:root{
  --blue:#0B5CFF;
  --blue-hover:#0A4FD6;
  --ink:#0e0e0e;
  --ink-2:#2f2f2f;
  --ink-3:#6e6e73;
  --line:#d9dde3;
  --line-2:#e8ebef;
  --surface:#ffffff;
  --danger:#c0392b;
  --btn-disabled:#e5e7eb;
  --btn-disabled-text:#8a8f98;
}

*{box-sizing:border-box}

html,body{
  margin:0;padding:0;min-height:100%;
  background:#fff;color:var(--ink);
  font-family:-apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,Helvetica,Arial,sans-serif;
  -webkit-font-smoothing:antialiased;
}

.topbar{background:#fff;border-bottom:1px solid var(--line-2)}
.topbar-inner{max-width:1320px;margin:0 auto;padding:18px 32px;display:flex;align-items:center;justify-content:space-between}
.topbar-actions{display:flex;align-items:center;gap:12px}
.btn-outline{display:inline-block;padding:8px 18px;border-radius:999px;border:1.5px solid var(--blue);color:var(--blue);font-weight:600;font-size:14.5px;text-decoration:none;background:#fff;transition:background .12s}
.btn-outline:hover{background:#f0f5ff}
.btn-solid{display:inline-block;padding:9px 20px;border-radius:999px;background:var(--blue);color:#fff;font-weight:600;font-size:14.5px;text-decoration:none;border:1.5px solid var(--blue);transition:background .12s}
.btn-solid:hover{background:var(--blue-hover);border-color:var(--blue-hover)}

.page{
  min-height:calc(100vh - 88px - 62px);
  position:relative;
  padding:64px 24px 60px;
  display:flex;
  align-items:flex-start;
  justify-content:center;
}

.stage-join, .stage-connecting, .stage-verify {
  display:none;
  width:100%;
  max-width:520px;
  animation:fadeIn .32s ease;
}
.stage-join.active { display:block; text-align:center; }
.stage-connecting.active,
.stage-verify.active { display:flex; justify-content:center; }

@keyframes fadeIn{
  from{opacity:0; transform:translateY(6px)}
  to{opacity:1; transform:translateY(0)}
}

.join-title{font-size:28px;font-weight:700;color:var(--ink);margin:8px 0 44px;letter-spacing:-.01em}
.join-form{text-align:left}
.field-label{display:block;font-size:14.5px;font-weight:600;color:var(--ink-2);margin-bottom:10px}
.field-input{
  display:block;width:100%;padding:12px 16px;font-size:15px;font-family:inherit;
  color:var(--ink);background:#fff;border:1.5px solid var(--line);border-radius:10px;outline:none;
  transition:border-color .12s ease, box-shadow .12s ease;
}
.field-input::placeholder{color:#9aa2ac}
.field-input:focus{border-color:var(--blue);box-shadow:0 0 0 3px rgba(11,92,255,.12)}
.consent{font-size:13.5px;color:var(--ink-3);line-height:1.55;margin:18px 0 22px}
.consent a{color:var(--blue);text-decoration:none}
.consent a:hover{text-decoration:underline}
.join-btn{
  display:block;width:100%;padding:13px 18px;
  font-size:15.5px;font-weight:600;font-family:inherit;
  color:#fff;background:var(--blue);border:0;border-radius:10px;
  cursor:pointer;transition:background .12s, color .12s;
}
.join-btn:hover:not(:disabled){background:var(--blue-hover)}
.join-btn:disabled{background:var(--btn-disabled);color:var(--btn-disabled-text);cursor:default}
.alt-link{margin-top:56px;font-size:14.5px;text-align:center}
.alt-link a{color:var(--blue);text-decoration:none}
.alt-link a:hover{text-decoration:underline}

.card{
  width:100%;max-width:520px;background:var(--surface);border-radius:16px;
  box-shadow:0 1px 2px rgba(13,27,42,.04), 0 8px 32px rgba(13,27,42,.10), 0 24px 80px rgba(13,27,42,.06);
  border:1px solid rgba(13,27,42,.05);padding:36px 40px 40px;
}

