/* Cortinilla de transición */
.page-loader {
    position: fixed;
    inset: 0;
    z-index: 99999;
    background: var(--theme-bg-primary, #000000);
    display: flex;
    align-items: center;
    justify-content: center;
    transform: translateY(0);
    transition: transform 0.6s cubic-bezier(0.76, 0, 0.24, 1);
}

.page-loader.is-hidden {
    transform: translateY(-100%);
    pointer-events: none;
}

.page-loader-content {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 1.5rem;
}

.page-loader-logo {
    width: 80px;
    height: auto;
    animation: loaderPulse 1.6s ease-in-out infinite;
}

.page-loader-title {
    color: #ffffff;
    font-family: "Montserrat", sans-serif;
    font-size: 1.25rem;
    font-weight: 700;
    letter-spacing: 0.5px;
    margin: 0;
    text-align: center;
}

.page-loader-subtitle {
    color: rgba(255, 255, 255, 0.6);
    font-family: "Montserrat", sans-serif;
    font-size: 0.85rem;
    font-weight: 500;
    margin: 0;
    text-align: center;
    max-width: 320px;
    line-height: 1.4;
}

.page-loader-spinner {
    width: 32px;
    height: 32px;
    border: 3px solid rgba(255, 255, 255, 0.15);
    border-top-color: rgba(255, 255, 255, 0.8);
    border-radius: 50%;
    animation: loaderSpin 0.8s linear infinite;
}

@keyframes loaderPulse {
    0%, 100% { opacity: 0.6; transform: scale(1); }
    50% { opacity: 1; transform: scale(1.05); }
}

@keyframes loaderSpin {
    to { transform: rotate(360deg); }
}

/* Variables CSS para personalización de colores */
:root {
    --theme-bg-primary: #000000;
    --theme-bg-secondary: #1a1a1a;
    --theme-text-primary: #ffffff;
    --theme-text-secondary: #8b92a9;
    --theme-text-muted: #e2e5ee;
    --theme-accent: #ffffff;
    --theme-hover-bg: rgba(255, 255, 255, 0.1);
    --theme-active-bg: rgba(255, 255, 255, 0.15);
    --theme-border: rgba(255, 255, 255, 0.1);
}

/* Estilos globales */
.sb-topnav,
.sb-sidenav,
.sb-sidenav-header h1,
.sb-sidenav-menu-heading,
.sb-sidenav .nav-link,
.navbar-brand,
.dropdown-item {
    font-family: "Montserrat", sans-serif;
}

/* Estilos del Navbar */
.sb-topnav {
    background: var(--theme-bg-primary);
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
    height: 56px;
    padding: 0 1rem;
}

.navbar-brand {
    color: var(--theme-text-primary) !important;
    font-weight: 600;
    font-size: 1.1rem;
    padding: 0.5rem 1rem;
    transition: color 0.2s ease-in-out;
}

.navbar-brand:hover {
    color: var(--theme-text-muted) !important;
}

.highlight-text {
    font-weight: bold;
    color: var(--theme-text-primary);
}

/* Botón toggle */
#sidebarToggle {
    color: var(--theme-text-secondary);
    padding: 0.5rem;
    border-radius: 4px;
    transition: all 0.2s ease;
}

#sidebarToggle:hover {
    color: var(--theme-text-primary);
    background: var(--theme-hover-bg);
    transform: scale(1.05);
}

/* Dropdown usuario */
.nav-item.dropdown > .nav-link {
    color: var(--theme-text-secondary);
    padding: 0.5rem;
    border-radius: 4px;
    transition: all 0.2s ease;
}

.nav-item.dropdown > .nav-link:hover {
    color: var(--theme-text-primary);
    background: var(--theme-hover-bg);
}

.dropdown-menu {
    background: var(--theme-bg-primary);
    border: 1px solid var(--theme-border);
    margin-top: 0.5rem;
    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
}

.dropdown-item {
    color: var(--theme-text-secondary);
    padding: 0.5rem 1rem;
    transition: all 0.2s ease;
    font-weight: 500;
}

.dropdown-item:hover {
    color: var(--theme-text-primary);
    background: var(--theme-hover-bg);
}

