/* STS Projects — matches the theme's card/section design tokens. */

.project-filter {
  display: flex;
  flex-wrap: wrap;
  gap: 0.6rem;
  margin-bottom: 2rem;
}

.project-filter-btn {
  padding: 0.55rem 1.15rem;
  border-radius: 999px;
  border: 1px solid var(--border);
  background: var(--surface);
  color: var(--muted);
  font-family: inherit;
  font-size: 0.92rem;
  font-weight: 700;
  cursor: pointer;
  transition: background 0.2s ease, color 0.2s ease, border-color 0.2s ease;
}

.project-filter-btn:hover {
  border-color: rgba(0, 139, 209, 0.38);
  color: var(--primary);
}

.project-filter-btn.is-active {
  background: linear-gradient(135deg, var(--primary), var(--accent));
  border-color: transparent;
  color: #fff;
}

.project-grid {
  display: grid;
  /* min() keeps the track from exceeding the container on narrow phones. */
  grid-template-columns: repeat(auto-fill, minmax(min(310px, 100%), 1fr));
  gap: 1.5rem;
}

.project-card {
  display: flex;
  flex-direction: column;
  overflow: hidden;
  border-radius: var(--radius-lg);
  border: 1px solid var(--border);
  background: var(--surface);
  box-shadow: var(--shadow);
  transition: transform 0.2s ease, border-color 0.2s ease;
}

.project-card:hover {
  transform: translateY(-4px);
  border-color: rgba(0, 139, 209, 0.38);
}

.project-card[hidden] {
  display: none;
}

.project-card-media {
  position: relative;
  display: block;
  aspect-ratio: 3 / 2;
  overflow: hidden;
  background: var(--surface-muted);
}

.project-card-media img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
  transition: transform 0.4s ease;
}

.project-card:hover .project-card-media img {
  transform: scale(1.04);
}

.project-card-tag,
.project-card-badge {
  position: absolute;
  top: 0.85rem;
  padding: 0.3rem 0.75rem;
  border-radius: 999px;
  font-size: 0.76rem;
  font-weight: 800;
  letter-spacing: 0.02em;
  backdrop-filter: blur(6px);
}

.project-card-tag {
  left: 0.85rem;
  background: rgba(255, 255, 255, 0.92);
  color: var(--primary-strong);
}

.project-card-badge {
  right: 0.85rem;
  background: rgba(15, 23, 42, 0.72);
  color: #fff;
}

.project-card-body {
  display: flex;
  flex-direction: column;
  flex: 1 1 auto;
  gap: 0.6rem;
  padding: 1.35rem;
}

.project-card-location {
  font-size: 0.82rem;
  font-weight: 700;
  color: var(--primary);
  text-transform: uppercase;
  letter-spacing: 0.04em;
}

.project-card-body h3 {
  margin: 0;
  font-size: 1.12rem;
  line-height: 1.35;
}

.project-card-body h3 a {
  color: var(--text);
  text-decoration: none;
}

.project-card-body h3 a:hover {
  color: var(--primary);
}

.project-card-body p {
  margin: 0;
  color: var(--muted);
  font-size: 0.95rem;
}

.project-chips {
  display: flex;
  flex-wrap: wrap;
  gap: 0.4rem;
  margin: 0.2rem 0 0;
  padding: 0;
  list-style: none;
}

.project-chips li {
  padding: 0.25rem 0.65rem;
  border-radius: 999px;
  background: var(--accent-soft);
  color: var(--primary-strong);
  font-size: 0.78rem;
  font-weight: 700;
}

.project-chips .project-chip-more {
  background: transparent;
  border: 1px dashed var(--border);
  color: var(--muted);
}

.project-card-foot {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 0.75rem;
  margin-top: auto;
  padding-top: 0.9rem;
}

.project-card-count {
  font-size: 0.82rem;
  color: var(--muted);
}

.project-empty-note {
  margin-top: 1.5rem;
  color: var(--muted);
}

/* Single project ------------------------------------------------ */

.project-facts {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(140px, 1fr));
  gap: 1rem;
  margin: 1.5rem 0 0;
  padding-top: 1.25rem;
  border-top: 1px solid var(--border);
}

.project-fact dt {
  font-size: 0.78rem;
  font-weight: 800;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--muted);
}

.project-fact dd {
  margin: 0.25rem 0 0;
  font-size: 0.98rem;
  font-weight: 700;
  color: var(--text);
}

.project-compare {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1.5rem;
}

.project-compare-item {
  position: relative;
  margin: 0;
  border-radius: var(--radius-lg);
  overflow: hidden;
  border: 1px solid var(--border);
  background: var(--surface);
  box-shadow: var(--shadow);
}

.project-compare-item img {
  display: block;
  width: 100%;
  aspect-ratio: 4 / 3;
  object-fit: cover;
}

.project-compare-item figcaption {
  position: absolute;
  top: 0.9rem;
  left: 0.9rem;
}

.project-compare-label {
  display: inline-block;
  padding: 0.35rem 0.9rem;
  border-radius: 999px;
  font-size: 0.8rem;
  font-weight: 800;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  color: #fff;
}

.project-compare-label.is-before {
  background: rgba(15, 23, 42, 0.78);
}

.project-compare-label.is-after {
  background: linear-gradient(135deg, var(--primary-strong), var(--accent));
}

.project-body {
  display: grid;
  grid-template-columns: minmax(0, 1.6fr) minmax(0, 1fr);
  gap: 2rem;
  align-items: start;
}

.project-body-text {
  color: var(--muted);
  font-size: 1.02rem;
  line-height: 1.7;
}

.project-body-text > *:first-child {
  margin-top: 0;
}

.project-body-text h2,
.project-body-text h3 {
  color: var(--text);
}

.project-materials {
  padding: 1.35rem;
  border-radius: var(--radius-lg);
  border: 1px solid var(--border);
  background: var(--surface);
  box-shadow: var(--shadow);
}

@media (max-width: 860px) {
  .project-body {
    grid-template-columns: minmax(0, 1fr);
  }
  .project-compare {
    grid-template-columns: minmax(0, 1fr);
  }
}