/* Estilos Base - Tema Industrial Avançado */
:root {
    --metal-dark: #121212;
    --metal-medium: #1e1e1e;
    --metal-light: #2d2d2d;
    --metal-lighter: #3d3d3d;
    --weld-orange: #ff6b00;
    --weld-orange-light: #ff8a3d;
    --weld-yellow: #ff9a00;
    --weld-blue: #0066cc;
    --rust-red: #8b0000;
    --text-metal: #e0e0e0;
    --text-light: #ffffff;
    --text-gray: #b0b0b0;
    --success-green: #28a745;
}

/* Reset e Estilos Globais */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
}

body {
    font-family: 'Oswald', 'Roboto Condensed', sans-serif;
    line-height: 1.6;
    color: var(--text-metal);
    background-color: var(--metal-dark);
    overflow-x: hidden;
    position: relative;
}

h1, h2, h3, h4, h5, h6 {
    font-family: 'Montserrat', 'Oswald', sans-serif;
    font-weight: 700;
    line-height: 1.2;
}

a {
    text-decoration: none;
    color: inherit;
    transition: all 0.3s ease;
}

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

ul {
    list-style: none;
}

.container {
    width: 90%;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 15px;
}

section {
    padding: 100px 0;
    position: relative;
}

/* Preloader */
.metal-preloader {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: var(--metal-dark);
    display: flex;
    justify-content: center;
    align-items: center;
    z-index: 9999;
    transition: opacity 0.5s ease;
}

.metal-preloader.fade-out {
    opacity: 0;
    pointer-events: none;
}

.weld-loader {
    position: relative;
    width: 80px;
    height: 80px;
}

.weld-loader .spark {
    position: absolute;
    width: 16px;
    height: 16px;
    background-color: var(--weld-orange);
    border-radius: 50%;
    animation: weldLoader 1.5s cubic-bezier(0, 0.2, 0.8, 1) infinite;
    box-shadow: 0 0 20px var(--weld-orange);
}

.weld-loader .spark:nth-child(1) {
    animation-delay: 0s;
    top: 0;
    left: 32px;
}

.weld-loader .spark:nth-child(2) {
    animation-delay: -0.5s;
    top: 32px;
    right: 0;
}

.weld-loader .spark:nth-child(3) {
    animation-delay: -1s;
    bottom: 0;
    left: 32px;
}

.weld-loader .spark:nth-child(4) {
    animation-delay: -1.5s;
    top: 32px;
    left: 0;
}

@keyframes weldLoader {
    0%, 100% {
        transform: scale(1);
        opacity: 1;
    }
    50% {
        transform: scale(0.3);
        opacity: 0.5;
    }
}

/* Header */
.metal-header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    background: rgba(18, 18, 18, 0.98);
    backdrop-filter: blur(10px);
    padding: 15px 0;
    transition: all 0.3s ease;
    border-bottom: 1px solid rgba(255, 107, 0, 0.2);
}

.metal-header.scrolled {
    padding: 10px 0;
    background: rgba(18, 18, 18, 0.95);
    box-shadow: 0 5px 20px rgba(0, 0, 0, 0.3);
}

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

.logo-container {
    display: flex;
    align-items: center;
    transition: transform 0.3s ease;
}

.logo-container:hover {
    transform: scale(1.02);
}

.logo-img {
    height: 70px;
    transition: all 0.3s ease;
    filter: drop-shadow(0 0 5px rgba(255, 107, 0, 0.5));
}

.logo-text {
    display: flex;
    flex-direction: column;
    margin-left: 15px;
}

.logo-title {
    font-size: 1.3rem;
    font-weight: 700;
    color: var(--text-light);
    text-shadow: 0 0 8px rgba(255, 154, 0, 0.3);
    letter-spacing: 1px;
    line-height: 1.2;
}

.logo-subtitle {
    font-size: 0.9rem;
    color: var(--weld-yellow);
    letter-spacing: 0.5px;
    font-weight: 500;
}

