/* Reset e Estilos Gerais */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    font-family: Verdana, Geneva, sans-serif;
}

html {
    scroll-behavior: smooth;
}

body {
    color: #000;
    line-height: 1.6;
    overflow-x: hidden;
    background-color: #fcfcfc;
}

/* Personalização da Barra de Rolagem */
::-webkit-scrollbar {
    width: 12px;
}

::-webkit-scrollbar-track {
    background: #f1f1f1;
    border-radius: 6px;
}

::-webkit-scrollbar-thumb {
    background: #FF5300;
    border-radius: 6px;
    border: 2px solid #f1f1f1;
}

::-webkit-scrollbar-thumb:hover {
    background: #e64a00;
}

/* Otimizações de Performance para Lazy Loading */
.project-card img {
    backface-visibility: hidden;
    transform: translateZ(0);
    will-change: transform;
}

.projects-grid {
    contain: layout style paint;
}

/* Preload hint para melhor performance */
img[loading="lazy"] {
    content-visibility: auto;
}

/* Otimizações para blur-up loading */
.loading-blur {
    filter: blur(3px);
    transition: filter 0.4s ease;
}

.loaded {
    filter: none !important;
}

/* Hero slides otimizadas */
.hero-slide {
    will-change: transform, opacity;
    contain: layout style paint;
}

/* Cache de transformações */
.slider-container {
    will-change: transform;
    contain: layout;
}

h1,
h2,
h3,
h4,
h5,
h6 {
    font-family: Verdana, Geneva, sans-serif;
    font-weight: bold;
    margin-bottom: 1rem;
}

h2 {
    font-size: 2.5rem;
    text-align: center;
    color: #000;
    margin-bottom: 2rem;
    position: relative;
}

h2:after {
    content: '';
    display: block;
    width: 80px;
    height: 4px;
    background-color: #FF5300;
    margin: 15px auto 0;
    border-radius: 2px;
}

p {
    margin-bottom: 1rem;
}

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

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

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

.section-title {
    margin-bottom: 30px;
    position: relative;
    z-index: 2;
}

.section-subtitle {
    text-align: center;
    color: #666;
    font-size: 1.1rem;
    max-width: 800px;
    margin: -20px auto 40px;
}

.btn {
    display: inline-block;
    padding: 14px 28px;
    background-color: #FF5300;
    color: white;
    text-decoration: none;
    border-radius: 50px;
    font-weight: bold;
    transition: all 0.4s cubic-bezier(0.175, 0.885, 0.32, 1.275);
    border: none;
    cursor: pointer;
    box-shadow: 0 5px 15px rgba(255, 83, 0, 0.2);
    position: relative;
    overflow: hidden;
}

.btn:after {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    width: 5px;
    height: 5px;
    background: rgba(255, 255, 255, 0.5);
    opacity: 0;
    border-radius: 100%;
    transform: scale(1, 1) translate(-50%);
    transform-origin: 50% 50%;
}

.btn:hover {
    background-color: #e64a00;
    transform: translateY(-5px) scale(1.02);
    box-shadow: 0 10px 25px rgba(255, 83, 0, 0.3);
}

.btn:hover:after {
    animation: ripple 1s ease-out;
}

@keyframes ripple {
    0% {
        transform: scale(0, 0);
        opacity: 0.5;
    }

    100% {
        transform: scale(20, 20);
        opacity: 0;
    }
}

/* Navbar */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    z-index: 1000;
    transition: all 0.5s cubic-bezier(0.165, 0.84, 0.44, 1);
    padding: 15px 0;
    background: rgba(0, 0, 0, 0.5);
}

.navbar-container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    max-width: 1300px;
    margin: 0 auto;
    padding: 0 30px;
}

.navbar-logo {
    text-decoration: none;
    display: flex;
    align-items: center;
}

.logo-img {
    height: 65px;
    width: auto;
    transition: all 0.3s ease;
}

.navbar.scrolled .logo-img {
    height: 50px;
}

.navbar-menu {
    display: flex;
    list-style-type: none;
}

.navbar-item {
    margin-left: 35px;
}

.navbar-link {
    color: white;
    text-decoration: none;
    font-weight: 500;
    transition: all 0.3s ease;
    position: relative;
    padding-bottom: 5px;
    text-transform: uppercase;
    font-size: 1rem;
    letter-spacing: 1px;
}

