#gb-wrap{max-width:1000px;margin:0 auto;padding:40px 24px 80px}

.gb-layout{display:grid;grid-template-columns:1fr 320px;gap:24px;align-items:start}

/* Preview scene */
.gb-scene{border-radius:28px;overflow:hidden;position:relative;aspect-ratio:4/3;box-shadow:0 4px 32px rgba(0,0,0,0.12)}
.gb-bg{position:absolute;inset:0;width:100%;height:100%}
.gb-card-wrap{position:absolute;inset:0;display:flex;align-items:center;justify-content:center;padding:32px}
.gb-card{width:100%;max-width:340px;border-radius:var(--gb-radius,16px);padding:28px 32px;position:relative;overflow:hidden;transition:all .2s}

/* Fake card content */
.gb-card-avatar{width:44px;height:44px;border-radius:50%;background:rgba(255,255,255,0.4);margin-bottom:16px}
.gb-card-title{font-size:18px;font-weight:700;color:#fff;margin-bottom:6px;letter-spacing:-.01em}
.gb-card-desc{font-size:13px;color:rgba(255,255,255,0.75);line-height:1.5;margin-bottom:20px}
.gb-card-row{display:flex;gap:10px}
.gb-card-btn{padding:8px 16px;border-radius:8px;background:rgba(255,255,255,0.25);color:#fff;font-size:12px;font-weight:600;border:1px solid rgba(255,255,255,0.3)}
.gb-card-btn.primary{background:rgba(255,255,255,0.9);color:#111}

/* Panel */
.gb-panel{display:flex;flex-direction:column;gap:14px}
.gb-card-p{background:#fff;border:1px solid #F0F0F0;border-radius:24px;padding:16px;box-shadow:0 1px 3px rgba(0,0,0,0.04)}
.gb-card-title-p{font-weight:600;text-transform:uppercase;color:#6E6E78;margin-bottom:12px}

/* Background presets */
.gb-bg-presets{display:grid;grid-template-columns:repeat(4,1fr);gap:8px}
.gb-bg-preset{height:44px;border-radius:14px;cursor:pointer;border:2px solid transparent;transition:all .15s}
.gb-bg-preset:hover{transform:scale(1.05)}
.gb-bg-preset.on{border-color:#111;box-shadow:0 0 0 2px #111}

/* Sliders */
.gb-slider-row{display:flex;flex-direction:column;gap:5px;margin-bottom:12px}
.gb-slider-row:last-child{margin-bottom:0}
.gb-slider-label{display:flex;justify-content:space-between;align-items:center}
.gb-slider-label span{font-weight:500;color:#555}
.gb-slider-val{font-size:12px;color:#55555F;font-family:'SF Mono','Fira Code',monospace;background:#F5F5F5;padding:2px 7px;border-radius:999px}
input[type=range]{width:100%;height:4px;border-radius:2px;appearance:none;background:#E8E8E8;outline:none;cursor:pointer}
input[type=range]::-webkit-slider-thumb{appearance:none;width:16px;height:16px;border-radius:50%;background:#111;cursor:pointer;box-shadow:0 1px 4px rgba(0,0,0,0.2)}

/* Color row */
.gb-color-row{display:flex;align-items:center;gap:10px;margin-bottom:8px}
.gb-color-row:last-child{margin-bottom:0}
.gb-color-swatch{width:34px;height:34px;border-radius:14px;border:2px solid #F0F0F0;cursor:pointer;flex-shrink:0}
.gb-color-hex{flex:1;padding:8px 10px;border-radius:999px;border:1.5px solid #E8E8E8;font-size:12px;font-family:'SF Mono','Fira Code',monospace;color:#111;outline:none}
.gb-color-hex:focus{border-color:#111}
.gb-color-label{font-size:11px;font-weight:600;color:#6E6E78;width:44px;flex-shrink:0}

/* Border style options */
.gb-border-btns{display:grid;grid-template-columns:repeat(3,1fr);gap:6px}
.gb-border-btn{padding:7px;border-radius:999px;border:1.5px solid #E8E8E8;background:#fff;font-size:11px;font-weight:500;color:#666;cursor:pointer;text-align:center}
.gb-border-btn:hover{border-color:#CCC}
.gb-border-btn.on{background:#111;color:#fff;border-color:#111}

/* Output */
.gb-output{background:#F8F8F8;border:1px solid #F0F0F0;border-radius:20px;padding:14px;position:relative}
.gb-output-label{font-size:10px;font-weight:600;text-transform:uppercase;letter-spacing:.1em;color:#6E6E78;margin-bottom:8px}
.gb-output pre{margin:0;font-family:'SF Mono','Fira Code',monospace;white-space:pre-wrap;word-break:break-all;color:#333;max-height:220px;overflow:auto;padding-right:50px}
.gb-copy-btn{position:absolute;top:10px;right:10px;padding:3px 8px;border-radius:999px;border:1px solid #E0E0E0;background:#fff;font-size:11px;font-weight:500;cursor:pointer;color:#666}
.gb-copy-btn:hover{background:#111;color:#fff;border-color:#111}
.gb-copy-btn.ok{background:#F0FDF4;border-color:#BBF7D0;color:#166534}

/* Actions */
.gb-actions{display:flex;gap:8px;flex-wrap:wrap;margin-top:4px}
.gb-btn{border-radius:999px;border:none;font-weight:600;cursor:pointer}
.gb-btn-primary{background:#111;color:#fff}
.gb-btn-primary:hover{background:#333}
.gb-btn-secondary{background:#F4F4F5;color:#444;border:1px solid #E4E4E7}
.gb-btn-secondary:hover{background:#E4E4E7}
.gb-btn-share{background:#F0F9FF;color:#0369A1;border:1px solid #BAE6FD}

/* WCAG badge */
.gb-wcag{margin-top:10px;padding:10px 12px;border-radius:14px;font-size:12px;font-weight:500;display:flex;align-items:center;gap:8px}
.gb-wcag.pass{background:#F0FDF4;color:#166534}
.gb-wcag.fail{background:#FFF1F2;color:#BE123C}
.gb-wcag.borderline{background:#FFFBEB;color:#B45309}
.gb-wcag-dot{width:8px;height:8px;border-radius:50%;flex-shrink:0}
.gb-wcag.pass .gb-wcag-dot{background:#22C55E}
.gb-wcag.fail .gb-wcag-dot{background:#F43F5E}
.gb-wcag.borderline .gb-wcag-dot{background:#F59E0B}

/* Toast */
.gb-toast{position:fixed;bottom:24px;left:50%;transform:translateX(-50%) translateY(80px);background:#111;color:#fff;padding:12px 24px;border-radius:50px;font-size:14px;font-weight:500;transition:transform .3s;z-index:9999;white-space:nowrap;pointer-events:none}
.gb-toast.show{transform:translateX(-50%) translateY(0)}

@media(max-width:768px){.gb-layout{grid-template-columns:1fr}.gb-scene{aspect-ratio:3/2}}