:root {
    --bg-page: #f8f6f1;
    --bg-card: #ffffff;
    --bg-canvas-wrapper: #ede8e1;
    --bg-canvas: #e4ddd3;
    --text-primary: #2c2825;
    --text-secondary: #706861;
    --text-muted: #9c938a;
    --earth-clay: #8c6a56;
    --earth-clay-hover: #755542;
    --earth-clay-light: #f4eee9;
    --earth-sage: #7a8271;
    --earth-sand: #e4ddd3;
    --earth-border: #e2dad0;
    --earth-border-hover: #c8bebd;
    --font-sans: 'Plus Jakarta Sans', -apple-system, BlinkMacSystemFont, sans-serif;
    --font-mono: 'JetBrains Mono', monospace;
    --radius-sm: 6px;
    --radius-md: 12px;
    --radius-lg: 20px;
    --shadow-sm: 0 2px 8px rgba(44, 40, 37, 0.04);
    --shadow-md: 0 8px 24px rgba(44, 40, 37, 0.06);
    --shadow-lg: 0 16px 32px rgba(44, 40, 37, 0.08);
}

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

body {
    font-family: var(--font-sans);
    background-color: var(--bg-page);
    color: var(--text-primary);
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 2rem 1.5rem;
    -webkit-font-smoothing: antialiased;
}

.configurator {
    display: grid;
    grid-template-columns: 1fr;
    gap: 2.5rem;
    max-width: 1280px;
    width: 100%;
    margin: 0 auto;
}

@media (min-width: 960px) {
    .configurator {
        grid-template-columns: 1.25fr 0.75fr;
        align-items: start;
    }
}

.preview-column {
    display: flex;
    flex-direction: column;
    gap: 1.25rem;
    position: sticky;
    top: 2rem;
}

.preview {
    background-color: var(--bg-canvas-wrapper);
    border-radius: var(--radius-lg);
    padding: 1.5rem;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    border: 1px solid var(--earth-border);
    box-shadow: var(--shadow-md);
    position: relative;
}

.canvas-toolbar {
    position: absolute;
    top: 2.25rem;
    right: 2.25rem;
    display: flex;
    gap: 0.5rem;
    z-index: 10;
}

.tool-btn {
    width: 34px;
    height: 34px;
    border-radius: var(--radius-sm);
    background: var(--bg-card);
    border: 1px solid var(--earth-border);
    color: var(--text-secondary);
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    transition: all 0.2s ease;
    box-shadow: var(--shadow-sm);
}

    .tool-btn:hover {
        background: var(--bg-page);
        color: var(--text-primary);
        border-color: var(--earth-border-hover);
    }

.canvas-wrapper {
    width: 100%;
    aspect-ratio: 4 / 3;
    display: flex;
    align-items: center;
    justify-content: center;
    background-color: var(--bg-canvas);
    border-radius: var(--radius-md);
    overflow: hidden;
    border: 1px solid var(--earth-border);
}

#productCanvas {
    width: 100%;
    height: 100%;
    object-fit: contain;
    background-color: transparent;
    transition: filter 0.2s ease-out;
}

.angle-selector {
    display: flex;
    gap: 0.5rem;
    margin-top: 1rem;
    width: 100%;
    justify-content: center;
}

.angle-btn {
    padding: 0.4rem 0.85rem;
    font-size: 0.75rem;
    font-weight: 600;
    border-radius: 20px;
    border: 1px solid var(--earth-border);
    background-color: var(--bg-card);
    color: var(--text-secondary);
    cursor: pointer;
    transition: all 0.2s ease;
}

    .angle-btn.active, .angle-btn:hover {
        background-color: var(--text-primary);
        color: var(--bg-page);
        border-color: var(--text-primary);
    }

.spec-highlights {
    background-color: var(--bg-card);
    border: 1px solid var(--earth-border);
    border-radius: var(--radius-md);
    padding: 1rem 1.25rem;
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 1rem;
    text-align: center;
    box-shadow: var(--shadow-sm);
}

.spec-item span {
    display: block;
    font-size: 0.7rem;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    color: var(--text-muted);
    margin-bottom: 0.2rem;
}

.spec-item strong {
    font-size: 0.85rem;
    color: var(--text-primary);
    font-weight: 600;
}

.controls {
    display: flex;
    flex-direction: column;
    gap: 1.75rem;
}

.configurator-header {
    border-bottom: 1px solid var(--earth-border);
    padding-bottom: 1.25rem;
}

