/* ==========================================================================
   Thayane Arquitetura - Stylesheet Oficial (Montserrat & Inter)
   Visual limpo, magnífico, 100% responsivo, profissional e sério.
   ========================================================================== */

/* Definição de Variáveis e Design System */
:root {
    /* Cores Oficiais da Paleta */
    --color-taupe-areia: #B9A99C;
    --color-cinza-areia: #E9E6E1;
    --color-branco-puro: #FFFFFF;
    --color-marfim-claro: #FDFCF8;
    --color-cinza-claro: #F0F0F0;
    --color-azul-acinzentado-claro: #D7DFEA;
    --color-azul-medio: #5376A0;
    --color-azul-ardosia: #3E5574;
    
    /* Tom exato de off-white de fundo do logotipo da Thayane */
    --color-bg-logo: #F7F6F3;
    
    /* Cores de Interface */
    --color-text-dark: #1E252D;
    --color-text-muted: #5A6673;
    --color-accent: #3E5574;
    
    /* Tipografia Séria e Moderna */
    --font-titles: 'Montserrat', sans-serif;
    --font-body: 'Inter', sans-serif;
    
    /* Transições e Efeitos */
    --transition-smooth: all 0.7s cubic-bezier(0.16, 1, 0.3, 1);
    --transition-medium: all 0.4s cubic-bezier(0.25, 0.46, 0.45, 0.94);
    --transition-fast: all 0.2s ease-out;
    --shadow-soft: 0 4px 30px rgba(0, 0, 0, 0.01);
    --shadow-medium: 0 10px 40px rgba(62, 85, 116, 0.03);
    --shadow-premium: 0 20px 50px rgba(28, 35, 43, 0.06);
}

/* Reset Geral */
*, *::before, *::after {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

html {
    scroll-behavior: smooth;
    font-size: 16px;
    -webkit-text-size-adjust: 100%;
}

body {
    font-family: var(--font-body);
    background-color: var(--color-branco-puro);
    color: var(--color-text-dark);
    line-height: 1.8;
    overflow-x: hidden;
}

a {
    color: inherit;
    text-decoration: none;
    transition: var(--transition-fast);
}

img {
    max-width: 100%;
    height: auto;
    display: block;
}

button {
    font-family: inherit;
    background: none;
    border: none;
    cursor: pointer;
}

/* Utilitários */
.nowrap {
    white-space: nowrap;
}

/* Centralização do Layout (Focado no meio, sem esticar) */
.section-container {
    width: 100%;
    max-width: 1000px;
    margin: 0 auto;
    padding: 100px 24px;
    display: flex;
    flex-direction: column;
    align-items: center;
    text-align: center;
}

.section-tag {
    display: inline-block;
    font-family: var(--font-titles);
    font-size: 11px;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 4px;
    color: var(--color-taupe-areia);
    margin-bottom: 16px;
}

.section-title {
    font-family: var(--font-titles);
    font-size: 34px;
    font-weight: 400;
    line-height: 1.25;
    color: var(--color-azul-ardosia);
    margin-bottom: 20px;
    letter-spacing: 2px;
    text-transform: uppercase;
}

.header-line {
    width: 50px;
    height: 1.5px;
    background-color: var(--color-taupe-areia);
    margin: 0 auto 30px auto;
}

.section-subtitle {
    font-size: 15px;
    color: var(--color-text-muted);
    font-weight: 300;
    max-width: 720px;
    line-height: 1.8;
    margin: 0 auto;
}

/* Alternância de Backgrounds */
.gallery-section.alt-bg, .about-section.alt-bg {
    background-color: var(--color-marfim-claro);
    border-top: 1px solid var(--color-cinza-areia);
    border-bottom: 1px solid var(--color-cinza-areia);
}

/* ==========================================================================
   Header / Navbar (Cor exata do Logotipo)
   ========================================================================== */
.main-header {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    z-index: 100;
    background-color: var(--color-bg-logo);
    border-bottom: 1px solid var(--color-cinza-areia);
    box-shadow: var(--shadow-soft);
    transition: var(--transition-smooth);
}

