/* CSS Reset and Base Styles */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

:root {
    --primary-blue: #003366;
    --secondary-blue: #004d99;
    --accent-orange: #ff6b35;
    --accent-orange-hover: #e55a2b;
    --text-dark: #1a1a1a;
    --text-light: #666;
    --bg-light: #f8f9fa;
    --white: #ffffff;
    --shadow-sm: 0 2px 4px rgba(0, 0, 0, 0.1);
    --shadow-md: 0 4px 12px rgba(0, 0, 0, 0.15);
    --shadow-lg: 0 8px 24px rgba(0, 0, 0, 0.2);
    --border-radius: 8px;
    --transition: all 0.3s ease;
}

html {
    scroll-behavior: smooth;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
    line-height: 1.6;
    color: var(--text-dark);
    background: var(--white);
}

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

a {
    text-decoration: none;
    color: inherit;
}

ul {
    list-style: none;
}

/* Container */
.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

/* Header */
.header {
    background: var(--white);
    box-shadow: var(--shadow-sm);
    position: sticky;
    top: 0;
    z-index: 1000;
    transition: var(--transition);
}

.header.scrolled {
    box-shadow: var(--shadow-md);
}

.navbar {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1rem 0;
}

.logo {
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 1.5rem;
    font-weight: bold;
    color: var(--primary-blue);
}

.logo-image {
    height: 50px;
    width: auto;
    object-fit: contain;
}

.logo-icon {
    background: var(--accent-orange);
    color: var(--white);
    width: 40px;
    height: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: var(--border-radius);
    font-size: 1.25rem;
}

.footer-logo-image {
    height: 60px;
    width: auto;
    object-fit: contain;
    margin-bottom: 1rem;
}

.mobile-menu-toggle {
    display: none;
    flex-direction: column;
    gap: 4px;
    background: none;
    border: none;
    cursor: pointer;
    padding: 8px;
}

.mobile-menu-toggle span {
    width: 25px;
    height: 3px;
    background: var(--primary-blue);
    transition: var(--transition);
}

.mobile-menu-toggle.active span:nth-child(1) {
    transform: rotate(45deg) translate(6px, 6px);
}

.mobile-menu-toggle.active span:nth-child(2) {
    opacity: 0;
}

.mobile-menu-toggle.active span:nth-child(3) {
    transform: rotate(-45deg) translate(6px, -6px);
}

.nav-menu {
    display: flex;
    align-items: center;
    gap: 2rem;
}

.nav-link {
    color: var(--text-dark);
    font-weight: 500;
    transition: var(--transition);
    padding: 0.5rem 0;
    position: relative;
}

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

.nav-link:hover::after,
.nav-link.active::after {
    width: 100%;
}

.nav-link:hover,
.nav-link.active {
    color: var(--accent-orange);
}

/* Buttons */
.btn {
    display: inline-block;
    padding: 12px 24px;
    border-radius: var(--border-radius);
    font-weight: 600;
    text-align: center;
    transition: var(--transition);
    border: 2px solid transparent;
    cursor: pointer;
}

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

.btn-primary:hover {
    background: var(--accent-orange-hover);
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
}

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

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

.btn-outline {
    background: transparent;
    color: var(--primary-blue);
    border-color: var(--primary-blue);
}

.btn-outline:hover {
    background: var(--primary-blue);
    color: var(--white);
}

.btn-lg {
    padding: 16px 32px;
    font-size: 1.1rem;
}

.btn-sm {
    padding: 8px 16px;
    font-size: 0.9rem;
}

.btn-block {
    display: block;
    width: 100%;
}

.nav-cta {
    padding: 10px 20px;
}

/* Hero Section */
.hero {
    position: relative;
    min-height: 600px;
    display: flex;
    align-items: center;
    color: var(--white);
    overflow: hidden;
}

.hero-bg {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-size: cover;
    background-position: center;
    z-index: -2;
}

.hero-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(135deg, rgba(0, 51, 102, 0.9) 0%, rgba(0, 77, 153, 0.7) 100%);
    z-index: -1;
}

