/**
 * ============================================================================
 * CLEAN THEME - Suite Education
 * ============================================================================
 * Tema moderno y limpio para reemplazar el neumorfismo.
 *
 * Principios de diseño:
 * - Fondos blancos/grises claros
 * - Sombras sutiles unidireccionales
 * - Bordes definidos para delimitar elementos
 * - Colores vibrantes para acciones y estados
 * - Alto contraste para accesibilidad (WCAG 2.1 AA)
 *
 * Fecha: 2026-01-23
 * ============================================================================
 */

/* ============================================================================
   1. VARIABLES CSS - SISTEMA DE DISEÑO LIMPIO
   ============================================================================ */

:root {
    /* === FONDOS === */
    --clean-bg-primary: #ffffff;
    --clean-bg-secondary: #f9fafb;
    --clean-bg-tertiary: #f3f4f6;
    --clean-bg-elevated: #ffffff;
    --clean-bg-hover: #f9fafb;
    --clean-bg-active: #f3f4f6;

    /* === BORDES === */
    --clean-border-light: #e5e7eb;
    --clean-border-default: #d1d5db;
    --clean-border-strong: #9ca3af;
    --clean-border-focus: #1d4ed8;

    /* === SOMBRAS (Reemplazo de neumorfismo) === */
    --clean-shadow-xs: 0 1px 2px rgba(0, 0, 0, 0.05);
    --clean-shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.1), 0 1px 2px rgba(0, 0, 0, 0.06);
    --clean-shadow-md: 0 4px 6px rgba(0, 0, 0, 0.1), 0 2px 4px rgba(0, 0, 0, 0.06);
    --clean-shadow-lg: 0 10px 15px rgba(0, 0, 0, 0.1), 0 4px 6px rgba(0, 0, 0, 0.05);
    --clean-shadow-xl: 0 20px 25px rgba(0, 0, 0, 0.1), 0 10px 10px rgba(0, 0, 0, 0.04);
    --clean-shadow-inner: inset 0 2px 4px rgba(0, 0, 0, 0.06);

    /* === COLORES PRIMARIOS === */
    --clean-primary: #1d4ed8;
    --clean-primary-hover: #1e40af;
    --clean-primary-active: #1e3a8a;
    --clean-primary-light: #dbeafe;
    --clean-primary-lighter: #eff6ff;

    /* === COLORES SEMÁNTICOS === */
    --clean-success: #16a34a;
    --clean-success-hover: #15803d;
    --clean-success-light: #dcfce7;
    --clean-success-lighter: #f0fdf4;

    --clean-danger: #dc2626;
    --clean-danger-hover: #b91c1c;
    --clean-danger-light: #fee2e2;
    --clean-danger-lighter: #fef2f2;

    --clean-warning: #d97706;
    --clean-warning-hover: #b45309;
    --clean-warning-light: #fef3c7;
    --clean-warning-lighter: #fffbeb;

    --clean-info: #0891b2;
    --clean-info-hover: #0e7490;
    --clean-info-light: #cffafe;
    --clean-info-lighter: #ecfeff;

    /* === TEXTO === */
    --clean-text-primary: #111827;
    --clean-text-secondary: #4b5563;
    --clean-text-muted: #6b7280;
    --clean-text-placeholder: #9ca3af;
    --clean-text-on-primary: #ffffff;
    --clean-text-on-dark: #ffffff;

    /* === ESPACIADO (heredado del DS) === */
    --clean-space-1: 0.25rem;
    --clean-space-2: 0.5rem;
    --clean-space-3: 0.75rem;
    --clean-space-4: 1rem;
    --clean-space-5: 1.25rem;
    --clean-space-6: 1.5rem;
    --clean-space-8: 2rem;

    /* === BORDES REDONDEADOS === */
    --clean-radius-sm: 4px;
    --clean-radius-md: 6px;
    --clean-radius-lg: 8px;
    --clean-radius-xl: 12px;
    --clean-radius-full: 9999px;

    /* === TRANSICIONES === */
    --clean-transition-fast: 150ms ease;
    --clean-transition-normal: 200ms ease;
    --clean-transition-slow: 300ms ease;

