/* =========================================================
   PORTFOLIO (Projects page)
   ========================================================= */

/* ─── Page header ─── */

/* Header: logos row centered on top, intro paragraph below. Logos are
   sized so their baked-in wordmarks stay legible without dominating,
   and each carries a plain-text caption underneath. */
.portfolio-head {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--space-lg);
  padding: var(--space-lg) 0 var(--space-xl);
  margin-bottom: var(--space-xl);
  border-bottom: 1px solid var(--border-subtle);
  text-align: center;
}
.portfolio-head-logos {
  display: flex;
  align-items: flex-end;
  justify-content: center;
  gap: 56px;
  flex-wrap: wrap;
}
.portfolio-lab-mark {
  margin: 0;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 12px;
  /* Caption "Data-Driven Modeling Lab" needs room on one line — 240px
     comfortably fits it in italic serif. */
  max-width: 260px;
  /* A soft warm card so the marks don't feel like they're floating on
     bare page — echoes the tile treatment from the earlier /labs/ page
     without going all the way back to a full "read more" card. */
  padding: var(--space-md) var(--space-lg);
  background: rgba(166, 132, 78, 0.05);
  border: 1px solid var(--border-subtle);
  border-radius: 12px;
  min-width: 220px;
}
.portfolio-lab-mark img {
  display: block;
  height: 130px;
  width: auto;
  max-width: 100%;
  opacity: 0.9;
}
.portfolio-lab-mark figcaption {
  /* Italic serif keeps the caption in the same family as the μ-lab
     wordmark's "Music Intelligence Lab" italic, and pairs better with
     the hand-drawn DDM signature than a mono label did. */
  font-family: var(--font-serif);
  font-style: italic;
  font-size: 0.92rem;
  letter-spacing: 0.1px;
  color: var(--text-secondary);
  white-space: nowrap;
}
.portfolio-head-intro {
  font-family: var(--font-serif);
  font-size: var(--font-size-prose);
  line-height: 1.65;
  color: var(--text-secondary);
  max-width: 780px;
  text-align: left;
}
.portfolio-head-intro p         { margin-bottom: var(--space-md); }
.portfolio-head-intro p:last-child { margin-bottom: 0; }
@media (max-width: 640px) {
  .portfolio-head-logos { gap: var(--space-lg); }
  .portfolio-lab-mark img { height: 64px; }
}

/* ─── Theme sections ─── */

.portfolio-themes {
  display: flex;
  flex-direction: column;
  gap: var(--space-xxl, 56px);
}
.portfolio-theme {
  display: flex;
  flex-direction: column;
  gap: var(--space-lg);
}
.portfolio-theme-head {
  padding-bottom: var(--space-sm);
  border-bottom: 1px solid var(--border-subtle);
}
.portfolio-theme-title {
  font-family: var(--font-serif);
  font-size: 1.6rem;
  font-weight: 600;
  color: var(--text-primary);
  margin: 0 0 6px;
}
.portfolio-theme-title::before {
  content: '// ';
  font-family: var(--font-mono);
  color: var(--text-muted);
  font-weight: 400;
  font-size: 0.85em;
}
.portfolio-theme-blurb {
  font-family: var(--font-serif);
  font-size: var(--font-size-sm);
  line-height: 1.55;
  color: var(--text-muted);
  max-width: 720px;
  margin: 0;
}

.portfolio-empty {
  padding: var(--space-lg);
  color: var(--text-muted);
  font-family: var(--font-mono);
  font-size: var(--font-size-sm);
  text-align: center;
  border: 1px dashed var(--border-subtle);
  border-radius: 8px;
}

/* ─── Uniform horizontal cards, one per row ─── */

.portfolio-list {
  list-style: none;
  padding: 0;
  margin: 0;
  display: flex;
  flex-direction: column;
  gap: var(--space-md);
}

