/* ─── Standalone fallbacks (overridden by whoisneha site variables) ──────── */
:root {
    --spacing-xs: 0.25rem;
    --spacing-sm: 0.5rem;
    --spacing-md: 1rem;
    --spacing-lg: 1.5rem;
    --spacing-xl: 2rem;
    --border-color: #e1e1e1;
    --border-radius: 4px;
    --border-radius-lg: 8px;
    --text-color: #1a1a1a;
    --text-muted: #666666;
    --orange-accent: #e77728;
    --orange-light: #f4a261;
    --transition-fast: 0.15s ease;
    --font-weight-medium: 500;
}

.color-wheel-container {
    display: flex;
    flex-direction: column;
    align-items: center;
    padding: var(--spacing-lg);
    min-height: 80vh;
}

.tool-header {
    text-align: center;
    margin-bottom: var(--spacing-xl);
}

.tool-header h1 {
    color: var(--text-color);
    margin-bottom: var(--spacing-sm);
}

.tool-header p {
    color: var(--text-muted);
    max-width: 600px;
    line-height: 1.6;
}

.wheel-workspace {
    display: grid;
    grid-template-columns: 1fr 350px;
    gap: var(--spacing-xl);
    width: 100%;
    max-width: 1200px;
}

.wheel-canvas-container {
    position: relative;
    background: rgba(255, 255, 255, 0.9);
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius-lg);
    padding: var(--spacing-lg);
    backdrop-filter: blur(5px);
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
}


.wheel-canvas {
    border-radius: var(--border-radius);
    cursor: default;
    display: block;
    margin: 0 auto;
    max-width: 100%;
    max-height: 500px;
}

.control-panel {
    background: rgba(255, 255, 255, 0.9);
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius-lg);
    padding: var(--spacing-lg);
    backdrop-filter: blur(5px);
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
    height: fit-content;
}

.control-section {
    margin-bottom: var(--spacing-lg);
}

.control-section h3 {
    color: var(--text-color);
    margin-bottom: var(--spacing-md);
    font-size: 1.1rem;
    position: relative;
}

.control-section h3::after {
    content: '';
    position: absolute;
    bottom: -var(--spacing-xs);
    left: 0;
    width: 30px;
    height: 2px;
    background-color: var(--orange-accent);
}

.technique-selector {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-xs);
}

.technique-option {
    background: none;
    border: 1px solid var(--border-color);
    padding: var(--spacing-sm);
    border-radius: var(--border-radius);
    cursor: pointer;
    transition: all var(--transition-fast);
    color: var(--text-color);
    font-size: 0.9rem;
}

.technique-option:hover,
.technique-option.active {
    background: var(--orange-accent);
    color: white;
    border-color: var(--orange-accent);
}

.layer-controls {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-md);
}

.layer-item {
    background: rgba(255, 255, 255, 0.7);
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius);
    padding: var(--spacing-md);
    transition: all var(--transition-fast);
}

.layer-item.active {
    border-color: var(--orange-accent);
    background: rgba(231, 119, 40, 0.1);
}

.layer-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: var(--spacing-sm);
}

.layer-title {
    font-weight: var(--font-weight-medium);
    color: var(--text-color);
    font-size: 0.9rem;
}

.layer-toggle {
    background: none;
    border: none;
    color: var(--text-muted);
    cursor: pointer;
    transition: color var(--transition-fast);
}

.layer-toggle:hover {
    color: var(--orange-accent);
}

.layer-controls-row {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    margin-bottom: var(--spacing-xs);
}

.layer-values {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    flex: 1;
}

.hex-display {
    font-family: 'Monaco', 'Menlo', 'Ubuntu Mono', monospace;
    font-size: 0.8rem;
    color: var(--text-muted);
    background: var(--border-color);
    padding: var(--spacing-xs) var(--spacing-sm);
    border-radius: var(--border-radius);
    text-align: center;
    letter-spacing: 0.5px;
    font-weight: var(--font-weight-medium);
    cursor: pointer;
    transition: all var(--transition-fast);
}

