.login-body { display: flex; min-height: 100vh; align-items: center;
              justify-content: center; padding: 16px; }
.login-card { width: 100%; max-width: 360px; padding: 24px; }
.login-title { margin: 0 0 16px; font-size: 20px; text-align: center; }
.login-hint { margin: 0 0 12px; font-size: 14px; color: var(--text-muted); }
.login-submit { width: 100%; justify-content: center; }