/* ================================================================
   BRONDINO REPRESENTAÇÕES — FOLHA DE ESTILOS PRINCIPAL
   Organizado por seções para facilitar manutenção.
   Sumário:
   1. Variáveis / Reset
   2. Tipografia e utilitários gerais
   3. Botões
   4. Cabeçalho / Navegação
   5. Hero (Home)
   6. Sobre
   7. Serviços
   8. Vantagens
   9. Marcas
   10. Contato / Formulário
   11. Rodapé
   12. WhatsApp flutuante / Voltar ao topo
   13. Animações (scroll reveal)
   14. Responsividade (media queries)
================================================================= */


/* ================================================================
   1. VARIÁVEIS GLOBAIS E RESET
================================================================= */
:root {
    /* Paleta institucional */
    --color-primary: #0A2540;        /* Azul-marinho profundo — fundo e seções */
    --color-primary-light: #123A5E;  /* Variação mais clara do azul-marinho */
    --color-primary-dark: #071A2E;   /* Variação mais escura do azul-marinho */
    --color-accent: #C9A227;         /* Dourado/âmbar — destaques e botões */
    --color-accent-light: #E0BC4E;   /* Dourado mais claro (hover) */
    --color-accent-dark: #A6841D;    /* Dourado mais escuro */

    --color-white: #FFFFFF;
    --color-gray-light: #F5F7FA;     /* Cinza-claro para textos sobre fundo escuro */
    --color-text-dark: #1F2937;      /* Texto escuro sobre fundo claro */
    --color-text-muted: #6B7280;     /* Texto secundário/esmaecido */
    --color-border: #E5E9F0;         /* Bordas suaves em seções claras */

    /* Tipografia */
    --font-base: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;

    /* Espaçamentos padronizados */
    --section-padding: 6rem 0;
    --container-width: 1200px;

    /* Bordas arredondadas */
    --radius-sm: 6px;
    --radius-md: 12px;
    --radius-lg: 20px;

    /* Sombras */
    --shadow-sm: 0 2px 8px rgba(10, 37, 64, 0.08);
    --shadow-md: 0 8px 24px rgba(10, 37, 64, 0.12);
    --shadow-lg: 0 16px 40px rgba(10, 37, 64, 0.18);

    /* Transições */
    --transition-fast: 0.2s ease;
    --transition-base: 0.35s ease;
}

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

html {
    scroll-behavior: smooth; /* rolagem suave ao clicar em âncoras */
    scroll-padding-top: 80px; /* compensa a altura do header fixo */
}

body {
    font-family: var(--font-base);
    color: var(--color-text-dark);
    background-color: var(--color-white);
    line-height: 1.6;
    -webkit-font-smoothing: antialiased;
    overflow-x: hidden; /* evita rolagem horizontal indesejada */
}

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

a {
    text-decoration: none;
    color: inherit;
}

ul {
    list-style: none;
}

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

input,
textarea {
    font-family: inherit;
    font-size: 1rem;
}

/* Container central padrão */
.container {
    width: 100%;
    max-width: var(--container-width);
    margin: 0 auto;
    padding: 0 1.5rem;
}


/* ================================================================
   2. TIPOGRAFIA E UTILITÁRIOS GERAIS
================================================================= */
h1, h2, h3, h4 {
    font-weight: 700;
    line-height: 1.2;
    color: var(--color-primary);
}

/* Cabeçalho reutilizável de cada seção */
.section-header {
    text-align: center;
    max-width: 680px;
    margin: 0 auto 3.5rem;
}

.section-header__eyebrow {
    display: inline-block;
    color: var(--color-accent-dark);
    font-weight: 600;
    letter-spacing: 0.08em;
    text-transform: uppercase;
    font-size: 0.85rem;
    margin-bottom: 0.75rem;
}

.section-header__title {
    font-size: clamp(1.75rem, 3vw, 2.5rem);
    margin-bottom: 1rem;
}

.section-header__subtitle {
    color: var(--color-text-muted);
    font-size: 1.05rem;
}

/* Variante clara: usada sobre fundos escuros (azul-marinho) */
.section-header--light .section-header__title,
.section-header--light .section-header__eyebrow {
    color: var(--color-white);
}
.section-header--light .section-header__eyebrow {
    color: var(--color-accent-light);
}
.section-header--light .section-header__subtitle {
    color: rgba(245, 247, 250, 0.75);
}


