/* ========== SKETCHBOOK (about.html) ========== */
.sketchbook {
  position: relative;
  padding: 10px 0 90px;
  border-top: 1px solid var(--line);
}

.sketchbook-head {
  padding: 64px 64px 40px;
  max-width: 720px;
  position: relative;
}

.sketchbook-eyebrow {
  font-size: 11px;
  color: var(--muted);
  margin-bottom: 20px;
}

.sketchbook-title {
  font-size: clamp(26px, 4vw, 42px);
  line-height: 1.05;
  margin-bottom: 18px;
}

.sketchbook-text {
  font-size: 16px;
  line-height: 1.65;
  color: #c9c3d4;
}

.sketchbook-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(150px, 1fr));
  gap: 30px 22px;
  padding: 0 64px;
}

.sketch-card {
  background: var(--paper);
  border: 1px solid var(--ink);
  padding: 8px 8px 28px;
  box-shadow: 5px 5px 0 rgba(0, 0, 0, 0.35);
  transition: transform 0.2s ease, box-shadow 0.2s ease, opacity 0.6s ease;
}

.sketch-card-media {
  overflow: hidden;
  border: 1px solid var(--line);
}

.sketch-card img {
  display: block;
  width: 100%;
  height: 100%;
  aspect-ratio: 1 / 1;
  object-fit: cover;
}

.sketch-num {
  display: block;
  font-size: 9px;
  color: var(--text-dark);
  opacity: 0.55;
  padding-top: 10px;
}

.sketch-card:nth-child(6n+1) { transform: rotate(-2.5deg); }
.sketch-card:nth-child(6n+2) { transform: rotate(1.5deg); }
.sketch-card:nth-child(6n+3) { transform: rotate(-1deg); }
.sketch-card:nth-child(6n+4) { transform: rotate(2.5deg); }
.sketch-card:nth-child(6n+5) { transform: rotate(-1.5deg); }
.sketch-card:nth-child(6n) { transform: rotate(1deg); }

.sketch-card:hover {
  position: relative;
  z-index: 5;
  transform: rotate(0deg) scale(1.06);
  box-shadow: 8px 8px 0 rgba(0, 0, 0, 0.45);
}

@media (max-width: 900px) {
  .sketchbook-head {
    padding-left: 24px;
    padding-right: 24px;
  }
  .sketchbook-grid {
    padding-left: 24px;
    padding-right: 24px;
  }
}

@media (max-width: 640px) {
  .sketchbook-head {
    padding-left: 20px;
    padding-right: 20px;
  }
  .sketchbook-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    padding-left: 20px;
    padding-right: 20px;
    gap: 24px 16px;
  }
}