.dropdown-menu.show {
    animation: fadeIn 0.2s ease;
}

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

    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* Estilos del Sidenav */
.sb-sidenav {
    background: var(--theme-bg-primary);
    box-shadow: 2px 0 5px rgba(0, 0, 0, 0.1);
    transition: all 0.3s ease;
}

.sb-sidenav-menu-heading {
    color: var(--theme-text-secondary);
    font-size: 0.85rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    padding: 1.5rem 1rem 0.5rem;
}

.sb-sidenav-search {
    padding: 0.75rem 1rem 0.35rem;
}

.sb-sidenav-search-box {
    position: relative;
    display: flex;
    align-items: center;
    border: 1px solid var(--theme-border);
    border-radius: 8px;
    background: var(--theme-bg-secondary);
}

.sb-sidenav-search-box > .fa-search {
    position: absolute;
    left: 0.75rem;
    color: var(--theme-text-secondary);
    font-size: 0.85rem;
    pointer-events: none;
}

.sb-sidenav-search-input {
    width: 100%;
    border: none;
    outline: none;
    background: transparent;
    color: var(--theme-text-primary);
    font-size: 0.88rem;
    padding: 0.55rem 2.1rem 0.55rem 2.1rem;
}

.sb-sidenav-search-input::placeholder {
    color: var(--theme-text-secondary);
}

.sb-sidenav-search-clear {
    position: absolute;
    right: 0.45rem;
    border: none;
    background: transparent;
    color: var(--theme-text-secondary);
    width: 1.45rem;
    height: 1.45rem;
    border-radius: 999px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    pointer-events: none;
    transition: all 0.2s ease;
}

.sb-sidenav-search-clear.is-visible {
    opacity: 1;
    pointer-events: auto;
}

.sb-sidenav-search-clear:hover {
    color: var(--theme-text-primary);
    background: var(--theme-hover-bg);
}

.sb-sidenav-search-no-results {
    color: var(--theme-text-secondary);
    font-size: 0.82rem;
    font-weight: 600;
    margin: 0.6rem 1rem 0.3rem;
    padding: 0.5rem 0.6rem;
    border: 1px dashed var(--theme-border);
    border-radius: 8px;
    display: none;
}

.sb-sidenav-search-no-results.show {
    display: block;
}

.sb-sidenav .is-search-hidden {
    display: none !important;
}

.sb-sidenav .nav-link {
    color: var(--theme-text-muted);
    padding: 0.75rem 1rem;
    margin: 0.2rem 0.7rem;
    border-radius: 6px;
    transition: all 0.2s ease-in-out;
    font-weight: 700;
}

.sb-sidenav .nav-link:hover {
    background-color: var(--theme-hover-bg);
    color: var(--theme-text-primary);
    transform: translateX(3px);
}

.sb-sidenav .nav-link.active-current {
    background-color: var(--theme-active-bg);
    color: var(--theme-text-primary);
    border-left: 4px solid var(--theme-accent);
    font-weight: 800;
}

.sb-nav-link-icon {
    width: 1.5rem;
    text-align: center;
    margin-right: 0.5rem;
    color: var(--theme-text-secondary);
}

.nav-link:hover .sb-nav-link-icon {
    color: var(--theme-text-primary);
}

/* Logo y header */
.sb-sidenav-logo {
    padding: 1rem;
    text-align: center;
    background: var(--theme-bg-primary);
}

.sb-sidenav-logo img {
    max-width: 70px;
    height: auto;
    transition: all 0.3s ease;
}

.sb-sidenav-header {
    padding: 1rem;
    text-align: center;
    background: var(--theme-bg-primary);
}

.sb-sidenav-header h1 {
    color: var(--theme-text-primary);
    font-size: 15px;
    font-weight: 700;
    margin: 0;
    letter-spacing: 0.5px;
}

.sb-sidenav-header-legend {
    color: var(--theme-text-secondary);
    font-size: 12px;
    font-weight: 500;
    line-height: 1.35;
    margin: 0.4rem 0 0;
}

/* Menú desplegable */
.sb-sidenav-menu-nested {
    padding-left: 0;
}

.sb-sidenav-menu-nested .nav-link {
    padding: 0.5rem 1rem 0.5rem 1rem;
    font-size: 0.9rem;
    opacity: 0.9;
    margin-left: 0.5rem;
    margin-right: 0.5rem;
    text-align: left;
}