/* ================================================================
   3. BOTÕES
================================================================= */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    padding: 0.85rem 1.75rem;
    border-radius: var(--radius-sm);
    font-weight: 600;
    font-size: 0.95rem;
    transition: transform var(--transition-fast), box-shadow var(--transition-fast), background-color var(--transition-fast), color var(--transition-fast);
    white-space: nowrap;
}

/* Botão primário: dourado, usado para ações principais (CTA) */
.btn--primary {
    background-color: var(--color-accent);
    color: var(--color-primary);
}
.btn--primary:hover {
    background-color: var(--color-accent-light);
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
}

/* Botão outline: usado sobre fundos escuros, com contorno claro */
.btn--outline {
    background-color: transparent;
    color: var(--color-white);
    border: 2px solid rgba(255, 255, 255, 0.4);
}
.btn--outline:hover {
    background-color: rgba(255, 255, 255, 0.1);
    border-color: var(--color-white);
    transform: translateY(-2px);
}

.btn--lg {
    padding: 1rem 2rem;
    font-size: 1rem;
}

.btn--full {
    width: 100%;
}

.btn--nav {
    padding: 0.65rem 1.5rem;
}


/* ================================================================
   4. CABEÇALHO / NAVEGAÇÃO
================================================================= */
.header {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    z-index: 1000;
    background-color: transparent;
    padding: 1.25rem 0;
    transition: background-color var(--transition-base), padding var(--transition-base), box-shadow var(--transition-base);
}

/* Estado "encolhido" aplicado via JavaScript ao rolar a página */
.header.header--scrolled {
    background-color: var(--color-primary);
    padding: 0.85rem 0;
    box-shadow: var(--shadow-md);
}

.header__container {
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.header__logo {
    display: flex;
    align-items: center;
    gap: 0.6rem;
    font-size: 1.25rem;
    font-weight: 700;
    color: var(--color-white);
}

.header__logo-icon {
    color: var(--color-accent);
    font-size: 1.4rem;
}

.header__logo-highlight {
    color: var(--color-accent);
    font-weight: 400;
}

.nav {
    display: flex;
    align-items: center;
    gap: 2.5rem;
}

.nav__list {
    display: flex;
    gap: 2rem;
}

.nav__link {
    color: var(--color-gray-light);
    font-weight: 500;
    font-size: 0.95rem;
    position: relative;
    padding-bottom: 4px;
    transition: color var(--transition-fast);
}

/* Sublinhado animado ao passar o mouse */
.nav__link::after {
    content: '';
    position: absolute;
    left: 0;
    bottom: 0;
    width: 0;
    height: 2px;
    background-color: var(--color-accent);
    transition: width var(--transition-fast);
}

.nav__link:hover {
    color: var(--color-white);
}
.nav__link:hover::after {
    width: 100%;
}

/* Botão hambúrguer — visível apenas em telas menores */
.hamburger {
    display: none;
    flex-direction: column;
    gap: 5px;
    z-index: 1100;
}

.hamburger__bar {
    width: 26px;
    height: 2px;
    background-color: var(--color-white);
    border-radius: 2px;
    transition: transform var(--transition-fast), opacity var(--transition-fast);
}

/* Estado "aberto" do hambúrguer, transformado em X via JavaScript (classe .is-active) */
.hamburger.is-active .hamburger__bar:nth-child(1) {
    transform: translateY(7px) rotate(45deg);
}
.hamburger.is-active .hamburger__bar:nth-child(2) {
    opacity: 0;
}
.hamburger.is-active .hamburger__bar:nth-child(3) {
    transform: translateY(-7px) rotate(-45deg);
}


/* ================================================================
   5. HERO (HOME)
================================================================= */
.hero {
    position: relative;
    min-height: 100vh;
    display: flex;
    align-items: center;
    background-color: var(--color-primary);
    overflow: hidden;
    padding-top: 80px;
}

