.auth-wrap { max-width: 420px; margin: 60px auto; padding: 0 28px 56px; }
.auth-tabs { display: flex; gap: 6px; margin-bottom: 20px; }
.auth-tab-btn { flex: 1; background: var(--surface); border: 1px solid var(--border); padding: 10px; font-size: 13px; cursor: pointer; color: var(--text-secondary); font-family: var(--font-sans); border-radius: 6px; }
.auth-tab-btn.active { border-color: var(--wine); color: var(--wine); font-weight: 500; }
.auth-form { display: none; flex-direction: column; gap: 12px; }
.auth-form.active { display: flex; }
.auth-error { color: var(--wine); font-size: 12.5px; min-height: 16px; }
.checkout-box { border: 1px solid var(--border); border-radius: 10px; padding: 20px; margin-top: 20px; background: var(--surface); }