/* ============================================================
   projects.css — Horizontal Gallery Page
   Requires: global.css
   ============================================================ */

html, body {
  height: 100%;
  overflow: hidden;
  -webkit-font-smoothing: antialiased;
}

/* Full-height column below fixed nav */
.pg-outer {
  position: fixed;
  top: 70px;          /* matches global.css .nav height */
  left: 0;
  right: 0;
  bottom: 0;
  display: flex;
  align-items: center;  /* vertically center the gallery track */
  overflow: hidden;
}

/* ── Scrollable gallery track ── */
.pg-gallery {
  display: flex;
  flex-direction: row;
  align-items: center;
  gap: 80px;            /* between series groups */

  overflow-x: auto;
  overflow-y: visible;
  padding: 0 60px;
  width: 100%;
  height: 70vh;         /* 60-70 % of viewport */

  scrollbar-width: none;
  cursor: grab;
}
.pg-gallery:active     { cursor: grabbing; }
.pg-gallery::-webkit-scrollbar { display: none; }

/* ── Series group ── */
.pg-group {
  display: inline-flex;
  flex-direction: column;
  align-items: flex-end;
  flex-shrink: 0;
}

.pg-group__label {
  font-family: var(--font-cn);
  font-weight: bold;
  font-size: 17px;
  letter-spacing: 0.02em;
  color: #1c1c1e;
  white-space: nowrap;
  margin-top: 10px;
}

.pg-group__items {
  display: flex;
  flex-direction: row;
  align-items: center;  /* center-aligns items of different heights */
  gap: 12px;
}

/* ── Image items ── */
.pg-item {
  flex-shrink: 0;
  width: 180px;
  height: 240px;
  cursor: pointer;
}

/* Center image in each group is slightly larger */
.pg-item--center {
  width: 220px;
  height: 293px;
}

.pg-item__inner {
  width: 100%;
  height: 100%;
  background: var(--bg-primary);
  overflow: hidden;
  transition: opacity 0.3s ease-out, transform 0.3s ease-out;
}

.pg-item__inner img {
  width: 100%;
  height: 100%;
  object-fit: contain;
  background: var(--bg-primary);
  display: block;
  pointer-events: none;
  user-select: none;
}

/* Hover: dim everything, restore + scale the hovered item.
   .has-hover is toggled by JS only when mouse is over a .pg-item */
.pg-gallery.has-hover .pg-item__inner {
  opacity: 0.6;
}
.pg-gallery.has-hover .pg-item:hover .pg-item__inner {
  opacity: 1;
  transform: scale(1.08);
}

/* ─── Mobile (≤ 768px) ──────────────────────────────────── */
@media (max-width: 768px) {
  .pg-outer {
    top: 56px;
  }

  .pg-gallery {
    padding: 0 20px;
    gap: 48px;
    touch-action: pan-x;
    overscroll-behavior-x: contain;
  }

  .pg-item {
    width: 130px;
    height: 173px;
  }

  .pg-item--center {
    width: 160px;
    height: 213px;
  }

  .pg-group__label {
    font-size: 14px;
  }
}