/* ============================================= */
/* VARIABLES GLOBALES - Cambiá los colores acá   */
/* ============================================= */
:root {
    /* Colores principales */
    --primary: #2563eb;
    --primary-hover: #1d4ed8;
    --primary-light: #dbeafe;
    --primary-dark: #1e40af;

    /* Colores de estado */
    --success: #16a34a;
    --success-light: #dcfce7;
    --warning: #ea580c;
    --warning-light: #fff7ed;
    --danger: #dc2626;
    --danger-light: #fef2f2;
    --info: #0891b2;
    --info-light: #ecfeff;

    /* Grises neutros */
    --gray-50: #f9fafb;
    --gray-100: #f3f4f6;
    --gray-200: #e5e7eb;
    --gray-300: #d1d5db;
    --gray-400: #9ca3af;
    --gray-500: #6b7280;
    --gray-600: #4b5563;
    --gray-700: #374151;
    --gray-800: #1f2937;
    --gray-900: #111827;

    /* Layout */
    --sidebar-width: 260px;
    --sidebar-collapsed: 72px;
    --topbar-height: 64px;
    --border-radius: 8px;
    --border-radius-lg: 12px;

    /* Sombras */
    --shadow-sm: 0 1px 2px rgba(0,0,0,0.05);
    --shadow: 0 1px 3px rgba(0,0,0,0.1), 0 1px 2px rgba(0,0,0,0.06);
    --shadow-md: 0 4px 6px rgba(0,0,0,0.07), 0 2px 4px rgba(0,0,0,0.06);
    --shadow-lg: 0 10px 15px rgba(0,0,0,0.1), 0 4px 6px rgba(0,0,0,0.05);

    /* Tipografía */
    --font: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
}

/* ============================================= */
/* DARK THEME                                    */
/* ============================================= */
[data-theme="dark"] {
    --gray-50: #111827;
    --gray-100: #1f2937;
    --gray-200: #374151;
    --gray-300: #4b5563;
    --gray-400: #6b7280;
    --gray-500: #9ca3af;
    --gray-600: #d1d5db;
    --gray-700: #e5e7eb;
    --gray-800: #f3f4f6;
    --gray-900: #f9fafb;
    --primary-light: #1e3a5f;
    --success-light: #14532d;
    --warning-light: #431407;
    --danger-light: #450a0a;
    --info-light: #164e63;
}

/* ============================================= */
/* RESET Y BASE                                  */
/* ============================================= */
*, *::before, *::after {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    font-size: 14px;
    -webkit-font-smoothing: antialiased;
}

body {
    font-family: var(--font);
    background: var(--gray-50);
    color: var(--gray-800);
    display: flex;
    min-height: 100vh;
    overflow-x: hidden;
}

/* ============================================= */
/* SIDEBAR                                       */
/* ============================================= */
.sidebar {
    width: var(--sidebar-width);
    height: 100vh;
    position: fixed;
    left: 0;
    top: 0;
    background: var(--gray-900);
    color: white;
    display: flex;
    flex-direction: column;
    transition: width 0.3s ease;
    z-index: 100;
    overflow: hidden;
}

.sidebar.collapsed {
    width: var(--sidebar-collapsed);
}

.sidebar-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 16px 20px;
    border-bottom: 1px solid rgba(255,255,255,0.08);
    min-height: 65px;
}

.logo {
    display: flex;
    align-items: center;
    gap: 12px;
    overflow: hidden;
}

.logo-icon {
    width: 28px;
    height: 28px;
    color: var(--primary);
    flex-shrink: 0;
}

.logo-text {
    display: flex;
    flex-direction: column;
    white-space: nowrap;
}

.logo-title {
    font-size: 16px;
    font-weight: 700;
    letter-spacing: -0.5px;
}

.logo-subtitle {
    font-size: 11px;
    color: var(--gray-400);
    font-weight: 400;
}

.sidebar-toggle {
    background: none;
    border: none;
    color: var(--gray-400);
    cursor: pointer;
    padding: 4px;
    border-radius: 6px;
    display: flex;
    align-items: center;
    transition: all 0.2s;
}

.sidebar-toggle:hover {
    color: white;
    background: rgba(255,255,255,0.1);
}

/* Navegación sidebar */
.sidebar-nav {
    flex: 1;
    padding: 12px 0;
    overflow-y: auto;
}

.sidebar-nav ul {
    list-style: none;
}

.nav-link {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 10px 20px;
    color: var(--gray-400);
    text-decoration: none;
    transition: all 0.2s;
    border-left: 3px solid transparent;
    font-size: 13.5px;
    font-weight: 500;
}

