/* ==========================================================================
   SETUP DE VARIÁVEIS (DESIGN TOKENS)
   ========================================================================== */
:root {
    /* Cores Primárias */
    --primary-blue: #0A2342; /* Azul Zafira / Azul Escuro */
    --graphite-dark: #1A1C20; /* Grafite/Preto */
    
    /* Cores Secundárias */
    --concrete-gray: #6B7280; /* Cinza Concreto */
    --concrete-light: #F3F4F6; /* Cinza Claro (Fundo) */
    --white: #FFFFFF;
    
    /* Destaques / CTAs */
    --burnt-gold: #C59B27; /* Dourado Queimado / Ocre Construtivo */
    --burnt-gold-hover: #A7811B;
    
    /* Tipografia */
    --font-heading: 'Montserrat', sans-serif;
    --font-body: 'Inter', sans-serif;
    
    /* Espaçamentos e Estrutura */
    --container-width: 1200px;
    --spacing-xs: 0.5rem;
    --spacing-sm: 1rem;
    --spacing-md: 2rem;
    --spacing-lg: 3.5rem;
    --spacing-xl: 5.5rem;
    
    /* UI Elements */
    --radius-sm: 4px;
    --radius-md: 8px;
    --radius-lg: 12px;
    --transition-fast: 0.25s ease-in-out;
}

/* ==========================================================================
   RESET BÁSICO E GLOBAL
   ========================================================================== */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
}

body {
    font-family: var(--font-body);
    color: var(--graphite-dark);
    background-color: var(--white);
    line-height: 1.6;
    -webkit-font-smoothing: antialiased;
}

ul {
    list-style: none;
}

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

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

.container {
    width: 100%;
    max-width: var(--container-width);
    margin: 0 auto;
    padding: 0 var(--spacing-sm);
}

/* ==========================================================================
   BOTÕES (CTAs)
   ========================================================================== */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 0.75rem 1.5rem;
    font-family: var(--font-heading);
    font-weight: 700;
    font-size: 0.875rem;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    border-radius: var(--radius-sm);
    cursor: pointer;
    transition: all var(--transition-fast);
    text-align: center;
    border: 2px solid transparent;
}

.btn-primary {
    background-color: var(--burnt-gold);
    color: var(--white);
    box-shadow: 0 4px 12px rgba(197, 155, 39, 0.3);
}

.btn-primary:hover {
    background-color: var(--burnt-gold-hover);
    transform: translateY(-2px);
    box-shadow: 0 6px 16px rgba(197, 155, 39, 0.45);
}

.btn-outline {
    background-color: transparent;
    color: var(--white);
    border-color: var(--white);
}

.btn-outline:hover {
    background-color: var(--white);
    color: var(--primary-blue);
    transform: translateY(-2px);
}

.btn-outline-dark {
    background-color: transparent;
    color: var(--primary-blue);
    border-color: var(--primary-blue);
    font-size: 0.8rem;
    padding: 0.6rem 1rem;
    width: 100%;
}

.btn-outline-dark:hover {
    background-color: var(--burnt-gold);
    border-color: var(--burnt-gold);
    color: var(--white);
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(197, 155, 39, 0.3);
}

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

/* ==========================================================================
   HEADER
   ========================================================================== */
.main-header {
    background-color: var(--primary-blue);
    color: var(--white);
    position: sticky;
    top: 0;
    z-index: 1000;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.15);
}

.header-container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    height: 80px;
}

.logo {
    display: flex;
    align-items: center;
    gap: 10px;
}

.logo-img {
    height: 44px;
    width: auto;
    object-fit: contain;
}

.nav-links {
    display: flex;
    gap: var(--spacing-md);
}

.nav-links a {
    font-weight: 600;
    font-size: 0.9rem;
    text-transform: uppercase;
    position: relative;
    padding: 0.5rem 0;
}

.nav-links a::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 0%;
    height: 2px;
    background-color: var(--burnt-gold);
    transition: width var(--transition-fast);
}