.main-header.scrolled {
    padding: 2px 0;
    box-shadow: var(--shadow-medium);
}

.header-container {
    max-width: 1100px;
    margin: 0 auto;
    padding: 16px 24px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    transition: var(--transition-smooth);
}

.main-header.scrolled .header-container {
    padding: 10px 24px;
}

.logo img {
    height: 52px;
    width: auto;
    object-fit: contain;
    transition: var(--transition-smooth);
}

.main-header.scrolled .logo img {
    height: 42px;
}

/* Menu de Navegação */
.nav-menu ul {
    list-style: none;
    display: flex;
    gap: 28px;
}

.nav-menu a {
    font-family: var(--font-titles);
    font-size: 12px;
    font-weight: 500;
    text-transform: uppercase;
    letter-spacing: 1.5px;
    color: var(--color-text-dark);
    position: relative;
    padding: 8px 0;
}

.nav-menu a::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 50%;
    width: 0;
    height: 1.5px;
    background-color: var(--color-taupe-areia);
    transition: var(--transition-smooth);
    transform: translateX(-50%);
}

.nav-menu a:hover {
    color: var(--color-taupe-areia);
}

.nav-menu a:hover::after {
    width: 100%;
}

/* Botões do Cabeçalho */
.header-actions {
    display: flex;
    align-items: center;
    gap: 16px;
}

.btn-whatsapp-header {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    background-color: var(--color-azul-ardosia);
    color: var(--color-branco-puro) !important;
    padding: 10px 20px;
    border-radius: 0px;
    font-family: var(--font-titles);
    font-size: 11px;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 1.5px;
    border: 1px solid var(--color-azul-ardosia);
    transition: var(--transition-smooth);
}

.btn-whatsapp-header:hover {
    background-color: var(--color-text-dark);
    border-color: var(--color-text-dark);
    transform: translateY(-2px);
}

/* Burger Button para Mobile */
.burger-menu {
    display: none;
    flex-direction: column;
    justify-content: space-between;
    width: 24px;
    height: 16px;
    z-index: 101;
}

.burger-menu .bar {
    width: 100%;
    height: 2px;
    background-color: var(--color-text-dark);
    transition: var(--transition-smooth);
}

/* Drawer Menu (Mobile) */
.mobile-drawer {
    position: fixed;
    top: 0;
    right: -300px;
    width: 300px;
    height: 100%;
    background-color: var(--color-bg-logo);
    z-index: 1000;
    box-shadow: -5px 0 35px rgba(28, 35, 43, 0.08);
    display: flex;
    flex-direction: column;
    transition: var(--transition-smooth);
}

.mobile-drawer.active {
    right: 0;
}

.drawer-header {
    padding: 24px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    border-bottom: 1px solid var(--color-cinza-areia);
}

.drawer-header img {
    height: 42px;
}

.close-drawer {
    font-size: 32px;
    color: var(--color-text-dark);
    line-height: 1;
}

.drawer-nav {
    padding: 40px 24px;
    flex-grow: 1;
}

.drawer-nav ul {
    list-style: none;
    display: flex;
    flex-direction: column;
    gap: 24px;
}

.drawer-nav a {
    font-family: var(--font-titles);
    font-size: 14px;
    font-weight: 500;
    text-transform: uppercase;
    letter-spacing: 2px;
    color: var(--color-text-dark);
    display: block;
    text-align: center;
}

.drawer-nav a:hover {
    color: var(--color-taupe-areia);
}

.drawer-footer {
    padding: 24px;
    border-top: 1px solid var(--color-cinza-areia);
}

.btn-whatsapp-drawer {
    display: flex;
    align-items: center;
    justify-content: center;
    background-color: var(--color-azul-ardosia);
    color: var(--color-branco-puro);
    padding: 14px 20px;
    font-family: var(--font-titles);
    font-size: 11px;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 2px;
}

.drawer-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(24, 27, 32, 0.4);
    z-index: 999;
    opacity: 0;
    pointer-events: none;
    transition: var(--transition-smooth);
}