/* Menu de Navegação */
.welded-menu {
    display: flex;
    gap: 25px;
}

.weld-link {
    position: relative;
    padding: 8px 0;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 1px;
    font-size: 0.95rem;
    color: var(--text-metal);
    transition: all 0.3s ease;
}

.weld-link:hover {
    color: var(--weld-yellow);
}

.weld-link::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--weld-orange);
    transition: width 0.3s ease;
}

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

.mobile-menu-toggle {
    display: none;
    background: transparent;
    color: var(--text-light);
    border: none;
    font-size: 1.8rem;
    cursor: pointer;
    transition: all 0.3s ease;
    padding: 5px 10px;
    border-radius: 4px;
}

.mobile-menu-toggle:hover {
    color: var(--weld-yellow);
}

.mobile-menu-toggle.active {
    color: var(--weld-orange);
}

/* Hero Section */
.hero-welding {
    height: 100vh;
    min-height: 700px;
    display: flex;
    align-items: center;
    position: relative;
    overflow: hidden;
    margin-top: 0;
}

.hero-video {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    object-fit: cover;
    z-index: -1;
    opacity: 0.4;
}

.welding-sparks {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: -1;
    background: radial-gradient(ellipse at center, rgba(255,107,0,0.1) 0%, rgba(0,0,0,0) 70%);
}

.hero-content {
    max-width: 800px;
    margin: 0 auto;
    padding: 50px;
    background: rgba(26, 26, 26, 0.85);
    border-left: 4px solid var(--weld-orange);
    position: relative;
    z-index: 1;
    backdrop-filter: blur(5px);
}

.hero-content h1 {
    font-size: 2.8rem;
    margin-bottom: 20px;
    line-height: 1.2;
    text-shadow: 0 0 15px rgba(255, 107, 0, 0.5);
}

.hero-content p {
    font-size: 1.3rem;
    margin-bottom: 30px;
    color: var(--text-light);
}

.hero-badges {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
    margin-bottom: 30px;
}

.weld-badge {
    background: rgba(255, 107, 0, 0.2);
    color: var(--weld-yellow);
    padding: 8px 15px;
    border-radius: 30px;
    font-size: 0.9rem;
    font-weight: 600;
    border: 1px solid var(--weld-orange);
    text-shadow: 0 0 5px rgba(255, 154, 0, 0.3);
}

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

.scroll-down {
    position: absolute;
    bottom: 30px;
    left: 50%;
    transform: translateX(-50%);
    color: var(--text-light);
    font-size: 1.5rem;
    animation: bounce 2s infinite;
    cursor: pointer;
    z-index: 2;
}

@keyframes bounce {
    0%, 20%, 50%, 80%, 100% {
        transform: translateY(0) translateX(-50%);
    }
    40% {
        transform: translateY(-20px) translateX(-50%);
    }
    60% {
        transform: translateY(-10px) translateX(-50%);
    }
}

/* Destaques */
.metal-highlights {
    background-color: var(--metal-medium);
    padding: 70px 0;
    border-top: 1px solid rgba(255, 107, 0, 0.1);
    border-bottom: 1px solid rgba(255, 107, 0, 0.1);
}

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

.highlight-card {
    background: rgba(30, 30, 30, 0.7);
    padding: 30px;
    border-radius: 5px;
    text-align: center;
    transition: all 0.3s ease;
    border-bottom: 3px solid transparent;
}

.highlight-card:hover {
    transform: translateY(-10px);
    border-bottom-color: var(--weld-orange);
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.3);
}

.highlight-icon {
    font-size: 2.5rem;
    color: var(--weld-yellow);
    margin-bottom: 20px;
}

.highlight-card h3 {
    font-size: 1.3rem;
    margin-bottom: 15px;
    color: var(--text-light);
}

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

/* Seções Comuns */
.section-title {
    text-align: center;
    margin-bottom: 60px;
    position: relative;
}