.nav-links a:hover::after,
.nav-links a.active::after {
    width: 100%;
}

.mobile-menu-toggle {
    display: none;
    background: none;
    border: none;
    cursor: pointer;
    flex-direction: column;
    gap: 5px;
    padding: 8px;
}

.mobile-menu-toggle span {
    display: block;
    width: 26px;
    height: 3px;
    background-color: var(--white);
    border-radius: 2px;
    transition: all 0.3s ease;
}

.mobile-menu-toggle.open span:nth-child(1) {
    transform: translateY(8px) rotate(45deg);
}

.mobile-menu-toggle.open span:nth-child(2) {
    opacity: 0;
}

.mobile-menu-toggle.open span:nth-child(3) {
    transform: translateY(-8px) rotate(-45deg);
}

/* ==========================================================================
   HERO SECTION
   ========================================================================== */
.hero {
    position: relative;
    height: calc(100vh - 80px);
    min-height: 600px;
    display: flex;
    align-items: center;
    background-image: url('../assets/hero-bg.jpg');
    background-size: cover;
    background-position: center;
    background-repeat: no-repeat;
}

.hero-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(135deg, rgba(10, 35, 66, 0.92) 0%, rgba(26, 28, 32, 0.7) 100%);
    z-index: 1;
}

.hero-content {
    position: relative;
    z-index: 2;
    color: var(--white);
    max-width: 840px;
}

.hero-title {
    font-family: var(--font-heading);
    font-weight: 900;
    font-size: 3.5rem;
    line-height: 1.15;
    margin-bottom: var(--spacing-sm);
    text-transform: uppercase;
    letter-spacing: -1px;
}

.hero-subtitle {
    font-size: 1.25rem;
    font-weight: 400;
    margin-bottom: var(--spacing-md);
    color: var(--concrete-light);
    max-width: 650px;
}

.hero-actions {
    display: flex;
    gap: var(--spacing-sm);
}

/* ==========================================================================
   SEÇÕES GERAIS E UTILITÁRIOS
   ========================================================================== */
.section-padding {
    padding: var(--spacing-xl) 0;
}

.section-header {
    text-align: center;
    margin-bottom: var(--spacing-lg);
}

.section-title {
    font-family: var(--font-heading);
    font-weight: 800;
    font-size: 2.3rem;
    color: var(--primary-blue);
    text-transform: uppercase;
    letter-spacing: -0.5px;
    margin-bottom: var(--spacing-xs);
}

.section-description {
    max-width: 650px;
    margin: 0.8rem auto 0 auto;
    color: var(--concrete-gray);
    font-size: 1.05rem;
}

.title-underline {
    width: 60px;
    height: 4px;
    background-color: var(--burnt-gold);
    margin: 0 auto;
    border-radius: 2px;
}

/* ==========================================================================
   PRODUTOS (VITRINE MODULAR)
   ========================================================================== */
.products-section {
    background-color: var(--concrete-light);
}

.products-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: var(--spacing-md);
}

.product-card {
    background-color: var(--white);
    border-radius: var(--radius-md);
    overflow: hidden;
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.06);
    transition: transform var(--transition-fast), box-shadow var(--transition-fast);
    display: flex;
    flex-direction: column;
    border: 1px solid rgba(0, 0, 0, 0.05);
}

.product-card:hover {
    transform: translateY(-6px);
    box-shadow: 0 12px 30px rgba(0, 0, 0, 0.12);
}

.product-image {
    width: 100%;
    height: 220px;
    overflow: hidden;
    background-color: #E5E7EB;
}

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

.product-card:hover .product-image img {
    transform: scale(1.06);
}

.product-content {
    padding: 1.5rem;
    display: flex;
    flex-direction: column;
    flex-grow: 1;
    gap: 0.75rem;
}

.product-title {
    color: var(--primary-blue);
    font-family: var(--font-heading);
    font-size: 1.25rem;
    font-weight: 800;
    margin: 0;
}

.product-desc {
    color: #4B5563;
    font-size: 0.9rem;
    line-height: 1.5;
    flex-grow: 1;
}

