.auth { display: grid; place-items: center; padding: 48px 16px 72px; }
.auth-card { width: 100%; max-width: 400px; background: var(--paper); border: 1px solid var(--line); border-radius: 14px; padding: 28px; box-shadow: 0 12px 32px rgba(16, 24, 40, .08); }
.auth-card h1 { font-size: 1.5rem; margin: 0 0 6px; letter-spacing: -.02em; }
.auth-sub { color: var(--dim); margin: 0 0 18px; }
.auth-card form { display: flex; flex-direction: column; gap: 14px; margin-top: 14px; }
.auth-card label { display: flex; flex-direction: column; gap: 5px; font-weight: 650; font-size: .9rem; }
.auth-card input { font: inherit; font-weight: 400; padding: 10px 12px; border: 1px solid var(--line); border-radius: 8px; background: var(--paper); color: var(--ink); }
.auth-hint { color: var(--dim); font-weight: 400; font-size: .8rem; }
.auth-btn { width: 100%; margin-top: 4px; }
.auth-alt { text-align: center; color: var(--dim); font-size: .9rem; margin: 14px 0 0; }
.auth-alt a { color: var(--accent); font-weight: 600; }
.auth-msg { padding: 10px 12px; border-radius: 8px; font-weight: 600; margin-bottom: 8px; }
.auth-error { background: var(--red-soft); color: var(--red); }
.auth-success, .auth-info { background: var(--green-soft); color: var(--green); }