:root {
    --primary-blue: #0052D4;
    --secondary-blue: #4364F7;
    --light-blue: #6FB1FC;
    --gradient-blue: linear-gradient(to right, #0052D4, #4364F7, #6FB1FC);
    --dark-text: #333;
    --light-text: #fff;
    --bg-light: #f4f7f6;
}

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

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

header {
    background: var(--gradient-blue);
    color: var(--light-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 2rem;
}

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

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

nav ul li {
    margin-left: 2rem;
}

nav ul li a {
    color: var(--light-text);
    text-decoration: none;
    font-weight: 500;
    transition: opacity 0.3s;
}

nav ul li a:hover {
    opacity: 0.8;
}

.hero {
    background: url('../images/hero.png') no-repeat center center/cover;
    height: 60vh;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    text-align: center;
    color: var(--light-text);
    padding: 0 2rem;
}

.hero h1 {
    font-size: 3rem;
    margin-bottom: 1rem;
    text-shadow: 2px 2px 4px rgba(0,0,0,0.5);
}

.hero p {
    font-size: 1.2rem;
    max-width: 800px;
    text-shadow: 1px 1px 2px rgba(0,0,0,0.5);
}

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

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

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

.card {
    background: #fff;
    padding: 2rem;
    border-radius: 8px;
    box-shadow: 0 4px 6px rgba(0,0,0,0.1);
    transition: transform 0.3s;
}

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

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

footer {
    background: #333;
    color: var(--light-text);
    padding: 3rem 0;
    text-align: center;
}

.footer-content {
    max-width: 1200px;
    margin: 0 auto;
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 2rem;
    padding: 0 2rem;
    text-align: left;
}

.footer-bottom {
    margin-top: 2rem;
    border-top: 1px solid #555;
    padding-top: 1rem;
}

.btn {
    display: inline-block;
    background: var(--gradient-blue);
    color: var(--light-text);
    padding: 0.8rem 1.5rem;
    text-decoration: none;
    border-radius: 5px;
    margin-top: 1rem;
    transition: opacity 0.3s;
}

.btn:hover {
    opacity: 0.9;
}

.announcement {
    background: #fff3cd;
    color: #856404;
    padding: 1rem;
    text-align: center;
    border-bottom: 1px solid #ffeeba;
}

.image-text-split {
    display: flex;
    align-items: center;
    gap: 4rem;
    margin-bottom: 4rem;
}

.image-text-split img {
    width: 50%;
    border-radius: 8px;
    box-shadow: 0 4px 10px rgba(0,0,0,0.1);
}

.image-text-split.reverse {
    flex-direction: row-reverse;
}

@media (max-width: 768px) {
    .image-text-split {
        flex-direction: column;
    }
    .image-text-split img {
        width: 100%;
    }
    nav {
        flex-direction: column;
    }
    nav ul {
        margin-top: 1rem;
    }
    nav ul li {
        margin: 0 1rem;
    }
}