:root {
  --bg: #0f1116;
  --panel: #181c25;
  --text: #e6e9ef;
  --muted: #8b94a8;
  --accent: #4f8cff;
  --err: #ff6b6b;
  --border: #232838;
}
* { box-sizing: border-box; }
body {
  margin: 0;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
  background: var(--bg);
  color: var(--text);
  min-height: 100vh;
}
.login-wrap {
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: 100vh;
  padding: 24px;
}
.login-card {
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 32px;
  width: 100%;
  max-width: 380px;
  box-shadow: 0 10px 40px rgba(0,0,0,0.4);
}
.login-card h1 {
  margin: 0 0 24px;
  font-size: 22px;
  text-align: center;
  letter-spacing: 0.5px;
}
.login-sub { color: var(--muted); font-size: 13px; margin: 0 0 20px; }
.login-form { display: flex; flex-direction: column; gap: 14px; }
.login-form label {
  display: flex;
  flex-direction: column;
  gap: 6px;
  font-size: 13px;
  color: var(--muted);
}
.hint { color: var(--muted); font-size: 11px; }
.login-form input {
  background: #11141c;
  border: 1px solid var(--border);
  color: var(--text);
  padding: 10px 12px;
  border-radius: 6px;
  font-size: 14px;
  font-family: inherit;
}
.login-form input:focus { outline: none; border-color: var(--accent); }
.login-form button {
  background: var(--accent);
  color: #fff;
  border: none;
  padding: 11px;
  border-radius: 6px;
  font-size: 14px;
  font-weight: 600;
  cursor: pointer;
  margin-top: 8px;
}
.login-form button:hover { filter: brightness(1.1); }
.login-err {
  margin-top: 16px;
  padding: 10px 12px;
  background: rgba(255, 107, 107, 0.1);
  border: 1px solid rgba(255, 107, 107, 0.3);
  border-radius: 6px;
  color: var(--err);
  font-size: 13px;
}
.qr-wrap { display: flex; justify-content: center; margin: 16px 0; }
.qr-wrap img { background: #fff; padding: 8px; border-radius: 6px; }
.secret-text {
  text-align: center;
  font-size: 12px;
  color: var(--muted);
  word-break: break-all;
}
.secret-text code {
  background: #11141c;
  padding: 4px 8px;
  border-radius: 4px;
  font-size: 11px;
}