/* Nav */
.nav {
  display: flex;
  justify-content: space-between;
  align-items: center;
  height: var(--header-height);
  width: 100%;
}

.nav ul {
  list-style: none;
  display: flex;
  gap: 2rem;
  margin: 0;
  padding: 0;
}

.nav a {
  color: var(--text-color);
  font-weight: 500;
  font-family: var(--font-sub);
  font-size: 0.9rem;
  letter-spacing: 0;
}

.nav a:hover, .nav a.active {
  color: var(--text-color);
  text-decoration: none;
  opacity: 0.7;
}

.logo {
  font-family: var(--font-heading);
  font-size: 1.1rem;
  font-weight: 600;
  letter-spacing: 0;
  color: var(--text-color);
}

.nav-right {
  display: flex;
  align-items: center;
  gap: 1.5rem;
}

#theme-toggle {
  background: none;
  border: none;
  cursor: pointer;
  color: var(--text-muted);
  font-size: 1.05rem;
  padding: 0.2rem;
  display: flex;
  align-items: center;
  transition: color 0.2s;
  line-height: 1;
}

#theme-toggle:hover {
  color: var(--text-color);
}

/* Hero Section */
#hero {
  padding: 4rem 0;
  background: var(--bg-color);
  text-align: center;
  margin-bottom: 2rem;
}

#hero h1 {
  font-size: 3.5rem;
  margin-bottom: 1rem;
}

#hero p {
  font-size: 1.25rem;
  max-width: 600px;
  margin: 0 auto 2rem;
  color: var(--text-muted);
}

/* About Section */
#about {
  padding-bottom: 2rem; /* Reduced padding to sit closer to Education/Interests */
}

.about-content {
  display: flex;
  gap: 3rem;
  align-items: flex-start;
  flex-wrap: wrap;
}

.about-photo {
  flex: 0 0 300px;
  text-align: center;
}

.about-photo img {
  width: 100%;
  border-radius: 4px;
  box-shadow: 0 4px 12px rgba(0,0,0,0.4);
}

.about-links {
  display: flex;
  justify-content: center;
  gap: 0.75rem;
  flex-wrap: wrap;
  margin-top: 1.5rem;
}

.about-links a {
  background: transparent !important;
  border-radius: var(--border-radius) !important;
  border: 1px solid var(--border-color) !important;
  color: var(--text-muted) !important;
}

.about-links a:hover {
  color: var(--accent-color) !important;
  border-color: var(--accent-color) !important;
}

.about-details {
  flex: 1;
  min-width: 300px;
}

.about-details .lead {
  font-size: 1.2rem;
  color: var(--text-color);
}

@media (max-width: 768px) {
  .about-content {
    justify-content: center;
    gap: 2rem;
  }

  .about-photo {
    flex: 0 0 100%;
    max-width: 300px;
    margin: 0 auto;
  }

  .about-details {
    min-width: 100%;
    text-align: center;
  }

  .about-details h2 {
    display: block;
    border-bottom: none;
    margin-bottom: 1rem;
  }

  .about-details h2::after {
     content: "";
     display: block;
     width: 60px;
     height: 2px;
     background: var(--border-color);
     margin: 0.5rem auto 0;
  }
}

/* Section Headers */
.section-header {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  margin-bottom: 2rem;
}

@media (max-width: 768px) {
  .section-header {
    flex-direction: column;
    align-items: center;
    text-align: center;
    gap: 1rem;
  }
}

/* Info Grid (Education & Interests) */
.info-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 3rem;
  margin-bottom: 4rem;
  padding-top: 0; /* Ensure no extra top padding */
}

@media (max-width: 768px) {
  .info-grid {
    grid-template-columns: 1fr;
    gap: 2rem;
  }
}

/* Interests Container */
.interests-container {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
}

@media (max-width: 768px) {
  .interests-container {
    justify-content: center;
  }
}

/* Experience Toggle */
.experience-toggle {
  display: block;
  background: none;
  border: 1px solid color-mix(in srgb, var(--tag-accent) 40%, transparent);
  color: var(--tag-accent);
  cursor: pointer;
  font-family: var(--font-mono);
  font-size: 0.72rem;
  font-weight: 400;
  line-height: 1;
  letter-spacing: 0;
  text-transform: lowercase;
  padding: 0.4rem 1.2rem;
  margin: 1rem 0 0;
  text-decoration: none;
  width: auto;
  border-radius: 4px;
  transition: all 0.2s ease-in-out;
}

