.container{min-height:100vh}.main-content{width:100%;margin:0 auto;padding:40px 20px;display:grid;grid-template-columns:350px 1fr;grid-gap:30px;gap:30px}@media (max-width:768px){.main-content{grid-template-columns:1fr;gap:30px}}.controls-panel{background-color:#16181d;border-radius:8px;height:-moz-fit-content;height:fit-content}.custom-card-header{background:#2f313c;padding:20px;border-bottom:1px solid rgba(255,255,255,.1);border-top-left-radius:6px;border-top-right-radius:6px}.panel-title{font-size:1.4rem;color:#f5f5f5;font-weight:500}.control-group{padding:25px}.control-label{display:flex;justify-content:space-between;align-items:center;margin-bottom:8px;font-weight:500}.control-value{background-color:#333;color:#f5f5f5;padding:2px 8px;border-radius:4px;font-size:14px;min-width:30px;text-align:center}.slider{width:100%;height:6px;border-radius:3px;background:#555;outline:none;-webkit-appearance:none}.slider::-webkit-slider-thumb{-webkit-appearance:none;appearance:none;width:18px;height:18px;border-radius:50%;background:#805AF5;cursor:pointer}.slider::-moz-range-thumb{width:18px;height:18px;border-radius:50%;background:#805AF5;cursor:pointer;border:none}.color-input-group{display:flex;gap:10px;align-items:center}.color-picker{width:40px;height:40px;border:none;border-radius:4px;cursor:pointer}.color-text{flex:1 1;padding:8px 12px;border:1px solid #ddd;border-radius:4px;font-family:monospace}.checkbox-label{display:flex;align-items:center;gap:8px;cursor:pointer}.checkbox{width:18px;height:18px;cursor:pointer;background:#2f313c;border:1px solid #666}.action-buttons{display:flex;gap:10px;padding:25px}.copy-button,.reset-button{flex:1 1;padding:10px 20px;border:none;border-radius:4px;cursor:pointer;font-weight:500;transition:all .2s}.reset-button{background-color:#333;color:#ccc}.reset-button:hover{background-color:#444}.copy-button{background-color:#4285f4;color:white}.copy-button:hover{background-color:#3367d6}.preview-panel{display:flex;flex-direction:column;gap:30px}.preview-container{background-color:#16181d;padding:60px;border-radius:8px;display:flex;justify-content:center;align-items:center;min-height:400px}.preview-box{width:200px;height:200px;background-color:#16181d;border-radius:12px;transition:box-shadow .2s ease}.css-output{background-color:#16181d;border-radius:8px}.css-output h3{margin-bottom:15px;color:#333;font-size:1.2rem}.css-code{background-color:#2f313c;padding:15px;border-radius:4px}.css-code code{font-family:Monaco,Menlo,Ubuntu Mono,monospace;font-size:14px;color:#f5f5f5;word-break:break-all}@media (max-width:768px){.main-title{padding:30px 20px}.main-title h1{font-size:2rem}.nav-tabs{padding:15px}.tab-button{font-size:12px;padding:6px 12px}.controls-panel{padding:20px}.preview-container{padding:40px 20px;min-height:300px}.preview-box{width:150px;height:150px}.action-buttons{flex-direction:column}}@media (max-width:480px){.nav-tabs{gap:5px}.tab-button{font-size:11px;padding:5px 8px}.main-title h1{font-size:1.8rem}.preview-box{width:120px;height:120px}}