.navbar-link:hover {
    color: #FF5300;
}

.navbar-link:after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 0;
    height: 2px;
    background-color: #FF5300;
    transition: width 0.3s cubic-bezier(0.165, 0.84, 0.44, 1);
}

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

.navbar-link.active {
    color: #FF5300;
}

.navbar-link.active:after {
    width: 100%;
}

.navbar.scrolled {
    background: rgba(0, 0, 0, 0.5);
    padding: 10px 0;
    box-shadow: 0 5px 25px rgba(0, 0, 0, 0.2);
    backdrop-filter: blur(10px);
    border-bottom: 1px solid rgba(255, 83, 0, 0.2);
}

.mobile-menu-btn {
    display: none;
    background: none;
    border: none;
    color: white;
    font-size: 24px;
    cursor: pointer;
    z-index: 100;
    transition: all 0.3s ease;
}

.mobile-menu-btn:hover {
    color: #FF5300;
    transform: rotate(90deg);
}

/* Breadcrumbs */
.breadcrumbs {
    background-color: #f5f5f5;
    padding: 15px 0;
    margin-top: 80px;
    border-bottom: 1px solid #eee;
}

.breadcrumbs-container {
    display: flex;
    align-items: center;
}

.breadcrumb-item {
    font-size: 0.9rem;
    color: #666;
}

.breadcrumb-item a {
    text-decoration: none;
    color: #333;
    transition: color 0.3s ease;
}

.breadcrumb-item a:hover {
    color: #FF5300;
}

.breadcrumb-separator {
    margin: 0 10px;
    color: #aaa;
}

/* Página de Projetos */
.page-header {
    background-color: #f9f9f9;
    padding: 100px 0 50px;
    margin-top: 0;
    border-bottom: 1px solid #eee;
}

.page-title {
    margin-bottom: 5px;
    text-align: center;
}

.title-line {
    width: 80px;
    height: 4px;
    background-color: #FF5300;
    margin: 15px auto 0;
    border-radius: 2px;
}

/* Hero Section */
.hero {
    height: 100vh;
    position: relative;
    overflow: hidden;
    background-color: #000;
}

.hero-slider {
    width: 100%;
    height: 100%;
    position: relative;
}

.hero-slide {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    opacity: 0;
    transition: opacity 1.5s ease, transform 6s ease;
    background-size: cover;
    background-position: center;
    transform: scale(1.05);
}

.hero-slide.active {
    opacity: 1;
    transform: scale(1);
}

.hero-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.1);
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: flex-start;
    text-align: left;
    padding: 0 20px;
}

.hero-content {
    max-width: 600px;
    margin-left: 10%;
    position: relative;
}

.hero-title {
    color: white;
    font-size: 3rem;
    margin-bottom: 15px;
    opacity: 0;
    transform: translateY(30px);
    animation: fadeInUp 1s forwards;
    animation-delay: 0.5s;
    line-height: 1.2;
    font-weight: 700;
    text-shadow: 0 2px 10px rgba(0, 0, 0, 0.3);
}

.hero-subtitle {
    color: white;
    font-size: 1.2rem;
    margin-bottom: 25px;
    max-width: 450px;
    opacity: 0;
    transform: translateY(30px);
    animation: fadeInUp 1s forwards;
    animation-delay: 0.8s;
    line-height: 1.4;
}

.hero-btn {
    opacity: 0;
    transform: translateY(30px);
    animation: fadeInUp 1s forwards;
    animation-delay: 1.1s;
    font-size: 0.95rem;
    padding: 10px 20px;
}

.hero-indicators {
    position: absolute;
    top: 50%;
    right: 30px;
    transform: translateY(-50%);
    display: flex;
    flex-direction: column;
    gap: 15px;
    z-index: 10;
}

.indicator {
    width: 10px;
    height: 10px;
    background-color: rgba(255, 255, 255, 0.3);
    border-radius: 50%;
    cursor: pointer;
    transition: all 0.3s ease;
}

