/* ============
   Design tokens
   ============ */

:root {
    --charm-bg: #f8f4f0;
    --charm-bg-soft: #f8f4f0;
    --charm-surface: #fefbf8;
    --charm-border-subtle: rgba(59, 10, 10, 0.22);
    --charm-border-strong: rgba(59, 10, 10, 0.42);
    --charm-primary: #3b0a0a;
    --charm-primary-soft: rgba(59, 10, 10, 0.12);
    --charm-primary-strong: #2b0707;
    --charm-accent: #fadfb5; /* vàng kem */
    --charm-text-main: #3b0a0a;
    --charm-text-muted: #6b3b3b;
    --charm-danger: #e0526c;
    --charm-radius-lg: 18px;
    --charm-radius-md: 12px;
    --charm-radius-sm: 8px;
    --charm-shadow-soft: 0 12px 30px rgba(59, 10, 10, 0.08);
    --charm-shadow-subtle: 0 4px 12px rgba(59, 10, 10, 0.06);
    --charm-transition-fast: 0.18s cubic-bezier(0.22, 0.61, 0.36, 1);
    --charm-transition-normal: 0.25s cubic-bezier(0.22, 0.61, 0.36, 1);
}

/* Animation: Shake when dragging */
@keyframes shake {
    0% { transform: rotate(0deg); }
    25% { transform: rotate(5deg); }
    50% { transform: rotate(0deg); }
    75% { transform: rotate(-5deg); }
    100% { transform: rotate(0deg); }
}

/* ============
   Global wrapper
   ============ */

#charm-builder-app {
    background: radial-gradient(circle at top left, #f8f4f0 0, #f4ece4 45%, #fefbf8 100%);
    border-radius: 24px;
    padding: 26px 26px 30px;
    box-shadow: var(--charm-shadow-soft);
    border: 1px solid rgba(217, 185, 167, 0.7);
    position: relative;
    overflow: hidden;
}

#charm-builder-app::before {
    content: "";
    position: absolute;
    inset: 0;
    pointer-events: none;
    background:
        radial-gradient(circle at top right, rgba(250, 223, 181, 0.35) 0, transparent 55%),
        radial-gradient(circle at bottom left, rgba(100, 25, 25, 0.18) 0, transparent 55%);
    opacity: 0.9;
}

#charm-builder-app > * {
    position: relative;
    z-index: 1;
}

.entry-header {
    margin-bottom: 14px;
}

.entry-header .entry-title {
    font-size: 26px;
    font-weight: 700;
    letter-spacing: 0.02em;
    color: var(--charm-text-main);
    margin-bottom: 4px;
}

.entry-header + p {
    margin-top: 0;
    color: var(--charm-text-muted);
    font-size: 14px;
}

/* ============
   Step Progress Indicator
   ============ */

.builder-progress-indicator {
    margin-bottom: 30px;
    position: relative;
    z-index: 10;
}

.step-progress-list {
    display: flex;
    justify-content: space-between;
    list-style: none;
    padding: 0;
    margin: 0;
    position: relative;
    gap: 8px;
    overflow-x: auto;
    padding-bottom: 12px;
}

.step-progress-list::-webkit-scrollbar {
    height: 4px;
}
.step-progress-list::-webkit-scrollbar-thumb {
    background-color: var(--charm-primary-soft);
    border-radius: 4px;
}

.step-item {
    flex: 1;
    min-width: 70px;
    text-align: center;
    position: relative;
    display: flex;
    flex-direction: column;
    align-items: center;
    opacity: 0.6;
    z-index: 2;
    transition: opacity var(--charm-transition-normal);
}

.step-item.active {
    opacity: 1;
}

.step-item.completed {
    opacity: 0.9;
}

.step-num {
    width: 32px;
    height: 32px;
    border-radius: 50%;
    background: #e0e0e0;
    color: #666;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 14px;
    font-weight: 700;
    margin-bottom: 8px;
    position: relative;
    z-index: 2;
    transition: all var(--charm-transition-normal);
    border: 2px solid transparent;
}

.step-item.active .step-num {
    background: linear-gradient(135deg, var(--charm-primary), var(--charm-primary-strong));
    color: #fff;
    box-shadow: 0 4px 10px rgba(59, 10, 10, 0.25);
    transform: scale(1.1);
}

.step-item.completed .step-num {
    background: #fff;
    color: var(--charm-primary);
    border-color: var(--charm-primary);
}

.step-label {
    font-size: 12px;
    font-weight: 600;
    color: var(--charm-text-muted);
    white-space: nowrap;
    transition: color var(--charm-transition-normal);
}

.step-item.active .step-label {
    color: var(--charm-primary-strong);
}

.step-indicator {
    display: inline-block;
    background: var(--charm-primary-soft);
    color: var(--charm-primary);
    padding: 2px 8px;
    border-radius: 12px;
    font-size: 11px;
    margin-right: 6px;
    vertical-align: middle;
}

.step-progress-list::before {
    content: '';
    position: absolute;
    top: 16px;
    left: 10%;
    right: 10%;
    height: 2px;
    background: var(--charm-border-subtle);
    z-index: 1;
}

@media (max-width: 768px) {
    .step-progress-list {
        justify-content: flex-start;
        -webkit-overflow-scrolling: touch;
    }
    .step-item {
        min-width: 80px;
    }
}

/* ============
   Layout
   ============ */

.builder-layout {
    display: grid;
    grid-template-columns: minmax(0, 1.4fr) minmax(0, 1fr);
    gap: 26px;
    margin-top: 12px;
    align-items: flex-start;
}

/* Horizontal view mode: Stack canvas on top, charms below */
.builder-layout.horizontal-view {
    grid-template-columns: 1fr;
    gap: 20px;
}

.builder-layout.horizontal-view .builder-canvas-column {
    order: 1;
}

.builder-layout.horizontal-view .builder-selection-column {
    order: 2;
}

.builder-column {
    min-width: 0;
}

/* Mobile: Stack vertically */
@media (max-width: 768px) {
    #charm-builder-app {
        padding: 16px 16px 20px;
    }
    
    .builder-layout {
        grid-template-columns: 1fr;
        gap: 16px;
    }
    
    .builder-canvas-column {
        order: 1;
    }
    
    .builder-selection-column {
        order: 2;
    }
    
    .builder-controls-wrapper {
        flex-direction: column !important;
        gap: 12px !important;
    }
    
    .builder-instructions {
        font-size: 14px !important;
        padding: 12px !important;
    }
    
    .builder-instructions p {
        font-size: 13px !important;
    }
    
    .entry-header .entry-title {
        font-size: 22px !important;
    }
}

.builder-canvas-column {
    display: flex;
    flex-direction: column;
    gap: 16px;
}

.builder-selection-column {
    display: flex;
    flex-direction: column;
    gap: 12px;
}

/* ============
   Canvas Area
   ============ */

.canvas-wrapper {
    background: var(--charm-surface);
    padding: 18px;
    border-radius: var(--charm-radius-lg);
    box-shadow: var(--charm-shadow-subtle);
    border: 1px solid var(--charm-border-subtle);
}

.canvas-container {
    position: relative;
    width: 100%;
    height: 100px;
    background: radial-gradient(circle at 20% 20%, #f8f4f0 0, #f5e6da 40%, #fbeee4 100%);
    overflow-x: auto;
    overflow-y: hidden;
    border-radius: calc(var(--charm-radius-lg) - 4px);
    display: flex;
    justify-content: center;
    align-items: center;
    padding: 0;
}

.canvas-container::before {
    content: "";
    display: none;
}

.canvas-container img.base-image {
    position: absolute;
    left: 50%;
    top: 50%;
    transform: translate(-50%, -50%);
    max-width: 70%;
    max-height: 60%;
    object-fit: contain;
    z-index: 1;
    filter: drop-shadow(0 12px 20px rgba(0, 0, 0, 0.08));
    pointer-events: none;
    display: none !important;
}

/* Mobile Vertical Mode - apply via JS on mobile */
.canvas-container.vertical-mode {
    height: auto;
    min-height: 400px;
    max-height: 70vh;
    width: 100%;
    overflow-x: hidden;
    overflow-y: auto;
    -webkit-overflow-scrolling: touch;
    touch-action: pan-y;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: flex-start;
    padding: 20px 0;
}

