/* Estilos Globais */
:root {
    --primary-color: #ff0000;
    --secondary-color: #000000;
    --accent-color: #ffffff;
    --text-color: #333333;
    --light-gray: #f5f5f5;
    --dark-gray: #444444;
    --transition: all 0.3s ease;
}

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

body {
    font-family: 'Roboto', sans-serif;
    line-height: 1.6;
    color: var(--text-color);
    overflow-x: hidden;
}

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

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

a:hover {
    color: var(--secondary-color);
}

ul {
    list-style: none;
}

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

.btn {
    display: inline-block;
    background-color: var(--primary-color);
    color: var(--accent-color);
    padding: 12px 25px;
    border: none;
    border-radius: 5px;
    cursor: pointer;
    transition: var(--transition);
    font-weight: 500;
    text-align: center;
}

.btn:hover {
    background-color: var(--secondary-color);
    color: var(--accent-color);
    transform: translateY(-3px);
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.1);
}

.section-title {
    text-align: center;
    margin-bottom: 50px;
}

.section-title h2 {
    font-size: 2.5rem;
    margin-bottom: 15px;
    position: relative;
    display: inline-block;
}

.section-title h2::after {
    content: '';
    position: absolute;
    bottom: -10px;
    left: 50%;
    transform: translateX(-50%);
    width: 80px;
    height: 3px;
    background-color: var(--primary-color);
}

.section-title p {
    color: var(--dark-gray);
    font-size: 1.1rem;
}

/* Header */
header {
    background-color: var(--secondary-color);
    color: var(--accent-color);
    padding: 15px 0;
    position: fixed;
    width: 100%;
    top: 0;
    left: 0;
    z-index: 1000;
    transition: var(--transition);
}

header.scrolled {
    padding: 10px 0;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.1);
}

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

.logo {
    height: 50px;
    width: auto;
}

.nav-menu {
    display: flex;
}

.nav-menu li {
    margin-left: 25px;
}

.nav-menu a {
    color: var(--accent-color);
    font-weight: 500;
    position: relative;
    padding: 5px 0;
}

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

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

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

/* Hero Section */
.hero {
    height: 100vh;
    background: linear-gradient(rgba(0, 0, 0, 0.7), rgba(0, 0, 0, 0.7)), url('../img/subestacao_eletrica.jpeg');
    background-size: cover;
    background-position: center;
    background-attachment: fixed;
    display: flex;
    align-items: center;
    text-align: center;
    color: var(--accent-color);
    margin-top: 0;
    position: relative;
}

.hero-content {
    max-width: 800px;
    margin: 0 auto;
    padding: 0 20px;
}

.hero-content h1 {
    font-size: 3.5rem;
    margin-bottom: 20px;
    animation: fadeInDown 1s ease;
}

.hero-content p {
    font-size: 1.2rem;
    margin-bottom: 30px;
    animation: fadeInUp 1s ease;
}

.hero-btn {
    animation: fadeIn 1.5s ease;
}

/* About Section */
.about {
    padding: 100px 0;
    position: relative;
    background-color: var(--accent-color);
}

.about-content {
    max-width: 800px;
    margin: 0 auto;
    text-align: center;
}

.about-content p {
    margin-bottom: 20px;
    font-size: 1.1rem;
}

.about-shape {
    position: absolute;
    bottom: 0;
    left: 0;
    width: 100%;
    height: 100px;
    background-color: var(--light-gray);
    clip-path: polygon(0 100%, 100% 100%, 100% 0);
    z-index: 1;
}

/* Mission Section */
.mission {
    padding: 100px 0;
    background-color: var(--light-gray);
}

.tab-links {
    display: flex;
    justify-content: center;
    margin-bottom: 30px;
}

.tab-link {
    background-color: var(--accent-color);
    color: var(--text-color);
    border: none;
    padding: 12px 25px;
    margin: 0 10px;
    cursor: pointer;
    border-radius: 5px;
    font-weight: 500;
    transition: var(--transition);
}

.tab-link.active, .tab-link:hover {
    background-color: var(--primary-color);
    color: var(--accent-color);
}

.tab-content {
    max-width: 800px;
    margin: 0 auto;
    background-color: var(--accent-color);
    padding: 30px;
    border-radius: 10px;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.05);
}

.tab-item {
    display: none;
}

.tab-item.active {
    display: block;
    animation: fadeIn 0.5s ease;
}

.tab-item h3 {
    margin-bottom: 15px;
    color: var(--primary-color);
}

.tab-item p {
    margin-bottom: 15px;
}

/* Awards Section */
.awards {
    padding: 100px 0;
    background-color: var(--accent-color);
}

