    padding: 1rem 1.5rem;
    border-radius: 0.5rem;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.1);
    border: 1px solid rgba(0, 0, 0, 0.05);
}

.admin-loading-overlay .spinner {
    width: 1.5rem;
    height: 1.5rem;
    border: 3px solid rgba(13, 110, 253, 0.2);
    border-top-color: #0d6efd;
    border-radius: 50%;
    animation: admin-spin 0.6s linear infinite;
}

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

.admin-loading-overlay .spinner-text {
    font-weight: 500;
    color: #0d6efd;
}

/* ===== Feedback Alerts ===== */
.admin-feedback {
    position: sticky;
    top: 0;
    z-index: 10;
    margin-bottom: 1rem;
}

/* ===== Form Grid (para Settings y formularios) ===== */
.admin-form-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 1rem 1.5rem;
}

.admin-form-grid .form-group {
    margin-bottom: 0;
}

/* ===== Secciones de Settings ===== */
.admin-section {
    border: 1px solid #e3e6ea;
    border-radius: 0.5rem;
    padding: 1rem 1.25rem;
    background: #fff;
    box-shadow: 0 1px 3px rgba(0, 0, 0, 0.04);
    margin-bottom: 1.25rem;
}

.admin-section:last-child {
    margin-bottom: 0;
}

.admin-section-title {
    font-weight: 600;
    font-size: 0.9rem;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    margin-bottom: 1rem;
    color: #495057;
    padding-bottom: 0.5rem;
    border-bottom: 1px solid #e9ecef;
}

/* ===== Badges ===== */
.badge-success-soft {
    background: #d1e7dd;
    color: #0f5132;
    border: 1px solid #badbcc;
}

.badge-danger-soft {
    background: #f8d7da;
    color: #842029;
    border: 1px solid #f5c2c7;
}

.badge-warning-soft {
    background: #fff3cd;
    color: #664d03;
    border: 1px solid #ffecb5;
}

.badge-info-soft {
    background: #cff4fc;
    color: #055160;
    border: 1px solid #b6effb;
}

/* ===== Tabla Responsiva ===== */
.admin-table-container {
    overflow-x: auto;
    overflow-y: auto;
    max-height: 70vh;
    scrollbar-width: thin;
}

.admin-table-container::-webkit-scrollbar {
    width: 6px;
    height: 6px;
}

.admin-table-container::-webkit-scrollbar-thumb {
    background: #c1c1c1;
    border-radius: 3px;
}

.admin-table-container::-webkit-scrollbar-track {
    background: #f1f1f1;
}

/* ===== Mini Spinner para Botones ===== */
.btn .mini-spinner {
    display: inline-block;
    width: 1rem;
    height: 1rem;
    border: 2px solid rgba(255, 255, 255, 0.5);
    border-right-color: transparent;
    border-radius: 50%;
    vertical-align: -2px;
    animation: admin-spin 0.6s linear infinite;
    margin-right: 0.4rem;
}

/* ===== Save Badge ===== */
.save-badge {
    font-size: 0.8rem;
    margin-left: 0.5rem;
    padding: 0.25rem 0.5rem;
    border-radius: 0.25rem;
    background: #d1e7dd;
    color: #0f5132;
    animation: fadeInOut 2s ease-in-out;
}

@keyframes fadeInOut {
    0%, 100% { opacity: 0; }
    20%, 80% { opacity: 1; }
}