/* Vertical Timeline */
.timeline {
  position: relative;
  padding: 0;
}

.timeline-item {
  display: flex;
  gap: 1.25rem;
  padding-bottom: 1.75rem;
}

.timeline-item:last-child {
  padding-bottom: 0;
}

.timeline-marker {
  flex-shrink: 0;
  width: 16px;
  display: flex;
  flex-direction: column;
  align-items: center;
}

/* Line segment above the dot */
.timeline-marker::before {
  content: '';
  width: 2px;
  flex: 1;
  background: var(--bs-primary, #007bff);
}

/* Line segment below the dot */
.timeline-marker::after {
  content: '';
  width: 2px;
  flex: 1;
  background: var(--bs-primary, #007bff);
}

/* Hide line above first dot */
.timeline-item:first-child .timeline-marker::before {
  background: transparent;
}

/* Hide line below last dot */
.timeline-item:last-child .timeline-marker::after {
  background: transparent;
}

.timeline-dot {
  width: 16px;
  height: 16px;
  flex-shrink: 0;
  border-radius: 50%;
  background: var(--bs-body-bg, #fff);
  border: 3px solid var(--bs-primary, #007bff);
  box-shadow: 0 0 0 3px
    color-mix(in srgb, var(--bs-primary, #007bff) 15%, transparent);
}

.timeline-content {
  flex: 1;
  background: var(--bs-tertiary-bg, #f8f9fa);
  border-radius: 0.5rem;
  padding: 1rem 1.25rem;
  border: 1px solid var(--bs-border-color, #dee2e6);
}

.timeline-header {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  gap: 0.75rem;
  margin-bottom: 0.25rem;
}

.timeline-title {
  font-size: 1.05rem;
  font-weight: 600;
  margin: 0;
  line-height: 1.3;
}

.timeline-company {
  font-size: 0.9rem;
  color: var(--bs-secondary-color, #6c757d);
}

.timeline-company a {
  display: inline-block;
  color: var(--text-link-color) !important;
  text-decoration: none;
  font-weight: 500;
}

.timeline-company a::after {
  content: "";
  display: block;
  width: 0px;
  height: 2px;
  bottom: 0.37em;
  background-color: var(--primary-color);
  transition: all 0.25s cubic-bezier(0.645, 0.045, 0.355, 1);
  opacity: 0.5;
}

.timeline-company a:hover::after,
.timeline-company a:focus::after,
.timeline-company a:active::after {
  width: 100%;
}

.timeline-date {
  font-size: 0.8rem;
  color: var(--bs-secondary-color, #6c757d);
  white-space: nowrap;
  padding-top: 2px;
}

.timeline-body {
  margin-top: 0.5rem;
  font-size: 0.9rem;
  color: var(--bs-body-color);
  line-height: 1.6;
}

.timeline-body p {
  margin-bottom: 0.25rem;
}

.timeline-body ul {
  padding-left: 1.2rem;
  margin-bottom: 0;
}

.timeline-body li {
  margin-bottom: 0.15rem;
}

/* Uniform link styling — match theme's animated underline pattern */
#achievements a.card,
#publications a.card {
  display: block;
  text-decoration: none;
  color: var(--text-link-color) !important;
}

#achievements a.card .card-title,
#publications a.card .card-title {
  display: inline-block;
  text-decoration: none;
  color: var(--text-link-color) !important;
}

#achievements a.card .card-title::after,
#publications a.card .card-title::after {
  content: "";
  display: block;
  width: 0px;
  height: 2px;
  bottom: 0.37em;
  background-color: var(--primary-color);
  transition: all 0.25s cubic-bezier(0.645, 0.045, 0.355, 1);
  opacity: 0.5;
}

#achievements a.card:hover .card-title::after,
#achievements a.card:focus .card-title::after,
#publications a.card:hover .card-title::after,
#publications a.card:focus .card-title::after {
  width: 100%;
}

#achievements a.card .card-text,
#publications a.card .card-text {
  color: var(--text-color) !important;
  opacity: 0.9;
}

/* Inline links inside card text (e.g. Manuscript · Slides) */
#achievements .card-text a,
#publications .card-text a {
  display: inline-block;
  color: var(--text-link-color) !important;
  text-decoration: none;
  font-weight: 500;
}

#achievements .card-text a::after,
#publications .card-text a::after {
  content: "";
  display: block;
  width: 0px;
  height: 2px;
  bottom: 0.37em;
  background-color: var(--primary-color);
  transition: all 0.25s cubic-bezier(0.645, 0.045, 0.355, 1);
  opacity: 0.5;
}

#achievements .card-text a:hover::after,
#achievements .card-text a:focus::after,
#publications .card-text a:hover::after,
#publications .card-text a:focus::after {
  width: 100%;
}

