.color-btn {
    width: 38px;
    height: 38px;
    border: 2px solid var(--site-border);
    border-radius: 50%;
    cursor: pointer;
    transition: all 0.2s ease;
    box-shadow: 0 2px 5px rgba(0,0,0,0.05);
}
.color-btn:hover {
    transform: scale(1.15);
    box-shadow: 0 4px 10px rgba(0,0,0,0.15);
    border-color: var(--site-border);
}
.color-btn.active {
    border-color: #000;
    transform: scale(1.1);
    box-shadow: 0 0 0 3px #fff, 0 0 0 5px var(--text-main);
}

.calculator-page {
    max-width: 1440px;
}

.calculator-intro {
    padding: 2.5rem 2rem;
    border: 1px solid var(--border);
    box-shadow: var(--shadow-md) !important;
    background: var(--bg-card);
}

.calculator-intro-copy h1 {
    font-size: 2.5rem;
    letter-spacing: -0.02em;
}

.calculator-intro-copy p {
    max-width: 600px;
    font-size: 1.05rem;
}

.calculator-eyebrow {
    font-size: 0.8rem;
    letter-spacing: 1px;
    text-transform: uppercase;
}

.control-card {
    background: var(--bg-soft);
    border: 1px solid var(--border);
    border-radius: var(--radius-sm);
    padding: 1.5rem;
    margin-bottom: 1.5rem;
    transition: box-shadow 0.3s, transform 0.3s;
}

.control-card:hover {
    box-shadow: var(--shadow-sm);
}

.pricing-card {
    background: var(--bg-card);
}

.control-help {
    color: var(--text-main);
    opacity: 0.7;
    font-size: 0.85rem;
    line-height: 1.5;
    margin: -0.5rem 0 1.25rem;
}

.step-card {
    text-align: center;
    padding: 1.5rem 1rem;
    background: var(--bg-soft);
    border-radius: var(--radius-sm);
    height: 100%;
    border: 1px solid var(--border);
    transition: transform 0.2s, box-shadow 0.2s;
}

.step-card:hover {
    transform: translateY(-3px);
    box-shadow: var(--shadow-sm);
}

.pricing-note {
    background: rgba(245, 158, 11, 0.08);
    border: 1px solid rgba(245, 158, 11, 0.2);
}

.pricing-note h6 {
    color: var(--text-main);
    font-size: 0.9rem;
}

.pricing-note p {
    color: var(--text-main);
    font-size: 0.8rem;
    line-height: 1.5;
}

.preview-toolbar {
    position: absolute;
    z-index: 2;
    inset: 1rem 1rem auto;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 1rem;
    color: var(--text-main);
    font-size: 0.8rem;
    font-weight: 700;
    pointer-events: none;
}

.preview-toolbar button {
    pointer-events: auto;
    border: 1px solid var(--border);
    color: var(--text-main);
}

.preview-toolbar button:focus-visible,
.color-btn:focus-visible,
.form-control:focus-visible,
.form-select:focus-visible,
.form-range:focus-visible {
    outline: 3px solid color-mix(in srgb, var(--gold) 45%, transparent);
    outline-offset: 2px;
}

.price-card #totalPrice {
    font-variant-numeric: tabular-nums;
}

/* Mobile Responsiveness for the 3D Room */
@media (max-width: 768px) {
    .calculator-intro {
        padding: 1.75rem 1rem;
    }

    .calculator-intro-copy h1 {
        font-size: 2rem;
    }

    .preview-toolbar {
        inset: 0.75rem;
    }

    #scene-container { 
        position: absolute !important;
        width: 600px !important;
        height: 100% !important;
        left: 50% !important;
        top: 0 !important;
        margin-left: -300px !important;
        transform: scale(0.75) !important;
        transform-origin: center center !important;
    }
}
@media (max-width: 480px) {
    #scene-container {
        transform: scale(0.55) !important;
    }
}

