/* ========================================
   Zimix Indústria Mecânica - CSS
   Paleta Verde Metálico do Logo
   ======================================== */

/* === VARIÁVEIS DE COR === */
:root {
    /* Cores do logotipo Zimix (verde metálico) */
    --cor-primaria: #3F6F50;        /* Verde médio metálico */
    --cor-primaria-escura: #2a4a36; /* Verde escuro para hover */
    --cor-secundaria: #8FB29A;      /* Verde claro reflexos */
    --cor-destaque: #EAF2EC;        /* Branco esverdeado */
    
    /* Backgrounds */
    --bg-escuro: #020701;           /* Verde quase preto */
    --bg-escuro-alt: #0B1B12;       /* Verde muito escuro */
    --bg-claro: #ffffff;
    
    /* Textos */
    --texto-principal: #EAF2EC;     /* Texto claro no escuro */
    --texto-secundario: #8FB29A;    /* Texto secundário */
    --texto-escuro: #0A0A0A;        /* Texto escuro */
    
    /* Gradientes metálicos */
    --gradiente-metalico: linear-gradient(135deg, #3F6F50 0%, #8FB29A 50%, #EAF2EC 100%);
    --gradiente-fundo: linear-gradient(180deg, #020701 0%, #0B1B12 100%);
    
    /* Sombras */
    --sombra-suave: 0 2px 10px rgba(2, 7, 1, 0.3);
    --sombra-media: 0 4px 20px rgba(2, 7, 1, 0.4);
    --sombra-forte: 0 8px 30px rgba(2, 7, 1, 0.5);
    
    /* Transições */
    --transicao-rapida: 0.3s ease;
    --transicao-media: 0.5s ease;
}

/* === RESET & BASE === */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
    scroll-padding-top: 150px;
}

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, sans-serif;
    line-height: 1.6;
    color: var(--texto-escuro);
    background: var(--bg-claro);
    overflow-x: hidden;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

/* === TIPOGRAFIA === */
h1, h2, h3, h4, h5, h6 {
    font-weight: 700;
    line-height: 1.2;
    margin-bottom: 1rem;
}

h1 {
    font-size: 3rem;
}

h2 {
    font-size: 2.5rem;
}

h3 {
    font-size: 1.75rem;
}

a {
    color: var(--cor-primaria);
    text-decoration: none;
    transition: var(--transicao-rapida);
}

a:hover {
    color: var(--cor-secundaria);
}

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

/* === BOTÕES === */
.btn {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.875rem 1.75rem;
    font-size: 1rem;
    font-weight: 600;
    border-radius: 8px;
    border: none;
    cursor: pointer;
    transition: var(--transicao-rapida);
    text-align: center;
    white-space: nowrap;
}

.btn-primary {
    background: var(--cor-primaria);
    color: var(--cor-destaque);
    box-shadow: var(--sombra-suave);
}

.btn-primary:hover {
    background: var(--cor-primaria-escura);
    transform: translateY(-2px);
    box-shadow: var(--sombra-media);
    color: var(--cor-destaque);
}

.btn-secondary {
    background: transparent;
    color: var(--cor-destaque);
    border: 2px solid var(--cor-secundaria);
}

.btn-secondary:hover {
    background: var(--cor-primaria);
    border-color: var(--cor-primaria);
    color: var(--cor-destaque);
}

.btn-lg {
    padding: 1.125rem 2.25rem;
    font-size: 1.125rem;
}

/* === HEADER === */
.header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    background: var(--bg-escuro);
    box-shadow: var(--sombra-suave);
    z-index: 1000;
    transition: var(--transicao-media);
}

.header.scrolled {
    background: var(--bg-escuro-alt);
    box-shadow: var(--sombra-media);
}

.header-content {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 1rem 0;
}

.logo img {
    height: 60px;
    width: auto;
    transition: var(--transicao-rapida);
}