    /* === FOCUS RING === */
    --clean-focus-ring: 0 0 0 3px var(--clean-primary-light);
    --clean-focus-ring-success: 0 0 0 3px var(--clean-success-light);
    --clean-focus-ring-danger: 0 0 0 3px var(--clean-danger-light);
}

/* ============================================================================
   2. CARDS - COMPONENTE BASE
   ============================================================================ */

.clean-card {
    background: var(--clean-bg-elevated);
    border: 1px solid var(--clean-border-light);
    border-radius: var(--clean-radius-lg);
    padding: var(--clean-space-5);
    box-shadow: var(--clean-shadow-sm);
    transition: box-shadow var(--clean-transition-normal),
                transform var(--clean-transition-normal);
}

.clean-card:hover {
    box-shadow: var(--clean-shadow-md);
}

.clean-card-interactive:hover {
    box-shadow: var(--clean-shadow-md);
    transform: translateY(-2px);
}

.clean-card-flat {
    background: var(--clean-bg-tertiary);
    border: 1px solid var(--clean-border-light);
    border-radius: var(--clean-radius-lg);
    padding: var(--clean-space-5);
}

.clean-card-bordered {
    background: var(--clean-bg-elevated);
    border: 1px solid var(--clean-border-default);
    border-radius: var(--clean-radius-lg);
    padding: var(--clean-space-5);
}

/* Card Header */
.clean-card-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding-bottom: var(--clean-space-4);
    margin-bottom: var(--clean-space-4);
    border-bottom: 1px solid var(--clean-border-light);
}

.clean-card-title {
    font-size: 1rem;
    font-weight: 600;
    color: var(--clean-text-primary);
    margin: 0;
}

/* Card Body */
.clean-card-body {
    color: var(--clean-text-secondary);
}

/* Card Footer */
.clean-card-footer {
    display: flex;
    align-items: center;
    justify-content: flex-end;
    gap: var(--clean-space-2);
    padding-top: var(--clean-space-4);
    margin-top: var(--clean-space-4);
    border-top: 1px solid var(--clean-border-light);
}

/* ============================================================================
   3. BOTONES - COMPONENTE BASE
   ============================================================================ */

.clean-btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: var(--clean-space-2);
    padding: 0.625rem 1rem;
    font-family: inherit;
    font-size: 0.875rem;
    font-weight: 500;
    line-height: 1;
    text-decoration: none;
    border-radius: var(--clean-radius-md);
    cursor: pointer;
    transition: all var(--clean-transition-fast);
    border: 1px solid transparent;
}

.clean-btn:focus {
    outline: none;
}

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

/* Default Button */
.clean-btn-default,
.clean-btn {
    background: var(--clean-bg-elevated);
    border-color: var(--clean-border-default);
    color: var(--clean-text-primary);
    box-shadow: var(--clean-shadow-xs);
}

.clean-btn-default:hover,
.clean-btn:not(.clean-btn-primary):not(.clean-btn-success):not(.clean-btn-danger):not(.clean-btn-warning):not(.clean-btn-ghost):hover {
    background: var(--clean-bg-hover);
    border-color: var(--clean-border-strong);
}

.clean-btn-default:active,
.clean-btn:not(.clean-btn-primary):not(.clean-btn-success):not(.clean-btn-danger):not(.clean-btn-warning):not(.clean-btn-ghost):active {
    transform: translateY(1px);
    box-shadow: none;
}

.clean-btn-default:focus,
.clean-btn:focus {
    box-shadow: var(--clean-focus-ring);
}

/* Primary Button */
.clean-btn-primary {
    background: var(--clean-primary);
    border-color: var(--clean-primary);
    color: var(--clean-text-on-primary);
}

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

.clean-btn-primary:active {
    background: var(--clean-primary-active);
    transform: translateY(1px);
}

.clean-btn-primary:focus {
    box-shadow: var(--clean-focus-ring);
}

/* Success Button */
.clean-btn-success {
    background: var(--clean-success);
    border-color: var(--clean-success);
    color: var(--clean-text-on-primary);
}

