body {
    font-family: 'Montserrat', Arial, sans-serif;
    font-size: 1.15rem;
    line-height: 1.8;
    background: #f8f9fa;
    color: #222;
    margin: 0;
    padding: 0;
}

.section, .container, .person-info, .publications-list, .footer-info, .nav-list, .index-text, .contact-center {
    letter-spacing: 0.02em;
}

p, li {
    margin-bottom: 1.1em;
}

h1, h2, h3, h4 {
    letter-spacing: 0.01em;
    margin-top: 1.2em;
    margin-bottom: 0.6em;
}

header {
    background: #00694E; /* primary green */
    border-bottom: 2px solid #00B67A; /* secondary green border */
    padding: 0.5rem 0;
    position: sticky;
    top: 0;
    z-index: 100;
}
header .container {
    display: flex;
    align-items: center;
    justify-content: space-between;
    max-width: 1100px;
    margin: 0 auto;
    padding: 0 2rem;
}
.header-flex {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding-left: 0;
    padding-right: 0;
    min-height: 60px;
}
header h1 {
    font-size: 2rem;
    font-weight: 700;
    margin: 0;
    color: #FFFFFF; /* white on green */
    letter-spacing: 1px;
}
.header-flex h1 {
    margin-left: 0.5rem;
    margin-right: 2rem;
    font-size: 1.1rem;
    font-weight: 700;
    color: #FFFFFF;
    flex-shrink: 0;
    letter-spacing: 0.5px;
    line-height: 1.2;
}
nav ul {
    list-style: none;
    display: flex;
    gap: 2rem;
    margin: 0;
    padding: 0;
}
.nav-list {
    display: flex;
    gap: 0.7rem;
    margin-left: auto;
    margin-right: 1.2rem;
    padding: 0;
    list-style: none;
}
.nav-list li {
    margin: 0;
    padding: 0;
}
nav a {
    text-decoration: none;
    color: #FFFFFF; /* white text on green */
    font-weight: 500;
    font-size: 0.98rem;
    padding: 0.35rem 0.85rem;
    border-radius: 3px;
    transition: background 0.2s, color 0.2s;
    letter-spacing: 0.2px;
}
nav a:hover, nav a:focus {
    background: #00B67A; /* secondary green */
    color: #003C23; /* dark green text on light green */
}
.section {
    padding: 4rem 0 3rem 0;
    background: #E6F2ED; /* light green background */
}
.container {
    max-width: 1100px;
    margin: 0 auto;
    padding: 0 2rem;
}
h2 {
    font-size: 2rem;
    font-weight: 700;
    margin-bottom: 1.5rem;
    color: #00694E; /* primary green */
}
.people-list {
    display: flex;
    flex-wrap: wrap;
    gap: 2rem;
    justify-content: flex-start;
}
.person {
    background: #FFFFFF; /* white card */
    border-radius: 8px;
    box-shadow: 0 2px 8px rgba(0,105,78,0.06);
    padding: 1.5rem 1rem;
    text-align: center;
    width: 180px;
    margin-bottom: 2rem;
    border: 1px solid #E6F2ED;
}
.person img {
    width: 100px;
    height: 100px;
    object-fit: cover;
    border-radius: 50%;
    margin-bottom: 1rem;
    background: #E6F2ED; /* light green */
}
.person h3 {
    font-size: 1.1rem;
    font-weight: 600;
    margin: 0.5rem 0 0.2rem 0;
    color: #003C23;
}
.person p {
    font-size: 0.95rem;
    color: #00694E;
    margin: 0;
}
.publications-list {
    padding-left: 0;
    list-style: none;
}
.publications-list li {
    margin-bottom: 2.2rem;
    font-size: 1.05rem;
    color: #00694E;
    line-height: 1.7;
}
.publications-list li:last-child {
    margin-bottom: 0;
}

/* ==== NEW: Research section ==== */
.research-item {
    margin-bottom: 3rem;
}

.research-title {
    font-size: 1.2rem;
    font-weight: 600;
    margin-bottom: 1rem;
    color: #003C23;
}

.research-content {
    display: flex;
    gap: 2rem;
    align-items: flex-start;
    flex-wrap: wrap; /* ensures responsiveness on small screens */
}

.research-text {
    flex: 1;
    font-size: 1rem;
    color: #444;
    line-height: 1.6;
    min-width: 200px; /* prevents text from shrinking too much */
    text-align: justify; /* ✅ makes text justified */
}

.research-image {
    flex: 1;
    display: flex;
    justify-content: center;
    min-width: 200px; /* keeps right half reasonable on small screens */
}

.research-image img {
    max-height: 250px; /* fixed height for all images */
    width: auto;        /* scale width proportionally */
    object-fit: contain;
    border-radius: 6px;
    box-shadow: 0 2px 8px rgba(0,0,0,0.1);
}


