:root{--bg:#0e1014;--card:#171a21;--card-2:#1f232c;--border:#2a2f3a;--text:#e8eaed;--muted:#9aa3b2;--accent:#4c8bf5;--accent-2:#3a76db;--ok:#34c759;--err:#ff5c5c;--radius:14px}*{box-sizing:border-box}body,html{padding:0;margin:0}body{background:radial-gradient(1200px 600px at 50% -10%,#1a2030 0,var(--bg) 55%);color:var(--text);font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,Helvetica,Arial,sans-serif;min-height:100vh;-webkit-font-smoothing:antialiased}.wrap{max-width:480px;margin:0 auto;padding:48px 20px 64px}.brand{display:flex;align-items:center;gap:10px;margin-bottom:28px}.brand .dot{width:12px;height:12px;border-radius:50%;background:var(--accent);box-shadow:0 0 16px var(--accent)}.brand b{font-size:18px;letter-spacing:.2px}.card{background:var(--card);border:1px solid var(--border);border-radius:var(--radius);padding:24px;box-shadow:0 12px 40px rgba(0,0,0,.35)}h1{font-size:24px;margin:0 0 8px;line-height:1.25}h2{font-size:16px;margin:22px 0 10px;color:var(--text)}p{line-height:1.55;margin:0 0 16px;font-size:14.5px}.muted,p{color:var(--muted)}.small{font-size:12.5px}label{display:block;font-size:13px;color:var(--muted);margin:14px 0 6px}input{width:100%;background:var(--card-2);border:1px solid var(--border);color:var(--text);border-radius:10px;padding:12px 14px;font-size:15px;outline:none;transition:border-color .15s}input:focus{border-color:var(--accent)}button{width:100%;border:none;border-radius:10px;padding:13px 16px;font-size:15px;font-weight:600;cursor:pointer;margin-top:16px;transition:transform .05s,background .15s,opacity .15s}button:active{transform:translateY(1px)}button:disabled{opacity:.55;cursor:not-allowed}.primary{background:var(--accent);color:white}.primary:hover:not(:disabled){background:var(--accent-2)}.ghost{background:transparent;color:var(--accent);border:1px solid var(--border)}.tg{background:#29a9eb;color:white}.alert{border-radius:10px;padding:11px 14px;font-size:13.5px;margin-top:14px}.alert.err{background:rgba(255,92,92,.12);color:#ffb4b4;border:1px solid rgba(255,92,92,.3)}.alert.ok{background:rgba(52,199,89,.12);color:#9fe9b4;border:1px solid rgba(52,199,89,.3)}.code-pill{font-family:ui-monospace,SFMono-Regular,Menlo,monospace;background:var(--card-2);border:1px dashed var(--border);border-radius:10px;padding:12px;text-align:center;font-size:18px;letter-spacing:1px;margin:6px 0 4px;-webkit-user-select:all;-moz-user-select:all;user-select:all}.list{flex-direction:column;gap:8px;margin-top:8px}.item,.list{display:flex}.item{background:var(--card-2);border:1px solid var(--border);border-radius:10px;padding:11px 13px;justify-content:space-between;align-items:center;gap:10px;font-size:13.5px}.badge{font-size:11px;padding:3px 8px;border-radius:99px;font-weight:600}.badge.pending{background:rgba(255,193,7,.16);color:#ffd66b}.badge.done{background:rgba(52,199,89,.16);color:#9fe9b4}.badge.used{background:rgba(154,163,178,.16);color:var(--muted)}.divider{height:1px;background:var(--border);margin:22px 0;border:0}.foot{text-align:center;margin-top:20px}.spin{display:inline-block;width:15px;height:15px;border:2px solid rgba(255,255,255,.4);border-top-color:#fff;border-radius:50%;animation:spin .7s linear infinite;vertical-align:-2px}@keyframes spin{to{transform:rotate(1turn)}}