.hero-content {
    text-align: center;
    max-width: 800px;
    margin: 0 auto;
    padding: 60px 0;
}

.hero-title {
    font-size: 3rem;
    font-weight: 800;
    margin-bottom: 1rem;
    line-height: 1.2;
}

.hero-subtitle {
    font-size: 1.5rem;
    margin-bottom: 2rem;
    opacity: 0.95;
}

.hero-buttons {
    display: flex;
    gap: 1rem;
    justify-content: center;
    flex-wrap: wrap;
}

/* Hero Carousel Section */
.hero-carousel {
    position: relative;
    width: 100%;
    min-height: 600px;
    overflow: hidden;
}

.carousel-container {
    position: relative;
    width: 100%;
    height: 600px;
}

.carousel-slides {
    position: relative;
    width: 100%;
    height: 100%;
}

.carousel-slide {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    opacity: 0;
    visibility: hidden;
    transition: opacity 1s ease-in-out, visibility 0s 1s;
    display: flex;
    align-items: center;
    color: var(--white);
}

.carousel-slide.active {
    opacity: 1;
    visibility: visible;
    transition: opacity 1s ease-in-out, visibility 0s;
    z-index: 1;
}

.slide-bg {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-size: cover;
    background-position: center;
    z-index: -2;
    animation: zoomIn 8s ease-in-out infinite;
}

@keyframes zoomIn {
    0%, 100% {
        transform: scale(1);
    }
    50% {
        transform: scale(1.1);
    }
}

.slide-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(135deg, rgba(0, 51, 102, 0.85) 0%, rgba(0, 77, 153, 0.75) 100%);
    z-index: -1;
}

.slide-content {
    text-align: center;
    max-width: 900px;
    margin: 0 auto;
    padding: 60px 20px;
    animation: fadeInUp 1s ease-out;
}

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

.slide-title {
    font-size: 3.5rem;
    font-weight: 800;
    margin-bottom: 1.5rem;
    line-height: 1.2;
    text-shadow: 2px 2px 4px rgba(0, 0, 0, 0.3);
    animation: fadeInUp 1s ease-out 0.2s both;
}

.slide-subtitle {
    font-size: 1.5rem;
    margin-bottom: 2.5rem;
    opacity: 0.95;
    text-shadow: 1px 1px 2px rgba(0, 0, 0, 0.3);
    animation: fadeInUp 1s ease-out 0.4s both;
}

.slide-buttons {
    display: flex;
    gap: 1rem;
    justify-content: center;
    flex-wrap: wrap;
    animation: fadeInUp 1s ease-out 0.6s both;
}

/* Carousel Navigation Buttons */
.carousel-nav {
    position: absolute;
    top: 50%;
    transform: translateY(-50%);
    background: rgba(255, 255, 255, 0.2);
    border: 2px solid rgba(255, 255, 255, 0.5);
    color: var(--white);
    width: 50px;
    height: 50px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    z-index: 10;
    transition: all 0.3s ease;
    backdrop-filter: blur(10px);
}

.carousel-nav:hover {
    background: rgba(255, 107, 53, 0.9);
    border-color: var(--accent-orange);
    transform: translateY(-50%) scale(1.1);
}

.carousel-prev {
    left: 30px;
}

.carousel-next {
    right: 30px;
}

.carousel-nav svg {
    width: 24px;
    height: 24px;
}

/* Carousel Indicators */
.carousel-indicators {
    position: absolute;
    bottom: 30px;
    left: 50%;
    transform: translateX(-50%);
    display: flex;
    gap: 12px;
    z-index: 10;
}

.indicator {
    width: 12px;
    height: 12px;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.4);
    border: 2px solid rgba(255, 255, 255, 0.6);
    cursor: pointer;
    transition: all 0.3s ease;
    padding: 0;
}

.indicator:hover {
    background: rgba(255, 255, 255, 0.6);
    transform: scale(1.2);
}

.indicator.active {
    background: var(--accent-orange);
    border-color: var(--accent-orange);
    width: 32px;
    border-radius: 6px;
}