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

.clean-btn-success:active {
    transform: translateY(1px);
}

.clean-btn-success:focus {
    box-shadow: var(--clean-focus-ring-success);
}

/* Danger Button */
.clean-btn-danger {
    background: var(--clean-danger);
    border-color: var(--clean-danger);
    color: var(--clean-text-on-primary);
}

.clean-btn-danger:hover {
    background: var(--clean-danger-hover);
    border-color: var(--clean-danger-hover);
}

.clean-btn-danger:active {
    transform: translateY(1px);
}

.clean-btn-danger:focus {
    box-shadow: var(--clean-focus-ring-danger);
}

/* Warning Button */
.clean-btn-warning {
    background: var(--clean-warning);
    border-color: var(--clean-warning);
    color: var(--clean-text-on-primary);
}

.clean-btn-warning:hover {
    background: var(--clean-warning-hover);
    border-color: var(--clean-warning-hover);
}

.clean-btn-warning:active {
    transform: translateY(1px);
}

/* Ghost Button */
.clean-btn-ghost {
    background: transparent;
    border-color: transparent;
    color: var(--clean-text-secondary);
    box-shadow: none;
}

.clean-btn-ghost:hover {
    background: var(--clean-bg-tertiary);
    color: var(--clean-text-primary);
}

/* Button Sizes */
.clean-btn-xs {
    padding: 0.375rem 0.625rem;
    font-size: 0.75rem;
}

.clean-btn-sm {
    padding: 0.5rem 0.875rem;
    font-size: 0.8125rem;
}

.clean-btn-lg {
    padding: 0.75rem 1.5rem;
    font-size: 1rem;
}

/* Button Icon Only */
.clean-btn-icon {
    padding: 0.625rem;
    aspect-ratio: 1;
}

.clean-btn-icon.clean-btn-xs {
    padding: 0.375rem;
}

.clean-btn-icon.clean-btn-sm {
    padding: 0.5rem;
}

.clean-btn-icon.clean-btn-lg {
    padding: 0.75rem;
}

/* ============================================================================
   4. INPUTS Y FORMULARIOS
   ============================================================================ */

.clean-input {
    width: 100%;
    padding: 0.625rem 0.875rem;
    font-family: inherit;
    font-size: 0.875rem;
    line-height: 1.5;
    color: var(--clean-text-primary);
    background: var(--clean-bg-elevated);
    border: 1px solid var(--clean-border-default);
    border-radius: var(--clean-radius-md);
    transition: border-color var(--clean-transition-fast),
                box-shadow var(--clean-transition-fast);
}

.clean-input::placeholder {
    color: var(--clean-text-placeholder);
}

.clean-input:hover {
    border-color: var(--clean-border-strong);
}

.clean-input:focus {
    outline: none;
    border-color: var(--clean-primary);
    box-shadow: var(--clean-focus-ring);
}

.clean-input:disabled {
    background: var(--clean-bg-tertiary);
    cursor: not-allowed;
    opacity: 0.7;
}

/* Input States */
.clean-input-error,
.clean-input.is-invalid {
    border-color: var(--clean-danger);
}

.clean-input-error:focus,
.clean-input.is-invalid:focus {
    border-color: var(--clean-danger);
    box-shadow: var(--clean-focus-ring-danger);
}

.clean-input-success,
.clean-input.is-valid {
    border-color: var(--clean-success);
}

.clean-input-success:focus,
.clean-input.is-valid:focus {
    border-color: var(--clean-success);
    box-shadow: var(--clean-focus-ring-success);
}

/* Input Sizes */
.clean-input-sm {
    padding: 0.5rem 0.75rem;
    font-size: 0.8125rem;
}

