/* ======= Base ======= */
body {
    font-family: 'Roboto', sans-serif;
    color: #545454;
    background-color: #f5f5f5;
    font-size: 14px;
    -webkit-font-smoothing: antialiased;
}

a {
    color: #505050;
    text-decoration: none;
    transition: color 0.3s ease;
}

a:hover {
    color: #862633;
    text-decoration: underline;
}

h1, h2, h3, h4, h5, h6 {
    font-weight: 700;
    color: #3e3e3e;
}

/* ======= Navbar ======= */
.navbar {
    background-color: #fff;
    border-bottom: 1px solid #e8e8e8;
    padding: 0.8rem 0;
}

.navbar-brand {
    font-size: 1.4rem;
    font-weight: 900;
    letter-spacing: 0.08em;
    color: #2d2d2d !important;
    text-transform: uppercase;
}

.navbar-brand:hover {
    text-decoration: none;
}

.navbar-brand span {
    font-weight: 300;
    font-size: 0.85rem;
    color: #6c757d;
    letter-spacing: 0;
    text-transform: none;
    margin-left: 0.5rem;
}

.navbar-nav .nav-link {
    color: #545454 !important;
    font-size: 0.88rem;
    font-weight: 500;
    padding: 0.5rem 1rem !important;
    transition: color 0.3s ease;
}

.navbar-nav .nav-link:hover,
.navbar-nav .nav-link.active {
    color: #862633 !important;
}

.navbar-nav .dropdown-menu {
    border: 1px solid #e8e8e8;
    border-radius: 4px;
    box-shadow: 0 2px 12px rgba(0, 0, 0, 0.08);
    padding: 0.5rem 0;
}

.navbar-nav .dropdown-item {
    font-size: 0.85rem;
    color: #545454;
    padding: 0.4rem 1.2rem;
}

.navbar-nav .dropdown-item:hover {
    background-color: #f5f5f5;
    color: #2d2d2d;
}

.navbar-toggler {
    border-color: #e8e8e8;
}

.navbar-toggler:focus {
    box-shadow: none;
}

/* ======= Page Wrapper ======= */
.page-wrapper {
    max-width: 1000px;
    margin: 2rem auto;
    background: #fff;
    border-radius: 4px;
    padding: 2.5rem;
    box-shadow: 0 0.5rem 1rem rgba(0, 0, 0, 0.15);
}

/* ======= Page Header ======= */
.page-header {
    margin-bottom: 2rem;
    padding-bottom: 1rem;
    border-bottom: 2px solid #862633;
}

.page-header h2 {
    font-size: 1.6rem;
    font-weight: 900;
    letter-spacing: 0.05em;
    color: #2d2d2d;
    text-transform: uppercase;
    margin-bottom: 0;
}

/* ======= Section Headings ======= */
.section-heading {
    font-size: 1.1rem;
    font-weight: 700;
    letter-spacing: 0.08em;
    color: #2d2d2d;
    padding-bottom: 0.6rem;
    border-bottom: 2px solid #862633;
    text-transform: uppercase;
    margin-bottom: 1.5rem;
}

/* ======= Hero Section (Home) ======= */
.hero-section {
    text-align: center;
    padding: 3rem 1rem;
}

.hero-section h1 {
    font-size: 2.5rem;
    font-weight: 900;
    letter-spacing: 0.08em;
    color: #2d2d2d;
    margin-bottom: 1rem;
}

.hero-section .tagline {
    font-size: 1.1rem;
    font-weight: 300;
    color: #6c757d;
    max-width: 600px;
    margin: 0 auto 2rem;
    line-height: 1.7;
}

/* ======= News List ======= */
.news-list .news-item {
    padding: 1rem 0;
    border-bottom: 1px solid #f0f0f0;
}

.news-list .news-item:last-child {
    border-bottom: none;
}

.news-date {
    font-size: 0.8rem;
    color: #999;
    font-weight: 500;
    min-width: 100px;
}

.news-content {
    font-size: 0.92rem;
    line-height: 1.6;
}

/* ======= Member Cards ======= */
.member-card {
    border: 1px solid #eee;
    border-radius: 6px;
    padding: 1.5rem;
    text-align: center;
    transition: box-shadow 0.3s ease;
    height: 100%;
}

