/* ============================================================
   MiSitio Tools - Estilos del Compresor
   Versión: 4.0 (Corregido y optimizado para producción)
   Desarrollado por VIX Hosting - Perú
   ============================================================ */

/* ===== 1. SECCIÓN HERO DEL COMPRESOR ===== */
.compressor-hero {
    background: radial-gradient(circle at 0% 0%, rgba(16, 185, 129, 0.08) 0%, transparent 50%);
    transition: background var(--transition-base);
}

/* ===== 2. NIVELES DE COMPRESIÓN ===== */
.compression-levels {
    margin-bottom: var(--spacing-8);
    padding: var(--spacing-4);
    background: var(--color-bg-card);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-md);
    transition: background var(--transition-base), box-shadow var(--transition-base);
}

.section-label {
    display: flex;
    align-items: center;
    gap: var(--spacing-2);
    margin-bottom: var(--spacing-4);
    font-weight: 600;
    color: var(--color-text-primary);
    transition: color var(--transition-base);
}

.section-label i {
    color: var(--color-accent);
}

.level-buttons {
    display: flex;
    gap: var(--spacing-4);
    flex-wrap: wrap;
}

.level-btn {
    flex: 1;
    min-width: 120px;
    padding: var(--spacing-4);
    background: var(--color-bg-elevated);
    border: 2px solid var(--color-border-light);
    border-radius: var(--radius-md);
    cursor: pointer;
    transition: all var(--transition-base);
    text-align: center;
    user-select: none;
}

.level-btn i {
    font-size: var(--font-size-2xl);
    display: block;
    margin-bottom: var(--spacing-2);
    color: var(--color-accent);
    transition: color var(--transition-base);
}

.level-btn span {
    display: block;
    font-weight: 600;
    margin-bottom: var(--spacing-1);
}

.level-btn small {
    font-size: var(--font-size-xs);
    color: var(--color-text-tertiary);
    transition: color var(--transition-base);
}

.level-btn.active {
    background: var(--color-accent-gradient);
    border-color: transparent;
    color: white;
    transform: scale(1.02);
    box-shadow: var(--shadow-md);
}

.level-btn.active i,
.level-btn.active small {
    color: white;
}

.level-btn:hover:not(.active) {
    border-color: var(--color-accent);
    transform: translateY(-2px);
}

/* ✅ NUEVO: Accesibilidad para navegación por teclado */
.level-btn:focus-visible {
    outline: 2px solid var(--color-accent);
    outline-offset: 2px;
}

/* ===== 3. PANEL DE COMPARACIÓN ===== */
.comparison-panel {
    margin-bottom: var(--spacing-8);
    padding: var(--spacing-6);
    background: var(--color-bg-card);
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow-lg);
    animation: fadeIn 0.5s ease-out;
    transition: background var(--transition-base), box-shadow var(--transition-base);
}

.comparison-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: var(--spacing-6);
    flex-wrap: wrap;
    gap: var(--spacing-4);
}

.comparison-header h3 {
    display: flex;
    align-items: center;
    gap: var(--spacing-2);
    font-size: var(--font-size-lg);
    color: var(--color-text-primary);
    transition: color var(--transition-base);
}

.comparison-stats {
    display: flex;
    align-items: center;
    gap: var(--spacing-3);
    font-size: var(--font-size-sm);
    flex-wrap: wrap;
}

.comparison-stats .original-size {
    color: var(--color-danger);
    text-decoration: line-through;
}

.comparison-stats .compressed-size {
    color: var(--color-success);
    font-weight: 600;
}

.saved-badge {
    background: var(--color-success);
    color: white;
    padding: 0.25rem 0.75rem;
    border-radius: var(--radius-full);
    font-size: var(--font-size-xs);
    font-weight: 600;
}

.comparison-slider-container {
    position: relative;
    overflow: hidden;
    border-radius: var(--radius-lg);
    background: var(--color-bg-elevated);
    transition: background var(--transition-base);
}

.comparison-image {
    position: relative;
    width: 100%;
    max-height: 500px;
    overflow: hidden;
}

.comparison-image img {
    width: 100%;
    height: auto;
    display: block;
}

.comparison-overlay {
    position: absolute;
    top: 0;
    left: 0;
    height: 100%;
    overflow: hidden;
    transition: width 0.1s ease;
}