/* Camada de gradiente decorativo de fundo */
.hero__bg {
    position: absolute;
    inset: 0;
    background:
        radial-gradient(circle at 85% 20%, rgba(201, 162, 39, 0.18), transparent 45%),
        radial-gradient(circle at 10% 80%, rgba(201, 162, 39, 0.10), transparent 40%),
        linear-gradient(160deg, var(--color-primary) 0%, var(--color-primary-dark) 100%);
    z-index: 0;
}

.hero__container {
    position: relative;
    z-index: 1;
}

.hero__content {
    max-width: 760px;
}

.hero__eyebrow {
    color: var(--color-accent-light);
    font-weight: 600;
    letter-spacing: 0.08em;
    text-transform: uppercase;
    font-size: 0.85rem;
    margin-bottom: 1.25rem;
}

.hero__title {
    font-size: clamp(2.25rem, 5vw, 3.75rem);
    color: var(--color-white);
    margin-bottom: 1.5rem;
}

.hero__subtitle {
    font-size: 1.15rem;
    color: rgba(245, 247, 250, 0.8);
    margin-bottom: 2.5rem;
    max-width: 620px;
}

.hero__actions {
    display: flex;
    flex-wrap: wrap;
    gap: 1rem;
    margin-bottom: 4rem;
}

.hero__stats {
    display: flex;
    flex-wrap: wrap;
    gap: 2.5rem;
    padding-top: 2.5rem;
    border-top: 1px solid rgba(255, 255, 255, 0.15);
}

.hero__stat {
    display: flex;
    flex-direction: column;
}

.hero__stat-number {
    font-size: 2rem;
    font-weight: 800;
    color: var(--color-accent);
}

.hero__stat-label {
    color: rgba(245, 247, 250, 0.7);
    font-size: 0.9rem;
}

/* Indicador de rolagem no rodapé do hero */
.hero__scroll-indicator {
    position: absolute;
    bottom: 2rem;
    left: 50%;
    transform: translateX(-50%);
    color: var(--color-white);
    font-size: 1.25rem;
    opacity: 0.7;
    z-index: 1;
    animation: bounce 2.2s infinite;
}

@keyframes bounce {
    0%, 100% { transform: translate(-50%, 0); }
    50% { transform: translate(-50%, 8px); }
}


/* ================================================================
   6. SOBRE
================================================================= */
.about {
    padding: var(--section-padding);
    background-color: var(--color-white);
}

.about__grid {
    display: grid;
    grid-template-columns: 1.4fr 1fr;
    gap: 4rem;
    align-items: start;
}

.about__text p {
    color: var(--color-text-muted);
    margin-bottom: 1.25rem;
    font-size: 1.02rem;
}

.about__text p strong {
    color: var(--color-primary);
}

.about__highlights {
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
    margin-top: 2rem;
}

.about__highlight {
    display: flex;
    gap: 1rem;
    align-items: flex-start;
}

.about__highlight i {
    color: var(--color-accent-dark);
    font-size: 1.4rem;
    margin-top: 0.2rem;
    flex-shrink: 0;
}

.about__highlight h3 {
    font-size: 1.05rem;
    margin-bottom: 0.3rem;
}

.about__highlight p {
    color: var(--color-text-muted);
    font-size: 0.95rem;
}

.about__visual {
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
    padding-top: 1.5rem;
}

.about__card {
    background-color: var(--color-gray-light);
    border-radius: var(--radius-md);
    padding: 2rem;
    box-shadow: var(--shadow-sm);
    transition: transform var(--transition-base);
}

.about__card:hover {
    transform: translateY(-6px);
}

.about__card--offset {
    margin-left: 2rem;
}

.about__card i {
    font-size: 1.75rem;
    color: var(--color-accent-dark);
    margin-bottom: 0.75rem;
}

.about__card h3 {
    font-size: 1.1rem;
    margin-bottom: 0.4rem;
}

.about__card p {
    color: var(--color-text-muted);
    font-size: 0.9rem;
}


/* ================================================================
   7. SERVIÇOS
================================================================= */
.services {
    padding: var(--section-padding);
    background-color: var(--color-gray-light);
}

.services__grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 2rem;
}

.service-card {
    background-color: var(--color-white);
    border-radius: var(--radius-md);
    padding: 2.5rem 2rem;
    text-align: left;
    box-shadow: var(--shadow-sm);
    transition: transform var(--transition-base), box-shadow var(--transition-base);
    border-top: 3px solid transparent;
}