.canvas-container.vertical-mode img.base-image {
    /* Hidden in JS for mobile portrait; keep neutral fallback */
    position: absolute;
    left: 50%;
    top: 50%;
    transform: translate(-50%, -50%);
    transform-origin: center center;
    width: auto;
    height: auto;
    max-width: none;
    max-height: none;
    display: none !important;
    flex-shrink: 0;
    margin: 0;
}

/* Keep vertical preview compact on desktop and tablet when user selects vertical mode */
.builder-layout.vertical-forced .canvas-container.vertical-mode {
    width: 92px;
    max-width: 92px;
    margin: 0 auto;
}

.drop-zone {
    position: relative;
    min-height: 56px;
    height: 56px;
    z-index: 10;
    display: flex;
    align-items: center;
    flex-shrink: 0;
    pointer-events: auto;
    cursor: copy;
    width: 100%;
}

.drop-zone.drag-over {
    outline: 2px dashed rgba(90, 42, 39, 0.4);
    outline-offset: -2px;
    background: rgba(250, 223, 181, 0.2);
}

/* Mobile: Native vertical strip (no parent rotation) */
@media (max-width: 768px) {
    .canvas-container {
        height: auto;
        min-height: 400px;
        max-height: 70vh;
        overflow-x: hidden;
        overflow-y: auto;
        display: flex;
        flex-direction: column;
        align-items: center;
        justify-content: flex-start;
        padding: 20px 0;
    }
    
    .drop-zone {
        transform: none;
        transform-origin: center center;
        display: flex;
        flex-direction: row;
        align-items: center;
        justify-content: flex-start;
        /* Width/height will be set by JS based on bracelet length */
        padding: 0;
    }
    
    /* Charms rotate in JS for portrait mode */
    .drop-zone .charm-on-canvas {
        transform-origin: center center !important;
    }
    
    /* Bead images rotate in JS for portrait mode */
    .drop-zone .base-bead-slot {
        transform: none;
    }
    
}

/* ============
   Charms on Canvas
   ============ */

.charm-on-canvas {
    position: absolute;
    min-width: 48px;
    min-height: 48px;
    z-index: 20;
    flex-shrink: 0;
    cursor: grab;
    transition:
        transform var(--charm-transition-fast),
        box-shadow var(--charm-transition-fast),
        filter var(--charm-transition-fast);
    filter: drop-shadow(0 4px 8px rgba(42, 13, 61, 0.25));
    will-change: transform, filter;
}

/* V2: Alias for placed charms */
.placed-charm {
    position: absolute;
    min-width: 48px;
    min-height: 48px;
    z-index: 20;
    flex-shrink: 0;
    cursor: grab;
    transition:
        transform var(--charm-transition-fast),
        box-shadow var(--charm-transition-fast),
        filter var(--charm-transition-fast);
    filter: drop-shadow(0 4px 8px rgba(42, 13, 61, 0.25));
    will-change: transform, filter;
}

.placed-charm.dragging-placed,
.charm-on-canvas.shaking {
    animation: shake 0.3s ease-in-out infinite;
}

.charm-on-canvas.dragging,
.placed-charm.dragging {
    opacity: 0.92;
    transform: scale(1.04);
    filter: drop-shadow(0 10px 18px rgba(42, 13, 61, 0.32));
}

.placed-charm:hover,
.charm-on-canvas:hover {
    transform: translateY(-4px) scale(1.08);
    filter: drop-shadow(0 8px 16px rgba(42, 13, 61, 0.35));
}

.placed-charm:active,
.charm-on-canvas:active {
    cursor: grabbing;
    transform: translateY(-2px) scale(1.02);
    filter: drop-shadow(0 6px 12px rgba(42, 13, 61, 0.25));
}

.placed-charm img,
.charm-on-canvas img {
    width: 100%;
    height: 100%;
    object-fit: contain;
    pointer-events: none;
}

/* Hiệu ứng Mobile Long-press & Drag Ghost */
.drag-intent-active {
    transform: scale(1.15) !important;
    opacity: 0.6;
    z-index: 100;
}

.touch-drag-ghost {
    position: fixed;
    width: 60px;
    height: 60px;
    z-index: 9999;
    pointer-events: none;
    transform: scale(1.2);
    box-shadow: 0 16px 32px rgba(59, 10, 10, 0.45);
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.5);
    backdrop-filter: blur(2px);
    transition: transform 0.1s ease;
}

.touch-drag-ghost img {
    width: 100%;
    height: 100%;
    object-fit: contain;
    filter: drop-shadow(0 8px 16px rgba(42, 13, 61, 0.4));
}


.placed-charm .long-badge,
.charm-on-canvas .long-badge {
    position: absolute;
    bottom: -8px;
    right: -8px;
    background: #ff9800;
    color: white;
    font-size: 10px;
    font-weight: 700;
    padding: 2px 6px;
    border-radius: 10px;
    border: 2px solid white;
    box-shadow: 0 2px 6px rgba(0,0,0,0.2);
    z-index: 10;
}

/* Base Bead Preview (Visual hạt base chain) */
.base-bead-preview {
    position: absolute;
    pointer-events: none;
    opacity: 0.4;
    z-index: 1;
    transition: opacity 0.2s ease;
}

.base-bead-preview img {
    width: 100%;
    height: 100%;
    object-fit: contain;
    filter: brightness(0.95);
}

.placed-charm .remove-placed-charm,
.remove-charm-btn {
    position: absolute;
    top: -6px;
    right: -6px;
    width: 20px;
    height: 20px;
    background: linear-gradient(135deg, var(--charm-danger), #ff7b8d);
    color: #fff;
    border-radius: 999px;
    text-align: center;
    line-height: 20px;
    font-size: 11px;
    cursor: pointer;
    opacity: 0;
    transform: scale(0.9);
    transition: opacity var(--charm-transition-fast), transform var(--charm-transition-fast);
    box-shadow: 0 4px 8px rgba(224, 82, 108, 0.4);
    z-index: 30;
}

.charm-on-canvas:hover .remove-charm-btn,
.placed-charm:hover .remove-placed-charm {
    opacity: 1;
    transform: scale(1);
}

/* ============
   Summary Area
   ============ */

.builder-summary {
    margin-top: 0;
    padding: 14px 18px;
    background: linear-gradient(135deg, rgba(59, 10, 10, 0.06), rgba(248, 244, 240, 0.9));
    border-radius: var(--charm-radius-lg);
    border: 1px solid rgba(59, 10, 10, 0.22);
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 10px 18px;
}

.builder-summary .price-box h3 {
    margin: 0;
    font-size: 18px;
    color: var(--charm-text-main);
}

.builder-summary .price-box span {
    font-weight: 700;
    color: var(--charm-primary-strong);
}

.builder-summary #builder-message {
    flex-basis: 100%;
    font-size: 13px;
    color: var(--charm-text-muted);
}

.builder-final-summary {
    margin-top: 16px;
    align-items: stretch;
}

.selected-charms-summary {
    width: 100%;
    background: rgba(255, 255, 255, 0.72);
    border: 1px solid rgba(59, 10, 10, 0.14);
    border-radius: 12px;
    padding: 10px 12px;
}

.selected-charms-summary .summary-heading {
    font-size: 13px;
    font-weight: 700;
    color: var(--charm-text-main);
    margin-bottom: 6px;
}

.selected-charms-summary .summary-empty {
    margin: 0;
    font-size: 12px;
    color: var(--charm-text-muted);
}

.selected-charms-summary .summary-list {
    list-style: none;
    margin: 0;
    padding: 0;
}

.selected-charms-summary .summary-list li,
.selected-charms-summary .summary-base,
.selected-charms-summary .summary-sub,
.selected-charms-summary .summary-grand {
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 10px;
    font-size: 12px;
    color: var(--charm-text-main);
    padding: 3px 0;
}

.selected-charms-summary .summary-grand {
    margin-top: 4px;
    padding-top: 6px;
    font-weight: 700;
    font-size: 13px;
}

.selected-charms-summary .summary-sep {
    margin: 4px 0;
    color: rgba(59, 10, 10, 0.5);
    font-size: 11px;
    letter-spacing: 0.08em;
    text-align: left;
}

.actions {
    display: flex;
    align-items: center;
    gap: 8px;
}

.builder-utility-actions {
    margin-top: 6px;
    display: flex;
    align-items: center;
    gap: 6px;
    flex-wrap: wrap;
}

