:root {
    --primary-color: #1a1a2e; /* Azul muito escuro, quase preto */
    --secondary-color: #ffd700; /* Amarelo do sol */
    --accent-color: #ff4500; /* Laranja do pôr do sol */
    --dark-bg: #121212;
    --dark-surface: #1e1e1e;
    --text-color: #ffffff;
    --text-secondary: #b3b3b3;
    --light-bg: #1a1a1a;
    --white: #ffffff;
    --gradient-overlay: linear-gradient(rgba(0,0,0,0.7), rgba(0,0,0,0.7));
}

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

body {
    font-family: 'Poppins', sans-serif;
    line-height: 1.6;
    color: var(--text-color);
    background-color: var(--dark-bg);
}

/* Header */
.header {
    background-color: rgba(26, 26, 46, 0.95);
    backdrop-filter: blur(10px);
    box-shadow: 0 2px 20px rgba(0,0,0,0.3);
    position: fixed;
    width: 100%;
    top: 0;
    z-index: 1000;
    transition: all 0.3s ease;
}

.header.scrolled {
    background-color: rgba(26, 26, 46, 0.98);
    padding: 0.5rem 0;
}

.nav-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 1rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: nowrap;
}

.logo {
    display: flex;
    align-items: center;
    gap: 1rem;
    height: auto;
    padding: 0.8rem 0;
}

.logo-img {
    height: 85px;
    max-width: 300px;
    object-fit: contain;
    filter: drop-shadow(0 2px 8px rgba(0,0,0,0.3));
    background: transparent;
    transition: filter 0.3s;
}

.logo-text {
    display: flex;
    flex-direction: column;
    gap: 0.2rem;
    justify-content: center;
    padding-top: 0.3rem;
}

.company-name {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--white);
    margin: 0;
    line-height: 1.2;
    text-shadow: 0 2px 4px rgba(0,0,0,0.3);
    letter-spacing: 0.5px;
    word-wrap: break-word;
    max-width: 100%;
}

.company-tagline {
    font-size: 1.1rem;
    color: var(--secondary-color);
    margin: 0;
    font-weight: 500;
    letter-spacing: 1px;
    text-transform: uppercase;
    padding-top: 0.1rem;
    word-wrap: break-word;
    max-width: 100%;
}

@media (max-width: 600px) {
    .logo-img {
        height: 40px;
        max-width: 130px;
    }
    .logo {
        height: auto;
        gap: 0.5rem;
    }
    .language-selector {
        display: flex;
        gap: 0.3rem;
    }
    .lang-btn {
        width: 30px;
        height: 30px;
    }
    .flag-img {
        width: 20px;
        height: 20px;
    }
    .company-name {
        font-size: 0.9rem;
    }
    .company-tagline {
        font-size: 0.7rem;
    }
}

@media (max-width: 768px) {
    .nav-container {
        padding: 0.5rem 1rem;
        display: flex;
        flex-direction: row;
        justify-content: space-between;
        align-items: center;
    }
    
    .logo {
        flex-direction: row;
        align-items: center;
        gap: 0.5rem;
        height: auto;
    }

    .logo-text {
        padding-top: 0;
    }

    .company-name {
        font-size: 1.1rem;
    }

    .company-tagline {
        font-size: 0.8rem;
    }
    
    .language-selector {
        position: relative;
        display: flex;
        justify-content: flex-end;
        align-items: center;
        margin-left: auto;
    }
    
    .lang-btn {
        width: 35px;
        height: 35px;
    }
    
    .flag-img {
        width: 25px;
        height: 25px;
    }
}

@media (max-width: 480px) {
    .company-name {
        font-size: 0.9rem;
    }
    
    .company-tagline {
        font-size: 0.7rem;
    }
    
    .nav-container {
        padding: 0.5rem;
        flex-direction: row;
        justify-content: space-between;
        align-items: center;
        position: relative;
        width: 100%;
    }
    
    .header {
        padding: 0;
        background-color: rgba(26, 26, 46, 0.9);
    }
    
    .logo {
        flex-direction: row;
        width: auto;
        justify-content: flex-start;
        align-items: center;
        gap: 0.3rem;
        padding: 0.3rem 0;
    }
    