.clean-input-lg {
    padding: 0.75rem 1rem;
    font-size: 1rem;
}

/* Select */
.clean-select {
    width: 100%;
    padding: 0.625rem 2.5rem 0.625rem 0.875rem;
    font-family: inherit;
    font-size: 0.875rem;
    line-height: 1.5;
    color: var(--clean-text-primary);
    background-color: var(--clean-bg-elevated);
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 20 20' fill='%236b7280'%3E%3Cpath fill-rule='evenodd' d='M5.293 7.293a1 1 0 011.414 0L10 10.586l3.293-3.293a1 1 0 111.414 1.414l-4 4a1 1 0 01-1.414 0l-4-4a1 1 0 010-1.414z' clip-rule='evenodd'/%3E%3C/svg%3E");
    background-repeat: no-repeat;
    background-position: right 0.75rem center;
    background-size: 1rem;
    border: 1px solid var(--clean-border-default);
    border-radius: var(--clean-radius-md);
    appearance: none;
    -webkit-appearance: none;
    -moz-appearance: none;
    cursor: pointer;
    transition: border-color var(--clean-transition-fast),
                box-shadow var(--clean-transition-fast);
}

.clean-select:hover {
    border-color: var(--clean-border-strong);
}

.clean-select:focus {
    outline: none;
    border-color: var(--clean-primary);
    box-shadow: var(--clean-focus-ring);
}

.clean-select:disabled {
    background-color: var(--clean-bg-tertiary);
    cursor: not-allowed;
    opacity: 0.7;
}

/* Textarea */
.clean-textarea {
    width: 100%;
    padding: 0.625rem 0.875rem;
    font-family: inherit;
    font-size: 0.875rem;
    line-height: 1.5;
    color: var(--clean-text-primary);
    background: var(--clean-bg-elevated);
    border: 1px solid var(--clean-border-default);
    border-radius: var(--clean-radius-md);
    resize: vertical;
    min-height: 100px;
    transition: border-color var(--clean-transition-fast),
                box-shadow var(--clean-transition-fast);
}

.clean-textarea:focus {
    outline: none;
    border-color: var(--clean-primary);
    box-shadow: var(--clean-focus-ring);
}

/* Form Group */
.clean-form-group {
    margin-bottom: var(--clean-space-4);
}

.clean-label {
    display: block;
    margin-bottom: var(--clean-space-2);
    font-size: 0.875rem;
    font-weight: 500;
    color: var(--clean-text-primary);
}

.clean-label-required::after {
    content: " *";
    color: var(--clean-danger);
}

.clean-help-text {
    margin-top: var(--clean-space-1);
    font-size: 0.8125rem;
    color: var(--clean-text-muted);
}

.clean-error-text {
    margin-top: var(--clean-space-1);
    font-size: 0.8125rem;
    color: var(--clean-danger);
}

/* ============================================================================
   5. BADGES
   ============================================================================ */

.clean-badge {
    display: inline-flex;
    align-items: center;
    gap: var(--clean-space-1);
    padding: 0.25rem 0.625rem;
    font-size: 0.75rem;
    font-weight: 500;
    line-height: 1;
    border-radius: var(--clean-radius-full);
    background: var(--clean-bg-tertiary);
    color: var(--clean-text-secondary);
    border: 1px solid var(--clean-border-light);
}

.clean-badge-primary {
    background: var(--clean-primary-light);
    color: var(--clean-primary);
    border-color: var(--clean-primary-light);
}

.clean-badge-success {
    background: var(--clean-success-light);
    color: #166534;
    border-color: #bbf7d0;
}

.clean-badge-warning {
    background: var(--clean-warning-light);
    color: #92400e;
    border-color: #fde68a;
}

.clean-badge-danger {
    background: var(--clean-danger-light);
    color: #991b1b;
    border-color: #fecaca;
}

.clean-badge-info {
    background: var(--clean-info-light);
    color: #0e7490;
    border-color: #a5f3fc;
}

/* Badge Sizes */
.clean-badge-sm {
    padding: 0.125rem 0.5rem;
    font-size: 0.6875rem;
}

.clean-badge-lg {
    padding: 0.375rem 0.75rem;
    font-size: 0.8125rem;
}

/* Badge Dot */
.clean-badge-dot::before {
    content: "";
    width: 6px;
    height: 6px;
    border-radius: 50%;
    background: currentColor;
}

/* ============================================================================
   6. TABLAS
   ============================================================================ */

.clean-table {
    width: 100%;
    border-collapse: collapse;
    background: var(--clean-bg-elevated);
    border: 1px solid var(--clean-border-light);
    border-radius: var(--clean-radius-lg);
    overflow: hidden;
}