.hex-display:hover {
    background: var(--orange-accent);
    color: white;
}

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

.color-picker:hover {
    border-color: var(--orange-accent);
    transform: scale(1.05);
}

.opacity-slider {
    flex: 1;
    -webkit-appearance: none;
    height: 6px;
    border-radius: 3px;
    background: var(--border-color);
    outline: none;
    transition: background var(--transition-fast);
}

.opacity-slider::-webkit-slider-thumb {
    -webkit-appearance: none;
    appearance: none;
    width: 18px;
    height: 18px;
    border-radius: 50%;
    background: var(--orange-accent);
    cursor: pointer;
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.2);
}

.opacity-slider::-moz-range-thumb {
    width: 18px;
    height: 18px;
    border-radius: 50%;
    background: var(--orange-accent);
    cursor: pointer;
    border: none;
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.2);
}

.opacity-value {
    font-size: 0.8rem;
    color: var(--text-muted);
    min-width: 35px;
    text-align: right;
}

.overprint-preview {
    margin-top: var(--spacing-md);
    padding: var(--spacing-md);
    background: rgba(255, 255, 255, 0.8);
    border-radius: var(--border-radius);
    border: 1px solid var(--border-color);
}

.preview-colors {
    display: flex;
    gap: var(--spacing-xs);
    margin-bottom: var(--spacing-sm);
}

.preview-swatch {
    width: 30px;
    height: 30px;
    border-radius: var(--border-radius);
    border: 1px solid var(--border-color);
}

.preview-result {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    font-size: 0.85rem;
    color: var(--text-muted);
}

.result-swatch {
    width: 25px;
    height: 25px;
    border-radius: var(--border-radius);
    border: 1px solid var(--border-color);
}

.mixing-steps {
    margin-top: var(--spacing-sm);
    padding-top: var(--spacing-sm);
    border-top: 1px solid var(--border-color);
    font-size: 0.75rem;
}

.mixing-step {
    display: flex;
    align-items: center;
    gap: var(--spacing-xs);
    margin-bottom: var(--spacing-xs);
    color: var(--text-muted);
}

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

.action-buttons {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-sm);
}

.action-btn {
    background: var(--border-color);
    color: var(--text-color);
    border: none;
    padding: var(--spacing-sm);
    border-radius: var(--border-radius);
    cursor: pointer;
    transition: all var(--transition-fast);
    font-size: 0.9rem;
}

.action-btn:hover {
    background: var(--text-muted);
    color: white;
}

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

.action-btn.primary:hover {
    background: var(--orange-light);
    transform: translateY(-1px);
}

[data-theme="dark"] .wheel-canvas-container,
[data-theme="dark"] .control-panel {
    background: rgba(43, 43, 44, 0.9);
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.3);
}

[data-theme="dark"] .layer-item {
    background: rgba(0, 0, 0, 0.3);
}

[data-theme="dark"] .overprint-preview {
    background: rgba(0, 0, 0, 0.3);
}

@media (max-width: 1024px) {
    .wheel-workspace {
        grid-template-columns: 1fr;
        gap: var(--spacing-lg);
    }

    .control-panel {
        order: -1;
    }
}

@media (max-width: 768px) {
    .color-wheel-container {
        padding: var(--spacing-md);
        min-height: auto;
    }

    .wheel-workspace {
        gap: var(--spacing-md);
    }

    .wheel-canvas-container {
        padding: var(--spacing-md);
    }

    .wheel-canvas {
        max-height: 350px;
    }

    .control-panel {
        padding: var(--spacing-md);
    }

    .control-section {
        margin-bottom: var(--spacing-md);
    }

    .technique-selector {
        display: grid;
        grid-template-columns: 1fr 1fr;
        gap: var(--spacing-xs);
    }

    .technique-option {
        padding: var(--spacing-xs) var(--spacing-sm);
        font-size: 0.85rem;
    }

    .layer-controls-row {
        flex-wrap: wrap;
        gap: var(--spacing-xs);
    }

