/* =========================================
   JGF Construtora - CSS Styles
   ========================================= */

/* --- CSS Variables (Design Tokens) --- */
:root {
    /* Colors */
    --color-primary: #0B1B3D; /* Navy Blue */
    --color-primary-light: #1A3163;
    --color-secondary: #D4AF37; /* Gold */
    --color-secondary-hover: #b8972e;
    --color-dark: #333333; /* Charcoal Gray */
    --color-darker: #1A1A1A;
    --color-light: #F5F7FA;
    --color-white: #FFFFFF;
    
    /* Typography */
    --font-heading: 'Montserrat', sans-serif;
    --font-body: 'Inter', sans-serif;
    
    /* Spacing & Layout */
    --section-padding: 6rem 0;
    --container-width: 1200px;
    
    /* Transitions */
    --transition-fast: 0.2s ease;
    --transition-normal: 0.3s ease-in-out;
    --transition-slow: 0.5s cubic-bezier(0.25, 0.8, 0.25, 1);
}

/* --- Reset & Global --- */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
}

body {
    font-family: var(--font-body);
    font-size: 16px;
    color: var(--color-dark);
    line-height: 1.6;
    background-color: var(--color-white);
    overflow-x: hidden;
}

h1, h2, h3, h4, h5, h6 {
    font-family: var(--font-heading);
    color: var(--color-primary);
    line-height: 1.2;
}

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

ul {
    list-style: none;
}

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

/* --- Typography Utilities --- */
.text-center { text-align: center; }
.text-gold { color: var(--color-secondary) !important; }
.text-white { color: var(--color-white) !important; }
.text-light { color: #E0E0E0 !important; }

/* --- Layout Utilities --- */
.container {
    width: 100%;
    max-width: var(--container-width);
    margin: 0 auto;
    padding: 0 2rem;
}

.section {
    padding: var(--section-padding);
}

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

.grid-2 {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
    align-items: center;
}

.grid-4 {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 2rem;
}

.section-tag {
    display: inline-block;
    font-size: 0.85rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 2px;
    color: var(--color-secondary);
    margin-bottom: 1rem;
    position: relative;
    padding-left: 2rem;
}

.section-tag::before {
    content: '';
    position: absolute;
    left: 0;
    top: 50%;
    transform: translateY(-50%);
    width: 20px;
    height: 2px;
    background-color: var(--color-secondary);
}

.section-title {
    font-size: 2.5rem;
    font-weight: 700;
    margin-bottom: 1.5rem;
}

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

/* --- Buttons --- */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 1rem 2.5rem;
    font-family: var(--font-heading);
    font-weight: 600;
    font-size: 1rem;
    border: none;
    border-radius: 4px;
    cursor: pointer;
    transition: var(--transition-normal);
    text-transform: uppercase;
    letter-spacing: 1px;
}

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

.btn-primary:hover {
    background-color: var(--color-secondary-hover);
    transform: translateY(-3px);
    box-shadow: 0 10px 20px rgba(0,0,0,0.1);
}

.btn-block {
    width: 100%;
    padding: 1.2rem;
}

.btn-block i {
    margin-left: 0.5rem;
}

/* --- Header & Navigation --- */
.header {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    z-index: 1000;
    padding: 1.5rem 0;
    transition: var(--transition-normal);
}

.header.scrolled {
    background-color: rgba(11, 27, 61, 0.95);
    backdrop-filter: blur(10px);
    padding: 1rem 0;
    box-shadow: 0 2px 20px rgba(0,0,0,0.2);
}

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

.logo {
    display: flex;
    flex-direction: column;
    color: var(--color-white);
}

.logo-text {
    font-family: var(--font-heading);
    font-size: 2rem;
    font-weight: 800;
    letter-spacing: 2px;
    line-height: 1;
}

.logo-subtext {
    font-size: 0.75rem;
    font-weight: 400;
    letter-spacing: 3px;
    text-transform: uppercase;
    color: var(--color-secondary);
}

.nav-links {
    display: flex;
    gap: 2.5rem;
}

.nav-links a {
    color: var(--color-white);
    font-weight: 500;
    font-size: 0.95rem;
    position: relative;
}