/* Match customer glass surfaces while preserving the 3D scene's lighting. */
@media screen {
    html[data-theme-scope="customer"][data-color-mode] .calculator-page :is(.calculator-intro, .control-card) {
        background: var(--glass-fallback);
        border: 1px solid var(--site-border);
        border-radius: 18px;
        box-shadow: inset 0 1px 0 var(--site-edge-highlight), var(--site-panel-shadow) !important;
    }
    html[data-theme-scope="customer"][data-color-mode] .calculator-page .step-card {
        background: transparent;
        border-color: var(--site-border);
        box-shadow: none;
    }
    .calculator-intro-copy { margin-bottom: 1.75rem; }
    @supports ((backdrop-filter: blur(22px)) or (-webkit-backdrop-filter: blur(22px))) {
        html[data-theme-scope="customer"][data-color-mode] .calculator-page :is(.calculator-intro, .control-card) {
            background: linear-gradient(135deg, var(--glass-sheen), transparent 65%), var(--glass-fill);
            backdrop-filter: blur(22px) saturate(120%);
            -webkit-backdrop-filter: blur(22px) saturate(120%);
        }
    }
}
@media (prefers-reduced-transparency: reduce), (forced-colors: active) {
    html[data-theme-scope="customer"][data-color-mode] .calculator-page :is(.calculator-intro, .control-card) {
        background: var(--glass-fallback);
        backdrop-filter: none;
        -webkit-backdrop-filter: none;
    }
}

/* Scene materials keep their physical colors; only the studio and UI follow the theme. */
html[data-theme-scope="customer"][data-color-mode="dark"] .calculator-page .scene-wrapper {
    background: radial-gradient(ellipse at 50% 38%, #34383b 0%, #191c20 58%, #101214 100%);
    border-color: var(--site-border);
}
html[data-theme-scope="customer"] .calculator-page #resetSceneBtn {
    background: var(--site-raised);
    color: var(--site-text);
    border: 1px solid var(--site-control-border);
    min-height: 40px;
}
html[data-theme-scope="customer"] .calculator-page #resetSceneBtn:hover {
    background: var(--site-hover);
    border-color: var(--site-accent-text);
}
.calculator-page #dimensions-container { transform: translateZ(48px); }

/* A neutral studio backdrop separates the white model from light-mode chrome. */
html[data-theme-scope="customer"][data-color-mode="light"] .calculator-page .scene-wrapper {
    background: radial-gradient(ellipse at 50% 38%, #b8c1c9 0%, #99a5b0 60%, #85929e 100%);
    border-color: #85929e;
}
html[data-theme-scope="customer"][data-color-mode="light"] .calculator-page .preview-toolbar > span {
    color: #171717;
}

/* Styles moved out of the calculator template for CSP compatibility. */
.calc-section-title {
    font-size: 1.1rem;
    font-weight: 700;
    margin-bottom: 1.25rem;
    color: var(--text-main);
    display: flex;
    align-items: center;
    gap: 0.5rem;
}
.calc-section-title i { color: var(--site-accent-text); }
.calculator-page .form-control,
.calculator-page .form-select {
    border-radius: 8px;
    border: 1px solid var(--site-border);
    padding: 0.6rem 1rem;
    background: var(--site-surface);
    font-size: 0.95rem;
}
.calculator-page .form-control:focus,
.calculator-page .form-select:focus {
    border-color: var(--text-main);
    box-shadow: 0 0 0 3px rgba(0,0,0,0.05);
}
.calculator-page .form-label {
    font-weight: 600;
    font-size: 0.85rem;
    color: var(--text-main);
    margin-bottom: 0.4rem;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}
.calculator-page .price-card {
    background: var(--site-raised);
    color: var(--site-text);
    border-radius: var(--radius-sm);
    padding: 1.75rem;
    text-align: center;
    box-shadow: var(--shadow-md);
    position: relative;
    overflow: hidden;
}
.calculator-page .price-card::before {
    content: '';
    position: absolute;
    top: -50%;
    left: -50%;
    width: 200%;
    height: 200%;
    background: radial-gradient(circle, rgba(255,215,0,0.1) 0%, transparent 60%);
    pointer-events: none;
}
.calculator-page .price-card .text-muted { color: var(--site-muted) !important; }
.calculator-page .price-card h2 { color: var(--site-accent-text); }
.calculator-page .scene-wrapper {
    background: radial-gradient(circle at 50% 40%, var(--site-surface) 0%, #e2e6ea 100%);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    position: relative;
    height: 700px;
    overflow: hidden;
    box-shadow: inset 0 0 40px rgba(0,0,0,0.02);
}
.calculator-page .step-number {
    width: 36px;
    height: 36px;
    background: var(--site-raised);
    color: var(--site-accent-text);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 800;
    margin: 0 auto 1rem auto;
    font-size: 1.1rem;
    box-shadow: 0 4px 10px rgba(0,0,0,0.15);
}
.calculator-page .form-range { accent-color: var(--text-main); }
.calculator-page .form-range::-webkit-slider-runnable-track {
    background-color: #cbd5e1;
    height: 6px;
    border-radius: 10px;
}
.calculator-page .form-range::-webkit-slider-thumb {
    background-color: var(--text-main);
    box-shadow: 0 2px 5px rgba(0,0,0,0.2);
}
.calculator-page .form-range::-moz-range-track {
    background-color: #cbd5e1;
    height: 6px;
    border-radius: 10px;
}