.builder-utility-actions .button.icon-only {
    width: 32px;
    height: 32px;
    margin-left: 0 !important;
    border: none !important;
    background: transparent !important;
    box-shadow: none !important;
    padding: 0;
    display: inline-flex;
    align-items: center;
    justify-content: center;
}

.builder-utility-actions .button.icon-only i {
    color: var(--charm-primary) !important;
    font-size: 14px;
}

.builder-utility-actions .button.icon-only:hover {
    transform: scale(1.1);
}

.builder-utility-actions .button.icon-only:hover i {
    color: var(--charm-primary-strong) !important;
}

#quick-add-to-cart-btn,
#quick-reset-btn {
    background: transparent !important;
    border: none !important;
}

.actions .button {
    border-radius: 999px;
    padding: 8px 18px;
    font-size: 13px;
    font-weight: 600;
    letter-spacing: 0.02em;
    border: none;
    text-transform: none;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 6px;
}

.actions .button.icon-only {
    width: 40px;
    height: 40px;
    padding: 0;
    border-radius: 50%;
    font-size: 18px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.actions .button.icon-only i {
    color: var(--charm-text-main);
    transition: color var(--charm-transition-fast);
}

.actions .button.icon-only:hover i {
    color: #fff;
}

.actions .button.icon-only:hover {
    transform: scale(1.1);
}

.actions #add-to-cart-btn {
    background: linear-gradient(135deg, var(--charm-primary), var(--charm-primary-strong));
    color: #fff;
    box-shadow: 0 10px 20px rgba(59, 10, 10, 0.28);
}

.builder-final-summary .actions {
    width: 100%;
}

.builder-final-summary .actions #add-to-cart-btn {
    width: 100%;
    min-height: 44px;
    font-size: 14px;
}

.actions #add-to-cart-btn:hover {
    background: linear-gradient(135deg, var(--charm-primary-strong), #3b0a0a);
}

.actions #reset-builder-btn {
    background: rgba(248, 244, 240, 0.9);
    color: var(--charm-text-main);
    border: 1px solid rgba(59, 10, 10, 0.35);
}

.actions #reset-builder-btn:hover {
    background: #ffffff;
}

/* Icon Button Styles */
#download-design-btn,
#save-design-btn,
#load-design-btn,
#undo-btn,
#redo-btn {
    background: rgba(59, 10, 10, 0.08) !important;
    color: var(--charm-primary) !important;
    border: 1px solid rgba(59, 10, 10, 0.25) !important;
}

.builder-utility-actions #download-design-btn,
.builder-utility-actions #save-design-btn,
.builder-utility-actions #load-design-btn,
.builder-utility-actions #undo-btn,
.builder-utility-actions #redo-btn {
    background: rgba(59, 10, 10, 0.06) !important;
    border: 1px solid rgba(59, 10, 10, 0.1) !important;
    color: var(--charm-primary) !important;
}

#download-design-btn:hover,
#save-design-btn:hover,
#load-design-btn:hover,
#undo-btn:hover,
#redo-btn:hover {
    background: var(--charm-primary) !important;
    color: white !important;
    border-color: var(--charm-primary) !important;
}

#download-design-btn i,
#save-design-btn i,
#load-design-btn i,
#undo-btn i,
#redo-btn i {
    color: currentColor !important;
    transition: color 0.2s ease, transform 0.2s ease;
}

#download-design-btn:hover i,
#save-design-btn:hover i,
#load-design-btn:hover i,
#undo-btn:hover i,
#redo-btn:hover i {
    color: #ffffff !important;
    transform: scale(1.04);
}

#download-design-btn.is-busy {
    background: var(--charm-primary) !important;
    color: #ffffff !important;
    border-color: var(--charm-primary) !important;
}

#download-design-btn.is-busy i {
    color: #ffffff !important;
}

#undo-btn:disabled,
#redo-btn:disabled {
    opacity: 0.4;
    cursor: not-allowed;
}

.builder-sticky-cta {
    position: sticky;
    bottom: 10px;
    z-index: 30;
    background: rgba(248, 244, 240, 0.95);
    border: 1px solid rgba(59, 10, 10, 0.2);
    border-radius: 14px;
    padding: 8px;
    box-shadow: 0 6px 16px rgba(59, 10, 10, 0.12);
}

.builder-final-summary .builder-sticky-cta {
    background: transparent;
    border: none !important;
    box-shadow: none !important;
    padding: 0;
}

/* Canvas Circular Wheel Mode - Seamless 3D/2D Preview */
.canvas-container.wheel-mode {
    overflow: hidden;
    background: radial-gradient(circle at 50% 50%, #fefbf8 0%, #f4ece4 100%);
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 20px 0;
}

.canvas-container.wheel-mode::before {
    display: none;
}

.bracelet-wheel-container {
    width: 100%;
    height: 100%;
    min-height: 340px;
    position: relative;
    display: flex;
    align-items: center;
    justify-content: center;
    background: transparent;
    overflow: hidden;
    cursor: grab;
    touch-action: none;
}

.bracelet-wheel-container.is-spinning {
    cursor: grabbing;
}

.bracelet-wheel {
    position: relative;
    width: 280px;
    height: 280px;
    border-radius: 50%;
    transform-origin: center center;
    will-change: transform;
}

/* Biểu diễn dây vòng */
.base-chain-ring {
    position: absolute;
    inset: 0;
    border-radius: 50%;
    border-width: 5px;
    border-style: solid;
    border-color: var(--wheel-chain-color, #C0C0C0);
    box-shadow: 
        inset 0 4px 8px rgba(0,0,0,0.15),
        0 4px 12px rgba(0,0,0,0.1),
        0 0 0 1px rgba(255,255,255,0.5);
    z-index: 1;
}

/* Tạo độ nổi 3D cho dây */
.base-chain-ring::after {
    content: '';
    position: absolute;
    inset: -3px;
    border-radius: 50%;
    border: 2px solid rgba(255,255,255,0.4);
    mix-blend-mode: overlay;
    pointer-events: none;
}

/* Các hạt charm */
.wheel-charm-slot {
    position: absolute;
    width: 64px;
    height: 64px;
    left: 50%;
    top: 50%;
    margin-left: -32px;
    margin-top: -32px;
    z-index: 10;
    transform-origin: center center;
    display: flex;
    align-items: center;
    justify-content: center;
    filter: drop-shadow(0 6px 10px rgba(42, 13, 61, 0.2));
}

.wheel-charm-slot.wheel-charm-slot-long {
    width: 128px;
    margin-left: -64px;
}

.wheel-charm-slot.wheel-charm-slot-dangle img {
    height: auto !important;
    max-height: 250% !important; /* Mở rộng chiều cao charm thả */
    width: 120% !important; /* Làm to hơn khe */
    margin-left: -10%;
    object-position: bottom center !important;
    position: relative;
    top: 25%; /* Thả lỏng vòng qua khe bánh xe */
}

.wheel-charm-slot img {
    width: 100%;
    height: 100%;
    object-fit: contain;
}

/* Nút chỉ báo góc cuộn / Hướng dẫn */
.wheel-info-badge {
    position: absolute;
    bottom: 16px;
    left: 50%;
    transform: translateX(-50%);
    text-align: center;
    font-size: 13px;
    color: rgba(91, 13, 13, 0.9);
    background: rgba(255, 255, 255, 0.9);
    padding: 8px 16px;
    border-radius: 20px;
    box-shadow: 0 4px 12px rgba(59, 10, 10, 0.1);
    backdrop-filter: blur(4px);
    z-index: 150;
    font-weight: 600;
    pointer-events: none;
    white-space: nowrap;
}

.wheel-info-badge i {
    margin-right: 6px;
    animation: fadePulse 2s infinite;
}

@keyframes fadePulse {
    0% { opacity: 0.5; }
    50% { opacity: 1; transform: translateX(-3px); }
    100% { opacity: 0.5; }
}

@media (max-width: 768px) {
    .bracelet-wheel {
        width: 240px;
        height: 240px;
    }
    .wheel-charm-slot {
        width: 56px;
        height: 56px;
        margin-left: -28px;
        margin-top: -28px;
    }
    .wheel-charm-slot.wheel-charm-slot-long {
        width: 112px;
        margin-left: -56px;
    }
    .wheel-info-badge {
        font-size: 11px;
        padding: 6px 12px;
    }
}

/* ============
   Selection / Filters
   ============ */

.filters {
    margin-bottom: 6px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 10px;
}

.filters h3 {
    font-size: 16px;
    margin: 0;
    color: var(--charm-text-main);
}

