/* ========================================
   COLORHARMONY PRO - STYLES
   Based on Unified Design System
   ======================================== */

:root {
    /* Colores Principales */
    --primary: #FF6E00;
    --primary-dark: #E55A00;
    --primary-light: #FF8A33;
    --primary-rgb: 255, 110, 0;
    
    /* Colores Semánticos */
    --success: #10b981;
    --error: #ef4444;
    --warning: #f59e0b;
    --info: #3b82f6;
    
    /* Tema Oscuro (Default) */
    --bg-dark: #0a0e1b;
    --bg-panel: #131823;
    --bg-card: #1c2333;
    --bg-hover: #252d3d;
    
    --text-primary: #ffffff;
    --text-secondary: #94a3b8;
    --text-muted: #64748b;
    
    --border: #2a3441;
    --border-light: #374151;
    
    /* Sombras */
    --shadow-sm: 0 2px 4px rgba(0,0,0,0.1);
    --shadow-md: 0 4px 12px rgba(0,0,0,0.15);
    --shadow-lg: 0 8px 24px rgba(0,0,0,0.2);
    --shadow-xl: 0 16px 48px rgba(0,0,0,0.3);
    
    /* Border Radius */
    --radius-sm: 6px;
    --radius-md: 10px;
    --radius-lg: 16px;
    --radius-xl: 24px;
    --radius-full: 9999px;
    
    /* Transiciones */
    --transition-fast: 150ms cubic-bezier(0.4, 0, 0.2, 1);
    --transition-base: 250ms cubic-bezier(0.4, 0, 0.2, 1);
    --transition-slow: 350ms cubic-bezier(0.4, 0, 0.2, 1);
    
    /* Layout */
    --sidebar-width: 260px;
    --sidebar-collapsed: 70px;
    --header-height: 60px;
    
    /* Espaciado */
    --spacing-xs: 4px;
    --spacing-sm: 8px;
    --spacing-md: 16px;
    --spacing-lg: 24px;
    --spacing-xl: 32px;
    --spacing-2xl: 48px;
    --spacing-3xl: 64px;
    
    /* Tipografía */
    --font-sans: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'Roboto', 'Oxygen', 'Ubuntu', sans-serif;
    --font-mono: 'SF Mono', 'Monaco', 'Inconsolata', 'Fira Code', monospace;
    
    --font-size-xs: 0.75rem;
    --font-size-sm: 0.875rem;
    --font-size-base: 1rem;
    --font-size-lg: 1.125rem;
    --font-size-xl: 1.25rem;
    --font-size-2xl: 1.5rem;
    --font-size-3xl: 1.875rem;
    
    --font-weight-normal: 400;
    --font-weight-medium: 500;
    --font-weight-semibold: 600;
    --font-weight-bold: 700;
}

/* Light Theme */
[data-theme="light"] {
    --bg-dark: #ffffff;
    --bg-panel: #f8fafc;
    --bg-card: #ffffff;
    --bg-hover: #f1f5f9;
    
    --text-primary: #0f172a;
    --text-secondary: #475569;
    --text-muted: #94a3b8;
    
    --border: #e2e8f0;
    --border-light: #cbd5e1;
}

/* Base Styles */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    font-size: 16px;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

body {
    font-family: var(--font-sans);
    font-size: var(--font-size-base);
    color: var(--text-primary);
    background: var(--bg-dark);
    overflow: hidden;
}

/* App Container */
.app-container {
    display: flex;
    height: 100vh;
    overflow: hidden;
}

/* Sidebar */
.sidebar {
    width: var(--sidebar-width);
    background: var(--bg-panel);
    border-right: 1px solid var(--border);
    display: flex;
    flex-direction: column;
    transition: width var(--transition-base);
    z-index: 10;
}

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

.sidebar-header {
    height: var(--header-height);
    display: flex;
    align-items: center;
    padding: 0 var(--spacing-lg);
    border-bottom: 1px solid var(--border);
}

.sidebar-logo {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
}

.sidebar-logo-icon {
    width: 36px;
    height: 36px;
    background: linear-gradient(135deg, var(--primary), var(--primary-dark));
    border-radius: var(--radius-md);
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-size: 1.2rem;
    flex-shrink: 0;
}

.sidebar-logo-text {
    font-weight: var(--font-weight-bold);
    font-size: var(--font-size-lg);
    transition: opacity var(--transition-base);
}