.calculator-page #scene-container {
    perspective: 1200px;
    perspective-origin: 50% 45%;
    height: 100%;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: grab;
}
.calculator-page #room-3d {
    position: relative;
    width: 600px;
    height: 450px;
    transform-style: preserve-3d;
    transform: rotateY(-15deg) rotateX(5deg);
    transition: transform 0.1s ease-out;
}
.scene-wall-face { position: absolute; }
.scene-wall-face--back {
    inset: 0;
    background: #e2e4e6;
    transform: translateZ(-30px);
    border: 1px solid rgba(24,32,43,.14);
}
.scene-wall-face--top {
    top: 0; left: 0; right: 0; height: 30px;
    background: #ebebeb;
    transform-origin: top; transform: rotateX(-90deg);
    border-bottom: 1px solid rgba(24,32,43,.14);
}
.scene-wall-face--bottom {
    bottom: 0; left: 0; right: 0; height: 30px;
    background: #d1d3d4;
    transform-origin: bottom; transform: rotateX(90deg);
    border-top: 1px solid rgba(24,32,43,.14);
}
.scene-wall-face--left {
    top: 0; bottom: 0; left: 0; width: 30px;
    background: #dadcdd;
    transform-origin: left; transform: rotateY(90deg);
    border-right: 1px solid rgba(24,32,43,.14);
}
.scene-wall-face--right {
    top: 0; bottom: 0; right: 0; width: 30px;
    background: #f1f2f3;
    transform-origin: right; transform: rotateY(-90deg);
    border-left: 1px solid rgba(24,32,43,.14);
}
.calculator-page #wall-3d { position: absolute; inset: 0; transform-style: preserve-3d; }
.calculator-page #wall-surface {
    position: absolute;
    inset: 0;
    background: linear-gradient(135deg, #f8f9fa 0%, #f0f2f5 100%);
    box-shadow: 0 20px 50px rgba(0,0,0,0.1);
}
.wall-texture {
    position: absolute;
    inset: 0;
    background: repeating-linear-gradient(0deg, transparent, transparent 20px, rgba(24,32,43,.045) 20px, rgba(24,32,43,.045) 21px);
    pointer-events: none;
}
.calculator-page #window-hole-3d { position: absolute; background: transparent; transform-style: preserve-3d; }
.window-sill { position: absolute; }
.window-sill--left {
    top: 0; bottom: 0; left: 0; width: 30px; background: #eef0f2;
    transform-origin: left; transform: rotateY(90deg); border-right: 1px solid rgba(24,32,43,.14);
}
.window-sill--right {
    top: 0; bottom: 0; right: 0; width: 30px; background: #dfe1e3;
    transform-origin: right; transform: rotateY(-90deg); border-left: 1px solid rgba(24,32,43,.14);
}
.window-sill--top {
    top: 0; left: 0; right: 0; height: 30px; background: #f8f9fa;
    transform-origin: top; transform: rotateX(-90deg); border-bottom: 2px solid rgba(24,32,43,.14);
}
.window-sill--bottom {
    bottom: 0; left: 0; right: 0; height: 30px; background: #d3d6d9;
    transform-origin: bottom; transform: rotateX(90deg); border-top: 1px solid rgba(24,32,43,.14);
}
.calculator-page #window-glass {
    position: absolute; inset: 0;
    background: linear-gradient(135deg, #a8c0d8 0%, #6d8ba6 100%);
    transform: translateZ(-30px); border: 8px solid #ffffff;
    box-shadow: inset 0 0 30px rgba(0,0,0,0.2); overflow: hidden;
}
.window-glare {
    position: absolute; top: -50%; left: -50%; right: -50%; bottom: -50%;
    background: linear-gradient(45deg, transparent 40%, rgba(24,32,43,.045) 45%, rgba(255,255,255,0.4) 50%, rgba(24,32,43,.045) 55%, transparent 60%);
    transform: rotate(15deg) translateY(-10%); pointer-events: none;
}
.calculator-page #window-divider-v {
    position: absolute; top: 0; bottom: 0; left: 50%; width: 8px; background: #f8f9fa;
    transform: translateX(-50%); z-index: 2; box-shadow: 0 0 5px rgba(0,0,0,0.1);
