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h4{color:#333;margin-bottom:15px;font-size:1.1rem;background:linear-gradient(45deg,#ff6b35,#f7931e);-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text}.qr-preview-container{display:flex;justify-content:center;align-items:center;padding:10px;background:#fff7e6;border-radius:10px;box-shadow:0 2px 8px #ff6b3514;border:2px solid #ffd23f;min-height:0}.qr-preview-section{margin:0 auto 24px;padding:16px 0 0;text-align:center}.qr-preview-section h4{color:#ff6b35;font-size:1.1rem;margin-bottom:10px;font-weight:700}.qr-preview-container{display:inline-block;padding:10px;background:#fff7e6;border-radius:10px;box-shadow:0 2px 8px #ff6b3514;border:2px solid #ffd23f}#qr-preview-canvas{max-width:120px;height:auto;border-radius:8px;background:#fff}.color-selector{display:flex;align-items:center;gap:10px;padding:8px;border:2px solid #dee2e6;border-radius:8px;background:#fff;transition:border-color .3s ease}.color-selector:hover{border-color:#ff6b35}.color-selector 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300px;max-width:100%;box-sizing:border-box}@media (max-width: 900px){.customization-flex{flex-direction:column;gap:18px;padding:18px 10px 10px;flex-wrap:wrap}.image-panel{max-width:100%}}@media (max-width: 480px){.form-group{min-width:100%}.button{width:100%;margin-top:10px}.url-input-container{gap:15px}.size-buttons{justify-content:center}.size-btn{min-width:70px;padding:10px 12px;font-size:12px}.color-selector{flex-direction:column;align-items:flex-start;gap:8px;padding:12px}.customization-row{flex-direction:column;align-items:stretch;gap:15px}}.clear-color-btn{background:#ffd23f;border:none;color:#ff6b35;font-size:18px;border-radius:50%;width:32px;height:32px;margin-left:6px;cursor:pointer;transition:background .2s,color .2s;display:flex;align-items:center;justify-content:center;box-shadow:0 2px 6px #ff6b3514}.clear-color-btn:hover{background:#ff6b35;color:#fff}body.dark-mode h1{color:#e0e0e0}body.dark-mode .input-section,body.dark-mode .customization-panel,body.dark-mode 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