.drawer-overlay.active {
    opacity: 1;
    pointer-events: auto;
}

/* ==========================================================================
   Hero Section com Parallax e Zoom Progressivo
   ========================================================================== */
.hero {
    position: relative;
    height: 100vh;
    width: 100%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--color-branco-puro);
    text-align: center;
    overflow: hidden;
    z-index: 10;
}

.hero-bg {
    position: absolute;
    top: -10%;
    left: 0;
    width: 100%;
    height: 120%;
    /* Imagem diferente do primeiro projeto para evitar repetição */
    background-image: linear-gradient(rgba(24, 27, 32, 0.45), rgba(24, 27, 32, 0.45)), url('imagens-projetos/fachada-moderna-6.jpeg');
    background-size: cover;
    background-position: center;
    z-index: 1;
    transform: scale3d(1.15, 1.15, 1); /* Inicia com zoom suave */
    will-change: transform;
}

.hero-content {
    position: relative;
    z-index: 2;
    max-width: 850px;
    padding: 0 24px;
    margin-top: 80px;
}

.hero-tag {
    display: inline-block;
    font-family: var(--font-titles);
    font-size: 11px;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 3px;
    color: var(--color-cinza-areia);
    margin-bottom: 24px;
    line-height: 1.6;
}

.hero-title {
    font-family: var(--font-titles);
    font-size: 54px;
    font-weight: 300;
    line-height: 1.2;
    margin-bottom: 24px;
    letter-spacing: 2px;
    text-transform: uppercase;
}

.hero-experience-badge {
    display: inline-block;
    font-family: var(--font-titles);
    font-size: 11px;
    font-weight: 500;
    text-transform: uppercase;
    letter-spacing: 2.5px;
    color: var(--color-branco-puro);
    background: rgba(255, 255, 255, 0.12);
    border: 1px solid rgba(255, 255, 255, 0.25);
    backdrop-filter: blur(8px);
    -webkit-backdrop-filter: blur(8px);
    padding: 5px 16px;
    border-radius: 20px;
    margin: 10px auto 20px auto;
}

.hero-subtitle {
    font-size: 15px;
    font-weight: 300;
    color: var(--color-cinza-claro);
    max-width: 650px;
    margin: 0 auto 40px auto;
    line-height: 1.8;
}

.btn-whatsapp-hero {
    display: inline-flex;
    align-items: center;
    gap: 12px;
    background-color: var(--color-branco-puro);
    color: var(--color-text-dark);
    padding: 16px 36px;
    font-family: var(--font-titles);
    font-size: 11px;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 2px;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.08);
    transition: var(--transition-smooth);
}

.btn-whatsapp-hero:hover {
    background-color: var(--color-azul-ardosia);
    color: var(--color-branco-puro);
    transform: translateY(-3px);
}

.scroll-indicator {
    position: absolute;
    bottom: 30px;
    left: 50%;
    transform: translateX(-50%);
    z-index: 2;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 8px;
    opacity: 0.8;
}

.scroll-indicator span {
    font-family: var(--font-titles);
    font-size: 10px;
    text-transform: uppercase;
    letter-spacing: 2px;
}

.arrow-down {
    width: 1px;
    height: 45px;
    background-color: rgba(255, 255, 255, 0.4);
    position: relative;
    overflow: hidden;
}

.arrow-down::after {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 15px;
    background-color: var(--color-branco-puro);
    animation: scrollAnimation 2.2s infinite;
}

/* ==========================================================================
   Galeria Contínua - Grid Responsivo Sem Cortes
   ========================================================================== */
.gallery-section {
    width: 100%;
}

.gallery-grid {
    width: 100%;
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 40px;
}

.gallery-item {
    position: relative;
    width: 100%;
    cursor: pointer;
    background-color: transparent;
    transition: var(--transition-smooth);
    display: flex;
    flex-direction: column;
    align-items: center;
}

.gallery-item.full-width {
    grid-column: span 2;
}

/* Image Wrapper do item: centraliza e isola o overflow-hidden para hover */
.image-wrapper {
    position: relative;
    width: 100%;
    display: block;
    overflow: hidden;
    box-shadow: var(--shadow-medium);
    border: 1px solid var(--color-cinza-areia);
}

