/* ==========================================================================
   CSS Variables & Reset
   ========================================================================== */
:root {
    /* Colors */
    --primary: #0284c7; /* Azul forte */
    --primary-dark: #0369a1; /* Azul mais escuro */
    --dark: #1e293b; /* Cinza escuro (ardósia) */
    --dark-alt: #334155; /* Cinza ardósia médio */
    --light: #ffffff; /* Branco */
    --light-bg: #f8fafc; /* Branco acinzentado/gelo */
    --gray: #64748b; /* Cinza texto */
    --border: #e2e8f0; /* Cinza borda */
    --whatsapp: #25d366;
    
    /* Typography */
    --font-heading: 'Montserrat', sans-serif;
    --font-body: 'Inter', sans-serif;
    
    /* Transitions */
    --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    
    /* Box Shadows */
    --shadow-sm: 0 4px 6px rgba(0, 0, 0, 0.05);
    --shadow-md: 0 10px 20px rgba(0, 0, 0, 0.1);
    --shadow-lg: 0 20px 40px rgba(0, 0, 0, 0.15);
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
    scroll-padding-top: 80px; /* Offset for sticky header */
    overflow-x: hidden;
}

body {
    font-family: var(--font-body);
    color: #333333;
    background-color: var(--light);
    line-height: 1.6;
    overflow-x: hidden;
    width: 100%;
}

h1, h2, h3, h4, h5, h6 {
    font-family: var(--font-heading);
    font-weight: 700;
    line-height: 1.2;
    color: var(--dark);
    margin-bottom: 1rem;
}

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

ul {
    list-style: none;
}

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

.container {
    width: 100%;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

.section-padding {
    padding: 80px 0;
}

.text-center { text-align: center; }
.mb-3 { margin-bottom: 1rem; }
.mb-4 { margin-bottom: 1.5rem; }
.mt-3 { margin-top: 1rem; }
.mt-4 { margin-top: 1.5rem; }
.mt-5 { margin-top: 3rem; }
.bg-light { background-color: var(--light-bg); }
.bg-dark { background-color: var(--dark); color: var(--light); }
.text-white { color: var(--light) !important; }

/* ==========================================================================
   Typography & Utilities
   ========================================================================== */
.highlight {
    color: var(--primary);
}

.section-subtitle {
    color: var(--primary);
    text-transform: uppercase;
    letter-spacing: 2px;
    font-size: 0.875rem;
    font-weight: 600;
    margin-bottom: 0.5rem;
}

.section-title {
    font-size: 2.5rem;
    margin-bottom: 1.5rem;
    position: relative;
    padding-bottom: 1rem;
}

.section-title::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 60px;
    height: 4px;
    background-color: var(--primary);
}

.text-center .section-title::after {
    left: 50%;
    transform: translateX(-50%);
}

.section-text {
    color: var(--gray);
    font-size: 1.125rem;
    margin-bottom: 1.5rem;
}

/* ==========================================================================
   Buttons
   ========================================================================== */
.btn {
    display: inline-block;
    padding: 14px 30px;
    font-family: var(--font-heading);
    font-weight: 600;
    font-size: 1rem;
    border-radius: 4px;
    cursor: pointer;
    border: none;
    text-align: center;
    transition: var(--transition);
}

.btn-primary {
    background-color: var(--primary);
    color: var(--light);
}

.btn-primary:hover {
    background-color: var(--primary-dark);
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
}

.btn-outline {
    background-color: transparent;
    border: 2px solid var(--light);
    color: var(--light);
}

.btn-outline:hover {
    background-color: var(--light);
    color: var(--dark);
}

.btn-whatsapp {
    background-color: var(--whatsapp);
    color: var(--light);
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 10px;
}

.btn-whatsapp:hover {
    background-color: #1ebe5d;
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
}

.btn-sm {
    padding: 10px 20px;
    font-size: 0.875rem;
}

.btn-lg {
    padding: 16px 36px;
    font-size: 1.125rem;
}

.btn-block {
    display: block;
    width: 100%;
}

/* ==========================================================================
   Header & Navigation
   ========================================================================== */
.header {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    background-color: rgba(18, 18, 18, 0.95);
    backdrop-filter: blur(10px);
    z-index: 1000;
    transition: var(--transition);
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

