:root{--bg: #0e1014;--surface: #141821;--border: rgba(255, 255, 255, .08);--text: rgba(255, 255, 255, .92);--muted: rgba(255, 255, 255, .62);--shadow: 0 14px 30px rgba(0, 0, 0, .35);--r: 20px;--r-sm: 14px}*{box-sizing:border-box}html,body{height:100%}body{margin:0;font-family:ui-sans-serif,system-ui,-apple-system,Segoe UI,Roboto,Helvetica,Arial,sans-serif;background:var(--bg);color:var(--text)}.page{min-height:100svh;display:flex;align-items:center;justify-content:center;padding:44px 24px 96px}.shell{width:min(420px,100%);margin-inline:auto}.card{background:var(--surface);border:1px solid var(--border);border-radius:var(--r);box-shadow:var(--shadow);padding:24px;display:flex;flex-direction:column;gap:20px}.header{text-align:center}.title{margin:0;font-size:24px;letter-spacing:-.02em;font-weight:700}.subtitle{margin:6px 0 0;color:var(--muted);font-size:14px}.inputGroup{display:flex;flex-direction:column;gap:8px}.label{font-weight:600;font-size:13px;color:var(--muted)}.input{width:100%;border-radius:var(--r-sm);border:1px solid var(--border);background:#0003;color:var(--text);padding:12px 14px;outline:none;font-size:14px;font-family:inherit;resize:none;transition:border-color .15s ease,background .15s ease}.input::placeholder{color:var(--muted);opacity:.7}.input:focus{border-color:#fff3;background:#00000047}.preview{border-radius:var(--r-sm);border:1px solid var(--border);background:#00000024;min-height:240px;display:flex;align-items:center;justify-content:center;padding:20px;overflow:hidden}.qrImage{width:100%;max-width:200px;height:auto;border-radius:8px;image-rendering:pixelated}.empty{color:var(--muted);font-weight:500;font-size:14px}.actions{display:flex;gap:10px}.btnPrimary,.btnGhost{flex:1;border-radius:999px;padding:12px 16px;font-weight:600;font-size:14px;cursor:pointer;transition:transform .15s ease,opacity .15s ease;border:none}.btnPrimary{background:#ffffffeb;color:#0a0a0ceb}.btnPrimary:hover:not(:disabled){transform:translateY(-1px)}.btnGhost{background:#ffffff0f;color:var(--text);border:1px solid var(--border)}.btnGhost:hover:not(:disabled){background:#ffffff1a}.btnPrimary:disabled,.btnGhost:disabled{opacity:.5;cursor:not-allowed}.credit{position:fixed;left:50%;bottom:14px;transform:translate(-50%);z-index:999;font-size:12px;color:var(--muted);text-align:center;padding:6px 10px;border-radius:999px;border:1px solid rgba(255,255,255,.1);background:#1418218c;-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px)}.creditLink{color:var(--muted);text-decoration:none}.creditLink:hover{color:#ffffffdb}@media (max-width: 480px){.page{padding:24px 16px 80px}.card{padding:20px}.actions{flex-direction:column}}