/* ============================================
   GitHub Section — 3D Graph + Repo Cards
   ============================================ */

/* ---- Profile link badges (sticky) ---- */
.github-profiles {
  position: sticky;
  top: 96px;                        /* below nav, not clipped */
  z-index: 100;
  display: flex;
  gap: 8px;
  justify-content: flex-end;
  padding: 0 var(--container-pad);
  max-width: 1200px;
  margin: -28px auto 12px;
  pointer-events: none;
}

.github-profiles__link {
  pointer-events: auto;
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 6px 14px;
  font-size: 0.8rem;
  font-weight: 600;
  letter-spacing: 0.02em;
  color: var(--text-muted);
  background: var(--bg-surface);
  border: 1px solid var(--border);
  border-radius: 999px;
  text-decoration: none;
  transition: color 0.2s, border-color 0.2s, background 0.2s;
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
}

.github-profiles__link:hover {
  color: var(--text);
  border-color: var(--accent);
  background: var(--bg-secondary);
}

.github-profiles__link svg {
  flex-shrink: 0;
}

/* ---- Graph container ---- */
.github-graph {
  position: relative;
  width: 100%;
  max-width: 1200px;
  margin: 0 auto 48px;
  padding: 0 var(--container-pad);
}

.github-graph__viewport {
  position: relative;
  width: 100%;
  height: 420px;
  border-radius: var(--r-lg);
  overflow: hidden;
  border: 1px solid var(--border);
  background: var(--bg-secondary);
}

#github-graph-canvas {
  display: block;
  width: 100%;
  height: 100%;
}

/* ---- Date label ---- */
.github-graph__date {
  position: absolute;
  top: 20px;
  right: 32px;
  z-index: 10;
  font-size: 0.92rem;
  font-weight: 600;
  color: var(--text-secondary);
  background: var(--bg-elevated);
  border: 1px solid var(--border);
  padding: 6px 16px;
  border-radius: var(--r-pill);
  letter-spacing: 0.3px;
  pointer-events: none;
  transition: color var(--t-fast), background var(--t-fast), border-color var(--t-fast);
}

/* ---- Scroll hint ---- */
.github-graph__hint {
  text-align: center;
  font-size: 0.78rem;
  color: var(--text-muted);
  margin-top: 10px;
  letter-spacing: 0.3px;
}

/* ---- Tooltip ---- */
.github-tooltip {
  position: absolute;
  z-index: 20;
  pointer-events: none;
  display: none;
  background: var(--bg-elevated);
  color: var(--text-primary);
  border: 1px solid var(--border);
  border-radius: var(--r-sm);
  padding: 8px 14px;
  font-size: 0.8rem;
  line-height: 1.5;
  box-shadow: var(--shadow-md);
  white-space: nowrap;
}

.github-tooltip strong {
  font-weight: 700;
}

.github-tooltip span {
  color: var(--text-muted);
  font-size: 0.74rem;
}

/* ---- Repo section ---- */
.github-repos {
  display: flex;
  flex-direction: column;
  gap: 48px;
  margin-top: 16px;
}

.github-repos__heading {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 1.1rem;
  font-weight: 700;
  color: var(--text-primary);
  margin-bottom: 4px;
}

.github-repos__heading svg {
  color: var(--text-muted);
  flex-shrink: 0;
}

.github-repos__sub {
  font-size: 0.88rem;
  color: var(--text-muted);
  margin-bottom: 20px;
}

.github-repos__grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 16px;
}

/* ---- Repo Card ---- */
.gh-repo-card {
  background: var(--bg-secondary);
  border: 1px solid var(--border);
  border-radius: var(--r-lg);
  padding: 22px 24px 18px;
  display: flex;
  flex-direction: column;
  gap: 12px;
  transition: border-color var(--t-base), transform var(--t-base), box-shadow var(--t-base);
  text-decoration: none;
  color: inherit;
}

.gh-repo-card--link:hover {
  border-color: var(--border-hover);
  transform: translateY(-3px);
  box-shadow: var(--shadow-md);
  cursor: pointer;
}

.gh-repo-card__top {
  flex: 1;
}

.gh-repo-card__name-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 8px;
  margin-bottom: 6px;
}

.gh-repo-card__name {
  font-weight: 700;
  font-size: 1rem;
  color: var(--accent);
  letter-spacing: -0.01em;
}

.gh-repo-card__lock {
  color: var(--text-muted);
  flex-shrink: 0;
}

.gh-repo-card__arrow {
  color: var(--text-muted);
  flex-shrink: 0;
  transition: transform var(--t-fast), color var(--t-fast);
}

.gh-repo-card--link:hover .gh-repo-card__arrow {
  color: var(--accent);
  transform: translate(2px, -2px);
}

.gh-repo-card__desc {
  font-size: 0.84rem;
  color: var(--text-secondary);
  line-height: 1.5;
}