.logo img:hover {
    transform: scale(1.05);
}

.nav-list {
    display: flex;
    list-style: none;
    gap: 2rem;
    align-items: center;
}

.nav-link {
    color: var(--texto-principal);
    font-weight: 500;
    font-size: 0.95rem;
    position: relative;
    padding: 0.5rem 0;
}

.nav-link::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--gradiente-metalico);
    transition: var(--transicao-rapida);
}

.nav-link:hover {
    color: var(--cor-secundaria);
}

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

.btn-header {
    font-size: 0.9rem;
    padding: 0.75rem 1.5rem;
}

.mobile-menu-toggle {
    display: none;
    flex-direction: column;
    gap: 5px;
    background: transparent;
    border: none;
    cursor: pointer;
    padding: 0.5rem;
}

.mobile-menu-toggle span {
    display: block;
    width: 25px;
    height: 3px;
    background: var(--texto-principal);
    transition: var(--transicao-rapida);
    border-radius: 2px;
}

/* === SEÇÕES GERAIS === */
section {
    scroll-margin-top: 130px;
}

.section {
    padding: 5rem 0;
}

.section-dark {
    background: linear-gradient(135deg, #0B1B12 0%, #020701 100%);
    color: var(--texto-principal);
}

/* === HERO SECTION === */
.hero {
    position: relative;
    min-height: 90vh;
    display: flex;
    align-items: center;
    background: var(--gradiente-fundo);
    color: var(--texto-principal);
    padding: 8rem 0 4rem;
    overflow: hidden;
}

.hero::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: 
        radial-gradient(circle at 20% 50%, rgba(63, 111, 80, 0.15) 0%, transparent 50%),
        radial-gradient(circle at 80% 80%, rgba(143, 178, 154, 0.1) 0%, transparent 50%);
    pointer-events: none;
}

.hero-overlay {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(135deg, rgba(2, 7, 1, 0.8) 0%, rgba(11, 27, 18, 0.9) 100%);
}

.hero-content {
    position: relative;
    z-index: 2;
    max-width: 900px;
    text-align: center;
    margin: 0 auto;
}

.hero-title {
    font-size: 3.5rem;
    font-weight: 800;
    margin-bottom: 1.5rem;
    background: var(--gradiente-metalico);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    line-height: 1.2;
    text-shadow: 0 2px 10px rgba(0, 0, 0, 0.3);
}

.hero-subtitle {
    font-size: 1.25rem;
    color: var(--texto-secundario);
    margin-bottom: 2.5rem;
    line-height: 1.8;
}

.hero-cta {
    display: flex;
    gap: 1.5rem;
    justify-content: center;
    flex-wrap: wrap;
}

/* === SECTIONS === */
.section {
    padding: 5rem 0;
}

.section-dark {
    background: var(--gradiente-fundo);
    color: var(--texto-principal);
}

.section-header {
    text-align: center;
    margin-bottom: 4rem;
}

.section-title {
    font-size: 2.75rem;
    font-weight: 800;
    margin-bottom: 1rem;
    background: var(--gradiente-metalico);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.section-dark .section-title {
    background: linear-gradient(135deg, #8FB29A 0%, #EAF2EC 50%, #ffffff 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.section-subtitle {
    font-size: 1.125rem;
    color: var(--texto-secundario);
    max-width: 700px;
    margin: 0 auto;
}

/* === SERVIÇOS === */
.servicos-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 2rem;
}

.servico-card {
    background: #ffffff;
    border-radius: 12px;
    padding: 2.5rem 2rem;
    text-align: center;
    transition: var(--transicao-media);
    box-shadow: var(--sombra-suave);
    border: 2px solid transparent;
}

.servico-card:hover {
    transform: translateY(-10px);
    box-shadow: var(--sombra-forte);
    border-color: var(--cor-primaria);
}

