:root {
    --bsd3d-color: #ffffff; 
    --bsd3d-side-color: #cccccc; 
    --bsd3d-light-color: #ffffff; 
    --bsd3d-mount-color: #1a1a1a; 
    --bsd3d-font: sans-serif;
    --bsd3d-font-size: 80px; 
}

.bsd3d-container { display: flex; flex-direction: column; gap: 15px; background: #f4f5f7; padding: 25px; border-radius: 12px; font-family: 'Inter', sans-serif; box-sizing: border-box; }
.bsd3d-container * { box-sizing: border-box; }

.bsd3d-full-width { width: 100%; }
.bsd3d-three-columns { display: grid; grid-template-columns: repeat(3, 1fr); gap: 15px; width: 100%; align-items: start;}

@media (max-width: 950px) {
    .bsd3d-three-columns { grid-template-columns: 1fr; }
}

.bsd3d-card { background: #ffffff; padding: 15px; border-radius: 8px; box-shadow: 0 2px 8px rgba(0,0,0,0.04); }
.bsd3d-control-block { margin-bottom: 0; }
.bsd3d-control-title { margin: 0 0 10px 0; font-size: 14px; color: #222; font-weight: 700; }

textarea#bsd3d-input-text { 
    width: 100% !important; 
    height: 48px !important; 
    min-height: 48px !important;
    max-height: 48px !important;
    font-size: 22px !important; 
    padding: 8px 15px !important; 
    text-align: center !important; 
    font-weight: bold !important; 
    text-transform: uppercase !important; 
    border: 1px solid #ddd !important; 
    border-radius: 8px !important; 
    resize: none !important; 
    outline: none !important; 
    box-sizing: border-box !important;
    transition: border-color 0.2s !important;
    line-height: 1.2 !important;
}
textarea#bsd3d-input-text:focus { 
    border-color: #0634c6 !important; 
    box-shadow: 0 0 0 2px rgba(6, 52, 198, 0.1) !important; 
}

.bsd3d-preview-area { 
    width: 100%; aspect-ratio: 21/7; min-height: 280px; 
    background-color: #333; background-size: cover; background-position: center; 
    border-radius: 12px; position: relative; overflow: hidden; 
    box-shadow: 0 5px 15px rgba(0,0,0,0.1); 
    display: flex; align-items: center; justify-content: center;
}

@media (max-width: 768px) {
    .bsd3d-preview-area { aspect-ratio: 16/9; min-height: 180px; }
    textarea#bsd3d-input-text { font-size: 18px !important; height: 42px !important; min-height: 42px !important;}
}

.bsd3d-drag-container { position: relative; cursor: grab; display: flex; align-items: center; justify-content: center; z-index: 10; }
.bsd3d-drag-container:active { cursor: grabbing; }

#bsd3d-mount-layer { display: flex; align-items: center; justify-content: center; transition: all 0.2s ease; font-size: var(--bsd3d-font-size); }
.bsd3d-mount-none { padding: 0; }
.bsd3d-mount-frame { padding: 0.15em 0.3em; background: linear-gradient(transparent 30%, #555 30%, #333 35%, transparent 35%, transparent 65%, #555 65%, #333 70%, transparent 70%); box-shadow: 0 5px 15px rgba(0,0,0,0.4); border-radius: 2px; }
.bsd3d-mount-composite { padding: 0.3em 0.5em; background-color: var(--bsd3d-mount-color); border: 1px solid rgba(0,0,0,0.2); border-radius: 0; box-shadow: inset 0 0 20px rgba(255,255,255,0.05), 0 15px 30px rgba(0,0,0,0.6); }

.bsd3d-text-element {
    font-family: var(--bsd3d-font); font-size: var(--bsd3d-font-size); color: var(--bsd3d-color); 
    text-align: center; white-space: pre-wrap; line-height: 1.1; font-weight: 800; transition: all 0.2s ease;
    text-shadow: 1px 1px 0px var(--bsd3d-side-color), 2px 2px 0px var(--bsd3d-side-color), 3px 3px 0px var(--bsd3d-side-color), 4px 4px 0px var(--bsd3d-side-color), 5px 5px 0px var(--bsd3d-side-color), 6px 6px 0px var(--bsd3d-side-color), 7px 7px 0px var(--bsd3d-side-color), 8px 8px 0px var(--bsd3d-side-color), 12px 12px 15px rgba(0,0,0,0.4);
}

.bsd3d-text-element[data-light="front"] {
    text-shadow: 0 0 8px var(--bsd3d-light-color), 0 0 20px var(--bsd3d-light-color), 1px 1px 0px var(--bsd3d-side-color), 2px 2px 0px var(--bsd3d-side-color), 3px 3px 0px var(--bsd3d-side-color), 4px 4px 0px var(--bsd3d-side-color), 5px 5px 0px var(--bsd3d-side-color), 6px 6px 0px var(--bsd3d-side-color), 7px 7px 0px var(--bsd3d-side-color), 8px 8px 0px var(--bsd3d-side-color), 12px 12px 15px rgba(0,0,0,0.4);
}

.bsd3d-text-element[data-light="back"] {
    text-shadow: 1px 1px 0px var(--bsd3d-side-color), 2px 2px 0px var(--bsd3d-side-color), 3px 3px 0px var(--bsd3d-side-color), 4px 4px 0px var(--bsd3d-side-color), 5px 5px 0px var(--bsd3d-side-color), 6px 6px 0px var(--bsd3d-side-color), 7px 7px 0px var(--bsd3d-side-color), 8px 8px 0px var(--bsd3d-side-color), 0 0 20px var(--bsd3d-light-color), 0 0 40px var(--bsd3d-light-color);
}

