:root{--bg-primary: #242424;--bg-secondary: #2f2f2f;--bg-control: #333;--text-primary: rgba(255, 255, 255, .87);--text-secondary: rgba(255, 255, 255, .6);--border-color: #555;--button-bg: #1a1a1a;--button-hover-border: #646cff;--tooltip-bg: rgba(20, 20, 20, .95);--tooltip-border: rgba(255, 255, 255, .18);--tooltip-text: rgba(255, 255, 255, .95);--error-color: #ff6b6b;--qr-bg: #fff;--qr-module-white: #fff;--qr-module-black: #000;--qr-total-modules: 1;font-family:Inter,system-ui,Avenir,Helvetica,Arial,sans-serif;line-height:1.5;font-weight:400;color-scheme:light dark;font-synthesis:none;text-rendering:optimizeLegibility;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale}.light-theme{--bg-primary: #f5f5f5;--bg-secondary: #e0e0e0;--bg-control: #f1f1f1;--text-primary: #213547;--text-secondary: #4a5568;--border-color: #cbd5e0;--button-bg: #f9f9f9;--button-hover-border: #646cff;--tooltip-bg: rgba(30, 30, 30, .95);--tooltip-border: rgba(0, 0, 0, .2);--tooltip-text: #fff;--error-color: #e53e3e;--qr-bg: #fff;--qr-module-white: #fff;--qr-module-black: #000}body{margin:0;display:flex;justify-content:center;min-width:320px;min-height:100vh;background-color:var(--bg-primary);color:var(--text-primary)}#app{max-width:1280px;margin:0 auto;padding:2rem;text-align:center}.header{display:flex;justify-content:space-between;align-items:center;margin-bottom:2rem}.controls-right{display:flex;gap:.5rem;align-items:center}.language-switcher .lang-button{background-color:var(--button-bg);color:var(--text-primary);border:1px solid var(--border-color);padding:.5em 1em;cursor:pointer;border-radius:4px;margin-left:.5rem}.language-switcher .lang-button.active{background-color:#646cff;border-color:#646cff}.theme-button{background-color:var(--button-bg);border:1px solid var(--border-color);border-radius:4px;padding:.5em 1em;cursor:pointer;font-size:1.2em;line-height:1;color:var(--text-primary)}.theme-button:hover{border-color:var(--button-hover-border)}.container{display:grid;grid-template-columns:350px 1fr;gap:2rem;align-items:flex-start}.controls{display:flex;flex-direction:column;gap:1rem;padding:1.5rem;border-radius:8px;background-color:var(--bg-secondary);text-align:left}.control-group{display:flex;flex-direction:column;position:relative}.control-group label{margin-bottom:.5rem;font-weight:700;display:flex;align-items:center;gap:.5rem;color:var(--text-primary)}textarea,select,input{width:100%;padding:.5rem;border-radius:4px;border:1px solid var(--border-color);background-color:var(--bg-control);color:var(--text-primary);box-sizing:border-box;transition:border-color .2s,box-shadow .2s}textarea:focus,select:focus,input:focus{outline:none;border-color:var(--button-hover-border);box-shadow:0 0 0 2px #646cff33}textarea{min-height:100px;resize:vertical}button{border-radius:8px;border:1px solid transparent;padding:.6em 1.2em;font-size:1em;font-weight:500;font-family:inherit;background-color:var(--button-bg);cursor:pointer;transition:border-color .25s;color:var(--text-primary)}button:hover{border-color:var(--button-hover-border)}button:focus,button:focus-visible{outline:4px auto -webkit-focus-ring-color}.result-area{display:flex;flex-direction:column;align-items:center;justify-content:center;min-height:300px}#qr-code-container{width:300px;height:300px;background-color:var(--qr-bg);border-radius:8px;display:flex;align-items:center;justify-content:center;padding:1rem;box-sizing:border-box}#qr-code-container svg,#qr-code-container canvas{max-width:100%;max-height:100%;object-fit:contain}#qr-code-container .qrcode{display:grid;grid-template-columns:repeat(var(--qr-total-modules),1fr);grid-template-rows:repeat(var(--qr-total-modules),1fr);width:100%;height:100%;aspect-ratio:1 / 1;background-color:var(--qr-bg);box-sizing:border-box;padding:0}#qr-code-container .qr-module{background-color:var(--qr-module-white)}#qr-code-container .qr-module.black{background-color:var(--qr-module-black)}.tooltip-trigger{cursor:pointer;font-size:.75em;background-color:#80808033;color:var(--text-primary);border:1px solid var(--border-color);border-radius:50%;width:1.25em;height:1.25em;display:inline-flex;align-items:center;justify-content:center;font-weight:700;position:relative;-webkit-user-select:none;user-select:none;margin-left:.35rem;line-height:1;padding:0}.tooltip-content{visibility:hidden;opacity:0;background-color:var(--tooltip-bg);color:var(--tooltip-text);text-align:left;border:1px solid var(--tooltip-border);border-radius:8px;padding:8px 10px;position:absolute;z-index:1000;bottom:125%;left:50%;transform:translate(-50%);white-space:normal;width:230px;box-shadow:0 10px 25px #00000059;-webkit-backdrop-filter:blur(6px);backdrop-filter:blur(6px);transition:opacity .3s,visibility .3s;font-size:.9em}.tooltip-content.active{visibility:visible;opacity:1}.tooltip-content:after{content:"";position:absolute;top:100%;left:50%;margin-left:-5px;border-width:5px;border-style:solid;border-color:var(--tooltip-bg) transparent transparent transparent}#error-container{margin-top:1rem;color:var(--error-color);font-weight:700;min-height:24px}#download-btn{margin-top:1rem}.hidden{display:none}@media (max-width: 768px){#app{padding:1rem;max-width:100%}.header{flex-direction:column;gap:1rem;margin-bottom:1.5rem}.container{grid-template-columns:1fr;gap:1.5rem}.controls{padding:1rem}#qr-code-container{width:min(80vw,300px);height:min(80vw,300px);padding:.5rem}.tooltip-content{width:200px;bottom:auto;top:125%;left:0;transform:translate(0)}.tooltip-content:after{top:-5px;left:15px;margin-left:0;border-color:transparent transparent var(--tooltip-bg) transparent}}@media (max-width: 480px){h1{font-size:1.8em}.language-switcher .lang-button,.theme-button{padding:.4em .8em;font-size:.9em}}