.header.scrolled {
    padding: 5px 0;
    box-shadow: var(--shadow-md);
    background-color: rgba(18, 18, 18, 1);
}

.nav-container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    height: 80px;
    transition: var(--transition);
}

.header.scrolled .nav-container {
    height: 70px;
}

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

.logo-img {
    max-height: 75px;
    width: auto;
    transition: var(--transition);
}

.header.scrolled .logo-img {
    max-height: 60px;
}

.footer-logo {
    max-height: 90px;
    margin-bottom: 15px;
}

.nav-menu {
    display: flex;
    align-items: center;
}

.nav-list {
    display: flex;
    gap: 30px;
}

.nav-link {
    color: var(--light);
    font-weight: 500;
    font-size: 0.95rem;
    position: relative;
    padding: 5px 0;
}

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

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

.nav-link:hover,
.nav-link.active {
    color: var(--primary);
}

.nav-actions {
    display: flex;
    align-items: center;
    gap: 15px;
}

.mobile-menu-toggle {
    display: none;
    background: none;
    border: none;
    color: var(--light);
    font-size: 1.5rem;
    cursor: pointer;
}

/* ==========================================================================
   Hero Section
   ========================================================================== */
.hero {
    position: relative;
    height: 100vh;
    min-height: 600px;
    background-image: url('../fundo.jpg');
    background-size: cover;
    background-position: center;
    background-attachment: fixed;
    display: flex;
    align-items: center;
    padding-top: 80px;
}

.hero-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(to right, rgba(30, 41, 59, 0.85) 0%, rgba(30, 41, 59, 0.4) 100%);
}

.hero-content {
    position: relative;
    z-index: 10;
}

.hero-text-box {
    max-width: 700px;
}

.hero-badge {
    display: inline-block;
    background-color: rgba(2, 132, 199, 0.2);
    color: var(--primary);
    padding: 8px 16px;
    border-radius: 30px;
    font-size: 0.875rem;
    font-weight: 600;
    margin-bottom: 20px;
    border: 1px solid rgba(2, 132, 199, 0.4);
}

.hero-title {
    font-size: 4rem;
    color: var(--light);
    margin-bottom: 20px;
    line-height: 1.1;
}

.hero-subtitle {
    font-size: 1.25rem;
    color: #cccccc;
    margin-bottom: 40px;
}

.hero-buttons {
    display: flex;
    gap: 20px;
}

/* Quick Blocks */
.quick-blocks-wrapper {
    position: absolute;
    bottom: -50px;
    left: 0;
    width: 100%;
    z-index: 20;
}

.quick-blocks {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 20px;
}

.quick-block {
    background-color: var(--dark-alt);
    padding: 30px 20px;
    border-radius: 8px;
    text-align: center;
    box-shadow: var(--shadow-lg);
    border-bottom: 4px solid var(--primary);
    transition: var(--transition);
}

.quick-block:hover {
    transform: translateY(-10px);
    background-color: #2a2a2a;
}

.quick-block i {
    font-size: 2.5rem;
    color: var(--primary);
    margin-bottom: 15px;
}

.quick-block h3 {
    color: var(--light);
    font-size: 1.125rem;
    margin-bottom: 0;
}

/* ==========================================================================
   Page Headers
   ========================================================================== */
.page-header {
    padding: 150px 0 80px;
    background-size: cover;
    background-position: center;
    color: var(--light);
}

.page-header h1 {
    color: var(--light);
    font-size: 3rem;
}

/* ==========================================================================
   About Section
   ========================================================================== */
.about {
    padding-top: 120px; /* Space for quick blocks */
}

.about-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
    align-items: center;
}

.about-image {
    position: relative;
    border-radius: 8px;
    overflow: hidden;
    box-shadow: var(--shadow-lg);
}

.about-image img {
    transition: transform 0.5s ease;
}

.about-image:hover img {
    transform: scale(1.05);
}

.experience-badge {
    position: absolute;
    bottom: -1px;
    right: -1px;
    background-color: var(--primary);
    color: var(--light);
    padding: 30px;
    border-radius: 8px 0 0 0;
    text-align: center;
    box-shadow: -10px -10px 30px rgba(0,0,0,0.2);
}

.experience-badge .number {
    display: block;
    font-size: 3rem;
    font-weight: 800;
    font-family: var(--font-heading);
    line-height: 1;
}

