/* Reset and base styles */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, sans-serif;
    line-height: 1.6;
    color: #333;
    background-color: #fff;
}

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

/* Header */
header {
    background-color: #fff;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
    position: sticky;
    top: 0;
    z-index: 100;
}

header .container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1rem 20px;
}

.logo {
    display: flex;
    align-items: center;
    gap: 0.75rem;
}

.logo img {
    height: 40px;
    width: auto;
}

.logo-text {
    font-size: 1.8rem;
    font-weight: 700;
    color: #2c5282;
}

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

nav ul {
    display: flex;
    list-style: none;
    gap: 2rem;
}

nav a {
    text-decoration: none;
    color: #4a5568;
    font-weight: 500;
    transition: color 0.3s ease;
}

nav a:hover {
    color: #2c5282;
}

/* Language switch */
.language-switch {
    margin-left: 1rem;
}

#lang-toggle {
    background-color: transparent;
    border: 2px solid #2c5282;
    border-radius: 6px;
    cursor: pointer;
    padding: 0.5rem;
    transition: all 0.3s ease;
}

#lang-toggle:hover {
    background-color: #f7fafc;
    transform: scale(1.1);
}

#lang-toggle .flag {
    font-size: 1.2rem;
    display: block;
}

/* Hero section */
.hero {
    background: linear-gradient(135deg, #f7fafc 0%, #edf2f7 100%);
    padding: 4rem 0;
    text-align: center;
}

.hero h2 {
    font-size: 2.5rem;
    font-weight: 700;
    color: #2d3748;
    margin-bottom: 1rem;
}

.hero p {
    font-size: 1.2rem;
    color: #4a5568;
    margin-bottom: 2rem;
    max-width: 600px;
    margin-left: auto;
    margin-right: auto;
}

.cta-button {
    display: inline-block;
    background-color: #2c5282;
    color: white;
    padding: 0.875rem 2rem;
    text-decoration: none;
    border-radius: 6px;
    font-weight: 600;
    transition: background-color 0.3s ease;
}

.cta-button:hover {
    background-color: #2a4a7a;
}

/* Services section */
.services {
    padding: 4rem 0;
}

.services h2 {
    text-align: center;
    font-size: 2rem;
    color: #2d3748;
    margin-bottom: 3rem;
}

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

.service-card {
    background: #f7fafc;
    padding: 2rem;
    border-radius: 8px;
    border-left: 4px solid #2c5282;
}

.service-card h3 {
    font-size: 1.25rem;
    color: #2d3748;
    margin-bottom: 1rem;
}

.service-card p {
    color: #4a5568;
    line-height: 1.7;
}

/* About section */
.about {
    background-color: #f7fafc;
    padding: 4rem 0;
}

.about h2 {
    text-align: center;
    font-size: 2rem;
    color: #2d3748;
    margin-bottom: 2rem;
}

.about p {
    max-width: 800px;
    margin: 0 auto 1.5rem;
    color: #4a5568;
    font-size: 1.1rem;
    line-height: 1.7;
    text-align: center;
}

/* Client logos subsection */
.client-logos {
    margin-top: 3rem;
}

.client-logos h3 {
    text-align: center;
    font-size: 1.4rem;
    color: #2d3748;
    margin-bottom: 1.5rem;
}

.client-logos-list {
    list-style: none;
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    align-items: center;
    gap: 2.5rem;
    padding: 0;
    margin: 0;
}

.client-logos-list li {
    display: flex;
    align-items: center;
    justify-content: center;
}

.client-logos-list img {
    max-height: 80px;
    width: auto;
    filter: grayscale(20%);
    opacity: 0.9;
    transition: filter 0.3s ease, opacity 0.3s ease, transform 0.3s ease;
}

.client-logos-list img:hover {
    filter: grayscale(0%);
    opacity: 1;
    transform: scale(1.05);
}

.client-logos-list .more {
    font-weight: 600;
    color: #2c5282;
    font-size: 1rem;
    text-align: center;
    max-width: 160px;
}

/* Contact section */
.contact {
    padding: 4rem 0;
    text-align: center;
}

.contact h2 {
    font-size: 2rem;
    color: #2d3748;
    margin-bottom: 1rem;
}

.contact > .container > p {
    font-size: 1.1rem;
    color: #4a5568;
    margin-bottom: 3rem;
}

.contact-info {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 2rem;
    max-width: 900px;
    margin: 0 auto;
}

.contact-item h4 {
    font-size: 1.1rem;
    color: #2d3748;
    margin-bottom: 0.5rem;
}

.contact-item p {
    color: #4a5568;
    font-weight: 500;
}

/* Footer */
footer {
    background-color: #2d3748;
    color: #a0aec0;
    text-align: center;
    padding: 2rem 0;
}

/* Responsive design */
@media (max-width: 768px) {
    header .container {
        flex-direction: column;
        gap: 1rem;
    }
    
    nav {
        flex-direction: column;
        gap: 1rem;
    }
    
    nav ul {
        gap: 1rem;
    }
    
    .hero h2 {
        font-size: 2rem;
    }
    
    .hero p {
        font-size: 1.1rem;
    }
    
    .service-grid {
        grid-template-columns: 1fr;
    }
    
    .contact-info {
        grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    }
    
    .client-logos-list {
        gap: 1.5rem;
    }
    .client-logos-list img {
        max-height: 60px;
    }
}