.clean-table th {
    padding: 0.75rem 1rem;
    text-align: left;
    font-size: 0.75rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    color: var(--clean-text-muted);
    background: var(--clean-bg-secondary);
    border-bottom: 1px solid var(--clean-border-light);
}

.clean-table td {
    padding: 0.75rem 1rem;
    font-size: 0.875rem;
    color: var(--clean-text-primary);
    border-bottom: 1px solid var(--clean-border-light);
}

.clean-table tbody tr:last-child td {
    border-bottom: none;
}

.clean-table tbody tr:hover td {
    background: var(--clean-bg-hover);
}

/* Table Compact */
.clean-table-compact th,
.clean-table-compact td {
    padding: 0.5rem 0.75rem;
}

/* Table Striped */
.clean-table-striped tbody tr:nth-child(even) td {
    background: var(--clean-bg-secondary);
}

/* ============================================================================
   7. KPI CARDS
   ============================================================================ */

.clean-kpi {
    background: var(--clean-bg-elevated);
    border: 1px solid var(--clean-border-light);
    border-radius: var(--clean-radius-lg);
    padding: var(--clean-space-5);
    box-shadow: var(--clean-shadow-sm);
    transition: box-shadow var(--clean-transition-normal),
                transform var(--clean-transition-normal);
}

.clean-kpi:hover {
    box-shadow: var(--clean-shadow-md);
    transform: translateY(-2px);
}

.clean-kpi-header {
    display: flex;
    align-items: flex-start;
    justify-content: space-between;
    margin-bottom: var(--clean-space-3);
}

.clean-kpi-icon {
    width: 40px;
    height: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: var(--clean-radius-lg);
    font-size: 1rem;
}

.clean-kpi-icon-primary {
    background: var(--clean-primary-light);
    color: var(--clean-primary);
}

.clean-kpi-icon-success {
    background: var(--clean-success-light);
    color: var(--clean-success);
}

.clean-kpi-icon-warning {
    background: var(--clean-warning-light);
    color: var(--clean-warning);
}

.clean-kpi-icon-danger {
    background: var(--clean-danger-light);
    color: var(--clean-danger);
}

.clean-kpi-icon-info {
    background: var(--clean-info-light);
    color: var(--clean-info);
}

.clean-kpi-value {
    font-size: 1.75rem;
    font-weight: 700;
    line-height: 1;
    color: var(--clean-text-primary);
}

.clean-kpi-label {
    font-size: 0.8125rem;
    color: var(--clean-text-muted);
    margin-top: var(--clean-space-1);
}

.clean-kpi-trend {
    display: inline-flex;
    align-items: center;
    gap: 0.25rem;
    font-size: 0.75rem;
    font-weight: 500;
}

.clean-kpi-trend-up {
    color: var(--clean-success);
}

.clean-kpi-trend-down {
    color: var(--clean-danger);
}

/* ============================================================================
   8. PROGRESS BARS
   ============================================================================ */

.clean-progress {
    height: 8px;
    background: var(--clean-bg-tertiary);
    border-radius: var(--clean-radius-full);
    overflow: hidden;
}

.clean-progress-bar {
    height: 100%;
    border-radius: var(--clean-radius-full);
    transition: width var(--clean-transition-slow);
}

.clean-progress-primary {
    background: var(--clean-primary);
}

.clean-progress-success {
    background: var(--clean-success);
}

.clean-progress-warning {
    background: var(--clean-warning);
}

.clean-progress-danger {
    background: var(--clean-danger);
}

/* Progress with label */
.clean-progress-labeled {
    display: flex;
    align-items: center;
    gap: var(--clean-space-3);
}

.clean-progress-labeled .clean-progress {
    flex: 1;
}

.clean-progress-label {
    font-size: 0.8125rem;
    font-weight: 500;
    color: var(--clean-text-secondary);
    min-width: 3rem;
    text-align: right;
}

/* ============================================================================
   9. ALERTAS Y MENSAJES
   ============================================================================ */

.clean-alert {
    display: flex;
    align-items: flex-start;
    gap: var(--clean-space-3);
    padding: var(--clean-space-4);
    border-radius: var(--clean-radius-lg);
    border: 1px solid;
}