/* Responsive Carousel */
@media (max-width: 768px) {
    .hero-carousel,
    .carousel-container {
        min-height: 500px;
        height: 500px;
    }
    
    .slide-title {
        font-size: 2.5rem;
    }
    
    .slide-subtitle {
        font-size: 1.2rem;
    }
    
    .carousel-nav {
        width: 40px;
        height: 40px;
    }
    
    .carousel-prev {
        left: 15px;
    }
    
    .carousel-next {
        right: 15px;
    }
    
    .carousel-indicators {
        bottom: 20px;
    }
    
    .slide-buttons {
        flex-direction: column;
        align-items: center;
    }
    
    .slide-buttons .btn {
        width: 100%;
        max-width: 300px;
    }
}

/* Testimonials Section */
.testimonials-section {
    background: var(--bg-light);
    padding: 80px 0;
    overflow: hidden;
}

.testimonials-carousel {
    position: relative;
    width: 100%;
    overflow: hidden;
    padding: 20px 0;
}

.testimonials-track {
    display: flex;
    gap: 30px;
    animation: scrollTestimonials 30s linear infinite;
    will-change: transform;
}

.testimonials-track:hover {
    animation-play-state: paused;
}

@keyframes scrollTestimonials {
    0% {
        transform: translateX(0);
    }
    100% {
        transform: translateX(calc(-100% - 30px));
    }
}

.testimonial-card {
    min-width: 350px;
    background: var(--white);
    padding: 30px;
    border-radius: var(--border-radius);
    box-shadow: var(--shadow-md);
    transition: all 0.3s ease;
    animation: floatCard 6s ease-in-out infinite;
    animation-delay: calc(var(--delay, 0) * 0.5s);
}

.testimonial-card:nth-child(1) {
    --delay: 0;
}

.testimonial-card:nth-child(2) {
    --delay: 1;
}

.testimonial-card:nth-child(3) {
    --delay: 2;
}

.testimonial-card:nth-child(4) {
    --delay: 3;
}

.testimonial-card:nth-child(5) {
    --delay: 4;
}

.testimonial-card:nth-child(6) {
    --delay: 5;
}

@keyframes floatCard {
    0%, 100% {
        transform: translateY(0);
    }
    50% {
        transform: translateY(-10px);
    }
}

.testimonial-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-lg);
}

.testimonial-content {
    margin-bottom: 20px;
}

.testimonial-stars {
    color: #ffc107;
    font-size: 1.2rem;
    margin-bottom: 15px;
    letter-spacing: 2px;
}

.testimonial-text {
    font-size: 1rem;
    line-height: 1.8;
    color: var(--text-dark);
    font-style: italic;
    margin-bottom: 0;
}

.testimonial-author {
    display: flex;
    align-items: center;
    gap: 15px;
    padding-top: 20px;
    border-top: 1px solid var(--bg-light);
}

.author-info {
    flex: 1;
}

.author-name {
    font-size: 1.1rem;
    font-weight: 600;
    color: var(--primary-blue);
    margin-bottom: 5px;
}

.author-date {
    font-size: 0.9rem;
    color: var(--text-light);
    margin: 0;
}

/* Ensure smooth infinite scroll */
.testimonials-track {
    width: fit-content;
}

/* Responsive Testimonials */
@media (max-width: 768px) {
    .testimonials-section {
        padding: 60px 0;
    }
    
    .testimonial-card {
        min-width: 280px;
        padding: 25px;
    }
    
    .testimonials-track {
        gap: 20px;
    }
}

/* Section */
.section {
    padding: 80px 0;
}

.section-title {
    font-size: 2.5rem;
    color: var(--primary-blue);
    text-align: center;
    margin-bottom: 1rem;
}

.section-subtitle {
    font-size: 1.1rem;
    color: var(--text-light);
    text-align: center;
    margin-bottom: 3rem;
}

.section-label {
    display: inline-block;
    color: var(--accent-orange);
    font-weight: 700;
    font-size: 0.9rem;
    letter-spacing: 1px;
    margin-bottom: 0.5rem;
}

