.signin-page {
  min-height: 100%;
  height: auto;
  display: grid;
  place-items: center;
  padding: 28px 16px;
}

.signin-card {
  width: min(100%, 420px);
  padding: 32px;
  border: 1px solid var(--line);
  border-radius: 16px;
  background: var(--white);
  box-shadow: var(--shadow);
}

.signin-card header { text-align: center; }
.signin-mark { display: block; margin: 0 auto 10px; }
.signin-brand { margin: 0; color: var(--moss); font-size: 1.4rem; font-weight: 700; }
.signin-card h1 { margin: 12px 0 8px; font-size: 1.7rem; }
.signin-card header p:last-child { color: var(--muted); margin: 0 0 20px; }
.signin-card fieldset { display: grid; gap: 10px; border: 0; padding: 0; margin: 0; min-width: 0; }
.signin-card label { font-weight: 600; }
.signin-card input:not([type="checkbox"]) {
  width: 100%;
  min-width: 0;
  min-height: 44px;
  padding: 10px 12px;
  color: var(--ink);
  background: var(--field);
  border: 1px solid var(--line);
  border-radius: 6px;
  margin-bottom: 6px;
}
.signin-card .signin-remember { display: flex; align-items: center; gap: 10px; min-height: 44px; font-weight: 400; }
.signin-remember input { width: 18px; height: 18px; accent-color: var(--moss); }
.signin-card button { min-height: 44px; padding: 10px 16px; }
.signin-card .signin-secondary { color: var(--ink); background: var(--paper-deep); }
.signin-card :focus-visible { outline: 3px solid var(--moss); outline-offset: 3px; }
.signin-help, .signin-version { color: var(--muted); font-size: 0.9rem; line-height: 1.5; }
.signin-error { color: var(--danger); overflow-wrap: anywhere; }
.signin-status { color: var(--moss); }
.signin-error:empty, .signin-status:empty { display: none; }
.signin-version { text-align: center; border-top: 1px solid var(--line); padding-top: 18px; margin-top: 24px; }
.signin-sr-only { position: absolute; width: 1px; height: 1px; overflow: hidden; clip-path: inset(50%); white-space: nowrap; }
.signin-card [hidden] { display: none; }

@media (max-width: 440px) {
  .signin-card { padding: 24px 20px; }
}