/* ---- Card meta row ---- */
.gh-repo-card__meta {
  display: flex;
  align-items: center;
  gap: 14px;
  font-size: 0.78rem;
  color: var(--text-muted);
}

.gh-repo-card__lang {
  display: flex;
  align-items: center;
  gap: 5px;
  font-weight: 600;
}

.gh-repo-card__dot {
  width: 10px;
  height: 10px;
  border-radius: 50%;
  display: inline-block;
}

.gh-repo-card__stat {
  color: var(--text-muted);
}

.gh-repo-card__recent {
  color: var(--accent);
  font-weight: 600;
}

/* ---- Commit bar ---- */
.gh-repo-card__bar-track {
  width: 100%;
  height: 4px;
  background: var(--track-bg);
  border-radius: 2px;
  overflow: hidden;
}

.gh-repo-card__bar-fill {
  height: 100%;
  border-radius: 2px;
  background: var(--accent-gradient);
  transition: width 0.6s var(--ease);
}

/* ---- Footer row ---- */
.gh-repo-card__footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  font-size: 0.74rem;
}

.gh-repo-card__badge {
  padding: 2px 10px;
  border-radius: var(--r-pill);
  font-weight: 600;
  font-size: 0.7rem;
  letter-spacing: 0.3px;
  text-transform: uppercase;
}

.gh-repo-card__badge--pub {
  background: var(--accent-soft);
  color: var(--accent);
}

.gh-repo-card__badge--priv {
  background: var(--overlay-subtle);
  color: var(--text-muted);
}

.gh-repo-card__updated {
  color: var(--text-muted);
}

/* ---- Language Stats ---- */
.github-langs {
  margin-bottom: 48px;
}

.github-langs__title {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 1.1rem;
  font-weight: 700;
  color: var(--text-primary);
  margin-bottom: 4px;
}

.github-langs__title svg {
  color: var(--text-muted);
  flex-shrink: 0;
}

/* Percentage bar */
.github-langs__bar {
  display: flex;
  width: 100%;
  height: 10px;
  border-radius: 5px;
  overflow: hidden;
  background: var(--track-bg);
  margin-bottom: 16px;
  gap: 2px;
}

.github-langs__bar-seg {
  height: 100%;
  min-width: 3px;
  border-radius: 2px;
  transition: opacity var(--t-fast), transform var(--t-fast);
  position: relative;
  cursor: pointer;
}

.github-langs__bar-seg[data-lang] {
  cursor: pointer;
}

.github-langs__bar:hover .github-langs__bar-seg {
  opacity: 0.5;
}

.github-langs__bar .github-langs__bar-seg:hover {
  opacity: 1;
  transform: scaleY(1.3);
}

.github-langs__bar-seg:first-child { border-radius: 5px 2px 2px 5px; }
.github-langs__bar-seg:last-child  { border-radius: 2px 5px 5px 2px; }
.github-langs__bar-seg:only-child  { border-radius: 5px; }

/* Language bar tooltip */
.github-langs__tooltip {
  position: absolute;
  top: 30px;
  left: 0;
  transform: translateX(-50%);
  background: var(--bg-elevated);
  color: var(--text-primary);
  border: 1px solid var(--border);
  border-radius: 6px;
  padding: 4px 10px;
  font-size: 0.75rem;
  font-weight: 600;
  white-space: nowrap;
  pointer-events: none;
  opacity: 0;
  transition: opacity 0.1s ease;
  box-shadow: 0 2px 8px rgba(0,0,0,0.12);
  display: flex;
  align-items: center;
  gap: 6px;
  z-index: 20;
}

.github-langs__tooltip--visible {
  opacity: 1;
}

.github-langs__tooltip-dot {
  display: inline-block;
  width: 8px;
  height: 8px;
  border-radius: 50%;
  flex-shrink: 0;
}

.github-langs__tooltip-pct {
  color: var(--text-muted);
  font-weight: 500;
}

/* Legend row — hidden, info merged into grid cards */
.github-langs__legend {
  display: none;
}

/* Language grid container */
.github-langs__grid {
  display: flex;
  flex-direction: column;
  gap: 6px;
}

/* 3-column row using flexbox (independent columns) */
.github-langs__columns {
  display: flex;
  gap: 6px;
  align-items: flex-start;
}

.github-langs__col {
  flex: 1;
  display: flex;
  flex-direction: column;
  gap: 6px;
  min-width: 0;
}

/* Each language card */
.github-langs__card {
  background: var(--bg-secondary);
  border: 1px solid var(--border);
  border-radius: var(--r-sm);
  transition: border-color var(--t-base), box-shadow var(--t-base);
}

.github-langs__card:hover {
  border-color: var(--border-hover);
  box-shadow: var(--shadow-sm);
}

