/* ============================================
   SVG Editor - Modern Stylesheet
   With Dark Mode Support
   Purple Theme
   ============================================ */

/* CSS Variables - Light Mode (Default) */
:root {
    --transition-speed: 0.25s;
    
    /* Primary Colors - Purple Theme */
    --primary: #8B5CF6;
    --primary-light: #EDE9FE;
    --primary-dark: #7C3AED;
    --accent: #A78BFA;
    --success: #10B981;
    --success-light: #D1FAE5;
    --warning: #F59E0B;
    --danger: #EF4444;
    --purple: #8B5CF6;
    --purple-light: #EDE9FE;
    --teal: #14B8A6;
    --teal-light: #CCFBF1;
    --orange: #F97316;
    --blue: #3B82F6;
    --blue-light: #DBEAFE;
    --red: #EF4444;
    --red-light: #FEE2E2;
    --green: #10B981;
    --green-light: #D1FAE5;
    
    /* Background Colors */
    --bg: #f8fafc;
    --bg-elevated: #ffffff;
    --bg-secondary: #f1f5f9;
    --bg-canvas: #e2e8f0;
    
    /* Text Colors */
    --text: #1e293b;
    --text-secondary: #64748b;
    --text-muted: #94a3b8;
    
    /* Border Colors */
    --border: #e2e8f0;
    --border-light: #f1f5f9;
    
    /* Shadows */
    --shadow-sm: 0 1px 3px rgba(0,0,0,0.1);
    --shadow-md: 0 4px 6px -1px rgba(0,0,0,0.1);
    --shadow-lg: 0 10px 15px -3px rgba(0,0,0,0.1);
    --shadow-xl: 0 20px 25px -5px rgba(0,0,0,0.1);
    
    /* Radius */
    --radius-sm: 6px;
    --radius-md: 12px;
    --radius-lg: 16px;
    --radius-xl: 24px;
    --radius-full: 9999px;
    
    /* Code editor */
    --code-bg: #1e1e1e;
    --code-text: #d4d4d4;
    
    /* Upload area */
    --upload-bg: linear-gradient(135deg, #fafafa 0%, #f5f5f5 100%);
    --upload-hover-bg: linear-gradient(135deg, #faf5ff 0%, #ede9fe 100%);
    
    /* Checkerboard for transparency */
    --checker-light: #ffffff;
    --checker-dark: #e5e7eb;
    
    /* Scrollbar */
    --scrollbar-track: var(--bg);
    --scrollbar-thumb: var(--text-muted);
    --scrollbar-thumb-hover: var(--text-secondary);
}

/* Dark Mode Colors */
[data-theme="dark"] {
    --primary: #A78BFA;
    --primary-light: rgba(167, 139, 250, 0.15);
    --primary-dark: #8B5CF6;
    --accent: #C4B5FD;
    --success: #4ade80;
    --success-light: rgba(74, 222, 128, 0.15);
    --warning: #fbbf24;
    --danger: #f87171;
    --purple: #A78BFA;
    --purple-light: rgba(167, 139, 250, 0.15);
    --teal: #2dd4bf;
    --teal-light: rgba(45, 212, 191, 0.15);
    --blue: #60a5fa;
    --blue-light: rgba(96, 165, 250, 0.15);
    --red: #f87171;
    --red-light: rgba(248, 113, 113, 0.15);
    --green: #4ade80;
    --green-light: rgba(74, 222, 128, 0.15);
    
    /* Background Colors */
    --bg: #0f172a;
    --bg-elevated: #1e293b;
    --bg-secondary: #334155;
    --bg-canvas: #1e293b;
    
    /* Text Colors */
    --text: #f1f5f9;
    --text-secondary: #94a3b8;
    --text-muted: #64748b;
    
    /* Border Colors */
    --border: #334155;
    --border-light: #475569;
    
    /* Shadows */
    --shadow-sm: 0 1px 3px rgba(0,0,0,0.3);
    --shadow-md: 0 4px 6px -1px rgba(0,0,0,0.4);
    --shadow-lg: 0 10px 15px -3px rgba(0,0,0,0.4);
    --shadow-xl: 0 20px 25px -5px rgba(0,0,0,0.5);
    
    /* Code editor */
    --code-bg: #0d1117;
    --code-text: #c9d1d9;
    
    /* Upload area */
    --upload-bg: linear-gradient(135deg, #1e293b 0%, #334155 100%);
    --upload-hover-bg: linear-gradient(135deg, rgba(139, 92, 246, 0.1) 0%, rgba(139, 92, 246, 0.2) 100%);
    
    /* Checkerboard */
    --checker-light: #374151;
    --checker-dark: #1f2937;
    
    /* Scrollbar */
    --scrollbar-track: var(--bg-elevated);
    --scrollbar-thumb: var(--text-muted);
    --scrollbar-thumb-hover: var(--text-secondary);
}

/* Base */
* {
    box-sizing: border-box;
}

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    background: var(--bg);
    color: var(--text);
    line-height: 1.6;
    margin: 0;
    padding: 0;
    transition: background-color var(--transition-speed), color var(--transition-speed);
}