.nav-links a::after {
    content: '';
    position: absolute;
    bottom: -5px;
    left: 0;
    width: 0;
    height: 2px;
    background-color: var(--color-secondary);
    transition: var(--transition-normal);
}

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

.menu-toggle {
    display: none;
    color: var(--color-white);
    cursor: pointer;
}

/* --- Hero Section --- */
.hero {
    position: relative;
    height: 100vh;
    min-height: 600px;
    display: flex;
    align-items: center;
    background-image: url('assets/images/hero_building_premium_1772897676063.png');
    background-size: cover;
    background-position: center;
    background-attachment: fixed;
}

.hero-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(to right, rgba(11, 27, 61, 0.9) 0%, rgba(11, 27, 61, 0.4) 100%);
}

.hero-content {
    position: relative;
    z-index: 2;
    max-width: 800px;
}

.hero-title {
    color: var(--color-white);
    font-size: 4rem;
    font-weight: 800;
    margin-bottom: 1.5rem;
}

.hero-subtitle {
    color: var(--color-light);
    font-size: 1.2rem;
    font-weight: 300;
    margin-bottom: 3rem;
    max-width: 600px;
    font-family: var(--font-heading);
}

/* --- Sobre Nós Section --- */
.sobre p {
    margin-bottom: 1.5rem;
    font-size: 1.1rem;
    color: #555;
}

.stats-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 2rem;
    margin-top: 3rem;
    padding-top: 2rem;
    border-top: 1px solid #eee;
}

.stat-number {
    display: block;
    font-family: var(--font-heading);
    font-size: 3rem;
    font-weight: 800;
    color: var(--color-secondary);
    line-height: 1;
    margin-bottom: 0.5rem;
}

.stat-label {
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 1px;
    font-size: 0.9rem;
}

.rounded-image {
    border-radius: 8px;
    box-shadow: 0 20px 40px rgba(0,0,0,0.1);
}

/* --- Serviços Section --- */
.service-card {
    background-color: var(--color-white);
    padding: 3rem 2rem;
    border-radius: 8px;
    box-shadow: 0 10px 30px rgba(0,0,0,0.05);
    transition: var(--transition-normal);
    position: relative;
    overflow: hidden;
    z-index: 1;
}

.service-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 4px;
    background-color: var(--color-secondary);
    transform: scaleX(0);
    transform-origin: left;
    transition: var(--transition-normal);
    z-index: -1;
}

.service-card:hover {
    transform: translateY(-10px);
    box-shadow: 0 20px 40px rgba(0,0,0,0.1);
}

.service-card:hover::before {
    transform: scaleX(1);
}

.service-icon {
    width: 60px;
    height: 60px;
    background-color: rgba(212, 175, 55, 0.1);
    color: var(--color-secondary);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 1.5rem;
}

.service-icon i {
    width: 28px;
    height: 28px;
}

.service-card h3 {
    margin-bottom: 1rem;
    font-size: 1.3rem;
}

.service-card p {
    color: #666;
    font-size: 0.95rem;
}

/* --- Portfólio Section --- */
.portfolio-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(400px, 1fr));
    gap: 2rem;
}

.portfolio-item {
    position: relative;
    border-radius: 8px;
    overflow: hidden;
    aspect-ratio: 4/3;
    cursor: pointer;
}

.portfolio-item img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.8s ease;
}

.portfolio-overlay {
    position: absolute;
    bottom: 0;
    left: 0;
    width: 100%;
    padding: 3rem 2rem 2rem;
    background: linear-gradient(to top, rgba(11,27,61,0.9) 0%, rgba(11,27,61,0) 100%);
    color: var(--color-white);
    transform: translateY(20px);
    opacity: 0;
    transition: var(--transition-normal);
}

.portfolio-overlay h3 {
    color: var(--color-white);
    font-size: 1.5rem;
    margin-bottom: 0.3rem;
}

.portfolio-overlay p {
    color: var(--color-secondary);
    font-size: 0.9rem;
    text-transform: uppercase;
    letter-spacing: 1px;
}

