/* ============================================================
   Unified Variant Selector
   - Colors  → RED indicator (.color-btn, .gen-color-swatch)
   - Sizes / Storages / others → BLUE indicator (.size-btn, .storage-btn)
   - Smooth spring-easing transitions
   Loaded AFTER inline product styles to win the cascade.
   ============================================================ */

:root {
    --variant-red:        #ef4444;
    --variant-red-soft:   rgba(239, 68, 68, 0.35);
    --variant-red-glow:   rgba(239, 68, 68, 0.55);
    --variant-blue:       #3b82f6;
    --variant-blue-soft:  rgba(59, 130, 246, 0.30);
    --variant-blue-glow:  rgba(59, 130, 246, 0.50);
    --variant-spring:     cubic-bezier(.34, 1.56, .64, 1);
}

/* ---------- Base transitions on every variant control ---------- */
.color-btn,
.gen-color-swatch,
.size-btn,
.storage-btn {
    transition:
        transform   .25s var(--variant-spring),
        box-shadow  .25s ease,
        border-color .25s ease,
        background-color .25s ease,
        color       .25s ease,
        outline     .25s ease;
    will-change: transform, box-shadow;
}

/* =======================================================
   COLOR VARIANTS  — RED indicator
   ======================================================= */
.color-btn,
.gen-color-swatch {
    position: relative;
    border: 2px solid rgba(255, 255, 255, 0.9) !important;
    outline: 1px solid rgba(0, 0, 0, 0.10) !important;
    box-shadow: 0 1px 3px rgba(0, 0, 0, 0.12);
}

.color-btn:hover:not(:disabled),
.gen-color-swatch:hover:not(:disabled) {
    transform: scale(1.15);
    box-shadow: 0 4px 14px rgba(0, 0, 0, 0.18);
    outline-color: var(--variant-red) !important;
}

.color-btn.active,
.gen-color-swatch.active {
    border-color: #fff !important;
    outline: 3px solid var(--variant-red) !important;
    outline-offset: 2px;
    transform: scale(1.20);
    box-shadow:
        0 0 0 6px var(--variant-red-soft),
        0 6px 16px var(--variant-red-glow) !important;
    animation: variantPopRed .45s var(--variant-spring);
}

/* Completely suppress the legacy ✓ pseudo-element on selected color swatches */
.color-btn.active::after,
.color-btn::after,
.gen-color-swatch.active::after,
.gen-color-swatch::after {
    content: none !important;
    display: none !important;
}

/* =======================================================
   SIZE / STORAGE / OTHER VARIANTS  — BLUE indicator
   ======================================================= */
.size-btn,
.storage-btn {
    position: relative;
    border: 2px solid #dee2e6 !important;
    background: #fff !important;
    color: #495057 !important;
    border-radius: 0.5rem !important;
    font-weight: 600 !important;
}

.size-btn:hover:not(:disabled),
.storage-btn:hover:not(:disabled) {
    border-color: var(--variant-blue) !important;
    background: #eff6ff !important;
    color: var(--variant-blue) !important;
    transform: translateY(-1px);
    box-shadow: 0 4px 10px rgba(59, 130, 246, 0.18);
}

.size-btn.active,
.storage-btn.active {
    border-color: var(--variant-blue) !important;
    background: linear-gradient(135deg, #3b82f6, #2563eb) !important;
    color: #fff !important;
    transform: translateY(-1px) scale(1.04);
    box-shadow:
        0 0 0 4px var(--variant-blue-soft),
        0 6px 16px var(--variant-blue-glow) !important;
    animation: variantPopBlue .45s var(--variant-spring);
}

/* Completely suppress any ::after badge on selected size/storage buttons */
.size-btn.active::after,
.size-btn::after,
.storage-btn.active::after,
.storage-btn::after {
    content: none !important;
    display: none !important;
}

/* =======================================================
   Disabled (unavailable) variants
   ======================================================= */
.color-btn:disabled,
.gen-color-swatch:disabled,
.size-btn:disabled,
.storage-btn:disabled {
    opacity: .35 !important;
    cursor: not-allowed !important;
    transform: none !important;
    box-shadow: none !important;
    animation: none !important;
    pointer-events: none;
}
.size-btn:disabled,
.storage-btn:disabled {
    background: #f8f9fa !important;
    text-decoration: line-through;
    color: #adb5bd !important;
}

/* =======================================================
   Spring animations
   ======================================================= */
@keyframes variantPopRed {
    0%   { transform: scale(1); box-shadow: 0 0 0 0 var(--variant-red-soft); }
    45%  { transform: scale(1.30); box-shadow: 0 0 0 10px rgba(239, 68, 68, 0.18); }
    100% { transform: scale(1.20); box-shadow: 0 0 0 6px var(--variant-red-soft), 0 6px 16px var(--variant-red-glow); }
}
@keyframes variantPopBlue {
    0%   { transform: translateY(0)   scale(1); box-shadow: 0 0 0 0 var(--variant-blue-soft); }
    45%  { transform: translateY(-2px) scale(1.09); box-shadow: 0 0 0 10px rgba(59, 130, 246, 0.15); }
    100% { transform: translateY(-1px) scale(1.04); box-shadow: 0 0 0 4px var(--variant-blue-soft), 0 6px 16px var(--variant-blue-glow); }
}
/* =======================================================
   Selected-name label transitions ("Red", "Black", etc.)
   ======================================================= */
#selectedColorName,
#selectedGenColorName {
    transition: color .25s ease, transform .25s var(--variant-spring);
    display: inline-block;
}
#selectedColorName.variant-flash,
#selectedGenColorName.variant-flash {
    color: var(--variant-red);
    transform: translateY(-2px);
}

/* =======================================================
   Reduced motion accessibility
   ======================================================= */
@media (prefers-reduced-motion: reduce) {
    .color-btn, .gen-color-swatch, .size-btn, .storage-btn {
        transition: background-color .15s, border-color .15s, color .15s;
        animation: none !important;
    }
    .color-btn.active, .gen-color-swatch.active,
    .size-btn.active, .storage-btn.active {
        transform: none !important;
        animation: none !important;
    }
}