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

.section-subtitle {
    color: var(--text-gray);
    font-size: 1.1rem;
    max-width: 700px;
    margin: 0 auto;
}

.weld-line {
    width: 100px;
    height: 3px;
    background: linear-gradient(90deg, var(--weld-orange), var(--weld-yellow), var(--weld-orange));
    margin: 15px auto 25px;
    box-shadow: 0 0 10px var(--weld-orange);
}

/* Serviços */
.metal-services {
    background-color: var(--metal-dark);
    position: relative;
    overflow: hidden;
}

.services-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 30px;
}

.service-card {
    background: linear-gradient(to bottom, var(--metal-medium), var(--metal-dark));
    border: 1px solid rgba(255, 107, 0, 0.1);
    transition: all 0.3s ease;
    position: relative;
    overflow: hidden;
}

.service-card:hover {
    transform: translateY(-10px);
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.5);
    border-color: rgba(255, 107, 0, 0.3);
}

.service-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(135deg, rgba(255, 107, 0, 0.05), transparent);
    z-index: 0;
}

.service-icon {
    font-size: 2.5rem;
    color: var(--weld-yellow);
    padding: 25px;
    text-align: center;
    background: rgba(0, 0, 0, 0.2);
    position: relative;
}

.service-content {
    padding: 25px;
    position: relative;
}

.service-content h3 {
    font-size: 1.4rem;
    margin-bottom: 15px;
    color: var(--weld-yellow);
    position: relative;
    padding-bottom: 10px;
}

.service-content h3::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 50px;
    height: 2px;
    background: var(--weld-orange);
}

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

.service-features {
    margin-top: 20px;
}

.service-features li {
    margin-bottom: 10px;
    display: flex;
    align-items: center;
    color: var(--text-metal);
    font-size: 0.95rem;
}

.service-features i {
    color: var(--weld-orange);
    margin-right: 10px;
    font-size: 0.8rem;
}

/* Especialidades */
.metal-specialties {
    background-color: var(--metal-medium);
    position: relative;
}

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

.specialties-content {
    display: grid;
    gap: 30px;
}

.specialty-item {
    display: flex;
    gap: 20px;
}

.specialty-icon {
    font-size: 1.8rem;
    color: var(--weld-orange);
    min-width: 50px;
    padding-top: 5px;
}

.specialty-text h3 {
    font-size: 1.3rem;
    margin-bottom: 10px;
    color: var(--text-light);
}

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

.specialties-image {
    position: relative;
}

.image-frame {
    border: 5px solid var(--metal-light);
    position: relative;
    overflow: hidden;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.5);
}

.image-frame img {
    width: 100%;
    height: auto;
    display: block;
    transition: transform 0.5s ease;
}

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

.image-badge {
    position: absolute;
    bottom: 20px;
    left: 20px;
    background: rgba(0, 0, 0, 0.7);
    color: var(--weld-yellow);
    padding: 10px 15px;
    border-radius: 4px;
    font-weight: 600;
    border-left: 3px solid var(--weld-orange);
}

.image-badge i {
    margin-right: 8px;
}

/* Sobre */
.metal-about {
    background-color: var(--metal-dark);
    position: relative;
}

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

.about-content {
    padding: 40px;
    background: linear-gradient(to bottom, var(--metal-medium), var(--metal-dark));
    border-left: 4px solid var(--weld-orange);
    position: relative;
}

.about-content h2 {
    font-size: 2.2rem;
    margin-bottom: 20px;
}

.about-content p {
    margin-bottom: 20px;
    color: var(--text-metal);
    font-size: 1.05rem;
}

.experience-timeline {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 20px;
    margin: 30px 0;
}

.timeline-item {
    display: flex;
    gap: 15px;
    align-items: center;
}

.timeline-year {
    font-size: 2rem;
    font-weight: 700;
    color: var(--weld-orange);
    min-width: 70px;
}

