.responsive-image-generator{min-height:auto;background:linear-gradient(135deg,#1a1a2e,#16213e);padding:2rem;color:#fff}.responsive-image-generator h1{text-align:center;margin-bottom:.5rem;font-size:2.5rem;background:linear-gradient(135deg,#667eea,#764ba2);-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text}.responsive-image-generator .tool-description{text-align:center;color:#a0a0a0;margin-bottom:2rem}.rig-container{display:grid;grid-template-columns:1fr 1fr;gap:var(--tool-content-gap, 2rem);max-width:var(--tool-container-max-width, 1600px);margin:0 auto}.rig-controls{display:flex;flex-direction:column;gap:1.5rem}.control-section{background:#ffffff14;border-radius:12px;padding:1.5rem;border:2px solid rgba(255,255,255,.25)}.control-section h3{font-size:1.15rem;font-weight:700;color:var(--gray-900);margin-bottom:1.25rem;padding-bottom:.75rem;border-bottom:2px solid var(--primary);letter-spacing:.03em}.control-section:last-child{margin-bottom:0;padding-bottom:0;border-bottom:none}.form-group{margin-bottom:1rem}.form-group:last-child{margin-bottom:0}.form-group label{display:block;margin-bottom:.5rem;color:var(--gray-900);font-size:1rem;font-weight:600;line-height:1.5;letter-spacing:.3px}.form-group input[type=text],.form-group input[type=number],.form-group textarea,.form-group select{width:100%;padding:.75rem;border:2px solid rgba(255,255,255,.35);border-radius:8px;background:#0000004d;color:#fff;font-size:.95rem;transition:border-color .3s,box-shadow .3s}.form-group input:focus,.form-group textarea:focus,.form-group select:focus{outline:none;border-color:#667eea;box-shadow:0 0 0 3px #667eea33}.form-group small{display:block;margin-top:.5rem;color:#888;font-size:.8rem}.form-row{display:grid;grid-template-columns:1fr 1fr;gap:1rem}.form-group input[type=range]{width:100%;height:6px;-webkit-appearance:none;background:#fff3;border-radius:3px;cursor:pointer}.form-group input[type=range]::-webkit-slider-thumb{-webkit-appearance:none;width:18px;height:18px;background:#667eea;border-radius:50%;cursor:pointer}.preset-buttons{display:flex;flex-wrap:wrap;gap:.5rem}.preset-btn{padding:.5rem 1rem;background:#667eea33;border:1px solid rgba(102,126,234,.3);border-radius:6px;color:#667eea;font-size:.85rem;cursor:pointer;transition:all .3s}.preset-btn:hover{background:#667eea4d;border-color:#667eea}.breakpoints-list{display:flex;flex-direction:column;gap:.5rem;margin-bottom:1rem}.breakpoint-item{display:flex;align-items:center;gap:.5rem}.bp-width{width:80px!important;flex-shrink:0}.bp-unit{color:#888;font-size:.85rem}.bp-suffix{flex:1;min-width:0}.remove-bp-btn{width:32px;height:32px;padding:0;background:#ef444433;border:1px solid rgba(239,68,68,.3);border-radius:6px;color:var(--danger);font-size:1.2rem;cursor:pointer;transition:all .3s;flex-shrink:0}.remove-bp-btn:hover:not(:disabled){background:#ef44444d}.remove-bp-btn:disabled{opacity:.5;cursor:not-allowed}.add-bp-btn{width:100%;padding:.75rem;background:#667eea33;border:1px dashed rgba(102,126,234,.5);border-radius:8px;color:#667eea;font-size:.875rem;cursor:pointer;transition:all .3s}.add-bp-btn:hover{background:#667eea4d;border-style:solid}.options-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(140px,1fr));gap:.75rem}.checkbox-label{display:flex;align-items:center;gap:.5rem;color:var(--gray-900);font-size:1rem;cursor:pointer}.checkbox-label input[type=checkbox]{width:18px;height:18px;accent-color:var(--gray-900);cursor:pointer}.format-buttons{display:flex;flex-wrap:wrap;gap:.5rem}.format-btn{padding:.5rem 1rem;background:#ffffff26;border:2px solid