.site-header { position: sticky; top: 0; z-index: var(--z-header); background: var(--color-background); border-bottom: 1px solid var(--color-border); }
.site-header__inner { max-width: var(--content-max); margin: auto; padding: 1rem var(--gutter); min-height: 88px; display: flex; align-items: center; justify-content: space-between; gap: 1.5rem; }
.brand { display: inline-flex; gap: .65rem; align-items: center; min-height: 44px; text-decoration: none; min-width: 0; max-width: 100%; }
.brand__mark { display: grid; place-items: center; color: var(--color-action); }
.brand__mark img { display: block; width: 2.6rem; height: 2.6rem; }
.brand__name { min-width: 0; font-family: var(--font-display); font-weight: 750; font-size: 1.3rem; letter-spacing: -.05em; }
.brand__name span { font-weight: 400; }
.primary-nav { display: flex; gap: .5rem; align-items: center; }
.primary-nav .nav-link__icon { display: none; }
.site-header__end, .site-header__account { display: flex; align-items: center; gap: .65rem; }
.nav-link { display: inline-flex; justify-content: center; align-items: center; gap: .5rem; min-height: 44px; padding: .65rem .9rem; color: var(--color-text-secondary); border: 0; background: transparent; border-radius: 999px; font-size: .9rem; font-weight: 600; text-decoration: none; cursor: pointer; transition: color var(--motion-short), background var(--motion-short); }
.nav-link:hover, .nav-link--active { color: var(--color-action); background: var(--color-surface-subtle); }
.nav-link--emphasis { color: var(--color-text-inverse); background: var(--color-action); }
.nav-link--emphasis:hover { color: var(--color-text-inverse); background: var(--color-action-hover); }
.nav-link__icon { display: inline-flex; width: 1.3rem; height: 1.3rem; }
.nav-link__icon svg { width: 100%; height: 100%; }
.nav-link { position: relative; }
.nav-link__badge, .nav-link__unread { display: inline-grid; place-items: center; min-width: 1.25rem; height: 1.25rem; padding: 0 .25rem; border-radius: 999px; background: var(--color-accent); color: var(--color-surface); font-size: .7rem; font-weight: 750; }
.nav-link--mobile :is(.nav-link__badge, .nav-link__unread) { position: absolute; top: .2rem; left: calc(50% + .4rem); }
.account-menu { position: relative; }
.account-menu > summary { display: flex; align-items: center; gap: .65rem; list-style: none; min-height: 46px; padding: .25rem .45rem .25rem .8rem; border: 1px solid var(--color-border); border-radius: 999px; }
.account-menu > summary::-webkit-details-marker { display: none; }
.avatar { display: grid; place-items: center; flex-shrink: 0; width: 2.25rem; height: 2.25rem; border-radius: 50%; color: var(--color-text-inverse); background: var(--color-action); font-size: .85rem; font-weight: 700; }
.avatar--large { width: 5rem; height: 5rem; font-size: 1.75rem; }
.account-menu__panel { position: absolute; top: calc(100% + .7rem); right: 0; width: min(20rem, calc(100vw - 2.5rem)); padding: .6rem; background: var(--color-surface); border: 1px solid var(--color-border); border-radius: var(--radius-md); box-shadow: var(--shadow-overlay); }
.account-menu__panel .nav-link { width: 100%; justify-content: start; border-radius: var(--radius-sm); }
.account-menu__panel .nav-link:focus-visible { outline-offset: -3px; }
.account-menu__identity { display: flex; align-items: center; gap: .75rem; padding: .5rem .9rem 1rem; border-bottom: 1px solid var(--color-border); margin-bottom: .4rem; }
.account-menu__identity-text { min-width: 0; }
.account-menu__identity strong, .account-menu__identity span { display: block; overflow-wrap: anywhere; }
.account-menu__identity span { color: var(--color-text-secondary); font-size: .8rem; }
.account-menu__divider { height: 1px; margin: .4rem .3rem; background: var(--color-border); border: 0; }
.account-menu__sign-out:hover, .account-menu__sign-out:focus-visible { color: var(--color-danger); background: var(--color-accent-soft); }
.site-header__sign-out { margin: 0; }
.mobile-nav { display: none; }
.site-footer { border-top: 1px solid var(--color-border); background: var(--color-surface-subtle); }
.site-footer__inner { max-width: var(--content-max); margin: auto; padding: 3.5rem var(--gutter) 1.5rem; }
.site-footer__grid { display: grid; grid-template-columns: 2fr 1fr 1fr; gap: 3rem; }
.site-footer__intro > p { color: var(--color-text-secondary); max-width: 22rem; margin-top: 1rem; }
.site-footer__links { display: flex; flex-direction: column; align-items: start; }
.site-footer__links h2 { font: 700 .8rem var(--font-body); letter-spacing: .08em; text-transform: uppercase; margin: .7rem 0 1rem; }
.site-footer__links a { min-height: 44px; padding-block: .5rem; font-size: .9rem; color: var(--color-text-secondary); text-decoration: none; }
.site-footer__links a:hover { color: var(--color-action); text-decoration: underline; }
.site-footer__bottom { display: flex; justify-content: space-between; gap: 1rem; flex-wrap: wrap; border-top: 1px solid var(--color-border); padding-top: 1.5rem; margin-top: 2.5rem; color: var(--color-text-secondary); font-size: .8rem; }
@media (max-width: 63.99rem) {
  .primary-nav { display: none; }
  .site-header__inner { min-height: 74px; padding-block: .7rem; flex-wrap: wrap; gap: .75rem; }
  .mobile-nav { position: fixed; bottom: 0; inset-inline: 0; z-index: var(--z-header); display: grid; grid-template-columns: repeat(auto-fit, minmax(3.4rem, 1fr)); padding: .4rem .5rem calc(.4rem + env(safe-area-inset-bottom)); background: var(--color-surface); border-top: 1px solid var(--color-border); }
  .nav-link--mobile { flex-direction: column; padding: .5rem .1rem; gap: .3rem; font-size: .75rem; border-radius: 12px; }
  .nav-link--mobile.nav-link--emphasis { margin-inline: .4rem; }
  .site-footer { padding-bottom: calc(var(--mobile-nav-height, 5rem) + env(safe-area-inset-bottom)); }
  html { scroll-padding-bottom: calc(var(--mobile-nav-height, 5rem) + 1rem); }
}
@media (max-width: 47.99rem) {
  .header-sell { display: none; }
  .site-footer__grid { grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 2rem; }
  .site-footer__intro { grid-column: 1 / -1; }
  .brand__name { font-size: 1.15rem; }
  .brand__mark img { width: 2rem; height: 2rem; }
}
.site-footer__links a { max-width: 100%; overflow-wrap: anywhere; }