/* Components: buttons, modals, timeline, skill tags, tooltip */

.button {
  display: inline-block;
  padding: var(--space-sm) var(--space-lg);
  border-radius: var(--radius-md);
  border: none;
  font-weight: 500;
  transition: background-color var(--transition-fast), color var(--transition-fast);
}

.button-primary {
  background-color: var(--color-primary);
  color: #fff;
}

.button-primary:hover {
  background-color: var(--color-primary-hover);
}

.button-secondary {
  background-color: var(--color-surface);
  color: var(--color-text);
  border: 1px solid var(--color-border);
}

.button-secondary:hover {
  background-color: var(--color-border);
}

.modal {
  position: fixed;
  inset: 0;
  z-index: 200;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: var(--space-lg);
}

.modal[hidden] {
  display: none;
}

.modal-backdrop {
  position: absolute;
  inset: 0;
  background-color: rgba(0, 0, 0, 0.7);
}

.modal-content {
  position: relative;
  background-color: var(--color-surface);
  padding: var(--space-xl);
  border-radius: var(--radius-lg);
  max-width: 400px;
  width: 100%;
  box-shadow: 0 4px 24px rgba(0, 0, 0, 0.5);
  border: 1px solid var(--color-border);
}

.modal-title {
  margin-bottom: var(--space-sm);
  font-size: 1.25rem;
}

.modal-desc {
  margin-bottom: var(--space-lg);
  color: var(--color-text-muted);
  font-size: 0.9375rem;
}

.modal-actions {
  display: flex;
  gap: var(--space-md);
  justify-content: flex-end;
}

.modal-actions .button,
.modal-actions a.button {
  text-decoration: none;
}

.skill-tag {
  display: inline-block;
  padding: var(--space-xs) var(--space-md);
  border-radius: var(--radius-sm);
  background-color: var(--color-surface);
  border: 1px solid var(--color-border);
  font-size: 0.875rem;
  cursor: pointer;
  transition: background-color var(--transition-fast), border-color var(--transition-fast);
}

.skill-tag:hover {
  background-color: var(--color-primary);
  color: #fff;
  border-color: var(--color-primary);
}

.skill-tag[aria-pressed="true"] {
  outline: 2px solid var(--color-primary);
  outline-offset: 2px;
}

.timeline-item.highlight {
  background-color: var(--color-highlight);
  outline: 2px solid var(--color-highlight-border);
  outline-offset: 2px;
}

.skill-tooltip {
  position: fixed;
  z-index: 150;
  padding: var(--space-sm) var(--space-md);
  background-color: var(--color-surface);
  color: var(--color-text);
  border: 1px solid var(--color-border);
  font-size: 0.8125rem;
  border-radius: var(--radius-sm);
  pointer-events: none;
  max-width: 220px;
}

.skill-tooltip[hidden] {
  display: none;
}

.timeline {
  --timeline-overlap: 2.75rem;
  position: relative;
  display: grid;
  grid-template-columns: 1fr 2px 1fr;
  grid-auto-rows: auto;
  gap: 0 var(--space-md);
  row-gap: 0;
  max-width: 960px;
  margin: 0 auto;
  padding: 0 var(--space-md) var(--timeline-overlap);
  align-items: start;
}

.timeline::before {
  content: "";
  position: absolute;
  top: 0;
  bottom: 0;
  left: 50%;
  width: 2px;
  margin-left: -1px;
  background-color: var(--color-border);
  pointer-events: none;
}

.timeline-item {
  position: relative;
  min-height: 0;
  margin-bottom: calc(-1 * var(--timeline-overlap, 2.75rem));
  transition: background-color var(--transition-normal), outline var(--transition-normal);
}

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

.timeline-item[data-side="left"] {
  grid-column: 1;
  padding-right: var(--space-md);
}

.timeline-item[data-side="right"] {
  grid-column: 3;
  padding-left: var(--space-md);
}

.timeline-item[data-side="left"]::before {
  left: auto;
  right: calc(var(--space-md) / 2 - 6px);
  top: 0.5rem;
}

