/* ===== CSS Variables ===== */
:root {
    --primary-color: #2563eb;
    --primary-dark: #1d4ed8;
    --primary-light: #3b82f6;
    --secondary-color: #1e293b;
    --accent-color: #06b6d4;
    --text-dark: #0f172a;
    --text-light: #64748b;
    --text-white: #ffffff;
    --bg-light: #f8fafc;
    --bg-gradient: linear-gradient(135deg, #2563eb 0%, #06b6d4 100%);
    --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.05);
    --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1);
    --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.1);
    --transition: all 0.3s ease;
    --border-radius: 12px;
}

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

html {
    scroll-behavior: smooth;
}

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

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

ul {
    list-style: none;
}

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

/* ===== Navigation ===== */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    background: var(--text-white);
    box-shadow: var(--shadow-md);
    z-index: 1000;
    transition: var(--transition);
}

.nav-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 70px;
}

.logo {
    display: flex;
    align-items: center;
    gap: 12px;
}

.logo-img {
    width: 40px;
    height: 40px;
    border-radius: 8px;
}

.logo-text {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--primary-color);
}

.nav-menu {
    display: flex;
    align-items: center;
    gap: 8px;
}

.nav-item {
    position: relative;
}

.nav-link {
    display: flex;
    align-items: center;
    gap: 6px;
    padding: 12px 18px;
    font-size: 0.95rem;
    font-weight: 500;
    color: var(--text-dark);
    border-radius: 8px;
    transition: var(--transition);
}

.nav-link:hover {
    background: var(--bg-light);
    color: var(--primary-color);
}

.nav-link i {
    font-size: 0.7rem;
    transition: var(--transition);
}

.dropdown:hover .nav-link i {
    transform: rotate(180deg);
}

.dropdown-menu {
    position: absolute;
    top: 100%;
    left: 0;
    min-width: 200px;
    background: var(--text-white);
    border-radius: var(--border-radius);
    box-shadow: var(--shadow-xl);
    padding: 8px 0;
    opacity: 0;
    visibility: hidden;
    transform: translateY(10px);
    transition: var(--transition);
}

.dropdown:hover .dropdown-menu {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
}

.dropdown-menu a {
    display: block;
    padding: 12px 20px;
    font-size: 0.9rem;
    color: var(--text-dark);
    transition: var(--transition);
}

.dropdown-menu a:hover {
    background: var(--bg-light);
    color: var(--primary-color);
    padding-left: 25px;
}

.contact-btn {
    display: inline-block;
    padding: 12px 28px;
    background: var(--bg-gradient);
    color: var(--text-white);
    font-weight: 600;
    border-radius: 50px;
    transition: var(--transition);
    box-shadow: 0 4px 15px rgba(37, 99, 235, 0.3);
}

.contact-btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(37, 99, 235, 0.4);
}

/* Hamburger Menu */
.hamburger {
    display: none;
    flex-direction: column;
    gap: 5px;
    cursor: pointer;
    padding: 10px;
}

.hamburger span {
    display: block;
    width: 25px;
    height: 3px;
    background: var(--text-dark);
    border-radius: 3px;
    transition: var(--transition);
}

.hamburger.active span:nth-child(1) {
    transform: rotate(45deg) translate(5px, 5px);
}

.hamburger.active span:nth-child(2) {
    opacity: 0;
}

.hamburger.active span:nth-child(3) {
    transform: rotate(-45deg) translate(7px, -7px);
}

/* Mobile Menu */
.mobile-menu {
    display: none;
    position: fixed;
    top: 70px;
    left: 0;
    right: 0;
    bottom: 0;
    background: var(--text-white);
    z-index: 999;
    overflow-y: auto;
    transform: translateX(100%);
    transition: var(--transition);
}

.mobile-menu.active {
    transform: translateX(0);
}

.mobile-menu-content {
    padding: 20px;
}

.mobile-nav-item {
    border-bottom: 1px solid var(--bg-light);
}

.mobile-nav-link {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 15px 10px;
    font-weight: 500;
    color: var(--text-dark);
}