.service-card:hover {
    transform: translateY(-8px);
    box-shadow: var(--shadow-lg);
    border-top-color: var(--color-accent);
}

.service-card__icon {
    width: 60px;
    height: 60px;
    display: flex;
    align-items: center;
    justify-content: center;
    background-color: rgba(10, 37, 64, 0.06);
    border-radius: var(--radius-md);
    margin-bottom: 1.5rem;
    font-size: 1.5rem;
    color: var(--color-primary);
    transition: background-color var(--transition-base), color var(--transition-base);
}

.service-card:hover .service-card__icon {
    background-color: var(--color-accent);
    color: var(--color-primary);
}

.service-card__title {
    font-size: 1.2rem;
    margin-bottom: 0.75rem;
}

.service-card__text {
    color: var(--color-text-muted);
    font-size: 0.95rem;
}


/* ================================================================
   8. VANTAGENS / POR QUE NOS ESCOLHER
================================================================= */
.advantages {
    padding: var(--section-padding);
    background-color: var(--color-primary);
    background-image: linear-gradient(160deg, var(--color-primary) 0%, var(--color-primary-dark) 100%);
}

.advantages__grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 2.5rem;
}

.advantage {
    display: flex;
    flex-direction: column;
    gap: 0.85rem;
}

.advantage__icon {
    width: 54px;
    height: 54px;
    display: flex;
    align-items: center;
    justify-content: center;
    background-color: rgba(201, 162, 39, 0.15);
    border: 1px solid rgba(201, 162, 39, 0.35);
    border-radius: var(--radius-md);
    color: var(--color-accent);
    font-size: 1.35rem;
}

.advantage h3 {
    color: var(--color-white);
    font-size: 1.1rem;
}

.advantage p {
    color: rgba(245, 247, 250, 0.7);
    font-size: 0.92rem;
}


/* ================================================================
   9. MARCAS REPRESENTADAS
================================================================= */
.brands {
    padding: var(--section-padding);
    background-color: var(--color-white);
}

.brands__grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(140px, 1fr));
    gap: 1.5rem;
    align-items: center;
}

.brand {
    display: flex;
    align-items: center;
    justify-content: center;
}

/* Placeholder de logotipo — substitua por <img> real conforme comentário no HTML */
.brand__placeholder {
    width: 100%;
    height: 90px;
    display: flex;
    align-items: center;
    justify-content: center;
    background-color: var(--color-gray-light);
    border: 1px dashed var(--color-border);
    border-radius: var(--radius-md);
    color: var(--color-text-muted);
    font-weight: 600;
    font-size: 0.9rem;
    filter: grayscale(100%);
    opacity: 0.75;
    transition: filter var(--transition-base), opacity var(--transition-base), transform var(--transition-base);
}

.brand__placeholder:hover {
    filter: grayscale(0%);
    opacity: 1;
    transform: scale(1.04);
}


/* ================================================================
   10. CONTATO / FORMULÁRIO
================================================================= */
.contact {
    padding: var(--section-padding);
    background-color: var(--color-primary);
    background-image: linear-gradient(160deg, var(--color-primary) 0%, var(--color-primary-dark) 100%);
}

.contact__grid {
    display: grid;
    grid-template-columns: 0.9fr 1.1fr;
    gap: 3.5rem;
}

.contact__info {
    display: flex;
    flex-direction: column;
    gap: 1.75rem;
}

.contact__info-item {
    display: flex;
    gap: 1.1rem;
    align-items: flex-start;
}

.contact__info-item i {
    color: var(--color-accent);
    font-size: 1.3rem;
    width: 24px;
    margin-top: 0.25rem;
    flex-shrink: 0;
}

.contact__info-item h3 {
    color: var(--color-white);
    font-size: 1rem;
    margin-bottom: 0.3rem;
}

.contact__info-item p,
.contact__info-item a {
    color: rgba(245, 247, 250, 0.75);
    font-size: 0.95rem;
}

.contact__info-item a:hover {
    color: var(--color-accent-light);
}

.contact__social {
    display: flex;
    gap: 0.85rem;
    margin-top: 1rem;
}

.social-icon {
    width: 42px;
    height: 42px;
    display: flex;
    align-items: center;
    justify-content: center;
    background-color: rgba(255, 255, 255, 0.08);
    border-radius: 50%;
    color: var(--color-white);
    transition: background-color var(--transition-fast), transform var(--transition-fast);
}