.servico-icon {
    width: 80px;
    height: 80px;
    margin: 0 auto 1.5rem;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--gradiente-metalico);
    border-radius: 50%;
    font-size: 2rem;
    color: #ffffff;
    box-shadow: var(--sombra-media);
}

.servico-card h3 {
    color: var(--cor-primaria);
    font-size: 1.5rem;
    margin-bottom: 1rem;
}

.servico-card p {
    color: #555;
    line-height: 1.7;
}

/* === HISTÓRIA === */
.historia {
    background: linear-gradient(135deg, #0B1B12 0%, #020701 100%);
    padding: 5rem 0;
    position: relative;
    overflow: hidden;
}

.historia::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: radial-gradient(circle at 20% 50%, rgba(63, 111, 80, 0.1) 0%, transparent 50%),
                radial-gradient(circle at 80% 50%, rgba(143, 178, 154, 0.1) 0%, transparent 50%);
    pointer-events: none;
}

.historia-content {
    position: relative;
    z-index: 1;
}

.historia-intro {
    text-align: center;
    max-width: 900px;
    margin: 0 auto 4rem;
    padding: 2rem;
    background: rgba(63, 111, 80, 0.1);
    border-radius: 12px;
    border: 2px solid rgba(143, 178, 154, 0.3);
}

.historia-lead {
    font-size: 1.2rem;
    line-height: 1.8;
    color: var(--cor-destaque);
    font-weight: 400;
}

.historia-timeline {
    max-width: 1000px;
    margin: 0 auto;
    position: relative;
}

.historia-timeline::before {
    content: '';
    position: absolute;
    left: 30px;
    top: 0;
    bottom: 0;
    width: 3px;
    background: var(--gradiente-metalico);
}

.timeline-item {
    display: flex;
    gap: 2rem;
    margin-bottom: 3rem;
    position: relative;
}

.timeline-icon {
    flex-shrink: 0;
    width: 60px;
    height: 60px;
    background: var(--gradiente-metalico);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
    color: #ffffff;
    box-shadow: var(--sombra-media);
    position: relative;
    z-index: 2;
}

.timeline-content {
    flex: 1;
    background: rgba(63, 111, 80, 0.1);
    padding: 2rem;
    border-radius: 12px;
    border-left: 4px solid var(--cor-primaria);
    transition: var(--transicao-rapida);
}

.timeline-content:hover {
    background: rgba(63, 111, 80, 0.15);
    transform: translateX(5px);
}

.timeline-content h3 {
    color: var(--cor-destaque);
    font-size: 1.5rem;
    margin-bottom: 1rem;
    font-weight: 700;
}

.timeline-content p {
    color: var(--texto-secundario);
    line-height: 1.8;
    margin-bottom: 1rem;
}

.timeline-content p:last-child {
    margin-bottom: 0;
}

.timeline-content strong {
    color: var(--cor-secundaria);
    font-weight: 700;
}

.historia-conclusao {
    font-style: italic;
    color: var(--cor-destaque) !important;
    border-top: 2px solid rgba(143, 178, 154, 0.3);
    padding-top: 1rem;
    margin-top: 1rem;
}

.historia-clientes {
    text-align: center;
    margin-top: 4rem;
    padding: 3rem;
    background: rgba(63, 111, 80, 0.1);
    border-radius: 12px;
    border: 2px solid rgba(143, 178, 154, 0.3);
}

.historia-clientes h3 {
    color: var(--cor-destaque);
    font-size: 1.8rem;
    margin-bottom: 2rem;
}

.clientes-logos {
    display: flex;
    justify-content: center;
    gap: 4rem;
    margin-bottom: 2rem;
    flex-wrap: wrap;
}

.cliente-item {
    text-align: center;
}

.cliente-item i {
    font-size: 3rem;
    color: var(--cor-secundaria);
    margin-bottom: 1rem;
    display: block;
}

.cliente-item p {
    color: var(--cor-destaque);
    font-size: 1.2rem;
    font-weight: 700;
}