.github-langs__row-header {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 10px 12px;
  cursor: pointer;
  user-select: none;
  transition: background var(--t-fast);
}

.github-langs__row-header:hover {
  background: var(--overlay-hover);
}

.github-langs__row-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  flex-shrink: 0;
}

.github-langs__row-name {
  font-weight: 600;
  font-size: 0.82rem;
  color: var(--text-primary);
  flex: 1;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.github-langs__row-pct {
  font-size: 0.72rem;
  font-weight: 600;
  font-family: var(--font-mono);
  color: var(--text-muted);
  flex-shrink: 0;
}

.github-langs__row-meta {
  font-size: 0.7rem;
  color: var(--text-muted);
  text-align: right;
  white-space: nowrap;
  flex-shrink: 0;
}

.github-langs__row-divider {
  width: 1px;
  height: 12px;
  background: var(--border);
  flex-shrink: 0;
}

.github-langs__row-arrow {
  width: 14px;
  height: 14px;
  color: var(--text-muted);
  transition: transform var(--t-fast);
  flex-shrink: 0;
}

.github-langs__card--open .github-langs__row-arrow {
  transform: rotate(180deg);
}

/* Dropdown body — animated via grid-template-rows */
.github-langs__row-body {
  display: grid;
  grid-template-rows: 0fr;
  transition: grid-template-rows 0.3s var(--ease);
}

.github-langs__card--open .github-langs__row-body {
  grid-template-rows: 1fr;
}

.github-langs__row-body-inner {
  overflow: hidden;
}

.github-langs__row-repos {
  padding: 8px 12px 10px;
  display: flex;
  flex-wrap: wrap;
  gap: 4px;
}

.github-langs__repo-tag {
  display: inline-block;
  padding: 2px 8px;
  border-radius: var(--r-sm);
  font-size: 0.7rem;
  font-weight: 500;
  font-family: var(--font-mono);
  background: var(--overlay-subtle);
  color: var(--text-secondary);
  border: 1px solid var(--border);
  transition: background var(--t-fast), color var(--t-fast);
  position: relative;
  cursor: default;
}

.github-langs__repo-tag:hover {
  background: var(--overlay-hover);
  color: var(--text-primary);
}

/* Floating repo-tag tooltip (appended to body via JS) */
.github-langs__repo-tip {
  position: fixed;
  padding: 5px 10px;
  border-radius: var(--r-sm);
  font-size: 0.65rem;
  font-family: var(--font-sans, sans-serif);
  font-weight: 400;
  white-space: nowrap;
  background: var(--bg-primary);
  color: var(--text-primary);
  border: 1px solid var(--border);
  box-shadow: 0 4px 12px rgba(0,0,0,0.15);
  z-index: 9999;
  pointer-events: none;
  opacity: 0;
  transition: opacity 0.15s;
}

.github-langs__repo-tip--visible {
  opacity: 1;
}

/* Show more / show less button */
.github-langs__expand {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
  width: 100%;
  padding: 8px 20px;
  margin-top: 2px;
  border: 1px solid var(--border);
  border-radius: var(--r-sm);
  background: transparent;
  color: var(--text-muted);
  font-size: 0.78rem;
  font-weight: 600;
  cursor: pointer;
  transition: background var(--t-fast), color var(--t-fast), border-color var(--t-fast);
}

/* Per-column extras wrapper — animated via grid-template-rows */
.github-langs__col-extra {
  display: grid;
  grid-template-rows: 0fr;
  transition: grid-template-rows 0.4s var(--ease);
}

.github-langs__col-extra--open {
  grid-template-rows: 1fr;
}

.github-langs__col-extra-inner {
  overflow: hidden;
  min-height: 0;
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.github-langs__expand:hover {
  background: var(--overlay-hover);
  color: var(--text-primary);
  border-color: var(--border-hover);
}

.github-langs__expand-arrow {
  width: 12px;
  height: 12px;
  transition: transform var(--t-fast);
}

.github-langs__grid--expanded .github-langs__expand-arrow {
  transform: rotate(180deg);
}

/* ---- Responsive ---- */
@media (max-width: 768px) {
  .github-graph__viewport {
    height: 300px;
  }

  .github-repos__grid {
    grid-template-columns: 1fr;
  }

  .github-langs__columns {
    flex-wrap: wrap;
  }

  .github-langs__col {
    flex: 1 1 calc(50% - 3px);
    min-width: calc(50% - 3px);
  }

  .github-langs__columns--mobile .github-langs__col {
    flex: 1 1 100%;
    min-width: 100%;
  }

  .github-graph__date {
    top: 12px;
    right: 16px;
    font-size: 0.82rem;
    padding: 5px 12px;
  }
}

@media (max-width: 480px) {
  .github-langs__col {
    flex: 1 1 100%;
    min-width: 100%;
  }
}