.tool-container{max-width:1200px;margin:0 auto;padding:var(--spacing-loose)}.tool-title{font-size:24px;font-weight:600;color:var(--text-primary);margin-bottom:var(--spacing-loose);line-height:1.3}.tool-layout{display:grid;grid-template-columns:1fr 1fr;gap:var(--spacing-loose);align-items:start}.settings-panel,.preview-panel{background:var(--bg-primary);border-radius:12px;box-shadow:0 2px 8px #00000014;padding:var(--spacing-loose);transition:box-shadow .2s ease-in-out}.settings-panel:hover,.preview-panel:hover{box-shadow:0 4px 16px #0000001f}.input-section{margin-bottom:var(--spacing-loose)}.input-label{display:block;font-size:14px;font-weight:500;color:var(--text-primary);margin-bottom:var(--spacing-tight);line-height:1.6}.input-textarea{width:100%;min-height:80px;max-height:300px;padding:12px 16px;border:1px solid var(--border-primary);border-radius:8px;font-family:inherit;font-size:14px;line-height:1.6;color:var(--text-primary);background:var(--bg-primary);resize:vertical;outline:none;transition:all .2s ease-in-out}.input-textarea:focus{border-color:var(--primary);box-shadow:0 0 0 3px #3b82f633}.input-textarea.error{border-color:var(--error);box-shadow:0 0 0 3px #ef444433}.input-textarea::placeholder{color:var(--text-tertiary)}.error-message{display:none;color:var(--error);font-size:12px;margin-top:var(--spacing-tight);line-height:1.5;animation:slideIn .3s ease-out}.error-message.show{display:block}@keyframes slideIn{0%{opacity:0;transform:translateY(-8px)}to{opacity:1;transform:translateY(0)}}.settings-section{margin-bottom:var(--spacing-loose)}.settings-title{font-size:16px;font-weight:600;color:var(--text-primary);margin-bottom:var(--spacing-standard);line-height:1.5}.setting-item{margin-bottom:var(--spacing-standard)}.setting-item:last-child{margin-bottom:0}.setting-label{display:block;font-size:14px;font-weight:500;color:var(--text-secondary);margin-bottom:var(--spacing-tight);line-height:1.6}.size-control{display:flex;align-items:center;gap:var(--spacing-standard)}.size-slider{flex:1;height:6px;border-radius:3px;background:var(--bg-tertiary);outline:none;cursor:pointer;-webkit-appearance:none;appearance:none}.size-slider::-webkit-slider-thumb{-webkit-appearance:none;appearance:none;width:18px;height:18px;border-radius:50%;background:var(--primary);cursor:pointer;transition:all .2s ease-in-out}.size-slider::-webkit-slider-thumb:hover{transform:scale(1.1);box-shadow:0 2px 8px #3b82f666}.size-slider::-moz-range-thumb{width:18px;height:18px;border-radius:50%;background:var(--primary);cursor:pointer;border:none;transition:all .2s ease-in-out}.size-slider::-moz-range-thumb:hover{transform:scale(1.1);box-shadow:0 2px 8px #3b82f666}.size-value{min-width:60px;padding:6px 12px;background:var(--bg-secondary);border-radius:6px;font-size:14px;font-weight:500;color:var(--text-primary);text-align:center}.print-size-reference{display:flex;align-items:center;gap:6px;margin-top:8px;padding-left:0;font-size:12px;color:var(--text-tertiary);line-height:1.5}.print-size-reference svg{flex-shrink:0;opacity:.7}.print-size-reference span{color:var(--text-tertiary)}.setting-row{display:grid;grid-template-columns:1fr 1fr;gap:var(--spacing-standard);margin-bottom:var(--spacing-standard)}.color-picker-wrapper{display:flex;align-items:center;gap:var(--spacing-tight)}.color-picker{width:40px;height:40px;border:2px solid var(--border-primary);border-radius:8px;cursor:pointer;padding:2px;transition:all .2s ease-in-out}.color-picker:hover{border-color:var(--primary)}.color-picker::-webkit-color-swatch-wrapper{padding:0}.color-picker::-webkit-color-swatch{border:none;border-radius:4px}.color-value{font-size:13px;font-family:Consolas,Monaco,Courier New,monospace;color:var(--text-secondary)}.select-input{width:100%;padding:10px 12px;border:1px solid var(--border-primary);border-radius:8px;font-family:inherit;font-size:14px;color:var(--text-primary);background:var(--bg-primary);cursor:pointer;outline:none;transition:all .2s ease-in-out}.select-input:focus{border-color:var(--primary);box-shadow:0 0 0 3px #3b82f61a}.logo-upload{display:flex;align-items:center;gap:var(--spacing-tight)}.logo-input{display:none}.logo-label{display:inline-flex;align-items:center;gap:var(--spacing-tight);padding:8px 16px;background:var(--bg-secondary);border:1px solid var(--border-primary);border-radius:8px;font-size:14px;font-weight:500;color:var(--text-secondary);cursor:pointer;transition:all .2s ease-in-out}.logo-label:hover{background:var(--bg-tertiary);border-color:var(--primary);color:var(--primary)}.logo-filename{flex:1;font-size:13px;color:var(--text-tertiary);overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.btn-clear-logo{padding:6px 12px;background:transparent;border:1px solid var(--border-primary);border-radius:6px;font-size:13px;color:var(--text-tertiary);cursor:pointer;transition:all .2s ease-in-out}.btn-clear-logo:hover{border-color:var(--error);color:var(--error)}.button-section{display:flex;gap:var(--spacing-tight)}.btn-primary{flex:1;background:var(--primary);color:#fff;border-radius:8px;padding:10px 24px;font-size:14px;font-weight:500;cursor:pointer;transition:all .2s ease-in-out;border:none;outline:none}.btn-primary:hover{background:var(--primary-hover);transform:translateY(-2px)}.btn-primary:active{background:var(--primary-active);transform:translateY(1px)}.btn-secondary{background:var(--text-tertiary);color:#fff;border-radius:8px;padding:10px 24px;font-size:14px;font-weight:500;cursor:pointer;transition:all .2s ease-in-out;border:none;outline:none}.btn-secondary:hover{background:#7b8a9a;transform:translateY(-2px)}.btn-secondary:active{background:#6b7a8a;transform:translateY(1px)}.preview-header{margin-bottom:var(--spacing-standard)}.preview-title{font-size:16px;font-weight:600;color:var(--text-primary);line-height:1.5}.preview-area{background:var(--bg-secondary);border-radius:8px;padding:var(--spacing-loose);min-height:300px;display:flex;align-items:center;justify-content:center;margin-bottom:var(--spacing-standard)}.preview-placeholder{display:flex;flex-direction:column;align-items:center;gap:var(--spacing-standard)}.placeholder-text{font-size:14px;color:var(--text-tertiary)}.qrcode-wrapper{display:flex;flex-direction:column;align-items:center;gap:var(--spacing-tight);max-width:100%}#qrcodeCanvas{display:block;max-width:100%;width:auto!important;height:auto!important;border-radius:4px}.scale-indicator{display:none;font-size:12px;color:var(--text-tertiary);background:var(--bg-tertiary);padding:4px 12px;border-radius:4px;margin-bottom:var(--spacing-tight)}.download-section{display:flex;gap:var(--spacing-tight);flex-wrap:wrap}.btn-download{flex:1;min-width:120px;display:inline-flex;align-items:center;justify-content:center;gap:var(--spacing-tight);padding:10px 16px;background:#22c55e;color:#fff;border-radius:8px;font-size:14px;font-weight:500;cursor:pointer;transition:all .2s ease-in-out;border:none;outline:none}.btn-download:hover{background:#16a34a;transform:translateY(-2px)}.btn-download:active{background:#15803d;transform:translateY(1px)}.btn-download-svg{background:var(--secondary)}.btn-download-svg:hover{background:#7c3aed}.btn-download-svg:active{background:#6d28d9}.btn-copy-qr{display:inline-flex;align-items:center;justify-content:center;gap:var(--spacing-tight);padding:10px 16px;background:transparent;color:var(--text-secondary);border:1px solid var(--border-primary);border-radius:8px;font-size:14px;font-weight:500;cursor:pointer;transition:all .2s ease-in-out}.btn-copy-qr:hover{color:var(--primary);border-color:var(--primary)}.btn-copy-qr.copied{color:var(--success);border-color:var(--success)}.navbar{background:var(--bg-primary);box-shadow:0 2px 8px #00000014;position:sticky;top:0;z-index:100}.navbar-container{display:flex;align-items:center;justify-content:space-between;padding:var(--spacing-standard) 0}.logo{display:flex;align-items:center;gap:var(--spacing-standard);cursor:pointer;transition:all .2s ease-in-out}.logo:hover{transform:translateY(-2px)}.logo span{font-size:20px;font-weight:600;color:var(--text-primary)}.nav-links{display:flex;gap:var(--spacing-loose)}.nav-links a{color:var(--text-secondary);font-weight:500}.main-content{min-height:calc(100vh - 300px);padding:var(--spacing-extra) 0}.footer{background:var(--bg-tertiary);padding:var(--spacing-extra) 0;margin-top:var(--spacing-extra)}.footer-container{display:grid;grid-template-columns:repeat(4,1fr);gap:var(--spacing-loose)}.footer-column h3{font-size:16px;font-weight:600;color:var(--text-primary);margin-bottom:var(--spacing-standard)}.footer-column p{color:var(--text-secondary);font-size:14px;line-height:1.6;margin-bottom:var(--spacing-tight)}.footer-column ul{list-style:none}.footer-column ul li{margin-bottom:var(--spacing-tight)}.footer-column ul li a{color:var(--text-secondary);font-size:14px}.footer-column ul li a:hover{color:var(--primary)}.copyright{margin-top:var(--spacing-standard);font-size:12px;color:var(--text-tertiary)}@media(max-width:1023px){.tool-layout{grid-template-columns:1fr}}@media(max-width:767px){.tool-container,.settings-panel,.preview-panel{padding:var(--spacing-standard)}.tool-title{font-size:20px}.setting-row{grid-template-columns:1fr}.button-section{flex-direction:column}.btn-primary,.btn-secondary{width:100%}.download-section{flex-direction:column}.btn-download,.btn-copy-qr{width:100%}.navbar-container{flex-wrap:wrap}.logo{width:100%;justify-content:center;margin-bottom:var(--spacing-standard)}.nav-links{width:100%;justify-content:center}.footer-container{grid-template-columns:1fr}.logo-upload{flex-wrap:wrap}.logo-label{width:100%;justify-content:center}.logo-filename{width:100%;text-align:center}}