:root {
    /* Paleta de Colores - Royal Blue & Electric Blue (Limpio y Premium) */
    --primary: #2962FF; /* Royal Blue - Vibrante y Limpio */
    --primary-hover: #1a50e2; /* Royal Blue Oscuro */
    --secondary: #4361ee; /* Electric Indigo-Blue */
    --accent: #0ea5e9; /* Light Neon Cyan */
    --success: #2e7d32; /* Premium Green */
    --danger: #d32f2f; /* Premium Red */
    --warning: #ed6c02; /* Premium Orange */

    /* Colores Neutros premium */
    --dark: #0f172a; /* Slate 900 */
    --text-main: #334155; /* Slate 700 */
    --text-light: #94a3b8; /* Slate 400 */
    --bg-body: #f8fafc; /* Slate 50 ultra limpio */
    --bg-card: #ffffff;
    --border: #e2e8f0; /* Slate 200 */

    /* Sombras */
    --shadow-sm: 0 2px 4px rgba(0, 0, 0, 0.05);
    --shadow-md: 0 4px 6px rgba(0, 0, 0, 0.07);
    --shadow-lg: 0 10px 15px rgba(0, 0, 0, 0.1);

    /* Espaciado y Radio */
    --radius-sm: 8px;
    --radius-md: 12px;
    --radius-lg: 16px;
    --spacing-xs: 4px;
    --spacing-sm: 8px;
    --spacing-md: 16px;
    --spacing-lg: 24px;
    --spacing-xl: 32px;

    /* Transiciones */
    --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

/* Reinicio Moderno */
*,
*::before,
*::after {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

body {
    font-family: 'Inter', system-ui, -apple-system, sans-serif;
    background-color: var(--bg-body);
    color: var(--text-main);
    line-height: 1.6;
    min-height: 100vh;
    display: flex;
}

/* Contenido Principal */
.main-content {
    flex: 1;
    margin-left: 260px;
    /* Ancho de la barra lateral */
    padding: var(--spacing-lg);
    transition: var(--transition);
}

@media (max-width: 1024px) {
    .main-content {
        margin-left: 0;
        padding: var(--spacing-md);
        padding-bottom: 80px;
        /* Espacio para navegación móvil si es necesario */
    }
}

/* Tipografía */
h1,
h2,
h3,
h4,
h5,
h6 {
    color: var(--dark);
    font-weight: 700;
    line-height: 1.2;
}

/* Banner de Títulos */
.titulo {
    font-size: 2rem;
    margin-bottom: var(--spacing-lg);
    background: var(--primary);
    color: white;
    padding: var(--spacing-md) var(--spacing-lg);
    border-radius: var(--radius-md);
    text-align: center;
    box-shadow: var(--shadow-md);
    display: block;
    width: 100%;
    text-transform: uppercase;
    font-weight: 800;
    letter-spacing: 1px;
}

.subtitulo {
    font-size: 1.25rem;
    color: var(--text-light);
    margin-bottom: var(--spacing-md);
    font-weight: 600;
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
}

/* Tarjetas y Contenedores */
.container {
    width: 100%;
    max-width: 100%;
}

.card-container {
    background: var(--bg-card);
    border-radius: var(--radius-lg);
    padding: var(--spacing-lg);
    box-shadow: var(--shadow-md);
    margin-bottom: var(--spacing-lg);
    border: 1px solid rgba(255, 255, 255, 0.5);
}

/* Cuadrícula Dashboard */
.cards-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
    gap: var(--spacing-lg);
    margin-bottom: var(--spacing-xl);
}

.stat-card {
    background: var(--bg-card);
    padding: var(--spacing-lg);
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-sm);
    transition: var(--transition);
    border-left: 4px solid var(--primary);
    position: relative;
    overflow: hidden;
}

.stat-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-lg);
}

.stat-card h3 {
    font-size: 0.9rem;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    color: var(--text-light);
    margin-bottom: var(--spacing-sm);
}

.stat-card .valor {
    font-size: 2rem;
    font-weight: 800;
    color: var(--dark);
}