/* Container */
.tool-container {
    max-width: 1000px;
    margin: 0 auto;
    padding: 2rem;
}

/* Header */
.tool-header {
    text-align: center;
    margin-bottom: 2rem;
}

.tool-title-row {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 1rem;
    margin-bottom: 1rem;
}

.tool-icon-inline {
    width: 48px;
    height: 48px;
    flex-shrink: 0;
    color: var(--primary);
}

.tool-title {
    font-size: clamp(2rem, 5vw, 3rem);
    font-weight: 700;
    margin: 0;
    background: linear-gradient(135deg, var(--primary), var(--accent));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    letter-spacing: -0.02em;
}

.tool-description {
    font-size: 1.15rem;
    color: var(--text-secondary);
    max-width: 600px;
    margin: 0 auto;
    line-height: 1.7;
}

/* Main Tool Area */
.tool-main {
    background: var(--bg-elevated);
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow-xl);
    overflow: hidden;
    border: 1px solid var(--border);
    transition: background-color var(--transition-speed), border-color var(--transition-speed);
}

/* Upload Section */
.upload-section {
    padding: 3rem;
}

.upload-area {
    border: 2px dashed var(--border);
    border-radius: var(--radius-lg);
    padding: 4rem 2rem;
    text-align: center;
    cursor: pointer;
    transition: all 0.3s ease;
    background: var(--upload-bg);
    position: relative;
    overflow: hidden;
}

.upload-area::before {
    content: '';
    position: absolute;
    inset: 0;
    background: linear-gradient(135deg, rgba(139, 92, 246, 0.05), rgba(167, 139, 250, 0.05));
    opacity: 0;
    transition: opacity 0.3s ease;
}

.upload-area:hover,
.upload-area.dragover,
.upload-area.active {
    border-color: var(--primary);
    background: var(--upload-hover-bg);
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
}

.upload-area:hover::before,
.upload-area.dragover::before,
.upload-area.active::before {
    opacity: 1;
}

.upload-content {
    position: relative;
    z-index: 1;
}

.upload-icon {
    color: var(--primary);
    margin-bottom: 1.5rem;
    transition: transform 0.3s ease;
}

.upload-area:hover .upload-icon {
    transform: translateY(-5px);
}

.upload-title {
    font-size: 1.5rem;
    font-weight: 600;
    color: var(--text);
    margin: 0 0 0.5rem;
}

.upload-subtitle {
    color: var(--text-secondary);
    margin: 0 0 1rem;
    font-size: 1rem;
}

.upload-hint {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    background: var(--bg);
    color: var(--text-muted);
    padding: 0.5rem 1rem;
    border-radius: var(--radius-full);
    font-size: 0.875rem;
    transition: background-color var(--transition-speed);
}

.file-types {
    display: flex;
    gap: 0.5rem;
    justify-content: center;
    flex-wrap: wrap;
    margin-bottom: 1rem;
}

.file-type-badge {
    background: var(--primary-light);
    color: var(--primary);
    padding: 0.35rem 0.85rem;
    border-radius: var(--radius-full);
    font-size: 0.8rem;
    font-weight: 600;
}

/* Paste Option */
.paste-option {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 1rem;
    margin-top: 1.5rem;
    padding-top: 1.5rem;
    border-top: 1px solid var(--border);
}

.divider-text {
    color: var(--text-muted);
    font-size: 0.9rem;
}

.btn-outline {
    background: transparent;
    border: 1px solid var(--border);
    color: var(--text-secondary);
}

.btn-outline:hover {
    background: var(--bg-secondary);
    border-color: var(--primary);
    color: var(--primary);
}

/* Progress Container */
.progress-container {
    padding: 1.5rem 2rem;
    background: var(--bg-secondary);
    border-bottom: 1px solid var(--border);
    transition: background-color var(--transition-speed), border-color var(--transition-speed);
}

.progress-bar-wrapper {
    height: 8px;
    background: var(--bg);
    border-radius: var(--radius-full);
    overflow: hidden;
    margin-bottom: 0.5rem;
}

.progress-bar {
    height: 100%;
    background: linear-gradient(90deg, var(--primary), var(--success));
    border-radius: var(--radius-full);
    width: 0%;
    transition: width 0.3s ease;
}

.progress-text {
    font-size: 0.875rem;
    color: var(--text-secondary);
    text-align: center;
    display: block;
}

/* Error Container */
.error-container {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    padding: 1rem 1.5rem;
    margin: 1rem 2rem;
    background: rgba(239, 68, 68, 0.1);
    border: 1px solid var(--danger);
    border-radius: var(--radius-md);
    color: var(--danger);
}

.error-container svg {
    flex-shrink: 0;
}

.error-container span {
    flex: 1;
}

.error-close {
    background: none;
    border: none;
    color: var(--danger);
    cursor: pointer;
    padding: 0.25rem;
    border-radius: var(--radius-sm);
    display: flex;
    align-items: center;
    justify-content: center;
    transition: background 0.2s ease;
}

.error-close:hover {
    background: rgba(239, 68, 68, 0.2);
}

/* Editor Section */
.editor-section {
    display: flex;
    flex-direction: column;
    height: calc(100vh - 300px);
    min-height: 600px;
}

