.signin { max-width: 420px; margin: 10vh auto; padding: 32px 28px; background: var(--surface); border: 1px solid var(--line); border-radius: 12px; text-align: center; }
.signin .mark { width: 64px; height: 64px; border-radius: 14px; margin-bottom: 12px; }
.signin h1 { font-family: var(--mono); font-size: 20px; margin: 0 0 8px; }
.signin .sub { color: var(--muted); font-family: var(--sans); font-size: 14px; line-height: 1.6; margin: 0 0 22px; text-align: left; }
.signin button.primary { width: 100%; padding: 11px; font-size: 15px; }
.signin details { text-align: left; margin-top: 22px; border-top: 1px solid var(--line); padding-top: 12px; }
.signin textarea { min-height: 70px; font-size: 11px; }
.signin .foot { margin-top: 20px; }