/* ============================================================
   Canvas 3D Customizer — Frontend Styles
   Inspired by CanvasChamp / CanvasPop UX patterns
   ============================================================ */

/* === Variables === */
:root {
    --c3d-primary:    #2c3e50;
    --c3d-accent:     #e67e22;
    --c3d-accent-h:   #d35400;
    --c3d-light:      #f8f9fa;
    --c3d-border:     #dee2e6;
    --c3d-radius:     10px;
    --c3d-shadow:     0 2px 12px rgba(0,0,0,.08);
    --c3d-green:      #27ae60;
    --c3d-red:        #e74c3c;
    --c3d-text:       #2d3436;
    --c3d-muted:      #636e72;
}

/* === Wrapper === */
#canvas3d-customizer-wrapper {
    margin: 24px 0 16px;
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    color: var(--c3d-text);
}

/* === Steps container === */
.c3d-steps {
    display: flex;
    flex-direction: column;
    gap: 0;
}

/* === Individual step === */
.c3d-step {
    border: 1px solid var(--c3d-border);
    border-radius: var(--c3d-radius);
    margin-bottom: 12px;
    background: #fff;
    box-shadow: var(--c3d-shadow);
    overflow: hidden;
    transition: box-shadow .2s;
}
.c3d-step:hover { box-shadow: 0 4px 18px rgba(0,0,0,.12); }

.c3d-step-header {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 14px 18px;
    background: var(--c3d-primary);
    color: #fff;
    font-weight: 600;
    font-size: 14px;
    letter-spacing: .3px;
    cursor: default;
}

.c3d-step-number {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 28px;
    height: 28px;
    border-radius: 50%;
    background: var(--c3d-accent);
    color: #fff;
    font-size: 13px;
    font-weight: 700;
    flex-shrink: 0;
}

.c3d-step-content {
    padding: 20px 18px;
}

/* === Upload Zone === */
.c3d-upload-zone {
    border: 2.5px dashed var(--c3d-border);
    border-radius: var(--c3d-radius);
    text-align: center;
    padding: 36px 20px;
    cursor: pointer;
    transition: border-color .2s, background .2s;
    background: var(--c3d-light);
    position: relative;
}
.c3d-upload-zone:hover,
.c3d-upload-zone.dragover {
    border-color: var(--c3d-accent);
    background: #fff8f2;
}
.c3d-upload-zone input[type="file"] {
    position: absolute;
    inset: 0;
    opacity: 0;
    cursor: pointer;
    width: 100%;
    height: 100%;
}
.c3d-upload-icon {
    font-size: 48px;
    display: block;
    margin-bottom: 12px;
    line-height: 1;
}
.c3d-upload-label {
    display: inline-block;
    background: var(--c3d-accent);
    color: #fff;
    padding: 10px 22px;
    border-radius: 6px;
    font-weight: 600;
    font-size: 14px;
    margin-bottom: 8px;
    transition: background .2s;
}
.c3d-upload-zone:hover .c3d-upload-label { background: var(--c3d-accent-h); }
.c3d-upload-sub {
    display: block;
    color: var(--c3d-muted);
    font-size: 12px;
    margin-top: 6px;
}

/* Upload progress / preview */
.c3d-upload-preview {
    display: none;
    align-items: center;
    gap: 14px;
    padding: 12px;
    background: var(--c3d-light);
    border-radius: var(--c3d-radius);
    border: 1px solid var(--c3d-border);
}
.c3d-upload-preview.visible { display: flex; }
.c3d-upload-thumb {
    width: 80px;
    height: 60px;
    object-fit: cover;
    border-radius: 6px;
    border: 1px solid var(--c3d-border);
    flex-shrink: 0;
}
.c3d-upload-info { flex: 1; }
.c3d-upload-info strong { display: block; font-size: 13px; }
.c3d-quality-badge {
    display: inline-block;
    margin-top: 4px;
    font-size: 11px;
    padding: 2px 8px;
    border-radius: 20px;
    font-weight: 600;
}
.c3d-quality-badge.ok   { background: #d5f5e3; color: var(--c3d-green); }
.c3d-quality-badge.low  { background: #fdecea; color: var(--c3d-red); }
.c3d-change-btn {
    background: none;
    border: 1px solid var(--c3d-border);
    padding: 6px 12px;
    border-radius: 6px;
    font-size: 12px;
    cursor: pointer;
    color: var(--c3d-muted);
    transition: all .2s;
}
.c3d-change-btn:hover { border-color: var(--c3d-accent); color: var(--c3d-accent); }