.experience-toggle:hover {
  background-color: var(--tag-accent);
  border-color: var(--tag-accent);
  color: var(--bg-color);
}

.experience-details {
  display: none;
}

.experience-details.expanded {
  display: block;
  animation: fadeIn 0.3s;
}

@media (max-width: 768px) {

  .experience-item {
    margin-bottom: 3rem; /* Ensure extra space between jobs on mobile */
  }
}

@keyframes fadeIn {
  from { opacity: 0; }
  to { opacity: 1; }
}

/* Experience Section */
.experience-list {
  position: relative;
  padding-left: 2rem;
  border-left: 1px solid var(--border-color);
}

.experience-item {
  position: relative;
  margin-bottom: 0;
}

.experience-item:last-child {
  margin-bottom: 0;
}

/* Keep a gap before Medtronic (different company) */
.experience-item:nth-last-child(2) {
  margin-bottom: 0.75rem;
}

.experience-item::before {
  content: "";
  position: absolute;
  left: -2.6rem;
  top: 0.5rem; /* Align with the role title */
  width: 0.625rem;
  height: 0.625rem;
  background: var(--card-bg);
  border: 2px solid var(--tag-accent);
  border-radius: 50%;
  z-index: 1;
}

.experience-item.current::before {
  background: var(--tag-accent);
}

.experience-card {
  background: transparent;
  border-radius: 0;
  padding: 0;
  border: none;
}

.experience-details {
  margin: 0;
  padding-left: 1.5rem;
  color: var(--text-color);
  list-style-type: disc;
}

.experience-details li {
  margin-bottom: 0.5rem;
  padding-left: 0.25rem;
}

/* Cards */
.grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
  gap: 2rem;
}

.card {
  background: var(--card-bg);
  border: 1px solid var(--border-color);
  border-radius: var(--border-radius);
  padding: 2rem;
  transition: border-color 0.2s;
  box-shadow: none;
  display: flex;
  flex-direction: column;
}

.card:hover {
  border-color: var(--accent-color);
}

.card img {
  width: 100%;
  height: 200px;
  object-fit: cover;
  border-radius: calc(var(--border-radius) - 4px);
  margin-bottom: 1.5rem;
  background-color: var(--card-bg);
}

/* Shrink project cards on mid-size and wide desktop screens */
@media (min-width: 769px) {
  .grid {
    grid-template-columns: repeat(auto-fill, minmax(210px, 1fr));
    gap: 1.5rem;
  }

  .card {
    padding: 1.25rem;
  }

  .card img {
    height: 140px;
    margin-bottom: 1rem;
  }
}

/* Mobile adjustments for cards */
@media (max-width: 768px) {
  .card img {
    display: none; /* Hide images on phone */
  }

  .grid {
    grid-template-columns: 1fr; /* Stack cards */
    gap: 1rem;
  }

  .card {
    padding: 1.5rem;
  }
}

.card h3 {
  font-size: 1.25rem;
  margin-bottom: 0;
}

.card h3 a {
  color: var(--heading-color);
}

.card h3 a:hover {
  color: var(--accent-color);
}

.card p {
  color: var(--text-muted);
  font-size: 0.95rem;
  margin-bottom: 0;
  flex-grow: 1;
}

.card small {
  font-family: var(--font-mono);
  color: var(--tag-accent);
  font-size: 0.75rem;
}

/* Publications */
.pub-item {
  background: transparent;
  padding: 1.5rem 0;
  border-radius: 0;
  margin-bottom: 0;
  box-shadow: none;
  border: none;
  border-bottom: 1px solid var(--border-color);
}

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

.pub-title {
  font-weight: 700;
  font-size: 1.05rem;
  display: block;
  margin-bottom: 0.5rem;
  color: var(--heading-color);
}

.pub-authors {
  color: var(--text-color);
  font-family: var(--font-main);
  font-size: 0.875rem;
  margin-bottom: 0.5rem;
}

.pub-meta {
  color: var(--text-muted);
  font-size: 0.9rem;
  font-style: italic;
  margin: 0.5rem 0 1rem;
}

.pub-meta-row {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  gap: 1rem;
  flex-wrap: wrap;
}

.pub-meta-row .pub-meta {
  margin: 0.5rem 0;
}

.pub-meta-row .pub-links {
  display: inline-flex;
  gap: 0.5rem;
}

/* Compact spacing for the featured and full publications lists */
#featured-pubs .section-header {
  margin-bottom: 0;
}