    .logo-img {
        height: 35px;
        width: auto;
        margin-bottom: 0;
    }
    
    .logo-text {
        padding-top: 0;
        padding-right: 0;
        text-align: left;
    }
    
    .language-selector {
        position: static;
        transform: none;
        margin-bottom: 0;
        display: flex;
        gap: 0.3rem;
        margin-left: auto;
        justify-content: flex-end;
    }
    
    .lang-btn {
        width: 28px;
        height: 28px;
        padding: 0.2rem;
    }
    
    .flag-img {
        width: 20px;
        height: 20px;
    }
    
    .hero {
        padding-top: 5rem;
    }
}

@media (max-width: 375px) {
    .company-name {
        font-size: 0.8rem;
        letter-spacing: 0;
    }
    
    .company-tagline {
        font-size: 0.6rem;
        letter-spacing: 0;
    }
    
    .logo-img {
        height: 30px;
        max-width: 80px;
    }
    
    .language-selector {
        gap: 0.2rem;
    }
    
    .lang-btn {
        width: 24px;
        height: 24px;
    }
    
    .flag-img {
        width: 18px;
        height: 18px;
    }
}

.language-selector {
    display: flex;
    gap: 0.5rem;
    margin-left: auto;
    justify-content: flex-end;
}

.lang-btn {
    padding: 0.3rem 0.7rem;
    border: 2px solid var(--secondary-color);
    background: none;
    color: var(--white);
    cursor: pointer;
    border-radius: 50%;
    transition: all 0.3s ease;
    font-weight: 500;
    font-size: 1.2rem;
    width: 40px;
    height: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.lang-btn.active {
    background-color: var(--secondary-color);
    color: var(--dark-bg);
    box-shadow: 0 2px 8px rgba(0,0,0,0.15);
}

.lang-btn .flag {
    font-size: 1.5rem;
    line-height: 1;
    display: flex;
    align-items: center;
    justify-content: center;
}

.flag-img {
    width: 28px;
    height: 28px;
    border-radius: 50%;
    object-fit: cover;
    box-shadow: 0 1px 4px rgba(0,0,0,0.12);
    border: 1.5px solid var(--secondary-color);
    background: var(--white);
    transition: border 0.2s, box-shadow 0.2s;
}

.lang-btn.active .flag-img {
    border: 2px solid var(--secondary-color);
    box-shadow: 0 2px 4px rgba(0,0,0,0.18);
}

/* Hero Section */
.hero {
    background: var(--gradient-overlay), url('https://images.unsplash.com/photo-1494412574643-ff11b0a5c1c3?ixlib=rb-1.2.1&auto=format&fit=crop&w=1950&q=80');
    background-size: cover;
    background-position: center;
    color: var(--white);
    padding: 12rem 2rem 6rem;
    text-align: center;
    position: relative;
    min-height: 80vh;
}

.hero::before {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    height: 100px;
    background: linear-gradient(to top, var(--dark-bg), transparent);
}

.hero-content {
    max-width: 800px;
    margin: 0 auto;
    position: relative;
}

.hero h1 {
    font-size: 3.5rem;
    margin-bottom: 1.5rem;
    text-shadow: 0 2px 4px rgba(0,0,0,0.3);
    line-height: 1.2;
}

.hero p {
    font-size: 1.4rem;
    margin-bottom: 2.5rem;
    color: var(--text-secondary);
}

/* Products Section */
.products {
    padding: 6rem 2rem;
    background-color: var(--dark-bg);
    position: relative;
}

.products h2 {
    text-align: center;
    margin-bottom: 4rem;
    color: var(--white);
    font-size: 2.5rem;
}

.product-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 2.5rem;
    max-width: 1200px;
    margin: 0 auto;
}

.product-card {
    background: var(--dark-surface);
    padding: 2.5rem;
    border-radius: 12px;
    box-shadow: 0 8px 32px rgba(0,0,0,0.2);
    transition: all 0.3s ease;
    border: 1px solid rgba(255,255,255,0.1);
    position: relative;
    overflow: hidden;
    flex: 0 0 calc(33.333% - 1rem);
    max-width: calc(33.333% - 1rem);
}