.mobile-dropdown {
    display: none;
    padding: 0 20px 15px;
}

.mobile-nav-item.active .mobile-dropdown {
    display: block;
}

.mobile-nav-item.active .mobile-nav-link i {
    transform: rotate(180deg);
}

.mobile-dropdown a {
    display: block;
    padding: 10px 0;
    color: var(--text-light);
    font-size: 0.9rem;
}

.mobile-contact-btn {
    display: block;
    margin-top: 20px;
    padding: 15px 30px;
    background: var(--bg-gradient);
    color: var(--text-white);
    text-align: center;
    font-weight: 600;
    border-radius: 50px;
}

/* ===== Hero Section ===== */
.hero {
    position: relative;
    min-height: 100vh;
    display: flex;
    align-items: center;
    padding: 100px 20px 60px;
    background: linear-gradient(135deg, #f0f9ff 0%, #e0f2fe 50%, #f0fdfa 100%);
    overflow: hidden;
}

.hero-content {
    max-width: 1200px;
    margin: 0 auto;
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
    align-items: center;
    position: relative;
    z-index: 2;
}

.hero-text h1 {
    font-size: 3rem;
    font-weight: 700;
    line-height: 1.2;
    color: var(--text-dark);
    margin-bottom: 24px;
    background: var(--bg-gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.hero-text p {
    font-size: 1.2rem;
    color: var(--text-light);
    margin-bottom: 40px;
    line-height: 1.8;
}

.cta-btn {
    display: inline-block;
    padding: 16px 40px;
    background: var(--bg-gradient);
    color: var(--text-white);
    font-size: 1.1rem;
    font-weight: 600;
    border-radius: 50px;
    transition: var(--transition);
    box-shadow: 0 4px 20px rgba(37, 99, 235, 0.3);
}

.cta-btn:hover {
    transform: translateY(-3px);
    box-shadow: 0 8px 30px rgba(37, 99, 235, 0.4);
}

.hero-image img {
    width: 100%;
    border-radius: 20px;
    box-shadow: var(--shadow-xl);
}

.hero-bg-shapes {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    pointer-events: none;
}

.shape {
    position: absolute;
    border-radius: 50%;
    opacity: 0.1;
}

.shape-1 {
    width: 400px;
    height: 400px;
    background: var(--primary-color);
    top: -100px;
    right: -100px;
}

.shape-2 {
    width: 300px;
    height: 300px;
    background: var(--accent-color);
    bottom: -50px;
    left: -50px;
}

.shape-3 {
    width: 200px;
    height: 200px;
    background: var(--primary-color);
    top: 50%;
    left: 30%;
}

/* ===== Section Styles ===== */
.section-title {
    font-size: 2.5rem;
    font-weight: 700;
    text-align: center;
    margin-bottom: 60px;
    color: var(--text-dark);
    position: relative;
}

.section-title::after {
    content: '';
    position: absolute;
    bottom: -15px;
    left: 50%;
    transform: translateX(-50%);
    width: 80px;
    height: 4px;
    background: var(--bg-gradient);
    border-radius: 2px;
}

/* ===== Services Section ===== */
.services {
    padding: 100px 20px;
    background: var(--text-white);
}

.services-cards {
    display: flex;
    gap: 30px;
    justify-content: center;
    height: 500px;
}

.service-card {
    position: relative;
    flex: 1;
    max-width: 500px;
    border-radius: 20px;
    overflow: hidden;
    cursor: pointer;
    transition: flex 0.5s ease, transform 0.3s ease;
}

.service-card:hover {
    flex: 1.5;
}

.services-cards:has(.service-card:hover) .service-card:not(:hover) {
    flex: 0.7;
}

.card-bg {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background-size: cover;
    background-position: center;
    transition: var(--transition);
}

.service-card:hover .card-bg {
    transform: scale(1.1);
}

.card-overlay {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(to top, rgba(0, 0, 0, 0.9) 0%, rgba(0, 0, 0, 0.3) 50%, rgba(0, 0, 0, 0.1) 100%);
    transition: var(--transition);
}

