/* Menu principal com submenus */
.site-nav { max-width: 1100px; margin: 0 auto; padding: 0 20px; display: flex; align-items: center; justify-content: space-between; flex-wrap: wrap; }
.site-logo { font-weight: 700; font-size: 1.2rem; color: var(--text-dark); text-decoration: none; padding: 14px 0; }
.nav-toggle { display: none; background: none; border: 1px solid #ced4da; border-radius: 4px; font-size: 1.3rem; padding: 4px 10px; cursor: pointer; }
.nav-list { list-style: none; margin: 0; padding: 0; display: flex; align-items: center; gap: 4px; }
.nav-list a { display: block; padding: 14px 10px; color: var(--text-dark); text-decoration: none; font-weight: 600; font-size: 15px; }
.nav-list a:hover, .nav-list a:focus-visible { color: var(--primary-color); }
.has-submenu { position: relative; }
.submenu { display: none; position: absolute; top: 100%; left: 0; min-width: 260px; list-style: none; margin: 0; padding: 6px 0; background: #fff; border-radius: 0 0 var(--radius) var(--radius); box-shadow: var(--shadow); z-index: 60; }
.submenu a { padding: 9px 16px; font-weight: 400; }
.has-submenu:hover > .submenu,
.has-submenu:focus-within > .submenu,
.has-submenu.open > .submenu { display: block; }

@media (max-width: 900px) {
    .nav-toggle { display: block; }
    .nav-list { display: none; width: 100%; flex-direction: column; align-items: stretch; padding-bottom: 10px; }
    .nav-list.open { display: flex; }
    .submenu { position: static; box-shadow: none; padding-left: 14px; }
    .has-submenu:hover > .submenu, .has-submenu:focus-within > .submenu { display: none; }
    .has-submenu.open > .submenu { display: block; }
}