.historia-note {
    color: var(--texto-secundario);
    font-size: 0.95rem;
    font-style: italic;
    margin-top: 1.5rem;
}

/* === CAPACIDADE === */
.capacidade-list {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: 2rem;
}

.capacidade-item {
    display: flex;
    gap: 1.5rem;
    padding: 1.5rem;
    background: rgba(63, 111, 80, 0.1);
    border-radius: 10px;
    border-left: 4px solid var(--cor-primaria);
    transition: var(--transicao-rapida);
}

.capacidade-item:hover {
    background: rgba(63, 111, 80, 0.2);
    transform: translateX(5px);
}

.capacidade-icon {
    font-size: 2rem;
    color: var(--cor-secundaria);
    flex-shrink: 0;
}

.capacidade-text h3 {
    color: var(--cor-destaque);
    font-size: 1.25rem;
    margin-bottom: 0.5rem;
}

.capacidade-text p {
    color: var(--texto-secundario);
    line-height: 1.6;
}

/* === NOSSA ESTRUTURA === */
.estrutura-section {
    background: linear-gradient(135deg, #0B1B12 0%, #020701 100%);
    padding: 5rem 0;
    position: relative;
    overflow: hidden;
}

.estrutura-section::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: radial-gradient(circle at 20% 50%, rgba(63, 111, 80, 0.1) 0%, transparent 50%),
                radial-gradient(circle at 80% 50%, rgba(143, 178, 154, 0.1) 0%, transparent 50%);
    pointer-events: none;
}

.estrutura-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: 2rem;
    margin-bottom: 3rem;
    position: relative;
    z-index: 1;
}

.estrutura-item {
    border-radius: 12px;
    overflow: hidden;
    box-shadow: var(--sombra-suave);
    transition: var(--transicao-media);
    background: rgba(255, 255, 255, 0.05);
}

.estrutura-item:hover {
    transform: translateY(-8px) scale(1.02);
    box-shadow: var(--sombra-forte);
}

.estrutura-image {
    position: relative;
    overflow: hidden;
    height: 280px;
}

.estrutura-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.5s ease;
}

.estrutura-item:hover .estrutura-image img {
    transform: scale(1.1);
}

.estrutura-overlay {
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    background: linear-gradient(to top, rgba(2, 7, 1, 0.95) 0%, rgba(2, 7, 1, 0.7) 70%, transparent 100%);
    padding: 2rem 1.5rem 1.5rem;
    transform: translateY(0);
    transition: var(--transicao-rapida);
}

.estrutura-item:hover .estrutura-overlay {
    background: linear-gradient(to top, rgba(63, 111, 80, 0.95) 0%, rgba(63, 111, 80, 0.7) 70%, transparent 100%);
}

.estrutura-overlay h3 {
    color: #ffffff;
    font-size: 1.3rem;
    margin-bottom: 0.5rem;
    font-weight: 700;
}

.estrutura-overlay p {
    color: var(--cor-destaque-claro);
    font-size: 0.95rem;
    line-height: 1.5;
}

.estrutura-cta {
    text-align: center;
    padding: 3rem 1rem;
    background: rgba(63, 111, 80, 0.1);
    border-radius: 12px;
    border: 2px solid rgba(143, 178, 154, 0.3);
    position: relative;
    z-index: 1;
}

.estrutura-cta p {
    color: var(--texto-secundario);
    font-size: 1.2rem;
    margin-bottom: 1.5rem;
}

.estrutura-cta .cta-button {
    display: inline-flex;
    align-items: center;
    gap: 0.8rem;
    background: var(--gradiente-metalico);
    color: #ffffff;
    padding: 1rem 2.5rem;
    font-size: 1.1rem;
    font-weight: 700;
    border-radius: 50px;
    text-decoration: none;
    transition: var(--transicao-rapida);
    box-shadow: var(--sombra-media);
}

