body {
    margin: 0;
    font-family: Arial, Helvetica, sans-serif;
    background: linear-gradient(to bottom right, #eef3f8, #dfe7f1);
    color: #222;
    min-height: 100vh;
}

.wrapper {
    max-width: 1100px;
    margin: 40px auto;
    padding: 20px;
}

.hero {
    text-align: center;
    background-color: #ffffff;
    padding: 50px 40px;
    border-radius: 22px;
    box-shadow: 0 10px 28px rgba(0, 0, 0, 0.10);
    margin-bottom: 35px;
    position: relative;
    overflow: hidden;
}

.hero::before {
    content: "";
    position: absolute;
    top: -120px;
    right: -120px;
    width: 260px;
    height: 260px;
    background: rgba(29, 95, 167, 0.08);
    border-radius: 50%;
}

.hero::after {
    content: "";
    position: absolute;
    bottom: -100px;
    left: -100px;
    width: 220px;
    height: 220px;
    background: rgba(52, 73, 94, 0.08);
    border-radius: 50%;
}

.eyebrow {
    color: #1d5fa7;
    font-size: 0.85rem;
    font-weight: bold;
    text-transform: uppercase;
    letter-spacing: 2px;
    margin-bottom: 12px;
    position: relative;
    z-index: 1;
}

.hero h1 {
    color: #26394f;
    font-size: 2.6rem;
    margin-top: 0;
    margin-bottom: 16px;
    position: relative;
    z-index: 1;
}

.hero p {
    max-width: 720px;
    margin: 0 auto;
    line-height: 1.8;
    color: #4a5563;
    position: relative;
    z-index: 1;
}

.link-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 24px;
}

.assignment-card {
    background-color: #ffffff;
    padding: 30px;
    border-radius: 20px;
    text-decoration: none;
    color: #222;
    box-shadow: 0 8px 20px rgba(0, 0, 0, 0.08);
    border: 1px solid #dde5ee;
    transition: transform 0.3s ease,
                box-shadow 0.3s ease,
                border-color 0.3s ease;
    position: relative;
    overflow: hidden;
}

.assignment-card::before {
    content: "";
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 6px;
    background: linear-gradient(to right, #34495e, #1d5fa7);
}

.assignment-card:hover {
    transform: translateY(-8px);
    box-shadow: 0 14px 30px rgba(0, 0, 0, 0.14);
    border-color: #c8d5e4;
}

.assignment-card h2 {
    color: #26394f;
    margin-top: 10px;
    margin-bottom: 14px;
    font-size: 1.4rem;
}

.assignment-card p {
    line-height: 1.7;
    color: #556270;
}

@media (max-width: 850px) {

    .link-grid {
        grid-template-columns: 1fr;
    }

    .hero {
        padding: 40px 25px;
    }

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

}