.sidebar.collapsed .sidebar-logo-text {
    opacity: 0;
    visibility: hidden;
}

.sidebar-nav {
    flex: 1;
    padding: var(--spacing-sm);
    overflow-y: auto;
}

.sidebar-footer {
    border-top: 1px solid var(--border);
    padding: var(--spacing-sm);
}

.nav-item {
    display: flex;
    align-items: center;
    padding: var(--spacing-md);
    margin-bottom: var(--spacing-xs);
    border-radius: var(--radius-md);
    color: var(--text-secondary);
    cursor: pointer;
    transition: all var(--transition-fast);
}

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

.nav-item.active {
    background: rgba(var(--primary-rgb), 0.15);
    color: var(--primary);
}

.nav-icon {
    width: 20px;
    margin-right: var(--spacing-md);
    font-size: 1.1rem;
    display: flex;
    align-items: center;
    justify-content: center;
}

.sidebar.collapsed .nav-icon {
    margin-right: 0;
}

.nav-text {
    font-size: var(--font-size-sm);
    font-weight: var(--font-weight-medium);
}

.sidebar.collapsed .nav-text {
    display: none;
}

/* Main Content */
.main-content {
    flex: 1;
    display: flex;
    flex-direction: column;
    overflow: hidden;
}

/* Header */
.header {
    height: var(--header-height);
    background: var(--bg-panel);
    border-bottom: 1px solid var(--border);
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0 var(--spacing-lg);
}

.header-title {
    font-size: var(--font-size-xl);
    font-weight: var(--font-weight-semibold);
}

.header-actions {
    display: flex;
    gap: var(--spacing-sm);
}

/* Content Wrapper */
.content-wrapper {
    flex: 1;
    display: flex;
    overflow: hidden;
}

/* Control Panels */
.control-panels {
    width: 320px;
    background: var(--bg-panel);
    border-right: 1px solid var(--border);
    overflow-y: auto;
    padding: var(--spacing-lg);
}

.control-panel {
    display: none;
}

.control-panel.active {
    display: block;
}

.panel-title {
    font-size: var(--font-size-lg);
    font-weight: var(--font-weight-semibold);
    margin-bottom: var(--spacing-lg);
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
}

/* Upload Area */
.upload-area {
    background: var(--bg-card);
    border: 2px dashed var(--border);
    border-radius: var(--radius-lg);
    padding: var(--spacing-2xl);
    text-align: center;
    cursor: pointer;
    transition: all var(--transition-base);
}

.upload-area:hover {
    border-color: var(--primary);
    background: var(--bg-hover);
}

.upload-area.dragover {
    border-color: var(--primary);
    background: rgba(var(--primary-rgb), 0.1);
}

.upload-icon {
    font-size: 3rem;
    color: var(--primary);
    margin-bottom: var(--spacing-md);
}

.upload-text {
    font-size: var(--font-size-base);
    margin-bottom: var(--spacing-xs);
}

.upload-hint {
    font-size: var(--font-size-sm);
    color: var(--text-muted);
    margin-bottom: var(--spacing-lg);
}

/* Image List */
.image-list {
    margin-top: var(--spacing-lg);
}

.image-item {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
    padding: var(--spacing-sm);
    background: var(--bg-card);
    border-radius: var(--radius-md);
    margin-bottom: var(--spacing-sm);
    cursor: pointer;
    transition: all var(--transition-fast);
}

.image-item:hover {
    background: var(--bg-hover);
}

.image-item.active {
    background: rgba(var(--primary-rgb), 0.1);
    border: 1px solid var(--primary);
}

.image-thumbnail {
    width: 40px;
    height: 40px;
    border-radius: var(--radius-sm);
    object-fit: cover;
}

.image-info {
    flex: 1;
}

.image-name {
    font-size: var(--font-size-sm);
    font-weight: var(--font-weight-medium);
}

.image-size {
    font-size: var(--font-size-xs);
    color: var(--text-muted);
}

.image-remove {
    color: var(--text-muted);
    cursor: pointer;
    transition: color var(--transition-fast);
}

.image-remove:hover {
    color: var(--error);
}

/* Color Palette */
.color-palette {
    display: flex;
    gap: var(--spacing-sm);
    flex-wrap: wrap;
    margin-bottom: var(--spacing-md);
}