.estrutura-cta .cta-button:hover {
    transform: translateY(-3px);
    box-shadow: var(--sombra-forte);
    background: linear-gradient(135deg, #2F5640 0%, #5D8F6E 100%);
}

.estrutura-cta .cta-button i {
    font-size: 1.3rem;
}

/* === PORTFÓLIO === */
.portfolio-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
    margin-bottom: 3rem;
}

.portfolio-item {
    border-radius: 12px;
    overflow: hidden;
    box-shadow: var(--sombra-suave);
    transition: var(--transicao-media);
}

.portfolio-item:hover {
    transform: translateY(-8px);
    box-shadow: var(--sombra-forte);
}

.portfolio-image {
    position: relative;
    overflow: hidden;
    aspect-ratio: 4/3;
}

.portfolio-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: var(--transicao-media);
}

.portfolio-item:hover .portfolio-image img {
    transform: scale(1.1);
}

.portfolio-overlay {
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    background: linear-gradient(to top, rgba(2, 7, 1, 0.95) 0%, transparent 100%);
    padding: 1.5rem;
    transform: translateY(100%);
    transition: var(--transicao-rapida);
}

.portfolio-item:hover .portfolio-overlay {
    transform: translateY(0);
}

.portfolio-overlay p {
    color: var(--cor-destaque);
    font-weight: 600;
    margin: 0;
}

.portfolio-note {
    text-align: center;
    padding: 1.5rem;
    background: rgba(143, 178, 154, 0.1);
    border-radius: 8px;
    border: 1px dashed var(--cor-secundaria);
}

.portfolio-note p {
    color: #666;
    margin: 0;
}

.portfolio-note i {
    color: var(--cor-primaria);
    margin-right: 0.5rem;
}

/* === COMO COTAR === */
.cotar-steps {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 3rem;
    margin-bottom: 4rem;
}

.cotar-step {
    text-align: center;
    position: relative;
    padding: 2rem;
    background: rgba(63, 111, 80, 0.05);
    border-radius: 12px;
    border: 2px solid rgba(143, 178, 154, 0.3);
    transition: var(--transicao-rapida);
}

.cotar-step:hover {
    background: rgba(63, 111, 80, 0.1);
    border-color: var(--cor-secundaria);
}

.step-number {
    position: absolute;
    top: -20px;
    left: 50%;
    transform: translateX(-50%);
    width: 40px;
    height: 40px;
    background: var(--gradiente-metalico);
    color: #ffffff;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
    font-weight: 700;
    box-shadow: var(--sombra-media);
}

.step-icon {
    font-size: 3rem;
    color: var(--cor-secundaria);
    margin: 1.5rem 0;
}

.cotar-step h3 {
    color: var(--cor-destaque);
    font-size: 1.5rem;
    margin-bottom: 1rem;
}

.cotar-step p {
    color: var(--texto-secundario);
    line-height: 1.7;
}

.cotar-checklist {
    background: rgba(63, 111, 80, 0.1);
    padding: 2.5rem;
    border-radius: 12px;
    border-left: 4px solid var(--cor-primaria);
    margin-bottom: 3rem;
}

.cotar-checklist h3 {
    color: var(--cor-destaque);
    font-size: 1.5rem;
    margin-bottom: 1.5rem;
}

.cotar-checklist h3 i {
    color: var(--cor-secundaria);
    margin-right: 0.75rem;
}

.cotar-checklist ul {
    list-style: none;
    display: grid;
    gap: 1rem;
}

.cotar-checklist li {
    color: var(--texto-secundario);
    padding-left: 2rem;
    position: relative;
    line-height: 1.7;
}

.cotar-checklist li i {
    position: absolute;
    left: 0;
    color: var(--cor-secundaria);
    font-size: 1.25rem;
}

.cotar-cta {
    text-align: center;
}

/* === CONTATO === */
.contato-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 3rem;
    margin-bottom: 3rem;
}