.timeline-content h4 {
    font-size: 1.1rem;
    margin-bottom: 5px;
    color: var(--text-light);
}

.timeline-content p {
    font-size: 0.9rem;
    color: var(--text-gray);
    margin: 0;
}

.metal-badge {
    background: rgba(0, 0, 0, 0.3);
    padding: 20px;
    border-left: 3px solid var(--weld-orange);
    margin-top: 30px;
}

.metal-badge p {
    margin: 12px 0;
    display: flex;
    align-items: center;
    color: var(--text-metal);
}

.metal-badge i {
    margin-right: 12px;
    color: var(--weld-yellow);
    font-size: 1.1rem;
}

.about-img {
    position: relative;
    border-radius: 5px;
    overflow: hidden;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.5);
    height: 80%;
    min-height: 300px;
}

.about-img img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    display: block;
}

.experience-label {
    position: absolute;
    top: 30px;
    right: 30px;
    background: var(--weld-orange);
    color: var(--metal-dark);
    padding: 15px;
    text-align: center;
    font-weight: 700;
    border-radius: 5px;
    display: flex;
    flex-direction: column;
    line-height: 1.2;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.3);
}

.experience-label span:first-child {
    font-size: 1.5rem;
}

/* Projetos */
.metal-projects {
    background-color: var(--metal-medium);
    position: relative;
}

.projects-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 30px;
    margin-top: 50px;
}

.project-card {
    position: relative;
    overflow: hidden;
    height: 250px;
    border-radius: 5px;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.3);
    transition: all 0.3s ease;
}

.project-card:hover {
    transform: translateY(-10px);
    box-shadow: 0 15px 30px rgba(0, 0, 0, 0.5);
}

.project-image {
    width: 100%;
    height: 100%;
    position: relative;
}

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

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

.project-overlay {
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    background: linear-gradient(to top, rgba(0,0,0,0.9), transparent);
    padding: 20px;
    color: var(--text-light);
    transform: translateY(100%);
    transition: transform 0.3s ease;
}

.project-card:hover .project-overlay {
    transform: translateY(0);
}

.project-overlay h3 {
    font-size: 1.3rem;
    margin-bottom: 5px;
}

.project-overlay p {
    font-size: 0.9rem;
    color: var(--text-gray);
    margin-bottom: 10px;
}

.project-badge {
    display: inline-block;
    background: var(--weld-orange);
    color: var(--metal-dark);
    padding: 5px 10px;
    border-radius: 3px;
    font-size: 0.8rem;
    font-weight: 600;
}

.projects-cta {
    text-align: center;
    margin-top: 50px;
}



/* Contato */
.metal-contact {
    background-color: var(--metal-medium);
    position: relative;
}

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

.contact-info {
    padding: 40px;
    background: linear-gradient(to bottom, var(--metal-medium), var(--metal-dark));
    border-left: 4px solid var(--weld-orange);
    position: relative;
}

.contact-info h3 {
    font-size: 1.8rem;
    margin-bottom: 30px;
    color: var(--text-light);
}

.contact-item {
    display: flex;
    gap: 15px;
    margin-bottom: 25px;
    align-items: flex-start;
}

.contact-item i {
    font-size: 1.3rem;
    color: var(--weld-orange);
    margin-top: 3px;
}

.contact-item h4 {
    font-size: 1.1rem;
    color: var(--weld-yellow);
    margin-bottom: 5px;
}

.contact-item p, .contact-item a {
    color: var(--text-metal);
    font-size: 0.95rem;
}

.contact-item a:hover {
    color: var(--weld-yellow);
}

.contact-social {
    margin-top: 40px;
}

.contact-social h4 {
    font-size: 1.1rem;
    color: var(--weld-yellow);
    margin-bottom: 15px;
}

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

.metal-social a {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 40px;
    height: 40px;
    background: rgba(255, 107, 0, 0.1);
    color: var(--text-metal);
    border-radius: 50%;
    font-size: 1.2rem;
    transition: all 0.3s ease;
}