.service-card:hover .card-overlay {
    background: linear-gradient(to top, rgba(37, 99, 235, 0.95) 0%, rgba(37, 99, 235, 0.7) 50%, rgba(37, 99, 235, 0.4) 100%);
}

.card-content {
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    padding: 40px 30px;
    color: var(--text-white);
    z-index: 2;
}

.card-content h3 {
    font-size: 1.8rem;
    font-weight: 700;
    margin-bottom: 15px;
    transition: var(--transition);
}

.card-description {
    opacity: 0;
    max-height: 0;
    overflow: hidden;
    transition: all 0.5s ease;
}

.service-card:hover .card-description {
    opacity: 1;
    max-height: 300px;
}

.card-description p {
    font-size: 0.95rem;
    line-height: 1.7;
    margin-bottom: 20px;
    opacity: 0.95;
}

.card-links {
    display: flex;
    flex-direction: column;
    gap: 10px;
}

.card-links a {
    display: flex;
    align-items: center;
    gap: 10px;
    font-weight: 500;
    color: var(--text-white);
    transition: var(--transition);
}

.card-links a:hover {
    transform: translateX(10px);
}

.card-links a i {
    font-size: 0.8rem;
}

/* ===== Why Choose Us Section ===== */
.why-us {
    padding: 100px 20px;
    background: linear-gradient(135deg, #f0f9ff 0%, #e0f2fe 100%);
}

.why-us-cards {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 30px;
}

.why-card {
    background: var(--text-white);
    padding: 50px 40px;
    border-radius: 20px;
    text-align: center;
    box-shadow: var(--shadow-lg);
    transition: var(--transition);
}

.why-card:hover {
    transform: translateY(-10px);
    box-shadow: var(--shadow-xl);
}

.why-icon {
    width: 80px;
    height: 80px;
    margin: 0 auto 25px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--bg-gradient);
    border-radius: 50%;
    font-size: 2rem;
    color: var(--text-white);
}

.why-card h3 {
    font-size: 1.4rem;
    font-weight: 600;
    margin-bottom: 15px;
    color: var(--text-dark);
}

.why-card p {
    font-size: 0.95rem;
    color: var(--text-light);
    line-height: 1.8;
}

/* ===== Testimonials Section ===== */
.testimonials {
    padding: 100px 20px;
    background: var(--text-white);
    overflow: hidden;
}

.testimonials-wrapper {
    position: relative;
    overflow: hidden;
    cursor: grab;
    margin: 0 -20px;
    padding: 20px;
}

.testimonials-wrapper:active {
    cursor: grabbing;
}

.testimonials-track {
    display: flex;
    gap: 30px;
    transition: transform 0.3s ease;
}

.testimonial-card {
    flex: 0 0 400px;
    background: var(--bg-light);
    border-radius: 20px;
    padding: 40px;
    box-shadow: var(--shadow-md);
    transition: var(--transition);
}

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

.testimonial-content {
    margin-bottom: 25px;
}

.testimonial-content p {
    font-size: 0.95rem;
    color: var(--text-dark);
    line-height: 1.8;
    font-style: italic;
}

.testimonial-author {
    display: flex;
    align-items: center;
    gap: 15px;
}

.author-avatar {
    width: 50px;
    height: 50px;
    background: var(--bg-gradient);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--text-white);
    font-weight: 700;
    font-size: 1rem;
}

.author-info {
    display: flex;
    flex-direction: column;
}

.author-info strong {
    font-size: 1rem;
    color: var(--text-dark);
}

.author-info span {
    font-size: 0.85rem;
    color: var(--text-light);
}

.testimonials-nav {
    display: flex;
    justify-content: center;
    gap: 15px;
    margin-top: 40px;
}

.testimonials-nav button {
    width: 50px;
    height: 50px;
    border: none;
    background: var(--bg-gradient);
    color: var(--text-white);
    border-radius: 50%;
    font-size: 1rem;
    cursor: pointer;
    transition: var(--transition);
    box-shadow: var(--shadow-md);
}

.testimonials-nav button:hover {
    transform: scale(1.1);
    box-shadow: var(--shadow-lg);
}