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

/* Services Grid */
.services-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
}

.service-card {
    background: var(--white);
    padding: 2rem;
    border-radius: var(--border-radius);
    box-shadow: var(--shadow-sm);
    transition: var(--transition);
    text-align: center;
}

.service-card:hover {
    transform: translateY(-8px);
    box-shadow: var(--shadow-lg);
}

.service-icon {
    width: 80px;
    height: 80px;
    margin: 0 auto 1.5rem;
    background: linear-gradient(135deg, var(--primary-blue), var(--secondary-blue));
    color: var(--white);
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 50%;
}

.service-card h3 {
    color: var(--primary-blue);
    margin-bottom: 1rem;
    font-size: 1.5rem;
}

.service-card p {
    color: var(--text-light);
    margin-bottom: 1.5rem;
}

.service-link {
    color: var(--accent-orange);
    font-weight: 600;
    transition: var(--transition);
}

.service-link:hover {
    opacity: 0.8;
}

/* About Preview */
.about-preview {
    background: var(--bg-light);
}

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

.about-preview-content h2 {
    color: var(--primary-blue);
    font-size: 2.5rem;
    margin-bottom: 1.5rem;
}

.about-preview-content p {
    color: var(--text-light);
    margin-bottom: 1rem;
    font-size: 1.1rem;
}

.check-list {
    margin: 2rem 0;
}

.check-list li {
    color: var(--text-dark);
    margin-bottom: 0.75rem;
    font-size: 1.05rem;
}

.about-preview-image {
    border-radius: var(--border-radius);
    overflow: hidden;
    box-shadow: var(--shadow-lg);
}

.about-preview-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

/* References Grid */
.references-preview {
    background: var(--white);
}

.references-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: 2rem;
}

.reference-card {
    background: var(--white);
    border-radius: var(--border-radius);
    overflow: hidden;
    box-shadow: var(--shadow-sm);
    transition: var(--transition);
}

.reference-card:hover {
    transform: translateY(-8px);
    box-shadow: var(--shadow-lg);
}

.reference-image {
    height: 250px;
    overflow: hidden;
}

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

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

.reference-content {
    padding: 1.5rem;
}

.reference-category {
    display: inline-block;
    background: var(--accent-orange);
    color: var(--white);
    padding: 4px 12px;
    border-radius: 4px;
    font-size: 0.85rem;
    font-weight: 600;
    margin-bottom: 0.75rem;
}

.reference-content h3 {
    color: var(--primary-blue);
    margin-bottom: 0.5rem;
    font-size: 1.3rem;
}

.reference-content p {
    color: var(--text-light);
    margin-bottom: 1rem;
}

/* Contact Preview */
.contact-preview {
    background: var(--bg-light);
}

.contact-preview-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
}

.contact-info {
    display: flex;
    flex-direction: column;
    gap: 2rem;
}

.contact-info-item {
    display: flex;
    gap: 1.5rem;
    align-items: flex-start;
}

.contact-info-icon {
    width: 50px;
    height: 50px;
    background: linear-gradient(135deg, var(--primary-blue), var(--secondary-blue));
    color: var(--white);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
}

.contact-info-item h4 {
    color: var(--primary-blue);
    margin-bottom: 0.5rem;
    font-size: 1.2rem;
}

.contact-info-item p {
    color: var(--text-light);
}

/* Forms */
.contact-form-wrapper {
    background: var(--white);
    padding: 2.5rem;
    border-radius: var(--border-radius);
    box-shadow: var(--shadow-md);
}

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

.form-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 1rem;
}

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

.form-group input,
.form-group textarea,
.form-group select {
    width: 100%;
    padding: 12px;
    border: 2px solid #e0e0e0;
    border-radius: var(--border-radius);
    font-family: inherit;
    font-size: 1rem;
    transition: var(--transition);
}

.form-group input:focus,
.form-group textarea:focus,
.form-group select:focus {
    outline: none;
    border-color: var(--accent-orange);
}

.form-group textarea {
    resize: vertical;
}

/* Footer */
.footer {
    background: var(--primary-blue);
    color: var(--white);
    padding: 60px 0 20px;
}