/* Categoria fica aparecendo como etiqueta sobre a foto (estilo tarja/pill branca moderna) */
.category-label {
    position: absolute;
    top: 15px;
    left: 15px;
    background-color: var(--color-branco-puro);
    color: var(--color-azul-ardosia);
    font-family: var(--font-body);
    font-size: 13px;
    font-weight: 500;
    padding: 7px 18px;
    border-radius: 10px;
    letter-spacing: 0.2px;
    z-index: 5;
    border: 1px solid rgba(62, 85, 116, 0.15);
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.12);
    transition: var(--transition-medium);
}

.gallery-item:hover .category-label {
    background-color: var(--color-azul-ardosia);
    color: var(--color-branco-puro);
}

.image-wrapper img {
    width: 100%;
    height: auto;
    display: block;
    object-fit: contain;
    transition: var(--transition-smooth);
}

.gallery-item:hover .image-wrapper img {
    transform: scale(1.03);
}

/* Título fora/abaixo da foto */
.project-info {
    width: 100%;
    padding: 20px 0 0 0;
    text-align: center;
}

.project-info h4 {
    font-family: var(--font-titles);
    font-size: 19px;
    font-weight: 400;
    color: var(--color-azul-ardosia);
    line-height: 1.35;
    letter-spacing: 0.5px;
}

/* Comparador de Fachada Comercial Lado a Lado */
.sorveteria-comparison-box {
    width: 100%;
    margin-bottom: 60px;
    border-bottom: 1px solid var(--color-cinza-areia);
    padding-bottom: 60px;
}

.comparison-title-block {
    text-align: center;
    margin-bottom: 35px;
}

.comparison-title-block h3 {
    font-family: var(--font-titles);
    font-size: 24px;
    color: var(--color-azul-ardosia);
    font-weight: 500;
    margin-bottom: 8px;
    text-transform: uppercase;
    letter-spacing: 1px;
}

.comparison-title-block p {
    font-size: 14px;
    color: var(--color-text-muted);
    font-weight: 300;
}

.comparison-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 30px;
}

.comparison-item {
    position: relative;
    width: 100%;
}

.option-tag {
    position: absolute;
    top: 15px;
    right: 15px;
    background-color: var(--color-taupe-areia);
    color: var(--color-branco-puro);
    font-family: var(--font-titles);
    font-size: 10px;
    font-weight: 600;
    text-transform: uppercase;
    padding: 5px 12px;
    letter-spacing: 1px;
    z-index: 10;
    box-shadow: 0 4px 10px rgba(0, 0, 0, 0.15);
}

/* Projeto Comercial Individual */
.commercial-single-container {
    width: 100%;
    max-width: 800px;
    margin: 0 auto;
}

/* Call to Action Galeria */
.gallery-cta {
    text-align: center;
    border-top: 1px solid var(--color-cinza-areia);
    padding-top: 60px;
    max-width: 600px;
    margin: 60px auto 0 auto;
}

.gallery-cta p {
    font-size: 15px;
    color: var(--color-text-muted);
    margin-bottom: 24px;
}

.btn-whatsapp-gallery {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    background-color: var(--color-azul-ardosia);
    color: var(--color-branco-puro);
    padding: 16px 36px;
    font-family: var(--font-titles);
    font-size: 11px;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 2px;
    transition: var(--transition-smooth);
}

.btn-whatsapp-gallery:hover {
    background-color: var(--color-text-dark);
    transform: translateY(-2px);
}

/* ==========================================================================
   Seções Sobre
   ========================================================================== */
.about-section {
    background-color: var(--color-branco-puro);
    width: 100%;
}

.about-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 60px;
    align-items: center;
    text-align: left;
    width: 100%;
}

.about-image-column {
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    width: 100%;
}

.about-image-frame {
    position: relative;
    border: 1px solid var(--color-cinza-areia);
    padding: 12px;
    background-color: var(--color-branco-puro);
    box-shadow: var(--shadow-medium);
    width: 100%;
}

/* Zoom Animado Scroll na Foto de Perfil Central */
.zoom-scroll-container {
    overflow: hidden;
}