.filters select {
    min-width: 140px;
    padding: 7px 11px;
    border-radius: 999px;
    border: 1.5px solid #d9b9a7;
    background: #ffffff;
    font-size: 13px;
    color: #3d1211;
    font-weight: 500;
    box-shadow: 0 2px 4px rgba(42, 13, 61, 0.12);
}

.filters select:focus {
    outline: none;
    border-color: var(--charm-primary);
    box-shadow: 0 0 0 2px var(--charm-primary-soft);
}

.charm-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(120px, 1fr));
    gap: 14px;
    max-height: 540px;
    overflow-y: auto;
    padding: 4px;
}

/* Horizontal view mode: more columns, compact layout */
.builder-layout.horizontal-view .charm-grid {
    grid-template-columns: repeat(auto-fill, minmax(100px, 1fr));
    gap: 12px;
    max-height: 400px;
}

.charm-grid::-webkit-scrollbar {
    width: 6px;
}

.charm-grid::-webkit-scrollbar-track {
    background: transparent;
}

.charm-grid::-webkit-scrollbar-thumb {
    background: rgba(209, 183, 232, 0.8);
    border-radius: 999px;
}

.charm-item {
    background: rgba(255, 255, 255, 0.95);
    border: 1px solid rgba(236, 225, 243, 0.9);
    border-radius: var(--charm-radius-md);
    padding: 10px 10px 11px;
    text-align: center;
    cursor: grab;
    transition: transform var(--charm-transition-normal), box-shadow var(--charm-transition-normal), border-color var(--charm-transition-fast), background-color var(--charm-transition-fast);
    user-select: none;
    position: relative;
}

.charm-item::before {
    content: "";
    position: absolute;
    inset: 0;
    border-radius: inherit;
    background: radial-gradient(circle at top, rgba(213, 122, 212, 0.06), transparent 65%);
    opacity: 0;
    transition: opacity var(--charm-transition-fast);
    pointer-events: none;
}

.charm-item:hover {
    transform: translateY(-3px);
    box-shadow: var(--charm-shadow-subtle);
    border-color: var(--charm-border-strong);
}

.charm-item:hover::before {
    opacity: 1;
}

.charm-item.charm-out-of-stock {
    opacity: 0.85;
    cursor: default;
}

.charm-item.charm-out-of-stock .add-charm-btn {
    opacity: 0.5;
    cursor: not-allowed;
    pointer-events: none;
}

.charm-out-of-stock-note {
    display: block;
    font-size: 11px;
    color: #8b3a2f;
    font-weight: 500;
    margin-top: 4px;
}

.charm-thumb {
    height: 80px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 8px;
}

.charm-thumb img {
    max-height: 100%;
    max-width: 100%;
}

.charm-item h4,
.charm-info h4 {
    font-size: 13px;
    font-weight: 600;
    margin: 0 0 4px;
    line-height: 1.35;
    color: #3d1211;
}

.charm-item .price,
.charm-info .price {
    font-size: 12px;
    color: var(--charm-primary-strong);
    font-weight: 600;
    display: block;
    margin-bottom: 4px;
}

.charm-item .button.small,
.charm-item .button {
    border-radius: 999px;
    padding: 4px 10px;
    font-size: 11px;
    text-transform: none;
    background: rgba(213, 122, 212, 0.1);
    color: var(--charm-primary-strong);
    border: 1px solid rgba(213, 122, 212, 0.35);
    box-shadow: none;
}

.charm-item .button.small:hover,
.charm-item .button:hover {
    background: var(--charm-primary);
    color: #fff;
}

/* ============================================
   Collections Gallery Preview
   ============================================ */

.collections-gallery {
    padding: 20px 0;
}

.collections-gallery h3 {
    font-size: 20px;
    font-weight: 600;
    margin: 0 0 25px;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 10px;
}

.collections-gallery h3 i {
    color: var(--charm-primary);
    font-size: 24px;
}

.gallery-container {
    position: relative;
    display: flex;
    align-items: center;
    gap: 15px;
    margin-bottom: 20px;
    width: 100%;
}

.gallery-slider {
    flex: 1;
    overflow: hidden;
    border-radius: var(--charm-radius-lg);
    width: 100%;
}

.gallery-track {
    display: flex;
    gap: 20px;
    transition: transform 0.3s ease;
    width: 100%;
}

.gallery-card {
    flex: 0 0 calc(33.333% - 13.33px);
    min-width: 200px;
    background: var(--charm-surface);
    border-radius: var(--charm-radius-md);
    padding: 20px;
    box-shadow: var(--charm-shadow-subtle);
    border: 1px solid var(--charm-border-subtle);
    transition: transform 0.2s ease, box-shadow 0.2s ease;
}

.gallery-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--charm-shadow-soft);
}

.gallery-card-inner {
    text-align: center;
}

.gallery-image-placeholder {
    width: 100%;
    height: 180px;
    background: var(--charm-bg-soft);
    border-radius: var(--charm-radius-sm);
    display: flex;
    align-items: center;
    justify-content: center;
    flex-direction: column;
    margin-bottom: 15px;
    overflow: hidden;
}

.gallery-image-placeholder img,
.gallery-image-placeholder i {
    color: #ddd;
}

.gallery-image-placeholder img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.gallery-card-title {
    font-size: 16px;
    font-weight: 600;
    color: var(--charm-text-main);
    margin: 0 0 12px;
}

.gallery-card-btn {
    width: 100%;
    padding: 8px 16px !important;
    font-size: 14px !important;
    border-radius: var(--charm-radius-sm) !important;
    background: var(--charm-primary) !important;
    color: white !important;
    border: none !important;
    transition: background 0.2s ease !important;
}

.gallery-card-btn:hover {
    background: var(--charm-primary-strong) !important;
    transform: none !important;
}

.gallery-nav {
    flex-shrink: 0;
    width: 44px;
    height: 44px;
    background: var(--charm-surface);
    border: 1px solid var(--charm-border-strong);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    transition: all 0.2s ease;
    color: var(--charm-text-main);
    z-index: 10;
    font-size: 18px;
    opacity: 1;
}

.gallery-nav i {
    color: inherit;
}

.gallery-nav:hover:not(:disabled) {
    background: var(--charm-primary);
    color: white;
    border-color: var(--charm-primary);
    transform: scale(1.1);
}

.gallery-nav:disabled {
    opacity: 0.3;
    cursor: not-allowed;
}

.gallery-dots {
    display: flex;
    justify-content: center;
    gap: 8px;
    margin-top: 15px;
}

.gallery-bottom-hint {
    margin: 10px 0 0;
    text-align: center;
    color: var(--charm-text-muted);
    font-size: 13px;
    font-style: italic;
}

.gallery-dot {
    width: 10px;
    height: 10px;
    border-radius: 50%;
    background: var(--charm-border-strong);
    cursor: pointer;
    transition: all 0.2s ease;
}

.gallery-dot.active {
    background: var(--charm-primary);
    transform: scale(1.3);
}

.gallery-dot:hover {
    opacity: 0.7;
}

/* Responsive Gallery */
@media (max-width: 1024px) {
    .gallery-card {
        flex: 0 0 calc(50% - 10px);
    }
}

@media (max-width: 768px) {
    .gallery-card {
        flex: 0 0 100%;
        min-width: 200px;
    }
    
    .gallery-container {
        gap: 0;
        width: 100%;
    }
    
    .gallery-nav {
        position: absolute;
        top: 50%;
        transform: translateY(-50%);
        width: 34px;
        height: 34px;
        font-size: 13px;
        z-index: 20;
        background: rgba(248, 244, 240, 0.62);
        border: 1px solid rgba(100, 25, 25, 0.18);
        color: rgba(100, 25, 25, 0.9);
        box-shadow: 0 4px 10px rgba(0, 0, 0, 0.08);
        backdrop-filter: blur(4px);
        -webkit-backdrop-filter: blur(4px);
        opacity: 0;
        pointer-events: none;
        transition: opacity 0.22s ease, transform 0.22s ease, background 0.2s ease, color 0.2s ease, border-color 0.2s ease;
    }

    .gallery-container.controls-visible .gallery-nav {
        opacity: 1;
        pointer-events: auto;
    }

