/* The showcase window grid, shared by the home page and the editor preview. */

.site-subtitle {
  max-width: 62ch;
  margin: 6px auto 30px;
  text-align: center;
  color: var(--text-dim);
  font-size: 14.5px;
}

.grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, var(--cell));
  grid-auto-rows: var(--cell);
  gap: var(--gap);
  justify-content: center;
  grid-auto-flow: row dense;
}

/* spans: 方形 1x1 / 大方形 2x2 / 矩形 1x2 / 长矩形 1x4 / 大矩形 2x4 */
.w1 { grid-column: span 1; }
.w2 { grid-column: span 2; }
.w4 { grid-column: span 4; }
.h1 { grid-row: span 1; }
.h2 { grid-row: span 2; }

/* below 4 columns, wide cells shrink so they can never overflow the grid */
@media (max-width: 700px) {
  .w4 { grid-column: span 2; }
}

/* ------------------------------------------------------------------- cell */

.cell {
  position: relative;
  display: block;
  overflow: hidden;
  border-radius: var(--radius, 14px);
  border-width: var(--bw, 2px);
  border-style: solid;
  border-color: var(--border, var(--accent));
  background: var(--ink-700);
  isolation: isolate;
  transition: transform 0.28s cubic-bezier(0.22, 0.61, 0.36, 1), box-shadow 0.28s;
}

.cell--solid {
  background: var(--solid, var(--accent));
}

.cell--link {
  cursor: pointer;
}

.cell:hover {
  transform: translateY(-3px);
  box-shadow: 0 18px 40px rgba(0, 0, 0, 0.45),
    0 0 0 1px color-mix(in srgb, var(--border, var(--accent)) 55%, transparent);
}

.cell__media {
  position: absolute;
  inset: 0;
}

.cell__media img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.cell[data-fit='contain'] .cell__media img {
  object-fit: contain;
  padding: 10px;
}

/* caption that stays visible while the detail panel is hidden */
.cell__caption {
  position: absolute;
  left: 0;
  right: 0;
  bottom: 0;
  z-index: 1;
  padding: 18px 12px 10px;
  background: linear-gradient(to top, rgba(4, 3, 8, 0.82), transparent);
  color: var(--caption-fg, #fff);
  font-size: 12.5px;
  font-weight: 600;
  letter-spacing: 0.01em;
  text-shadow: 0 1px 6px rgba(0, 0, 0, 0.6);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

/* --------------------------------------------------------- hover detail panel */

.cell__overlay {
  position: absolute;
  inset: 0;
  z-index: 2;
  display: flex;
  flex-direction: column;
  justify-content: center;
  gap: 6px;
  padding: 14px;
  background: var(--ov-bg, #0b0a12f2);
  color: var(--ov-fg, #fff);
  overflow: hidden;
  transition: transform 0.4s cubic-bezier(0.22, 0.61, 0.36, 1);
  will-change: transform;
}

.cell__overlay-title {
  margin: 0;
  font-size: 14px;
  font-weight: 700;
  line-height: 1.35;
}

.cell__overlay-body {
  margin: 0;
  font-size: 12.5px;
  line-height: 1.55;
  opacity: 0.9;
  overflow-y: auto;
  overscroll-behavior: contain;
  white-space: pre-wrap;
  word-break: break-word;
}

.cell--w2 .cell__overlay-title,
.cell--w4 .cell__overlay-title {
  font-size: clamp(14px, 1.15vw, 19px);
}

.cell--w2 .cell__overlay-body,
.cell--w4 .cell__overlay-body {
  font-size: clamp(12.5px, 1vw, 14.5px);
}

/* 1/1 — the panel covers the whole cell and slides in from `direction` */
.cell__overlay[data-ratio='1/1'][data-dir='left'] { transform: translateX(-100%); }
.cell__overlay[data-ratio='1/1'][data-dir='right'] { transform: translateX(100%); }
.cell__overlay[data-ratio='1/1'][data-dir='top'] { transform: translateY(-100%); }
.cell__overlay[data-ratio='1/1'][data-dir='bottom'] { transform: translateY(100%); }

/* the half-width panel is cramped on 1x1 cells, so tighten it up */
.cell__overlay[data-ratio='1/2'] {
  padding: 10px;
  gap: 4px;
}

/* 1/2 — the panel covers half of the cell, anchored to the side it enters from */
.cell__overlay[data-ratio='1/2'][data-dir='left'] { width: 50%; justify-content: flex-start; transform: translateX(-100%); }
.cell__overlay[data-ratio='1/2'][data-dir='right'] { width: 50%; left: auto; right: 0; justify-content: flex-start; transform: translateX(100%); }
.cell__overlay[data-ratio='1/2'][data-dir='top'] { height: 50%; bottom: auto; justify-content: flex-start; transform: translateY(-100%); }
.cell__overlay[data-ratio='1/2'][data-dir='bottom'] { height: 50%; justify-content: flex-start; transform: translateY(100%); }

.cell:hover .cell__overlay,
.cell:focus-visible .cell__overlay,
.cell:focus-within .cell__overlay,
.cell.is-open .cell__overlay {
  transform: translate(0, 0);
}

/* tap support on touch screens */
@media (hover: none) {
  .cell__caption {
    display: none;
  }
}

/* ----------------------------------------------------------------- states */

.grid-state {
  padding: 64px 20px;
  text-align: center;
  color: var(--text-dim);
}

.grid-state__logo {
  width: 64px;
  height: 64px;
  margin: 0 auto 18px;
  opacity: 0.55;
}