/* ==========================================================================
   CSS VARIABLES & DESIGN SYSTEM (Premium Theme Support)
   ========================================================================== */
:root {
    /* Fonts */
    --font-primary: 'Outfit', -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
    
    /* Transitions */
    --transition-fast: 0.2s cubic-bezier(0.4, 0, 0.2, 1);
    --transition-normal: 0.35s cubic-bezier(0.4, 0, 0.2, 1);
    
    /* Level Colors (Light Theme Defaults) */
    --color-lvl1-bg: #d5f5e3;
    --color-lvl1-text: #1a6e3f;
    --color-lvl2-bg: #bdd7ee;
    --color-lvl2-text: #1f4e79;
    --color-lvl3-bg: #fff2cc;
    --color-lvl3-text: #7f6000;
    --color-lvl4-bg: #fce4d6;
    --color-lvl4-text: #c65911;
    --color-lvl5-bg: #ffd7d7;
    --color-lvl5-text: #c00000;
    
    /* General Accent Colors */
    --color-success: #10b981;
    --color-success-bg: #d1fae5;
    --color-danger: #ef4444;
    --color-danger-bg: #fee2e2;
    --color-warning: #f59e0b;
}

/* Light Theme Variables */
html[data-theme="light"] {
    --bg-page: #f1f5f9;
    --bg-card: rgba(255, 255, 255, 0.85);
    --border-card: rgba(148, 163, 184, 0.25);
    --shadow-card: 0 8px 32px 0 rgba(148, 163, 184, 0.12);
    
    --text-primary: #0f172a;
    --text-secondary: #475569;
    --text-muted: #64748b;
    --text-inverse: #f8fafc;
    
    --accent: #2e75b6;
    --accent-hover: #1f4e79;
    --accent-bg: #e2eaf4;
    --header-bg: rgba(255, 255, 255, 0.8);
    
    --border-divider: #cbd5e1;
    --table-header-bg: #2e75b6;
    --table-row-hover: rgba(203, 213, 225, 0.3);
    
    --input-bg: #ffffff;
    --input-border: #cbd5e1;
    --input-focus: #2e75b6;
}

/* Dark Theme Variables */
html[data-theme="dark"] {
    --bg-page: #0f172a;
    --bg-card: rgba(30, 41, 59, 0.75);
    --border-card: rgba(255, 255, 255, 0.08);
    --shadow-card: 0 8px 32px 0 rgba(0, 0, 0, 0.37);
    
    --text-primary: #f8fafc;
    --text-secondary: #cbd5e1;
    --text-muted: #94a3b8;
    --text-inverse: #0f172a;
    
    --accent: #3b82f6;
    --accent-hover: #60a5fa;
    --accent-bg: rgba(59, 130, 246, 0.15);
    --header-bg: rgba(15, 23, 42, 0.8);
    
    --border-divider: #334155;
    --table-header-bg: #1e3a8a;
    --table-row-hover: rgba(51, 65, 85, 0.5);
    
    --input-bg: #0f172a;
    --input-border: #334155;
    --input-focus: #3b82f6;
    
    /* Dark Theme Levels (Softer background, lighter text for legibility) */
    --color-lvl1-bg: #064e3b;
    --color-lvl1-text: #a7f3d0;
    --color-lvl2-bg: #1e3a8a;
    --color-lvl2-text: #bfdbfe;
    --color-lvl3-bg: #78350f;
    --color-lvl3-text: #fef3c7;
    --color-lvl4-bg: #7c2d12;
    --color-lvl4-text: #ffedd5;
    --color-lvl5-bg: #7f1d1d;
    --color-lvl5-text: #fee2e2;
}

/* ==========================================================================
   GLOBAL RESET & STYLES
   ========================================================================== */
* {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

body {
    font-family: var(--font-primary);
    background-color: var(--bg-page);
    color: var(--text-primary);
    line-height: 1.5;
    transition: background-color var(--transition-normal), color var(--transition-normal);
    min-height: 100vh;
    display: flex;
    flex-direction: column;
}

/* ==========================================================================
   LAYOUT STRUCTURE
   ========================================================================== */
.app-header {
    position: sticky;
    top: 0;
    z-index: 100;
    background-color: var(--header-bg);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border-bottom: 1px solid var(--border-divider);
    transition: background-color var(--transition-normal), border-color var(--transition-normal);
}

.header-container {
    max-width: 1600px;
    margin: 0 auto;
    padding: 1.25rem 2rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.logo-area {
    display: flex;
    align-items: center;
    gap: 0.75rem;
}

.logo-dot {
    width: 12px;
    height: 12px;
    background-color: var(--accent);
    border-radius: 50%;
    box-shadow: 0 0 12px var(--accent);
    display: inline-block;
    transition: background-color var(--transition-normal), box-shadow var(--transition-normal);
}