.experience-badge .text {
    font-size: 0.875rem;
    font-weight: 600;
    text-transform: uppercase;
}

.about-list {
    margin-top: 30px;
}

.about-list li {
    display: flex;
    align-items: center;
    gap: 15px;
    margin-bottom: 15px;
    font-size: 1.125rem;
    color: var(--dark);
    font-weight: 500;
}

.about-list i {
    color: var(--primary);
    font-size: 1.25rem;
}

/* ==========================================================================
   Services Section
   ========================================================================== */
.services-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 30px;
    margin-top: 50px;
}

.service-card {
    background-color: var(--light);
    padding: 40px 30px;
    border-radius: 8px;
    box-shadow: var(--shadow-sm);
    transition: var(--transition);
    border: 1px solid var(--border);
    position: relative;
    overflow: hidden;
    z-index: 1;
}

.service-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 0;
    background-color: var(--primary);
    transition: var(--transition);
    z-index: -1;
}

.service-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-md);
    border-color: var(--primary);
}

.service-card:hover::before {
    height: 4px;
}

.service-icon {
    width: 70px;
    height: 70px;
    background-color: var(--light-bg);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 25px;
    transition: var(--transition);
}

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

.service-icon i {
    font-size: 2rem;
    color: var(--primary);
    transition: var(--transition);
}

.service-card:hover .service-icon i {
    color: var(--light);
}

.service-card h3 {
    font-size: 1.25rem;
    margin-bottom: 15px;
}

.service-card p {
    color: var(--gray);
    font-size: 0.95rem;
}

/* ==========================================================================
   Gallery Section
   ========================================================================== */
.gallery-filters {
    display: flex;
    justify-content: center;
    flex-wrap: wrap;
    gap: 15px;
    margin-bottom: 40px;
    margin-top: 30px;
}

.filter-btn {
    background: transparent;
    border: 1px solid var(--border);
    padding: 8px 24px;
    border-radius: 30px;
    cursor: pointer;
    font-family: var(--font-body);
    font-weight: 500;
    font-size: 0.95rem;
    transition: var(--transition);
}

.filter-btn:hover,
.filter-btn.active {
    background-color: var(--primary);
    color: var(--light);
    border-color: var(--primary);
}

.gallery-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 20px;
}

.gallery-item {
    position: relative;
    border-radius: 8px;
    overflow: hidden;
    cursor: pointer;
}

.gallery-item img {
    width: 100%;
    height: 300px;
    object-fit: cover;
    transition: transform 0.5s ease;
}

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

.gallery-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(to top, rgba(18, 18, 18, 0.9) 0%, rgba(18, 18, 18, 0) 100%);
    display: flex;
    align-items: flex-end;
    padding: 30px;
    opacity: 0;
    transition: var(--transition);
}

.gallery-item:hover .gallery-overlay {
    opacity: 1;
}

.gallery-info {
    transform: translateY(20px);
    transition: var(--transition);
}

.gallery-item:hover .gallery-info {
    transform: translateY(0);
}

.gallery-category {
    color: var(--primary);
    font-size: 0.875rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 1px;
    display: block;
    margin-bottom: 5px;
}

.gallery-title {
    color: var(--light);
    font-size: 1.25rem;
    margin: 0;
}

/* ==========================================================================
   Service Details (Construcao / Isolamentos Pages)
   ========================================================================== */
.service-details-grid {
    display: grid;
    grid-template-columns: 2fr 1fr;
    gap: 50px;
}

.lead-text {
    font-size: 1.25rem;
    color: var(--dark);
    font-weight: 500;
    margin-bottom: 1.5rem;
}

.rounded-img {
    border-radius: 8px;
}

.shadow {
    box-shadow: var(--shadow-lg);
}

.service-features {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 30px;
}

.feature-item {
    display: flex;
    gap: 15px;
}

.feature-item i {
    font-size: 1.5rem;
    color: var(--primary);
    margin-top: 5px;
}

.feature-item h4 {
    margin-bottom: 5px;
}

.feature-item p {
    font-size: 0.95rem;
    color: var(--gray);
}

.benefits-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 20px;
}

.benefit-card {
    background-color: var(--light-bg);
    padding: 25px;
    border-radius: 8px;
    border-left: 4px solid var(--primary);
}