.product-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 4px;
    background: linear-gradient(90deg, var(--primary-color), var(--accent-color));
}

.product-card:hover {
    transform: translateY(-10px);
    box-shadow: 0 12px 40px rgba(0,0,0,0.3);
}

.product-card h3 {
    color: var(--secondary-color);
    margin-bottom: 1rem;
    font-size: 1.5rem;
}

.product-card p {
    color: var(--text-secondary);
}

/* Trust Section */
.trust {
    padding: 6rem 2rem;
    background-color: var(--dark-surface);
    position: relative;
}

.trust::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 1px;
    background: linear-gradient(90deg, transparent, var(--secondary-color), transparent);
}

.trust-content {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 3rem;
    max-width: 1200px;
    margin: 0 auto;
    text-align: center;
}

.trust-item {
    padding: 2rem;
    background: var(--dark-bg);
    border-radius: 12px;
    transition: all 0.3s ease;
}

.trust-item:hover {
    transform: translateY(-5px);
    box-shadow: 0 8px 32px rgba(0,0,0,0.2);
}

.trust-item i {
    font-size: 3rem;
    color: var(--secondary-color);
    margin-bottom: 1.5rem;
}

.trust-item h3 {
    color: var(--white);
    font-size: 1.3rem;
}

/* CTA Section */
.cta {
    background: var(--gradient-overlay), url('https://images.unsplash.com/photo-1494412574643-ff11b0a5c1c3?ixlib=rb-1.2.1&auto=format&fit=crop&w=1950&q=80');
    background-size: cover;
    background-position: center;
    color: var(--white);
    padding: 6rem 2rem;
    text-align: center;
    position: relative;
}

.cta::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(135deg, rgba(26, 35, 126, 0.9), rgba(255, 69, 0, 0.9));
}

.cta > * {
    position: relative;
    z-index: 1;
}

.cta h2 {
    margin-bottom: 2.5rem;
    font-size: 2.5rem;
    text-shadow: 0 2px 4px rgba(0,0,0,0.3);
}

.cta p {
    color: var(--text-secondary);
    margin-bottom: 2rem;
}

/* Buttons */
.cta-button {
    display: inline-flex;
    align-items: center;
    gap: 0.8rem;
    background-color: var(--secondary-color);
    color: var(--dark-bg);
    padding: 1.2rem 2.5rem;
    border-radius: 50px;
    text-decoration: none;
    font-weight: 600;
    font-size: 1.1rem;
    transition: all 0.3s ease;
    box-shadow: 0 4px 15px rgba(0,0,0,0.2);
}

.cta-button:hover {
    transform: scale(1.05);
    box-shadow: 0 8px 25px rgba(0,0,0,0.3);
    background-color: #ffed4a;
}

/* Footer */
.footer {
    background-color: var(--dark-surface);
    color: var(--text-secondary);
    padding: 3rem 2rem;
    text-align: center;
    border-top: 1px solid rgba(255,255,255,0.1);
}

/* Language Toggle */
.lang-pt, .lang-en {
    display: none;
}

html[lang="pt-BR"] .lang-pt,
html[lang="en"] .lang-en {
    display: block;
}

/* Animations */
.animate-in {
    opacity: 1 !important;
    transform: translateY(0) !important;
}

/* Responsive Design */
@media (max-width: 768px) {
    .hero h1 {
        font-size: 2.5rem;
    }
    
    .hero p {
        font-size: 1.1rem;
    }
    
    .product-grid {
        grid-template-columns: 1fr;
    }
    
    .trust-content {
        grid-template-columns: 1fr;
    }

    .cta h2 {
        font-size: 2rem;
    }
    
    .cta p {
        margin-bottom: 3rem;
    }
    
    .trust {
        padding: 4rem 2rem;
    }
    
    .applications {
        padding: 4rem 2rem;
    }
    
    .products {
        padding: 4rem 2rem;
    }
    
    .process {
        padding: 4rem 2rem;
    }
}

@media (max-width: 480px) {
    .cta p {
        margin-bottom: 3.5rem;
    }
    
    .trust {
        padding: 3rem 1.5rem;
    }
    
    .applications {
        padding-top: 3rem;
        padding-bottom: 3rem;
    }
    
    .products {
        padding: 3rem 1.5rem;
    }
    
    .process {
        padding-top: 3rem;
        padding-bottom: 3rem;
    }
}

/* Stats Section */
.stats {
    background-color: var(--dark-surface);
    padding: 4rem 2rem;
    position: relative;
}