.logo-area h1 {
    font-size: 1.5rem;
    font-weight: 700;
    letter-spacing: -0.5px;
    color: var(--text-primary);
}

.logo-area .accent-text {
    color: var(--accent);
    font-weight: 400;
}

.app-content {
    flex: 1;
    max-width: 1600px;
    width: 100%;
    margin: 0 auto;
    padding: 2rem;
}

.grid-container {
    display: grid;
    grid-template-columns: 380px 1fr;
    gap: 2rem;
    align-items: start;
}

@media (max-width: 1024px) {
    .grid-container {
        grid-template-columns: 1fr;
    }
}

.app-footer {
    text-align: center;
    padding: 1.5rem;
    border-top: 1px solid var(--border-divider);
    font-size: 0.85rem;
    color: var(--text-muted);
}

/* ==========================================================================
   CARDS & CONTAINERS
   ========================================================================== */
.card-glass {
    background: var(--bg-card);
    backdrop-filter: blur(16px);
    -webkit-backdrop-filter: blur(16px);
    border: 1px solid var(--border-card);
    border-radius: 16px;
    padding: 2rem;
    box-shadow: var(--shadow-card);
    transition: background var(--transition-normal), border var(--transition-normal), box-shadow var(--transition-normal);
}

.section-title {
    font-size: 1.25rem;
    font-weight: 600;
    margin-bottom: 1.5rem;
    color: var(--text-primary);
    border-bottom: 2px solid var(--accent);
    padding-bottom: 0.5rem;
    display: inline-block;
}

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

/* ==========================================================================
   FORMS & INPUTS
   ========================================================================== */
.form-group {
    margin-bottom: 1.5rem;
}

.form-group label {
    display: block;
    font-size: 0.9rem;
    font-weight: 600;
    margin-bottom: 0.5rem;
    color: var(--text-secondary);
}

select, input[type="text"], textarea {
    width: 100%;
    padding: 0.75rem 1rem;
    background-color: var(--input-bg);
    border: 1px solid var(--input-border);
    color: var(--text-primary);
    border-radius: 8px;
    font-family: var(--font-primary);
    font-size: 0.95rem;
    outline: none;
    transition: border-color var(--transition-fast), box-shadow var(--transition-fast);
}

select:focus, input[type="text"]:focus, textarea:focus {
    border-color: var(--input-focus);
    box-shadow: 0 0 0 3px var(--accent-bg);
}

select:disabled {
    opacity: 0.5;
    cursor: not-allowed;
}

.help-text {
    display: block;
    font-size: 0.75rem;
    color: var(--text-muted);
    margin-top: 0.25rem;
}

/* File Uploaders */
.file-uploader {
    position: relative;
    border: 2px dashed var(--input-border);
    border-radius: 8px;
    background-color: var(--input-bg);
    text-align: center;
    cursor: pointer;
    transition: border-color var(--transition-fast), background-color var(--transition-fast);
    overflow: hidden;
}

.file-uploader:hover, .file-uploader.dragover {
    border-color: var(--accent);
    background-color: var(--accent-bg);
}

.file-uploader input[type="file"] {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    opacity: 0;
    cursor: pointer;
}

.upload-prompt {
    padding: 1.5rem 1rem;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 0.5rem;
    color: var(--text-secondary);
    pointer-events: none;
}

.upload-prompt svg {
    color: var(--text-muted);
    transition: color var(--transition-fast);
}

.file-uploader:hover .upload-prompt svg {
    color: var(--accent);
}

.file-name {
    font-size: 0.8rem;
    font-weight: 500;
    color: var(--accent);
    text-overflow: ellipsis;
    white-space: nowrap;
    overflow: hidden;
    max-width: 90%;
    display: inline-block;
}

/* Buttons */
.submit-btn {
    width: 100%;
    padding: 1rem;
    background-color: var(--accent);
    color: var(--text-inverse);
    border: none;
    border-radius: 8px;
    font-family: var(--font-primary);
    font-size: 1rem;
    font-weight: 600;
    cursor: pointer;
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 0.75rem;
    box-shadow: 0 4px 12px rgba(59, 130, 246, 0.25);
    transition: background-color var(--transition-fast), transform var(--transition-fast), box-shadow var(--transition-fast);
}

.submit-btn:hover {
    background-color: var(--accent-hover);
    transform: translateY(-1px);
    box-shadow: 0 6px 16px rgba(59, 130, 246, 0.35);
}

.submit-btn:active {
    transform: translateY(0);
}

/* Theme Toggle Button */
.theme-toggle-btn {
    background: none;
    border: 1px solid var(--border-card);
    padding: 0.6rem;
    border-radius: 8px;
    color: var(--text-secondary);
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: background-color var(--transition-fast), color var(--transition-fast);
}