.timeline-item[data-side="right"]::before {
  left: calc(-1 * (var(--space-md) / 2 + 6px));
  right: auto;
  top: 0.5rem;
}

.timeline-item::before {
  content: "";
  position: absolute;
  width: 12px;
  height: 12px;
  border-radius: 50%;
  background-color: var(--color-primary);
  border: 2px solid var(--color-bg);
  z-index: 1;
}

.timeline-item-content {
  width: 100%;
  max-width: 100%;
  padding: var(--space-md) var(--space-lg);
  border-radius: var(--radius-md);
}

@media (max-width: 768px) {
  .timeline {
    position: relative;
    grid-template-columns: 1fr;
    padding-left: var(--space-xl);
    padding-bottom: var(--space-lg);
  }

  .timeline-item {
    margin-bottom: var(--space-xl);
  }

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

  .timeline::before {
    position: absolute;
    left: var(--space-lg);
    top: 0;
    bottom: 0;
    width: 2px;
    height: auto;
    grid-column: auto;
    grid-row: auto;
    justify-self: auto;
    margin-left: 0;
  }

  .timeline-item[data-side="left"],
  .timeline-item[data-side="right"] {
    grid-column: 1;
    grid-row: auto !important;
    padding-left: var(--space-md);
    padding-right: 0;
  }

  .timeline-item::before {
    left: calc(-1 * var(--space-xl) + var(--space-lg) - 6px);
    right: auto;
  }

  .timeline-item-content {
    width: 100%;
  }
}

.timeline-item-content .timeline-period {
  font-weight: 600;
  color: var(--color-primary);
  font-size: 0.9375rem;
  margin-bottom: var(--space-xs);
}

.timeline-item-content .timeline-title {
  font-size: 1.125rem;
  margin-bottom: var(--space-xs);
}

.timeline-item-content .timeline-organization {
  color: var(--color-text-muted);
  font-size: 0.9375rem;
  margin-bottom: var(--space-sm);
}

.timeline-item-content .timeline-description {
  margin-bottom: var(--space-md);
  font-size: 0.9375rem;
}

.timeline-item-content .timeline-description .timeline-description-list {
  margin: var(--space-sm) 0 var(--space-md);
  padding-left: 1.25rem;
  list-style-type: disc;
}

.timeline-item-content .timeline-description .timeline-description-list li {
  margin-bottom: var(--space-xs);
}

.timeline-item-content .timeline-description .timeline-description-paragraph {
  margin: 0 0 var(--space-sm);
}

.timeline-item-content .timeline-description .timeline-description-paragraph:last-child {
  margin-bottom: 0;
}

.timeline-item-content .timeline-skills {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-xs);
  margin-bottom: var(--space-md);
}

.timeline-item-content .timeline-links {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-md);
}

.timeline-item-content .timeline-links a {
  font-size: 0.875rem;
}

.timeline-links a[data-type="document"] {
  cursor: pointer;
}

.book-card {
  padding: var(--space-md);
  background-color: var(--color-surface);
  border-radius: var(--radius-md);
  border: 1px solid var(--color-border);
  min-width: 140px;
}

.book-title {
  font-weight: 600;
  font-size: 0.875rem;
  margin-bottom: var(--space-xs);
}

.book-author {
  font-size: 0.8125rem;
  color: var(--color-text-muted);
}

.contact-entry {
  margin-bottom: var(--space-md);
}

.contact-entry:last-child {
  margin-bottom: 0;
}

.contact-label {
  font-size: 0.8125rem;
  color: var(--color-text-muted);
  margin-bottom: var(--space-xs);
}

.contact-value a {
  font-weight: 500;
}

.about-photo-placeholder,
.about-photo,
.about-video {
  border-radius: var(--radius-md);
  display: block;
}

.about-video {
  border: 1px solid var(--color-border);
}

.about-photo-placeholder {
  width: 100%;
  min-height: 240px;
  background-color: var(--color-surface);
  border: 1px dashed var(--color-border);
}

.about-photo {
  border: 1px solid var(--color-border);
}

/* Smaller about images (e.g. in secret page) use default size when not in .about-half--image */
.about-half--image .about-photo-placeholder {
  min-height: 240px;
}