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

.footer-content {
    max-width: 1200px;
    margin: 0 auto;
    display: grid;
    grid-template-columns: 1.5fr 1fr 1fr 1fr;
    gap: 50px;
}

.footer-section h3 {
    font-size: 1.2rem;
    font-weight: 600;
    margin-bottom: 25px;
    color: var(--text-white);
    position: relative;
    padding-bottom: 12px;
}

.footer-section h3::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 40px;
    height: 3px;
    background: var(--bg-gradient);
    border-radius: 2px;
}

.contact-items {
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.contact-item {
    display: flex;
    align-items: center;
    gap: 12px;
    font-size: 0.9rem;
    color: rgba(255, 255, 255, 0.8);
}

.contact-item i {
    width: 20px;
    color: var(--accent-color);
}

.language-grid {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
}

.language-grid span {
    font-size: 0.85rem;
    color: rgba(255, 255, 255, 0.7);
    padding: 5px 10px;
    background: rgba(255, 255, 255, 0.1);
    border-radius: 5px;
    transition: var(--transition);
}

.language-grid span:hover {
    background: rgba(255, 255, 255, 0.2);
}

.fields-list,
.formats-list {
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.fields-list span,
.formats-list span {
    font-size: 0.9rem;
    color: rgba(255, 255, 255, 0.7);
    transition: var(--transition);
}

.fields-list span:hover,
.formats-list span:hover {
    color: var(--accent-color);
    padding-left: 5px;
}

.footer-bottom {
    margin-top: 60px;
    padding: 25px 20px;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    text-align: center;
}

.footer-bottom p {
    font-size: 0.85rem;
    color: rgba(255, 255, 255, 0.6);
}

/* ===== Responsive Design ===== */
@media (max-width: 1024px) {
    .hero-content {
        grid-template-columns: 1fr;
        text-align: center;
    }
    
    .hero-text h1 {
        font-size: 2.5rem;
    }
    
    .hero-image {
        order: -1;
        max-width: 500px;
        margin: 0 auto;
    }
    
    .why-us-cards {
        grid-template-columns: 1fr;
        max-width: 500px;
        margin: 0 auto;
    }
    
    .footer-content {
        grid-template-columns: 1fr 1fr;
    }
}

@media (max-width: 768px) {
    .nav-menu,
    .navbar .contact-btn {
        display: none;
    }
    
    .hamburger {
        display: flex;
    }
    
    .mobile-menu {
        display: block;
    }
    
    .hero {
        padding: 100px 20px 40px;
        min-height: auto;
    }
    
    .hero-text h1 {
        font-size: 2rem;
    }
    
    .hero-text p {
        font-size: 1rem;
    }
    
    .section-title {
        font-size: 2rem;
    }
    
    .services-cards {
        flex-direction: column;
        height: auto;
    }
    
    .service-card {
        height: 400px;
    }
    
    .service-card:hover,
    .services-cards:has(.service-card:hover) .service-card:not(:hover) {
        flex: 1;
    }
    
    .card-description {
        opacity: 1;
        max-height: none;
    }
    
    .testimonial-card {
        flex: 0 0 320px;
    }
    
    .footer-content {
        grid-template-columns: 1fr;
        text-align: center;
    }
    
    .footer-section h3::after {
        left: 50%;
        transform: translateX(-50%);
    }
    
    .contact-items {
        align-items: center;
    }
    
    .language-grid {
        justify-content: center;
    }
    
    .fields-list,
    .formats-list {
        align-items: center;
    }
}

@media (max-width: 480px) {
    .hero-text h1 {
        font-size: 1.75rem;
    }
    
    .cta-btn {
        padding: 14px 30px;
        font-size: 1rem;
    }
    
    .service-card {
        height: 350px;
    }
    
    .card-content {
        padding: 25px 20px;
    }
    
    .why-card {
        padding: 35px 25px;
    }
    
    .testimonial-card {
        flex: 0 0 280px;
        padding: 25px;
    }
}

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

.hero-text,
.hero-image {
    animation: fadeInUp 0.8s ease forwards;
}

.hero-image {
    animation-delay: 0.2s;
}