#featured-pubs .section-header h2 {
  margin-bottom: 0;
}

#featured-pubs .pub-item:first-of-type {
  padding-top: 0;
}

#featured-pubs .pub-item,
#pub-list .pub-item {
  padding: 0.85rem 0;
}

#featured-pubs .pub-title,
#pub-list .pub-title {
  font-size: 1rem;
  margin-bottom: 0.05rem;
}

#featured-pubs .pub-authors,
#pub-list .pub-authors {
  margin-bottom: 0.05rem;
}

#featured-pubs .pub-meta-row .pub-meta,
#pub-list .pub-meta-row .pub-meta {
  margin: 0.05rem 0;
}

/* Publication abstract (static block on detail pages; toggled body in list) */
.pub-abstract {
  margin-bottom: 0.5rem;
  color: var(--text-color);
}

.pub-abstract-body {
  margin-top: 0.75rem;
  color: var(--text-color);
  border-left: 3px solid var(--border-color);
  padding-left: 1rem;
}

/* Badges */
.badge {
  display: inline-block;
  padding: 0.35em 0.65em;
  font-size: 0.72em;
  font-weight: 400;
  font-family: var(--font-mono);
  line-height: 1;
  text-align: center;
  white-space: nowrap;
  vertical-align: baseline;
  border-radius: 3px;
  background: transparent;
  color: var(--tag-accent);
  border: 1px solid color-mix(in srgb, var(--tag-accent) 30%, transparent);
  margin-right: 0.5rem;
  letter-spacing: 0;
  text-transform: lowercase;
}

.badge-primary {
  background-color: var(--accent-color);
  color: #0f172a;
  border-color: var(--accent-color);
}

/* Buttons */
.btn {
  display: inline-block;
  font-weight: 500;
  text-align: center;
  vertical-align: middle;
  user-select: none;
  padding: 0.6rem 1.5rem;
  font-size: 1rem;
  line-height: 1.5;
  border-radius: 4px;
  transition: all 0.2s ease-in-out;
  border: 1px solid transparent;
  cursor: pointer;
  font-family: var(--font-sub);
}

.btn-primary {
  background-color: var(--accent-color);
  color: #0f172a;
}

.btn-primary:hover {
  background-color: var(--accent-hover);
  text-decoration: none;
  color: #0f172a;
}

.btn-sm {
  padding: 0.3rem 0.8rem;
  font-size: 0.875rem;
}

.btn-outline {
  color: var(--text-color);
  border-color: var(--border-color);
  background: transparent;
}

.btn-outline:hover {
  background-color: var(--text-color);
  color: var(--bg-color);
  text-decoration: none;
}

/* Publication link buttons: match the home page badge text style */
.pub-links .btn-outline {
  color: var(--tag-accent);
  border-color: color-mix(in srgb, var(--tag-accent) 40%, transparent);
  font-family: var(--font-mono);
  font-weight: 400;
  font-size: 0.72rem;
  text-transform: lowercase;
  letter-spacing: 0;
  padding: 0.35em 0.65em;
  border-radius: 3px;
  line-height: 1;
}

.pub-links .btn-outline:hover {
  background-color: var(--tag-accent);
  border-color: var(--tag-accent);
  color: var(--bg-color);
}

/* Forms */
.form-control {
  display: block;
  width: 100%;
  padding: 0.75rem 1rem;
  font-size: 1rem;
  line-height: 1.5;
  color: var(--text-color);
  background-color: var(--card-bg);
  border: 1px solid var(--border-color);
  border-radius: 6px;
  transition: border-color 0.15s ease-in-out, box-shadow 0.15s ease-in-out;
}

.form-control:focus {
  border-color: var(--accent-color);
  outline: 0;
  box-shadow: 0 0 0 3px rgba(56, 189, 248, 0.15);
}

/* Normalize <select> so it matches the text input height */
select.form-control {
  appearance: none;
  -webkit-appearance: none;
  -moz-appearance: none;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 24 24' fill='none' stroke='%2394a3b8' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpolyline points='6 9 12 15 18 9'%3E%3C/polyline%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 0.85rem center;
  padding-right: 2.5rem;
}

.filters {
  display: flex;
  gap: 1rem;
  margin-bottom: 2rem;
  flex-wrap: wrap;
}