.zoom-scroll-img {
    width: 100%;
    aspect-ratio: 4 / 5;
    object-fit: cover;
    transform: scale(1.12);
    transition: transform 0.25s ease-out;
    will-change: transform;
}

.img-badge {
    position: absolute;
    bottom: 24px;
    right: 24px;
    background-color: var(--color-azul-ardosia);
    color: var(--color-branco-puro);
    padding: 16px 24px;
    display: flex;
    flex-direction: column;
    box-shadow: var(--shadow-medium);
}

.img-badge span {
    font-family: var(--font-titles);
    font-size: 20px;
    font-weight: 500;
    line-height: 1;
}

.img-badge small {
    font-size: 9px;
    text-transform: uppercase;
    letter-spacing: 2px;
    margin-top: 4px;
    color: var(--color-azul-acinzentado-claro);
}

/* Grid Duplo */
.twin-images-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 20px;
    width: 100%;
}

.twin-image-wrapper {
    border: 1px solid var(--color-cinza-areia);
    padding: 8px;
    background-color: var(--color-branco-puro);
    box-shadow: var(--shadow-soft);
    width: 100%;
}

.twin-about-img {
    width: 100%;
    aspect-ratio: 4 / 5;
    object-fit: cover;
}

/* Coluna de Texto */
.about-info-column {
    display: flex;
    flex-direction: column;
    align-items: flex-start;
    width: 100%;
}

.about-title {
    font-family: var(--font-titles);
    font-size: 38px;
    font-weight: 300;
    color: var(--color-text-dark);
    margin-bottom: 8px;
}

.about-subtitle {
    font-family: var(--font-titles);
    font-size: 14px;
    font-weight: 600;
    color: var(--color-azul-ardosia);
    margin-bottom: 20px;
    letter-spacing: 1px;
    line-height: 1.4;
    text-transform: uppercase;
}

.about-line {
    width: 50px;
    height: 1.5px;
    background-color: var(--color-taupe-areia);
    margin-bottom: 25px;
}

.about-text {
    font-size: 15px;
    color: var(--color-text-muted);
    font-weight: 300;
    line-height: 1.8;
    margin-bottom: 20px;
}

/* ==========================================================================
   FAQ Section (Accordion Moderno)
   ========================================================================== */
.faq-section {
    width: 100%;
}

.faq-accordion-container {
    width: 100%;
    max-width: 800px;
    margin: 0 auto;
    text-align: left;
}

.faq-item {
    background-color: var(--color-marfim-claro);
    border: 1px solid var(--color-cinza-areia);
    margin-bottom: 16px;
    transition: var(--transition-smooth);
}

.faq-item[open] {
    background-color: var(--color-branco-puro);
    border-color: var(--color-azul-medio);
    box-shadow: var(--shadow-medium);
}

.faq-question {
    padding: 22px 28px;
    font-family: var(--font-titles);
    font-size: 14px;
    font-weight: 600;
    color: var(--color-azul-ardosia);
    cursor: pointer;
    display: flex;
    justify-content: space-between;
    align-items: center;
    list-style: none;
    text-transform: uppercase;
    letter-spacing: 1px;
}

.faq-question::-webkit-details-marker {
    display: none;
}

.faq-icon {
    font-size: 22px;
    color: var(--color-taupe-areia);
    transition: var(--transition-fast);
    font-weight: 300;
    line-height: 1;
}

.faq-item[open] .faq-icon {
    transform: rotate(45deg);
    color: var(--color-azul-ardosia);
}

.faq-answer {
    padding: 0 28px 22px 28px;
    font-size: 14px;
    color: var(--color-text-muted);
    font-weight: 300;
    line-height: 1.8;
    border-top: 1px solid var(--color-cinza-claro);
    padding-top: 16px;
}

/* ==========================================================================
   Contact Section
   ========================================================================== */
.contact-section {
    background-color: var(--color-marfim-claro);
    border-top: 1px solid var(--color-cinza-areia);
    width: 100%;
}

.contact-box {
    width: 100%;
    max-width: 800px;
    margin: 0 auto;
    display: flex;
    flex-direction: column;
    align-items: center;
}

