/**
 * LEMP · Estilos de Seções e Estruturas Globais
 * Fidelidade milimétrica às pranchas do PDF "LEMP - SITE 2027":
 * 1. Header Fixo e Adaptativo ao Rolar (.header-scrolled)
 * 2. Menu Fullscreen Overlay (Prancha 2 do PDF)
 * 3. Seção Hero (Prancha 1 do PDF)
 * 4. Seção Projetos em Destaque (Prancha 1 do PDF)
 * 5. Seção Serviços e Manifesto (Prancha 3 do PDF)
 * 6. Seção Contato e Formulário "VAMOS CONVERSAR" (Prancha 1 do PDF)
 * 7. Rodapé Discreto e Animações Reveal on Scroll
 */

/* ==========================================================================
   1. HEADER FIXO SUPERIOR
   Barra escura minimalista no topo da página
   ========================================================================== */
.header-principal {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    min-height: var(--lemp-header-height);
    background-color: var(--lemp-color-header);
    color: var(--lemp-color-text-light);
    z-index: 1000;
    display: flex;
    align-items: center;
    border-bottom: 1px solid rgba(255, 255, 255, 0.05);
    transition: background-color var(--lemp-trans-fast), 
                box-shadow var(--lemp-trans-fast), 
                border-bottom-color var(--lemp-trans-fast),
                backdrop-filter var(--lemp-trans-fast);
}

/* Estado do Header quando a página é rolada (Header Scrolled) */
.header-principal.header-scrolled {
    background-color: rgba(20, 20, 20, 0.94);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border-bottom-color: rgba(255, 255, 255, 0.1);
    box-shadow: 0 4px 24px rgba(0, 0, 0, 0.28);
}

.header-container {
    display: flex;
    align-items: center;
    justify-content: space-between;
    width: 100%;
}

/* Logotipo institucional da LEMP */
.header-logo,
.menu-logo {
    display: inline-flex;
    align-items: center;
    text-decoration: none;
    color: var(--lemp-color-text-light);
}

.logo-marca {
    font-family: var(--lemp-font-display);
    font-size: 1.25rem;
    font-weight: var(--lemp-fw-light);
    letter-spacing: var(--lemp-ls-extra-wide);
    text-transform: uppercase;
    color: var(--lemp-color-text-light);
    line-height: 1;
}

/* Área de Ações do Header (Idioma + Hambúrguer) */
.header-acoes {
    display: flex;
    align-items: center;
    gap: clamp(1.2rem, 3vw, 2.2rem);
}

/* Seletor de Idioma (PT / EN) */
.seletor-idioma {
    display: flex;
    align-items: center;
    gap: 0.35rem;
    font-family: var(--lemp-font-display);
    font-size: var(--lemp-font-micro);
    font-weight: var(--lemp-fw-light);
    letter-spacing: var(--lemp-ls-wide);
    color: var(--lemp-color-text-light);
    user-select: none;
}

.link-idioma {
    color: var(--lemp-color-text-light);
    opacity: 0.5;
    padding: 2px 3px;
    text-decoration: none;
    position: relative;
    transition: opacity var(--lemp-trans-fast), color var(--lemp-trans-fast);
}

.link-idioma:hover,
.link-idioma:focus-visible {
    opacity: 0.9;
}

.link-idioma.ativo {
    opacity: 1;
    font-weight: var(--lemp-fw-bold);
    color: var(--lemp-color-text-light);
}

.link-idioma.ativo::after {
    content: '';
    position: absolute;
    bottom: -1px;
    left: 3px;
    right: 3px;
    height: 1px;
    background-color: var(--lemp-color-text-light);
}

.divisor-idioma {
    opacity: 0.35;
    font-weight: var(--lemp-fw-thin);
}

/* Botão Hambúrguer Minimalista (2 linhas finas do PDF) */
.btn-menu-hamburguer {
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: flex-end;
    gap: 6px;
    width: 36px;
    height: 32px;
    background: transparent;
    border: none;
    cursor: pointer;
    padding: 4px;
    color: var(--lemp-color-text-light);
    transition: opacity var(--lemp-trans-fast);
}

.btn-menu-hamburguer:hover {
    opacity: 0.8;
}

.btn-menu-hamburguer:focus-visible {
    outline: 2px solid var(--lemp-color-text-light);
    outline-offset: 3px;
}

.hamburguer-linha {
    display: block;
    width: 26px;
    height: 1.5px;
    background-color: var(--lemp-color-text-light);
    border-radius: 1px;
    transition: transform var(--lemp-trans-fast), width var(--lemp-trans-fast);
}