rgba(255,255,255,.35);border-radius:6px;color:#ccc;font-size:.85rem;cursor:pointer;transition:all .3s}.format-btn:hover{background:#ffffff26}.format-btn.active{background:#667eea4d;border-color:#667eea;color:#667eea}.saved-sets-list{display:flex;flex-direction:column;gap:.5rem}.saved-set-item{display:flex;justify-content:space-between;align-items:center;padding:.5rem .75rem;background:#ffffff14;border-radius:6px}.saved-set-item span{cursor:pointer;color:#ccc;transition:color .3s}.saved-set-item span:hover{color:#667eea}.saved-set-item button{width:24px;height:24px;padding:0;background:transparent;border:none;color:#888;font-size:1.2rem;cursor:pointer;transition:color .3s}.saved-set-item button:hover{color:var(--danger)}.rig-output{display:flex;flex-direction:column;gap:1.5rem}.output-header{display:flex;justify-content:space-between;align-items:center}.output-header h3{margin:0;color:#667eea}.output-actions{display:flex;gap:.5rem}.save-btn,.copy-btn{padding:.5rem 1rem;border-radius:6px;font-size:.875rem;cursor:pointer;transition:all .3s}.save-btn{background:#ffffff26;border:2px solid rgba(255,255,255,.35);color:#ccc}.save-btn:hover{background:#ffffff26}.copy-btn{background:linear-gradient(135deg,#667eea,#764ba2);border:none;color:#fff}.copy-btn:hover{transform:translateY(-1px);box-shadow:0 4px 12px #667eea66}.code-output{background:#0006;border-radius:12px;padding:1.5rem;border:2px solid rgba(255,255,255,.25);overflow-x:auto;margin:0}.code-output code{color:#a5d6ff;font-family:Fira Code,Monaco,monospace;font-size:.85rem;line-height:1.6;white-space:pre-wrap;word-break:break-all}.preview-section{background:#f9fafb;border-radius:12px;padding:1.5rem;border:2px solid #d1d5db;box-shadow:0 1px 3px #0000001a}.preview-section h3{margin:0 0 1rem;color:#667eea;font-size:1rem}.breakpoint-viz{display:flex;flex-direction:column;gap:.75rem}.bp-viz-item{display:flex;flex-direction:column;gap:.25rem}.bp-viz-bar{height:32px;background:linear-gradient(135deg,#667eea,#764ba2);border-radius:6px;display:flex;align-items:center;padding:0 .75rem;min-width:60px}.bp-viz-label{color:#fff;font-size:.8rem;font-weight:500;white-space:nowrap}.bp-viz-retina{height:20px;background:#667eea4d;border-radius:4px;display:flex;align-items:center;padding:0 .5rem;margin-left:1rem}.bp-viz-retina span{color:#888;font-size:.7rem}.tips-section{background:#ffffff14;border-radius:12px;padding:1.5rem;border:2px solid rgba(255,255,255,.25)}.tips-section h3{margin:0 0 1rem;color:#667eea;font-size:1rem}.tips-section ul{margin:0;padding-left:1.25rem;color:#a0a0a0;font-size:.875rem;line-height:1.8}.tips-section li strong{color:#ccc}.control-panel{background-color:#1f2937f2!important;border:2px solid var(--gray-400)!important;border-radius:6px}[data-theme=dark] .control-section{background-color:#1f2937e6!important;border-color:var(--gray-400)!important;border-width:2px}[data-theme=dark] .control-group input,[data-theme=dark] .control-group select,[data-theme=dark] .control-group textarea{background-color:#0f172acc!important;border:2px solid var(--gray-500)!important;color:var(--text-primary)}[data-theme=dark] .control-group label{display:block;color:var(--gray-900);font-size:1rem;margin-bottom:.5rem;font-weight:600;line-height:1.5;letter-spacing:.3px}@media (max-width: 1023px){.rig-container{grid-template-columns:1fr}}@media (max-width: 640px){.responsive-image-generator{padding:1rem}.responsive-image-generator h1{font-size:1.75rem}.form-row{grid-template-columns:1fr}.breakpoint-item{flex-wrap:wrap}.bp-width{width:70px!important}.format-buttons{flex-direction:column}.format-btn{width:100%;text-align:center}}