.header-meta {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 0.5rem;
}

.category-tag {
    font-size: 0.75rem;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    color: var(--earth-clay);
    font-weight: 600;
}

.stock-badge {
    font-size: 0.7rem;
    background-color: #eaf2eb;
    color: #3b6e45;
    padding: 3px 8px;
    border-radius: 12px;
    font-weight: 600;
}

.header-title-row {
    display: flex;
    justify-content: space-between;
    align-items: baseline;
    gap: 1rem;
    margin-bottom: 0.5rem;
}

.configurator-header h2 {
    font-size: 2.1rem;
    font-weight: 500;
    color: var(--text-primary);
    letter-spacing: -0.02em;
}

.price-display {
    font-size: 1.5rem;
    font-weight: 600;
    color: var(--text-primary);
}

.header-description {
    font-size: 0.875rem;
    color: var(--text-secondary);
    line-height: 1.45;
}

.element-controls {
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
}

.control-group label {
    display: block;
    font-size: 0.875rem;
    font-weight: 600;
    color: var(--text-secondary);
    margin-bottom: 0.75rem;
    letter-spacing: 0.01em;
}

.swatch-palette {
    display: flex;
    gap: 10px;
    flex-wrap: wrap;
}

.swatch-btn {
    width: 36px;
    height: 36px;
    border-radius: 50%;
    border: 2px solid transparent;
    cursor: pointer;
    outline: none;
    position: relative;
    transition: transform 0.2s ease, border-color 0.2s ease, box-shadow 0.2s ease;
}

    .swatch-btn:hover {
        transform: translateY(-2px);
    }

    .swatch-btn.active {
        border-color: var(--text-primary);
        box-shadow: 0 0 0 3px var(--bg-page);
    }

    /* Out of Stock Swatch State */
    .swatch-btn.out-of-stock {
        opacity: 0.35;
        cursor: not-allowed;
        border: 1px solid var(--earth-border);
        filter: grayscale(50%);
    }

        .swatch-btn.out-of-stock:hover {
            transform: none;
        }

        /* Cross (X) Lines */
        .swatch-btn.out-of-stock::before,
        .swatch-btn.out-of-stock::after {
            content: '';
            position: absolute;
            top: 50%;
            left: 50%;
            width: 18px;
            height: 2px;
            background-color: var(--text-primary);
            pointer-events: none;
            z-index: 2;
        }

        .swatch-btn.out-of-stock::before {
            transform: translate(-50%, -50%) rotate(45deg);
        }

        .swatch-btn.out-of-stock::after {
            transform: translate(-50%, -50%) rotate(-45deg);
        }

        /* Suppress Tooltip Popups for Out of Stock Buttons */
        .swatch-btn.out-of-stock[data-tooltip]::before,
        .swatch-btn.out-of-stock[data-tooltip]::after {
            display: none !important;
        }

    .swatch-btn[data-tooltip]::after {
        content: attr(data-tooltip);
        position: absolute;
        bottom: calc(100% + 8px);
        left: 50%;
        transform: translateX(-50%) translateY(4px);
        background-color: var(--text-primary);
        color: var(--bg-page);
        padding: 4px 10px;
        border-radius: var(--radius-sm);
        font-family: var(--font-sans);
        font-size: 0.72rem;
        font-weight: 500;
        letter-spacing: 0.02em;
        white-space: nowrap;
        opacity: 0;
        visibility: hidden;
        pointer-events: none;
        transition: opacity 0.2s ease, transform 0.2s ease, visibility 0.2s ease;
        box-shadow: var(--shadow-sm);
        z-index: 20;
    }

    .swatch-btn[data-tooltip]::before {
        content: '';
        position: absolute;
        bottom: calc(100% + 3px);
        left: 50%;
        transform: translateX(-50%) translateY(4px);
        border-width: 5px 5px 0 5px;
        border-style: solid;
        border-color: var(--text-primary) transparent transparent transparent;
        opacity: 0;
        visibility: hidden;
        pointer-events: none;
        transition: opacity 0.2s ease, transform 0.2s ease, visibility 0.2s ease;
        z-index: 20;
    }

    .swatch-btn[data-tooltip]:hover::after,
    .swatch-btn[data-tooltip]:hover::before {
        opacity: 1;
        visibility: visible;
        transform: translateX(-50%) translateY(0);
    }