.footer-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 3rem;
    margin-bottom: 3rem;
}

.footer-logo {
    display: flex;
    flex-direction: column;
    align-items: flex-start;
    gap: 8px;
    font-size: 1.5rem;
    font-weight: bold;
    margin-bottom: 1rem;
}

.footer-logo .logo-text {
    font-size: 1.5rem;
    color: var(--white);
}

.footer-column h4 {
    margin-bottom: 1rem;
    font-size: 1.2rem;
}

.footer-column p {
    opacity: 0.9;
    line-height: 1.7;
}

.footer-links {
    display: flex;
    flex-direction: column;
    gap: 0.75rem;
}

.footer-links a {
    opacity: 0.9;
    transition: var(--transition);
}

.footer-links a:hover {
    opacity: 1;
    color: var(--accent-orange);
}

.footer-bottom {
    border-top: 1px solid rgba(255, 255, 255, 0.2);
    padding-top: 2rem;
    text-align: center;
    opacity: 0.8;
}

/* WhatsApp Button */
.whatsapp-button {
    position: fixed;
    bottom: 30px;
    right: 30px;
    background: #25d366;
    color: var(--white);
    width: 100px;
    height: 100px;
    border-radius: 50%;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 4px;
    box-shadow: var(--shadow-lg);
    transition: var(--transition);
    z-index: 999;
    font-size: 0.75rem;
    font-weight: 600;
    line-height: 1.2;
    text-align: center;
}

.whatsapp-button:hover {
    transform: scale(1.1);
    box-shadow: 0 12px 32px rgba(37, 211, 102, 0.4);
}

/* Success Message */
.success-message {
    background: #4caf50;
    color: white;
    padding: 1rem;
    border-radius: var(--border-radius);
    margin-bottom: 1rem;
    display: none;
}

.success-message.show {
    display: block;
}

/* Responsive Design */
@media (max-width: 768px) {
    .mobile-menu-toggle {
        display: flex;
    }
    
    .nav-menu {
        position: fixed;
        top: 73px;
        left: -100%;
        width: 100%;
        height: calc(100vh - 73px);
        background: var(--white);
        flex-direction: column;
        padding: 2rem;
        gap: 0;
        transition: var(--transition);
        box-shadow: var(--shadow-md);
    }
    
    .nav-menu.active {
        left: 0;
    }
    
    .nav-menu li {
        width: 100%;
        text-align: center;
        padding: 1rem 0;
        border-bottom: 1px solid #eee;
    }
    
    .nav-link::after {
        display: none;
    }
    
    .hero {
        min-height: 500px;
    }
    
    .hero-title {
        font-size: 2rem;
    }
    
    .hero-subtitle {
        font-size: 1.2rem;
    }
    
    .hero-buttons {
        flex-direction: column;
    }
    
    .section {
        padding: 50px 0;
    }
    
    .section-title {
        font-size: 2rem;
    }
    
    .services-grid {
        grid-template-columns: 1fr;
    }
    
    .about-preview-grid {
        grid-template-columns: 1fr;
        gap: 2rem;
    }
    
    .references-grid {
        grid-template-columns: 1fr;
    }
    
    .contact-preview-grid {
        grid-template-columns: 1fr;
        gap: 2rem;
    }
    
    .form-row {
        grid-template-columns: 1fr;
    }
    
    .footer-grid {
        grid-template-columns: 1fr;
        gap: 2rem;
    }
    
    .whatsapp-button {
        width: 80px;
        height: 80px;
        font-size: 0.65rem;
        bottom: 20px;
        right: 20px;
    }
    
    .whatsapp-button svg {
        width: 28px;
        height: 28px;
    }
}

@media (max-width: 480px) {
    .hero-title {
        font-size: 1.75rem;
    }
    
    .hero-subtitle {
        font-size: 1rem;
    }
    
    .btn-lg {
        padding: 14px 24px;
        font-size: 1rem;
    }
    
    .section-title {
        font-size: 1.75rem;
    }
}