    .gallery-nav.gallery-prev {
        left: 10px;
    }

    .gallery-nav.gallery-next {
        right: 10px;
    }
    
    .gallery-nav i {
        font-size: 14px;
    }

    .gallery-nav:hover:not(:disabled) {
        transform: translateY(-50%) scale(1.06);
        background: rgba(90, 42, 39, 0.74);
        color: #fadfb5;
        border-color: rgba(90, 42, 39, 0.78);
    }

    .gallery-nav:disabled {
        opacity: 0.2;
    }
}

/* ============================================
   V2: Slots Grid System (Bead-based Builder)
   ============================================ */

/* Canvas Info Bar */
.canvas-info-bar {
    margin-bottom: 10px;
    padding: 10px 15px;
    background: #f5f5f5;
    border-radius: 8px;
    font-size: 13px;
    color: #666;
    display: none; /* Hidden until chain is selected */
}

.canvas-info-bar span {
    margin-right: 15px;
}

/* Slots Grid Container */
.slots-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(50px, 1fr));
    gap: 8px;
    padding: 15px;
    background: rgba(255, 255, 255, 0.9);
    border-radius: var(--charm-radius-lg);
    border: 2px dashed var(--charm-border-subtle);
    min-height: 200px;
}

/* Placeholder Message */
.slots-placeholder {
    grid-column: 1 / -1;
    text-align: center;
    padding: 40px 20px;
    color: #999;
    font-style: italic;
    font-size: 15px;
}

/* Individual Slot */
.charm-slot {
    position: relative;
    width: 100%;
    aspect-ratio: 1;
    border: 2px solid var(--charm-border-subtle);
    border-radius: var(--charm-radius-sm);
    background: #fff;
    cursor: pointer;
    transition: all var(--charm-transition-fast);
    display: flex;
    align-items: center;
    justify-content: center;
    overflow: hidden;
}

.charm-slot:hover {
    border-color: var(--charm-primary);
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(90, 42, 39, 0.15);
}

.charm-slot.slot-hover {
    border-color: var(--charm-accent);
    background: rgba(250, 223, 181, 0.2);
    transform: scale(1.05);
}

/* Long Charm Slot (occupies 2 slots) */
.charm-slot-long {
    grid-column: span 2;
}

/* Long charm hover state */
.charm-slot.drag-over-long {
    border-color: var(--charm-primary);
    background: rgba(250, 223, 181, 0.4);
    transform: scale(1.05);
}

.slot-occupied-by-long-charm {
    background: #f0f0f0;
    border-style: dashed;
    pointer-events: none;
    opacity: 0.5;
}

.slot-occupied-by-long-charm .slot-overlay {
    font-size: 10px;
    color: #999;
    font-style: italic;
}

/* Dangle Charm (Occupies 1 slot but flows out bottom) */
.charm-slot-dangle {
    overflow: visible !important;
    align-items: flex-start !important;
    z-index: 10;
}

.charm-slot-dangle .decorated-charm {
    position: absolute;
    width: 60px; /* Làm to hơn khe mặc định 48px một chút để hiển thị rõ khoen charm */
    left: 50%;
    transform: translateX(-50%);
    top: 0;
}

.charm-slot-dangle .decorated-charm img {
    width: 100% !important;
    height: auto !important;
    max-height: 250% !important; /* Cho phép tràn lề dọc nhiều hơn */
    object-position: top center !important;
    position: relative;
    z-index: 10;
}

/* Base Bead */
.base-bead {
    width: 100%;
    height: 100%;
    display: flex;
    align-items: center;
    justify-content: center;
    position: relative;
    border-radius: var(--charm-radius-sm);
    overflow: hidden;
}

.base-bead-image {
    width: 80%;
    height: 80%;
    object-fit: contain;
    opacity: 0.9;
}

.slot-number {
    position: absolute;
    bottom: 2px;
    right: 2px;
    font-size: 9px;
    font-weight: 600;
    color: rgba(0, 0, 0, 0.3);
    background: rgba(255, 255, 255, 0.7);
    padding: 1px 4px;
    border-radius: 3px;
}

/* Decorated Charm */
.decorated-charm {
    width: 100%;
    height: 100%;
    object-fit: cover;
    border-radius: var(--charm-radius-sm);
}

/* Remove Charm Button */
.remove-charm-btn {
    position: absolute;
    top: -6px;
    right: -6px;
    width: 20px;
    height: 20px;
    border-radius: 50%;
    background: var(--charm-danger);
    color: #fff;
    border: 2px solid #fff;
    font-size: 14px;
    font-weight: 700;
    line-height: 1;
    cursor: pointer;
    display: none;
    transition: all var(--charm-transition-fast);
    z-index: 10;
}

.charm-slot:hover .remove-charm-btn {
    display: flex;
    align-items: center;
    justify-content: center;
}

.remove-charm-btn:hover {
    background: #c0394a;
    transform: scale(1.1);
}

/* Price Breakdown */
#price-breakdown {
    font-size: 13px;
    color: #666;
    margin-top: 8px;
    line-height: 1.6;
    border-top: 1px solid var(--charm-border-subtle);
    padding-top: 8px;
}

/* Charm Grid Improvements for V2 */
.charm-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(140px, 1fr));
    gap: 14px;
}

.charm-item {
    position: relative;
    cursor: grab;
    -webkit-user-select: none;
    user-select: none;
}

.charm-item.dragging {
    opacity: 0.5;
    cursor: grabbing;
}

.charm-item.drag-intent-active {
    outline: 2px dashed var(--charm-primary);
    outline-offset: 2px;
}

.touch-drag-ghost {
    position: fixed;
    width: 60px;
    height: 60px;
    pointer-events: none;
    z-index: 9999;
    border-radius: 10px;
    background: rgba(255, 255, 255, 0.9);
    border: 1px solid rgba(0, 0, 0, 0.08);
    box-shadow: 0 10px 20px rgba(0, 0, 0, 0.18);
    display: flex;
    align-items: center;
    justify-content: center;
}

.touch-drag-ghost img {
    width: 80%;
    height: 80%;
    object-fit: contain;
}

.charm-item.out-of-stock {
    opacity: 0.5;
    cursor: not-allowed;
}

.charm-item .charm-info {
    display: flex;
    flex-direction: column;
    gap: 4px;
}

/* Final charm card normalization: keep price/button aligned despite variable name lengths. */
.charm-grid {
    grid-auto-rows: 1fr;
}

.charm-item {
    display: flex;
    flex-direction: column;
    align-items: center;
    height: 100%;
}

.charm-item > img {
    width: 100%;
    height: 78px;
    object-fit: contain;
    margin-bottom: 8px;
}

/* Horizontal view mode: smaller images for compact display */
.builder-layout.horizontal-view .charm-item > img {
    height: 60px;
    margin-bottom: 6px;
}

.charm-item .charm-name {
    display: none !important;
}

/* Hide charm names for all selectable cards - per founder request. */
.builder-layout.horizontal-view .charm-item .charm-name {
    display: none !important;
    min-height: 0;
    margin: 0;
}

/* Hide full-name tooltips because selectable cards no longer reveal text labels. */
.builder-layout.horizontal-view .charm-item.show-full-name .charm-name::after,
.charm-item.show-full-name .charm-name::after {
    display: none !important;
}

.charm-item .price {
    margin: 0 0 8px;
}

.charm-item .badge {
    position: absolute;
    top: 6px;
    right: 6px;
    font-size: 10px;
    font-weight: 700;
    background: #ff9800;
    color: #fff;
    border-radius: 999px;
    padding: 2px 6px;
    z-index: 5;
}

/* Pre-order badge: warning gold tone */
.charm-item .badge-preorder {
    background: #FFF3CD;
    color: #C47C1A;
    border: 1px solid #F2E0A6;
}

/* Out-of-stock badge: muted gray */
.charm-item .badge-sold-out {
    background: #EDE5DF;
    color: #7A5C4A;
}

/* Disabled state for truly out-of-stock charms */
.charm-item.is-disabled {
    opacity: 0.45;
    pointer-events: none;
    cursor: not-allowed;
    filter: grayscale(40%);
}

.charm-item .add-charm-btn,
.charm-item .button {
    margin-top: auto;
}

.charm-item .add-charm-btn {
    display: none !important;
}


/* ========== VIEW MODE TOGGLE CONTROLS ========== */
.control-group > label,
.builder-column > h3,
.filters label {
    font-size: 16px !important;
    font-weight: 700 !important;
    line-height: 1.35;
    color: var(--charm-text-main);
}