.metal-social a:hover {
    background: var(--weld-orange);
    color: var(--metal-dark);
    transform: translateY(-5px);
}

.contact-form {
    padding: 40px;
    background: linear-gradient(to bottom, var(--metal-medium), var(--metal-dark));
    border-left: 4px solid var(--weld-orange);
    position: relative;
}

.contact-form h3 {
    font-size: 1.8rem;
    margin-bottom: 30px;
    color: var(--text-light);
}

.form-group {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 20px;
    margin-bottom: 20px;
}

.metal-input {
    position: relative;
    margin-bottom: 20px;
}

.metal-input input,
.metal-input textarea,
.metal-input select {
    width: 100%;
    padding: 12px 15px;
    background-color: rgba(0, 0, 0, 0.2);
    border: 1px solid #444;
    color: var(--text-metal);
    font-family: inherit;
    font-size: 0.95rem;
    transition: all 0.3s ease;
}

.metal-input textarea {
    height: 150px;
    resize: vertical;
}

.metal-input select {
    appearance: none;
    background-image: url("data:image/svg+xml;charset=UTF-8,%3csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='%23ff9a00'%3e%3cpath d='M7 10l5 5 5-5z'/%3e%3c/svg%3e");
    background-repeat: no-repeat;
    background-position: right 10px center;
    background-size: 15px;
}

.input-weld {
    position: absolute;
    bottom: 0;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--weld-orange);
    transition: width 0.3s ease;
}

.metal-input input:focus ~ .input-weld,
.metal-input textarea:focus ~ .input-weld,
.metal-input select:focus ~ .input-weld {
    width: 100%;
}

.metal-input input:focus,
.metal-input textarea:focus,
.metal-input select:focus {
    outline: none;
    border-color: var(--weld-orange);
    background: rgba(255, 255, 255, 0.05);
}

.form-footer {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-top: 30px;
}

.form-footer p {
    color: var(--text-gray);
    font-size: 0.8rem;
}

/* Mapa */
.metal-map {
    height: 500px;
    position: relative;
}

.metal-map iframe {
    width: 100%;
    height: 100%;
    border: none;
    display: block;
    filter: grayscale(50%) contrast(110%) brightness(0.8);
}

/* Footer */
.metal-footer {
    background-color: var(--metal-dark);
    border-top: 1px solid rgba(255, 107, 0, 0.2);
    padding: 70px 0 20px;
    position: relative;
}

.footer-content {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 40px;
    margin-bottom: 50px;
}

.footer-logo h3 {
    font-size: 1.8rem;
    color: var(--text-light);
    margin-bottom: 15px;
}

.footer-logo span {
    color: var(--weld-yellow);
}

.footer-logo p {
    color: var(--text-gray);
    margin-bottom: 20px;
    font-size: 0.95rem;
}

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

.footer-social a {
    color: var(--text-metal);
    font-size: 1.2rem;
    transition: all 0.3s ease;
}

.footer-social a:hover {
    color: var(--weld-orange);
}

.footer-links h4,
.footer-services h4,
.footer-contact h4 {
    font-size: 1.3rem;
    color: var(--text-light);
    margin-bottom: 20px;
    position: relative;
    padding-bottom: 10px;
}

.footer-links h4::after,
.footer-services h4::after,
.footer-contact h4::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 40px;
    height: 2px;
    background: var(--weld-orange);
}

.footer-links ul,
.footer-services ul {
    display: grid;
    gap: 12px;
}

.footer-links li,
.footer-services li {
    transition: all 0.3s ease;
}

.footer-links a,
.footer-services a {
    color: var(--text-gray);
    font-size: 0.95rem;
    transition: all 0.3s ease;
}

.footer-links a:hover,
.footer-services a:hover {
    color: var(--weld-yellow);
    padding-left: 5px;
}

