.interface-switch { display: inline-flex; align-items: center; justify-content: center; min-height: 44px; padding: 8px 12px; border: 1px solid var(--line, #ddd); border-radius: 10px; color: var(--ink, #262824); background: var(--white, #fff); text-decoration: none; font-size: 14px; white-space: nowrap; }
.interface-switch:hover { text-decoration: underline; text-underline-offset: 4px; }
.interface-switch:focus-visible { outline: 2px solid #536bd3; outline-offset: 3px; }
.auth-card > .interface-switch { margin-top: 16px; }
.header-actions { flex-wrap: wrap; }