/* Editor Toolbar */
.editor-toolbar {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 0.75rem 1rem;
    background: var(--bg-secondary);
    border-bottom: 1px solid var(--border);
    gap: 1rem;
    flex-wrap: wrap;
    transition: background-color var(--transition-speed), border-color var(--transition-speed);
}

.toolbar-left,
.toolbar-center,
.toolbar-right {
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.toolbar-divider {
    width: 1px;
    height: 24px;
    background: var(--border);
    margin: 0 0.25rem;
}

.toolbar-btn {
    width: 36px;
    height: 36px;
    display: flex;
    align-items: center;
    justify-content: center;
    border: 1px solid var(--border);
    background: var(--bg-elevated);
    border-radius: var(--radius-sm);
    cursor: pointer;
    color: var(--text-secondary);
    transition: all 0.2s ease;
}

.toolbar-btn:hover:not(:disabled) {
    background: var(--primary-light);
    color: var(--primary);
    border-color: var(--primary);
}

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

.toolbar-btn.active {
    background: var(--primary-light);
    color: var(--primary);
    border-color: var(--primary);
}

.toolbar-separator {
    width: 1px;
    height: 24px;
    background: var(--border);
    margin: 0 0.25rem;
}

.zoom-level {
    font-size: 0.85rem;
    font-weight: 600;
    color: var(--text);
    min-width: 50px;
    text-align: center;
}

.view-toggle {
    display: flex;
    background: var(--bg);
    border-radius: var(--radius-full);
    padding: 3px;
    border: 1px solid var(--border);
    transition: background-color var(--transition-speed), border-color var(--transition-speed);
}

.view-toggle button {
    display: flex;
    align-items: center;
    gap: 0.35rem;
    padding: 0.4rem 0.85rem;
    border: none;
    background: transparent;
    color: var(--text-secondary);
    font-size: 0.8rem;
    font-weight: 500;
    cursor: pointer;
    border-radius: var(--radius-full);
    transition: all 0.2s ease;
    white-space: nowrap;
}

.view-toggle button:hover {
    color: var(--text);
}

.view-toggle button.active {
    background: var(--primary);
    color: white;
    box-shadow: var(--shadow-sm);
}

/* Editor Main */
.editor-main {
    display: flex;
    flex: 1;
    overflow: hidden;
}

/* Panels */
.editor-panel {
    background: var(--bg-elevated);
    border: 1px solid var(--border);
    display: flex;
    flex-direction: column;
    transition: width 0.3s ease, background-color var(--transition-speed), border-color var(--transition-speed);
}

.panel-left {
    width: 240px;
    border-right: 1px solid var(--border);
    border-left: none;
    border-top: none;
    border-bottom: none;
}

.panel-right {
    width: 280px;
    border-left: 1px solid var(--border);
    border-right: none;
    border-top: none;
    border-bottom: none;
}

.panel-left.collapsed {
    width: 0;
    min-width: 0;
    padding: 0;
    overflow: hidden;
    border: none;
}

.panel-right.collapsed {
    width: 0;
    min-width: 0;
    padding: 0;
    overflow: hidden;
    border: none;
}

.panel-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 0.75rem 1rem;
    background: var(--bg-secondary);
    border-bottom: 1px solid var(--border);
    transition: background-color var(--transition-speed), border-color var(--transition-speed);
}

.panel-header h3 {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-size: 0.85rem;
    font-weight: 600;
    margin: 0;
    color: var(--text);
}

.panel-header h3 svg {
    color: var(--primary);
}

.panel-toggle {
    width: 28px;
    height: 28px;
    display: flex;
    align-items: center;
    justify-content: center;
    border: none;
    background: transparent;
    color: var(--text-muted);
    cursor: pointer;
    border-radius: var(--radius-sm);
    transition: all 0.2s ease;
}

.panel-toggle:hover {
    background: var(--bg);
    color: var(--text);
}

.panel-content {
    flex: 1;
    overflow-y: auto;
    padding: 1rem;
}

/* Layers List */
.layers-list {
    display: flex;
    flex-direction: column;
    gap: 4px;
}

.layer-item {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.5rem 0.75rem;
    background: var(--bg);
    border: 1px solid transparent;
    border-radius: var(--radius-sm);
    cursor: pointer;
    transition: all 0.2s ease;
    font-size: 0.85rem;
    color: var(--text-secondary);
}

.layer-item:hover {
    background: var(--bg-secondary);
    color: var(--text);
}

.layer-item.selected {
    background: var(--primary-light);
    border-color: var(--primary);
    color: var(--primary);
}

.layer-icon {
    width: 20px;
    height: 20px;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
}

.layer-icon svg {
    width: 16px;
    height: 16px;
}

.layer-name {
    flex: 1;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.layer-color {
    width: 16px;
    height: 16px;
    border-radius: 4px;
    border: 1px solid var(--border);
    flex-shrink: 0;
}

/* Color Presets Section */
.color-presets-section {
    margin-top: 1rem;
    padding-top: 1rem;
    border-top: 1px solid var(--border);
}