.product-btn {
    margin-top: 0.5rem;
}

/* ==========================================================================
   A EMPRESA (INSTITUCIONAL)
   ========================================================================== */
.about-section {
    background-color: var(--white);
}

.about-container {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-xl);
    align-items: center;
}

.about-content .section-title {
    text-align: left;
    font-size: 2.2rem;
    line-height: 1.2;
}

.about-content .title-underline {
    margin: 0 0 var(--spacing-md) 0;
}

.about-copy {
    font-size: 1.05rem;
    color: #4B5563;
    margin-bottom: var(--spacing-lg);
    line-height: 1.7;
}

.features-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-md);
}

.feature-item {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
}

.feature-icon {
    width: 20px;
    height: 20px;
    background-color: var(--burnt-gold);
    clip-path: polygon(50% 0%, 100% 50%, 50% 100%, 0% 50%);
    flex-shrink: 0;
}

.feature-text {
    font-family: var(--font-heading);
    font-weight: 700;
    font-size: 0.85rem;
    color: var(--primary-blue);
    text-transform: uppercase;
}

.about-image {
    position: relative;
    border-radius: var(--radius-md);
    overflow: hidden;
    box-shadow: -15px 15px 0 var(--concrete-light);
}

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

/* ==========================================================================
   PÚBLICO (PARA QUEM CONSTRUÍMOS)
   ========================================================================== */
.audience-section {
    background-color: var(--concrete-light);
}

.audience-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: var(--spacing-md);
}

.audience-card {
    background-color: var(--white);
    padding: var(--spacing-lg);
    border-radius: var(--radius-md);
    text-align: center;
    border-bottom: 4px solid var(--burnt-gold);
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.05);
    transition: transform var(--transition-fast);
}

.audience-card:hover {
    transform: translateY(-5px);
}

.audience-icon {
    color: var(--primary-blue);
    margin-bottom: var(--spacing-md);
}

.audience-title {
    font-family: var(--font-heading);
    color: var(--primary-blue);
    font-size: 1.25rem;
    margin-bottom: var(--spacing-sm);
}

.audience-desc {
    color: var(--concrete-gray);
    font-size: 0.95rem;
    line-height: 1.5;
}

/* ==========================================================================
   CONTATO (CAPTURA)
   ========================================================================== */
.contact-section {
    background-color: var(--graphite-dark);
    color: var(--white);
}

.text-white {
    color: var(--white);
}

.underline-left {
    margin: 0 0 var(--spacing-md) 0;
}

.contact-container {
    display: grid;
    grid-template-columns: 1fr 1.1fr;
    gap: var(--spacing-xl);
    align-items: center;
}

.contact-desc {
    font-size: 1.05rem;
    color: var(--concrete-light);
    margin-bottom: var(--spacing-lg);
    line-height: 1.6;
}

.contact-info-list {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-md);
}

.contact-item {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    font-size: 1.05rem;
    color: var(--white);
    transition: color var(--transition-fast);
}

.contact-item:hover {
    color: var(--burnt-gold);
}

.contact-item svg {
    flex-shrink: 0;
}

.contact-form-wrapper {
    background-color: var(--white);
    padding: var(--spacing-lg);
    border-radius: var(--radius-md);
    box-shadow: 0 15px 35px rgba(0, 0, 0, 0.3);
}

.contact-form {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-sm);
}

.form-group {
    display: flex;
    flex-direction: column;
    gap: 0.35rem;
}

.form-group label {
    color: var(--graphite-dark);
    font-size: 0.85rem;
    font-weight: 700;
}

.form-group input,
.form-group select {
    padding: 0.8rem 1rem;
    border: 1px solid #D1D5DB;
    border-radius: var(--radius-sm);
    font-family: var(--font-body);
    font-size: 0.95rem;
    color: var(--graphite-dark);
    background-color: #FAFAFA;
    transition: border-color var(--transition-fast), box-shadow var(--transition-fast);
}

.form-group input:focus,
.form-group select:focus {
    outline: none;
    border-color: var(--primary-blue);
    box-shadow: 0 0 0 3px rgba(10, 35, 66, 0.15);
    background-color: var(--white);
}