.indicator.active {
    background-color: #FF5300;
    transform: scale(1.3);
}

.scroll-down {
    position: absolute;
    bottom: 30px;
    left: 50%;
    transform: translateX(-50%);
    display: flex;
    flex-direction: column;
    align-items: center;
    color: white;
    text-decoration: none;
    opacity: 0;
    animation: fadeIn 1s forwards;
    animation-delay: 1.5s;
}

.scroll-arrow {
    width: 30px;
    height: 50px;
    border: 2px solid rgba(255, 255, 255, 0.7);
    border-radius: 20px;
    position: relative;
    margin-bottom: 10px;
}

.scroll-arrow:before {
    content: '';
    position: absolute;
    top: 8px;
    left: 50%;
    width: 6px;
    height: 6px;
    margin-left: -3px;
    background-color: white;
    border-radius: 50%;
    animation: scrollDown 2s infinite;
}

.scroll-text {
    font-size: 12px;
    letter-spacing: 2px;
    text-transform: uppercase;
}

@keyframes scrollDown {
    0% {
        transform: translateY(0);
        opacity: 1;
    }

    80% {
        opacity: 0;
    }

    100% {
        transform: translateY(25px);
        opacity: 0;
    }
}

@keyframes fadeIn {
    from {
        opacity: 0;
    }

    to {
        opacity: 1;
    }
}

/* Sobre Section */
.about {
    background-color: #f9f9f9;
}

.about-container {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    gap: 50px;
}

/* Carrossel na Seção Sobre */
.about-image-carousel {
    flex: 1;
    min-width: 300px;
    border-radius: 8px;
    overflow: hidden;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
    opacity: 0;
    transform: translateX(-30px);
    transition: opacity 0.8s ease, transform 0.8s ease;
    position: relative;
}

.about-image-carousel.visible {
    opacity: 1;
    transform: translateX(0);
}

.about-carousel-container {
    width: 100%;
    position: relative;
    overflow: hidden;
}

.about-slide {
    width: 100%;
    display: none;
    transition: opacity 0.8s ease;
}

.about-slide.active {
    display: block;
}

.about-slide img {
    width: 100%;
    height: auto;
    display: block;
    transition: transform 0.8s ease;
}

.about-carousel-indicators {
    position: absolute;
    bottom: 15px;
    left: 0;
    right: 0;
    display: flex;
    justify-content: center;
    gap: 8px;
    z-index: 5;
}

.about-indicator {
    width: 10px;
    height: 10px;
    border-radius: 50%;
    background-color: rgba(255, 255, 255, 0.5);
    cursor: pointer;
    transition: all 0.3s ease;
}

.about-indicator.active {
    background-color: #FF5300;
    transform: scale(1.3);
}

.about-content {
    flex: 1;
    min-width: 300px;
    opacity: 0;
    transform: translateX(30px);
    transition: opacity 0.8s ease, transform 0.8s ease;
}

.about-content.visible {
    opacity: 1;
    transform: translateX(0);
}

.about-title {
    color: #000;
    text-align: left;
    margin-bottom: 1.5rem;
}

.about-title:after {
    margin: 15px 0 0;
}

.about-text {
    margin-bottom: 1.5rem;
    color: #444;
}

/* Serviços Section */
.services {
    background-color: #fff;
}

.services-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(350px, 1fr));
    gap: 30px;
    position: relative;
    z-index: 2;
}

.service-card {
    background-color: white;
    border-radius: 12px;
    overflow: hidden;
    box-shadow: 0 5px 20px rgba(0, 0, 0, 0.05);
    transition: all 0.3s ease;
    opacity: 0;
    transform: translateY(30px);
    transition: opacity 0.8s ease, transform 0.8s ease;
    border: 1px solid rgba(0, 0, 0, 0.05);
}

.service-card.visible {
    opacity: 1;
    transform: translateY(0);
}

.service-card:hover {
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
}

.service-img {
    width: 100%;
    height: 220px;
    object-fit: cover;
    transition: transform 0.5s ease;
}

.service-card:hover .service-img {
    transform: scale(1.05);
}

.service-content {
    padding: 25px;
}

.service-title {
    font-size: 1.4rem;
    margin-bottom: 15px;
    color: #000;
    position: relative;
    display: inline-block;
}