.config-summary-box {
    background-color: var(--bg-card);
    border: 1px solid var(--earth-border);
    border-radius: var(--radius-md);
    padding: 1.25rem;
}

    .config-summary-box summary {
        font-size: 0.9rem;
        font-weight: 600;
        color: var(--text-primary);
        cursor: pointer;
        list-style: none;
        display: flex;
        justify-content: space-between;
        align-items: center;
    }

        .config-summary-box summary::-webkit-details-marker {
            display: none;
        }

.summary-list {
    margin-top: 1rem;
    padding-top: 0.75rem;
    border-top: 1px solid var(--earth-border);
    list-style: none;
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}

    .summary-list li {
        display: flex;
        justify-content: space-between;
        font-size: 0.825rem;
        color: var(--text-secondary);
    }

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

.tuner-panel {
    background-color: var(--bg-card);
    border: 1px solid var(--earth-border);
    border-radius: var(--radius-md);
    padding: 1.25rem;
    box-shadow: var(--shadow-sm);
}

    .tuner-panel summary {
        cursor: pointer;
        list-style: none;
    }

        .tuner-panel summary::-webkit-details-marker {
            display: none;
        }

.tuner-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

    .tuner-header h3 {
        font-size: 0.95rem;
        font-weight: 600;
        color: var(--text-primary);
    }

.tuner-badge {
    font-size: 0.7rem;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    background-color: var(--earth-sand);
    color: var(--text-secondary);
    padding: 2px 8px;
    border-radius: 12px;
    font-weight: 600;
}

.tuner-content {
    margin-top: 1.25rem;
    padding-top: 1rem;
    border-top: 1px solid var(--earth-border);
}

.tuner-group {
    margin-bottom: 1rem;
}

.tuner-label-row {
    display: flex;
    justify-content: space-between;
    align-items: center;
    font-size: 0.85rem;
    color: var(--text-secondary);
    margin-bottom: 0.5rem;
}

.val-badge {
    font-family: var(--font-mono);
    font-size: 0.8rem;
    color: var(--earth-clay);
    font-weight: 500;
}

input[type="range"] {
    -webkit-appearance: none;
    appearance: none;
    width: 100%;
    height: 4px;
    background: var(--earth-sand);
    border-radius: 2px;
    outline: none;
}

    input[type="range"]::-webkit-slider-thumb {
        -webkit-appearance: none;
        appearance: none;
        width: 16px;
        height: 16px;
        border-radius: 50%;
        background: var(--earth-clay);
        cursor: pointer;
        transition: background 0.15s ease, transform 0.15s ease;
    }

        input[type="range"]::-webkit-slider-thumb:hover {
            background: var(--earth-clay-hover);
            transform: scale(1.15);
        }

    input[type="range"]::-moz-range-thumb {
        width: 16px;
        height: 16px;
        border: none;
        border-radius: 50%;
        background: var(--earth-clay);
        cursor: pointer;
        transition: background 0.15s ease, transform 0.15s ease;
    }

        input[type="range"]::-moz-range-thumb:hover {
            background: var(--earth-clay-hover);
            transform: scale(1.15);
        }

.tuner-css-output {
    margin-top: 1rem;
    padding: 0.75rem 0.9rem;
    background-color: var(--bg-page);
    border-radius: var(--radius-sm);
    border: 1px solid var(--earth-border);
}

    .tuner-css-output code {
        font-family: var(--font-mono);
        font-size: 0.75rem;
        color: var(--text-secondary);
        word-break: break-all;
    }

#cssOutput {
    color: var(--earth-clay);
}

.action-bar {
    display: flex;
    gap: 0.75rem;
    margin-top: 0.5rem;
}

.btn {
    padding: 0.85rem 1.25rem;
    border-radius: var(--radius-md);
    font-family: var(--font-sans);
    font-size: 0.9rem;
    font-weight: 600;
    cursor: pointer;
    border: 1px solid transparent;
    transition: all 0.2s ease;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
}

.btn-primary {
    flex: 2;
    background-color: var(--earth-clay);
    color: #ffffff;
    border-color: var(--earth-clay);
}

    .btn-primary:hover {
        background-color: var(--earth-clay-hover);
        border-color: var(--earth-clay-hover);
        box-shadow: var(--shadow-sm);
    }

.btn-secondary {
    flex: 1;
    background-color: var(--bg-card);
    color: var(--text-primary);
    border-color: var(--earth-border);
}

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