/* =============================== */

footer {
    background: #00694E; /* primary green */
    border-top: 2px solid #00B67A;
    padding: 1.2rem 0;
    text-align: center;
    color: #FFFFFF;
    font-size: 0.95rem;
    margin-top: 2rem;
}
.people-section-title {
    font-size: 1.3rem;
    color: #00694E;
    margin-top: 2.5rem;
    margin-bottom: 1.2rem;
    font-weight: 700;
    letter-spacing: 0.5px;
}
.person-row {
    display: flex;
    align-items: center;
    background: #fff;
    border-radius: 8px;
    box-shadow: 0 2px 8px rgba(0,105,78,0.06);
    padding: 1.2rem 1.5rem;
    margin-bottom: 1.5rem;
    border: 1px solid #E6F2ED;
}
.person-img {
    width: 200px;
    height: 200px;
    object-fit: cover;
    border-radius: 50%;
    margin-right: 2rem;
    background: #E6F2ED;
    flex-shrink: 0;
}
.person-info {
    flex: 1;
    text-align: justify; /* ✅ justify text for each person's description */

}
.teaching-list {
    list-style: none;
    padding: 0;
    margin: 0;
}
.teaching-list li {
    margin-bottom: 2.2rem;
    font-size: 1.08rem;
    line-height: 1.6;
}
.teaching-list li:last-child {
    margin-bottom: 0;
}
.footer-flex {
    display: flex;
    align-items: center;
    gap: 2rem;
    padding: 1.2rem 0;
    background: #00694E;
}
.center-footer {
    flex-direction: column;
    justify-content: center;
    align-items: center;
    text-align: center;
}
.center-footer-side {
    display: flex;
    flex-direction: row;
    justify-content: center;
    align-items: center;
    text-align: left;
    gap: 2.5rem;
    padding: 2rem 0 1rem 0;
}
.footer-logo {
    display: block;
    margin: 0;
    width: 240px; /* Doubled from previous 120px */
    height: auto;
}
.footer-info {
    color: #fff;
    font-size: 1.1rem;
    line-height: 1.6;
}
.footer-info a {
    color: #fff;
    text-decoration: underline;
}
/* Join page: justify paragraph text only (keeps headings as they are) */
.join-content p {
    text-align: justify;
    text-justify: inter-word;
    -webkit-text-align-last: left; /* WebKit / Safari */
    text-align-last: left;         /* Firefox & Chromium */
}
.contact-center {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    min-height: 40vh;
    text-align: center;
    text-align: justify; /* ✅ justify Join Our Group text */
    gap: 1.5rem;
}
.index-flex {
    display: flex;
    flex-direction: row;
    align-items: center;
    justify-content: space-between;
    gap: 2.5rem;
    flex-wrap: wrap;
}

.index-text {
    flex: 1 1 350px;
    min-width: 260px;
    text-align: justify; /* ✅ justify text on home/index page */

}

.index-image {
    flex: 0 0 350px;
    display: flex;
    justify-content: center;
    align-items: center;
}
@media (max-width: 900px) {
    .footer-logo {
        width: 160px;
    }
    .footer-info {
        font-size: 1rem;
    }
}
@media (max-width: 600px) {
    .footer-flex {
        flex-direction: column;
        align-items: flex-start;
        gap: 0.7rem;
    }
    .footer-logo {
        width: 48px;
    }
    .footer-info {
        font-size: 0.95rem;
    }
}
@media (max-width: 800px) {
    .container {
        padding: 0 1rem;
    }
    .people-list {
        gap: 1rem;
    }
    .person {
        width: 45vw;
        min-width: 140px;
    }
}
@media (max-width: 700px) {
    .header-flex {
        flex-direction: column;
        align-items: flex-start;
        min-height: unset;
    }
    .nav-list {
        flex-direction: column;
        gap: 0.5rem;
        margin-right: 0;
    }
    .header-flex h1 {
        margin-bottom: 0.5rem;
    }
    .person-row {
        flex-direction: column;
        align-items: flex-start;
        padding: 1rem;
    }
    .person-img {
        margin-right: 0;
        margin-bottom: 1rem;
        width: 60vw;
        height: 60vw;
        max-width: 200px;
        max-height: 200px;
    }
}
@media (max-width: 600px) {
    .footer-flex {
        flex-direction: column;
        align-items: flex-start;
        gap: 0.7rem;
    }
    .footer-logo {
        width: 48px;
    }
    .footer-info {
        font-size: 0.95rem;
    }
}
@media (max-width: 500px) {
    header .container {
        flex-direction: column;
        align-items: flex-start;
    }
    nav ul {
        flex-direction: column;
        gap: 1rem;
    }
    .person {
        width: 90vw;
    }
}