.btn-menu-hamburguer:hover .linha-2 {
    width: 20px;
}


/* ==========================================================================
   2. MENU FULLSCREEN OVERLAY (PRANCHA 2 DO PDF)
   Fundo escuro (#141414), navegação centralizada em caixa baixa e rodapé social
   ========================================================================== */
.menu-overlay {
    position: fixed;
    inset: 0;
    width: 100vw;
    height: 100vh;
    height: 100dvh;
    background-color: var(--lemp-color-menu-bg);
    color: var(--lemp-color-text-light);
    z-index: 2000;
    display: flex;
    flex-direction: column;
    justify-content: space-between;
    padding-top: 0;
    padding-bottom: clamp(1.5rem, 3.5vw, 3rem);
    opacity: 0;
    visibility: hidden;
    transform: translateY(-8px);
    transition: opacity var(--lemp-trans-smooth), 
                visibility var(--lemp-trans-smooth), 
                transform var(--lemp-trans-smooth);
    overflow-y: auto;
}

.menu-overlay.ativo {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
}

.menu-overlay-header {
    min-height: var(--lemp-header-height);
    display: flex;
    align-items: center;
    justify-content: space-between;
    width: 100%;
}

.menu-header-acoes {
    display: flex;
    align-items: center;
    gap: clamp(1.2rem, 3vw, 2.2rem);
}

.btn-fechar-menu {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 36px;
    height: 36px;
    background: transparent;
    border: none;
    color: var(--lemp-color-text-light);
    cursor: pointer;
    padding: 0;
    transition: transform var(--lemp-trans-fast), opacity var(--lemp-trans-fast);
}

.btn-fechar-menu:hover {
    opacity: 0.8;
    transform: rotate(90deg);
}

.btn-fechar-menu:focus-visible {
    outline: 2px solid var(--lemp-color-text-light);
    outline-offset: 3px;
}

.menu-nav-central {
    text-align: center;
    padding: 2rem 1rem;
    margin: auto 0;
}

.menu-lista {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: clamp(1rem, 2.5vh, 2.2rem);
}

.menu-link {
    font-family: var(--lemp-font-display);
    font-size: clamp(2.6rem, 6.8vw, 5.25rem);
    font-weight: var(--lemp-fw-thin);
    color: var(--lemp-color-text-light);
    letter-spacing: var(--lemp-ls-tight);
    line-height: 1.1;
    display: inline-block;
    transition: opacity var(--lemp-trans-fast), transform var(--lemp-trans-fast);
}

.menu-link:hover,
.menu-link:focus-visible {
    opacity: 0.7;
    transform: scale(1.03);
}

.menu-overlay-footer {
    width: 100%;
}

.menu-redes-sociais {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    align-items: center;
    gap: clamp(1.8rem, 5vw, 4rem);
    font-family: var(--lemp-font-display);
    font-size: var(--lemp-font-micro);
    font-weight: var(--lemp-fw-light);
    letter-spacing: var(--lemp-ls-extra-wide);
    color: var(--lemp-color-text-light);
}

.link-social {
    color: var(--lemp-color-text-light);
    opacity: 0.75;
    transition: opacity var(--lemp-trans-fast);
    padding: 4px;
}

.link-social:hover,
.link-social:focus-visible {
    opacity: 1;
}

body.menu-aberto {
    overflow: hidden !important;
}


/* ==========================================================================
   3. ESTRUTURA DO CONTAINER PRINCIPAL E SEÇÃO HERO
   ========================================================================== */
.conteudo-principal {
    padding-top: var(--lemp-header-height);
    position: relative;
    width: 100%;
}

.secao-hero {
    padding-top: clamp(2.5rem, 5.5vw, 4.75rem);
    padding-bottom: clamp(3rem, 6.5vw, 5.5rem);
    background-color: var(--lemp-color-bg);
}

.titulo-hero {
    font-size: var(--lemp-font-hero);
    font-weight: var(--lemp-fw-thin);
    line-height: var(--lemp-lh-display);
    letter-spacing: var(--lemp-ls-tight);
    color: var(--lemp-color-text-main);
    margin-bottom: clamp(2rem, 4vw, 3rem);
    word-break: break-word;
}

.hero-acoes {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    gap: 0.85rem 1.25rem;
}


/* ==========================================================================
   4. SEÇÃO PROJETOS (GRID DE CASES)
   Fiel à Prancha 1 do PDF: card destaque superior + 2 cards inferiores
   ========================================================================== */
.secao-projetos {
    padding-top: clamp(1rem, 2vw, 2rem);
    padding-bottom: clamp(3.5rem, 7vw, 6rem);
    background-color: var(--lemp-color-bg);
}