.nav-link:hover {
    color: white;
    background: rgba(255,255,255,0.05);
}

.nav-link.active {
    color: white;
    background: rgba(255,255,255,0.08);
    border-left-color: var(--primary);
}

.nav-link i {
    width: 20px;
    height: 20px;
    flex-shrink: 0;
}

.nav-link span {
    white-space: nowrap;
    overflow: hidden;
}

/* Sidebar collapsed */
.sidebar.collapsed .logo-text,
.sidebar.collapsed .nav-link span,
.sidebar.collapsed .sidebar-version {
    display: none;
}

.sidebar.collapsed .nav-link {
    padding: 10px;
    justify-content: center;
}

.sidebar-footer {
    padding: 8px 0;
    border-top: 1px solid rgba(255,255,255,0.08);
}

.sidebar-version {
    padding: 8px 20px;
    font-size: 11px;
    color: var(--gray-500);
}

/* ============================================= */
/* CONTENIDO PRINCIPAL                           */
/* ============================================= */
.main-content {
    margin-left: var(--sidebar-width);
    flex: 1;
    min-height: 100vh;
    transition: margin-left 0.3s ease;
}

.sidebar.collapsed ~ .main-content {
    margin-left: var(--sidebar-collapsed);
}

/* Top Bar */
.top-bar {
    height: var(--topbar-height);
    background: white;
    border-bottom: 1px solid var(--gray-200);
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0 24px;
    position: sticky;
    top: 0;
    z-index: 50;
}

[data-theme="dark"] .top-bar {
    background: var(--gray-100);
}

.top-bar-left {
    display: flex;
    align-items: center;
    gap: 16px;
}

.top-bar-right {
    display: flex;
    align-items: center;
    gap: 12px;
}

.page-title {
    font-size: 18px;
    font-weight: 600;
    color: var(--gray-900);
}

.mobile-menu-btn {
    display: none;
    background: none;
    border: none;
    cursor: pointer;
    color: var(--gray-600);
    padding: 8px;
}

/* Search box */
.search-box {
    display: flex;
    align-items: center;
    background: var(--gray-100);
    border: 1px solid var(--gray-200);
    border-radius: var(--border-radius);
    padding: 0 12px;
    height: 38px;
    width: 240px;
    transition: all 0.2s;
}

.search-box:focus-within {
    border-color: var(--primary);
    box-shadow: 0 0 0 3px var(--primary-light);
    background: white;
}

.search-box i {
    width: 16px;
    height: 16px;
    color: var(--gray-400);
    margin-right: 8px;
}

.search-box input {
    border: none;
    background: none;
    outline: none;
    font-family: var(--font);
    font-size: 13px;
    color: var(--gray-800);
    width: 100%;
}

/* ============================================= */
/* PÁGINAS                                       */
/* ============================================= */
.page {
    display: none;
    padding: 24px;
    animation: fadeIn 0.2s ease;
}

.page.active {
    display: block;
}

@keyframes fadeIn {
    from { opacity: 0; transform: translateY(4px); }
    to { opacity: 1; transform: translateY(0); }
}

/* ============================================= */
/* TARJETAS (Cards)                              */
/* ============================================= */
.card {
    background: white;
    border: 1px solid var(--gray-200);
    border-radius: var(--border-radius-lg);
    box-shadow: var(--shadow-sm);
}

[data-theme="dark"] .card {
    background: var(--gray-100);
}

.card-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 16px 20px;
    border-bottom: 1px solid var(--gray-200);
}

.card-header h2, .card-header h3 {
    font-size: 14px;
    font-weight: 600;
    color: var(--gray-800);
}

.card-link {
    font-size: 13px;
    color: var(--primary);
    text-decoration: none;
    font-weight: 500;
}

.card-link:hover {
    text-decoration: underline;
}

.card-body {
    padding: 20px;
}

.card-body.no-padding {
    padding: 0;
}

/* ============================================= */
/* BOTONES                                       */
/* ============================================= */
.btn {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    padding: 8px 16px;
    border: 1px solid transparent;
    border-radius: var(--border-radius);
    font-family: var(--font);
    font-size: 13px;
    font-weight: 500;
    cursor: pointer;
    transition: all 0.15s;
    white-space: nowrap;
}

.btn i {
    width: 16px;
    height: 16px;
}

.btn-primary {
    background: var(--primary);
    color: white;
    border-color: var(--primary);
}