.contact-title {
    font-family: var(--font-titles);
    font-size: 34px;
    font-weight: 400;
    color: var(--color-azul-ardosia);
    margin-bottom: 12px;
    text-transform: uppercase;
    letter-spacing: 1px;
}

.contact-subtitle {
    font-size: 15px;
    color: var(--color-text-muted);
    font-weight: 300;
    margin-bottom: 40px;
}

.contact-info-list {
    display: flex;
    flex-direction: column;
    gap: 24px;
    width: 100%;
    max-width: 600px;
    text-align: left;
}

.contact-info-item {
    display: flex;
    align-items: center;
    gap: 20px;
    background-color: var(--color-branco-puro);
    padding: 20px 24px;
    border: 1px solid var(--color-cinza-areia);
    box-shadow: var(--shadow-soft);
    transition: var(--transition-smooth);
}

.contact-info-item:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-medium);
    border-color: var(--color-azul-acinzentado-claro);
}

.icon-circle {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 46px;
    height: 46px;
    background-color: var(--color-marfim-claro);
    color: var(--color-azul-ardosia);
    border: 1px solid var(--color-cinza-areia);
    flex-shrink: 0;
    transition: var(--transition-smooth);
}

.contact-info-item:hover .icon-circle {
    background-color: var(--color-azul-ardosia);
    color: var(--color-branco-puro);
    border-color: var(--color-azul-ardosia);
}

.contact-info-text {
    display: flex;
    flex-direction: column;
}

.contact-info-text strong {
    font-family: var(--font-titles);
    font-size: 11px;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 1.5px;
    color: var(--color-text-dark);
    margin-bottom: 4px;
}

.contact-info-text span, .contact-info-text a {
    font-size: 14px;
    color: var(--color-text-muted);
    font-weight: 300;
}

.contact-info-text a:hover {
    color: var(--color-taupe-areia);
}

/* ==========================================================================
   Complete Footer
   ========================================================================== */
.main-footer {
    background-color: var(--color-bg-logo);
    color: var(--color-text-dark);
    border-top: 1px solid var(--color-cinza-areia);
    width: 100%;
}

.footer-grid-container {
    max-width: 1100px;
    margin: 0 auto;
    padding: 80px 24px 50px 24px;
    display: grid;
    grid-template-columns: 4.5fr 3.5fr 4fr;
    gap: 60px;
}

.footer-column h4 {
    font-family: var(--font-titles);
    font-size: 13px;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 2px;
    color: var(--color-azul-ardosia);
    margin-bottom: 25px;
}

.footer-column.brand-desc {
    display: flex;
    flex-direction: column;
    align-items: flex-start;
}

.footer-logo {
    height: 52px;
    width: auto;
    object-fit: contain;
    margin-bottom: 24px;
}

.footer-text-muted {
    font-size: 14px;
    color: var(--color-text-muted);
    font-weight: 300;
    line-height: 1.7;
    margin-bottom: 24px;
}

.footer-socials {
    display: flex;
    gap: 16px;
}

.footer-socials a {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 38px;
    height: 38px;
    background-color: var(--color-cinza-areia);
    color: var(--color-azul-ardosia);
    transition: var(--transition-smooth);
}

.footer-socials a:hover {
    background-color: var(--color-azul-ardosia);
    color: var(--color-branco-puro);
    transform: translateY(-2px);
}

.footer-column.links ul {
    list-style: none;
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 12px;
}

.footer-column.links a {
    font-family: var(--font-titles);
    font-size: 12px;
    font-weight: 500;
    color: var(--color-text-muted);
    text-transform: uppercase;
    letter-spacing: 1px;
}

.footer-column.links a:hover {
    color: var(--color-taupe-areia);
    padding-left: 4px;
}

.footer-column.contact-col p {
    font-size: 14px;
    color: var(--color-text-muted);
    font-weight: 300;
    line-height: 1.7;
}

.footer-bottom-bar {
    max-width: 1100px;
    margin: 0 auto;
    padding: 30px 24px;
    border-top: 1px solid var(--color-cinza-areia);
    display: flex;
    justify-content: space-between;
    align-items: center;
    font-size: 12px;
    color: var(--color-text-muted);
    font-weight: 300;
}