.service-title:after {
    content: '';
    position: absolute;
    bottom: -5px;
    left: 0;
    width: 40px;
    height: 3px;
    background-color: #FF5300;
    transition: width 0.3s ease;
}

.service-card:hover .service-title:after {
    width: 60px;
}

.service-text {
    color: #666;
    margin-bottom: 20px;
    line-height: 1.7;
}

.service-link {
    color: #FF5300;
    text-decoration: none;
    font-weight: bold;
    display: inline-flex;
    align-items: center;
    transition: all 0.3s ease;
}

.service-link i {
    margin-left: 8px;
    transition: transform 0.3s ease;
}

.service-link:hover {
    color: #e64a00;
}

.service-link:hover i {
    transform: translateX(5px);
}

/* Clientes Section */
.clients {
    background-color: #f9f9f9;
}

.clients-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(180px, 1fr));
    gap: 30px;
    align-items: center;
}

/* Estilos para o Carrossel de Clientes */
.clients-banner {
    background-color: #FF5300;
    overflow: hidden;
    padding: 30px 0;
}

.clients-marquee {
    display: flex;
    width: 100%;
    overflow: hidden;
}

.clients-track {
    display: flex;
    animation: scroll 40s linear infinite;
    padding: 10px 0;
}

.client-item {
    padding: 0 15px;
    margin: 0 15px;
    height: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all 0.3s ease;
}

.client-logo {
    height: 40px;
    max-width: 120px;
    object-fit: contain;
    filter: brightness(0) invert(1);
    opacity: 0.8;
    transition: all 0.3s ease;
}

.client-item:hover .client-logo {
    opacity: 1;
    transform: translateY(-3px);
}

@keyframes scroll {
    0% {
        transform: translateX(0);
    }

    100% {
        transform: translateX(-100%);
    }
}

/* Testimonials Section */
.testimonials-section {
    background-color: #f9f9f9;
    padding: 100px 0;
    position: relative;
    overflow: visible;
}

.testimonials-section::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(135deg, rgba(255, 83, 0, 0.05) 0%, rgba(255, 83, 0, 0) 50%);
    z-index: 0;
}

.testimonials-simple {
    position: relative;
    max-width: 900px;
    margin: 0 auto;
    padding: 30px 0;
    z-index: 1;
}

.testimonials-container {
    position: relative;
    display: flex;
    align-items: flex-start;
    transition: height 0.3s ease;
    padding: 20px 0;
    min-height: auto;
    height: auto;
    overflow: visible;
}

.testimonial-item {
    background-color: white;
    border-radius: 12px;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.07);
    padding: 40px;
    display: none;
    width: 100%;
    opacity: 0;
    transition: opacity 0.4s ease, transform 0.4s ease;
    transform: translateY(10px);
    border-left: 5px solid #FF5300;
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
}

.testimonial-item.active {
    display: block;
    opacity: 1;
    transform: translateY(0);
    position: relative;
}

.testimonial-quote-large {
    position: absolute;
    top: -20px;
    left: 20px;
    font-size: 120px;
    color: rgba(255, 83, 0, 0.04);
    font-family: Georgia, serif;
    line-height: 1;
    z-index: 0;
}

.testimonial-content-wrapper {
    position: relative;
    z-index: 1;
}

.testimonial-icon {
    display: inline-block;
    margin-bottom: 20px;
    color: #FF5300;
    background-color: rgba(255, 83, 0, 0.1);
    width: 50px;
    height: 50px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 20px;
}

.testimonial-content {
    font-style: italic;
    font-size: 18px;
    line-height: 1.8;
    color: #444;
    margin-bottom: 30px;
    position: relative;
    z-index: 1;
}

.testimonial-author {
    display: flex;
    align-items: center;
    justify-content: flex-start;
    margin-top: 30px;
    padding-top: 20px;
    border-top: 1px solid rgba(0, 0, 0, 0.05);
}

.testimonial-img {
    width: 70px;
    height: 70px;
    border-radius: 50%;
    object-fit: cover;
    margin-right: 20px;
    border: 3px solid white;
    box-shadow: 0 3px 10px rgba(0, 0, 0, 0.1);
}

