/* ============================================================
   LIIT — Mobile navigation (shared by all pages)
   ≤960px: desktop .nav is hidden → hamburger + slide-down menu
   ============================================================ */
.nav-toggle {
  display: none; align-items: center; justify-content: center;
  width: 40px; height: 40px; margin-left: 4px; flex: 0 0 auto;
  background: transparent; border: 1px solid var(--border-strong); border-radius: var(--radius-sm);
  color: var(--fg); cursor: pointer; padding: 0;
}
.nav-toggle:hover { background: var(--bg-muted); }
.nav-toggle:focus-visible { outline: 2px solid var(--brand); outline-offset: 2px; }
.nav-toggle__bars { position: relative; width: 18px; height: 12px; display: block; }
.nav-toggle__bars::before, .nav-toggle__bars::after, .nav-toggle__bars span {
  content: ""; position: absolute; left: 0; width: 18px; height: 2px; border-radius: 2px;
  background: currentColor; transition: transform var(--dur-base) var(--ease-out), opacity var(--dur-base) var(--ease-out), top var(--dur-base) var(--ease-out);
}
.nav-toggle__bars::before { top: 0; }
.nav-toggle__bars span { top: 5px; }
.nav-toggle__bars::after { top: 10px; }
.nav-toggle[aria-expanded="true"] .nav-toggle__bars::before { top: 5px; transform: rotate(45deg); }
.nav-toggle[aria-expanded="true"] .nav-toggle__bars span { opacity: 0; }
.nav-toggle[aria-expanded="true"] .nav-toggle__bars::after { top: 5px; transform: rotate(-45deg); }

.mobile-menu {
  display: none; position: fixed; left: 0; right: 0; top: 72px; z-index: 49;
  max-height: calc(100dvh - 72px); overflow-y: auto; -webkit-overflow-scrolling: touch;
  background: var(--bg); border-bottom: 1px solid var(--border); box-shadow: var(--shadow-lg);
  padding: 8px 16px 20px;
}
.mobile-menu.is-open { display: block; animation: mobileMenuIn var(--dur-base) var(--ease-out); }
@keyframes mobileMenuIn { from { opacity: 0; transform: translateY(-6px); } to { opacity: 1; transform: none; } }
.mobile-menu__list { list-style: none; margin: 0; padding: 0; }
.mobile-menu__link {
  display: flex; align-items: center; justify-content: space-between;
  padding: 14px 8px; font-size: 16px; font-weight: var(--weight-medium); color: var(--fg);
  text-decoration: none; border-bottom: 1px solid var(--border); word-break: keep-all;
}
.mobile-menu__link::after { content: "\203A"; color: var(--fg-subtle); font-size: 18px; }
.mobile-menu__link.is-current { color: var(--brand-active); font-weight: var(--weight-semibold); }
.mobile-menu__actions { display: grid; grid-template-columns: 1fr 1fr; gap: 10px; margin-top: 16px; }
.mobile-menu__actions .btn--kakao, .mobile-menu__actions .btn { height: 46px; justify-content: center; font-size: 15px; width: 100%; }
.mobile-menu__actions .btn--kakao { border-radius: var(--radius-md); }
.mobile-menu-backdrop { display: none; position: fixed; inset: 72px 0 0; z-index: 48; background: rgba(14,19,24,0.35); }
.mobile-menu-backdrop.is-open { display: block; }
body.menu-open { overflow: hidden; }

@media (max-width: 960px) {
  .site-header .nav { display: none; }
  .site-header__inner { justify-content: flex-start; }
  .site-header .brand { margin-right: auto; }
  .nav-toggle { display: inline-flex; }
  /* compact header actions: kakao → icon only, keep cocso button */
  .site-header .header-actions { gap: 6px; }
  .site-header .header-actions .btn--kakao { font-size: 0; gap: 0; width: 36px; height: 36px; padding: 0; border-radius: var(--radius-sm); }
  .site-header .header-actions .btn--kakao svg { width: 18px; height: 18px; }
  .site-header .header-actions .btn--ghost { display: none; }
}
@media (max-width: 400px) {
  .site-header .header-actions .btn--primary.btn--sm { display: none; }
}