}
.calculator-page #window-divider-h {
    position: absolute; left: 0; right: 0; top: 50%; height: 8px; background: #f8f9fa;
    transform: translateY(-50%); z-index: 2; box-shadow: 0 0 5px rgba(0,0,0,0.1);
}
.calculator-page #blind-3d {
    position: absolute; background: #FFD700; border: 1px solid rgba(24,32,43,.14);
    box-shadow: 0 8px 20px rgba(0,0,0,0.25); transition: all 0.3s ease;
    transform: translateZ(15px); transform-style: preserve-3d;
}
.calculator-page #blind-roller-tube {
    position: absolute; top: -15px; left: -15px; right: -15px; height: 30px; z-index: 10;
    transform-style: preserve-3d; transition: all 0.3s ease;
}
.roller-face { position: absolute; border: 1px solid #ccc; }
.roller-face--front {
    inset: 0;
    background: linear-gradient(to bottom, #f8f9fa, #e6e6e6);
    transform: translateZ(15px); box-shadow: 0 5px 15px rgba(0,0,0,0.1);
}
.roller-face--seam { position: absolute; bottom: 4px; left: 0; right: 0; height: 1px; background: rgba(24,32,43,.045); }
.roller-face--back { inset: 0; background: #d9d9d9; transform: rotateY(180deg) translateZ(15px); }
.roller-face--top { top: 0; left: 0; right: 0; height: 30px; background: #f8f9fa; transform: rotateX(90deg) translateZ(15px); }
.roller-face--bottom { bottom: 0; left: 0; right: 0; height: 30px; background: #c0c0c0; transform: rotateX(-90deg) translateZ(15px); }
.roller-slot { position: absolute; top: 12px; left: 16px; right: 16px; height: 6px; background: #111; border-radius: 3px; box-shadow: inset 0 2px 4px rgba(0,0,0,0.9); }
.roller-face--left, .roller-face--right { top: 0; width: 30px; height: 30px; background: #f0f0f0; }
.roller-face--left { left: 0; transform: rotateY(-90deg) translateZ(15px); }
.roller-face--right { right: 0; transform: rotateY(90deg) translateZ(15px); }
.roller-bracket { position: absolute; top: 50%; left: 50%; width: 14px; height: 14px; border: 1px solid #aaa; border-radius: 50%; transform: translate(-50%, -50%); background: #f8f9fa; }
.roller-chain { position: absolute; top: 15px; left: 12px; width: 6px; height: 200px; border: 2px dotted #bbb; border-top: none; transform: translateZ(-2px); }
.calculator-page #blind-slats { position: absolute; inset: 0; z-index: 1; }
.calculator-page #dimensions-container { position: absolute; inset: 0; pointer-events: none; }
.dimension-label {
    position: absolute; font-size: 13px; font-weight: bold; padding: 4px 10px;
    border-radius: 20px; box-shadow: 0 2px 5px rgba(0,0,0,0.1); color: var(--text-main);
}
.dimension-label--window { background: var(--site-surface); border: 1px solid var(--site-border); }
.dimension-label--blind { background: var(--site-raised); border: 1px solid var(--text-main); box-shadow: 0 2px 5px rgba(0,0,0,0.2); color: var(--site-accent-text); }
.scene-floor-shadow {
    position: absolute; bottom: -60px; left: 50%; transform: translateX(-50%);
    width: 140%; height: 60px;
    background: radial-gradient(ellipse at center, var(--site-panel-tint) 0%, transparent 60%);
    pointer-events: none;
}
.scene-instructions { border: 1px solid var(--border); color: var(--text-main); }
.calculator-page .color-btn[data-color="#FFD700"] { background: #FFD700; }
.calculator-page .color-btn[data-color="#F5F5F5"] { background: #F5F5F5; }
.calculator-page .color-btn[data-color="#8B7355"] { background: #8B7355; }
.calculator-page .color-btn[data-color="#2C3E50"] { background: #2C3E50; }
.calculator-page .color-btn[data-color="#222222"] { background: #222222; }
.calculator-page #transparencyDisplay { color: var(--text-main); }