.view-mode-toggle {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 4px;
    padding: 7px 10px;
    border: 2px solid #e0e0e0;
    border-radius: 6px;
    background: #ffffff;
    color: #555;
    font-size: 13px;
    font-weight: 500;
    cursor: pointer;
    transition: all 0.2s ease;
    min-width: 40px;
}

.view-mode-toggle:hover {
    border-color: var(--lc-primary, #d4a574);
    background: #fafafa;
    color: var(--lc-primary, #d4a574);
}

.view-mode-toggle.active {
    border-color: var(--lc-primary, #d4a574);
    background: var(--lc-primary, #d4a574);
    color: #ffffff;
}

.view-mode-toggle i {
    font-size: 12px;
}

.view-mode-toggle .view-mode-text {
    display: none;
}

.toggle-circular-btn .btn-3d-text {
    display: inline;
}

@media (max-width: 768px) {
    .view-mode-controls {
        padding: 8px 10px !important;
        gap: 6px !important;
    }
    
    .view-mode-controls label {
        font-size: 12px !important;
    }
    
    .view-mode-label {
        display: inline;
    }
    
    .view-mode-toggle-group {
        width: auto;
        flex: 1;
        justify-content: flex-end;
    }
    
    .view-mode-toggle {
        flex: 0 0 auto;
        padding: 8px 10px;
        font-size: 12px;
        min-width: 44px;
    }
    
    .view-mode-toggle .view-mode-text {
        display: none;
    }
    
    .view-mode-toggle i {
        font-size: 16px;
        margin: 0;
    }
}

/* Mobile landscape: force horizontal layout if screen is wider */
/* Only applies when not in forced vertical mode */
@media (max-width: 768px) and (orientation: landscape) {
    .builder-layout:not(.vertical-forced) {
        grid-template-columns: minmax(0, 0.95fr) minmax(0, 1.05fr) !important;
        gap: 10px !important;
    }
    
    .builder-layout:not(.vertical-forced) .builder-canvas-column {
        order: 1 !important;
    }
    
    .builder-layout:not(.vertical-forced) .builder-selection-column { order: 2 !important; }
    
    /* Apply horizontal view styles for landscape - hide charm names */
    .builder-layout:not(.vertical-forced) .charm-item .charm-name {
        display: none !important;
    }
    
    .builder-layout:not(.vertical-forced) .charm-grid { grid-template-columns: repeat(2, minmax(0, 1fr)) !important; gap: 10px !important; max-height: 300px !important; }
    
    .builder-layout:not(.vertical-forced) .charm-item > img {
        height: 55px !important;
    }
}

@media (max-width: 768px) {
    .builder-layout.vertical-forced {
        grid-template-columns: minmax(84px, 0.5fr) minmax(0, 1.5fr);
        gap: 10px;
        align-items: start;
    }

    .builder-layout.vertical-forced .builder-canvas-column > h3,
    .builder-layout.vertical-forced .builder-selection-column > h3 {
        display: none;
    }

    .builder-layout.vertical-forced .view-mode-controls label {
        display: none !important;
    }

    .builder-layout.vertical-forced .builder-canvas-column {
        align-items: center;
    }

    .builder-layout.vertical-forced .canvas-wrapper {
        padding: 6px;
    }

    .builder-layout.vertical-forced .canvas-container.vertical-mode {
        width: 84px;
        min-height: 300px;
        max-height: 62vh;
        margin: 0 auto;
    }

    .builder-layout.vertical-forced .builder-selection-column {
        max-height: min(68vh, 600px);
        overflow-y: auto;
    }
}

/* ========== SCROLL HINT ========== */
.canvas-wrapper {
    position: relative;
}

.canvas-scroll-hint {
    position: absolute;
    left: 50%;
    bottom: 8px;
    transform: translateX(-50%);
    z-index: 12;
    background: rgba(59, 10, 10, 0.84);
    color: #fff;
    border-radius: 999px;
    padding: 6px 12px;
    font-size: 12px;
    line-height: 1.2;
    pointer-events: none;
    opacity: 1;
    transition: opacity 0.25s ease, transform 0.25s ease;
}

.canvas-scroll-hint.is-hidden {
    opacity: 0;
    transform: translateX(-50%) translateY(8px);
}

/* INFO TOOLTIPS → MODAL-STYLE OVERLAY
   - Center on screen, large modal box
   - Support text + image content
   - Design system colors: bg #f8f4f0, border/text #3b0a0a
   ============================ */
.info-tooltip {
    position: relative;
    display: inline-block;
    margin-left: 4px;
    cursor: help;
    z-index: 100;
}

.info-tooltip i {
    color: var(--lc-primary, #d4a373);
    font-size: 14px;
    transition: color 0.2s ease;
}

.info-tooltip--compact i {
    font-size: 11px;
}

.info-tooltip:hover i {
    color: var(--lc-primary, #d4a373);
    opacity: 0.7;
}

/* Desktop: tooltip icon visible on hover (trigger) */
.info-tooltip::after {
    display: none;
}

.info-tooltip::before {
    display: none;
}

/* Modal overlay (created by JS) - centered full-screen */
.info-tooltip-modal-overlay {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.6);
    z-index: 3000;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 16px;
    opacity: 0;
    pointer-events: none;
    transition: opacity 0.3s ease;
}

.info-tooltip-modal-overlay.active {
    opacity: 1;
    pointer-events: auto;
}

.info-tooltip-modal-box {
    background: #f8f4f0;
    border: 2px solid #3b0a0a;
    border-radius: 12px;
    padding: 24px 20px 20px;
    padding-right: 56px;
    width: min(92vw, 860px);
    max-height: 88vh;
    overflow-y: auto;
    box-shadow: 0 8px 32px rgba(0, 0, 0, 0.3);
    position: relative;
}

.info-tooltip-modal-box h3 {
    margin: 0 0 16px;
    font-size: 18px;
    color: #3b0a0a;
    text-align: center;
}

.info-tooltip-modal-content {
    color: #3b0a0a;
    font-size: 14px;
    line-height: 1.6;
}

.info-tooltip-modal-content p {
    margin: 0 0 12px;
}

.info-tooltip-modal-content img {
    max-width: 100%;
    height: auto;
    border-radius: 8px;
    margin: 16px 0;
    border: 1px solid #3b0a0a;
}

.info-tooltip-modal-close {
    position: absolute;
    top: 10px;
    right: 10px;
    background: #3b0a0a;
    color: #f8f4f0;
    border: none;
    width: 28px;
    height: 28px;
    border-radius: 50%;
    cursor: pointer;
    font-size: 14px;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all 0.2s ease;
}

.info-tooltip-modal-close:hover {
    background: #5a2a27;
}

@media (max-width: 768px) {
    .info-tooltip-modal-box {
        width: min(94vw, 680px);
        padding: 20px 16px 16px;
        padding-right: 44px;
        max-height: 86vh;
    }

    .info-tooltip-modal-close {
        top: 8px;
        right: 8px;
        width: 24px;
        height: 24px;
        font-size: 12px;
    }
}

/* Canvas controls layout improvements */
.canvas-controls {
    display: flex;
    align-items: center;
    justify-content: flex-start;
    gap: 10px;
    margin-top: 12px;
}

@media (max-width: 768px) {
    .canvas-controls {
        flex-direction: row;
        align-items: center;
        flex-wrap: wrap;
    }
    
    .view-mode-controls {
        width: 100%;
    }
    
    .toggle-circular-btn {
        width: auto;
        justify-content: center;
    }
    
    .toggle-circular-btn .btn-3d-text {
        display: inline-block;
    }
}

/* Desktop layout for canvas controls */
@media (min-width: 769px) {
    .canvas-controls {
        flex-wrap: nowrap;
    }
    
    .view-mode-controls {
        flex: 1;
        min-width: 280px;
    }
    
    .toggle-circular-btn {
        flex-shrink: 0;
    }
}

/* Scroll hint on very small screens */
@media (max-width: 480px) {
    .canvas-scroll-hint {
        bottom: 6px;
        font-size: 11px;
        padding: 5px 10px;
    }
}

/* Ensure hint doesn't overlap with carousel controls */
.canvas-container.carousel-mode .canvas-scroll-hint {
    display: none;
}

/* Subtle transition for entering/exiting 3D focus mode */
#charm-builder-app .builder-canvas-column,
#charm-builder-app .builder-selection-column,
#charm-builder-app .builder-final-summary,
#charm-builder-app .control-group,
#charm-builder-app .builder-instructions,
#charm-builder-app .builder-utility-actions {
    transition: opacity 0.22s ease, transform 0.22s ease;
}