.testimonial-info {
    text-align: left;
}

.testimonial-name {
    font-weight: bold;
    font-size: 16px;
    margin-bottom: 5px;
    color: #333;
}

.testimonial-role {
    color: #777;
    font-size: 14px;
    margin-bottom: 5px;
}

.testimonial-rating {
    color: #FFD700;
    font-size: 14px;
    display: flex;
}

.testimonials-navigation {
    display: flex;
    justify-content: center;
    align-items: center;
    margin-bottom: 30px;
}

.nav-btn {
    width: 50px;
    height: 50px;
    border-radius: 50%;
    background-color: white;
    border: none;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.1);
    color: #555;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 16px;
    transition: all 0.3s ease;
    margin: 0 15px;
    z-index: 5;
}

.nav-btn:hover,
.nav-btn:focus {
    background-color: #FF5300;
    color: white;
    transform: translateY(-3px);
    box-shadow: 0 8px 20px rgba(255, 83, 0, 0.3);
    outline: none;
}

.nav-indicators {
    display: flex;
    gap: 10px;
}

.nav-dot {
    width: 12px;
    height: 12px;
    border-radius: 50%;
    background-color: #ddd;
    cursor: pointer;
    transition: all 0.3s ease;
    box-shadow: 0 2px 5px rgba(0, 0, 0, 0.1);
}

.nav-dot:hover {
    background-color: #ccc;
    transform: scale(1.1);
}

.nav-dot.active {
    background-color: #FF5300;
    transform: scale(1.3);
}

/* Grid de Projetos */
.projects-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(380px, 1fr));
    gap: 30px;
    margin-bottom: 50px;
}

.project-card {
    background-color: white;
    border-radius: 12px;
    overflow: hidden;
    box-shadow: 0 5px 20px rgba(0, 0, 0, 0.05);
    transition: all 0.3s ease;
    opacity: 0;
    transform: translateY(30px);
    animation: fadeInUp 0.8s forwards;
    border: 1px solid rgba(0, 0, 0, 0.05);
    height: 100%;
    display: flex;
    flex-direction: column;
}

.project-card:hover {
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
    transform: translateY(-5px);
}

.project-slider {
    position: relative;
    height: 300px;
    overflow: hidden;
}

.slider-container {
    display: flex;
    transition: transform 0.5s ease;
    height: 100%;
}

.slider-item {
    flex: 0 0 100%;
    height: 100%;
}

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

.project-card:hover .slider-img {
    transform: scale(1.05);
}

.slider-nav {
    position: absolute;
    bottom: 15px;
    left: 0;
    right: 0;
    display: flex;
    justify-content: center;
    gap: 8px;
}

.slider-dot {
    width: 8px;
    height: 8px;
    border-radius: 50%;
    background-color: rgba(255, 255, 255, 0.5);
    cursor: pointer;
    transition: all 0.3s ease;
}

.slider-dot.active {
    background-color: #FF5300;
    transform: scale(1.3);
}

.slider-arrows {
    position: absolute;
    top: 50%;
    left: 0;
    right: 0;
    transform: translateY(-50%);
    display: flex;
    justify-content: space-between;
    padding: 0 15px;
    opacity: 0;
    transition: opacity 0.3s ease;
}

.project-card:hover .slider-arrows {
    opacity: 1;
}

.slider-arrow {
    width: 35px;
    height: 35px;
    border-radius: 50%;
    background-color: rgba(0, 0, 0, 0.5);
    color: white;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    transition: all 0.3s ease;
}

.slider-arrow:hover {
    background-color: #FF5300;
}

.project-content {
    padding: 20px;
    display: flex;
    flex-direction: column;
    flex-grow: 1;
}

.project-title {
    font-size: 1.4rem;
    margin-bottom: 12px;
    color: #000;
    position: relative;
    display: inline-block;
}

.project-title:after {
    content: '';
    position: absolute;
    bottom: -5px;
    left: 0;
    width: 40px;
    height: 3px;
    background-color: #FF5300;
    transition: width 0.3s ease;
}

.project-card:hover .project-title:after {
    width: 60px;
}

/* Simplificado - Removida a descrição e metadados */
.project-content {
    padding: 20px;
    text-align: center;
}