.presets-header {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-size: 0.75rem;
    font-weight: 600;
    color: var(--text-muted);
    text-transform: uppercase;
    letter-spacing: 0.05em;
    margin-bottom: 0.75rem;
}

.presets-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 0.5rem;
}

.preset-btn {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.5rem;
    background: var(--bg);
    border: 1px solid var(--border);
    border-radius: var(--radius-sm);
    cursor: pointer;
    transition: all 0.15s ease;
    text-align: left;
}

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

.preset-colors {
    display: flex;
    gap: 2px;
    flex-shrink: 0;
}

.preset-colors span {
    width: 14px;
    height: 14px;
    border-radius: 3px;
    border: 1px solid rgba(0,0,0,0.1);
}

.preset-name {
    font-size: 0.75rem;
    font-weight: 500;
    color: var(--text);
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

/* Canvas Area */
.canvas-wrapper {
    flex: 1;
    display: flex;
    flex-direction: column;
    overflow: hidden;
    position: relative;
}

.canvas-container {
    flex: 1;
    overflow: auto;
    background: var(--bg-canvas);
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 2rem;
    transition: background-color var(--transition-speed);
}

.canvas-container.checkerboard {
    background-image: 
        linear-gradient(45deg, var(--checker-dark) 25%, transparent 25%),
        linear-gradient(-45deg, var(--checker-dark) 25%, transparent 25%),
        linear-gradient(45deg, transparent 75%, var(--checker-dark) 75%),
        linear-gradient(-45deg, transparent 75%, var(--checker-dark) 75%);
    background-size: 20px 20px;
    background-position: 0 0, 0 10px, 10px -10px, -10px 0px;
    background-color: var(--checker-light);
}

.svg-canvas {
    background: var(--bg-elevated);
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-lg);
    padding: 1rem;
    min-width: 200px;
    min-height: 200px;
    max-width: 100%;
    max-height: 100%;
    display: flex;
    align-items: center;
    justify-content: center;
    position: relative;
    transition: background-color var(--transition-speed);
}

.svg-canvas svg {
    max-width: 100%;
    max-height: 100%;
    transition: transform 0.2s ease;
}

/* Selection highlight */
.svg-canvas .selected-element {
    outline: 2px solid var(--primary);
    outline-offset: 2px;
}

/* Code Editor */
.code-editor-container {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: var(--code-bg);
    display: flex;
    flex-direction: column;
    z-index: 10;
}

.canvas-wrapper.split .code-editor-container {
    position: relative;
    flex: 1;
    border-top: 1px solid var(--border);
}

.canvas-wrapper.split .canvas-container {
    flex: 1;
}

.code-toolbar {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 0.5rem 1rem;
    background: rgba(255,255,255,0.05);
    border-bottom: 1px solid rgba(255,255,255,0.1);
}

.code-label {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-size: 0.8rem;
    color: var(--code-text);
    opacity: 0.7;
}

.code-actions {
    display: flex;
    gap: 0.5rem;
}

.code-btn {
    width: 28px;
    height: 28px;
    display: flex;
    align-items: center;
    justify-content: center;
    border: none;
    background: rgba(255,255,255,0.1);
    color: var(--code-text);
    border-radius: var(--radius-sm);
    cursor: pointer;
    transition: all 0.2s ease;
}

.code-btn:hover {
    background: rgba(255,255,255,0.2);
}

.code-editor {
    flex: 1;
    width: 100%;
    padding: 1rem;
    background: transparent;
    color: var(--code-text);
    border: none;
    resize: none;
    font-family: 'JetBrains Mono', 'Fira Code', 'Monaco', 'Consolas', monospace;
    font-size: 0.85rem;
    line-height: 1.6;
    outline: none;
}

.btn-apply-code {
    margin: 1rem;
    margin-top: 0;
}

/* No Selection State */
.no-selection {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    padding: 2rem;
    text-align: center;
    color: var(--text-muted);
    min-height: 200px;
}

.no-selection svg {
    opacity: 0.5;
    margin-bottom: 1rem;
}

.no-selection p {
    margin: 0;
    font-size: 0.9rem;
}

/* Properties Form */
.properties-form {
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

.prop-section {
    background: var(--bg);
    border-radius: var(--radius-md);
    padding: 1rem;
    transition: background-color var(--transition-speed);
}

.prop-section-header {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-size: 0.8rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    color: var(--text-muted);
    margin-bottom: 0.75rem;
    padding-bottom: 0.5rem;
    border-bottom: 1px solid var(--border);
}

.prop-section-header svg {
    color: var(--primary);
}

.prop-row {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    margin-bottom: 0.75rem;
}

.prop-row:last-child {
    margin-bottom: 0;
}

.prop-label {
    font-size: 0.8rem;
    color: var(--text-secondary);
    min-width: 60px;
}

.prop-value {
    font-size: 0.85rem;
    color: var(--text);
    font-weight: 500;
}

.prop-input {
    flex: 1;
    padding: 0.5rem 0.75rem;
    border: 1px solid var(--border);
    border-radius: var(--radius-sm);
    background: var(--bg-elevated);
    color: var(--text);
    font-size: 0.85rem;
    transition: border-color 0.2s ease, background-color var(--transition-speed);
}