.color-input {
    width: 40px;
    height: 40px;
    border: 2px solid var(--border);
    border-radius: var(--radius-sm);
    cursor: pointer;
    transition: all var(--transition-fast);
}

.color-input:hover {
    transform: scale(1.1);
    border-color: var(--primary);
}

.btn-add-color {
    width: 40px;
    height: 40px;
    border: 2px dashed var(--border);
    border-radius: var(--radius-sm);
    background: transparent;
    color: var(--text-secondary);
    cursor: pointer;
    transition: all var(--transition-fast);
}

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

/* Filters Grid */
.filters-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--spacing-sm);
    margin-bottom: var(--spacing-lg);
}

.filter-item {
    cursor: pointer;
    transition: all var(--transition-fast);
}

.filter-item:hover {
    transform: scale(1.05);
}

.filter-item.active .filter-preview {
    border: 2px solid var(--primary);
}

.filter-preview {
    height: 60px;
    border-radius: var(--radius-md);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: var(--font-size-xs);
    font-weight: var(--font-weight-semibold);
    color: white;
    text-shadow: 0 1px 2px rgba(0,0,0,0.5);
    background: var(--bg-hover);
}

.vintage-preview { background: linear-gradient(45deg, #8B7355, #D4A574); }
.noir-preview { background: linear-gradient(45deg, #2C2C2C, #000000); }
.cinematic-preview { background: linear-gradient(45deg, #1E3A5F, #8B4513); }
.warm-preview { background: linear-gradient(45deg, #FF6B35, #F7931E); }
.cold-preview { background: linear-gradient(45deg, #3498DB, #2C3E50); }

/* Effects Section */
.effects-section {
    margin-top: var(--spacing-lg);
}

.section-subtitle {
    font-size: var(--font-size-base);
    font-weight: var(--font-weight-semibold);
    margin-bottom: var(--spacing-md);
}

/* Forms */
.form-group {
    margin-bottom: var(--spacing-lg);
}

.form-label {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    margin-bottom: var(--spacing-sm);
    font-size: var(--font-size-sm);
    font-weight: var(--font-weight-medium);
    color: var(--text-secondary);
}

.value-display {
    margin-left: auto;
    color: var(--primary);
    font-weight: var(--font-weight-semibold);
}

.form-input,
.form-select,
.form-textarea {
    width: 100%;
    padding: var(--spacing-sm) var(--spacing-md);
    background: var(--bg-card);
    border: 2px solid var(--border);
    border-radius: var(--radius-md);
    color: var(--text-primary);
    font-size: var(--font-size-base);
    transition: all var(--transition-fast);
}

.form-input:focus,
.form-select:focus,
.form-textarea:focus {
    outline: none;
    border-color: var(--primary);
    box-shadow: 0 0 0 3px rgba(var(--primary-rgb), 0.1);
}

.form-textarea {
    min-height: 80px;
    resize: vertical;
}

.form-select {
    cursor: pointer;
    appearance: none;
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' fill='none' viewBox='0 0 20 20'%3E%3Cpath stroke='%236b7280' stroke-linecap='round' stroke-linejoin='round' stroke-width='1.5' d='M6 8l4 4 4-4'/%3E%3C/svg%3E");
    background-position: right 0.5rem center;
    background-repeat: no-repeat;
    background-size: 1.5em 1.5em;
    padding-right: 2.5rem;
}

.form-range {
    width: 100%;
    height: 6px;
    background: var(--bg-hover);
    border-radius: var(--radius-full);
    outline: none;
    -webkit-appearance: none;
}

.form-range::-webkit-slider-thumb {
    -webkit-appearance: none;
    width: 18px;
    height: 18px;
    background: var(--primary);
    border-radius: 50%;
    cursor: pointer;
    transition: all var(--transition-fast);
}

.form-range::-webkit-slider-thumb:hover {
    transform: scale(1.2);
    box-shadow: 0 0 0 8px rgba(var(--primary-rgb), 0.1);
}

/* Resize Controls */
.resize-controls {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    margin-bottom: var(--spacing-sm);
}

.resize-separator {
    color: var(--text-muted);
}

.checkbox-label {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    font-size: var(--font-size-sm);
    color: var(--text-secondary);
}

/* Batch Stats */
.batch-stats {
    display: flex;
    justify-content: space-around;
    padding: var(--spacing-md);
    background: var(--bg-card);
    border-radius: var(--radius-md);
    margin-bottom: var(--spacing-lg);
}