.sb-sidenav-collapse-arrow {
    transition: transform 0.3s ease;
}

.nav-link.collapsed .sb-sidenav-collapse-arrow {
    transform: rotate(0deg);
}

.nav-link:not(.collapsed) .sb-sidenav-collapse-arrow {
    transform: rotate(180deg);
}

.collapse-custom {
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.2s ease-out;
}

.collapse-custom.show {
    max-height: 200px;
}

/* Scrollbar del sidebar - estilo camuflado */
.sb-sidenav {
    scrollbar-width: thin;
    scrollbar-color: rgba(255, 255, 255, 0.3) transparent;
}

.sb-sidenav::-webkit-scrollbar {
    width: 6px;
}

.sb-sidenav::-webkit-scrollbar-track {
    background: transparent;
}

.sb-sidenav::-webkit-scrollbar-thumb {
    background-color: rgba(255, 255, 255, 0.3);
    border-radius: 10px;
    border: none;
}

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

/* Responsive */
@media (max-width: 120px) {
    .sb-sidenav-logo img {
        max-width: 120px;
    }

    .sb-sidenav-header h1 {
        font-size: 1rem;
    }
}

/* Modal de personalizacion de colores */
/* Estilos del Modal de Personalización de Colores */
.theme-modal-dialog {
    max-width: 95%;
    width: 95%;
}

@media (min-width: 1200px) {
    .theme-modal-dialog {
        max-width: 1140px;
    }
}

#modalPersonalizarColores .modal-content {
    border: none;
    border-radius: 20px;
    overflow: hidden;
    box-shadow: 0 25px 50px -12px rgba(0, 0, 0, 0.25);
}

.theme-modal-header {
    background: #1e1e2e;
    color: white;
    border-bottom: none;
    padding: 1.75rem 2rem;
}

.theme-modal-icon {
    width: 52px;
    height: 52px;
    background: rgba(255, 255, 255, 0.15);
    border-radius: 14px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.4rem;
}

#modalPersonalizarColores .modal-subtitle {
    font-size: 0.9rem;
    color: rgba(255, 255, 255, 0.7);
}

.theme-modal-body {
    padding: 2rem;
    background: #f8fafc;
}

.theme-grid {
    display: grid;
    grid-template-columns: repeat(5, 1fr);
    gap: 1.25rem;
}

@media (max-width: 1400px) {
    .theme-grid {
        grid-template-columns: repeat(4, 1fr);
    }
}

@media (max-width: 992px) {
    .theme-grid {
        grid-template-columns: repeat(3, 1fr);
    }
}

@media (max-width: 768px) {
    .theme-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

.theme-card {
    cursor: pointer;
    border-radius: 12px;
    overflow: hidden;
    background: white;
    box-shadow: 0 1px 3px rgba(0, 0, 0, 0.1);
    transition: all 0.25s ease;
    border: 3px solid transparent;
}

.theme-card:hover {
    transform: translateY(-4px);
    box-shadow: 0 12px 24px rgba(0, 0, 0, 0.15);
}

.theme-card[role="button"] {
    user-select: none;
}

.theme-card:focus-visible {
    outline: none;
    border-color: #3b82f6;
    box-shadow: 0 0 0 4px rgba(59, 130, 246, 0.35);
}

.theme-card.active {
    border-color: #3b82f6;
    box-shadow: 0 0 0 3px rgba(59, 130, 246, 0.2);
}

.theme-card.active .theme-check {
    opacity: 1;
}

.theme-preview {
    height: 80px;
    display: flex;
    overflow: hidden;
}

.preview-sidebar {
    width: 30%;
    height: 100%;
}

.preview-content {
    width: 70%;
    display: flex;
    flex-direction: column;
}

.preview-topbar {
    height: 20%;
}

.preview-main {
    flex: 1;
    background: #f1f5f9;
}

.theme-info {
    padding: 0.75rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
    border-top: 1px solid #e2e8f0;
}

.theme-name {
    font-weight: 600;
    font-size: 0.85rem;
    color: #334155;
}

.theme-check {
    color: #3b82f6;
    font-size: 1.1rem;
    opacity: 0;
    transition: opacity 0.2s ease;
}