.grid-projetos {
    --bs-gutter-x: clamp(1.25rem, 2.5vw, 2rem);
    --bs-gutter-y: clamp(1.25rem, 2.5vw, 2rem);
}

.card-projeto {
    position: relative;
    border-radius: var(--lemp-radius-card);
    overflow: hidden;
    background-color: var(--lemp-color-card-placeholder);
    width: 100%;
    transform: translateZ(0);
}

.card-projeto-link {
    display: block;
    position: relative;
    width: 100%;
    height: 100%;
    text-decoration: none;
    color: var(--lemp-color-text-light);
}

.card-projeto-destaque {
    aspect-ratio: 2.15 / 1;
    min-height: 280px;
}

.card-projeto-regular {
    aspect-ratio: 1.35 / 1;
    min-height: 260px;
}

@media (max-width: 767.98px) {
    .card-projeto-destaque,
    .card-projeto-regular {
        aspect-ratio: 16 / 11;
        border-radius: var(--lemp-radius-card-sm);
    }
}

.card-projeto-media {
    position: absolute;
    inset: 0;
    width: 100%;
    height: 100%;
    overflow: hidden;
}

.card-projeto-img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    object-position: center;
    display: block;
    transition: var(--lemp-trans-card);
}

.card-projeto-link:hover .card-projeto-img,
.card-projeto-link:focus-visible .card-projeto-img {
    transform: scale(1.045);
}

.card-projeto-overlay {
    position: absolute;
    inset: 0;
    background: linear-gradient(
        to top,
        rgba(0, 0, 0, 0.68) 0%,
        rgba(0, 0, 0, 0.28) 32%,
        rgba(0, 0, 0, 0.05) 55%,
        transparent 75%
    );
    pointer-events: none;
    transition: opacity var(--lemp-trans-fast);
}

.card-projeto-link:hover .card-projeto-overlay {
    opacity: 0.9;
}

.card-projeto-legenda {
    position: absolute;
    bottom: 0;
    left: 0;
    padding: clamp(1.4rem, 2.8vw, 2.6rem);
    z-index: 2;
    pointer-events: none;
    width: 100%;
}

.card-projeto-titulo {
    font-family: var(--lemp-font-display);
    font-size: var(--lemp-font-card-label);
    font-weight: var(--lemp-fw-bold);
    text-transform: uppercase;
    color: var(--lemp-color-text-light);
    letter-spacing: var(--lemp-ls-wide);
    line-height: 1.2;
    margin: 0;
    text-shadow: 0 1px 3px rgba(0, 0, 0, 0.35);
}

.projetos-cta-container {
    display: flex;
    justify-content: center;
    align-items: center;
    margin-top: clamp(2.5rem, 5vw, 4.25rem);
    text-align: center;
}


/* ==========================================================================
   5. SEÇÃO SERVIÇOS (MANIFESTO E PILARES)
   Fiel à Prancha 3 do PDF: frase de propósito + 3 colunas + barra de ações
   ========================================================================== */
.secao-servicos {
    padding-top: clamp(3.5rem, 7vw, 6.5rem);
    padding-bottom: clamp(4rem, 8vw, 7.5rem);
    background-color: var(--lemp-color-bg);
}

.titulo-servicos {
    font-size: var(--lemp-font-services-hero);
    font-weight: var(--lemp-fw-thin);
    line-height: var(--lemp-lh-display);
    letter-spacing: var(--lemp-ls-tight);
    color: var(--lemp-color-text-main);
    margin-bottom: clamp(3rem, 6.5vw, 5.5rem);
    word-break: break-word;
}

.grid-servicos {
    margin-bottom: clamp(3.5rem, 6.5vw, 5.5rem);
}

.coluna-servico {
    padding-right: clamp(1rem, 2vw, 2.5rem);
}

.titulo-pilar {
    font-family: var(--lemp-font-display);
    font-size: var(--lemp-font-pillar-title);
    font-weight: var(--lemp-fw-light);
    text-transform: uppercase;
    letter-spacing: var(--lemp-ls-wide);
    color: var(--lemp-color-text-main);
    margin-bottom: clamp(1.2rem, 2vw, 1.8rem);
    line-height: 1.2;
}

.lista-servicos {
    display: flex;
    flex-direction: column;
    gap: 0.75rem;
}

.item-servico {
    font-family: var(--lemp-font-body);
    font-size: var(--lemp-font-body-size);
    font-weight: var(--lemp-fw-regular);
    color: var(--lemp-color-text-muted);
    line-height: 1.5;
    transition: color var(--lemp-trans-fast);
}