.theme-toggle-btn:hover {
    background-color: var(--accent-bg);
    color: var(--accent);
}

html[data-theme="dark"] .sun-icon { display: block; }
html[data-theme="dark"] .moon-icon { display: none; }
html[data-theme="light"] .sun-icon { display: none; }
html[data-theme="light"] .moon-icon { display: block; }

/* ==========================================================================
   RESULTS AREA / DASHBOARD
   ========================================================================== */
.results-area {
    width: 100%;
}

.state-card {
    padding: 5rem 2rem;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 1.5rem;
    color: var(--text-secondary);
}

.state-card h2 {
    font-size: 1.75rem;
    font-weight: 700;
    color: var(--text-primary);
}

.state-card p {
    max-width: 600px;
    color: var(--text-muted);
}

.icon-pulse {
    animation: pulse 2.5s infinite ease-in-out;
    color: var(--accent);
}

@keyframes pulse {
    0% { transform: scale(1); opacity: 0.6; }
    50% { transform: scale(1.08); opacity: 1; }
    100% { transform: scale(1); opacity: 0.6; }
}

/* Dashboard Header */
.dashboard-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 1.5rem;
    gap: 1rem;
}

@media (max-width: 640px) {
    .dashboard-header {
        flex-direction: column;
        align-items: flex-start;
    }
    .download-action {
        width: 100%;
    }
}

.meta-info h2 {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--text-primary);
}

.meta-sub {
    font-size: 0.95rem;
    color: var(--text-secondary);
    margin-top: 0.25rem;
}

.download-btn {
    padding: 0.75rem 1.25rem;
    background-color: var(--color-success);
    color: white;
    border: none;
    border-radius: 8px;
    font-family: var(--font-primary);
    font-size: 0.95rem;
    font-weight: 600;
    cursor: pointer;
    display: flex;
    align-items: center;
    gap: 0.5rem;
    box-shadow: 0 4px 12px rgba(16, 185, 129, 0.2);
    transition: background-color var(--transition-fast), transform var(--transition-fast);
}

.download-btn:hover {
    background-color: #059669;
    transform: translateY(-1px);
}

/* Notification Banner */
.notification-banner {
    padding: 0.75rem 1.25rem;
    border-radius: 8px;
    margin-bottom: 1.5rem;
    font-size: 0.9rem;
    font-weight: 500;
    border-left: 4px solid;
    animation: slideDown 0.4s ease-out;
}

.notification-banner.success {
    background-color: var(--color-success-bg);
    color: var(--color-lvl1-text);
    border-left-color: var(--color-success);
}

.notification-banner.error {
    background-color: var(--color-danger-bg);
    color: var(--color-lvl5-text);
    border-left-color: var(--color-danger);
}

@keyframes slideDown {
    from { transform: translateY(-10px); opacity: 0; }
    to { transform: translateY(0); opacity: 1; }
}

/* Metrics Grid */
.metrics-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 1.5rem;
    margin-bottom: 1.5rem;
}

@media (max-width: 640px) {
    .metrics-grid {
        grid-template-columns: 1fr;
    }
}

.metric-card {
    padding: 1.5rem;
}

.metric-card h3 {
    font-size: 1rem;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 1rem;
    padding-bottom: 0.5rem;
    border-bottom: 1px solid var(--border-divider);
}

.metric-row {
    display: flex;
    justify-content: space-between;
    margin-bottom: 0.5rem;
    font-size: 0.9rem;
}

.metric-row .lbl {
    color: var(--text-secondary);
}

.metric-row .val {
    font-weight: 600;
}

.metric-footer {
    display: flex;
    justify-content: space-between;
    margin-top: 1rem;
    padding-top: 0.75rem;
    border-top: 1px dashed var(--border-divider);
    font-weight: 700;
    font-size: 1rem;
}

.metric-footer.clean {
    color: var(--color-success);
    background-color: var(--color-success-bg);
    padding: 0.5rem 0.75rem;
    border-radius: 6px;
    border: none;
}

.metric-footer.warning {
    color: var(--color-lvl5-text);
    background-color: var(--color-lvl5-bg);
    padding: 0.5rem 0.75rem;
    border-radius: 6px;
    border: none;
}

/* Levels Summary */
.levels-card {
    padding: 1rem 1.5rem;
    margin-bottom: 1.5rem;
}

.levels-card h3 {
    font-size: 1rem;
    font-weight: 600;
    margin-bottom: 1rem;
}

.levels-container {
    display: grid;
    grid-template-columns: repeat(5, 1fr);
    gap: 0.75rem;
}

@media (max-width: 640px) {
    .levels-container {
        grid-template-columns: 1fr;
    }
}

