* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    font-family: Arial, Helvetica, sans-serif;
}

body {
    background: linear-gradient(135deg, #0f2027, #203a43, #2c5364);
    color: #ffffff;
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    justify-content: space-between;
}

header {
    padding: 60px 20px;
    text-align: center;
}

header h1 {
    font-size: 3rem;
    letter-spacing: 1px;
}

header p {
    margin-top: 15px;
    font-size: 1.2rem;
    opacity: 0.9;
}

section {
    max-width: 900px;
    margin: 0 auto;
    padding: 40px 20px;
    text-align: center;
}

.cards {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
    gap: 20px;
    margin-top: 30px;
}

.card {
    background: rgba(255, 255, 255, 0.08);
    padding: 25px;
    border-radius: 12px;
    transition: transform 0.3s ease, background 0.3s ease;
}

.card:hover {
    transform: translateY(-5px);
    background: rgba(255, 255, 255, 0.15);
}

.card h3 {
    margin-bottom: 10px;
}

footer {
    text-align: center;
    padding: 20px;
    font-size: 0.9rem;
    opacity: 0.8;
}

a {
    color: #00e0ff;
    text-decoration: none;
}

a:hover {
    text-decoration: underline;
}