.social-icon:hover {
    background-color: var(--color-accent);
    color: var(--color-primary);
    transform: translateY(-3px);
}

/* Formulário */
.contact__form-wrapper {
    background-color: var(--color-white);
    border-radius: var(--radius-lg);
    padding: 2.5rem;
    box-shadow: var(--shadow-lg);
}

.contact-form {
    display: flex;
    flex-direction: column;
    gap: 1.25rem;
}

.form-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 1.25rem;
}

.form-group {
    display: flex;
    flex-direction: column;
    gap: 0.4rem;
}

.form-group label {
    font-size: 0.9rem;
    font-weight: 600;
    color: var(--color-primary);
}

.form-group input,
.form-group textarea {
    padding: 0.8rem 1rem;
    border: 1.5px solid var(--color-border);
    border-radius: var(--radius-sm);
    color: var(--color-text-dark);
    transition: border-color var(--transition-fast), box-shadow var(--transition-fast);
    resize: vertical;
}

.form-group input:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--color-accent);
    box-shadow: 0 0 0 3px rgba(201, 162, 39, 0.15);
}

/* Estado de erro de validação (classe adicionada via JavaScript) */
.form-group.has-error input,
.form-group.has-error textarea {
    border-color: #D64545;
}

.form-error {
    color: #D64545;
    font-size: 0.8rem;
    min-height: 1rem;
}

/* Área de feedback (sucesso/erro) do formulário */
.form-feedback {
    padding: 0.9rem 1rem;
    border-radius: var(--radius-sm);
    font-size: 0.9rem;
    text-align: center;
    display: none; /* exibido via JavaScript quando há mensagem */
}

.form-feedback.is-success {
    display: block;
    background-color: rgba(46, 160, 67, 0.1);
    color: #1E7B31;
    border: 1px solid rgba(46, 160, 67, 0.3);
}

.form-feedback.is-error {
    display: block;
    background-color: rgba(214, 69, 69, 0.1);
    color: #B23A3A;
    border: 1px solid rgba(214, 69, 69, 0.3);
}

/* Estado de carregamento do botão de envio */
.btn.is-loading {
    opacity: 0.75;
    pointer-events: none;
}


/* ================================================================
   11. RODAPÉ
================================================================= */
.footer {
    background-color: var(--color-primary-dark);
    padding: 4.5rem 0 0;
}

.footer__grid {
    display: grid;
    grid-template-columns: 1.4fr 1fr 1fr 1.2fr;
    gap: 3rem;
    padding-bottom: 3rem;
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

.footer__logo {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-size: 1.2rem;
    font-weight: 700;
    color: var(--color-white);
    margin-bottom: 1rem;
}

.footer__logo i {
    color: var(--color-accent);
}

.footer__logo span {
    color: var(--color-accent);
    font-weight: 400;
}

.footer__about {
    color: rgba(245, 247, 250, 0.6);
    font-size: 0.9rem;
    margin-bottom: 1.5rem;
    max-width: 300px;
}

.footer__social {
    display: flex;
    gap: 0.75rem;
}

.footer__title {
    color: var(--color-white);
    font-size: 1rem;
    margin-bottom: 1.25rem;
}

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

.footer__links a,
.footer__links li {
    color: rgba(245, 247, 250, 0.6);
    font-size: 0.9rem;
    display: flex;
    align-items: center;
    gap: 0.5rem;
    transition: color var(--transition-fast);
}

.footer__links a:hover {
    color: var(--color-accent-light);
}

.footer__bottom {
    display: flex;
    justify-content: space-between;
    flex-wrap: wrap;
    gap: 0.5rem;
    padding: 1.75rem 0;
    color: rgba(245, 247, 250, 0.5);
    font-size: 0.85rem;
}


/* ================================================================
   12. WHATSAPP FLUTUANTE / VOLTAR AO TOPO
================================================================= */
.whatsapp-float {
    position: fixed;
    bottom: 2rem;
    right: 2rem;
    width: 60px;
    height: 60px;
    background-color: #25D366;
    color: var(--color-white);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.9rem;
    box-shadow: var(--shadow-lg);
    z-index: 999;
    transition: transform var(--transition-fast);
    animation: pulse 2.5s infinite;
}