.clean-alert-icon {
    flex-shrink: 0;
    font-size: 1.25rem;
}

.clean-alert-content {
    flex: 1;
}

.clean-alert-title {
    font-weight: 600;
    margin-bottom: var(--clean-space-1);
}

.clean-alert-message {
    font-size: 0.875rem;
}

.clean-alert-info {
    background: var(--clean-info-lighter);
    border-color: var(--clean-info-light);
    color: var(--clean-info-hover);
}

.clean-alert-success {
    background: var(--clean-success-lighter);
    border-color: var(--clean-success-light);
    color: #166534;
}

.clean-alert-warning {
    background: var(--clean-warning-lighter);
    border-color: var(--clean-warning-light);
    color: #92400e;
}

.clean-alert-danger {
    background: var(--clean-danger-lighter);
    border-color: var(--clean-danger-light);
    color: #991b1b;
}

/* ============================================================================
   10. LISTA DE NAVEGACIÓN / MENÚ
   ============================================================================ */

.clean-menu-item {
    display: flex;
    align-items: center;
    gap: var(--clean-space-3);
    padding: var(--clean-space-3) var(--clean-space-4);
    font-size: 0.875rem;
    color: var(--clean-text-secondary);
    text-decoration: none;
    border-radius: var(--clean-radius-md);
    transition: all var(--clean-transition-fast);
}

.clean-menu-item:hover {
    background: var(--clean-bg-tertiary);
    color: var(--clean-text-primary);
}

.clean-menu-item.active {
    background: var(--clean-primary-lighter);
    color: var(--clean-primary);
    font-weight: 500;
}

.clean-menu-item-icon {
    width: 20px;
    text-align: center;
    opacity: 0.7;
}

.clean-menu-item:hover .clean-menu-item-icon,
.clean-menu-item.active .clean-menu-item-icon {
    opacity: 1;
}

/* ============================================================================
   11. UTILIDADES
   ============================================================================ */

/* Text Colors */
.clean-text-primary { color: var(--clean-text-primary) !important; }
.clean-text-secondary { color: var(--clean-text-secondary) !important; }
.clean-text-muted { color: var(--clean-text-muted) !important; }
.clean-text-success { color: var(--clean-success) !important; }
.clean-text-danger { color: var(--clean-danger) !important; }
.clean-text-warning { color: var(--clean-warning) !important; }

/* Background Colors */
.clean-bg-white { background-color: var(--clean-bg-elevated) !important; }
.clean-bg-gray { background-color: var(--clean-bg-secondary) !important; }
.clean-bg-dark-gray { background-color: var(--clean-bg-tertiary) !important; }

/* Border */
.clean-border { border: 1px solid var(--clean-border-light) !important; }
.clean-border-left { border-left: 3px solid var(--clean-primary) !important; }
.clean-border-left-success { border-left: 3px solid var(--clean-success) !important; }
.clean-border-left-warning { border-left: 3px solid var(--clean-warning) !important; }
.clean-border-left-danger { border-left: 3px solid var(--clean-danger) !important; }

/* Shadow */
.clean-shadow-none { box-shadow: none !important; }
.clean-shadow-sm { box-shadow: var(--clean-shadow-sm) !important; }
.clean-shadow-md { box-shadow: var(--clean-shadow-md) !important; }
.clean-shadow-lg { box-shadow: var(--clean-shadow-lg) !important; }

/* ============================================================================
   12. MAPEO DE COMPATIBILIDAD (neu-* → clean-*)
   ============================================================================
   Estas clases permiten una transición gradual del neumorfismo al diseño limpio.
   Se pueden usar como alias temporales mientras se actualiza el HTML.
   ============================================================================ */

/* Cards */
.neu-card {
    background: var(--clean-bg-elevated);
    border: 1px solid var(--clean-border-light);
    border-radius: var(--clean-radius-lg);
    padding: var(--clean-space-5);
    box-shadow: var(--clean-shadow-sm);
    transition: box-shadow var(--clean-transition-normal),
                transform var(--clean-transition-normal);
}

