.gradient-tool{max-width:1100px;margin:0 auto}.gradient-split{display:grid;grid-template-columns:1fr 1fr;gap:24px;align-items:start;margin-bottom:24px}.gradient-left{display:flex;flex-direction:column;gap:20px;padding:24px;background-color:var(--bg-secondary);border:1px solid var(--border);border-radius:var(--radius-lg)}.gradient-right{position:relative}.gradient-sticky{position:sticky;top:80px;display:flex;flex-direction:column;gap:16px}.gradient-preview{width:100%;height:300px;border-radius:var(--radius-xl);border:1px solid var(--border);transition:background .15s ease}.control-group label{display:block;font-size:.85rem;font-weight:600;color:var(--text-secondary);margin-bottom:8px}.type-buttons{display:flex;gap:8px;flex-wrap:wrap}.type-btn,.shape-btn{padding:8px 16px;border:1px solid var(--border);border-radius:var(--radius);background-color:var(--bg);color:var(--text-secondary);font-size:.9rem;font-weight:600;cursor:pointer;transition:all .15s ease}.type-btn.active,.shape-btn.active{background-color:var(--primary);color:#fff;border-color:var(--primary)}.type-btn:hover:not(.active),.shape-btn:hover:not(.active){border-color:var(--primary);color:var(--primary)}input[type=range]{width:100%;-webkit-appearance:none;height:6px;border-radius:3px;background:var(--bg-tertiary);outline:none;padding:0}input[type=range]::-webkit-slider-thumb{-webkit-appearance:none;width:18px;height:18px;border-radius:50%;background:var(--primary);cursor:pointer;border:2px solid #fff;box-shadow:var(--shadow)}input[type=range]::-moz-range-thumb{width:18px;height:18px;border-radius:50%;background:var(--primary);cursor:pointer;border:2px solid #fff;box-shadow:var(--shadow)}.stops-bar{height:40px;border-radius:var(--radius);overflow:hidden;position:relative;cursor:pointer}.stops-track{width:100%;height:100%;position:relative}.stop-marker{position:absolute;top:-2px;width:14px;height:44px;border:2px solid #fff;border-radius:4px;transform:translate(-50%);cursor:grab;box-shadow:0 0 0 1px #0003,0 2px 4px #0003;z-index:2}.stop-marker:active{cursor:grabbing}.stops-list{display:flex;flex-direction:column;gap:8px;margin-top:12px}.stop-row{display:flex;align-items:center;gap:10px}.stop-color{width:40px!important;height:36px;padding:2px!important;border:1px solid var(--border);border-radius:var(--radius);cursor:pointer;flex-shrink:0}.stop-pos{flex:1}.stop-pos-val{font-size:.8rem;color:var(--text-secondary);min-width:40px;text-align:right}.stop-remove{width:28px;height:28px;border:none;border-radius:var(--radius);background-color:var(--error-bg);color:var(--error);font-size:1.1rem;cursor:pointer;display:flex;align-items:center;justify-content:center;flex-shrink:0}.stop-remove:hover{background-color:var(--error);color:#fff}.btn-sm{padding:6px 14px;font-size:.85rem}.presets-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:8px}.preset-card{height:56px;border-radius:var(--radius);cursor:pointer;border:2px solid transparent;display:flex;align-items:flex-end;justify-content:center;transition:all .15s ease;position:relative;overflow:hidden}.preset-card:hover{border-color:var(--primary);transform:translateY(-2px);box-shadow:var(--shadow-md)}.preset-name{font-size:.7rem;font-weight:600;color:#fff;text-shadow:0 1px 3px rgba(0,0,0,.5);padding:2px 6px;background:#0000004d;border-radius:4px}.css-output{padding:20px;background-color:#1e293b;border-radius:var(--radius-lg)}.output-header{display:flex;justify-content:space-between;align-items:center;margin-bottom:12px}.output-header h3{color:#e2e8f0;font-size:1rem}.css-output pre{background-color:#0f172a;border-radius:var(--radius);padding:14px;overflow-x:auto}.css-output code{color:#7dd3fc;font-family:Courier New,monospace;font-size:.85rem;line-height:1.6;word-break:break-all;white-space:pre-wrap}.faq-section{max-width:800px;margin:0 auto;padding:48px 0}.faq-section h2{font-size:1.75rem;margin-bottom:28px}.faq-item{margin-bottom:24px}.faq-item h3{font-size:1.1rem;margin-bottom:8px}.faq-item p{color:var(--text-secondary);line-height:1.7}.faq-item code{font-family:Courier New,monospace;background-color:var(--bg-tertiary);padding:2px 6px;border-radius:4px;font-size:.9rem}@media (max-width: 900px){.gradient-split{grid-template-columns:1fr}.gradient-sticky{position:static}.gradient-preview{height:200px}.presets-grid{grid-template-columns:repeat(4,1fr)}}@media (max-width: 768px){.presets-grid{grid-template-columns:repeat(3,1fr)}.stop-row{flex-wrap:wrap}}