.whatsapp-float:hover {
    transform: scale(1.08);
}

@keyframes pulse {
    0% { box-shadow: 0 0 0 0 rgba(37, 211, 102, 0.5), var(--shadow-lg); }
    70% { box-shadow: 0 0 0 14px rgba(37, 211, 102, 0), var(--shadow-lg); }
    100% { box-shadow: 0 0 0 0 rgba(37, 211, 102, 0), var(--shadow-lg); }
}

/* Botão de voltar ao topo — some/aparece via JavaScript com a classe .is-visible */
.back-to-top {
    position: fixed;
    bottom: 2rem;
    right: 5.5rem;
    width: 44px;
    height: 44px;
    background-color: var(--color-primary);
    color: var(--color-white);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1rem;
    box-shadow: var(--shadow-md);
    z-index: 999;
    opacity: 0;
    visibility: hidden;
    transform: translateY(10px);
    transition: opacity var(--transition-fast), transform var(--transition-fast), visibility var(--transition-fast);
}

.back-to-top.is-visible {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
}

.back-to-top:hover {
    background-color: var(--color-accent);
    color: var(--color-primary);
}


/* ================================================================
   13. ANIMAÇÕES — SCROLL REVEAL
   Elementos com a classe .reveal começam invisíveis/deslocados e
   ganham a classe .is-visible via JavaScript (IntersectionObserver)
   quando entram na viewport.
================================================================= */
.reveal {
    opacity: 0;
    transform: translateY(30px);
    transition: opacity 0.7s ease, transform 0.7s ease;
}

.reveal.is-visible {
    opacity: 1;
    transform: translateY(0);
}


/* ================================================================
   14. RESPONSIVIDADE (MEDIA QUERIES)
================================================================= */

/* Tablets grandes / telas médias */
@media (max-width: 1024px) {
    .about__grid,
    .contact__grid {
        grid-template-columns: 1fr;
        gap: 3rem;
    }

    .about__visual {
        flex-direction: row;
        padding-top: 0;
    }

    .about__card--offset {
        margin-left: 0;
        margin-top: 2rem;
    }

    .footer__grid {
        grid-template-columns: 1fr 1fr;
    }
}

/* Tablets / navegação mobile */
@media (max-width: 860px) {
    .nav {
        position: fixed;
        top: 0;
        right: 0;
        height: 100vh;
        width: min(320px, 80%);
        background-color: var(--color-primary);
        flex-direction: column;
        align-items: flex-start;
        justify-content: center;
        gap: 2.5rem;
        padding: 2rem;
        transform: translateX(100%);
        transition: transform var(--transition-base);
        box-shadow: var(--shadow-lg);
    }

    .nav.is-open {
        transform: translateX(0);
    }

    .nav__list {
        flex-direction: column;
        gap: 1.5rem;
    }

    .nav__link {
        font-size: 1.1rem;
    }

    .hamburger {
        display: flex;
    }

    .hero__stats {
        gap: 1.5rem;
    }

    .about__visual {
        flex-direction: column;
    }
}

/* Smartphones */
@media (max-width: 600px) {
    :root {
        --section-padding: 4rem 0;
    }

    .hero {
        text-align: left;
    }

    .hero__actions {
        flex-direction: column;
        width: 100%;
    }

    .hero__actions .btn {
        width: 100%;
    }

    .form-row {
        grid-template-columns: 1fr;
    }

    .contact__form-wrapper {
        padding: 1.5rem;
    }

    .footer__grid {
        grid-template-columns: 1fr;
        gap: 2.5rem;
    }

    .footer__bottom {
        flex-direction: column;
        text-align: center;
    }

    .whatsapp-float {
        width: 54px;
        height: 54px;
        font-size: 1.6rem;
        bottom: 1.25rem;
        right: 1.25rem;
    }

    .back-to-top {
        width: 40px;
        height: 40px;
        bottom: 1.25rem;
        right: 4.75rem;
    }

    .services__grid,
    .advantages__grid {
        grid-template-columns: 1fr;
    }
}