:root {
    /* Paleta de colores Premium */
    --primary-color: #4F46E5;
    /* Indigo moderno */
    --primary-hover: #4338CA;
    --secondary-color: #10B981;
    /* Esmeralda / Verde exito */
    --dark-bg: #111827;
    /* Gris oscuro para sidebars o modo oscuro */
    --light-bg: #F3F4F6;
    /* Color de fondo general claro */
    --text-main: #1F2937;
    /* Texto principal oscuro */
    --text-muted: #6B7280;
    /* Texto secundario */
    --border-color: #E5E7EB;
    /* Bordes sutiles */

    /* Configuración de transiciones */
    --transition-speed: 0.3s;

    /* Sidebar Widths (Estilo P2V) */
    --sidebar-width: 4.5rem;
}

html,
body {
    height: 100%;
}

body {
    font-family: 'Inter', sans-serif;
    background-color: var(--light-bg) !important;
    color: var(--text-main);
    overflow: hidden;
    /* Evitar que el body entero tenga scroll */
}

/* --- Botones --- */
.btn-primary {
    background-color: var(--primary-color);
    border-color: var(--primary-color);
    transition: all var(--transition-speed) ease;
}

.btn-primary:hover {
    background-color: var(--primary-hover);
    border-color: var(--primary-hover);
    box-shadow: 0 4px 6px -1px rgba(79, 70, 229, 0.4);
    transform: translateY(-1px);
}

.btn-success {
    background-color: var(--secondary-color);
    border-color: var(--secondary-color);
}

/* --- Cards/Paneles Premium --- */
.card {
    border: none;
    border-radius: 12px;
    box-shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.05), 0 2px 4px -1px rgba(0, 0, 0, 0.03);
    transition: box-shadow var(--transition-speed);
}

.card:hover {
    box-shadow: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -2px rgba(0, 0, 0, 0.05);
}

.card-header {
    background-color: transparent;
    border-bottom: 1px solid var(--border-color);
    padding: 1.25rem 1.5rem;
}

/* --- Formularios (Inputs) --- */
.form-control,
.form-select {
    border-radius: 8px;
    border: 1px solid var(--border-color);
    padding: 0.6rem 1rem;
    transition: border-color var(--transition-speed), box-shadow var(--transition-speed);
}

.form-control:focus,
.form-select:focus {
    border-color: var(--primary-color);
    box-shadow: 0 0 0 0.25rem rgba(79, 70, 229, 0.25);
}

/* --- Vistas de Login --- */
.login-card {
    max-width: 400px;
    width: 100%;
    margin: auto;
    border-radius: 12px;
    background-color: white;
    box-shadow: 0 10px 25px rgba(0, 0, 0, 0.05);
    padding: 2.5rem;
}

.login-header {
    text-align: center;
    margin-bottom: 2rem;
}

.login-header h2 {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--text-main);
    margin-bottom: 0.5rem;
}

/* --- Sidebar Personalizado --- */
/* --- Sidebar Personalizado (Estilo P2V) --- */
.sidebar {
    position: fixed;
    top: 0;
    left: 0;
    height: 100vh;
    width: var(--sidebar-width);
    background-color: #ffffff !important;
    border-right: 1px solid var(--border-color);
    z-index: 1000;
    padding: 0 !important;
    overflow: hidden;
    transition: all var(--transition-speed) ease;
}

.sidebar .nav-link {
    width: 100%;
    height: 4rem;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 0;
    margin: 0;
    color: var(--text-main);
    transition: all 0.2s ease;
    border-bottom: 1px solid rgba(0, 0, 0, 0.03);
}

.sidebar .nav-link i {
    font-size: 1.5rem;
    transition: transform 0.2s ease;
}

.sidebar .nav-link:hover {
    background-color: rgba(79, 70, 229, 0.08);
    color: var(--primary-color);
}

.sidebar .nav-link.active {
    background-color: rgba(79, 70, 229, 0.12) !important;
    color: var(--primary-color) !important;
    border-left: 4px solid var(--primary-color);
}

.sidebar .nav-link.active i {
    transform: scale(1.1);
    font-weight: bold;
}

/* --- Content Adjustment --- */
.content-wrapper {
    background-color: var(--light-bg);
    height: 100vh;
    overflow-y: auto;
    /* Solo el contenido tiene scroll vertical */
    margin-left: var(--sidebar-width);
    transition: margin-left var(--transition-speed) ease;
}

/* Responsividad para móviles */
@media (max-width: 991.98px) {
    .sidebar {
        display: none !important;
    }

    .content-wrapper {
        margin-left: 0 !important;
    }
}