/* ==========================================
   RESET & VARIABLES
   ========================================== */

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

:root {
    --primary-color: #1e5a8e;
    --secondary-color: #2980b9;
    --accent-color: #3498db;
    --text-dark: #2c3e50;
    --text-light: #7f8c8d;
    --bg-light: #f8f9fa;
    --white: #ffffff;
}

/* ==========================================
   BASIC STYLES
   ========================================== */

body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    line-height: 1.6;
    color: var(--text-dark);
}

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

section {
    padding: 80px 0;
}

section:nth-child(even):not(.hero) {
    background: var(--bg-light);
}

h2 {
    font-size: 2.5rem;
    color: var(--primary-color);
    margin-bottom: 2rem;
    text-align: center;
}

/* ==========================================
   HEADER & NAVIGATION
   ========================================== */

header {
    background: var(--white);
    box-shadow: 0 2px 10px rgba(0,0,0,0.1);
    position: sticky;
    top: 0;
    z-index: 1000;
}

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

.logo {
    height: 50px;
    filter: none;
}

.nav-links {
    display: flex;
    list-style: none;
    gap: 2rem;
    align-items: center;
}

.nav-links a {
    text-decoration: none;
    color: var(--text-dark);
    font-weight: 500;
    transition: color 0.3s;
}

.nav-links a:hover {
    color: var(--primary-color);
}

.lang-switch {
    background: var(--primary-color);
    color: white;
    border: none;
    padding: 0.5rem 1rem;
    border-radius: 5px;
    cursor: pointer;
    font-weight: bold;
    transition: background 0.3s;
}

.lang-switch:hover {
    background: var(--secondary-color);
}

.mobile-menu-btn {
    display: none;
    background: none;
    border: none;
    font-size: 1.5rem;
    cursor: pointer;
}

/* ==========================================
   HERO SECTION
   ========================================== */

.hero {
    background: linear-gradient(135deg, #0d3d5c, #1a5276);
    color: white;
    padding: 100px 0;
    text-align: center;
}

.hero .container {
    max-width: 1200px;
}

.hero h1 {
    font-size: 3.5rem;
    margin-bottom: 1rem;
    max-width: 1200px;
    margin-left: auto;
    margin-right: auto;
}

.hero p {
    font-size: 1.5rem;
    margin-bottom: 2rem;
}

.cta-button {
    background: white;
    color: var(--primary-color);
    padding: 1rem 2rem;
    text-decoration: none;
    border-radius: 5px;
    font-weight: bold;
    display: inline-block;
    transition: transform 0.3s;
}

.cta-button:hover {
    transform: translateY(-3px);
}

/* ==========================================
   ABOUT SECTION
   ========================================== */

.about-content {
    max-width: 900px;
    margin: 0 auto;
    text-align: justify;
    line-height: 1.8;
}

.about-content p {
    margin-bottom: 1.5rem;
}

/* ==========================================
   SERVICES SECTION
   ========================================== */

.services-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
    margin-top: 3rem;
}

.service-card {
    background: white;
    padding: 2rem;
    border-radius: 10px;
    box-shadow: 0 5px 15px rgba(0,0,0,0.1);
    transition: transform 0.3s;
}

.service-card:hover {
    transform: translateY(-10px);
}

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

/* ==========================================
   TECHNOLOGY STACK SECTION
   ========================================== */

.tech-stack {
    display: flex;
    flex-wrap: wrap;
    gap: 1rem;
    justify-content: center;
    margin-top: 2rem;
}

.tech-item {
    background: var(--primary-color);
    color: white;
    padding: 1rem 2rem;
    border-radius: 25px;
    font-weight: 500;
}

/* ==========================================
   CLIENTS SECTION
   ========================================== */

.clients-list {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 2rem;
    margin-top: 2rem;
}

.client-card {
    background: white;
    padding: 2rem;
    border-radius: 10px;
    text-align: center;
    box-shadow: 0 3px 10px rgba(0,0,0,0.1);
}

.client-card h3 {
    color: var(--primary-color);
    margin-bottom: 0.5rem;
}

/* ==========================================
   CONTACT SECTION
   ========================================== */

#contact h2 {
    text-align: center;
    margin-bottom: 2rem;
}

.map-container {
    height: 500px;
    border-radius: 10px;
    overflow: hidden;
    box-shadow: 0 5px 15px rgba(0,0,0,0.2);
    margin-bottom: 3rem;
}

.map-container iframe {
    width: 100%;
    height: 100%;
    border: 0;
}

.contact-info {
    display: flex;
    justify-content: center;
    gap: 4rem;
    flex-wrap: wrap;
}

.contact-item {
    display: flex;
    align-items: center;
    gap: 1rem;
}

.contact-icon {
    width: 28px;
    height: 28px;
    min-width: 28px;
    color: var(--primary-color);
    stroke-width: 2;
}

.contact-item p {
    font-size: 0.95rem;
    color: var(--text-dark);
    margin: 0;
    line-height: 1.5;
}

.contact-item a {
    color: var(--primary-color);
    text-decoration: none;
    transition: color 0.3s;
}

.contact-item a:hover {
    color: var(--secondary-color);
}

/* ==========================================
   FOOTER
   ========================================== */

footer {
    background: var(--text-dark);
    color: white;
    text-align: center;
    padding: 2rem 0;
}

/* ==========================================
   RESPONSIVE DESIGN
   ========================================== */

@media (max-width: 768px) {
    .nav-links {
        display: none;
        flex-direction: column;
        position: absolute;
        top: 70px;
        left: 0;
        right: 0;
        background: white;
        padding: 1rem;
        box-shadow: 0 5px 10px rgba(0,0,0,0.1);
    }

    .nav-links.active {
        display: flex;
    }

    .mobile-menu-btn {
        display: block;
    }

    .hero h1 {
        font-size: 2rem;
    }

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

    h2 {
        font-size: 2rem;
    }

    .contact-info {
        flex-direction: column;
        align-items: center;
        gap: 1.5rem;
    }
    
    #contact h2 {
        text-align: center;
    }

    .map-container {
        height: 300px;
    }
}