/* Tablas */
.table-responsive, .tabla-container {
    background: var(--bg-card);
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-sm);
    border: 1px solid var(--border);
    overflow-x: auto;
    margin-bottom: var(--spacing-lg);
}

table {
    width: 100%;
    border-collapse: collapse;
    background: var(--bg-card);
    white-space: nowrap;
}

thead {
    background: #f8fafc;
    border-bottom: 2px solid var(--border);
}

th {
    padding: 16px 20px;
    text-align: left;
    font-weight: 700;
    color: var(--dark);
    font-size: 0.85rem;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

td {
    padding: 16px 20px;
    border-bottom: 1px solid var(--border);
    color: var(--text-main);
    font-size: 0.95rem;
}

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

tbody tr {
    transition: var(--transition);
}

tbody tr:hover {
    background-color: #f8fafc !important;
}

.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 10px 20px;
    border-radius: 12px;
    font-weight: 600;
    text-decoration: none;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    border: none;
    cursor: pointer;
    gap: 8px;
    font-size: 0.9rem;
}

.btn-primary {
    background: linear-gradient(135deg, var(--secondary), var(--primary));
    color: white;
    box-shadow: 0 4px 14px rgba(41, 98, 255, 0.35);
}

.btn-primary:hover {
    background: linear-gradient(135deg, var(--primary), var(--secondary));
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(41, 98, 255, 0.45);
}

.btn-primary:active {
    transform: translateY(1px);
    box-shadow: 0 2px 8px rgba(41, 98, 255, 0.2);
}

.btn-danger {
    background: linear-gradient(135deg, #ff4757, #d32f2f);
    color: white;
    box-shadow: 0 4px 14px rgba(211, 47, 47, 0.35);
}

.btn-danger:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(211, 47, 47, 0.45);
}

.btn-danger:active {
    transform: translateY(1px);
    box-shadow: 0 2px 8px rgba(211, 47, 47, 0.2);
}

.acciones {
    display: flex;
    gap: var(--spacing-sm);
}

/* Formularios */
input[type="text"],
input[type="number"],
input[type="email"],
input[type="password"],
select {
    width: 100%;
    padding: 10px 14px;
    border: 1px solid var(--border);
    border-radius: var(--radius-sm);
    font-size: 1rem;
    transition: var(--transition);
    background: #f9f9f9;
}

input:focus {
    outline: none;
    border-color: var(--primary);
    background: white;
    box-shadow: 0 0 0 3px rgba(67, 97, 238, 0.15);
}

label {
    display: block;
    margin-bottom: var(--spacing-xs);
    font-weight: 500;
    color: var(--text-main);
}

/* Utilidades */
.form-grid-row {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
    gap: var(--spacing-md);
    margin-bottom: var(--spacing-md);
}

.text-center {
    text-align: center;
}

.mb-4 {
    margin-bottom: var(--spacing-xl);
}

.mt-4 {
    margin-top: var(--spacing-xl);
}

.btn-guardar {
    background: linear-gradient(135deg, var(--secondary), var(--primary));
    color: white;
    padding: 12px 24px;
    border-radius: 12px;
    border: none;
    font-weight: 600;
    cursor: pointer;
    box-shadow: 0 4px 14px rgba(41, 98, 255, 0.35);
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    text-transform: uppercase;
    letter-spacing: 0.5px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
}

.btn-guardar:hover {
    background: linear-gradient(135deg, var(--primary), var(--secondary));
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(41, 98, 255, 0.45);
}

.btn-guardar:active {
    transform: translateY(1px);
    box-shadow: 0 2px 8px rgba(41, 98, 255, 0.2);
}

/* Botón Premium para Reportes PDF */
.btn-pdf-premium {
    background: linear-gradient(135deg, #10B981, #059669);
    color: white !important;
    padding: 8px 20px;
    border-radius: 10px;
    font-weight: 600;
    font-size: 0.9rem;
    text-decoration: none;
    display: inline-flex;
    align-items: center;
    gap: 8px;
    box-shadow: 0 4px 12px rgba(16, 185, 129, 0.3);
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    cursor: pointer;
    border: none;
}

.btn-pdf-premium:hover {
    background: linear-gradient(135deg, #059669, #10B981);
    transform: translateY(-2px);
    box-shadow: 0 6px 16px rgba(16, 185, 129, 0.45);
}

.btn-pdf-premium:active {
    transform: translateY(1px);
    box-shadow: 0 2px 6px rgba(16, 185, 129, 0.2);
}

