:root{--bg:#f4f6f9;--card:#fff;--ink:#1c2533;--muted:#6b7686;--line:#e3e8ef;--accent:#1f6feb;--bad:#c0392b;--good:#0a7d33}
@media (prefers-color-scheme:dark){:root{--bg:#0f141b;--card:#19212c;--ink:#e7edf5;--muted:#92a0b3;--line:#28323f;--accent:#4b8bff}}
*{box-sizing:border-box}body{margin:0;background:var(--bg);color:var(--ink);font:15px/1.45 "Segoe UI",system-ui,Roboto,Arial,sans-serif}
.wrap{max-width:760px;margin:0 auto;padding:24px 16px 48px}
.brand{display:flex;gap:12px;align-items:center;margin-bottom:16px}.brand h1{font-size:20px;margin:0}.brand p{margin:2px 0 0}
.logo{width:42px;height:42px;border-radius:12px;background:var(--accent);color:#fff;display:grid;place-items:center;font-weight:800;font-size:20px}
.card{background:var(--card);border:1px solid var(--line);border-radius:14px;padding:20px;margin-bottom:14px}
h2{font-size:18px;margin:0 0 10px}h3{font-size:15px;margin:20px 0 8px}
label{display:block;margin:0 0 12px;font-size:13px;color:var(--muted)}
input{display:block;width:100%;margin-top:5px;min-height:44px;padding:0 12px;border:1px solid var(--line);border-radius:10px;background:var(--card);color:var(--ink);font-size:16px}
input.code{font-size:24px;letter-spacing:.3em;text-align:center;max-width:220px}
.btn{min-height:42px;padding:0 16px;border:1px solid var(--line);border-radius:10px;background:var(--card);color:var(--ink);font-weight:600;font-size:15px;cursor:pointer}
.btn.primary{background:var(--accent);border-color:transparent;color:#fff}.btn:disabled{opacity:.6;cursor:wait}
.muted{color:var(--muted)}.small{font-size:13px}
.key{font:600 20px/1.4 Consolas,"Cascadia Mono",monospace;letter-spacing:.08em;background:var(--bg);border:1px dashed var(--line);border-radius:10px;padding:12px;text-align:center;word-break:break-all;margin:6px 0 10px}
.steps{padding-left:20px;margin:0 0 8px}.steps li{margin-bottom:6px}
.row{display:flex;justify-content:space-between;align-items:center;gap:10px}
.row-gap{display:flex;gap:8px;flex-wrap:wrap}
.kv{display:flex;flex-direction:column;gap:3px;padding:10px 12px;background:var(--bg);border-radius:10px;margin:8px 0}.kv span{font-size:12px;color:var(--muted)}.kv b{word-break:break-all}
.tbl{width:100%;border-collapse:collapse;font-size:14px}.tbl th,.tbl td{text-align:left;padding:8px 6px;border-bottom:1px solid var(--line)}
.tbl th{font-size:12px;color:var(--muted);font-weight:600}
.inline{display:flex;flex-wrap:wrap;gap:8px;margin-top:12px}.inline input{flex:1 1 160px;margin:0}
.linkbtn{background:none;border:none;color:var(--accent);cursor:pointer;font-size:13px;padding:0}
.msg{position:fixed;left:50%;bottom:20px;transform:translateX(-50%);max-width:92%;padding:10px 16px;border-radius:12px;background:#111b2b;color:#fff;box-shadow:0 6px 24px rgba(0,0,0,.3)}
.msg.bad{background:var(--bad)}
.captcha{margin:4px 0 12px}
@media (max-width:560px){.tbl{font-size:13px}.tbl th:nth-child(3),.tbl td:nth-child(3){display:none}}