.comparison-overlay img {
    width: 100%;
    height: auto;
    position: absolute;
    top: 0;
    left: 0;
}

.slider-handle {
    position: absolute;
    top: 0;
    bottom: 0;
    left: 50%;
    width: 4px;
    /* ✅ CORREGIDO: Usar variable en lugar de white hardcodeado */
    background: var(--color-text-inverse, #ffffff);
    cursor: ew-resize;
    transform: translateX(-50%);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 10;
    box-shadow: 0 0 10px rgba(0,0,0,0.2);
}

.slider-handle i {
    background: var(--color-accent);
    border-radius: 50%;
    padding: var(--spacing-2);
    color: white;
    font-size: var(--font-size-sm);
    box-shadow: var(--shadow-md);
    transition: transform var(--transition-fast);
}

.slider-handle:hover i {
    transform: scale(1.1);
}

/* ✅ NUEVO: Accesibilidad para el slider */
.slider-handle:focus-visible {
    outline: 2px solid var(--color-accent);
    outline-offset: 4px;
}

.comparison-labels {
    display: flex;
    justify-content: space-between;
    margin-top: var(--spacing-3);
    font-size: var(--font-size-xs);
    color: var(--color-text-tertiary);
    transition: color var(--transition-base);
}

/* ===== 4. CONTROLES DE COMPRESIÓN ===== */
.compress-controls {
    display: grid;
    grid-template-columns: 1fr 0.8fr;
    gap: var(--spacing-8);
    margin-bottom: var(--spacing-12);
}

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

.control-card,
.stats-card {
    background: var(--color-bg-card);
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow-xl);
    overflow: hidden;
    transition: transform var(--transition-base), box-shadow var(--transition-base), background var(--transition-base);
}

.control-card:hover,
.stats-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-2xl);
}

.control-card .card-header,
.stats-card .card-header {
    padding: var(--spacing-5) var(--spacing-6);
    border-bottom: 1px solid var(--color-border-light);
    display: flex;
    align-items: center;
    gap: var(--spacing-3);
    transition: border-color var(--transition-base);
}

.control-card .card-header i,
.stats-card .card-header i {
    font-size: var(--font-size-xl);
    background: var(--color-accent-gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.control-card .card-header h3,
.stats-card .card-header h3 {
    flex: 1;
    font-size: var(--font-size-lg);
    font-weight: 600;
    color: var(--color-text-primary);
    transition: color var(--transition-base);
}

/* ===== 5. CALIDAD Y SLIDER ===== */
.quality-tips {
    display: flex;
    justify-content: space-between;
    margin-top: var(--spacing-2);
    font-size: var(--font-size-xs);
    color: var(--color-text-tertiary);
    transition: color var(--transition-base);
}

/* ===== 6. REDIMENSIONADO ===== */
.resize-option {
    display: flex;
    align-items: center;
    gap: var(--spacing-4);
    flex-wrap: wrap;
}

.resize-option select {
    padding: var(--spacing-2) var(--spacing-3);
    border: 1px solid var(--color-border-light);
    border-radius: var(--radius-sm);
    background: var(--color-bg-secondary);
    color: var(--color-text-primary);
    font-size: var(--font-size-sm);
    transition: border-color var(--transition-fast), background var(--transition-base), color var(--transition-base);
}

#customResize {
    margin-top: var(--spacing-3);
    display: flex;
    align-items: center;
    gap: var(--spacing-2);
    flex-wrap: wrap;
}

.custom-input {
    width: 100px;
    padding: var(--spacing-2);
    border: 1px solid var(--color-border-light);
    border-radius: var(--radius-sm);
    background: var(--color-bg-input);
    color: var(--color-text-primary);
    font-size: var(--font-size-sm);
    transition: border-color var(--transition-fast), background var(--transition-base), color var(--transition-base);
}

/* ===== 7. OPCIONES DE OPTIMIZACIÓN ===== */
.optimize-options {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-3);
}

.optimize-options label {
    display: flex;
    align-items: center;
    gap: var(--spacing-3);
    cursor: pointer;
    font-weight: 400;
    color: var(--color-text-primary);
    transition: color var(--transition-base);
}

