body {
        margin: 0;
        font-family: Arial, Helvetica, sans-serif;
        background: #ffffff;
        color: #172033;
    }

    header {
        border-bottom: 1px solid #d9e1ea;
        background: #ffffff;
        padding: 18px 40px;
        display: flex;
        justify-content: space-between;
        align-items: center;
    }

    .logo {
        font-size: 22px;
        font-weight: bold;
        color: #245b9d;
    }

    nav {
        display: flex;
        gap: 12px;
        flex-wrap: wrap;
    }

    nav a,
    .study-button {
        text-decoration: none;
        padding: 10px 16px;
        border: 1px solid #d9e1ea;
        border-radius: 8px;
        background: #ffffff;
        color: #172033;
        font-weight: bold;
        transition: 0.2s;
    }

    nav a:hover,
    .study-button:hover {
        background: #f7f9fc;
        border-color: #245b9d;
    }

    .active,
    .primary {
        background: #245b9d;
        color: #ffffff;
        border-color: #245b9d;
    }

    main {
        max-width: 1100px;
        margin: 0 auto;
        padding: 70px 24px;
    }

    .hero {
        margin-bottom: 40px;
    }

    .eyebrow {
        display: inline-block;
        padding: 6px 12px;
        background: #e9f1fb;
        color: #17457a;
        border-radius: 20px;
        font-size: 13px;
        font-weight: bold;
        margin-bottom: 14px;
    }

    h1 {
        font-size: 56px;
        margin: 0;
        line-height: 1.1;
    }

    .intro {
        font-size: 18px;
        color: #667085;
        max-width: 650px;
    }

    .study-grid {
        display: grid;
        grid-template-columns: repeat(3, 1fr);
        gap: 18px;
    }

    .study-card {
        border: 1px solid #d9e1ea;
        border-radius: 8px;
        padding: 24px;
        background: #ffffff;
        box-shadow: 0 12px 30px rgba(23, 32, 51, 0.08);
    }

    .new-row {
        grid-column: 1 / -1;
        border: 1px solid #d9e1ea;
        border-radius: 8px;
        padding: 24px;
        background: #ffffff;
        box-shadow: 0 12px 30px rgba(23, 32, 51, 0.08);
    }

    .study-card h2 {
        margin-top: 0;
        font-size: 22px;
    }

    .study-card p {
        color: #667085;
        font-size: 15px;
        min-height: 70px;
    }

    .study-button {
        display: block;
        text-align: center;
        margin-top: 20px;
    }

    footer {
        border-top: 1px solid #d9e1ea;
        padding: 24px;
        text-align: center;
        color: #667085;
        background: #f7f9fc;
    }

    .all-rights-reserved {
        color: #bbbbbb;
        font-size: x-small;
        position: fixed;
        bottom: 0;
        width: 100%;
        height: 70px;

        text-align: center;
        line-height: 100px;

    }

    @media (max-width: 900px) {
        .study-grid {
            grid-template-columns: repeat(2, 1fr);
        }

        header {
            flex-direction: column;
            gap: 16px;
        }
    }

    @media (max-width: 560px) {
        h1 {
            font-size: 40px;
        }

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

        nav a {
            width: 100%;
            text-align: center;
        }
    }