/* ============================================================
   PLAYGROUND PAGE — harri.xyz
   ============================================================ */

.playground-hero {
  padding-top: calc(80px + var(--space-16));
  padding-bottom: var(--space-16);
  border-bottom: 1px solid var(--color-border);
}

.playground-hero__title {
  font-size: var(--text-2xl);
  font-family: var(--font-display);
  font-weight: 800;
  line-height: 0.92;
  letter-spacing: -0.03em;
  text-transform: uppercase;
}

.playground-hero__title em {
  font-style: normal;
  color: var(--color-accent);
}

.playground-hero__desc {
  margin-top: var(--space-6);
  font-size: var(--text-base);
  color: var(--color-text-muted);
  max-width: 480px;
}

/* ------------------------------------------------------------
   Experiment Grid
   ------------------------------------------------------------ */
.playground-grid {
  padding-block: var(--space-16);
}

.experiments {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
  gap: var(--space-6);
  margin-top: var(--space-12);
}

/* Experiment card */
.exp-card {
  background-color: var(--color-surface);
  border-radius: 4px;
  overflow: hidden;
  display: flex;
  flex-direction: column;
  transition: background-color var(--duration-fast) var(--ease-out);
}

.exp-card:hover {
  background-color: var(--color-surface-2);
}

.exp-card__thumb {
  aspect-ratio: 16 / 9;
  overflow: hidden;
  position: relative;
  background-color: var(--color-surface-2);
}

.exp-card__thumb img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform var(--duration-slow) var(--ease-out);
}

.exp-card:hover .exp-card__thumb img {
  transform: scale(1.04);
}

.exp-card__thumb--placeholder {
  display: flex;
  align-items: center;
  justify-content: center;
}

.exp-card__thumb--placeholder svg {
  width: 40px;
  height: 40px;
  stroke: var(--color-border);
  fill: none;
  stroke-width: 1;
}

.exp-card__arrow {
  position: absolute;
  top: var(--space-4);
  right: var(--space-4);
  width: 32px;
  height: 32px;
  background-color: rgba(13, 13, 13, 0.7);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  transform: translateY(4px);
  transition: opacity var(--duration-base) var(--ease-out),
              transform var(--duration-base) var(--ease-out);
}

.exp-card:hover .exp-card__arrow {
  opacity: 1;
  transform: translateY(0);
}

.exp-card__arrow svg {
  width: 14px;
  height: 14px;
  stroke: var(--color-text);
  fill: none;
  stroke-width: 1.5;
  stroke-linecap: round;
  stroke-linejoin: round;
}

.exp-card__info {
  padding: var(--space-4) var(--space-5);
  flex: 1;
  display: flex;
  flex-direction: column;
}

.exp-card__meta {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  margin-bottom: var(--space-2);
}

.exp-card__tag {
  font-size: var(--text-xs);
  color: var(--color-accent);
  letter-spacing: 0.06em;
  text-transform: uppercase;
  font-weight: 500;
}

.exp-card__date {
  font-size: var(--text-xs);
  color: var(--color-text-muted);
}

.exp-card__title {
  font-family: var(--font-display);
  font-size: var(--text-base);
  font-weight: 700;
  letter-spacing: -0.01em;
  line-height: 1.2;
  margin-bottom: var(--space-2);
}

.exp-card__desc {
  font-size: var(--text-xs);
  color: var(--color-text-muted);
  line-height: 1.6;
  flex: 1;
}