.prop-input:focus {
    outline: none;
    border-color: var(--primary);
}

.prop-select {
    flex: 1;
    padding: 0.5rem 0.75rem;
    border: 1px solid var(--border);
    border-radius: var(--radius-sm);
    background: var(--bg-elevated);
    color: var(--text);
    font-size: 0.85rem;
    cursor: pointer;
    transition: border-color 0.2s ease, background-color var(--transition-speed);
}

.prop-select:focus {
    outline: none;
    border-color: var(--primary);
}

/* Color Input Group */
.color-input-group {
    display: flex;
    gap: 0.5rem;
    flex: 1;
}

.color-swatches {
    display: flex;
    flex-wrap: wrap;
    gap: 6px;
    flex: 1;
}

.color-swatch {
    width: 22px;
    height: 22px;
    border-radius: 4px;
    border: 2px solid var(--border);
    cursor: pointer;
    transition: all 0.15s ease;
    padding: 0;
    background-color: var(--bg);
}

.color-swatch:hover {
    transform: scale(1.15);
    border-color: var(--primary);
}

.color-swatch[data-color="#000000"] { background-color: #000000; }
.color-swatch[data-color="#FFFFFF"] { background-color: #FFFFFF; }
.color-swatch[data-color="#6B7280"] { background-color: #6B7280; }
.color-swatch[data-color="#EF4444"] { background-color: #EF4444; }
.color-swatch[data-color="#F97316"] { background-color: #F97316; }
.color-swatch[data-color="#EAB308"] { background-color: #EAB308; }
.color-swatch[data-color="#22C55E"] { background-color: #22C55E; }
.color-swatch[data-color="#14B8A6"] { background-color: #14B8A6; }
.color-swatch[data-color="#3B82F6"] { background-color: #3B82F6; }
.color-swatch[data-color="#8B5CF6"] { background-color: #8B5CF6; }
.color-swatch[data-color="#EC4899"] { background-color: #EC4899; }
.color-swatch[data-color="#1E293B"] { background-color: #1E293B; }

.color-picker {
    width: 36px;
    height: 36px;
    border: 1px solid var(--border);
    border-radius: var(--radius-sm);
    cursor: pointer;
    padding: 2px;
    background: var(--bg-elevated);
    transition: border-color 0.2s ease;
}

.color-picker::-webkit-color-swatch-wrapper {
    padding: 0;
}

.color-picker::-webkit-color-swatch {
    border: none;
    border-radius: 4px;
}

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

.color-text {
    flex: 1;
    text-transform: uppercase;
    font-family: 'JetBrains Mono', monospace;
    font-size: 0.8rem;
}

/* Number Input Group */
.number-input-group {
    display: flex;
    align-items: center;
    gap: 0.25rem;
    flex: 1;
}

.number-input {
    width: 70px;
    text-align: center;
}

.input-unit {
    font-size: 0.8rem;
    color: var(--text-muted);
}

/* Slider Group */
.slider-group {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    flex: 1;
}

.prop-slider {
    flex: 1;
    height: 6px;
    -webkit-appearance: none;
    appearance: none;
    background: var(--bg-secondary);
    border-radius: var(--radius-full);
    cursor: pointer;
}

.prop-slider::-webkit-slider-thumb {
    -webkit-appearance: none;
    appearance: none;
    width: 16px;
    height: 16px;
    background: var(--primary);
    border-radius: 50%;
    cursor: pointer;
    box-shadow: var(--shadow-sm);
    transition: transform 0.2s ease;
}

.prop-slider::-webkit-slider-thumb:hover {
    transform: scale(1.1);
}

.slider-value {
    font-size: 0.8rem;
    color: var(--text-secondary);
    min-width: 40px;
    text-align: right;
}

/* Checkbox */
.checkbox-label {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    cursor: pointer;
    font-size: 0.85rem;
    color: var(--text-secondary);
}

.checkbox-label input[type="checkbox"] {
    width: 16px;
    height: 16px;
    accent-color: var(--primary);
    cursor: pointer;
}

/* Global Colors Section */
.global-colors-section {
    margin-top: 1rem;
}

.section-desc {
    font-size: 0.8rem;
    color: var(--text-muted);
    margin: 0 0 0.75rem;
}

.color-palette {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
}

.color-swatch {
    width: 32px;
    height: 32px;
    border-radius: var(--radius-sm);
    border: 2px solid var(--border);
    cursor: pointer;
    transition: all 0.2s ease;
    position: relative;
}

.color-swatch:hover {
    transform: scale(1.1);
    border-color: var(--primary);
    z-index: 1;
}

.color-swatch.selected {
    border-color: var(--primary);
    box-shadow: 0 0 0 2px var(--primary-light);
}

/* Action Bar */
.action-bar {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1rem 1.5rem;
    background: var(--bg-elevated);
    border-top: 1px solid var(--border);
    gap: 1rem;
    flex-wrap: wrap;
    transition: background-color var(--transition-speed), border-color var(--transition-speed);
}