.contato-info {
    display: flex;
    flex-direction: column;
    gap: 2rem;
}

.contato-item {
    display: flex;
    gap: 1.5rem;
    padding: 1.5rem;
    background: #f8f9fa;
    border-radius: 10px;
    border-left: 4px solid var(--cor-primaria);
    transition: var(--transicao-rapida);
}

.contato-item:hover {
    background: #f0f2f4;
    transform: translateX(5px);
}

.contato-icon {
    width: 50px;
    height: 50px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--gradiente-metalico);
    border-radius: 50%;
    font-size: 1.5rem;
    color: #ffffff;
    flex-shrink: 0;
}

.contato-text h3 {
    color: var(--cor-primaria);
    font-size: 1.25rem;
    margin-bottom: 0.5rem;
}

.contato-text p,
.contato-text a {
    color: #555;
    line-height: 1.6;
}

.contato-text a:hover {
    color: var(--cor-primaria);
}

.contato-map {
    border-radius: 12px;
    overflow: hidden;
    box-shadow: var(--sombra-media);
}

.contato-map iframe {
    width: 100%;
    height: 100%;
    min-height: 400px;
    border: none;
}

.contato-final-cta {
    text-align: center;
    padding: 3rem;
    background: var(--gradiente-fundo);
    border-radius: 12px;
    box-shadow: var(--sombra-media);
}

.contato-final-cta h3 {
    color: var(--cor-destaque);
    font-size: 2rem;
    margin-bottom: 1.5rem;
}

/* === FOOTER === */
.footer {
    background: var(--bg-escuro);
    color: var(--texto-principal);
    padding: 3rem 0 1.5rem;
}

.footer-content {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr;
    gap: 3rem;
    margin-bottom: 2rem;
}

.footer-logo {
    max-width: 180px;
    margin-bottom: 1rem;
}

.footer-about p {
    color: var(--texto-secundario);
    line-height: 1.7;
}

.footer-col h4 {
    color: var(--cor-destaque);
    font-size: 1.125rem;
    margin-bottom: 1rem;
    font-weight: 600;
}

.footer-col ul {
    list-style: none;
}

.footer-col ul li {
    margin-bottom: 0.75rem;
}

.footer-col ul li a {
    color: var(--texto-secundario);
    transition: var(--transicao-rapida);
}

.footer-col ul li a:hover {
    color: var(--cor-destaque);
    padding-left: 5px;
}

.footer-col ul li i {
    color: var(--cor-secundaria);
    margin-right: 0.5rem;
    width: 20px;
}

.footer-bottom {
    border-top: 1px solid rgba(143, 178, 154, 0.2);
    padding-top: 1.5rem;
    text-align: center;
    color: var(--texto-secundario);
    font-size: 0.9rem;
}

.footer-bottom p {
    margin: 0.5rem 0;
}

.footer-bottom a {
    color: var(--texto-secundario);
}

.footer-bottom a:hover {
    color: var(--cor-destaque);
}

/* === WHATSAPP FLOATING BUTTON === */
.whatsapp-float {
    position: fixed;
    bottom: 30px;
    right: 30px;
    width: 60px;
    height: 60px;
    background: #25D366;
    color: #ffffff;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 2rem;
    box-shadow: 0 4px 20px rgba(37, 211, 102, 0.4);
    z-index: 999;
    transition: var(--transicao-rapida);
    animation: pulse 2s infinite;
}

.whatsapp-float:hover {
    transform: scale(1.1);
    box-shadow: 0 6px 30px rgba(37, 211, 102, 0.6);
    color: #ffffff;
}

@keyframes pulse {
    0%, 100% {
        box-shadow: 0 4px 20px rgba(37, 211, 102, 0.4);
    }
    50% {
        box-shadow: 0 4px 30px rgba(37, 211, 102, 0.7);
    }
}