.portfolio-card {
  display: grid;
  grid-template-columns: minmax(0, 220px) minmax(0, 1fr);
  gap: 0;
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  border-radius: 10px;
  overflow: hidden;
  transition: border-color 0.15s, transform 0.15s, box-shadow 0.15s;
  scroll-margin-top: 80px;
}
.portfolio-card:hover {
  border-color: var(--border-hover);
  transform: translateY(-2px);
  box-shadow: 0 12px 28px -20px rgba(28, 27, 31, 0.18);
}
.portfolio-card--skeleton {
  display: block;
  padding: var(--space-lg);
  color: var(--text-muted);
  font-family: var(--font-mono);
  font-size: var(--font-size-sm);
  border-style: dashed;
}

/* ─── Card media (image / video / gif / placeholder) ─── */

.portfolio-media {
  width: 100%;
  height: 100%;
  aspect-ratio: 1 / 1;
  background: var(--bg-secondary);
  display: block;
  border-right: 1px solid var(--border-subtle);
  overflow: hidden;
  position: relative;
}
.portfolio-media img,
.portfolio-media video,
.portfolio-media iframe {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
  border: 0;
}
.portfolio-media--empty {
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--text-muted);
  font-family: var(--font-mono);
  font-size: var(--font-size-xs);
  letter-spacing: 0.05em;
}

/* Stack image above body on narrow screens */
@media (max-width: 720px) {
  .portfolio-card { grid-template-columns: 1fr; }
  .portfolio-media {
    aspect-ratio: 16 / 9;
    border-right: none;
    border-bottom: 1px solid var(--border-subtle);
  }
}

/* ─── Card body: title / tags / description / people / links ─── */

.portfolio-card-body {
  padding: var(--space-md) var(--space-lg) var(--space-lg);
  display: flex;
  flex-direction: column;
  gap: var(--space-sm);
  min-width: 0;
}
.portfolio-card-title {
  font-family: var(--font-serif);
  font-size: 1.15rem;
  font-weight: 600;
  color: var(--text-primary);
  line-height: 1.25;
  margin: 0;
}
.portfolio-card-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
}
.portfolio-tag {
  font-family: var(--font-mono);
  font-size: var(--font-size-xs);
  color: var(--text-muted);
  padding: 2px 8px;
  border: 1px solid var(--border-default);
  border-radius: 999px;
}
.portfolio-card-blurb {
  font-family: var(--font-serif);
  font-size: var(--font-size-sm);
  line-height: 1.55;
  color: var(--text-secondary);
  margin: 0;
}
.portfolio-card-desc {
  font-family: var(--font-serif);
  font-size: var(--font-size-base);
  line-height: 1.6;
  color: var(--text-secondary);
  margin: 0;
}
.portfolio-card-people {
  font-family: var(--font-mono);
  font-size: var(--font-size-xs);
  color: var(--text-muted);
  line-height: 1.5;
  margin-top: auto;
  padding-top: var(--space-xs);
}
.portfolio-card-people-label {
  color: var(--text-muted);
  margin-right: 4px;
  font-style: italic;
}

/* ─── Typed link chips ─── */

.portfolio-card-links {
  list-style: none;
  padding: var(--space-xs) 0 0;
  margin: 0;
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}
.portfolio-link {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 4px 10px 4px 8px;
  border: 1px solid var(--border-default);
  border-radius: 999px;
  color: var(--text-secondary);
  font-family: var(--font-mono);
  font-size: var(--font-size-xs);
  line-height: 1.4;
  text-decoration: none;
  transition: color 0.12s, border-color 0.12s, background 0.12s;
}
.portfolio-link:hover {
  color: var(--accent-primary);
  border-color: var(--accent-primary);
  background: rgba(166, 132, 78, 0.05);
}
.portfolio-link svg {
  width: 12px;
  height: 12px;
  flex: 0 0 12px;
  color: var(--text-muted);
}
.portfolio-link:hover svg { color: var(--accent-primary); }
.portfolio-link--paper  svg,
.portfolio-link--github svg,
.portfolio-link--video  svg,
.portfolio-link--demo   svg,
.portfolio-link--essay  svg { color: var(--text-muted); }