.awards-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 30px;
}

.award-item {
    background-color: var(--light-gray);
    border-radius: 10px;
    overflow: hidden;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.05);
    transition: var(--transition);
}

.award-item:hover {
    transform: translateY(-10px);
    box-shadow: 0 15px 30px rgba(0, 0, 0, 0.1);
}

.award-item img {
    width: 100%;
    height: 200px;
    object-fit: cover;
}

.award-content {
    padding: 20px;
}

.award-content h3 {
    margin-bottom: 10px;
    color: var(--secondary-color);
}

.award-content p {
    color: var(--dark-gray);
}

/* Clients & Services Section */
.clients-services {
    padding: 100px 0;
    background-color: var(--light-gray);
}

.service-table {
    width: 100%;
    border-collapse: collapse;
    margin-top: 30px;
    background-color: var(--accent-color);
    border-radius: 10px;
    overflow: hidden;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.05);
}

.service-table th, .service-table td {
    padding: 15px;
    text-align: left;
    border-bottom: 1px solid var(--light-gray);
}

.service-table th {
    background-color: var(--secondary-color);
    color: var(--accent-color);
}

.service-table tr:hover {
    background-color: rgba(255, 0, 0, 0.05);
}

/* Expertise Section */
.expertise {
    padding: 100px 0;
    background-color: var(--accent-color);
}

.expertise-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 30px;
}

.expertise-item {
    background-color: var(--light-gray);
    padding: 30px;
    border-radius: 10px;
    text-align: center;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.05);
    transition: var(--transition);
    transform: translateY(50px);
    opacity: 0;
}

.expertise-item.animate {
    transform: translateY(0);
    opacity: 1;
}

.expertise-item:hover {
    transform: translateY(-10px);
    box-shadow: 0 15px 30px rgba(0, 0, 0, 0.1);
}

.expertise-item i {
    font-size: 3rem;
    color: var(--primary-color);
    margin-bottom: 20px;
}

.expertise-item h3 {
    margin-bottom: 15px;
    color: var(--secondary-color);
}

.expertise-item p {
    color: var(--dark-gray);
}

/* Projects Section */
.projects {
    padding: 100px 0;
    background-color: var(--light-gray);
}

.project-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 30px;
}

.project-item {
    position: relative;
    border-radius: 10px;
    overflow: hidden;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.05);
    height: 250px;
    transform: translateY(50px);
    opacity: 0;
    transition: var(--transition);
}

.project-item.animate {
    transform: translateY(0);
    opacity: 1;
}

.project-item img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: var(--transition);
}

.project-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(rgba(0, 0, 0, 0.7), rgba(0, 0, 0, 0.7));
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    padding: 20px;
    text-align: center;
    color: var(--accent-color);
    opacity: 0;
    transition: var(--transition);
}

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

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

.project-overlay h3 {
    margin-bottom: 10px;
    font-size: 1.5rem;
}

/* Sustainability Section */
.sustainability {
    padding: 100px 0;
    background-color: var(--accent-color);
}

.sustainability-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 50px;
    align-items: center;
}

.sustainability-image img {
    width: 100%;
    border-radius: 10px;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.1);
}

.sustainability-text h3 {
    margin-bottom: 20px;
    color: var(--secondary-color);
    font-size: 1.8rem;
}

.sustainability-text p {
    margin-bottom: 20px;
    color: var(--dark-gray);
}

/* Values Section */
.values {
    padding: 80px 0;
    background-color: var(--secondary-color);
    color: var(--accent-color);
    text-align: center;
}

.values i {
    font-size: 3rem;
    margin-bottom: 20px;
    color: var(--primary-color);
}

.values h2 {
    font-size: 2rem;
    max-width: 800px;
    margin: 0 auto;
}

/* Partners Section */
.partners {
    padding: 100px 0;
    background-color: var(--light-gray);
}

.partner-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
    gap: 30px;
    align-items: center;
}

.partner-item {
    background-color: var(--accent-color);
    padding: 20px;
    border-radius: 10px;
    text-align: center;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.05);
    transition: var(--transition);
}

.partner-item:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 20px rgba(0, 0, 0, 0.1);
}

.partner-item img {
    max-width: 100%;
    max-height: 80px;
    filter: grayscale(100%);
    transition: var(--transition);
}

.partner-item:hover img {
    filter: grayscale(0%);
}

/* Contact Section */
.contact {
    padding: 100px 0;
    background-color: var(--accent-color);
}

.contact-content {
    display: grid;
    grid-template-columns: 1fr 2fr;
    gap: 50px;
}

.contact-info {
    background-color: var(--secondary-color);
    color: var(--accent-color);
    padding: 30px;
    border-radius: 10px;
}