.optimize-options label small {
    font-size: var(--font-size-xs);
    color: var(--color-text-tertiary);
    transition: color var(--transition-base);
}

.optimize-options input[type="checkbox"] {
    width: 18px;
    height: 18px;
    accent-color: var(--color-accent);
    cursor: pointer;
}

/* ✅ NUEVO: Foco visible para el checkbox */
.optimize-options input[type="checkbox"]:focus-visible {
    outline: 2px solid var(--color-accent);
    outline-offset: 2px;
}

/* ===== 8. ESTADÍSTICAS ===== */
.stats-content {
    padding: var(--spacing-6);
}

.stat-item {
    display: flex;
    justify-content: space-between;
    padding: var(--spacing-3) 0;
    border-bottom: 1px solid var(--color-border-light);
    transition: border-color var(--transition-base), background var(--transition-fast);
}

.stat-item:last-child {
    border-bottom: none;
}

.stat-item.highlight {
    background: var(--color-accent-gradient);
    margin: 0 calc(-1 * var(--spacing-6));
    padding: var(--spacing-3) var(--spacing-6);
    color: white;
    border-radius: var(--radius-sm);
}

.stat-item.highlight .stat-value {
    font-weight: 700;
    font-size: var(--font-size-lg);
}

.stat-label {
    color: var(--color-text-secondary);
    transition: color var(--transition-base);
}

.stat-value {
    font-weight: 600;
    color: var(--color-text-primary);
    transition: color var(--transition-base);
}

.stat-item.highlight .stat-label,
.stat-item.highlight .stat-value {
    color: white;
}

/* ===== 9. CÍRCULO DE PROGRESO ===== */
.progress-circle-container {
    display: flex;
    justify-content: center;
    margin-top: var(--spacing-6);
}

.progress-circle {
    transform: rotate(-90deg);
    max-width: 120px;
}

.progress-bg {
    fill: none;
    stroke: var(--color-border-light);
    stroke-width: 8;
    transition: stroke var(--transition-base);
}

.progress-fill-circle {
    fill: none;
    stroke: url(#accent-gradient);
    stroke-width: 8;
    stroke-linecap: round;
    transition: stroke-dasharray 0.5s ease;
}

.progress-text-center {
    fill: var(--color-text-primary);
    font-size: 1.5rem;
    font-weight: 700;
    text-anchor: middle;
    dominant-baseline: middle;
    transform: rotate(90deg);
    transform-origin: center;
    transition: fill var(--transition-base);
}

/* ===== 10. BOTÓN COMPRIMIR ===== */
#compressBtn {
    margin: var(--spacing-4) var(--spacing-6);
    width: calc(100% - var(--spacing-12));
}

/* ===== 11. RESPONSIVE ===== */
@media (max-width: 768px) {
    .level-buttons {
        flex-direction: column;
    }

    .level-btn {
        display: flex;
        align-items: center;
        gap: var(--spacing-4);
        min-width: unset;
    }

    .level-btn i {
        margin-bottom: 0;
        font-size: var(--font-size-xl);
    }

    .level-btn small {
        margin-left: auto;
    }

    .comparison-stats {
        font-size: var(--font-size-xs);
        gap: var(--spacing-2);
    }

    .comparison-stats .original-size,
    .comparison-stats .compressed-size {
        display: inline-block;
    }

    .resize-option {
        flex-direction: column;
        align-items: flex-start;
    }

    .resize-option select {
        width: 100%;
    }

    .stat-item {
        flex-direction: column;
        align-items: center;
        text-align: center;
    }

    .stat-item.highlight {
        margin: 0 calc(-1 * var(--spacing-4));
        padding: var(--spacing-3) var(--spacing-4);
    }

    .progress-circle-container {
        margin-top: var(--spacing-4);
    }

    .progress-circle {
        max-width: 100px;
    }

    #compressBtn {
        width: calc(100% - var(--spacing-8));
        margin: var(--spacing-3) var(--spacing-4);
    }
}

@media (max-width: 480px) {
    .comparison-header {
        flex-direction: column;
        align-items: stretch;
        text-align: center;
    }

    .comparison-stats {
        justify-content: center;
    }

    .slider-handle i {
        padding: var(--spacing-1);
        font-size: var(--font-size-xs);
    }

    .custom-input {
        width: 70px;
    }
}