:root {
    --primary-color: #c0392b;
    --secondary-color: #f39c12;
    --text-color: #333;
    --bg-color: #f4f4f4;
    --header-bg: #2c3e50;
    --header-text: #ecf0f1;
    --card-bg: #fff;
}

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

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

header {
    background-color: var(--header-bg);
    color: var(--header-text);
    padding: 1rem 0;
    position: sticky;
    top: 0;
    z-index: 1000;
    box-shadow: 0 2px 5px rgba(0,0,0,0.1);
}

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

.logo {
    font-size: 1.5rem;
    font-weight: bold;
}

.nav-links {
    list-style: none;
    display: flex;
}

.nav-links li {
    margin-left: 20px;
}

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

.nav-links a:hover, .nav-links a.active {
    color: var(--secondary-color);
}

.lang-switch {
    margin-left: 20px;
}

.lang-select {
    background: transparent;
    border: 1px solid var(--header-text);
    color: var(--header-text);
    padding: 5px 10px;
    cursor: pointer;
    border-radius: 4px;
    transition: all 0.3s;
    font-family: inherit;
}

.lang-select:hover, .lang-select:focus {
    background: var(--header-text);
    color: var(--header-bg);
    outline: none;
}

.lang-select option {
    background: var(--header-bg);
    color: var(--header-text);
}

main {
    max-width: 1200px;
    margin: 2rem auto;
    padding: 0 20px;
    min-height: 80vh;
}

.detailed-text {
    max-width: 800px;
    margin: 0 auto 2rem auto;
    text-align: justify;
    font-size: 1.1rem;
}

.detailed-section {
    background: #fff;
    padding: 2rem;
    border-radius: 8px;
    box-shadow: 0 2px 4px rgba(0,0,0,0.05);
    margin-bottom: 2rem;
}

.detailed-section h3 {
    color: var(--primary-color);
    margin-bottom: 1rem;
    border-bottom: 2px solid var(--secondary-color);
    padding-bottom: 0.5rem;
    display: inline-block;
}

.hero {
    background-image: linear-gradient(rgba(0,0,0,0.5), rgba(0,0,0,0.5)), url('https://images.unsplash.com/photo-1464817739973-0128fe77aaa1?ixlib=rb-1.2.1&auto=format&fit=crop&w=1350&q=80');
    background-size: cover;
    background-position: center;
    height: 400px;
    display: flex;
    align-items: center;
    justify-content: center;
    text-align: center;
    color: #fff;
    border-radius: 8px;
    margin-bottom: 2rem;
}

.hero h1 {
    font-size: 3rem;
    margin-bottom: 1rem;
}

.section-title {
    text-align: center;
    margin-bottom: 2rem;
    color: var(--primary-color);
    font-size: 2rem;
}

.grid-container {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 20px;
}

.card {
    background: var(--card-bg);
    border-radius: 8px;
    overflow: hidden;
    box-shadow: 0 4px 6px rgba(0,0,0,0.1);
    transition: transform 0.3s;
}

.card:hover {
    transform: translateY(-5px);
}

.card img {
    width: 100%;
    height: 200px;
    object-fit: cover;
}

.card-content {
    padding: 20px;
}

.card-title {
    font-size: 1.25rem;
    margin-bottom: 10px;
    color: var(--primary-color);
}

footer {
    background-color: var(--header-bg);
    color: var(--header-text);
    text-align: center;
    padding: 2rem 0;
    margin-top: 2rem;
}

/* Responsive Design */
@media (max-width: 768px) {
    nav {
        flex-direction: column;
        padding: 1rem;
    }

    .logo {
        margin-bottom: 1rem;
    }

    .nav-links {
        display: flex;
        flex-direction: column;
        width: 100%;
        text-align: center;
        padding: 0;
    }

    .nav-links li {
        margin: 0.5rem 0;
    }

    .lang-switch {
        margin: 1rem 0 0 0;
        width: 100%;
        text-align: center;
    }

    .lang-select {
        width: 100%;
        max-width: 200px;
        text-align: center;
    }
    
    .hero {
        height: 300px;
        padding: 0 1rem;
    }

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

    .detailed-section {
        padding: 1.5rem;
    }

    .section-title {
        font-size: 1.75rem;
    }
}

@media (max-width: 480px) {
    .hero h1 {
        font-size: 1.75rem;
    }
    
    .detailed-text {
        font-size: 1rem;
    }
}