/* ==========================================================================
   Gobarito — estilos da navegação pública compartilhada (js/nav-publica.js).
   Escopo: cabeçalho e controles de navegação, sem regras para o conteúdo.
   Cores, sombras e raios vêm de css/tokens.css; o modo escuro troca
   os tokens via [data-theme="dark"] no <html>.
   ========================================================================== */

#nav-publica {
    position: sticky;
    top: 0;
    z-index: 40;
}

#nav-publica .landing-topbar {
    position: relative;
}

.landing-topbar {
    position: sticky;
    top: 0;
    z-index: 40;
    min-height: var(--topbar-height);
    border-bottom: 1px solid var(--line);
    background: var(--surface);
    backdrop-filter: none;
    -webkit-backdrop-filter: none;
    font-family: var(--font-principal);
    transition: box-shadow 0.2s ease;
}

.landing-topbar.is-scrolled {
    box-shadow: none;
}

/* A largura é definida aqui (e não herdada de .landing-shell) para o header
   ficar de pé sozinho, mesmo que a página não carregue outro stylesheet. */
.landing-topbar-inner {
    box-sizing: border-box;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 14px;
    width: min(1280px, calc(100% - 48px));
    min-height: var(--topbar-height);
    margin: 0 auto;
}

.landing-topbar .brand-lockup {
    display: inline-flex;
    align-items: center;
    flex: 0 0 auto;
    text-decoration: none;
}

.landing-topbar .brand-lockup img {
    width: auto;
    height: 29px;
}

[data-theme="dark"] .landing-topbar .brand-lockup img {
    filter: brightness(0) invert(1);
}

.landing-topbar .landing-nav {
    display: flex;
    align-items: center;
    justify-content: flex-end;
    gap: 6px;
}

.landing-topbar .landing-nav a,
.landing-topbar .landing-nav button,
.landing-topbar .nav-cta,
.landing-topbar .landing-nav .nav-cta {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    min-height: 44px;
    border-radius: 6px;
    text-decoration: none;
    font-weight: 600;
    box-sizing: border-box;
    font-family: inherit;
    line-height: 1.2;
    white-space: nowrap;
}

.landing-topbar .landing-nav a,
.landing-topbar .landing-nav button {
    padding: 0 10px;
    border: 0;
    border-bottom: 3px solid transparent;
    border-radius: 3px 3px 0 0;
    background: var(--papel-alt);
    color: var(--muted);
    font-size: 0.9rem;
}

/* Links e botões mantêm o mesmo tratamento de aba/marcador. */
.landing-topbar .landing-nav button {
    cursor: pointer;
}

.landing-topbar .landing-nav a:hover,
.landing-topbar .landing-nav button:hover {
    color: var(--azul-gobarito);
}

.landing-topbar .landing-nav :is(a, button).is-ativo {
    color: var(--azul-gobarito);
    border-bottom-color: var(--marca-filete);
    background: var(--acento-azul-superficie);
}

.landing-topbar .landing-header-actions {
    display: flex;
    align-items: center;
    gap: 10px;
    flex-shrink: 0;
}

/* Ação tem seu próprio par de fundo/texto acessível em cada tema. */
.landing-topbar .nav-cta {
    padding: 0 15px;
    color: var(--marca-cta-texto);
    background: var(--marca-cta-fundo);
    font-size: 1rem;
}

.landing-topbar .nav-cta:hover,
.landing-topbar .landing-nav .nav-cta:hover {
    background: var(--acao-primaria-hover);
    color: var(--marca-cta-texto);
}

.nav-cta-label-curto {
    display: none;
}

.landing-topbar .nav-tema-toggle,
.landing-topbar .landing-menu-toggle {
    box-sizing: border-box;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 40px;
    height: 40px;
    padding: 0;
    border: 1px solid var(--line);
    border-radius: 999px;
    color: var(--muted);
    background: transparent;
    font-size: 1.25rem;
    line-height: 1;
    cursor: pointer;
    transition: color 0.18s ease, border-color 0.18s ease, background 0.18s ease;
}

.landing-topbar .nav-tema-toggle:hover,
.landing-topbar .landing-menu-toggle:hover {
    color: var(--azul-gobarito);
    border-color: var(--line-strong);
    background: var(--papel-alt);
}

/* O hambúrguer só aparece no breakpoint mobile; o toggle de tema fica sempre
   visível. */
.landing-topbar .landing-menu-toggle {
    display: none;
}

.landing-topbar :is(a, button):focus-visible {
    outline: none;
    box-shadow: var(--focus-ring);
}

/* --- Mobile: nav vira painel dropdown sob o header ------------------------ */

@media (max-width: 1100px) {
    .landing-topbar-inner {
        position: relative;
    }

    .landing-topbar .landing-menu-toggle {
        display: inline-flex;
    }

    .landing-topbar .landing-nav {
        position: absolute;
        top: calc(100% + 8px);
        left: 0;
        right: 0;
        flex-direction: column;
        align-items: stretch;
        gap: 4px;
        padding: 12px;
        border: 1px solid var(--line);
        border-radius: var(--radius);
        background: var(--surface-strong);
        box-shadow: var(--shadow);
        opacity: 0;
        visibility: hidden;
        transform: translateY(-6px);
        pointer-events: none;
        transition: opacity 0.18s ease, transform 0.18s ease, visibility 0.18s ease;
    }

    .landing-topbar .landing-nav.is-open {
        opacity: 1;
        visibility: visible;
        transform: translateY(0);
        pointer-events: auto;
    }

    .landing-topbar .landing-nav a,
    .landing-topbar .landing-nav button {
        justify-content: flex-start;
        min-height: 44px;
    }
}

@media (max-width: 720px) {
    .landing-topbar-inner {
        width: calc(100% - 32px);
        gap: 10px;
    }

    .landing-topbar .nav-cta {
        padding: 0 12px;
        font-size: 0.78rem;
    }
}

@media (max-width: 480px) {
    .landing-topbar .brand-lockup img {
        width: 98px;
        height: auto;
    }

    .landing-topbar .landing-header-actions {
        gap: 6px;
    }

    .landing-topbar .nav-cta {
        padding: 0 9px;
        font-size: 0.72rem;
    }

    .nav-cta-label-longo {
        display: none;
    }

    .nav-cta-label-curto {
        display: inline;
    }

    .landing-topbar .nav-tema-toggle,
    .landing-topbar .landing-menu-toggle {
        width: 36px;
        height: 36px;
    }
}

/* Sem JavaScript, os links precisam continuar acessíveis no celular. */
@media (max-width: 1100px) {
    noscript .landing-topbar-inner {
        flex-wrap: wrap;
        padding-block: 12px;
    }

    noscript .landing-topbar .landing-nav {
        position: static;
        width: 100%;
        flex-direction: row;
        flex-wrap: wrap;
        justify-content: flex-start;
        opacity: 1;
        visibility: visible;
        transform: none;
        pointer-events: auto;
    }
}

@media (prefers-reduced-motion: reduce) {
    .landing-topbar,
    .landing-topbar .landing-nav,
    .landing-topbar .nav-tema-toggle,
    .landing-topbar .landing-menu-toggle {
        transition: none;
    }
}