.portfolio-item:hover img {
    transform: scale(1.05);
}

.portfolio-item:hover .portfolio-overlay {
    transform: translateY(0);
    opacity: 1;
}

/* --- Contato Section --- */
.contact-method {
    display: flex;
    align-items: flex-start;
    gap: 1.5rem;
    margin-bottom: 2rem;
    color: var(--color-white);
}

.contact-method i {
    color: var(--color-secondary);
    width: 32px;
    height: 32px;
    flex-shrink: 0;
}

.contact-method h4 {
    color: var(--color-white);
    margin-bottom: 0.3rem;
}

.contact-method p {
    color: #aaa;
    font-size: 0.95rem;
}

.form-container {
    background-color: var(--color-white);
    padding: 3rem;
    border-radius: 8px;
    box-shadow: 0 20px 50px rgba(0,0,0,0.2);
}

.form-container h3 {
    margin-bottom: 2rem;
    font-size: 1.8rem;
}

.form-group {
    margin-bottom: 1.5rem;
}

.form-group label {
    display: block;
    font-size: 0.9rem;
    font-weight: 600;
    margin-bottom: 0.5rem;
    color: var(--color-primary);
}

.form-group input,
.form-group select,
.form-group textarea {
    width: 100%;
    padding: 1rem;
    border: 1px solid #ddd;
    border-radius: 4px;
    font-family: var(--font-body);
    font-size: 1rem;
    transition: var(--transition-fast);
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--color-secondary);
    box-shadow: 0 0 0 3px rgba(212, 175, 55, 0.1);
}

/* --- Footer --- */
.footer {
    background-color: var(--color-darker);
    color: #888;
    text-align: center;
    padding: 2rem 0;
    font-size: 0.9rem;
}

/* --- WhatsApp Float Button --- */
.whatsapp-float {
    position: fixed;
    width: 60px;
    height: 60px;
    bottom: 40px;
    right: 40px;
    background-color: #25d366;
    color: #FFF;
    border-radius: 50px;
    text-align: center;
    font-size: 30px;
    box-shadow: 0 10px 20px rgba(37, 211, 102, 0.4);
    z-index: 100;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: var(--transition-normal);
}

.whatsapp-float:hover {
    transform: translateY(-5px) scale(1.05);
    box-shadow: 0 15px 25px rgba(37, 211, 102, 0.5);
    background-color: #1ebe5d;
}

.whatsapp-float::before {
    content: '';
    position: absolute;
    width: 100%;
    height: 100%;
    background-color: rgba(37, 211, 102, 0.5);
    border-radius: 50%;
    z-index: -1;
    animation: pulse 2s infinite;
}

@keyframes pulse {
    0% { transform: scale(1); opacity: 1; }
    100% { transform: scale(1.5); opacity: 0; }
}

/* --- Animations --- */
.animate-up {
    opacity: 0;
    transform: translateY(30px);
    animation: fadeInUp 0.8s forwards ease-out;
}

.delay-1 { animation-delay: 0.2s; }
.delay-2 { animation-delay: 0.4s; }

@keyframes fadeInUp {
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.fade-in {
    opacity: 0;
    transform: translateY(20px);
    transition: opacity 0.8s ease-out, transform 0.8s ease-out;
}

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

/* --- Responsive --- */
@media (max-width: 992px) {
    .grid-2 {
        grid-template-columns: 1fr;
        gap: 3rem;
    }
    
    .hero-title {
        font-size: 3rem;
    }
}

@media (max-width: 768px) {
    .nav-links {
        display: none; /* In a real app we'd add a mobile menu toggle JS here */
    }
    
    .menu-toggle {
        display: block;
    }
    
    .hero-title {
        font-size: 2.5rem;
    }
    
    .hero-subtitle {
        font-size: 1rem;
    }
    
    .section-title {
        font-size: 2rem;
    }
    
    .whatsapp-float {
        bottom: 20px;
        right: 20px;
        width: 50px;
        height: 50px;
    }
    .portfolio-grid {
        grid-template-columns: 1fr;
    }
}