.stats::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 1px;
    background: linear-gradient(90deg, transparent, var(--secondary-color), transparent);
}

.stats-container {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 2rem;
    max-width: 1200px;
    margin: 0 auto;
    text-align: center;
}

.stat-item {
    padding: 2rem;
    background: var(--dark-bg);
    border-radius: 12px;
    transition: all 0.3s ease;
}

.stat-item:hover {
    transform: translateY(-5px);
    box-shadow: 0 8px 32px rgba(0,0,0,0.2);
}

.stat-number {
    font-size: 3rem;
    font-weight: 700;
    color: var(--secondary-color);
    display: block;
    margin-bottom: 1rem;
}

.stat-item p {
    color: var(--text-secondary);
    font-size: 1.1rem;
}

/* Product Cards Enhancement */
.product-card i {
    font-size: 2.5rem;
    color: var(--secondary-color);
    margin-bottom: 1.5rem;
}

.features {
    list-style: none;
    margin-top: 1.5rem;
    padding-top: 1.5rem;
    border-top: 1px solid rgba(255,255,255,0.1);
}

.features li {
    color: var(--text-secondary);
    margin-bottom: 0.5rem;
    font-size: 0.9rem;
}

/* Process Section */
.process {
    padding: 6rem 2rem;
    background-color: var(--dark-bg);
    position: relative;
}

.process h2 {
    text-align: center;
    margin-bottom: 4rem;
    color: var(--white);
    font-size: 2.5rem;
}

.process-steps {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 2rem;
    max-width: 1200px;
    margin: 0 auto;
}

.step {
    text-align: center;
    padding: 2rem;
    background: var(--dark-surface);
    border-radius: 12px;
    position: relative;
    transition: all 0.3s ease;
}

.step:hover {
    transform: translateY(-5px);
    box-shadow: 0 8px 32px rgba(0,0,0,0.2);
}

.step-number {
    width: 40px;
    height: 40px;
    background: var(--secondary-color);
    color: var(--dark-bg);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 700;
    margin: 0 auto 1.5rem;
}

.step h3 {
    color: var(--white);
    margin-bottom: 1rem;
}

.step p {
    color: var(--text-secondary);
}

/* Testimonials Section */
.testimonials {
    padding: 6rem 2rem;
    background-color: var(--dark-surface);
    position: relative;
}

.testimonials h2 {
    text-align: center;
    margin-bottom: 4rem;
    color: var(--white);
    font-size: 2.5rem;
}

.testimonials-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
    max-width: 1200px;
    margin: 0 auto;
}

.testimonial-card {
    background: var(--dark-bg);
    padding: 2rem;
    border-radius: 12px;
    transition: all 0.3s ease;
}

.testimonial-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 8px 32px rgba(0,0,0,0.2);
}

.quote {
    margin-bottom: 1.5rem;
}

.quote i {
    color: var(--secondary-color);
    font-size: 1.5rem;
    margin-bottom: 1rem;
}

.quote p {
    color: var(--text-secondary);
    font-style: italic;
    line-height: 1.6;
}

.author {
    border-top: 1px solid rgba(255,255,255,0.1);
    padding-top: 1rem;
}

.author strong {
    color: var(--white);
    display: block;
    margin-bottom: 0.5rem;
}

.author span {
    color: var(--text-secondary);
    font-size: 0.9rem;
}

/* Applications Section */
.applications {
    padding: 6rem 2rem;
    background-color: var(--dark-surface);
    position: relative;
}

.applications h2 {
    text-align: center;
    margin-bottom: 4rem;
    color: var(--white);
    font-size: 2.5rem;
}

.applications-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 2rem;
    max-width: 1200px;
    margin: 0 auto;
}

.application-card {
    background: var(--dark-bg);
    padding: 2rem;
    border-radius: 12px;
    transition: all 0.3s ease;
    text-align: center;
}