.footer-contact ul {
    display: grid;
    gap: 15px;
}

.footer-contact li {
    display: flex;
    align-items: flex-start;
    gap: 10px;
    color: var(--text-gray);
    font-size: 0.95rem;
}

.footer-contact i {
    color: var(--weld-orange);
    font-size: 1rem;
    margin-top: 3px;
}

.footer-bottom {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding-top: 30px;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
}

.copyright p {
    color: var(--text-gray);
    font-size: 0.9rem;
}

.footer-extra {
    display: flex;
    gap: 20px;
}

.footer-extra a {
    color: var(--text-gray);
    font-size: 0.9rem;
    transition: all 0.3s ease;
}

.footer-extra a:hover {
    color: var(--weld-yellow);
}

/* Botões */
.weld-button {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 10px;
    padding: 12px 25px;
    border: none;
    border-radius: 4px;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 1px;
    position: relative;
    overflow: hidden;
    transition: all 0.3s;
    text-decoration: none;
    cursor: pointer;
    font-size: 0.95rem;
}

.weld-button-primary {
    background: linear-gradient(to right, var(--weld-orange), var(--weld-yellow));
    color: var(--metal-dark);
    box-shadow: 0 0 15px rgba(255, 107, 0, 0.5);
}

.weld-button-primary:hover {
    color: var(--metal-dark);
    box-shadow: 0 0 25px rgba(255, 107, 0, 0.8);
    transform: translateY(-3px);
}

.weld-button-secondary {
    background: transparent;
    color: var(--text-light);
    border: 2px solid var(--weld-orange);
    box-shadow: 0 0 10px rgba(255, 107, 0, 0.3);
}

.weld-button-secondary:hover {
    background: rgba(255, 107, 0, 0.1);
    color: var(--weld-yellow);
    transform: translateY(-3px);
    box-shadow: 0 0 20px rgba(255, 107, 0, 0.5);
}

.weld-button i {
    font-size: 0.9rem;
}

.weld-button::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.2), transparent);
    transition: 0.5s;
}

.weld-button:hover::before {
    left: 100%;
}

/* Botão WhatsApp */
.whatsapp-weld {
    position: fixed;
    bottom: 30px;
    right: 30px;
    background: linear-gradient(to bottom, #25D366, #128C7E);
    color: white;
    width: 60px;
    height: 60px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.8rem;
    box-shadow: 0 5px 20px rgba(0, 0, 0, 0.3);
    z-index: 999;
    text-decoration: none;
    transition: all 0.3s;
}

.whatsapp-weld:hover {
    transform: scale(1.1) translateY(-5px);
    box-shadow: 0 10px 30px rgba(37, 211, 102, 0.5);
}

.weld-spark {
    position: absolute;
    width: 100%;
    height: 100%;
    border-radius: 50%;
    border: 2px solid rgba(255, 255, 255, 0.3);
    animation: pulse 2s infinite;
}

/* Botão Voltar ao Topo */
.back-to-top {
    position: fixed;
    bottom: 100px;
    right: 30px;
    background: var(--weld-orange);
    color: var(--metal-dark);
    width: 50px;
    height: 50px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.3rem;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.3);
    z-index: 998;
    opacity: 0;
    visibility: hidden;
    transition: all 0.3s;
}

.back-to-top.active {
    opacity: 1;
    visibility: visible;
}

.back-to-top:hover {
    background: var(--weld-yellow);
    transform: translateY(-5px);
}

/* Efeitos de Solda */
.weld-effects {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    pointer-events: none;
    z-index: -1;
}

.spark {
    position: absolute;
    background-color: var(--weld-yellow);
    border-radius: 50%;
    pointer-events: none;
    animation: spark-fly linear;
    filter: blur(1px);
    box-shadow: 0 0 10px var(--weld-yellow);
}

/* Animações */
@keyframes weld-glow {
    0%, 100% { opacity: 0.5; }
    50% { opacity: 1; }
}

@keyframes weld-line {
    0% { width: 0; opacity: 0; }
    100% { width: 80%; opacity: 1; }
}

