.auth-wrap { min-height: 100vh; display: grid; place-items: center; padding: 24px; }
.auth-card { width: 100%; max-width: 420px; background: rgba(255,255,255,.8); backdrop-filter: blur(6px);
  border-radius: 16px; padding: 24px; box-shadow: 0 10px 30px rgba(0,0,0,.08); }
[data-bs-theme="dark"] .auth-card { background: rgba(17,17,17,.7); }
.logo { font-weight: 800; letter-spacing: .08em; color: var(--brand); margin-bottom: 8px; }