.item-servico:hover {
    color: var(--lemp-color-text-main);
}

.servicos-acoes {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    gap: 0.85rem 1.25rem;
}


/* ==========================================================================
   6. SEÇÃO CONTATO ("VAMOS CONVERSAR")
   Fiel à Prancha 1 do PDF: título display grande em duas linhas,
   coluna esquerda com parágrafos e canais diretos, coluna direita com formulário linear
   ========================================================================== */
.secao-contato {
    padding-top: clamp(3.5rem, 7vw, 6.5rem);
    padding-bottom: clamp(4.5rem, 9vw, 8.5rem);
    background-color: var(--lemp-color-bg);
}

.titulo-contato {
    font-size: var(--lemp-font-display-lg);
    font-weight: var(--lemp-fw-thin);
    line-height: 0.95;
    letter-spacing: var(--lemp-ls-tight);
    color: var(--lemp-color-text-main);
    margin-bottom: clamp(3rem, 6vw, 5rem);
    text-transform: uppercase;
}

.contato-paragrafo {
    font-family: var(--lemp-font-body);
    font-size: var(--lemp-font-body-size);
    font-weight: var(--lemp-fw-regular);
    color: var(--lemp-color-text-muted);
    line-height: 1.65;
    margin-bottom: 1.5rem;
    max-width: 520px;
}

.contato-canais {
    margin-top: clamp(1.8rem, 3.5vw, 2.75rem);
}

.form-lemp {
    width: 100%;
}

.campo-honeypot-wrap {
    position: absolute;
    left: -9999px;
    width: 0;
    height: 0;
    overflow: hidden;
    opacity: 0;
    pointer-events: none;
}

.form-acoes {
    margin-top: clamp(2rem, 4vw, 3rem);
    display: flex;
    flex-direction: column;
    align-items: flex-start;
    gap: 1rem;
}

.btn-pill-submit {
    min-width: 180px;
    transition: all var(--lemp-trans-fast);
}

.btn-pill-submit:disabled {
    opacity: 0.6;
    cursor: not-allowed;
}

.form-feedback {
    font-family: var(--lemp-font-body);
    font-size: 0.88rem;
    line-height: 1.4;
    transition: all var(--lemp-trans-fast);
}

.form-feedback.sucesso {
    color: #1E6B37;
    font-weight: var(--lemp-fw-medium);
}

.form-feedback.erro {
    color: #B02A1A;
    font-weight: var(--lemp-fw-medium);
}


/* ==========================================================================
   7. ANIMAÇÕES DE ENTRADA DISCRETAS (REVEAL ON SCROLL)
   Respeita rigorosamente a diretriz prefers-reduced-motion
   ========================================================================== */
@media (prefers-reduced-motion: no-preference) {
    .reveal-on-scroll {
        opacity: 0;
        transform: translateY(22px);
        transition: opacity 0.75s cubic-bezier(0.16, 1, 0.3, 1), 
                    transform 0.75s cubic-bezier(0.16, 1, 0.3, 1);
        will-change: opacity, transform;
    }

    .reveal-on-scroll.is-revealed {
        opacity: 1;
        transform: translateY(0);
    }

    .grid-servicos > div:nth-child(2) .coluna-servico.reveal-on-scroll {
        transition-delay: 0.12s;
    }

    .grid-servicos > div:nth-child(3) .coluna-servico.reveal-on-scroll {
        transition-delay: 0.24s;
    }
}


/* ==========================================================================
   8. RODAPÉ PADRÃO DO SITE
   ========================================================================== */
.footer-site {
    background-color: var(--lemp-color-bg);
    border-top: 1px solid rgba(0, 0, 0, 0.06);
    padding: 2.5rem 0;
    color: var(--lemp-color-text-muted);
    font-family: var(--lemp-font-body);
    font-size: var(--lemp-font-micro);
}

.footer-conteudo {
    display: flex;
    flex-wrap: wrap;
    justify-content: space-between;
    align-items: center;
    gap: 1rem;
}

.footer-copyright,
.footer-manifesto {
    margin: 0;
}

/* ==========================================================================
   9. PÁGINA 404 PERSONALIZADA (.secao-404)
   ========================================================================== */
.secao-404 {
    min-height: calc(85vh - var(--lemp-header-height));
    display: flex;
    align-items: center;
    background-color: var(--lemp-color-bg);
}

.subtitulo-404 {
    display: inline-block;
    font-family: var(--lemp-font-display);
    font-size: clamp(2.5rem, 6vw, 5rem);
    font-weight: var(--lemp-fw-thin);
    color: #CCCCCC;
    line-height: 1;
    letter-spacing: var(--lemp-ls-tight);
}