.contact-info a {
    text-decoration: --accent-color;
    color: var(--secondary-color-color);
    transition: var(--transition);
}

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

.contact-info h3 {
    margin-bottom: 20px;
    color: var(--primary-color);
}

.contact-info p {
    margin-bottom: 15px;
    display: flex;
    align-items: center;
}

.contact-info i {
    margin-right: 10px;
    color: var(--primary-color);
}

.contact-form {
    background-color: var(--light-gray);
    padding: 30px;
    border-radius: 10px;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.05);
}

.contact-form h3 {
    margin-bottom: 20px;
    color: var(--secondary-color);
}

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

.form-group input, .form-group textarea {
    width: 100%;
    padding: 12px 15px;
    border: 1px solid #eee;
    border-radius: 8px;
    font-size: 16px;
    transition: var(--transition);
}

.form-group input:focus, .form-group textarea:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 2px rgba(255, 0, 0, 0.1);
}

.form-group input.error, .form-group textarea.error {
    border-color: #ff3333;
}

/* Footer */
footer {
    background-color: var(--secondary-color);
    color: var(--accent-color);
    padding: 80px 0 20px;
}

.footer-content {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 30px;
    margin-bottom: 50px;
}

.footer-column h3 {
    margin-bottom: 20px;
    color: var(--primary-color);
    font-size: 1.3rem;
}

.footer-column p, .footer-column li {
    margin-bottom: 10px;
    color: #aaa;
}

.footer-column a {
    color: #aaa;
    transition: var(--transition);
}

.footer-column a:hover {
    color: var(--primary-color);
}

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

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

.social-icons a:hover {
    background-color: var(--primary-color);
    transform: translateY(-5px);
}

.copyright {
    text-align: center;
    padding-top: 20px;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    color: #aaa;
    font-size: 0.9rem;
}

/* Estilos para a seção de clientes */
.clients-section {
    padding: 80px 0;
    background-color: #f8f8f8;
    text-align: center;
}

.clients-section h2 {
    font-size: 2.5rem;
    margin-bottom: 40px;
    color: #000;
    font-weight: 700;
}

.clients-section p {
    font-size: 1.1rem;
    margin-bottom: 40px;
    max-width: 800px;
    margin-left: auto;
    margin-right: auto;
    color: #333;
}

.clients-grid {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    align-items: center;
    gap: 30px;
    max-width: 1200px;
    margin: 0 auto;
}

.client-item {
    background-color: #fff;
    padding: 20px;
    border-radius: 8px;
    box-shadow: 0 4px 8px rgba(0, 0, 0, 0.05);
    width: 200px;
    height: 120px;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.client-item:hover {
    transform: translateY(-5px);
    box-shadow: 0 8px 16px rgba(0, 0, 0, 0.1);
}

.client-item img {
    max-width: 80%;
    max-height: 80%;
    object-fit: contain;
}

@media (max-width: 768px) {
    .clients-grid {
        gap: 15px;
    }
    
    .client-item {
        width: 150px;
        height: 100px;
    }
}

@media (max-width: 480px) {
    .client-item {
        width: 130px;
        height: 90px;
    }
}


/* Animations */
@keyframes fadeIn {
    from {
        opacity: 0;
    }
    to {
        opacity: 1;
    }
}

@keyframes fadeInDown {
    from {
        opacity: 0;
        transform: translateY(-30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* Responsive Styles */
@media screen and (max-width: 992px) {
    .section-title h2 {
        font-size: 2rem;
    }
    
    .hero-content h1 {
        font-size: 2.5rem;
    }
    
    .sustainability-content {
        grid-template-columns: 1fr;
    }
    
    .contact-content {
        grid-template-columns: 1fr;
    }
}

@media screen and (max-width: 768px) {
    .mobile-toggle {
        display: block;
    }
    
    .nav-menu {
        position: fixed;
        top: 80px;
        left: -100%;
        width: 100%;
        background-color: var(--secondary-color);
        flex-direction: column;
        text-align: center;
        transition: var(--transition);
        box-shadow: 0 10px 15px rgba(0, 0, 0, 0.1);
        padding: 20px 0;
    }
    
    .nav-menu.active {
        left: 0;
    }
    
    .nav-menu li {
        margin: 15px 0;
    }
    
    .hero-content h1 {
        font-size: 2rem;
    }
    
    .tab-links {
        flex-direction: column;
    }
    
    .tab-link {
        margin: 5px 0;
    }
}

@media screen and (max-width: 576px) {
    .section-title h2 {
        font-size: 1.8rem;
    }
    
    .hero-content h1 {
        font-size: 1.8rem;
    }
    
    .service-table th, .service-table td {
        padding: 10px;
        font-size: 0.9rem;
    }
}