.project-title {
    font-size: 1.4rem;
    margin-bottom: 0;
    color: #000;
    position: relative;
    display: inline-block;
}

.project-title:after {
    content: '';
    position: absolute;
    bottom: -5px;
    left: 50%;
    transform: translateX(-50%);
    width: 40px;
    height: 3px;
    background-color: #FF5300;
    transition: width 0.3s ease;
}

.project-card:hover .project-title:after {
    width: 60px;
}

/* Footer */
footer {
    background: #666;
    color: #fff;
    padding: 60px 0 20px;
}

.footer-container {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 40px;
}

.footer-logo {
    margin-bottom: 15px;
    display: block;
}

.footer-logo img {
    height: 65px;
    width: auto;
}

.footer-desc {
    color: #fdfdfd;
    margin-bottom: 20px;
}

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

.social-link {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 40px;
    height: 40px;
    border-radius: 50%;
    background-color: #333;
    color: white;
    text-decoration: none;
    transition: all 0.3s ease;
}

.social-link:hover {
    background-color: #FF5300;
    transform: translateY(-3px);
}

.footer-title {
    color: #fff;
    font-size: 1.2rem;
    margin-bottom: 20px;
    position: relative;
    padding-bottom: 10px;
}

.footer-title:after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 50px;
    height: 3px;
    background-color: #FF5300;
}

.footer-links {
    list-style-type: none;
}

.footer-link {
    margin-bottom: 10px;
}

.footer-link a {
    color: #fdfdfd;
    text-decoration: none;
    transition: color 0.3s ease;
}

.footer-link a:hover {
    color: #FF5300;
}

.contact-info {
    list-style-type: none;
}

.contact-item {
    margin-bottom: 15px;
    display: flex;
    align-items: center;
    color: #fdfdfd;
}

.contact-item i {
    margin-right: 10px;
    color: #FF5300;
    min-width: 16px;
    text-align: center;
}

.footer-bottom {
    text-align: center;
    padding-top: 30px;
    margin-top: 40px;
    border-top: 1px solid #8a8a8a;
    color: #fdfdfd;
}

/* Botão Voltar ao Topo */
.back-to-top {
    position: fixed;
    bottom: 30px;
    right: 30px;
    width: 50px;
    height: 50px;
    border-radius: 50%;
    background-color: #FF5300;
    color: white;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    z-index: 99;
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.15);
    opacity: 0;
    visibility: hidden;
    transition: all 0.3s ease;
    transform: translateY(20px);
}

.back-to-top.visible {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
}

.back-to-top:hover {
    background-color: #e64a00;
    transform: translateY(-5px);
}

/* Animações */
@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }

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

/* Responsividade */
@media screen and (max-width: 991px) {
    h2 {
        font-size: 2rem;
    }

    .hero-title {
        font-size: 2.5rem;
    }

    .hero-subtitle {
        font-size: 1.2rem;
    }

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

    .projects-grid {
        grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
    }
}

@media screen and (max-width: 768px) {
    .navbar-menu {
        position: fixed;
        top: 0;
        left: -100%;
        width: 70%;
        height: 100vh;
        background-color: rgba(0, 0, 0, 0.9);
        flex-direction: column;
        justify-content: center;
        transition: all 0.4s ease;
        z-index: 1001;
    }

    .navbar-menu.active {
        left: 0;
    }

    .navbar-item {
        margin: 15px 0;
        text-align: center;
    }

    .mobile-menu-btn {
        display: block;
        z-index: 1002;
    }

    .section {
        padding: 60px 0;
    }

    .about-container {
        flex-direction: column;
        gap: 30px;
    }

    .about-image-carousel,
    .about-content {
        min-width: 100%;
    }

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

    .clients-grid {
        grid-template-columns: repeat(auto-fill, minmax(150px, 1fr));
    }

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

    .testimonial-text {
        font-size: 0.95rem;
    }
}

@media screen and (max-width: 480px) {
    h2 {
        font-size: 1.75rem;
    }

    .hero-title {
        font-size: 2rem;
    }

    .hero-subtitle {
        font-size: 1rem;
    }

    .section {
        padding: 50px 0;
    }

    .page-header {
        padding: 60px 0 30px;
    }

    .clients-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}