.member-card:hover {
    box-shadow: 0 0 10px rgba(134, 38, 51, 0.15);
    border-color: #862633;
}

.member-card .member-photo {
    width: 100px;
    height: 100px;
    border-radius: 50%;
    object-fit: cover;
    background-color: #eee;
    margin: 0 auto 1rem;
    display: block;
}

.member-card .member-name {
    font-size: 1rem;
    font-weight: 600;
    color: #2d2d2d;
    margin-bottom: 0.3rem;
}

.member-card .member-role {
    font-size: 0.82rem;
    color: #999;
}

/* ======= Research Cards ======= */
.research-card {
    border: 1px solid #eee;
    border-radius: 6px;
    padding: 1.5rem;
    margin-bottom: 1.5rem;
    transition: box-shadow 0.3s ease;
}

.research-card:hover {
    box-shadow: 0 0 10px rgba(134, 38, 51, 0.15);
    border-color: #862633;
}

.research-card h4 {
    font-size: 1rem;
    font-weight: 600;
    color: #2d2d2d;
    margin-bottom: 0.5rem;
}

.research-card p {
    font-size: 0.9rem;
    line-height: 1.6;
    color: #666;
    margin-bottom: 0;
}

.research-tag {
    display: inline-block;
    font-size: 0.72rem;
    background: #f0f0f0;
    color: #666;
    padding: 0.15rem 0.5rem;
    border-radius: 3px;
    margin-right: 0.3rem;
    margin-bottom: 0.3rem;
}

/* ======= Publication List ======= */
.pub-year {
    font-size: 1rem;
    font-weight: 600;
    color: #2d2d2d;
    margin-bottom: 1rem;
    margin-top: 1.5rem;
}

.pub-item {
    font-size: 0.9rem;
    line-height: 1.6;
    margin-bottom: 0.8rem;
    padding-left: 1rem;
    border-left: 2px solid #862633;
}

.pub-item .pub-title {
    color: #505050;
}

.pub-item .pub-authors {
    font-size: 0.85rem;
    color: #777;
}

.pub-item .pub-venue {
    font-size: 0.85rem;
    color: #999;
    font-style: italic;
}

/* ======= Course List ======= */
.course-item {
    border: 1px solid #eee;
    border-radius: 6px;
    padding: 1.2rem 1.5rem;
    margin-bottom: 1rem;
    transition: box-shadow 0.3s ease;
}

.course-item:hover {
    box-shadow: 0 0 10px rgba(134, 38, 51, 0.15);
    border-color: #862633;
}

.course-item h5 {
    font-size: 0.95rem;
    font-weight: 600;
    color: #2d2d2d;
    margin-bottom: 0.3rem;
}

.course-item p {
    font-size: 0.85rem;
    color: #777;
    margin-bottom: 0;
}

/* ======= Photo Gallery ======= */
.photo-placeholder {
    background-color: #eee;
    border-radius: 6px;
    height: 200px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: #aaa;
    font-size: 0.85rem;
    margin-bottom: 1rem;
}

/* ======= Apply Section ======= */
.apply-info {
    font-size: 0.92rem;
    line-height: 1.8;
}

.apply-info .info-label {
    font-weight: 600;
    color: #2d2d2d;
}

/* ======= Footer ======= */
.site-footer {
    max-width: 1000px;
    margin: 0 auto 2rem;
    text-align: center;
    padding: 1rem;
    font-size: 0.78rem;
    color: #aaa;
}

.site-footer a {
    color: #aaa;
}

.site-footer a:hover {
    color: #545454;
    text-decoration: none;
}

/* ======= HR ======= */
hr {
    border-top: 1px solid #e8e8e8;
    opacity: 1;
}

/* ======= Responsive ======= */
@media (max-width: 767px) {
    .page-wrapper {
        margin: 1rem;
        padding: 1.5rem;
    }

    .hero-section h1 {
        font-size: 1.8rem;
    }

    .hero-section .tagline {
        font-size: 1rem;
    }
}

@media (max-width: 991px) {
    .navbar-brand span {
        display: block;
        margin-left: 0;
        margin-top: 0.2rem;
    }
}