/* Match card border-radius across all sections */
#publications .card,
#disclosures .card {
  border-radius: 1rem;
}

/* Project card images */
.card-img-top {
  object-fit: contain;
  max-height: 80px;
  padding: 0.5rem 0.5rem 0;
}

.card-img-top[src=""] {
  display: none;
}

/* Plain timeline content (transparent background, keep border) */
.timeline-content-plain {
  background: transparent;
}

/* ============================================
   Dark mode fixes
   The theme's .dark class sets CSS variables
   but doesn't apply them to backgrounds/text.
   ============================================ */

/* Core: body and html backgrounds + text color */
body.dark {
  background-color: var(--background-color-dark, #18191a) !important;
  color: var(--text-color-dark, #e4e6eb) !important;
}

body.dark > * {
  background-color: var(--background-color-dark, #18191a) !important;
  color: var(--text-color-dark, #e4e6eb) !important;
}

/* Navbar */
body.dark .navbar {
  background-color: var(--background-color-dark, #18191a) !important;
}

body.dark .navbar .nav-link,
body.dark .navbar .navbar-brand {
  color: var(--text-color-dark, #e4e6eb) !important;
}

/* Hero section */
body.dark #hero h1 {
  color: var(--primary-color-dark, #ffffff) !important;
}

body.dark #hero h2,
body.dark #hero .subtitle {
  color: var(--text-secondary-color-dark, #b0b3b8) !important;
}

body.dark .social-icon {
  color: var(--text-color-dark, #e4e6eb) !important;
  border-color: var(--text-secondary-color-dark, #b0b3b8) !important;
}

body.dark .social-icon:hover {
  background-color: var(--secondary-color-dark, #212529) !important;
}

body.dark .social-icon img {
  filter: brightness(0) invert(1);
}

/* Hero resume button */
body.dark #hero .btn {
  color: var(--text-color-dark, #e4e6eb) !important;
  border-color: var(--text-secondary-color-dark, #b0b3b8) !important;
}

/* Section headings */
body.dark h3,
body.dark h2 {
  color: var(--text-color-dark, #e4e6eb) !important;
}

/* About section */
body.dark #about p,
body.dark #about li,
body.dark #about .text-secondary {
  color: var(--text-secondary-color-dark, #b0b3b8) !important;
}

/* Timeline */
body.dark .timeline-content {
  background: var(--secondary-background-color-dark, #212529);
  border-color: #495057;
  color: var(--text-color-dark, #e4e6eb);
}

body.dark .timeline-content-plain {
  background: transparent;
}

body.dark .timeline-body,
body.dark .timeline-body p,
body.dark .timeline-body li {
  color: var(--text-color-dark, #e4e6eb);
}

body.dark .timeline-title {
  color: var(--text-color-dark, #e4e6eb);
}

body.dark .timeline-company,
body.dark .timeline-content h5 {
  color: var(--text-secondary-color-dark, #b0b3b8);
}

body.dark .timeline-date {
  color: var(--text-secondary-color-dark, #b0b3b8);
}

body.dark .timeline-dot {
  background: var(--background-color-dark, #18191a);
}

/* Bootstrap cards (education, projects) */
body.dark .card {
  background: var(--secondary-background-color-dark, #212529) !important;
  border-color: #495057;
  color: var(--text-color-dark, #e4e6eb) !important;
}

body.dark .card .card-body,
body.dark .card .card-title,
body.dark .card .card-text,
body.dark .card small {
  color: var(--text-color-dark, #e4e6eb) !important;
}

body.dark .card a h6 {
  color: var(--text-link-color-dark, #ffffff) !important;
}

/* Contact section */
body.dark #contact .btn {
  color: var(--text-color-dark, #e4e6eb) !important;
  border-color: var(--text-secondary-color-dark, #b0b3b8) !important;
}

body.dark #contact p {
  color: var(--text-secondary-color-dark, #b0b3b8) !important;
}

/* Footer */
body.dark footer {
  background-color: var(--background-color-dark, #18191a) !important;
  color: var(--text-color-dark, #e4e6eb) !important;
}

body.dark footer p,
body.dark footer a,
body.dark footer span {
  color: var(--text-secondary-color-dark, #b0b3b8) !important;
}

/* Badge styling in dark mode */
body.dark .badge {
  background-color: #495057 !important;
  color: var(--text-color-dark, #e4e6eb) !important;
}

/* Links in dark mode */
body.dark a:not(.btn):not(.social-icon):not(.nav-link) {
  color: var(--text-link-color-dark, #ffffff);
}

/* Responsive: stack date below header on small screens */
@media (max-width: 576px) {
  .timeline-header {
    flex-direction: column;
    gap: 0.15rem;
  }
}