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

.stat-label {
    display: block;
    font-size: var(--font-size-xs);
    color: var(--text-muted);
    margin-bottom: var(--spacing-xs);
}

.stat-value {
    font-size: var(--font-size-2xl);
    font-weight: var(--font-weight-bold);
    color: var(--primary);
}

/* Progress Bar */
.progress-bar-container {
    margin-top: var(--spacing-lg);
}

.progress {
    width: 100%;
    height: 8px;
    background: var(--bg-hover);
    border-radius: var(--radius-full);
    overflow: hidden;
}

.progress-bar {
    height: 100%;
    background: linear-gradient(90deg, var(--primary), var(--primary-light));
    border-radius: var(--radius-full);
    transition: width var(--transition-base);
}

.progress-text {
    display: block;
    text-align: center;
    margin-top: var(--spacing-sm);
    font-size: var(--font-size-sm);
    color: var(--text-secondary);
}

/* Preview Area */
.preview-area {
    flex: 1;
    display: flex;
    flex-direction: column;
    background: var(--bg-dark);
}

.preview-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: var(--spacing-md) var(--spacing-lg);
    background: var(--bg-panel);
    border-bottom: 1px solid var(--border);
}

.preview-tabs {
    display: flex;
    gap: var(--spacing-sm);
}

.tab-btn {
    padding: var(--spacing-sm) var(--spacing-md);
    background: transparent;
    border: none;
    color: var(--text-secondary);
    cursor: pointer;
    border-radius: var(--radius-md);
    transition: all var(--transition-fast);
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
}

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

.tab-btn.active {
    background: rgba(var(--primary-rgb), 0.15);
    color: var(--primary);
}

.preview-actions {
    display: flex;
    gap: var(--spacing-sm);
}

/* Preview Container */
.preview-container {
    flex: 1;
    position: relative;
    overflow: auto;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: var(--spacing-lg);
}

.preview-empty {
    text-align: center;
    color: var(--text-muted);
}

.preview-empty i {
    font-size: 4rem;
    margin-bottom: var(--spacing-md);
}

/* Single View */
.preview-single {
    position: relative;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: var(--spacing-lg);
}

#previewCanvas {
    max-width: 100%;
    height: auto;
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-lg);
}

.image-selector {
    display: flex;
    gap: var(--spacing-sm);
    padding: var(--spacing-sm);
    background: var(--bg-panel);
    border-radius: var(--radius-md);
}

.selector-item {
    width: 60px;
    height: 60px;
    border-radius: var(--radius-sm);
    cursor: pointer;
    border: 2px solid transparent;
    transition: all var(--transition-fast);
    overflow: hidden;
}

.selector-item:hover {
    border-color: var(--primary);
}

.selector-item.active {
    border-color: var(--primary);
    box-shadow: 0 0 0 3px rgba(var(--primary-rgb), 0.2);
}

.selector-item img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

/* Compare View */
.preview-compare {
    width: 100%;
    height: 100%;
}

.compare-container {
    display: flex;
    gap: var(--spacing-lg);
    align-items: center;
    justify-content: center;
    height: 100%;
}

.compare-image {
    flex: 1;
    text-align: center;
}

.compare-image h4 {
    margin-bottom: var(--spacing-md);
    color: var(--text-secondary);
}

.compare-image canvas {
    max-width: 100%;
    height: auto;
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-lg);
}

.compare-slider {
    width: 4px;
    height: 60%;
    background: var(--primary);
    border-radius: var(--radius-full);
    position: relative;
    cursor: ew-resize;
}

.slider-handle {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 24px;
    height: 24px;
    background: var(--primary);
    border: 3px solid var(--bg-panel);
    border-radius: 50%;
    box-shadow: var(--shadow-md);
}

/* Grid View */
.preview-grid {
    width: 100%;
    height: 100%;
}

.grid-container {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
    gap: var(--spacing-md);
    padding: var(--spacing-md);
}

.grid-item {
    position: relative;
    border-radius: var(--radius-md);
    overflow: hidden;
    background: var(--bg-panel);
    transition: all var(--transition-fast);
    cursor: pointer;
}

.grid-item:hover {
    transform: scale(1.05);
    box-shadow: var(--shadow-lg);
}

