body {
    margin: 0;
    font-family: Arial, Helvetica, sans-serif;
    background: #f5f7fa;
    color: #222;
}

.container {
    width: 90%;
    max-width: 1100px;
    margin: auto;
    padding: 15px 0;
}

header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 60px;
}

.text {
    flex: 1;
}

.text h1 {
    font-size: 42px;
    margin-bottom: 10px;
}

.text h2 {
    font-size: 24px;
    color: #0056b3;
    margin-bottom: 15px;
}

.text p {
    font-size: 20px;
    line-height: 1.6;
}

.research {
    margin-top: 30px;
    font-size: 22px;
    line-height: 1.8;
    font-weight: bold;
}

.photo img {
    width: 320px;
    border-radius: 10px;
    box-shadow: 0 5px 15px rgba(0,0,0,0.2);
}

nav {

    width: 100%;

    display: flex;

    justify-content: center;

    gap: 25px;

    padding: 18px 0;

    background: white;

    border-radius: 10px;

    box-shadow: 0 2px 10px rgba(0,0,0,0.08);

    margin-bottom: 60px;

}

nav a {

    text-decoration: none;

    color: #0056b3;

    font-size: 18px;

    font-weight: 600;

    padding: 10px 14px;

}

nav a:hover {

    color: #003f80;

}
.research-grid {
    display: flex;
    justify-content: space-between;
    gap: 80px;
    margin-top: 35px;
}

.research-column {
    flex: 1;
}

.research-column h3 {
    color: #0056b3;
    font-size: 28px;
    margin-bottom: 20px;
}

.research-column ul {
    list-style-type: square;
    padding-left: 25px;
}

.research-column li {
    font-size: 22px;
    line-height: 2;
}
/* ==========================
   Research Interests
========================== */

#research-section h2 {
    font-size: 48px;
    margin-bottom: 12px;
    color: #222;
}
.research-columns {
    display: flex;
    justify-content: space-between;
    gap: 40px;
    margin-top: 30px;
    flex-wrap: wrap;
}

.research-column {
    flex: 1;
    min-width: 350px;
}

.research-column h3 {
    color: #003f8a;
    margin-bottom: 18px;
    font-size: 24px;
}

.research-column ul {
    padding-left: 25px;
}

.research-column li {
    font-size: 20px;
    line-height: 1.9;
}