/* 3D focus mode: reduce noise and keep only carousel controls + close action visible */
#charm-builder-app.is-3d-focus .builder-instructions,
#charm-builder-app.is-3d-focus .control-group,
#charm-builder-app.is-3d-focus .builder-selection-column,
#charm-builder-app.is-3d-focus .builder-final-summary,
#charm-builder-app.is-3d-focus .builder-utility-actions,
#charm-builder-app.is-3d-focus .canvas-scroll-hint {
    display: none !important;
}

#charm-builder-app.is-3d-focus .builder-layout {
    grid-template-columns: 1fr !important;
}

#charm-builder-app.is-3d-focus .builder-canvas-column {
    max-width: 980px;
    margin: 0 auto;
    animation: lc-focus-canvas-in 0.22s ease;
}

#charm-builder-app.is-3d-focus .canvas-wrapper {
    padding: 14px;
}

#charm-builder-app.is-3d-focus .view-mode-controls {
    justify-content: flex-end !important;
}

#charm-builder-app.is-3d-focus .view-mode-controls label,
#charm-builder-app.is-3d-focus .view-mode-toggle-group .view-mode-toggle:not(.toggle-circular-btn) {
    display: none !important;
}

#charm-builder-app.is-3d-focus .toggle-circular-btn {
    display: inline-flex !important;
    min-width: 90px;
}

@keyframes lc-focus-canvas-in {
    from {
        opacity: 0.55;
        transform: scale(0.985);
    }
    to {
        opacity: 1;
        transform: scale(1);
    }
}

.charm-badge-long {
    display: inline-block;
    font-size: 10px;
    padding: 2px 6px;
    background: #ff9800;
    color: #fff;
    border-radius: 4px;
    font-weight: 600;
}

.charm-stock {
    font-size: 11px;
    color: #4caf50;
    font-weight: 500;
}

.out-of-stock-label {
    color: var(--charm-danger) !important;
    font-weight: 700;
}

/* Message Box */
#builder-message {
    margin-top: 10px;
    padding: 10px 15px;
    border-radius: var(--charm-radius-md);
    display: none;
    font-size: 14px;
}

#builder-message.msg-info {
    background: #e3f2fd;
    color: #1976d2;
    border-left: 4px solid #1976d2;
}

#builder-message.msg-error {
    background: #ffebee;
    color: #c62828;
    border-left: 4px solid #c62828;
}

#builder-message.msg-success {
    background: #e8f5e9;
    color: #2e7d32;
    border-left: 4px solid #2e7d32;
}

/* ============
   Responsive
   ============ */

@media (max-width: 992px) {
    .builder-layout {
        grid-template-columns: minmax(0, 1fr);
    }

    .builder-summary {
        margin-top: 8px;
    }
}

@media (max-width: 992px) and (orientation: landscape) {
    .builder-layout:not(.vertical-forced) {
        grid-template-columns: minmax(0, 0.92fr) minmax(0, 1.08fr);
        gap: 14px;
        align-items: start;
    }

    .builder-layout:not(.vertical-forced) .canvas-wrapper {
        padding: 10px;
    }

    .builder-layout:not(.vertical-forced) .canvas-container {
        height: 124px;
    }

    .builder-layout:not(.vertical-forced) .builder-selection-column {
        max-height: min(72vh, 560px);
        overflow-y: auto;
    }
}

@media (max-width: 768px) {
    #charm-builder-app {
        padding: 10px;
        border-radius: 18px;
    }

    .builder-layout {
        display: grid;
        grid-template-columns: minmax(112px, 0.88fr) minmax(0, 1.12fr);
        gap: 10px;
        align-items: start;
    }

    .builder-layout.vertical-forced {
        grid-template-columns: minmax(88px, 0.52fr) minmax(0, 1.48fr);
    }

    .builder-layout.vertical-forced .canvas-container.vertical-mode {
        width: 88px;
        min-height: 240px;
        max-height: 42vh;
        padding: 10px 0;
    }

    .builder-canvas-column {
        display: flex;
        flex-direction: column;
        gap: 10px;
    }

    .canvas-wrapper {
        padding: 8px;
        height: auto;
    }

    .builder-selection-column {
        height: auto;
        overflow-y: visible;
        gap: 8px;
        touch-action: pan-y;
        -webkit-overflow-scrolling: touch;
        overscroll-behavior: contain;
    }

    .builder-layout:not(.vertical-forced) .builder-selection-column {
        max-height: min(68vh, 560px);
        overflow-y: auto;
    }

    .canvas-container {
        height: 132px;
    }

    .builder-layout:not(.vertical-forced) .canvas-container {
        height: 122px;
    }

    .builder-summary {
        flex-direction: column;
        align-items: flex-start;
        width: 100%;
        order: 10;
        padding: 10px 12px;
        gap: 8px 12px;
    }

    .actions {
        width: 100%;
        justify-content: space-between;
        flex-wrap: wrap;
    }

    .builder-utility-actions {
        margin-top: 6px;
        gap: 6px;
    }

    .builder-sticky-cta {
        bottom: 8px;
        width: 100%;
    }

    .charm-grid {
        max-height: 380px;
        grid-template-columns: repeat(2, minmax(0, 1fr));
        touch-action: pan-y;
        -webkit-overflow-scrolling: touch;
    }

    .builder-layout.vertical-forced .charm-grid {
        grid-template-columns: repeat(auto-fill, minmax(70px, 1fr));
    }

    .charm-item {
        min-height: 122px;
    }
}

@media (max-width: 480px) {
    .builder-layout {
        grid-template-columns: minmax(104px, 0.84fr) minmax(0, 1.16fr);
        gap: 8px;
    }

    .builder-layout.vertical-forced {
        grid-template-columns: minmax(82px, 0.5fr) minmax(0, 1.5fr);
        align-items: start;
    }

    .builder-layout:not(.vertical-forced) .canvas-container {
        height: 112px;
    }

    .builder-layout.vertical-forced .canvas-container {
        width: 82px;
        min-height: 220px;
        height: 220px;
    }

    .charm-on-canvas {
        width: 52px;
        height: 52px;
    }

    .filters {
        flex-direction: column;
        align-items: flex-start;
    }

    .filters select {
        width: 100%;
    }
}

/* Extra mobile refinements */
@media (max-width: 600px) {
    .charm-grid::after {
        content: "💡 Kéo charm vào khung trên để thêm vào vòng";
        display: block;
        grid-column: 1 / -1;
        font-size: 12px;
        color: var(--charm-text-muted);
        text-align: center;
        padding: 10px;
        margin-top: 10px;
    }
    
    .control-group {
        margin-bottom: 10px;
    }
    
    .control-group select {
        font-size: 16px; /* Prevent zoom on iOS */
    }
}

/* ============================
   Builder UX Stabilization
   ============================ */

/* Responsive Adjustments for Wheel Mode */
.canvas-container.wheel-mode {
    min-height: 360px !important;
    height: clamp(340px, 62vh, 520px) !important;
    overflow: visible !important;
}


/* Mobile action strip: external controls block below preview + gallery */
.builder-mobile-action-strip {
    display: none;
}

@media (max-width: 768px) {
    .builder-mobile-action-strip.is-active {
        display: flex;
        flex-direction: column;
        gap: 8px;
        margin-top: 10px;
        margin-bottom: 12px;
        padding: 10px;
        border: 1px solid rgba(59, 10, 10, 0.16);
        border-radius: 12px;
        background: #fff;
        box-shadow: 0 4px 10px rgba(59, 10, 10, 0.08);
    }

    .builder-mobile-action-strip .canvas-controls {
        margin-top: 0;
        gap: 8px;
        flex-direction: column;
        align-items: stretch;
    }

    .builder-mobile-action-strip .view-mode-controls {
        width: 100%;
        min-width: 0 !important;
    }

    .builder-mobile-action-strip .view-mode-toggle-group {
        width: 100%;
        justify-content: space-between;
    }

    .builder-mobile-action-strip .builder-utility-actions {
        margin-top: 0;
        justify-content: center;
        gap: 10px;
    }

    .builder-mobile-action-strip .builder-utility-actions .button.icon-only {
        width: 36px;
        height: 36px;
    }
}