.neu-card:hover {
    box-shadow: var(--clean-shadow-md);
    transform: translateY(-2px);
}

.neu-card-inset {
    background: var(--clean-bg-tertiary);
    border: 1px solid var(--clean-border-light);
    border-radius: var(--clean-radius-lg);
    padding: var(--clean-space-4);
}

/* Buttons */
.neu-btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: var(--clean-space-2);
    padding: 0.625rem 1rem;
    font-family: inherit;
    font-size: 0.875rem;
    font-weight: 500;
    border-radius: var(--clean-radius-md);
    cursor: pointer;
    transition: all var(--clean-transition-fast);
    background: var(--clean-bg-elevated);
    border: 1px solid var(--clean-border-default);
    color: var(--clean-text-primary);
    box-shadow: var(--clean-shadow-xs);
}

.neu-btn:hover {
    background: var(--clean-bg-hover);
    border-color: var(--clean-border-strong);
}

.neu-btn:active {
    transform: translateY(1px);
    box-shadow: none;
}

.neu-btn-primary {
    background: var(--clean-primary);
    border-color: var(--clean-primary);
    color: var(--clean-text-on-primary);
}

.neu-btn-primary:hover {
    background: var(--clean-primary-hover);
    border-color: var(--clean-primary-hover);
}

.neu-btn-success {
    background: var(--clean-success);
    border-color: var(--clean-success);
    color: var(--clean-text-on-primary);
}

.neu-btn-success:hover {
    background: var(--clean-success-hover);
    border-color: var(--clean-success-hover);
}

.neu-btn-danger {
    background: var(--clean-danger);
    border-color: var(--clean-danger);
    color: var(--clean-text-on-primary);
}

.neu-btn-danger:hover {
    background: var(--clean-danger-hover);
    border-color: var(--clean-danger-hover);
}

.neu-btn-warning {
    background: var(--clean-warning);
    border-color: var(--clean-warning);
    color: var(--clean-text-on-primary);
}

.neu-btn-warning:hover {
    background: var(--clean-warning-hover);
    border-color: var(--clean-warning-hover);
}

.neu-btn-sm {
    padding: 0.5rem 0.875rem;
    font-size: 0.8125rem;
}

/* Inputs */
.neu-input {
    width: 100%;
    padding: 0.625rem 0.875rem;
    font-family: inherit;
    font-size: 0.875rem;
    color: var(--clean-text-primary);
    background: var(--clean-bg-elevated);
    border: 1px solid var(--clean-border-default);
    border-radius: var(--clean-radius-md);
    transition: border-color var(--clean-transition-fast),
                box-shadow var(--clean-transition-fast);
}

.neu-input::placeholder {
    color: var(--clean-text-placeholder);
}

.neu-input:focus {
    outline: none;
    border-color: var(--clean-primary);
    box-shadow: var(--clean-focus-ring);
}

.neu-select {
    width: 100%;
    padding: 0.625rem 2.5rem 0.625rem 0.875rem;
    font-family: inherit;
    font-size: 0.875rem;
    color: var(--clean-text-primary);
    background-color: var(--clean-bg-elevated);
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 20 20' fill='%236b7280'%3E%3Cpath fill-rule='evenodd' d='M5.293 7.293a1 1 0 011.414 0L10 10.586l3.293-3.293a1 1 0 111.414 1.414l-4 4a1 1 0 01-1.414 0l-4-4a1 1 0 010-1.414z' clip-rule='evenodd'/%3E%3C/svg%3E");
    background-repeat: no-repeat;
    background-position: right 0.75rem center;
    background-size: 1rem;
    border: 1px solid var(--clean-border-default);
    border-radius: var(--clean-radius-md);
    appearance: none;
    cursor: pointer;
}

.neu-select:focus {
    outline: none;
    border-color: var(--clean-primary);
    box-shadow: var(--clean-focus-ring);
}

/* Badges */
.neu-badge {
    display: inline-flex;
    align-items: center;
    padding: 0.25rem 0.625rem;
    font-size: 0.75rem;
    font-weight: 500;
    border-radius: var(--clean-radius-full);
    background: var(--clean-bg-tertiary);
    color: var(--clean-text-secondary);
    border: 1px solid var(--clean-border-light);
}