.benefit-card i {
    font-size: 2rem;
    color: var(--primary);
    margin-bottom: 15px;
}

/* ==========================================================================
   CTA Section
   ========================================================================== */
.cta-section {
    position: relative;
    padding: 100px 0;
    background-image: url('https://images.unsplash.com/photo-1503387762-592deb58ef4e?ixlib=rb-4.0.3&auto=format&fit=crop&w=1920&q=80');
    background-size: cover;
    background-position: center;
    background-attachment: fixed;
}

.cta-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(18, 18, 18, 0.85);
}

.cta-content {
    position: relative;
    z-index: 10;
}

.cta-content h2 {
    color: var(--light);
    font-size: 2.5rem;
    margin-bottom: 15px;
}

.cta-content p {
    color: #cccccc;
    font-size: 1.25rem;
    margin-bottom: 30px;
}

.cta-buttons {
    display: flex;
    justify-content: center;
    gap: 20px;
}

/* ==========================================================================
   Contact Section
   ========================================================================== */
.contact-grid {
    display: grid;
    grid-template-columns: 1fr 1.5fr;
    gap: 50px;
    margin-top: 40px;
}

.contact-info {
    display: flex;
    flex-direction: column;
    gap: 30px;
}

.info-card {
    display: flex;
    align-items: flex-start;
    gap: 20px;
}

.info-card .icon {
    width: 60px;
    height: 60px;
    background-color: rgba(2, 132, 199, 0.1);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
}

.info-card .icon i {
    font-size: 1.5rem;
    color: var(--primary);
}

.info-card h4 {
    margin-bottom: 5px;
}

.info-card p, .info-card a {
    color: var(--gray);
    font-size: 1.125rem;
}

.info-card a:hover {
    color: var(--primary);
}

/* Contact Form */
.contact-form-wrapper {
    background-color: var(--light);
    padding: 40px;
    border-radius: 8px;
    box-shadow: var(--shadow-lg);
    border: 1px solid var(--border);
}

.form-group {
    margin-bottom: 20px;
}

.form-row {
    display: flex;
    gap: 20px;
}

.form-group.half {
    width: 50%;
}

.form-control {
    width: 100%;
    padding: 15px 20px;
    background-color: var(--light-bg);
    border: 1px solid var(--border);
    border-radius: 4px;
    font-family: var(--font-body);
    font-size: 1rem;
    color: var(--dark);
    transition: var(--transition);
}

.form-control:focus {
    outline: none;
    border-color: var(--primary);
    background-color: var(--light);
}

textarea.form-control {
    resize: vertical;
    min-height: 120px;
}

.file-upload {
    position: relative;
    overflow: hidden;
    display: inline-block;
    width: 100%;
}

.file-upload input[type=file] {
    font-size: 100px;
    position: absolute;
    left: 0;
    top: 0;
    opacity: 0;
    cursor: pointer;
    height: 100%;
}

.file-upload label {
    display: block;
    width: 100%;
    padding: 15px;
    background-color: var(--light-bg);
    border: 1px dashed var(--gray);
    border-radius: 4px;
    text-align: center;
    cursor: pointer;
    color: var(--gray);
    transition: var(--transition);
}

.file-upload:hover label {
    border-color: var(--primary);
    color: var(--primary);
}

/* ==========================================================================
   Footer
   ========================================================================== */
.footer {
    background-color: var(--dark);
    color: var(--light);
    padding-top: 80px;
}

.footer-grid {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr 1fr;
    gap: 40px;
    margin-bottom: 60px;
}

.footer-about p {
    color: #a0a0a0;
    margin: 20px 0;
}

.social-links {
    display: flex;
    gap: 15px;
}

.social-links a {
    width: 40px;
    height: 40px;
    background-color: rgba(255, 255, 255, 0.1);
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 50%;
    color: var(--light);
    transition: var(--transition);
}

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

.footer-links h3, .footer-contact h3 {
    color: var(--light);
    font-size: 1.25rem;
    margin-bottom: 25px;
    position: relative;
    padding-bottom: 10px;
}

.footer-links h3::after, .footer-contact h3::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 30px;
    height: 2px;
    background-color: var(--primary);
}

.footer-links ul li {
    margin-bottom: 15px;
}

.footer-links ul li a {
    color: #a0a0a0;
}

.footer-links ul li a:hover {
    color: var(--primary);
    padding-left: 5px;
}

