/* ==========================================================================
   section-nav-anchors.css - Seção 2: Barra de Âncoras (Navegação Interna)
   Design System Fiel ao Figma · 100% Mobile-First com clamp()
   Container: 1280px Fill × 64px · Border Bottom 1px #E8E2D6
   Tipografia: Source Sans 3 SemiBold 16px · Sublinhado: 1px #301604
   ========================================================================== */

.section-nav-anchors-wrapper {
    position: relative;
    width: 100%;
    min-height: 64px;
}

.section-nav-anchors {
    box-sizing: border-box;
    display: flex;
    flex-direction: row;
    justify-content: center;
    align-items: center;
    width: 100%;
    min-height: 64px;
    height: 64px;
    padding: 0 clamp(16px, 5vw, 64px);
    border-bottom: 1px solid var(--color-neutral-300, #E8E2D6);
    background-color: var(--color-base-papel, #F6F1E8);
    position: relative;
    z-index: 11;
    overflow: hidden;
    transition: box-shadow 0.25s ease;
}

/* Estado Fixo (Acompanha o Scroll logo abaixo do Header) */
.section-nav-anchors.is-fixed {
    position: fixed;
    left: 0;
    right: 0;
    width: 100%;
    z-index: 990;
    box-shadow: 0 4px 16px rgba(28, 26, 24, 0.05);
}

.section-nav-anchors__inner {
    display: flex;
    flex-direction: row;
    justify-content: flex-end;
    align-items: center;
    width: 100%;
    max-width: 1152px;
    height: 40px;
    flex-grow: 1;
    box-sizing: border-box;
}

/* Lista de Âncoras / Links */
.section-nav-anchors__list {
    display: flex;
    flex-direction: row;
    align-items: center;
    justify-content: flex-end;
    gap: clamp(16px, 2.5vw, 28px);
    list-style: none;
    margin: 0;
    padding: 0;
    width: 100%;
    height: 40px;
    box-sizing: border-box;
    overflow-x: auto;
    overflow-y: hidden;
    scrollbar-width: none; /* Firefox */
    -ms-overflow-style: none; /* IE e Edge */
    -webkit-overflow-scrolling: touch;
}

.section-nav-anchors__list::-webkit-scrollbar {
    display: none; /* Chrome, Safari e Opera */
}

@media (min-width: 768px) {
    .section-nav-anchors__list {
        justify-content: flex-end;
        overflow-x: visible;
        width: auto;
    }
}

/* Item da Lista */
.section-nav-anchors__item {
    display: flex;
    flex-direction: column;
    align-items: center;
    flex: none;
    margin: 0;
    padding: 0;
}

/* Link / Âncora Interativo */
.section-nav-anchors__link {
    position: relative;
    display: inline-flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    height: 40px;
    padding: 8px 0px;
    gap: 6px;
    isolation: isolate;
    text-decoration: none;
    white-space: nowrap;
    outline: none;
    transition: color 0.2s cubic-bezier(0.16, 1, 0.3, 1);
}

/* Rótulo / Texto do Link */
.section-nav-anchors__label {
    display: block;
    font-family: var(--font-sans, 'Source Sans 3', sans-serif);
    font-style: normal;
    font-weight: 600;
    font-size: 16px;
    line-height: 24px;
    letter-spacing: 0.01em;
    color: var(--color-neutral-800, #3A3733);
    transition: color 0.2s cubic-bezier(0.16, 1, 0.3, 1);
}

/* Sublinhado Dinâmico Fiel ao Figma (1px solid #301604 / cor da casa) */
.section-nav-anchors__underline {
    position: absolute;
    height: 1px;
    left: 0px;
    right: 0px;
    bottom: 8px;
    background-color: var(--casa-acento-900, #301604);
    opacity: 0;
    transform: scaleX(0);
    transform-origin: center;
    transition: opacity 0.2s ease, transform 0.2s cubic-bezier(0.16, 1, 0.3, 1);
    pointer-events: none;
    z-index: 1;
}

/* Estados Interativos: Hover, Focus e Ativo */
.section-nav-anchors__link:hover .section-nav-anchors__label,
.section-nav-anchors__link:focus-visible .section-nav-anchors__label,
.section-nav-anchors__link.is-active .section-nav-anchors__label,
.section-nav-anchors__link[aria-current="true"] .section-nav-anchors__label {
    color: var(--casa-acento-900, #301604);
}

.section-nav-anchors__link:hover .section-nav-anchors__underline,
.section-nav-anchors__link:focus-visible .section-nav-anchors__underline,
.section-nav-anchors__link.is-active .section-nav-anchors__underline,
.section-nav-anchors__link[aria-current="true"] .section-nav-anchors__underline {
    opacity: 1;
    transform: scaleX(1);
}

/* Acessibilidade: anel de foco visível para navegação por teclado */
.section-nav-anchors__link:focus-visible {
    outline: 2px solid var(--casa-acento-600, #8A5B3B);
    outline-offset: 2px;
    border-radius: var(--radius-sm, 2px);
}