.neu-badge-primary {
    background: var(--clean-primary-light);
    color: var(--clean-primary);
    border-color: var(--clean-primary-light);
}

.neu-badge-success {
    background: var(--clean-success-light);
    color: #166534;
    border-color: #bbf7d0;
}

.neu-badge-warning {
    background: var(--clean-warning-light);
    color: #92400e;
    border-color: #fde68a;
}

.neu-badge-danger {
    background: var(--clean-danger-light);
    color: #991b1b;
    border-color: #fecaca;
}

/* Tables */
.neu-table {
    width: 100%;
    border-collapse: collapse;
    background: var(--clean-bg-elevated);
    border: 1px solid var(--clean-border-light);
    border-radius: var(--clean-radius-lg);
    overflow: hidden;
}

.neu-table th {
    padding: 0.75rem 1rem;
    text-align: left;
    font-size: 0.75rem;
    font-weight: 600;
    text-transform: uppercase;
    color: var(--clean-text-muted);
    background: var(--clean-bg-secondary);
    border-bottom: 1px solid var(--clean-border-light);
}

.neu-table td {
    padding: 0.75rem 1rem;
    font-size: 0.875rem;
    color: var(--clean-text-primary);
    border-bottom: 1px solid var(--clean-border-light);
}

.neu-table tbody tr:last-child td {
    border-bottom: none;
}

.neu-table tbody tr:hover td {
    background: var(--clean-bg-hover);
}

/* KPI Cards */
.neu-kpi {
    background: var(--clean-bg-elevated);
    border: 1px solid var(--clean-border-light);
    border-radius: var(--clean-radius-lg);
    padding: var(--clean-space-5);
    box-shadow: var(--clean-shadow-sm);
    text-align: center;
}

.neu-kpi:hover {
    box-shadow: var(--clean-shadow-md);
    transform: translateY(-2px);
}

.neu-kpi-icon {
    width: 48px;
    height: 48px;
    margin: 0 auto var(--clean-space-3);
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: var(--clean-radius-lg);
    background: var(--clean-primary-light);
    color: var(--clean-primary);
    font-size: 1.25rem;
}

.neu-kpi-value {
    font-size: 1.75rem;
    font-weight: 700;
    color: var(--clean-text-primary);
}

.neu-kpi-label {
    font-size: 0.8125rem;
    color: var(--clean-text-muted);
    margin-top: var(--clean-space-1);
}

/* Progress Bars */
.neu-progress-bar {
    height: 8px;
    background: var(--clean-bg-tertiary);
    border-radius: var(--clean-radius-full);
    overflow: hidden;
}

.neu-progress-bar-fill {
    height: 100%;
    border-radius: var(--clean-radius-full);
    transition: width var(--clean-transition-slow);
}

.neu-progress-bar-fill.primary {
    background: var(--clean-primary);
}

.neu-progress-bar-fill.success {
    background: var(--clean-success);
}

/* Menu Items */
.neu-menu-item {
    display: flex;
    align-items: center;
    gap: var(--clean-space-3);
    padding: var(--clean-space-3) var(--clean-space-4);
    font-size: 0.875rem;
    color: var(--clean-text-secondary);
    text-decoration: none;
    border-radius: var(--clean-radius-md);
    transition: all var(--clean-transition-fast);
}

.neu-menu-item:hover {
    background: var(--clean-bg-tertiary);
    color: var(--clean-text-primary);
}

/* ============================================================================
   13. OVERRIDE DE FONDOS NEUMÓRFICOS
   ============================================================================
   Reemplaza el fondo gris neumórfico (#e0e5ec) por fondos limpios
   en contenedores que usen ese color.
   ============================================================================ */

/* Si algún elemento tiene fondo #e0e5ec inline, esta regla lo sobrescribe */
body.clean-theme,
.clean-theme {
    background-color: var(--clean-bg-secondary) !important;
}

/* Contenedores principales */
.dashboard-container,
.main-content,
.content-wrapper {
    background-color: var(--clean-bg-secondary);
}