    .color-picker {
        width: 35px;
        height: 35px;
    }

    .layer-item {
        padding: var(--spacing-sm);
    }

    .overprint-preview {
        padding: var(--spacing-sm);
        margin-top: var(--spacing-sm);
    }

    .preview-colors {
        gap: var(--spacing-xs);
        margin-bottom: var(--spacing-xs);
    }

    .preview-swatch {
        width: 25px;
        height: 25px;
    }

    .action-buttons {
        gap: var(--spacing-xs);
    }

    .action-btn {
        padding: var(--spacing-xs) var(--spacing-sm);
        font-size: 0.85rem;
    }
}

@media (max-width: 480px) {
    .color-wheel-container {
        padding: var(--spacing-sm);
    }

    .tool-header h1 {
        font-size: 1.8rem;
    }

    .tool-header p {
        font-size: 0.9rem;
        line-height: 1.5;
    }

    .wheel-workspace {
        gap: var(--spacing-sm);
    }

    .wheel-canvas-container {
        padding: var(--spacing-sm);
    }

    .wheel-canvas {
        max-height: 280px;
    }

    .control-panel {
        padding: var(--spacing-sm);
    }

    .control-section {
        margin-bottom: var(--spacing-sm);
    }

    .control-section h3 {
        font-size: 1rem;
        margin-bottom: var(--spacing-sm);
    }

    .technique-selector {
        grid-template-columns: 1fr;
    }

    .technique-option {
        padding: var(--spacing-sm);
        font-size: 0.9rem;
        text-align: center;
    }

    .layer-item {
        padding: var(--spacing-sm);
        margin-bottom: var(--spacing-xs);
    }

    .layer-header {
        margin-bottom: var(--spacing-xs);
    }

    .layer-title {
        font-size: 0.85rem;
    }

    .layer-controls-row {
        flex-direction: column;
        gap: var(--spacing-sm);
        align-items: stretch;
    }

    .color-picker {
        width: 100%;
        height: 40px;
        max-width: 150px;
        align-self: center;
    }

    .layer-values {
        flex-direction: row;
        justify-content: space-between;
    }

    .opacity-slider {
        flex: 1;
        margin-right: var(--spacing-sm);
    }

    .opacity-value {
        text-align: center;
        min-width: 35px;
    }

    .hex-display {
        font-size: 0.75rem;
        padding: var(--spacing-xs);
    }

    .overprint-preview {
        padding: var(--spacing-sm);
        text-align: center;
    }

    .preview-colors {
        justify-content: center;
        flex-wrap: wrap;
    }

    .preview-result {
        justify-content: center;
        font-size: 0.8rem;
    }

    .result-swatch {
        width: 20px;
        height: 20px;
    }

    .action-buttons {
        display: grid;
        grid-template-columns: 1fr 1fr;
        gap: var(--spacing-xs);
    }

    .action-btn {
        padding: var(--spacing-sm);
        font-size: 0.85rem;
    }

    .registration-guides {
        display: none;
    }
}

.registration-guides {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    pointer-events: none;
    opacity: 0.3;
}

.guide-line {
    position: absolute;
    background: var(--text-muted);
    pointer-events: none;
}

.guide-horizontal {
    height: 1px;
    left: 0;
    right: 0;
    top: 50%;
}

.guide-vertical {
    width: 1px;
    top: 0;
    bottom: 0;
    left: 50%;
}

/* ─── In-app explainer ───────────────────────────────────────────────────── */
.explainer {
    margin-top: var(--spacing-md);
    max-width: 600px;
    font-size: 0.9rem;
    color: var(--text-muted);
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius);
    padding: var(--spacing-sm) var(--spacing-md);
}

.explainer summary {
    cursor: pointer;
    font-weight: var(--font-weight-medium);
    color: var(--text-color);
    padding: var(--spacing-xs) 0;
}

.explainer p {
    margin-top: var(--spacing-sm);
    line-height: 1.6;
}

.explainer p + p {
    margin-top: var(--spacing-xs);
}