.level-box {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    padding: 0.5rem 0.25rem;
    border-radius: 10px;
    text-align: center;
}

.level-box .lvl-num {
    font-size: 1.25rem;
    font-weight: 800;
}

.level-box .lvl-title {
    font-size: 0.7rem;
    font-weight: 500;
    margin: 0.15rem 0;
}

.level-box .lvl-count {
    font-size: 0.95rem;
    font-weight: 700;
}

/* Colorear cajas por nivel */
.level-box.lvl-1 { background-color: var(--color-lvl1-bg); color: var(--color-lvl1-text); }
.level-box.lvl-2 { background-color: var(--color-lvl2-bg); color: var(--color-lvl2-text); }
.level-box.lvl-3 { background-color: var(--color-lvl3-bg); color: var(--color-lvl3-text); }
.level-box.lvl-4 { background-color: var(--color-lvl4-bg); color: var(--color-lvl4-text); }
.level-box.lvl-5 { background-color: var(--color-lvl5-bg); color: var(--color-lvl5-text); }

/* ==========================================================================
   TABS AND TABLES
   ========================================================================== */
.tabs-card {
    padding: 1.5rem;
}

.tabs-header {
    display: flex;
    gap: 0.5rem;
    border-bottom: 2px solid var(--border-divider);
    margin-bottom: 1.5rem;
}

.tab-btn {
    background: none;
    border: none;
    padding: 0.75rem 1.25rem;
    font-family: var(--font-primary);
    font-size: 0.95rem;
    font-weight: 600;
    color: var(--text-muted);
    cursor: pointer;
    position: relative;
    top: 2px;
    transition: color var(--transition-fast);
}

.tab-btn:hover {
    color: var(--text-primary);
}

.tab-btn.active {
    color: var(--accent);
    border-bottom: 2px solid var(--accent);
}

.tab-pane {
    display: none;
}

.tab-pane.active {
    display: block;
}

.table-actions {
    margin-bottom: 1rem;
}

.search-input {
    max-width: 300px;
    padding: 0.5rem 0.75rem;
    font-size: 0.85rem;
}

/* Tables */
.table-container {
    width: 100%;
    overflow-x: auto;
    max-height: 900px; /* doubled height */
    overflow-y: auto;
    border-radius: 8px;
    border: 1px solid var(--border-divider);
}

.table-container.mini {
    max-height: 450px; /* doubled height */
    margin-bottom: 1.5rem;
}

.data-table {
    width: 100%;
    border-collapse: collapse;
    font-size: 0.85rem;
    text-align: left;
}

.data-table th {
    background-color: var(--table-header-bg);
    color: white;
    font-weight: 600;
    padding: 0.75rem 1rem;
    position: sticky;
    top: 0;
    z-index: 5;
    box-shadow: inset 0 -1px 0 var(--border-divider);
}

.data-table td {
    padding: 0.75rem 1rem;
    border-bottom: 1px solid var(--border-divider);
    color: var(--text-primary);
    vertical-align: middle;
}

.data-table tbody tr:hover {
    filter: brightness(0.95);
    background-color: var(--table-row-hover);
}

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

/* Filas coloreadas por nivel */
.data-table tr.row-lvl1 td { background-color: var(--color-lvl1-bg); color: var(--color-lvl1-text); }
.data-table tr.row-lvl2 td { background-color: var(--color-lvl2-bg); color: var(--color-lvl2-text); }
.data-table tr.row-lvl3 td { background-color: var(--color-lvl3-bg); color: var(--color-lvl3-text); }
.data-table tr.row-lvl4 td { background-color: var(--color-lvl4-bg); color: var(--color-lvl4-text); }
.data-table tr.row-lvl5 td { background-color: var(--color-lvl5-bg); color: var(--color-lvl5-text); }

/* Badges y Textos en Columnas */
.origin-badge {
    padding: 0.25rem 0.5rem;
    border-radius: 4px;
    font-size: 0.75rem;
    font-weight: 700;
    display: inline-block;
}

.origin-badge.banco { background-color: rgba(59, 130, 246, 0.2); color: var(--accent); border: 1px solid var(--accent); }
.origin-badge.libros { background-color: rgba(16, 185, 129, 0.2); color: var(--color-success); border: 1px solid var(--color-success); }

.state-badge {
    padding: 0.25rem 0.5rem;
    border-radius: 4px;
    font-size: 0.75rem;
    font-weight: 600;
    display: inline-block;
}

/* Pestaña de Diferencias Detalladas */
.diferencias-split-container {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 1.5rem;
}

@media (max-width: 768px) {
    .diferencias-split-container {
        grid-template-columns: 1fr;
    }
}