.developer-link {
    font-weight: 600;
    color: var(--color-azul-ardosia);
}

.developer-link:hover {
    color: var(--color-taupe-areia);
}

/* ==========================================================================
   Floating WhatsApp Button
   ========================================================================== */
.whatsapp-floating {
    position: fixed;
    bottom: 30px;
    right: 30px;
    z-index: 99;
    display: flex;
    align-items: center;
}

.whatsapp-icon-wrapper {
    width: 60px;
    height: 60px;
    background-color: #25d366;
    color: var(--color-branco-puro);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: 0 4px 15px rgba(37, 211, 102, 0.4);
    transition: var(--transition-smooth);
    animation: floatAnimation 3.5s ease-in-out infinite;
}

.whatsapp-floating:hover .whatsapp-icon-wrapper {
    transform: scale(1.08) rotate(3deg);
    background-color: #20ba5a;
}

.whatsapp-floating svg {
    width: 30px;
    height: 30px;
}

.whatsapp-tooltip {
    position: absolute;
    right: 75px;
    background-color: var(--color-branco-puro);
    color: var(--color-text-dark);
    padding: 10px 16px;
    font-family: var(--font-titles);
    font-size: 12px;
    font-weight: 500;
    box-shadow: var(--shadow-premium);
    white-space: nowrap;
    border: 1px solid var(--color-cinza-areia);
    opacity: 0;
    transform: translateX(10px);
    pointer-events: none;
    transition: var(--transition-smooth);
}

.whatsapp-floating:hover .whatsapp-tooltip {
    opacity: 1;
    transform: translateX(0);
}

@keyframes floatAnimation {
    0%, 100% {
        transform: translateY(0);
    }
    50% {
        transform: translateY(-6px);
    }
}

/* ==========================================================================
   Custom Lightbox Modal com Carrossel de Miniaturas (Estilo Celular)
   ========================================================================== */
.lightbox {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(18, 22, 27, 0.97);
    backdrop-filter: blur(12px);
    z-index: 2000;
    display: none;
    align-items: center;
    justify-content: center;
    opacity: 0;
    transition: opacity 0.3s ease;
}

.lightbox.active {
    display: flex;
    opacity: 1;
}

.lightbox-content-wrapper {
    position: relative;
    max-width: 90%;
    max-height: 85%;
    display: flex;
    flex-direction: column;
    align-items: center;
}

.lightbox img {
    max-width: 100%;
    max-height: 62vh;
    object-fit: contain;
    border: 1px solid rgba(255,255,255,0.08);
    box-shadow: 0 15px 60px rgba(0,0,0,0.6);
    opacity: 0;
    transform: scale(0.96);
    transition: transform 0.45s cubic-bezier(0.16, 1, 0.3, 1), opacity 0.45s ease;
}

.lightbox.active img {
    opacity: 1;
    transform: scale(1);
}

.lightbox-caption {
    color: var(--color-cinza-areia);
    margin-top: 14px;
    font-family: var(--font-titles);
    font-size: 16px;
    font-weight: 300;
    text-align: center;
    letter-spacing: 0.5px;
}

/* Carrossel de Miniaturas (Estilo Galeria de Celular) */
.lightbox-thumbnails {
    display: flex;
    gap: 8px;
    margin-top: 20px;
    max-width: 100%;
    overflow-x: auto;
    padding: 6px 4px;
    scrollbar-width: none;
}

.lightbox-thumbnails::-webkit-scrollbar {
    display: none;
}

.lightbox-thumb {
    width: 48px;
    height: 34px;
    object-fit: cover;
    cursor: pointer;
    opacity: 0.4;
    border: 1.5px solid transparent;
    transition: var(--transition-fast);
    flex-shrink: 0;
}

.lightbox-thumb:hover, .lightbox-thumb.active {
    opacity: 1;
    border-color: var(--color-branco-puro);
    transform: scale(1.05);
}

.lightbox-close {
    position: absolute;
    top: 30px;
    right: 40px;
    color: rgba(255,255,255,0.5);
    font-size: 40px;
    font-weight: 200;
    transition: var(--transition-fast);
}