.btn-submit {
    width: 100%;
    margin-top: 0.5rem;
    padding: 1rem;
    font-size: 1rem;
}

/* ==========================================================================
   FOOTER E WHATSAPP FLOAT
   ========================================================================== */
.main-footer {
    background-color: var(--primary-blue);
    color: var(--white);
    padding-top: var(--spacing-lg);
}

.footer-container {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr;
    gap: var(--spacing-lg);
    margin-bottom: var(--spacing-lg);
}

.footer-brand {
    display: flex;
    flex-direction: column;
    gap: 0.4rem;
}

.footer-slogan {
    color: var(--burnt-gold);
    font-weight: 600;
    font-size: 0.95rem;
    margin-top: 0.5rem;
}

.footer-contact-small {
    font-size: 0.85rem;
    color: var(--concrete-light);
}

.footer-links h4,
.footer-social h4 {
    font-family: var(--font-heading);
    font-size: 1rem;
    margin-bottom: var(--spacing-sm);
    text-transform: uppercase;
}

.footer-links ul {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}

.footer-links a {
    color: var(--concrete-light);
    font-size: 0.9rem;
}

.footer-links a:hover {
    color: var(--burnt-gold);
}

.social-icons {
    display: flex;
    gap: var(--spacing-sm);
}

.social-icons a {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 40px;
    height: 40px;
    border: 1px solid rgba(255, 255, 255, 0.2);
    border-radius: 50%;
    color: var(--white);
    transition: all var(--transition-fast);
}

.social-icons a:hover {
    background-color: var(--burnt-gold);
    border-color: var(--burnt-gold);
    transform: translateY(-2px);
}

.footer-bottom {
    background-color: rgba(0, 0, 0, 0.25);
    padding: var(--spacing-sm) 0;
    text-align: center;
    font-size: 0.85rem;
    color: var(--concrete-light);
}

/* Botão Whatsapp */
.whatsapp-float {
    position: fixed;
    bottom: 30px;
    right: 30px;
    background-color: #25D366;
    color: var(--white);
    width: 60px;
    height: 60px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: 0 6px 20px rgba(37, 211, 102, 0.4);
    z-index: 1000;
    transition: transform var(--transition-fast), box-shadow var(--transition-fast);
}

.whatsapp-float:hover {
    transform: scale(1.1);
    box-shadow: 0 8px 25px rgba(37, 211, 102, 0.6);
}

/* ==========================================================================
   MEDIA QUERIES (Responsividade)
   ========================================================================== */
@media (max-width: 992px) {
    .nav-links {
        display: none;
        position: absolute;
        top: 80px;
        left: 0;
        width: 100%;
        background-color: var(--primary-blue);
        flex-direction: column;
        padding: 1.5rem 2rem;
        gap: 1.2rem;
        box-shadow: 0 15px 30px rgba(0, 0, 0, 0.25);
        border-top: 1px solid rgba(255, 255, 255, 0.1);
        z-index: 999;
    }
    
    .nav-links.active {
        display: flex;
    }
    
    .cta-header {
        display: none;
    }
    
    .mobile-menu-toggle {
        display: flex;
    }
    
    .hero-title {
        font-size: 2.6rem;
    }

    .about-container,
    .contact-container,
    .footer-container {
        grid-template-columns: 1fr;
    }

    .about-image {
        box-shadow: -10px 10px 0 var(--concrete-light);
    }
    
    .title-underline.underline-left {
        margin: 0 auto var(--spacing-md) auto;
    }
    
    .contact-text {
        text-align: center;
    }
    
    .contact-info-list {
        align-items: center;
    }
}

@media (max-width: 576px) {
    .hero-title {
        font-size: 2.1rem;
    }
    
    .hero-subtitle {
        font-size: 1rem;
    }
    
    .hero-actions {
        flex-direction: column;
    }
    
    .hero-actions .btn {
        width: 100%;
    }

    .section-title {
        font-size: 1.8rem;
    }

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

    .whatsapp-float {
        bottom: 20px;
        right: 20px;
        width: 54px;
        height: 54px;
    }
}