.diff-column h4 {
    font-size: 1rem;
    font-weight: 700;
    margin-bottom: 1rem;
    color: var(--text-primary);
    border-left: 4px solid var(--accent);
    padding-left: 0.5rem;
}

.sub-column-title {
    font-size: 0.85rem;
    font-weight: 600;
    margin-bottom: 0.5rem;
    padding: 0.25rem 0.5rem;
    border-radius: 4px;
    display: inline-block;
}

.sub-column-title.ingresos {
    background-color: var(--color-success-bg);
    color: var(--color-lvl1-text);
}

.sub-column-title.egresos {
    background-color: var(--color-danger-bg);
    color: var(--color-lvl5-text);
}

/* ==========================================================================
   SPINNER & LOADING EFFECTS
   ========================================================================== */
.spinner {
    width: 20px;
    height: 20px;
    border: 3px solid rgba(255, 255, 255, 0.3);
    border-radius: 50%;
    border-top-color: white;
    animation: spin 1s linear infinite;
    display: inline-block;
}

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

.hidden { display: none !important; }

/* ==========================================================================
   NUEVOS ESTILOS Y MEJORAS VISUALES
   ========================================================================== */

/* Tema Oscuro - Contraste de Subtítulos de Diferencias */
html[data-theme="dark"] .sub-column-title.ingresos {
    background-color: var(--color-lvl1-bg);
    color: var(--color-lvl1-text);
}
html[data-theme="dark"] .sub-column-title.egresos {
    background-color: var(--color-lvl5-bg);
    color: var(--color-lvl5-text);
}

/* Pies de Tabla Adhesivos (Sticky Footers) */
.data-table tfoot.sticky-footer {
    position: sticky;
    bottom: 0;
    background-color: var(--bg-card);
    z-index: 4;
    box-shadow: 0 -2px 0 var(--border-divider);
}
.data-table tfoot.sticky-footer td {
    border-bottom: none;
    border-top: 1px solid var(--border-divider);
    padding: 0.75rem 1rem;
    font-weight: 700;
    color: var(--text-primary);
}

/* Colapso del Panel Lateral (Transiciones y Estados) */
.grid-container {
    display: grid;
    grid-template-columns: 380px 1fr;
    gap: 2rem;
    align-items: start;
    transition: grid-template-columns 0.35s cubic-bezier(0.4, 0, 0.2, 1), gap 0.35s cubic-bezier(0.4, 0, 0.2, 1);
}
.form-card {
    transition: all 0.35s cubic-bezier(0.4, 0, 0.2, 1);
    opacity: 1;
    visibility: visible;
}
.grid-container.sidebar-collapsed {
    grid-template-columns: 0px 1fr;
    gap: 0;
}
.grid-container.sidebar-collapsed .form-card {
    opacity: 0;
    visibility: hidden;
    padding: 0;
    border: none;
    width: 0;
    height: 0;
    margin: 0;
    overflow: hidden;
    pointer-events: none;
}

/* Botón para Retraer Sidebar */
.sidebar-toggle-bar {
    display: flex;
    justify-content: flex-start;
    margin-bottom: 1.5rem;
}
.sidebar-toggle-btn {
    background-color: var(--bg-card);
    border: 1px solid var(--border-card);
    color: var(--text-primary);
    padding: 0.5rem 1rem;
    border-radius: 8px;
    font-family: var(--font-primary);
    font-size: 0.85rem;
    font-weight: 600;
    cursor: pointer;
    display: flex;
    align-items: center;
    gap: 0.5rem;
    transition: background-color var(--transition-fast), color var(--transition-fast);
}
.sidebar-toggle-btn:hover {
    background-color: var(--accent-bg);
    color: var(--accent);
}
.sidebar-toggle-btn .toggle-icon {
    transition: transform 0.35s ease;
}
.sidebar-collapsed .sidebar-toggle-btn .toggle-icon {
    transform: rotate(180deg);
}

/* Pantalla Completa */
.tabs-card {
    position: relative;
}
.fullscreen-btn {
    position: absolute;
    top: 1.25rem;
    right: 1.5rem;
    background: none;
    border: 1px solid var(--border-card);
    padding: 0.5rem;
    border-radius: 8px;
    color: var(--text-secondary);
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: background-color var(--transition-fast), color var(--transition-fast);
    z-index: 10;
}
.fullscreen-btn:hover {
    background-color: var(--accent-bg);
    color: var(--accent);
}

/* Estado de Pantalla Completa Activa */
.tabs-card.fullscreen-active {
    position: fixed;
    top: 0;
    left: 0;
    width: 100vw;
    height: 100vh;
    z-index: 9999;
    background-color: var(--bg-page);
    padding: 2rem;
    border-radius: 0;
    overflow-y: auto;
}
.tabs-card.fullscreen-active .table-container {
    max-height: calc(100vh - 200px);
}
.tabs-card.fullscreen-active .table-container.mini {
    max-height: calc(50vh - 120px);
}