.application-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 8px 32px rgba(0,0,0,0.2);
    border: 1px solid rgba(255,255,255,0.1);
}

.application-card i {
    color: var(--secondary-color);
    font-size: 2.5rem;
    margin-bottom: 1.5rem;
    display: block;
}

.application-card h3 {
    color: var(--white);
    margin-bottom: 1rem;
    font-size: 1.3rem;
}

.application-card p {
    color: var(--text-secondary);
    font-size: 0.95rem;
    line-height: 1.6;
}

/* Footer Enhancement */
.footer-content {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 2rem;
    max-width: 1200px;
    margin: 0 auto;
}

.footer-section h3 {
    color: var(--white);
    margin-bottom: 1.5rem;
    font-size: 1.2rem;
}

.footer-section p {
    margin-bottom: 0.5rem;
    font-size: 0.9rem;
}

.footer-section a {
    color: var(--secondary-color);
    text-decoration: none;
}

.footer-section i {
    color: var(--secondary-color);
    margin-right: 0.5rem;
}

.social-links {
    display: flex;
    gap: 1rem;
    justify-content: center;
}

.social-links a {
    color: var(--text-secondary);
    font-size: 1.5rem;
    transition: all 0.3s ease;
}

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

/* Responsive Adjustments */
@media (max-width: 768px) {
    .stats-container,
    .process-steps,
    .testimonials-grid,
    .applications-grid {
        grid-template-columns: 1fr;
    }

    .footer-content {
        text-align: center;
    }

    .social-links {
        justify-content: center;
    }
}

.footer-section h4 {
    color: var(--secondary-color);
    margin: 1rem 0 0.8rem;
    font-size: 1rem;
}

.contact-region {
    margin-top: 1rem;
    margin-bottom: 0.3rem;
}

.contact-region strong {
    color: var(--white);
    font-size: 0.95rem;
}

/* Product Carousel */
.product-carousel-container {
    position: relative;
    max-width: 1200px;
    margin: 0 auto;
    overflow: hidden;
}

.product-carousel {
    display: flex;
    transition: transform 0.5s ease;
    gap: 1.5rem;
    padding: 0.5rem;
}

.carousel-btn {
    position: absolute;
    top: 50%;
    transform: translateY(-50%);
    background-color: rgba(0, 0, 0, 0.6);
    color: var(--secondary-color);
    border: none;
    width: 40px;
    height: 40px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    z-index: 10;
    transition: all 0.3s ease;
}

.carousel-btn:hover {
    background-color: var(--secondary-color);
    color: var(--dark-bg);
}

.prev-btn {
    left: 10px;
}

.next-btn {
    right: 10px;
}

.carousel-indicators {
    display: flex;
    justify-content: center;
    gap: 0.5rem;
    margin-top: 1.5rem;
}

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

.indicator.active {
    background-color: var(--secondary-color);
    transform: scale(1.2);
}

@media (max-width: 992px) {
    .product-card {
        flex: 0 0 calc(50% - 0.75rem);
        max-width: calc(50% - 0.75rem);
    }
    
    .carousel-btn {
        width: 35px;
        height: 35px;
    }
}

@media (max-width: 768px) {
    .product-card {
        flex: 0 0 100%;
        max-width: 100%;
    }
    
    .carousel-btn {
        width: 30px;
        height: 30px;
        top: 45%;
    }
    
    .prev-btn {
        left: 5px;
    }
    
    .next-btn {
        right: 5px;
    }
    
    .product-carousel {
        padding: 0 1rem;
    }
}

.carousel-indicators {
    display: flex;
    justify-content: center;
    gap: 0.5rem;
    margin-top: 1.5rem;
}

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

.indicator.active {
    background-color: var(--secondary-color);
    transform: scale(1.2);
}

@media (max-width: 768px) {
    .carousel-indicators {
        gap: 0.8rem;
        margin-top: 2rem;
        padding: 0.5rem 0;
    }
    
    .indicator {
        width: 12px;
        height: 12px;
        border: 1px solid var(--secondary-color);
    }
    
    .indicator.active {
        transform: scale(1.3);
        box-shadow: 0 0 8px rgba(255, 215, 0, 0.6);
    }
}