/* Upload spinner */
.c3d-spinner {
    display: none;
    align-items: center;
    gap: 10px;
    color: var(--c3d-muted);
    font-size: 13px;
    padding: 12px 0;
    justify-content: center;
}
.c3d-spinner.visible { display: flex; }
.c3d-spinner-ring {
    width: 22px;
    height: 22px;
    border: 3px solid var(--c3d-border);
    border-top-color: var(--c3d-accent);
    border-radius: 50%;
    animation: c3d-spin .7s linear infinite;
}
@keyframes c3d-spin { to { transform: rotate(360deg); } }

/* === Size Selector === */
.c3d-orientation-row {
    display: flex;
    gap: 8px;
    margin-bottom: 14px;
}
.c3d-orient-btn {
    flex: 1;
    padding: 8px;
    border: 2px solid var(--c3d-border);
    border-radius: 8px;
    background: #fff;
    cursor: pointer;
    font-size: 12px;
    font-weight: 600;
    color: var(--c3d-muted);
    transition: all .2s;
    text-align: center;
}
.c3d-orient-btn.active {
    border-color: var(--c3d-accent);
    color: var(--c3d-accent);
    background: #fff8f2;
}

.c3d-size-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(90px, 1fr));
    gap: 8px;
}
.c3d-size-btn {
    border: 2px solid var(--c3d-border);
    border-radius: 8px;
    padding: 10px 6px;
    background: #fff;
    cursor: pointer;
    text-align: center;
    font-size: 12px;
    font-weight: 600;
    transition: all .2s;
    color: var(--c3d-text);
    line-height: 1.3;
}
.c3d-size-btn:hover { border-color: var(--c3d-accent); }
.c3d-size-btn.active {
    border-color: var(--c3d-accent);
    background: var(--c3d-accent);
    color: #fff;
    box-shadow: 0 3px 10px rgba(230,126,34,.3);
}
.c3d-size-ratio {
    display: block;
    font-size: 10px;
    font-weight: 400;
    opacity: .75;
    margin-top: 2px;
}

/* === Wrap Style === */
.c3d-wrap-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(110px, 1fr));
    gap: 10px;
}
.c3d-wrap-btn {
    border: 2px solid var(--c3d-border);
    border-radius: 8px;
    padding: 14px 8px 10px;
    background: #fff;
    cursor: pointer;
    text-align: center;
    font-size: 12px;
    font-weight: 600;
    transition: all .2s;
    color: var(--c3d-text);
}
.c3d-wrap-btn:hover  { border-color: var(--c3d-accent); }
.c3d-wrap-btn.active {
    border-color: var(--c3d-accent);
    background: #fff8f2;
}
.c3d-wrap-icon {
    display: block;
    width: 50px;
    height: 36px;
    margin: 0 auto 8px;
    border-radius: 3px;
    overflow: hidden;
    position: relative;
}
.c3d-wrap-color-picker {
    margin-top: 10px;
    display: none;
}
.c3d-wrap-color-picker.visible { display: block; }
.c3d-wrap-color-picker label { font-size: 12px; color: var(--c3d-muted); }
.c3d-wrap-color-picker input[type="color"] {
    width: 40px; height: 30px;
    border: 1px solid var(--c3d-border);
    border-radius: 4px;
    cursor: pointer;
    padding: 2px;
    vertical-align: middle;
}

