/* General layout */
body {
    background-color: #fff;
    color: #212529;
    font-family: "Helvetica Neue", Helvetica, Arial, sans-serif;
    font-size: 1.2rem;
    line-height: 1.6;
}

/* Colour scheme */
:root {
    --color-dark: #212529;
    --color-gray: #6c757d;
    --color-light: #f8f9fa;
}

/* Grey filter for images */
.grey-filter {
  filter: grayscale(100%);
}

/* Headings */
h1, h2, h3, h4, h5 {
    font-weight: 600;
    margin-top: 1rem;
    margin-bottom: 1rem;
    color: var(--color-dark);
}

/* Black line */
hr.black-line {
  border: none;
  height: 2px;                 /* thickness of the line */
  background-color: black;    
  margin: 0 0 1.5rem 0;   /* no top margin, 1.5rem bottom */
  opacity: 1;
}

/* Navbar */
.navbar {
    background-color: var(--color-dark) !important;
}

.navbar-link {
    color: #fff !important;
}

.navbar-link.active {
    font-weight: bold;
    color: var(--color-dark) !important;
}

/* Footer */
footer {
    background-color: var(--color-dark);
    color: #fff;
    font-size: 0.9rem;
}

footer a {
    color: var(--color-gray);
    text-decoration: none;
}

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

/* Carousel */
.carousel-item {
  height: 650px; /* or whatever height you want */
}

.carousel-item img {
  height: 100% !important;
  width: 100% !important;
  object-fit: cover !important;
  object-position: top !important; /* <-- crop from top */
}

/* Lab member cards */
.card-img-top {
    width: 100%;
    height: 350px; 
    object-fit: cover;
    border-radius: 4%;
    margin: 0rem auto 0;
    display: block;
    filter: grayscale(100%);
    transition: transform 0.3s ease, filter 0.3s ease;
}

.card {
    border: none;
}

.card-body {
    padding: 1rem;
}

.card-title {
    font-size: 1.2rem;
    font-weight: 600;
    margin-top: 1rem;
    color: var(--color-dark);
}

.fw-bold {
    font-weight: 500;
    font-size: 1.2rem;
    color: var(--color-dark);
}

.card-text {
    font-size: 1.2rem;
    color: var(--color-dark);
    margin-top: 0.25rem;
}

/* List and paragraph styling within the card-body */
.card-body ul {
    margin-top: 0.5rem;
    margin-bottom: 0.5rem;
    padding-left: 1.2rem;
}

.card-body li { /* For bullet point lists */
    margin-bottom: 0.25rem;
}

.card-body p.card-text {
    margin-top: 0.5rem;
}


/* Ensure cards remain equal in height */
.row.equal-height {
    display: flex;
    flex-wrap: wrap;
}

.row.equal-height > .col-6,
.row.equal-height > .col-md-3 {
    display: flex;
}

.row.equal-height .card {
    flex: 1; 
    display: flex;
    flex-direction: column;
}

/* PI card */
.pi-card {
  display: flex;
  flex-direction: row;
  align-items: flex-start;
  border: none;
  background: transparent;
  flex-wrap: nowrap;
}

.pi-img {
  width: 100%;
  height: auto;
  border-radius: 8px;
  object-fit: cover;
}

.pi-image-container {
  flex: 0 0 50%;
  max-width: 50%;
}

.pi-image-container .pi-img {
  width: 100%;
  height: auto;
  border-radius: 8px;
  object-fit: cover;
}

.pi-text {
  flex: 1;
  text-align: left;
}

/* Responsive: stack vertically on small screens */
@media (max-width: 768px) {
  .pi-card {
    flex-direction: column;
    align-items: center;
    text-align: left;
  }

  .pi-image-container {
    flex: 0 0 auto;
    margin-right: 0 !important;
    margin-bottom: 1rem;
  }

  .pi-text {
    text-align: left;
  }
}

/* List of publications */
.publication {
  font-size: 1.2rem;
  line-height: 1.6;
  margin-bottom: 0.75rem;
}

.publication em {
    font-style: italic;
}

.publication-title {
  font-weight: 600;
  color: var(--color-dark);
  text-decoration: none;
}

.publication-title:hover {
  text-decoration: underline;
}

/* Section spacing */
.page-section h2 {
    font-weight: 600;
    color: var(--color-dark);
    margin-bottom: 1.5rem;
    border-bottom: 2px solid var(--color-dark);
    padding-bottom: 0.5rem;
}