/* Encabezado del Sitio - Contenedor Metadata General */
.header-meta-container {
    background: var(--accent-bg);
    border: 1px solid var(--border-card);
    border-radius: 12px;
    padding: 0.4rem 1rem;
    display: flex;
    align-items: center;
    gap: 1.5rem;
    font-size: 0.85rem;
    backdrop-filter: blur(8px);
    -webkit-backdrop-filter: blur(8px);
    animation: slideDown 0.4s ease-out;
}
.meta-info-header {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    color: var(--text-secondary);
}
.meta-empresa-header {
    font-weight: 700;
    color: var(--text-primary);
}
.meta-divider {
    color: var(--border-divider);
}
.download-btn-header {
    padding: 0.35rem 0.75rem;
    background-color: var(--color-success);
    color: white;
    border: none;
    border-radius: 6px;
    font-family: var(--font-primary);
    font-size: 0.8rem;
    font-weight: 600;
    cursor: pointer;
    display: flex;
    align-items: center;
    gap: 0.35rem;
    transition: background-color var(--transition-fast);
}
.download-btn-header:hover {
    background-color: #059669;
}
.logo-img {
    height: 35px;
    width: auto;
    object-fit: contain;
}

/* Columnas Ordenables y Estilo */
.data-table th.sortable {
    cursor: pointer;
    position: relative;
    padding-right: 1.5rem;
}
.data-table th.sortable:hover {
    background-color: var(--accent-hover);
}
.sort-icon {
    font-size: 0.75rem;
    margin-left: 0.25rem;
    opacity: 0.7;
}

/* Ajustes Visuales para Buscadores Individuales de Diferencias */
.diff-section-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 0.5rem;
    gap: 1rem;
}
.diff-section-header .search-wrapper {
    display: flex;
    align-items: center;
    gap: 0.5rem;
}
.diff-section-header .search-input.mini {
    max-width: 160px;
    padding: 0.25rem 0.5rem;
    font-size: 0.8rem;
}

/* Tooltips para ayuda del filtro */
.tooltip-container {
    position: relative;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    cursor: help;
    color: var(--text-secondary);
    transition: color var(--transition-fast), transform var(--transition-fast);
}

.tooltip-container:hover {
    color: var(--accent);
    transform: scale(1.1);
}

.search-help-icon {
    display: block;
    pointer-events: none;
}

/* Tooltip text */
.tooltip-container::after {
    content: attr(data-tooltip);
    position: absolute;
    bottom: 130%;
    right: 0;
    width: 280px;
    background-color: var(--bg-card);
    border: 1px solid var(--border-card);
    color: var(--text-primary);
    text-align: left;
    padding: 0.6rem 0.8rem;
    border-radius: 6px;
    font-size: 0.75rem;
    line-height: 1.4;
    font-weight: 400;
    z-index: 1000;
    opacity: 0;
    visibility: hidden;
    transition: opacity var(--transition-fast) ease, transform var(--transition-fast) ease, visibility var(--transition-fast);
    box-shadow: var(--shadow-card);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    pointer-events: none;
    transform: translateY(4px);
}

/* Flechita del tooltip */
.tooltip-container::before {
    content: "";
    position: absolute;
    bottom: 110%;
    right: 8px;
    border-width: 6px;
    border-style: solid;
    border-color: var(--border-card) transparent transparent transparent;
    z-index: 1000;
    opacity: 0;
    visibility: hidden;
    transition: opacity var(--transition-fast) ease, transform var(--transition-fast) ease, visibility var(--transition-fast);
    pointer-events: none;
    transform: translateY(4px);
}

/* Mostrar tooltip al pasar el cursor */
.tooltip-container:hover::after,
.tooltip-container:hover::before {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
}

/* ==========================================================================
   PASSWORD MODAL DIALOG
   ========================================================================== */
.modal-backdrop {
    position: fixed;
    top: 0;
    left: 0;
    width: 100vw;
    height: 100vh;
    background-color: rgba(15, 23, 42, 0.65);
    backdrop-filter: blur(8px);
    -webkit-backdrop-filter: blur(8px);
    z-index: 99999;
    display: flex;
    justify-content: center;
    align-items: center;
    padding: 1.5rem;
    transition: opacity var(--transition-normal);
}

.modal-backdrop.hidden {
    opacity: 0;
    pointer-events: none;
    display: none !important;
}

.modal-card {
    width: 100%;
    max-width: 480px;
    background: var(--bg-card);
    border: 1px solid var(--border-card);
    border-radius: 16px;
    box-shadow: var(--shadow-card);
    display: flex;
    flex-direction: column;
    overflow: hidden;
    transform: scale(0.95);
    transition: transform var(--transition-normal);
    animation: fadeIn 0.3s cubic-bezier(0.34, 1.56, 0.64, 1);
}