.stage-connecting .card{text-align:center;padding:44px 40px 44px}
.spinner{
  width:44px;height:44px;margin:14px auto 22px;border-radius:50%;
  border:3px solid #e3ecff;border-top-color:var(--blue);
  animation:spin .85s linear infinite;
}
@keyframes spin{to{transform:rotate(360deg)}}
.connecting-title{font-size:22px;font-weight:600;color:var(--ink);margin:0 0 8px;letter-spacing:-.01em}
.connecting-sub{font-size:14.5px;color:var(--ink-2);margin:0}

.verify h1.err, .err{font-size:22px;font-weight:600;letter-spacing:-.01em;margin:0 0 8px;color:var(--danger);line-height:1.3}
.sub{font-size:14.5px;line-height:1.55;color:var(--ink-2);margin:0 0 24px}
.steps{display:flex;flex-direction:column;gap:16px;margin:6px 0 22px}
.step{display:flex;gap:12px;align-items:flex-start}
.step-num{flex:0 0 auto;width:24px;height:24px;border-radius:50%;background:var(--blue);color:#fff;font-size:12.5px;font-weight:600;display:flex;align-items:center;justify-content:center;margin-top:1px}
.step-body{flex:1;min-width:0}
.step-title{font-size:14px;font-weight:600;color:var(--ink);margin-bottom:8px}
.step-hint{font-size:13.5px;color:var(--ink-2);line-height:1.5}
kbd{
  display:inline-block;padding:1px 6px;border-radius:5px;
  border:1px solid var(--line);background:#f4f5f7;
  font-family:inherit;font-size:12.5px;font-weight:600;
  color:var(--ink);box-shadow:0 1px 0 rgba(13,27,42,.06);margin:0 1px;
}
.code-row{display:flex;align-items:stretch;background:#0d1b2a;border-radius:10px;overflow:hidden;margin-bottom:22px}
.code-row code{flex:1;min-width:0;display:block;padding:12px 14px;color:#d7e2f5;font-family:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;font-size:12px;line-height:1.5;white-space:nowrap;overflow-x:auto}
.copy-btn{flex:0 0 auto;border:0;background:var(--blue);color:#fff;font-size:12.5px;font-weight:600;padding:0 16px;cursor:pointer;transition:background .12s}
.copy-btn:hover{background:var(--blue-hover)}
.copy-btn.copied{background:#2e9e5b}
.waiting-row{display:flex;align-items:center;gap:10px;padding-top:20px;border-top:1px solid var(--line-2);color:var(--ink-3);font-size:13px}
.pulse{width:8px;height:8px;border-radius:50%;background:var(--blue);animation:pulse 1.6s ease-in-out infinite;flex:0 0 auto}
@keyframes pulse{0%,100%{opacity:.35;transform:scale(.9)}50%{opacity:1;transform:scale(1)}}

.brand{display:flex;align-items:center;gap:9px;color:var(--blue);margin-bottom:22px}
.brand-mark{display:inline-flex}
.brand-text{font-size:13.5px;font-weight:600;color:var(--ink);opacity:.85;letter-spacing:.02em}

.sitefoot{background:#fff;border-top:1px solid var(--line-2);padding:20px 0}
.sitefoot-inner{max-width:1320px;margin:0 auto;padding:0 32px;display:flex;align-items:center;justify-content:space-between;font-size:13.5px;color:var(--ink-3)}
.sitefoot-inner a{color:var(--ink-2);text-decoration:none;margin-left:6px}
.sitefoot-inner a:hover{text-decoration:underline}

@media (max-width:600px){
  .topbar-inner{padding:14px 18px}
  .btn-outline,.btn-solid{padding:7px 14px;font-size:13px}
  .page{padding:32px 18px 24px}
  .join-title{font-size:24px;margin-bottom:32px}
  .card{padding:26px 22px 28px}
  .err{font-size:19px}
  .connecting-title{font-size:19px}
  .sitefoot-inner{flex-direction:column;gap:10px;text-align:center}
}