.action-info {
    display: flex;
    align-items: center;
    gap: 1rem;
}

.file-name {
    font-weight: 600;
    color: var(--text);
}

.file-size {
    font-size: 0.85rem;
    color: var(--text-muted);
}

.action-buttons {
    display: flex;
    gap: 0.75rem;
    align-items: center;
    flex-wrap: wrap;
}

.export-group {
    display: flex;
    gap: 0.5rem;
}

/* Buttons */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    padding: 0.65rem 1.25rem;
    font-size: 0.9rem;
    font-weight: 600;
    border: none;
    border-radius: var(--radius-full);
    cursor: pointer;
    transition: all 0.2s ease;
    white-space: nowrap;
}

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

.btn-primary:hover {
    background: var(--primary-dark);
    transform: translateY(-1px);
    box-shadow: var(--shadow-md);
}

.btn-secondary {
    background: var(--bg);
    color: var(--text);
    border: 1px solid var(--border);
}

.btn-secondary:hover {
    background: var(--bg-secondary);
    border-color: var(--text-muted);
}

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

.btn-success:hover {
    background: #059669;
    transform: translateY(-1px);
    box-shadow: var(--shadow-md);
}

/* Modals */
.modal-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0,0,0,0.5);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 10000;
    padding: 2rem;
}

.modal-content {
    background: var(--bg-elevated);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-xl);
    width: 100%;
    max-width: 600px;
    max-height: calc(100vh - 4rem);
    overflow: hidden;
    display: flex;
    flex-direction: column;
    animation: modalIn 0.2s ease;
}

.modal-content.modal-sm {
    max-width: 400px;
}

@keyframes modalIn {
    from {
        opacity: 0;
        transform: scale(0.95) translateY(10px);
    }
    to {
        opacity: 1;
        transform: scale(1) translateY(0);
    }
}

.modal-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1rem 1.5rem;
    border-bottom: 1px solid var(--border);
}

.modal-header h3 {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    font-size: 1.1rem;
    margin: 0;
    color: var(--text);
}

.modal-header h3 svg {
    color: var(--primary);
}

.modal-close {
    width: 36px;
    height: 36px;
    display: flex;
    align-items: center;
    justify-content: center;
    border: none;
    background: var(--bg);
    color: var(--text-muted);
    border-radius: var(--radius-sm);
    cursor: pointer;
    transition: all 0.2s ease;
}

.modal-close:hover {
    background: var(--danger);
    color: white;
}

.modal-body {
    padding: 1.5rem;
    overflow-y: auto;
}

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

/* Paste Textarea */
.paste-textarea {
    width: 100%;
    min-height: 300px;
    padding: 1rem;
    border: 1px solid var(--border);
    border-radius: var(--radius-md);
    background: var(--code-bg);
    color: var(--code-text);
    font-family: 'JetBrains Mono', monospace;
    font-size: 0.85rem;
    line-height: 1.6;
    resize: vertical;
}

.paste-textarea:focus {
    outline: none;
    border-color: var(--primary);
}

/* Color Replace Modal */
.color-replace-row {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 1.5rem;
    margin-bottom: 1.5rem;
}

.color-replace-item {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 0.5rem;
}

.color-replace-label {
    font-size: 0.8rem;
    color: var(--text-muted);
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.color-preview {
    width: 48px;
    height: 48px;
    border-radius: var(--radius-md);
    border: 2px solid var(--border);
}

.color-hex {
    font-family: 'JetBrains Mono', monospace;
    font-size: 0.85rem;
    color: var(--text-secondary);
}

.color-picker-large {
    width: 48px;
    height: 48px;
    border: 2px solid var(--border);
    border-radius: var(--radius-md);
    cursor: pointer;
    padding: 3px;
    background: var(--bg);
}

.color-picker-large::-webkit-color-swatch-wrapper {
    padding: 0;
}

.color-picker-large::-webkit-color-swatch {
    border: none;
    border-radius: 6px;
}

.color-hex-input {
    width: 80px;
    padding: 0.35rem 0.5rem;
    border: 1px solid var(--border);
    border-radius: var(--radius-sm);
    background: var(--bg);
    color: var(--text);
    font-family: 'JetBrains Mono', monospace;
    font-size: 0.85rem;
    text-align: center;
    text-transform: uppercase;
}

.color-replace-info {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    color: var(--text-muted);
    font-size: 0.9rem;
}

/* Export Modal */
.export-option {
    margin-bottom: 1.25rem;
}

.export-option:last-child {
    margin-bottom: 0;
}

.export-label {
    display: block;
    font-size: 0.85rem;
    font-weight: 600;
    color: var(--text);
    margin-bottom: 0.5rem;
}

.export-format-group {
    display: flex;
    gap: 0.5rem;
}

.format-btn {
    flex: 1;
    padding: 0.75rem;
    border: 1px solid var(--border);
    background: var(--bg);
    color: var(--text-secondary);
    border-radius: var(--radius-md);
    font-weight: 600;
    cursor: pointer;
    transition: all 0.2s ease;
}

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

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

.export-size-group {
    display: flex;
    flex-direction: column;
    gap: 0.75rem;
}

.size-input-row {
    display: flex;
    align-items: center;
    gap: 0.75rem;
}