.btn-primary:hover {
    background: var(--primary-hover);
}

.btn-outline {
    background: white;
    color: var(--gray-700);
    border-color: var(--gray-300);
}

.btn-outline:hover {
    background: var(--gray-50);
    border-color: var(--gray-400);
}

.btn-danger {
    background: var(--danger);
    color: white;
}

.btn-danger:hover {
    background: #b91c1c;
}

.btn-sm {
    padding: 5px 10px;
    font-size: 12px;
}

.btn:disabled {
    opacity: 0.5;
    cursor: not-allowed;
}

/* ============================================= */
/* TABLAS                                        */
/* ============================================= */
.data-table {
    width: 100%;
    border-collapse: collapse;
}

.data-table thead {
    background: var(--gray-50);
    border-bottom: 1px solid var(--gray-200);
}

.data-table th {
    padding: 10px 16px;
    text-align: left;
    font-size: 12px;
    font-weight: 600;
    color: var(--gray-500);
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.data-table td {
    padding: 12px 16px;
    border-bottom: 1px solid var(--gray-100);
    font-size: 13px;
    color: var(--gray-700);
}

.data-table tbody tr:hover {
    background: var(--gray-50);
}

.data-table .col-check {
    width: 40px;
    text-align: center;
}

/* Empty state dentro de tablas */
.empty-state {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    padding: 48px 24px;
    color: var(--gray-400);
    text-align: center;
}

.empty-state i {
    width: 48px;
    height: 48px;
    margin-bottom: 12px;
    opacity: 0.4;
}

.empty-state.large i {
    width: 64px;
    height: 64px;
}

.empty-state h3 {
    color: var(--gray-600);
    margin-bottom: 4px;
    font-size: 15px;
}

.empty-state p {
    font-size: 13px;
    margin-bottom: 16px;
}

/* ============================================= */
/* STATUS BADGES                                 */
/* ============================================= */
.status-badge {
    display: inline-flex;
    align-items: center;
    gap: 4px;
    padding: 3px 10px;
    border-radius: 20px;
    font-size: 12px;
    font-weight: 500;
}

.status-badge.pending {
    background: var(--warning-light);
    color: var(--warning);
}

.status-badge.ready {
    background: var(--success-light);
    color: var(--success);
}

.status-badge.exported {
    background: var(--primary-light);
    color: var(--primary);
}

.status-badge.error {
    background: var(--danger-light);
    color: var(--danger);
}

/* ============================================= */
/* FORMULARIOS                                   */
/* ============================================= */
.form-group {
    margin-bottom: 16px;
}

.form-group label {
    display: block;
    font-size: 13px;
    font-weight: 500;
    color: var(--gray-700);
    margin-bottom: 6px;
}

.form-input, .form-select, .form-textarea {
    width: 100%;
    padding: 8px 12px;
    border: 1px solid var(--gray-300);
    border-radius: var(--border-radius);
    font-family: var(--font);
    font-size: 13px;
    color: var(--gray-800);
    background: white;
    transition: all 0.15s;
}

[data-theme="dark"] .form-input,
[data-theme="dark"] .form-select,
[data-theme="dark"] .form-textarea {
    background: var(--gray-50);
}

.form-input:focus, .form-select:focus, .form-textarea:focus {
    outline: none;
    border-color: var(--primary);
    box-shadow: 0 0 0 3px var(--primary-light);
}

.form-textarea {
    resize: vertical;
}

.form-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 16px;
}

.form-hint {
    display: block;
    font-size: 11px;
    color: var(--gray-400);
    margin-top: 4px;
}

/* ============================================= */
/* TOGGLE SWITCH                                 */
/* ============================================= */
.toggle {
    position: relative;
    display: inline-block;
    width: 44px;
    height: 24px;
}

.toggle input {
    opacity: 0;
    width: 0;
    height: 0;
}

.toggle-slider {
    position: absolute;
    cursor: pointer;
    inset: 0;
    background: var(--gray-300);
    border-radius: 24px;
    transition: 0.3s;
}

.toggle-slider::before {
    content: '';
    position: absolute;
    height: 18px;
    width: 18px;
    left: 3px;
    bottom: 3px;
    background: white;
    border-radius: 50%;
    transition: 0.3s;
}

.toggle input:checked + .toggle-slider {
    background: var(--primary);
}

.toggle input:checked + .toggle-slider::before {
    transform: translateX(20px);
}

/* ============================================= */
/* MODALES                                       */
/* ============================================= */
.modal-overlay {
    display: none;
    position: fixed;
    inset: 0;
    background: rgba(0, 0, 0, 0.5);
    z-index: 200;
    align-items: center;
    justify-content: center;
    backdrop-filter: blur(4px);
}