/* === 3D Preview === */
.c3d-preview-container {
    background: linear-gradient(135deg, #e8ecef 0%, #cfd8dc 100%);
    border-radius: var(--c3d-radius);
    overflow: hidden;
    position: relative;
    min-height: 500px;
    display: flex;
    align-items: center;
    justify-content: center;
}
.c3d-preview-canvas {
    display: block;
    max-width: 100%;
    touch-action: none;
    cursor: grab;
}
.c3d-preview-canvas:active { cursor: grabbing; }
.c3d-preview-placeholder {
    text-align: center;
    color: var(--c3d-muted);
    padding: 40px;
}
.c3d-preview-placeholder .c3d-upload-icon { opacity: .3; }
.c3d-rotate-hint {
    position: absolute;
    bottom: 10px;
    left: 50%;
    transform: translateX(-50%);
    background: rgba(0,0,0,.4);
    color: #fff;
    font-size: 11px;
    padding: 4px 12px;
    border-radius: 20px;
    pointer-events: none;
    white-space: nowrap;
}
.c3d-preview-info {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-top: 10px;
    padding: 10px 14px;
    background: var(--c3d-light);
    border-radius: 8px;
    border: 1px solid var(--c3d-border);
    font-size: 13px;
}
.c3d-preview-size { font-weight: 600; color: var(--c3d-primary); }
.c3d-preview-depth { color: var(--c3d-muted); font-size: 11px; }

/* === Price === */
.c3d-price-bar {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 14px 18px;
    background: var(--c3d-primary);
    border-radius: var(--c3d-radius);
    color: #fff;
    margin-top: 4px;
    margin-bottom: 16px;
}
.c3d-price-label { font-size: 13px; opacity: .8; }
.c3d-price-value { font-size: 26px; font-weight: 700; }

/* === Notice === */
.c3d-notice {
    padding: 10px 14px;
    border-radius: 8px;
    font-size: 13px;
    margin-bottom: 10px;
}
.c3d-notice.error   { background: #fdecea; color: var(--c3d-red); border: 1px solid #f5c6cb; }
.c3d-notice.success { background: #d5f5e3; color: var(--c3d-green); border: 1px solid #c3e6cb; }
.c3d-notice.info    { background: #d1ecf1; color: #0c5460; border: 1px solid #bee5eb; }

/* === Responsive === */
@media (max-width: 600px) {
    .c3d-size-grid { grid-template-columns: repeat(3, 1fr); }
    .c3d-wrap-grid { grid-template-columns: repeat(2, 1fr); }
    .c3d-preview-container { min-height: 240px; }
}

/* === Depth selector === */
.c3d-depth-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(140px, 1fr));
    gap: 10px;
}
.c3d-depth-btn {
    background: #fff;
    border: 2px solid #dfe6e9;
    border-radius: 10px;
    padding: 12px 10px;
    cursor: pointer;
    font-weight: 700;
    text-align: center;
    transition: all .18s ease;
}
.c3d-depth-btn:hover,
.c3d-depth-btn.active {
    border-color: var(--c3d-primary);
    box-shadow: 0 6px 16px rgba(0,0,0,.08);
}


/* === Desktop visibility fix for frame thickness selector === */
#canvas3d-customizer-wrapper #c3d-step-depth,
#canvas3d-customizer-wrapper #c3d-step-depth .c3d-step-content {
    display: block !important;
    visibility: visible !important;
    opacity: 1 !important;
    height: auto !important;
    overflow: visible !important;
}
#canvas3d-customizer-wrapper #c3d-depth-grid {
    display: grid !important;
    visibility: visible !important;
    opacity: 1 !important;
    height: auto !important;
    overflow: visible !important;
}
@media (min-width: 601px) {
    #canvas3d-customizer-wrapper .c3d-depth-grid {
        grid-template-columns: repeat(auto-fit, minmax(140px, 1fr)) !important;
    }
}