.size-input-item {
    flex: 1;
    display: flex;
    flex-direction: column;
    gap: 0.25rem;
}

.size-input-item span {
    font-size: 0.8rem;
    color: var(--text-muted);
}

.link-btn {
    width: 36px;
    height: 36px;
    display: flex;
    align-items: center;
    justify-content: center;
    border: 1px solid var(--border);
    background: var(--bg);
    color: var(--primary);
    border-radius: var(--radius-sm);
    cursor: pointer;
    transition: all 0.2s ease;
    margin-top: 1rem;
}

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

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

.size-presets {
    display: flex;
    gap: 0.5rem;
}

.preset-btn {
    flex: 1;
    padding: 0.5rem;
    border: 1px solid var(--border);
    background: var(--bg);
    color: var(--text-secondary);
    border-radius: var(--radius-sm);
    font-size: 0.85rem;
    cursor: pointer;
    transition: all 0.2s ease;
}

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

.preset-btn.active {
    background: var(--primary-light);
    border-color: var(--primary);
    color: var(--primary);
}

/* Related Tools */
.related-tools {
    display: flex;
    align-items: center;
    gap: 1rem;
    margin-top: 2rem;
    padding: 1.25rem 1.5rem;
    background: var(--bg-elevated);
    border-radius: var(--radius-lg);
    border: 1px solid var(--border);
    flex-wrap: wrap;
    transition: background-color var(--transition-speed), border-color var(--transition-speed);
}

.related-label {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-weight: 600;
    color: var(--text);
    white-space: nowrap;
}

.related-label svg {
    color: var(--primary);
}

.related-links {
    display: flex;
    gap: 0.75rem;
    flex-wrap: wrap;
    flex: 1;
}

.tool-link {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.5rem 1rem;
    background: var(--bg);
    border: 1px solid var(--border);
    border-radius: var(--radius-full);
    color: var(--text-secondary);
    font-size: 0.875rem;
    font-weight: 500;
    text-decoration: none;
    transition: all 0.2s ease;
}

.tool-link:hover {
    background: var(--primary-light);
    border-color: var(--primary);
    color: var(--primary);
}

/* Info Sections */
.info-sections {
    margin-top: 2rem;
}

.info-card {
    background: var(--bg-elevated);
    border-radius: var(--radius-lg);
    padding: 2rem;
    margin-bottom: 1.5rem;
    border: 1px solid var(--border);
    transition: background-color var(--transition-speed), border-color var(--transition-speed);
}

.info-card h2 {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    font-size: 1.5rem;
    margin: 0 0 1.5rem;
    color: var(--text);
}

.info-card h2 svg {
    color: var(--primary);
}

/* Steps List */
.steps-list {
    list-style: none;
    padding: 0;
    margin: 0;
    counter-reset: step;
}

.steps-list li {
    position: relative;
    padding-left: 3.5rem;
    padding-bottom: 1.25rem;
    counter-increment: step;
    color: var(--text-secondary);
    line-height: 1.7;
    font-size: 0.95rem;
}

.steps-list li:last-child {
    padding-bottom: 0;
}

.steps-list li:not(:last-child)::after {
    content: '';
    position: absolute;
    left: calc(1rem - 1px);
    top: 2rem;
    bottom: 0;
    width: 2px;
    background: linear-gradient(to bottom, var(--primary-light), var(--success-light));
}

.steps-list li::before {
    content: counter(step);
    position: absolute;
    left: 0;
    top: 0;
    width: 2rem;
    height: 2rem;
    background: var(--primary);
    color: white;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 700;
    font-size: 0.875rem;
    z-index: 1;
    box-shadow: 0 2px 4px rgba(139, 92, 246, 0.3);
}

.steps-list li strong {
    color: var(--text);
}

/* Features Grid */
.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 1.5rem;
}

.feature-item {
    display: flex;
    gap: 1rem;
    padding: 1.5rem;
    background: var(--bg);
    border-radius: var(--radius-md);
    transition: background-color var(--transition-speed);
}

.feature-icon {
    width: 48px;
    height: 48px;
    border-radius: var(--radius-md);
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
}

.feature-icon.purple { background: rgba(139, 92, 246, 0.15); color: #8b5cf6; }
.feature-icon.teal { background: rgba(20, 184, 166, 0.15); color: #14b8a6; }
.feature-icon.green { background: rgba(16, 185, 129, 0.15); color: #10b981; }
.feature-icon.orange { background: rgba(249, 115, 22, 0.15); color: #f97316; }
.feature-icon.blue { background: rgba(59, 130, 246, 0.15); color: #3b82f6; }
.feature-icon.red { background: rgba(239, 68, 68, 0.15); color: #ef4444; }

.feature-content h3 {
    margin: 0 0 0.5rem;
    font-size: 1.1rem;
    color: var(--text);
}

.feature-content p {
    margin: 0;
    color: var(--text-secondary);
    font-size: 0.95rem;
    line-height: 1.5;
}

/* FAQ */
.faq-list {
    display: flex;
    flex-direction: column;
    gap: 0.75rem;
}

