/**
 * NEO Theme - モバイルナビ
 */
.neo-mobile-nav { position: fixed; inset: 0; z-index: var(--neo-z-overlay); background: rgba(0,0,0,0.5); opacity: 0; visibility: hidden; transition: opacity var(--neo-transition-base), visibility var(--neo-transition-base); }
.neo-mobile-nav.is-open { opacity: 1; visibility: visible; }
.neo-mobile-nav__panel { position: absolute; top: 0; right: 0; width: min(320px, 85vw); height: 100%; background: var(--neo-color-bg); transform: translateX(100%); transition: transform var(--neo-transition-spring); overflow-y: auto; -webkit-overflow-scrolling: touch; box-shadow: var(--neo-shadow-xl); }
.neo-mobile-nav.is-open .neo-mobile-nav__panel { transform: translateX(0); }
.neo-mobile-nav__header { display: flex; align-items: center; justify-content: space-between; padding: var(--neo-space-md) var(--neo-space-lg); border-bottom: 1px solid var(--neo-color-border-light); }
.neo-mobile-nav__close { width: 40px; height: 40px; display: flex; align-items: center; justify-content: center; border-radius: var(--neo-radius-md); }
.neo-mobile-nav__close:hover { background: var(--neo-color-bg-subtle); }
.neo-mobile-nav__list { padding: var(--neo-space-md) 0; }
.neo-mobile-nav__item a { display: block; padding: var(--neo-space-md) var(--neo-space-lg); font-size: var(--neo-font-size-base); color: var(--neo-color-text); border-bottom: 1px solid var(--neo-color-border-light); transition: background var(--neo-transition-fast); }
.neo-mobile-nav__item a:hover { background: var(--neo-color-bg-alt); }
body.neo-nav-open { overflow: hidden; }