/* BA rule: vertical mode on mobile keeps preview and charm list side-by-side */
@media (max-width: 600px) {
    .builder-layout.vertical-forced {
        grid-template-columns: minmax(84px, 0.52fr) minmax(0, 1.48fr) !important;
        gap: 10px !important;
        align-items: start;
    }

    .builder-layout.vertical-forced .builder-canvas-column,
    .builder-layout.vertical-forced .builder-selection-column {
        min-width: 0;
        overflow: visible;
    }

    .builder-layout.vertical-forced .canvas-wrapper {
        padding: 6px;
    }

    .builder-layout.vertical-forced .canvas-container.vertical-mode {
        width: 84px !important;
        max-width: 84px !important;
        min-height: 220px !important;
        max-height: 54vh !important;
    }

    .builder-layout.vertical-forced #collections-gallery-container {
        margin-top: 4px;
    }
}

/* ============================
   Edge Scroll Hints (CR-G)
   ============================ */

.edge-hint {
    position: absolute;
    top: 0;
    bottom: 0;
    width: 32px;
    display: none; /* hidden by default, toggled via JS */
    align-items: center;
    justify-content: center;
    z-index: 50;
    pointer-events: none;
    color: var(--charm-primary);
    font-size: 14px;
    opacity: 0.85;
}

.edge-hint i {
    animation: pulseHint 1.5s infinite ease-in-out;
}

.edge-hint-left {
    left: 0;
    background: linear-gradient(to right, rgba(248, 244, 240, 0.95), rgba(248, 244, 240, 0));
}

.edge-hint-right {
    right: 0;
    background: linear-gradient(to left, rgba(248, 244, 240, 0.95), rgba(248, 244, 240, 0));
}

@keyframes pulseHint {
    0% { transform: scale(1); opacity: 0.6; }
    50% { transform: scale(1.3); opacity: 1; }
    100% { transform: scale(1); opacity: 0.6; }
}

/* ============================
   Brand Compliance Override (Option 2)
   Keep status colors, normalize builder UI to:
   - bg: #f8f4f0
   - text/border: #3b0a0a
   ============================ */
:root {
    --charm-bg: #f8f4f0;
    --charm-bg-soft: #f8f4f0;
    --charm-surface: #f8f4f0;
    --charm-border-subtle: rgba(59, 10, 10, 0.32);
    --charm-border-strong: rgba(59, 10, 10, 0.46);
    --charm-primary: #3b0a0a;
    --charm-primary-soft: rgba(59, 10, 10, 0.14);
    --charm-primary-strong: #3b0a0a;
    --charm-accent: #3b0a0a;
    --charm-text-main: #3b0a0a;
    --charm-text-muted: #3b0a0a;
}

#charm-builder-app,
.canvas-wrapper,
.canvas-container,
.builder-summary,
.selected-charms-summary,
.view-mode-controls,
.view-mode-toggle,
.builder-mobile-action-strip.is-active,
.charm-item,
.filters,
.control-group select,
.control-group .form-control {
    background: #f8f4f0 !important;
    color: #3b0a0a !important;
    border-color: #3b0a0a !important;
}

.view-mode-toggle.active,
.actions .button,
#quick-add-to-cart-btn,
#quick-reset-btn,
.builder-utility-actions .button.icon-only {
    color: #3b0a0a !important;
    border-color: #3b0a0a !important;
}

#add-to-cart-btn,
.actions #add-to-cart-btn,
.builder-final-summary .actions #add-to-cart-btn {
    color: #f8f4f0 !important;
}

.canvas-container.carousel-mode {
    background: #3b0a0a !important;
}

.canvas-container.carousel-mode .carousel-charms-info,
.canvas-container.carousel-mode .carousel-charm,
.canvas-container.carousel-mode .carousel-nav,
.canvas-container.carousel-mode .ring-charm-node {
    border-color: #f8f4f0 !important;
    color: #f8f4f0 !important;
}

/* UX Polish - Animations & Touch Targets added 06/04/2026 */
@keyframes charmPopIn {
    0% { transform: scale(0.5); opacity: 0; }
    80% { transform: scale(1.05); opacity: 1; }
    100% { transform: scale(1); opacity: 1; }
}

.charm-element-animated {
    animation: charmPopIn 0.35s cubic-bezier(0.175, 0.885, 0.32, 1.275) forwards;
}

.price-updating {
    transform: scale(1.15);
    color: var(--charm-primary-strong) !important;
}

#total-price-display {
    transition: transform 0.2s ease, color 0.2s ease;
    display: inline-block;
}

@media (max-width: 768px) {
    /* Mở rộng Touch Targets cho icon xóa charm */
    .placed-charm .remove-placed-charm,
    .remove-charm-btn {
        width: 44px !important;
        height: 44px !important;
        line-height: 44px !important;
        font-size: 18px !important;
        top: -14px !important;
        right: -14px !important;
        opacity: 0.9 !important; /* Luôn hiện đủ đậm trên mobile để dễ bấm */
    }
    
    .toggle-circular-btn {
        min-height: 44px !important;
        min-width: 44px !important;
    }
}

/* 3D BRACELET PERSPECTIVE (First-person View)
   Added 07/04/2026 - Enhances landing experience for customers
*/
.bracelet-wheel-container {
    position: relative;
    width: 320px;
    height: 320px;
    margin: 0 auto;
    perspective: 1200px; /* Độ sâu cho 3D perspective */
    display: flex;
    align-items: center;
    justify-content: center;
    overflow: visible !important;
    z-index: 100;
}

/* Hiệu ứng bóng đổ sàn để tăng chiều sâu */
.bracelet-wheel-container::after {
    content: "";
    position: absolute;
    bottom: 5%;
    left: 50%;
    transform: translateX(-50%) translateZ(-1px);
    width: 220px;
    height: 20px;
    background: radial-gradient(ellipse at center, rgba(59, 10, 10, 0.25) 0%, rgba(59, 10, 10, 0) 70%);
    border-radius: 50%;
    pointer-events: none;
    z-index: 1;
}

.bracelet-wheel {
    position: relative;
    width: 220px;
    height: 220px;
    transform-style: preserve-3d;
    transform: rotateX(85deg) rotateZ(0deg); /* Nghiêng góc nhìn thẳng trước mặt (Front-facing cylinder) */
    transition: transform 0.1s linear;
    z-index: 10;
}

.base-chain-ring {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    border-radius: 50%;
    border: 12px solid var(--wheel-chain-color, #C0C0C0);
    box-shadow: 
        inset 0 0 10px rgba(0,0,0,0.1),
        0 4px 8px rgba(0,0,0,0.15);
    background: transparent;
    pointer-events: none;
    z-index: 5;
}

.wheel-charm-slot {
    position: absolute;
    left: 50%;
    top: 50%;
    width: 48px;
    height: 48px;
    margin-left: -24px;
    margin-top: -24px;
    transform-style: preserve-3d;
    z-index: 15;
}

.wheel-charm-slot-long {
    width: 96px;
    margin-left: -48px;
}

.wheel-charm-slot-dangle img {
    height: auto !important;
    max-height: 250% !important;
    width: 120% !important;
    margin-left: -10%;
    object-position: bottom center !important;
    position: relative;
    top: 25%;
}

.wheel-charm-slot img {
    width: 100%;
    height: 100%;
    object-fit: contain;
    filter: drop-shadow(0 4px 6px rgba(0,0,0,0.12));
    /* Billboard: inline transform per-charm bù cả rotateZ(slot) + rotateX(wheel) */
    transform-origin: center center;
}

.wheel-info-badge {
    position: absolute;
    bottom: -32px;
    left: 50%;
    transform: translateX(-50%);
    background: rgba(59, 10, 10, 0.85);
    color: #fff;
    padding: 6px 14px;
    border-radius: 100px;
    font-size: 11px;
    white-space: nowrap;
    backdrop-filter: blur(4px);
    box-shadow: 0 4px 10px rgba(0,0,0,0.15);
    pointer-events: none;
}

.is-3d-focus .canvas-wrapper {
    /* removed perspective to prevent double tilt */
}

.is-3d-focus .canvas-container {
    background: #fdfaf7 !important;
    background-image: radial-gradient(#eee 1px, transparent 1px) !important;
    background-size: 20px 20px !important;
    /* removed rotateX to keep the frame flat while the 3D wheel rotates inside */
    transition: background 0.5s ease;
}

@media (max-width: 480px) {
    .bracelet-wheel-container {
        width: 280px;
        height: 280px;
        transform: scale(0.9);
    }
}