/* === ANIMAÇÕES DE SCROLL === */
.fade-in {
    opacity: 0;
    transform: translateY(30px);
    transition: opacity 0.6s ease, transform 0.6s ease;
}

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

/* === RESPONSIVE === */
@media (max-width: 1024px) {
    .hero-title {
        font-size: 2.75rem;
    }
    
    .section-title {
        font-size: 2.25rem;
    }
    
    .footer-content {
        grid-template-columns: 1fr 1fr;
    }
    
    .footer-about {
        grid-column: 1 / -1;
    }
}

@media (max-width: 768px) {
    .nav {
        position: fixed;
        top: 80px;
        left: 0;
        right: 0;
        background: var(--bg-escuro-alt);
        padding: 2rem;
        box-shadow: var(--sombra-forte);
        transform: translateX(-100%);
        transition: var(--transicao-media);
    }
    
    .nav.active {
        transform: translateX(0);
    }
    
    .nav-list {
        flex-direction: column;
        gap: 1.5rem;
        align-items: flex-start;
    }
    
    .btn-header {
        display: none;
    }
    
    .mobile-menu-toggle {
        display: flex;
    }
    
    .mobile-menu-toggle.active span:nth-child(1) {
        transform: rotate(45deg) translate(7px, 7px);
    }
    
    .mobile-menu-toggle.active span:nth-child(2) {
        opacity: 0;
    }
    
    .mobile-menu-toggle.active span:nth-child(3) {
        transform: rotate(-45deg) translate(7px, -7px);
    }
    
    .hero {
        min-height: 100vh;
        padding: 6rem 0 3rem;
    }
    
    .hero-title {
        font-size: 2.25rem;
    }
    
    .hero-subtitle {
        font-size: 1.125rem;
    }
    
    .hero-cta {
        flex-direction: column;
        align-items: stretch;
    }
    
    .hero-cta .btn {
        width: 100%;
        justify-content: center;
    }
    
    .section {
        padding: 3rem 0;
    }
    
    .section-title {
        font-size: 2rem;
    }
    
    .servicos-grid {
        grid-template-columns: 1fr;
    }
    
    .historia-timeline::before {
        left: 20px;
    }
    
    .timeline-item {
        flex-direction: column;
        gap: 1rem;
    }
    
    .timeline-icon {
        width: 50px;
        height: 50px;
        font-size: 1.2rem;
    }
    
    .timeline-content {
        padding: 1.5rem;
    }
    
    .timeline-content h3 {
        font-size: 1.3rem;
    }
    
    .historia-lead {
        font-size: 1.1rem;
    }
    
    .clientes-logos {
        gap: 2rem;
    }
    
    .capacidade-list {
        grid-template-columns: 1fr;
    }
    
    .portfolio-grid {
        grid-template-columns: 1fr;
    }
    
    .estrutura-grid {
        grid-template-columns: 1fr;
        gap: 1.5rem;
    }
    
    .estrutura-image {
        height: 240px;
    }
    
    .cotar-steps {
        grid-template-columns: 1fr;
        gap: 2rem;
    }
    
    .contato-grid {
        grid-template-columns: 1fr;
    }
    
    .footer-content {
        grid-template-columns: 1fr;
        gap: 2rem;
    }
    
    .whatsapp-float {
        bottom: 20px;
        right: 20px;
        width: 55px;
        height: 55px;
        font-size: 1.75rem;
    }
}

@media (max-width: 480px) {
    .hero-title {
        font-size: 1.875rem;
    }
    
    .section-title {
        font-size: 1.75rem;
    }
    
    h1 {
        font-size: 2rem;
    }
    
    h2 {
        font-size: 1.75rem;
    }
    
    h3 {
        font-size: 1.25rem;
    }
    
    .btn {
        padding: 0.75rem 1.5rem;
        font-size: 0.9rem;
    }
    
    .btn-lg {
        padding: 1rem 1.75rem;
        font-size: 1rem;
    }
}