.faq-item {
    background: var(--bg);
    border-radius: var(--radius-md);
    overflow: hidden;
    transition: background-color var(--transition-speed);
}

.faq-question {
    width: 100%;
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1.25rem;
    background: transparent;
    border: none;
    cursor: pointer;
    font-size: 1rem;
    font-weight: 500;
    color: var(--text);
    text-align: left;
    transition: background 0.2s ease;
}

.faq-question:hover {
    background: var(--bg-secondary);
}

.faq-question svg {
    color: var(--text-muted);
    flex-shrink: 0;
    transition: transform 0.3s ease;
}

.faq-item.open .faq-question svg {
    transform: rotate(180deg);
}

.faq-answer {
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.3s ease;
}

.faq-item.open .faq-answer {
    max-height: 500px;
}

.faq-answer p {
    padding: 0 1.25rem 1.25rem;
    margin: 0;
    color: var(--text-secondary);
    line-height: 1.7;
}

.faq-answer a {
    color: var(--primary);
    text-decoration: none;
}

.faq-answer a:hover {
    text-decoration: underline;
}

/* Toast */
.toast-notification {
    position: fixed;
    bottom: 2rem;
    left: 50%;
    transform: translateX(-50%) translateY(100px);
    display: flex;
    align-items: center;
    gap: 0.75rem;
    padding: 1rem 1.5rem;
    background: var(--bg-elevated);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-xl);
    z-index: 10001;
    opacity: 0;
    transition: all 0.3s ease;
}

.toast-notification.show {
    transform: translateX(-50%) translateY(0);
    opacity: 1;
}

.toast-notification.success svg {
    color: var(--success);
}

.toast-notification.error svg {
    color: var(--danger);
}

/* Responsive */
@media (max-width: 1200px) {
    .panel-left {
        width: 200px;
    }
    
    .panel-right {
        width: 250px;
    }
}

@media (max-width: 992px) {
    .editor-main {
        flex-direction: column;
    }
    
    .panel-left,
    .panel-right {
        width: 100%;
        max-height: 200px;
        border: none;
        border-bottom: 1px solid var(--border);
    }
    
    .panel-right {
        border-bottom: none;
        border-top: 1px solid var(--border);
        max-height: 300px;
    }
    
    .canvas-wrapper {
        min-height: 300px;
    }
    
    .editor-toolbar {
        flex-direction: column;
        gap: 0.75rem;
    }
    
    .toolbar-left,
    .toolbar-center,
    .toolbar-right {
        width: 100%;
        justify-content: center;
    }
}

@media (max-width: 768px) {
    .tool-container {
        padding: 1rem;
    }
    
    .upload-section {
        padding: 2rem 1.5rem;
    }
    
    .upload-area {
        padding: 3rem 1.5rem;
    }
    
    .action-bar {
        flex-direction: column;
        gap: 1rem;
    }
    
    .action-info,
    .action-buttons {
        width: 100%;
        justify-content: center;
    }
    
    .export-group {
        width: 100%;
    }
    
    .export-group .btn {
        flex: 1;
    }
    
    .related-tools {
        flex-direction: column;
        align-items: flex-start;
    }
    
    .related-links {
        width: 100%;
    }
    
    .tool-link {
        flex: 1;
        min-width: calc(50% - 0.375rem);
        justify-content: center;
    }
    
    .features-grid {
        grid-template-columns: 1fr;
    }
    
    .modal-content {
        margin: 1rem;
    }
}

@media (max-width: 480px) {
    .tool-title {
        font-size: 1.75rem;
    }
    
    .tool-title-row {
        flex-direction: column;
        gap: 0.5rem;
    }
    
    .view-toggle {
        width: 100%;
    }
    
    .view-toggle button {
        flex: 1;
        justify-content: center;
    }
    
    .feature-item {
        flex-direction: column;
    }
    
    .export-group {
        flex-direction: column;
    }
    
    .color-replace-row {
        flex-direction: column;
        gap: 1rem;
    }
    
    .size-input-row {
        flex-direction: column;
    }
    
    .link-btn {
        margin-top: 0;
        width: 100%;
    }
}

/* Print */
@media print {
    .editor-toolbar,
    .action-bar,
    .panel-left,
    .panel-right,
    .info-sections,
    .related-tools {
        display: none !important;
    }
}

/* Reduced Motion */
@media (prefers-reduced-motion: reduce) {
    *,
    *::before,
    *::after {
        animation-duration: 0.01ms !important;
        transition-duration: 0.01ms !important;
    }
}

/* Scrollbar */
::-webkit-scrollbar {
    width: 8px;
    height: 8px;
}

::-webkit-scrollbar-track {
    background: var(--scrollbar-track);
    border-radius: 4px;
}

::-webkit-scrollbar-thumb {
    background: var(--scrollbar-thumb);
    border-radius: 4px;
}

::-webkit-scrollbar-thumb:hover {
    background: var(--scrollbar-thumb-hover);
}

/* Selection */
::selection {
    background: rgba(139, 92, 246, 0.2);
    color: var(--text);
}

[data-theme="dark"] ::selection {
    background: rgba(167, 139, 250, 0.3);
}