/**
 * Estilos del Sidebar (Menú lateral)
 * Navegación principal del sistema
 *
 * Autor: Sistema Finanzas
 * Fecha: 2025-10-26
 */

/* ========== SIDEBAR PRINCIPAL ========== */
.sidebar {
    width: var(--sidebar-width);
    height: 100vh;
    position: fixed;
    top: 0;
    left: 0;
    background: linear-gradient(180deg, #0A1F44 0%, #1E3C72 100%);
    color: white;
    overflow-y: auto;
    overflow-x: hidden;
    transition: width var(--transition-normal);
    z-index: 1000;
    box-shadow: 2px 0 10px rgba(0, 0, 0, 0.3);
}

/* Scrollbar personalizada para el sidebar */
.sidebar::-webkit-scrollbar {
    width: 6px;
}

.sidebar::-webkit-scrollbar-track {
    background: rgba(255, 255, 255, 0.1);
}

.sidebar::-webkit-scrollbar-thumb {
    background: rgba(255, 255, 255, 0.3);
    border-radius: 3px;
}

.sidebar::-webkit-scrollbar-thumb:hover {
    background: rgba(255, 255, 255, 0.5);
}

/* ========== HEADER DEL SIDEBAR ========== */
.sidebar-header {
    padding: var(--spacing-lg);
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
    background: rgba(0, 0, 0, 0.2);
}

.logo-container {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
}

.logo-icon {
    font-size: 2.5rem;
    color: #3BAFDA;
}

.logo-text {
    font-size: 1.5rem;
    font-weight: 700;
    margin: 0;
    color: white;
    transition: opacity var(--transition-normal);
}

/* ========== NAVEGACIÓN ========== */
.sidebar-nav {
    padding: var(--spacing-md) 0;
}

.nav-list {
    list-style: none;
    margin: 0;
    padding: 0;
}

.nav-item {
    margin: 0;
}

.nav-link {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
    padding: var(--spacing-md) var(--spacing-lg);
    color: rgba(255, 255, 255, 0.8);
    text-decoration: none;
    transition: all var(--transition-fast);
    position: relative;
}

.nav-link i {
    font-size: 1.3rem;
    min-width: 24px;
    text-align: center;
    transition: transform var(--transition-fast);
}

.nav-text {
    font-weight: 500;
    font-size: 0.95rem;
    transition: opacity var(--transition-normal);
}

/* Estados del nav-link */
.nav-link:hover {
    background: rgba(59, 175, 218, 0.15);
    color: white;
}

.nav-link:hover i {
    transform: scale(1.1);
}

.nav-link.active {
    background: linear-gradient(90deg, rgba(59, 175, 218, 0.3) 0%, rgba(59, 175, 218, 0.1) 100%);
    color: white;
    border-left: 4px solid #3BAFDA;
}

.nav-link.active i {
    color: #3BAFDA;
}

/* ========== SUBITEMS (como Flujos Internos) ========== */
.nav-subitem .nav-link {
    padding-left: calc(var(--spacing-lg) + var(--spacing-md));
    font-size: 0.9rem;
}

.nav-subitem .nav-link i {
    font-size: 1.1rem;
}

/* ========== SEPARADOR ========== */
.nav-divider {
    height: 1px;
    background: rgba(255, 255, 255, 0.1);
    margin: var(--spacing-md) var(--spacing-lg);
}

/* ========== TOGGLE BUTTON ========== */
.sidebar-toggle {
    position: absolute;
    bottom: var(--spacing-lg);
    right: var(--spacing-md);
    background: rgba(59, 175, 218, 0.2);
    border: 1px solid rgba(255, 255, 255, 0.2);
    color: white;
    width: 36px;
    height: 36px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    transition: all var(--transition-fast);
}

.sidebar-toggle:hover {
    background: rgba(59, 175, 218, 0.4);
    transform: scale(1.05);
}

.sidebar-toggle i {
    transition: transform var(--transition-normal);
}

/* ========== SIDEBAR COLAPSADO ========== */
.sidebar-collapsed .sidebar {
    width: var(--sidebar-collapsed-width);
}

.sidebar-collapsed .logo-text,
.sidebar-collapsed .nav-text {
    opacity: 0;
    visibility: hidden;
}

.sidebar-collapsed .logo-container {
    justify-content: center;
}

.sidebar-collapsed .nav-link {
    justify-content: center;
    padding: var(--spacing-md) 0;
}

.sidebar-collapsed .sidebar-toggle i {
    transform: rotate(180deg);
}

.sidebar-collapsed .nav-subitem .nav-link {
    padding-left: 0;
}

/* ========== TOOLTIPS PARA SIDEBAR COLAPSADO ========== */
.sidebar-collapsed .nav-link {
    position: relative;
}

.sidebar-collapsed .nav-link::after {
    content: attr(data-tooltip);
    position: absolute;
    left: 100%;
    top: 50%;
    transform: translateY(-50%);
    background: var(--color-dark);
    color: white;
    padding: 0.5rem 1rem;
    border-radius: 4px;
    white-space: nowrap;
    opacity: 0;
    visibility: hidden;
    transition: all var(--transition-fast);
    margin-left: var(--spacing-sm);
    box-shadow: var(--shadow-md);
    z-index: 1001;
}

.sidebar-collapsed .nav-link:hover::after {
    opacity: 1;
    visibility: visible;
}

/* ========== INDICADOR DE NOTIFICACIONES ========== */
.nav-badge {
    position: absolute;
    top: 8px;
    right: 8px;
    background: var(--color-danger);
    color: white;
    font-size: 0.7rem;
    font-weight: 700;
    padding: 2px 6px;
    border-radius: 10px;
    min-width: 20px;
    text-align: center;
}

/* ========== ANIMACIONES ========== */
@keyframes slideInLeft {
    from {
        transform: translateX(-100%);
        opacity: 0;
    }
    to {
        transform: translateX(0);
        opacity: 1;
    }
}

.sidebar {
    animation: slideInLeft var(--transition-normal);
}