.theme-modal-footer {
    background: #f8fafc;
    border-top: 1px solid #e2e8f0;
    padding: 1.25rem 2rem;
}

.theme-modal-footer .btn {
    padding: 0.6rem 1.25rem;
    border-radius: 8px;
    font-weight: 600;
}

.theme-modal-footer .btn-primary {
    background: #1e1e2e;
    border: none;
}

.theme-modal-footer .btn-primary:hover {
    background: #2d2d3f;
}

/* Previews de cada tema */
.theme-preview-negro .preview-sidebar,
.theme-preview-negro .preview-topbar {
    background: #000000;
}

.theme-preview-azul-marino .preview-sidebar,
.theme-preview-azul-marino .preview-topbar {
    background: #0f172a;
}

.theme-preview-verde-bosque .preview-sidebar,
.theme-preview-verde-bosque .preview-topbar {
    background: #14332a;
}

.theme-preview-burdeos .preview-sidebar,
.theme-preview-burdeos .preview-topbar {
    background: #4a1c24;
}

.theme-preview-purpura .preview-sidebar,
.theme-preview-purpura .preview-topbar {
    background: #2d1b4e;
}

.theme-preview-cafe .preview-sidebar,
.theme-preview-cafe .preview-topbar {
    background: #3d2914;
}

.theme-preview-gris-carbon .preview-sidebar,
.theme-preview-gris-carbon .preview-topbar {
    background: #374151;
}

.theme-preview-azul-cobalto .preview-sidebar,
.theme-preview-azul-cobalto .preview-topbar {
    background: #1e3a5f;
}

.theme-preview-turquesa .preview-sidebar,
.theme-preview-turquesa .preview-topbar {
    background: #134e4a;
}

.theme-preview-rosa-atardecer .preview-sidebar,
.theme-preview-rosa-atardecer .preview-topbar {
    background: #581c3c;
}

.theme-preview-esmeralda .preview-sidebar,
.theme-preview-esmeralda .preview-topbar {
    background: #064e3b;
}

.theme-preview-indigo .preview-sidebar,
.theme-preview-indigo .preview-topbar {
    background: #312e81;
}

.theme-preview-terracota .preview-sidebar,
.theme-preview-terracota .preview-topbar {
    background: #7c2d12;
}

.theme-preview-petroleo .preview-sidebar,
.theme-preview-petroleo .preview-topbar {
    background: #164e63;
}

.theme-preview-oliva .preview-sidebar,
.theme-preview-oliva .preview-topbar {
    background: #3f3f2f;
}

.theme-preview-coral .preview-sidebar,
.theme-preview-coral .preview-topbar {
    background: #9f1239;
}

.theme-preview-azul-cielo .preview-sidebar,
.theme-preview-azul-cielo .preview-topbar {
    background: #0c4a6e;
}

.theme-preview-lavanda .preview-sidebar,
.theme-preview-lavanda .preview-topbar {
    background: #5b21b6;
}

.theme-preview-menta .preview-sidebar,
.theme-preview-menta .preview-topbar {
    background: #047857;
}

.theme-preview-ambar .preview-sidebar,
.theme-preview-ambar .preview-topbar {
    background: #78350f;
}

.theme-preview-cobre .preview-sidebar,
.theme-preview-cobre .preview-topbar {
    background: #92400e;
}

.theme-preview-azul-electrico .preview-sidebar,
.theme-preview-azul-electrico .preview-topbar {
    background: #1e40af;
}

.theme-preview-verde-lima .preview-sidebar,
.theme-preview-verde-lima .preview-topbar {
    background: #365314;
}

.theme-preview-magenta .preview-sidebar,
.theme-preview-magenta .preview-topbar {
    background: #831843;
}

.theme-preview-azul-acero .preview-sidebar,
.theme-preview-azul-acero .preview-topbar {
    background: #1e3a8a;
}

.theme-preview-naranja-fuego .preview-sidebar,
.theme-preview-naranja-fuego .preview-topbar {
    background: #c2410c;
}

.theme-preview-verde-esmeralda-oscuro .preview-sidebar,
.theme-preview-verde-esmeralda-oscuro .preview-topbar {
    background: #022c22;
}

.theme-preview-violeta-oscuro .preview-sidebar,
.theme-preview-violeta-oscuro .preview-topbar {
    background: #4c1d95;
}