body {
    font-family: 'Arial', sans-serif;
    margin: 0;
    padding: 0;
    background: linear-gradient(135deg, hsl(210, 30%, 95%), hsl(210, 10%, 85%));
    color: #2c3e50;
}

.container {
    max-width: 800px;
    margin: 2rem auto;
    padding: 2rem;
    background: rgba(255, 255, 255, 0.9);
    border-radius: 15px;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
    backdrop-filter: blur(8px);
}

h1 {
    text-align: center;
    color: #2c3e50;
}

.button {
    display: inline-block;
    margin-top: 1rem;
    padding: 0.6rem 1.2rem;
    background: rgba(52, 152, 219, 0.8);
    color: #fff;
    border: none;
    border-radius: 8px;
    cursor: pointer;
    text-decoration: none;
    font-size: 1rem;
    transition: background 0.3s ease, transform 0.2s ease;
}

.button:hover {
    background: rgba(52, 152, 219, 1);
    transform: translateY(-2px);
}

.nav {
    display: flex;
    justify-content: space-between;
    align-items: center;
    background: rgba(52, 152, 219, 0.7);
    padding: 0.8rem 1.5rem;
    border-radius: 12px;
    margin-bottom: 2rem;
}

.nav-brand {
    font-size: 1.5rem;
    color: #fff;
    font-weight: bold;
}

.nav-links {
    list-style: none;
    display: flex;
    gap: 1rem;
    margin: 0;
    padding: 0;
}

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

.nav-links a:hover {
    color: #ffeb3b;
}

.cards {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 1.5rem;
    margin-top: 2rem;
}

.card {
    background: rgba(255, 255, 255, 0.85);
    border-radius: 12px;
    padding: 1rem;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
    transition: transform 0.3s, box-shadow 0.3s;
}

.card:hover {
    transform: translateY(-5px);
    box-shadow: 0 8px 20px rgba(0, 0, 0, 0.2);
}

.card h3 {
    margin-top: 0;
    color: #2c3e50;
}

.card p {
    font-size: 0.9rem;
    color: #555;
}

.footer {
    text-align: center;
    margin-top: 3rem;
    font-size: 0.9rem;
    color: #777;
}

@keyframes bounce {

    0%,
    100% {
        transform: translateY(0);
    }

    50% {
        transform: translateY(-4px);
    }
}

.button:active {
    animation: bounce 0.3s ease;
}