.grid-item img {
    width: 100%;
    height: 150px;
    object-fit: cover;
}

.grid-item-info {
    padding: var(--spacing-sm);
    font-size: var(--font-size-xs);
    color: var(--text-secondary);
}

.grid-item-actions {
    position: absolute;
    top: var(--spacing-sm);
    right: var(--spacing-sm);
    display: flex;
    gap: var(--spacing-xs);
    opacity: 0;
    transition: opacity var(--transition-fast);
}

.grid-item:hover .grid-item-actions {
    opacity: 1;
}

/* Presets Grid */
.presets-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: var(--spacing-sm);
    margin-top: var(--spacing-lg);
}

.preset-item {
    padding: var(--spacing-md);
    background: var(--bg-card);
    border-radius: var(--radius-md);
    border: 1px solid var(--border);
    cursor: pointer;
    transition: all var(--transition-fast);
}

.preset-item:hover {
    background: var(--bg-hover);
    border-color: var(--primary);
}

.preset-name {
    font-weight: var(--font-weight-semibold);
    margin-bottom: var(--spacing-xs);
}

.preset-description {
    font-size: var(--font-size-xs);
    color: var(--text-muted);
}

.preset-actions {
    margin-bottom: var(--spacing-lg);
}

/* Buttons */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-sm);
    padding: var(--spacing-sm) var(--spacing-lg);
    font-size: var(--font-size-sm);
    font-weight: var(--font-weight-semibold);
    border-radius: var(--radius-md);
    border: none;
    cursor: pointer;
    transition: all var(--transition-fast);
    position: relative;
    overflow: hidden;
}

.btn-primary {
    background: linear-gradient(135deg, var(--primary), var(--primary-dark));
    color: white;
    box-shadow: 0 4px 14px rgba(var(--primary-rgb), 0.25);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(var(--primary-rgb), 0.35);
}

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

.btn-ghost {
    background: transparent;
    color: var(--text-secondary);
}

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

.btn-block {
    width: 100%;
}

.btn-text {
    display: inline-block;
}

@media (max-width: 768px) {
    .btn-text {
        display: none;
    }
}

/* Modal */
.modal {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0,0,0,0.6);
    backdrop-filter: blur(4px);
    z-index: 100;
    padding: var(--spacing-lg);
}

.modal.active {
    display: flex;
    align-items: center;
    justify-content: center;
}

.modal-content {
    background: var(--bg-card);
    border-radius: var(--radius-xl);
    padding: var(--spacing-xl);
    max-width: 500px;
    width: 100%;
    box-shadow: var(--shadow-xl);
}

.modal-header {
    margin-bottom: var(--spacing-lg);
}

.modal-title {
    font-size: var(--font-size-xl);
    font-weight: var(--font-weight-bold);
}

.modal-body {
    margin-bottom: var(--spacing-lg);
}

.modal-footer {
    display: flex;
    gap: var(--spacing-md);
    justify-content: flex-end;
}

/* Toast */
.toast-container {
    position: fixed;
    bottom: var(--spacing-lg);
    right: var(--spacing-lg);
    z-index: 200;
    pointer-events: none;
}

.toast {
    background: var(--bg-card);
    border-radius: var(--radius-md);
    padding: var(--spacing-md) var(--spacing-lg);
    margin-top: var(--spacing-md);
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
    box-shadow: var(--shadow-xl);
    border-left: 4px solid var(--primary);
    transform: translateX(400px);
    opacity: 0;
    transition: all var(--transition-base);
    pointer-events: all;
}

.toast.show {
    transform: translateX(0);
    opacity: 1;
}

.toast.success {
    border-left-color: var(--success);
}

.toast.error {
    border-left-color: var(--error);
}

.toast.warning {
    border-left-color: var(--warning);
}

/* Responsive */
@media (max-width: 1024px) {
    .control-panels {
        width: 280px;
    }
}

@media (max-width: 768px) {
    .sidebar {
        position: fixed;
        left: -100%;
        z-index: 100;
        transition: left var(--transition-base);
    }
    
    .sidebar.mobile-open {
        left: 0;
    }
    
    .control-panels {
        position: fixed;
        left: -100%;
        z-index: 90;
        height: calc(100% - var(--header-height));
        transition: left var(--transition-base);
    }
    
    .control-panels.mobile-open {
        left: 0;
    }
    
    .content-wrapper {
        flex-direction: column;
    }
    
    .preview-area {
        width: 100%;
    }
}