.footer-contact p {
    color: #a0a0a0;
    margin-bottom: 15px;
    display: flex;
    align-items: center;
    gap: 10px;
}

.footer-contact i {
    color: var(--primary);
}

.footer-bottom {
    background-color: #0d0d0d;
    padding: 20px 0;
    border-top: 1px solid rgba(255, 255, 255, 0.05);
}

.footer-bottom .container {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.footer-bottom p, .footer-bottom a {
    color: #8c8c8c;
    font-size: 0.875rem;
}

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

/* ==========================================================================
   Floating WhatsApp Button
   ========================================================================== */
.whatsapp-float {
    position: fixed;
    width: 60px;
    height: 60px;
    bottom: 40px;
    right: 40px;
    background-color: var(--whatsapp);
    color: var(--light);
    border-radius: 50px;
    text-align: center;
    font-size: 30px;
    box-shadow: var(--shadow-lg);
    z-index: 100;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: var(--transition);
}

.whatsapp-float:hover {
    transform: scale(1.1);
    background-color: #1ebe5d;
}

/* ==========================================================================
   Animations
   ========================================================================== */
.reveal {
    opacity: 0;
    transform: translateY(30px);
    transition: all 0.8s ease;
}

.reveal.active {
    opacity: 1;
    transform: translateY(0);
}

.delay-1 { transition-delay: 0.1s; }
.delay-2 { transition-delay: 0.2s; }
.delay-3 { transition-delay: 0.3s; }

/* ==========================================================================
   Responsive Design
   ========================================================================== */
@media (max-width: 1200px) {
    .services-grid {
        grid-template-columns: repeat(3, 1fr);
    }
}

@media (max-width: 992px) {
    .hero-title {
        font-size: 2.8rem;
    }
    
    .quick-blocks {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .quick-blocks-wrapper {
        position: relative;
        bottom: 0;
        margin-top: 20px;
        padding-bottom: 50px;
    }
    
    .about-grid, .service-details-grid {
        grid-template-columns: 1fr;
        gap: 40px;
    }
    
    .services-grid, .gallery-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .contact-grid {
        grid-template-columns: 1fr;
    }
    
    .footer-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 768px) {
    .mobile-menu-toggle {
        display: block;
    }
    
    .nav-menu {
        position: fixed;
        top: 80px;
        left: -100%;
        width: 100%;
        height: calc(100vh - 80px);
        background-color: var(--dark);
        flex-direction: column;
        align-items: center;
        justify-content: flex-start;
        padding-top: 40px;
        transition: 0.4s ease;
    }
    
    .header.scrolled .nav-menu {
        top: 70px;
        height: calc(100vh - 70px);
    }
    
    .nav-menu.active {
        left: 0;
    }
    
    .nav-list {
        flex-direction: column;
        text-align: center;
        gap: 20px;
    }
    
    .nav-link {
        font-size: 1.25rem;
    }
    
    .nav-actions .btn {
        display: none;
    }
    
    .hero-title {
        font-size: 2.2rem;
    }
    
    .hero-subtitle {
        font-size: 1.1rem;
    }

    .hero {
        min-height: auto;
        padding-bottom: 60px;
    }
    
    .hero-buttons {
        flex-direction: column;
    }
    
    .cta-buttons {
        flex-direction: column;
    }
    
    .form-row {
        flex-direction: column;
        gap: 0;
    }
    
    .form-group.half {
        width: 100%;
    }
    
    .footer-bottom .container {
        flex-direction: column;
        text-align: center;
        gap: 15px;
    }
    
    .whatsapp-float {
        bottom: 20px;
        right: 20px;
        width: 50px;
        height: 50px;
        font-size: 25px;
    }
    
    .service-features {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 576px) {
    .quick-blocks, .services-grid, .gallery-grid, .footer-grid, .benefits-grid {
        grid-template-columns: 1fr;
    }
    
    .section-title {
        font-size: 1.8rem;
    }
    
    .contact-form-wrapper {
        padding: 20px;
    }

    .about-image .experience-badge {
        padding: 15px;
    }
    
    .about-image .experience-badge .number {
        font-size: 2rem;
    }
    
    .hero-title {
        font-size: 1.8rem;
    }
}