:root {
    --primary-color: #2c3e50;
    --secondary-color: #27ae60;
    --text-color: #333;
    --bg-color: #fcfcfc;
    --card-bg: #ffffff;
    --font-main: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
}

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

body {
    font-family: var(--font-main);
    color: var(--text-color);
    background-color: var(--bg-color);
    line-height: 1.6;
}

header {
    background-color: var(--primary-color);
    padding: 1rem 2rem;
    position: sticky;
    top: 0;
    z-index: 1000;
}

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

.logo {
    color: #fff;
    font-size: 1.5rem;
    font-weight: bold;
    text-decoration: none;
    display: flex;
    align-items: center;
    gap: 10px;
}

.nav-links {
    list-style: none;
    display: flex;
    gap: 20px;
}

.nav-links a {
    color: #ecf0f1;
    text-decoration: none;
    font-weight: 500;
    transition: color 0.3s;
}

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

.hero {
    height: 60vh;
    display: flex;
    align-items: center;
    justify-content: center;
    text-align: center;
    background: linear-gradient(rgba(44, 62, 80, 0.7), rgba(44, 62, 80, 0.7)), url('https://images.pexels.com/photos/417074/pexels-photo-417074.jpeg?auto=compress&cs=tinysrgb&w=1260&h=750&dpr=1') center/cover;
    color: white;
    padding: 2rem;
}

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

.hero p {
    font-size: 1.2rem;
    max-width: 600px;
    margin: 0 auto;
}

main {
    max-width: 1200px;
    margin: 4rem auto;
    padding: 0 2rem;
}

.section-title {
    text-align: center;
    margin-bottom: 3rem;
    font-size: 2.2rem;
    color: var(--primary-color);
}

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

.card {
    background: var(--card-bg);
    border-radius: 8px;
    padding: 2rem;
    box-shadow: 0 4px 6px rgba(0,0,0,0.05);
    transition: transform 0.3s;
}

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

.card h3 {
    margin-bottom: 1rem;
    color: var(--primary-color);
    display: flex;
    align-items: center;
    gap: 10px;
}

.icon {
    width: 24px;
    height: 24px;
    fill: var(--secondary-color);
}

footer {
    background-color: var(--primary-color);
    color: #bdc3c7;
    text-align: center;
    padding: 2rem;
    margin-top: auto;
}

.content-block {
    margin-bottom: 3rem;
}

.content-block h2 {
    color: var(--primary-color);
    margin-bottom: 1rem;
}

.content-block p {
    margin-bottom: 1rem;
}

@media (max-width: 768px) {
    .nav-links {
        display: none;
    }
    .hero h1 {
        font-size: 2rem;
    }
}