.lightbox-close:hover {
    color: var(--color-branco-puro);
    transform: scale(1.1);
}

.lightbox-prev, .lightbox-next {
    position: absolute;
    top: 50%;
    transform: translateY(-50%);
    color: rgba(255,255,255,0.5);
    font-size: 36px;
    padding: 20px;
    transition: var(--transition-fast);
    z-index: 10;
}

.lightbox-prev:hover, .lightbox-next:hover {
    color: var(--color-branco-puro);
    background-color: rgba(255,255,255,0.04);
}

.lightbox-prev {
    left: 20px;
}

.lightbox-next {
    right: 20px;
}

/* ==========================================================================
   Efeitos de Transição Scroll (Fade In)
   ========================================================================== */
.fade-in-element {
    opacity: 0;
    transform: translateY(25px);
    transition: opacity 0.9s cubic-bezier(0.16, 1, 0.3, 1), transform 0.9s cubic-bezier(0.16, 1, 0.3, 1);
    will-change: opacity, transform;
}

.fade-in-visible {
    opacity: 1;
    transform: translateY(0);
}

/* ==========================================================================
   Media Queries (100% Responsivo e Sem Quebras)
   ========================================================================== */

@media (max-width: 1024px) {
    .hero-title {
        font-size: 48px;
    }
    
    .nav-menu {
        display: none;
    }
    
    .btn-whatsapp-header {
        display: none;
    }
    
    .burger-menu {
        display: flex;
    }
    
    .footer-grid-container {
        grid-template-columns: 1fr 1fr;
        gap: 40px;
    }
    
    .footer-column.brand-desc {
        grid-column: span 2;
    }
}

@media (max-width: 768px) {
    .section-container {
        padding: 70px 20px;
    }
    
    .hero-title {
        font-size: 34px;
    }
    
    .hero-subtitle {
        font-size: 14px;
        margin-bottom: 30px;
    }
    
    .btn-whatsapp-hero {
        padding: 14px 28px;
        font-size: 11px;
    }
    
    .gallery-grid {
        grid-template-columns: 1fr;
        gap: 30px;
    }
    
    .gallery-item.full-width {
        grid-column: span 1;
    }
    
    .comparison-grid {
        grid-template-columns: 1fr;
        gap: 30px;
    }
    
    .about-grid {
        grid-template-columns: 1fr;
        gap: 40px;
        width: 100%;
    }
    
    .about-info-column {
        align-items: center;
        text-align: center;
        width: 100%;
    }
    
    .about-line {
        margin-left: auto;
        margin-right: auto;
    }
    
    .twin-images-grid {
        gap: 12px;
        width: 100%;
    }
    
    .section-title {
        font-size: 28px;
    }
    
    .about-title {
        font-size: 30px;
    }
    
    .footer-grid-container {
        grid-template-columns: 1fr;
        gap: 40px;
        padding-top: 60px;
        width: 100%;
    }
    
    .footer-column.brand-desc {
        grid-column: span 1;
        align-items: center;
        text-align: center;
        width: 100%;
    }
    
    .footer-column h4 {
        margin-bottom: 15px;
        text-align: center;
    }
    
    .footer-column.links ul {
        justify-items: center;
        width: 100%;
    }
    
    .footer-column.contact-col {
        text-align: center;
        width: 100%;
    }
    
    .footer-bottom-bar {
        flex-direction: column;
        gap: 15px;
        text-align: center;
        width: 100%;
    }
    
    .lightbox-close {
        top: 20px;
        right: 20px;
        font-size: 32px;
    }
    
    .lightbox-prev, .lightbox-next {
        padding: 8px;
        font-size: 24px;
    }
    
    .lightbox-prev {
        left: 5px;
    }
    
    .lightbox-next {
        right: 5px;
    }
    
    .whatsapp-tooltip {
        display: none;
    }
    
    .lightbox-thumbnails {
        gap: 6px;
    }
    
    .lightbox-thumb {
        width: 40px;
        height: 28px;
    }
}

@media (max-width: 480px) {
    .hero-tag {
        font-size: 9px;
        letter-spacing: 1.5px;
    }
}