.modal-backdrop:not(.hidden) .modal-card {
    transform: scale(1);
}

.modal-header {
    padding: 1.5rem;
    border-bottom: 1px solid var(--border-divider);
    display: flex;
    align-items: center;
    gap: 0.75rem;
}

.modal-header .lock-icon {
    color: var(--accent);
    flex-shrink: 0;
}

.modal-header h3 {
    margin: 0;
    font-size: 1.25rem;
    font-weight: 600;
}

.modal-body {
    padding: 1.5rem;
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

.modal-body p {
    font-size: 0.9rem;
    color: var(--text-secondary);
    line-height: 1.5;
}

.password-input-wrapper {
    position: relative;
    display: flex;
    align-items: center;
}

.password-input-wrapper input {
    width: 100%;
    padding: 0.75rem 2.5rem 0.75rem 1rem;
    background-color: var(--input-bg);
    border: 1px solid var(--input-border);
    border-radius: 8px;
    color: var(--text-primary);
    font-family: var(--font-primary);
    font-size: 0.95rem;
    transition: border-color var(--transition-fast), box-shadow var(--transition-fast);
}

.password-input-wrapper input:focus {
    outline: none;
    border-color: var(--input-focus);
    box-shadow: 0 0 0 3px rgba(59, 130, 246, 0.25);
}

.toggle-password-btn {
    position: absolute;
    right: 0.75rem;
    background: none;
    border: none;
    color: var(--text-muted);
    cursor: pointer;
    padding: 0.25rem;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: color var(--transition-fast);
}

.toggle-password-btn:hover {
    color: var(--text-primary);
}

.password-error {
    font-size: 0.85rem;
    color: var(--color-danger);
    font-weight: 500;
    margin-top: 0.25rem;
    animation: shake 0.35s ease-in-out;
}

.modal-footer {
    padding: 1.25rem 1.5rem;
    border-top: 1px solid var(--border-divider);
    display: flex;
    justify-content: flex-end;
    gap: 0.75rem;
}

/* Modal Button Colors */
.btn-secondary {
    padding: 0.6rem 1.25rem;
    background-color: transparent;
    color: var(--text-secondary);
    border: 1px solid var(--input-border);
    border-radius: 8px;
    font-family: var(--font-primary);
    font-weight: 500;
    cursor: pointer;
    transition: background-color var(--transition-fast), color var(--transition-fast);
}

.btn-secondary:hover {
    background-color: var(--table-row-hover);
    color: var(--text-primary);
}

.btn-accent {
    padding: 0.6rem 1.25rem;
    background-color: var(--accent);
    color: white;
    border: none;
    border-radius: 8px;
    font-family: var(--font-primary);
    font-weight: 600;
    cursor: pointer;
    transition: background-color var(--transition-fast), transform var(--transition-fast);
}

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

.btn-accent:active {
    transform: scale(0.98);
}

/* Animations */
@keyframes shake {
    0%, 100% { transform: translateX(0); }
    20%, 60% { transform: translateX(-6px); }
    40%, 80% { transform: translateX(6px); }
}

@keyframes fadeIn {
    from { opacity: 0; transform: translateY(-16px) scale(0.95); }
    to { opacity: 1; transform: translateY(0) scale(1); }
}

/* ==========================================================================
   SUPPORT CHAT & FLOATING BUTTON (FAB)
   ========================================================================== */
.support-container {
    position: fixed;
    bottom: 24px;
    right: 24px;
    z-index: 999;
    display: flex;
    flex-direction: column;
    align-items: flex-end;
    gap: 16px;
    font-family: var(--font-primary);
}

.support-fab {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 0.75rem 1.25rem;
    background-color: var(--color-danger);
    color: white;
    border: none;
    border-radius: 50px;
    box-shadow: 0 10px 25px -5px rgba(239, 68, 68, 0.4);
    cursor: pointer;
    transition: all var(--transition-normal);
    font-family: var(--font-primary);
    font-weight: 600;
    font-size: 14px;
}

.support-fab:hover {
    background-color: #dc2626;
    transform: translateY(-3px) scale(1.03);
    box-shadow: 0 12px 28px -4px rgba(239, 68, 68, 0.5);
}

.support-fab:active {
    transform: translateY(-1px) scale(0.98);
}

.support-fab .chat-icon {
    flex-shrink: 0;
    transition: transform var(--transition-fast);
}

.support-fab:hover .chat-icon {
    transform: rotate(-8deg) scale(1.1);
}

.support-chat-card {
    width: 360px;
    max-width: calc(100vw - 48px);
    border-radius: 16px;
    border: 1px solid var(--border-card);
    box-shadow: var(--shadow-card);
    overflow: hidden;
    animation: fadeIn var(--transition-normal);
}