.bsd3d-font-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(100px, 1fr)); gap: 10px; max-height: 160px; overflow-y: auto; }
.bsd3d-font-btn { padding: 10px 5px; background: #fff; border: 1px solid #ddd; border-radius: 6px; cursor: pointer; text-align: center; font-size: 14px;}
.bsd3d-font-btn.active { border-color: #0634c6; box-shadow: 0 0 0 1px #0634c6; }

.bsd3d-color-palette { display: flex; gap: 6px; flex-wrap: wrap; margin-bottom: 8px;}
.bsd3d-color-btn, .bsd3d-side-btn, .bsd3d-light-color-btn, .bsd3d-mount-color-btn { width: 30px; height: 30px; border-radius: 50%; border: 2px solid #ccc; cursor: pointer; transition: 0.2s;}
.bsd3d-color-btn.active, .bsd3d-side-btn.active, .bsd3d-light-color-btn.active, .bsd3d-mount-color-btn.active { transform: scale(1.1); border-color: #0634c6; box-shadow: inset 0 0 0 2px #fff;}

.bsd3d-expand-btn { background: none; border: none; color: #0634c6; cursor: pointer; font-size: 12px; font-weight: bold; padding: 0; text-decoration: underline; display: inline-flex; align-items: center; gap: 5px; margin-top: 5px;}
.bsd3d-expand-btn span { font-size: 10px; }
.bsd3d-extended-palette { margin-top: 8px; padding-top: 8px; border-top: 1px solid #eee; display: flex; gap: 6px; flex-wrap: wrap; }

.bsd3d-bg-selector { display: flex; gap: 10px; flex-wrap: wrap; margin-top: 10px;}
.bsd3d-bg-btn { width: 45px; height: 45px; background-size: cover; border-radius: 6px; border: 2px solid transparent; cursor: pointer; transition: 0.2s;}
.bsd3d-bg-btn.active { border-color: #0634c6; transform: scale(1.05);}
.bsd3d-bg-upload-label { width: 45px; height: 45px; border: 1px dashed #aaa; border-radius: 6px; display: flex; align-items: center; justify-content: center; font-size: 10px; cursor: pointer; background: #fff; text-align: center; }
.bsd3d-bg-upload-label input { display: none; }

.bsd3d-slider-wrapper { display: flex; align-items: center; gap: 10px; }
input[type="range"] { flex-grow: 1; accent-color: #0634c6; }
#bsd3d-size-display { font-weight: bold; font-size: 14px; min-width: 45px;}

.bsd3d-btn-group { display: flex; flex-wrap: wrap; gap: 8px; }
.bsd3d-option-btn { flex: 1; min-width: 30%; padding: 10px; background: #fff; border: 1px solid #0634c6; color: #0634c6; border-radius: 6px; cursor: pointer; font-weight: bold; font-size: 11px; transition: 0.2s; text-align: center;}
.bsd3d-option-btn:hover { background: #f0f4ff; }
.bsd3d-option-btn.active { background: #0634c6; color: #fff; }

.bsd3d-summary-box { background: #eef2f7; border: 1px solid #dce4ec; border-radius: 8px; padding: 15px; }
.bsd3d-summary-row { display: flex; justify-content: space-between; font-size: 12px; margin-bottom: 8px; color: #555;}
.bsd3d-summary-row b { color: #111; font-size: 13px; }
.bsd3d-summary-price { display: flex; justify-content: space-between; align-items: center; border-top: 1px solid #cbd5e1; padding-top: 10px; margin-top: 10px; font-size: 14px; color: #d32f2f; font-weight: bold; }
.bsd3d-summary-price span { font-size: 20px; color: #d32f2f;}

/* КНОПКА СКАЧАТЬ МАКЕТ */
.bsd3d-dl-btn { width: 100%; padding: 12px 20px; border: none; border-radius: 6px; font-weight: bold; cursor: pointer; text-transform: uppercase; transition: 0.2s; margin-bottom: 15px; font-size: 13px;}
.bsd3d-dl-btn:hover { opacity: 0.9; }

.bsd3d-form-card { background: #ffffff; padding: 20px 20px; border-radius: 8px; text-align: center; border: 1px solid #e2e8f0; }
.bsd3d-form-title { margin: 0 0 15px 0; font-size: 18px; font-weight: bold; color: #111;}
.bsd3d-form-fields input { width: 100%; padding: 12px; margin-bottom: 12px; border: 1px solid #cbd5e1; border-radius: 6px; outline: none; box-sizing: border-box; transition: 0.2s;}
.bsd3d-form-fields input:focus { border-color: #0634c6; box-shadow: 0 0 0 2px rgba(6, 52, 198, 0.1); }
.bsd3d-submit-btn { width: 100%; padding: 14px 20px; background: #0634c6; color: #fff; border: none; border-radius: 6px; font-weight: bold; cursor: pointer; text-transform: uppercase; transition: 0.2s; font-size: 14px;}
.bsd3d-submit-btn:hover { opacity: 0.9; }
.bsd3d-submit-btn:disabled { background: #999; cursor: not-allowed;}