@keyframes sparkle {
    0% { text-shadow: 0 0 5px var(--weld-yellow); }
    100% { text-shadow: 0 0 15px var(--weld-orange), 0 0 30px var(--weld-yellow); }
}

@keyframes pulse {
    0% { transform: scale(1); opacity: 0.7; }
    50% { transform: scale(1.2); opacity: 0.3; }
    100% { transform: scale(1); opacity: 0.7; }
}

@keyframes spark-fly {
    0% { 
        transform: translate(0, 0);
        opacity: 1;
        width: 2px;
        height: 2px;
    }
    100% {
        transform: translate(var(--spark-x), var(--spark-y));
        opacity: 0;
        width: 1px;
        height: 1px;
    }
}

@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* Responsividade */
@media (max-width: 1200px) {
    .specialties-container {
        grid-template-columns: 1fr;
    }
    
    .specialties-image {
        order: -1;
        max-width: 600px;
        margin: 0 auto;
    }
}

@media (max-width: 992px) {
    section {
        padding: 80px 0;
    }
    
    .hero-content h1 {
        font-size: 2.4rem;
    }
    
    .about-container {
        grid-template-columns: 1fr;
    }
    
    .about-img {
        order: -1;
        min-height: 400px;
    }
    
    .contact-container {
        grid-template-columns: 1fr;
        gap: 40px;
    }
}

@media (max-width: 768px) {
    section {
        padding: 60px 0;
    }
    
    .section-title h2 {
        font-size: 2rem;
    }
    
    .header-container {
        flex-wrap: wrap;
    }
    
    .mobile-menu-toggle {
        display: block;
    }
    
    nav {
        position: fixed;
        top: 100px;
        left: 0;
        width: 100%;
        background: var(--metal-dark);
        padding: 20px;
        box-shadow: 0 10px 20px rgba(0,0,0,0.3);
        transform: translateY(-150%);
        transition: transform 0.3s ease;
        z-index: 998;
    }
    
    nav.active {
        transform: translateY(0);
    }
    
    .welded-menu {
        flex-direction: column;
        gap: 15px;
    }
    
    .weld-link {
        display: block;
        padding: 10px;
        border-bottom: 1px solid rgba(255, 107, 0, 0.1);
    }
    
    .hero-content {
        padding: 30px;
    }
    
    .hero-content h1 {
        font-size: 2rem;
    }
    
    .hero-content p {
        font-size: 1.1rem;
    }
    
    .form-group {
        grid-template-columns: 1fr;
    }
    
    .footer-content {
        grid-template-columns: 1fr 1fr;
    }
    
    .footer-bottom {
        flex-direction: column;
        gap: 15px;
        text-align: center;
    }
}

@media (max-width: 576px) {
    section {
        padding: 50px 0;
    }
    
    .section-title h2 {
        font-size: 1.8rem;
    }
    
    .logo-title {
        font-size: 1.1rem;
    }
    
    .logo-subtitle {
        font-size: 0.8rem;
    }
    
    .hero-content h1 {
        font-size: 1.8rem;
    }
    
    .hero-content p {
        font-size: 1rem;
    }
    
    .hero-buttons {
        flex-direction: column;
        gap: 15px;
    }
    
    .weld-button {
        width: 100%;
        justify-content: center;
    }
    
    .highlights-grid {
        grid-template-columns: 1fr;
    }
    
    .services-grid {
        grid-template-columns: 1fr;
    }
    
    .projects-grid {
        grid-template-columns: 1fr;
    }
    
    .footer-content {
        grid-template-columns: 1fr;
    }
    
    .whatsapp-weld {
        width: 50px;
        height: 50px;
        font-size: 1.5rem;
        bottom: 20px;
        right: 20px;
    }
    
    .back-to-top {
        width: 40px;
        height: 40px;
        font-size: 1.1rem;
        bottom: 80px;
        right: 20px;
    }
}