.support-chat-header {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 1rem 1.25rem;
    background-color: var(--color-danger);
    color: white;
}

.support-chat-header h4 {
    margin: 0;
    font-size: 16px;
    font-weight: 600;
    flex-grow: 1;
}

.close-support-btn {
    background: none;
    border: none;
    color: white;
    font-size: 24px;
    line-height: 1;
    cursor: pointer;
    opacity: 0.8;
    transition: opacity var(--transition-fast);
    padding: 0;
}

.close-support-btn:hover {
    opacity: 1;
}

.support-chat-body {
    padding: 1.25rem;
    background-color: var(--bg-card);
}

.chat-intro-text {
    font-size: 13.5px;
    color: var(--text-secondary);
    margin-top: 0;
    margin-bottom: 1rem;
    line-height: 1.4;
}

.chat-options {
    display: flex;
    flex-direction: column;
    gap: 8px;
    margin-top: 6px;
    margin-bottom: 12px;
}

.chat-option-label {
    display: flex;
    align-items: flex-start;
    gap: 8px;
    padding: 8px 10px;
    background-color: var(--input-bg);
    border: 1px solid var(--input-border);
    border-radius: 8px;
    cursor: pointer;
    transition: all var(--transition-fast);
    font-size: 13px;
    color: var(--text-primary);
}

.chat-option-label:hover {
    border-color: var(--color-danger);
    background-color: rgba(239, 68, 68, 0.05);
}

.chat-option-label input[type="radio"] {
    margin-top: 3px;
    accent-color: var(--color-danger);
    cursor: pointer;
}

textarea#chat-note {
    width: 100%;
    background-color: var(--input-bg);
    border: 1px solid var(--input-border);
    border-radius: 8px;
    padding: 10px;
    color: var(--text-primary);
    font-family: var(--font-primary);
    font-size: 13px;
    transition: border-color var(--transition-fast);
}

textarea#chat-note:focus {
    outline: none;
    border-color: var(--color-danger);
}

.send-support-btn {
    width: 100%;
    padding: 0.75rem;
    background-color: var(--color-danger);
    color: white;
    border: none;
    border-radius: 8px;
    font-family: var(--font-primary);
    font-weight: 600;
    font-size: 14px;
    cursor: pointer;
    transition: all var(--transition-fast);
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    margin-top: 1rem;
}

.send-support-btn:hover:not(:disabled) {
    background-color: #dc2626;
}

.send-support-btn:disabled {
    opacity: 0.6;
    cursor: not-allowed;
}

.support-success {
    display: flex;
    flex-direction: column;
    align-items: center;
    text-align: center;
    gap: 12px;
    padding: 1.5rem 0;
    color: var(--color-success);
    font-size: 14.5px;
    font-weight: 500;
}

.support-success .success-icon {
    width: 48px;
    height: 48px;
    stroke-width: 2.5;
    background-color: var(--color-success-bg);
    padding: 10px;
    border-radius: 50%;
}

/* ==========================================================================
   HEADER ACTIONS & GUIDE BUTTON / MODAL
   ========================================================================== */
.header-actions {
    display: flex;
    align-items: center;
    gap: 0.75rem;
}

.guide-btn {
    background-color: var(--accent-bg);
    border: 1px solid var(--accent);
    padding: 0.5rem 0.9rem;
    border-radius: 8px;
    color: var(--accent);
    font-family: var(--font-primary);
    font-size: 0.85rem;
    font-weight: 600;
    cursor: pointer;
    display: flex;
    align-items: center;
    gap: 0.4rem;
    transition: background-color var(--transition-fast), color var(--transition-fast), border-color var(--transition-fast), transform var(--transition-fast);
}

.guide-btn:hover {
    background-color: var(--accent);
    color: white;
    transform: translateY(-1px);
}

.guide-btn:active {
    transform: translateY(0);
}

.guide-icon {
    flex-shrink: 0;
}

.modal-card.video-modal-card {
    max-width: 800px;
}

.modal-body.video-modal-body {
    padding: 1.25rem;
    gap: 0;
}

.video-container {
    position: relative;
    width: 100%;
    aspect-ratio: 16 / 9;
    border-radius: 12px;
    overflow: hidden;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.25);
    background-color: #000;
}

.video-container iframe {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    border: none;
}

.close-modal-btn {
    background: none;
    border: none;
    color: var(--text-muted);
    font-size: 24px;
    line-height: 1;
    cursor: pointer;
    transition: color var(--transition-fast);
    padding: 0;
    display: flex;
    align-items: center;
    justify-content: center;
}

.close-modal-btn:hover {
    color: var(--text-primary);
}