/* Botón Premium Indigo para Códigos/Etiquetas */
.btn-indigo-premium {
    background: linear-gradient(135deg, #6366F1, #4F46E5);
    color: white !important;
    padding: 10px 20px;
    border-radius: 12px;
    font-weight: 600;
    font-size: 0.9rem;
    text-decoration: none;
    display: inline-flex;
    align-items: center;
    gap: 8px;
    box-shadow: 0 4px 14px rgba(79, 70, 229, 0.35);
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    cursor: pointer;
    border: none;
}

.btn-indigo-premium:hover {
    background: linear-gradient(135deg, #4F46E5, #6366F1);
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(79, 70, 229, 0.45);
}

.btn-indigo-premium:active {
    transform: translateY(1px);
    box-shadow: 0 2px 8px rgba(79, 70, 229, 0.2);
}

/* ---------------- RESPONSIVE DESIGN (Tablets y Celulares) ---------------- */

/* Tablets (max-width: 1024px) */
@media (max-width: 1024px) {
    .cards-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

/* Celulares (max-width: 768px) */
@media (max-width: 1024px) {
    body {
        font-size: 14px;
    }

    .titulo {
        font-size: 1.5rem;
        padding: var(--spacing-sm) var(--spacing-md);
    }

    .cards-grid {
        grid-template-columns: 1fr;
    }

    .card-container {
        padding: var(--spacing-md);
    }

    .main-content {
        padding: var(--spacing-sm);
        padding-top: 70px; /* Para que no lo tape el navbar en mobile */
    }

    /* Tablas responsive: Transformación premium a tarjetas en mobile */
    .table-responsive table,
    .tabla-container table,
    .carrito-table {
        border: 0 !important;
        white-space: normal !important;
    }
    
    .table-responsive thead,
    .tabla-container thead,
    .carrito-table thead {
        display: none !important; /* Esconder cabecera tradicional */
    }
    
    .table-responsive tr,
    .tabla-container tr,
    .carrito-table tr {
        display: block !important;
        margin-bottom: var(--spacing-md) !important;
        background: var(--bg-card) !important;
        border: 1px solid var(--border) !important;
        border-radius: var(--radius-md) !important;
        box-shadow: var(--shadow-sm) !important;
        padding: var(--spacing-sm) !important;
    }
    
    .table-responsive td,
    .tabla-container td,
    .carrito-table td {
        display: flex !important;
        justify-content: space-between !important;
        align-items: center !important;
        border-bottom: 1px solid rgba(0, 0, 0, 0.05) !important;
        padding: var(--spacing-sm) var(--spacing-md) !important;
        text-align: right !important;
        font-size: 0.9rem !important;
    }
    
    .table-responsive td:last-child,
    .tabla-container td:last-child,
    .carrito-table td:last-child {
        border-bottom: 0 !important;
    }
    
    .table-responsive td::before,
    .tabla-container td::before,
    .carrito-table td::before {
        content: attr(data-label) !important;
        font-weight: 700 !important;
        text-transform: uppercase !important;
        font-size: 0.75rem !important;
        letter-spacing: 0.5px !important;
        color: var(--text-light) !important;
        text-align: left !important;
        margin-right: var(--spacing-md) !important;
        flex-shrink: 0 !important;
    }
    
    .table-responsive .acciones,
    .tabla-container .acciones {
        flex-direction: row !important;
        justify-content: flex-end !important;
        gap: var(--spacing-sm) !important;
        width: auto !important;
    }
}

    .btn {
        padding: 6px 10px;
        font-size: 0.8rem;
    }
}

@media print {
    body {
        background-color: white;
    }

    .main-content {
        margin-left: 0;
        padding: 0;
        width: 100%;
    }

    .menu-lateral,
    .navbar,
    .top-bar,
    .card .list,
    .card,
    #sidebar,
    .mobile-nav-toggle {
        display: none !important;
    }

    .btn-guardar,
    button {
        display: none !important;
    }

    .titulo,
    .subtitulo {
        text-align: center;
        color: black;
    }

    .stat-card {
        border: 1px solid #ddd;
        box-shadow: none;
    }

    table {
        width: 100%;
        border-collapse: collapse;
    }

    th, td {
        border: 1px solid black;
        padding: 8px;
        color: black;
    }

    thead {
        display: table-header-group;
    }

    th {
        background-color: #f2f2f2 !important;
        -webkit-print-color-adjust: exact; /* Safari */
        print-color-adjust: exact;
    }

    /* Ocultar elementos de formulario de filtro al imprimir */
    form {
        display: none !important;
    }
}