:root{--bg: #0f1419;--surface: #1a2332;--surface-2: #243044;--border: #2d3f56;--text: #e8eef4;--muted: #8ba3bc;--accent: #3d9cf5;--accent-hover: #5aadff;--danger: #f07178;--otp: #7ee787;--radius: 12px;--font: "Segoe UI", system-ui, -apple-system, sans-serif;--mono: "SF Mono", "Cascadia Code", "Consolas", monospace}*,*:before,*:after{box-sizing:border-box}html,body{margin:0;min-height:100%;font-family:var(--font);background:var(--bg);color:var(--text)}.layout{min-height:100vh;display:flex;flex-direction:column}#app{flex:1;display:flex;justify-content:center;padding:1.5rem 1.5rem .5rem}.site-footer{flex-shrink:0;padding:1rem 1.5rem 1.25rem;text-align:center;border-top:1px solid var(--border)}.site-footer a{display:inline-flex;align-items:center;gap:.5rem;color:var(--muted);text-decoration:none;font-size:.875rem;transition:color .15s}.site-footer a:hover{color:var(--text)}.github-icon{flex-shrink:0}.panel{width:100%;max-width:420px;margin:auto}.header{text-align:center;margin-bottom:2rem}.header h1{margin:0 0 .5rem;font-size:1.75rem;font-weight:600}.subtitle{margin:0;color:var(--muted);font-size:.95rem;line-height:1.5}.form{display:flex;flex-direction:column;gap:1rem}label{display:flex;flex-direction:column;gap:.35rem;font-size:.875rem;color:var(--muted)}input,textarea{font:inherit;color:var(--text);background:var(--surface);border:1px solid var(--border);border-radius:8px;padding:.65rem .75rem}input:focus,textarea:focus{outline:2px solid var(--accent);outline-offset:1px}textarea{resize:vertical;font-family:var(--mono);font-size:.8rem}.btn{font:inherit;cursor:pointer;border:none;border-radius:8px;padding:.7rem 1.25rem;font-weight:500;transition:background .15s}.btn-primary{background:var(--accent);color:#fff}.btn-primary:hover{background:var(--accent-hover)}.btn-ghost{background:transparent;color:var(--muted);border:1px solid var(--border)}.btn-ghost:hover{background:var(--surface);color:var(--text)}.btn-danger-text{margin-top:1.5rem;width:100%;color:var(--danger);border-color:transparent}.btn-danger-text:hover{color:var(--danger);background:#f071781a}.error{margin:0;color:var(--danger);font-size:.875rem}.main-view{width:100%;max-width:520px}.toolbar{display:flex;align-items:center;justify-content:space-between;gap:1rem;margin-bottom:1.5rem}.toolbar h1{margin:0;font-size:1.5rem}.toolbar-actions{display:flex;gap:.5rem}.keys-list{display:flex;flex-direction:column;gap:1rem}.empty{text-align:center;color:var(--muted);padding:2rem 1rem}.key-card{background:var(--surface);border:1px solid var(--border);border-radius:var(--radius);padding:1.25rem}.key-card-header{display:flex;align-items:flex-start;justify-content:space-between;gap:.5rem;margin-bottom:.75rem}.key-label{margin:0;font-size:1rem;font-weight:500;line-height:1.3}.btn-icon{flex-shrink:0;width:2rem;height:2rem;border:none;border-radius:6px;background:transparent;color:var(--muted);font-size:1.25rem;line-height:1;cursor:pointer}.btn-icon:hover{background:var(--surface-2);color:var(--danger)}.otp-code{margin:0 0 .75rem;font-family:var(--mono);font-size:2.25rem;font-weight:600;letter-spacing:.15em;color:var(--otp)}.progress-wrap{height:4px;background:var(--surface-2);border-radius:2px;overflow:hidden;margin-bottom:.35rem}.progress-bar{height:100%;background:var(--accent);border-radius:2px;width:0%;transition:width 1s linear}.countdown{font-size:.8rem;color:var(--muted)}.dialog{border:none;border-radius:var(--radius);padding:0;background:var(--surface);color:var(--text);max-width:calc(100vw - 2rem);width:440px;box-shadow:0 16px 48px #00000080}.dialog::backdrop{background:#0009}.dialog-body{padding:1.5rem;display:flex;flex-direction:column;gap:1rem}.dialog-body h2{margin:0;font-size:1.25rem}.tabs{display:flex;gap:.25rem;background:var(--bg);padding:.25rem;border-radius:8px}.tab{flex:1;font:inherit;font-size:.875rem;padding:.5rem;border:none;border-radius:6px;background:transparent;color:var(--muted);cursor:pointer}.tab.active{background:var(--surface-2);color:var(--text)}.tab-panel{display:flex;flex-direction:column;gap:.75rem}.hint{margin:0;font-size:.8rem;color:var(--muted)}.qr-reader{min-height:260px;border-radius:8px;overflow:hidden;background:#000}.dialog-actions{display:flex;justify-content:flex-end;gap:.5rem;margin-top:.5rem}@media(max-width:480px){.toolbar{flex-direction:column;align-items:stretch}.toolbar-actions{justify-content:stretch}.toolbar-actions .btn{flex:1}.otp-code{font-size:1.85rem}}