.nav-settings { margin-top: 20px; border-top: 1px solid var(--border); padding-top: 16px; }
.nav-settings summary { display: flex; align-items: center; gap: 10px; padding: 12px 14px; cursor: pointer; border-radius: 9px; color: var(--ink); font-size: 14px; font-weight: 600; list-style: none; user-select: none; }
.nav-settings summary::-webkit-details-marker { display: none; }
.nav-settings summary:hover, .nav-settings[open] summary { background: #edf3ee; }
.nav-settings summary:focus-visible { outline: 3px solid #89baaa; outline-offset: 2px; }
.settings-chevron { margin-left: auto; transition: transform .18s ease; }
.nav-settings[open] .settings-chevron { transform: rotate(180deg); }
.settings-links { margin: 8px 0 0 15px; padding-left: 8px; border-left: 1px solid var(--border); display: grid; gap: 4px; }
.module-nav .settings-links a { font-size: 13px; padding: 10px 8px; }
.purchase-form-page { max-width: 850px; margin: 0 auto; }
@media (prefers-reduced-motion: reduce) { .settings-chevron { transition: none; } }
@media (max-width: 900px) { .nav-settings { flex-basis: 100%; width: 100%; margin-top: 4px; padding-top: 8px; } }