.modal-overlay.active {
    display: flex;
}

.modal {
    background: white;
    border-radius: var(--border-radius-lg);
    box-shadow: var(--shadow-lg);
    width: 90%;
    max-width: 560px;
    max-height: 85vh;
    display: flex;
    flex-direction: column;
    animation: modalIn 0.2s ease;
}

.modal.large {
    max-width: 900px;
}

[data-theme="dark"] .modal {
    background: var(--gray-100);
}

@keyframes modalIn {
    from { opacity: 0; transform: scale(0.95); }
    to { opacity: 1; transform: scale(1); }
}

.modal-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 16px 20px;
    border-bottom: 1px solid var(--gray-200);
}

.modal-header h2 {
    font-size: 16px;
    font-weight: 600;
}

.modal-close {
    background: none;
    border: none;
    cursor: pointer;
    color: var(--gray-400);
    padding: 4px;
    border-radius: 6px;
    display: flex;
}

.modal-close:hover {
    background: var(--gray-100);
    color: var(--gray-600);
}

.modal-body {
    padding: 20px;
    overflow-y: auto;
    flex: 1;
}

.modal-footer {
    display: flex;
    justify-content: flex-end;
    gap: 8px;
    padding: 16px 20px;
    border-top: 1px solid var(--gray-200);
}

/* ============================================= */
/* UPLOAD ZONE                                   */
/* ============================================= */
.upload-zone {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    padding: 48px 24px;
    border: 2px dashed var(--gray-300);
    border-radius: var(--border-radius-lg);
    cursor: pointer;
    transition: all 0.2s;
    text-align: center;
}

.upload-zone:hover, .upload-zone.dragover {
    border-color: var(--primary);
    background: var(--primary-light);
}

.upload-zone i {
    width: 48px;
    height: 48px;
    color: var(--gray-400);
    margin-bottom: 12px;
}

.upload-zone h3 {
    font-size: 15px;
    color: var(--gray-700);
    margin-bottom: 4px;
}

.upload-zone p {
    font-size: 13px;
    color: var(--gray-400);
}

/* Barra de progreso */
.progress-bar {
    width: 100%;
    height: 8px;
    background: var(--gray-200);
    border-radius: 8px;
    overflow: hidden;
    margin-bottom: 8px;
}

.progress-fill {
    height: 100%;
    background: var(--primary);
    border-radius: 8px;
    transition: width 0.3s ease;
    width: 0%;
}

.progress-text {
    font-size: 13px;
    color: var(--gray-500);
}

/* ============================================= */
/* TOOLBAR                                       */
/* ============================================= */
.page-toolbar {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 16px;
    flex-wrap: wrap;
    gap: 12px;
}

.toolbar-left, .toolbar-right {
    display: flex;
    align-items: center;
    gap: 12px;
}

.toolbar-hint {
    font-size: 12px;
    color: var(--gray-400);
}

.section-title {
    font-size: 16px;
    font-weight: 600;
}

.filter-group {
    display: flex;
    gap: 8px;
}

/* ============================================= */
/* TOAST NOTIFICATIONS                           */
/* ============================================= */
.toast-container {
    position: fixed;
    bottom: 24px;
    right: 24px;
    z-index: 300;
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.toast {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 12px 16px;
    background: var(--gray-900);
    color: white;
    border-radius: var(--border-radius);
    box-shadow: var(--shadow-lg);
    font-size: 13px;
    animation: toastIn 0.3s ease;
    min-width: 280px;
}

.toast.success { border-left: 3px solid var(--success); }
.toast.error { border-left: 3px solid var(--danger); }
.toast.warning { border-left: 3px solid var(--warning); }
.toast.info { border-left: 3px solid var(--info); }

@keyframes toastIn {
    from { opacity: 0; transform: translateY(16px); }
    to { opacity: 1; transform: translateY(0); }
}

/* ============================================= */
/* RESPONSIVE                                    */
/* ============================================= */
@media (max-width: 768px) {
    .sidebar {
        transform: translateX(-100%);
    }

    .sidebar.mobile-open {
        transform: translateX(0);
    }

    .main-content {
        margin-left: 0;
    }

    .mobile-menu-btn {
        display: flex;
    }

    .search-box {
        display: none;
    }

    .page {
        padding: 16px;
    }

    .form-row {
        grid-template-columns: 1fr;
    }

    .top-bar {
        padding: 0 16px;
    }
}