/* ─── Reset & Base ─────────────────────────────────────── */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

:root {
  --bg:    #e8e8e8;
  --text:  #111111;
  --muted: #111111;
  --font:  'Noto Sans Mono', monospace;
  --gap:   25px;
  --pad:   40px;
  --cols:  4;
}

html { scroll-behavior: smooth; scrollbar-gutter: stable; }

body {
  background: var(--bg);
  color: var(--text);
  font-family: var(--font);
  font-size: 13px;
  font-weight: 400;
  line-height: 1.4;
  height: 100vh;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  overflow: hidden;
  padding-bottom: 25px;
}

a { color: inherit; text-decoration: none; }
a:hover { text-decoration: underline; }
button { font-family: var(--font); cursor: pointer; background: none; border: none; padding: 0; }

/* ─── Centred container ─────────────────────────────────── */
.wrap {
  width: 100%;
  padding: 0 var(--pad);
}

/* ─── Header ────────────────────────────────────────────── */
header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: var(--bg);
  border-bottom: none;
  padding: 40px 0 0;
  margin-bottom: 15px;
}

.header-top {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 1px;
  margin-bottom: 32px;
}

h1 {
  font-size: clamp(22px, 3.5vw, 42px);
  font-weight: 500;
  letter-spacing: -0.01em;
  line-height: 1;
  white-space: nowrap;
}
h1 a:hover { text-decoration: none; }

.header-links {
  display: flex;
  gap: 24px;
  font-size: 13px;
  font-weight: 400;
  color: var(--text);
  flex-shrink: 0;
  align-self: flex-end;
  padding-bottom: 3px;
}
.header-links a:hover { text-decoration: underline; }

/* ─── Controls row ──────────────────────────────────────── */
.header-controls {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  padding-bottom: 0px;
  overflow-x: auto;
  scrollbar-width: none;
}
.header-controls::-webkit-scrollbar { display: none; }

/* ─── Animation toggle ─────────────────────────────── */
.anim-control {
  display: flex;
  align-items: center;
  gap: 8px;
  flex-shrink: 0;
  align-self: flex-end;
  padding-bottom: 5px;
}
.anim-label {
  font-size: 13px;
  font-weight: 400;
  color: var(--text);
  opacity: 0.35;
  white-space: nowrap;
}
.anim-pill {
  font-size: 11px;
  font-weight: 500;
  font-family: var(--font);
  color: var(--text);
  border: 1px solid var(--text);
  border-radius: 20px;
  width: 36px;
  height: 20px;
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0.35;
  transition: opacity 0.12s, background 0.12s, color 0.12s;
  flex-shrink: 0;
}
.anim-pill:hover { opacity: 0.7; }
.anim-pill.off {
  opacity: 1;
  background: var(--text);
  color: var(--bg);
}

/* ─── Tabs ──────────────────────────────────────────────── */
.tabs {
  display: grid;
  grid-auto-flow: column;
  grid-auto-columns: 1fr;
  align-items: flex-end;
  white-space: nowrap;
  gap: 0;
  position: relative;
  padding: 0;
}

/* Baseline that spans the full width of the tabs row */
.tabs::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  height: 1px;
  background: var(--text);
  z-index: 0;
}

.tabs .tab {
  font-size: 13px;
  font-weight: 400;
  color: var(--text);
  padding: 6px 18px 4px;
  text-align: center;
  letter-spacing: 0;
  position: relative;
  background: none;
  border: 1px solid transparent;
  border-bottom: none;
  border-radius: 8px 8px 0 0;
  margin-bottom: -1px;
  transition: opacity 0.12s;
  opacity: 0.35;
}

.tabs .tab:hover  { opacity: 1; }
.tabs .tab.active {
  opacity: 1;
  z-index: 1;
  border-color: var(--text);
  background: var(--bg);
}

/* Left inverse curve — smooth arc via radial-gradient */
.tabs .tab.active::before {
  content: '';
  position: absolute;
  left: -8px;
  bottom: 0;
  width: 8px;
  height: 9px;
  background: radial-gradient(circle at 0 0, transparent 7px, var(--text) 7px, var(--text) 8px, var(--bg) 8px);
  z-index: 2;
}

/* Right inverse curve — smooth arc via radial-gradient */
.tabs .tab.active::after {
  content: '';
  position: absolute;
  right: -8px;
  bottom: 0;
  width: 8px;
  height: 9px;
  background: radial-gradient(circle at 100% 0, transparent 7px, var(--text) 7px, var(--text) 8px, var(--bg) 8px);
  z-index: 2;
}

.tabs .sep { display: none; }


/* ─── Main — parametric grid fills remaining viewport ──── */
main {
  flex: 1;
  min-height: 0;
  display: flex;
  flex-direction: column;
  align-items: stretch;
  justify-content: center;
  background: var(--bg);
  overflow: hidden;
  position: relative;
}


.pgrid-wrap {
  width: 100%;
  padding: 0 var(--pad);
  height: 100%;
  min-height: 70vh;
  display: flex;
  align-items: center;
  justify-content: flex-start;
  position: relative;
}

.pgrid-container {
  position: relative;
}

.pgrid-half {
  position: absolute;
  overflow: hidden;
}

/* ─── Parametric Grid Cells ─────────────────────────────── */
.pgrid-cell {
  position: absolute;
  overflow: hidden;
  border-radius: 6px;
  border: 1px solid #555;
  cursor: pointer;
  display: block;
  text-decoration: none;
}

.pgrid-cell video,
.pgrid-cell > img {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: cover;
}

/* ─── Slideshow cells ───────────────────────────────────── */
.pgrid-slides {
  position: absolute;
  top: 0; left: 0; right: 0; bottom: 0;
  display: grid;
  overflow: hidden;
}

/* All slides share the same grid cell so they stack */
.pgrid-slide {
  grid-area: 1 / 1;
  width: 100%;
  height: 100%;
  object-fit: cover;
  opacity: 0;
  transition: opacity 0.6s ease;
  display: block;
}

.pgrid-slide.active {
  opacity: 1;
}

/* Info footer — title + description, bottom-anchored */
.cell-footer {
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  background: linear-gradient(transparent, rgba(0,0,0,0.68));
  padding-top: 22px;
  pointer-events: none;
  opacity: 0;
  transition: opacity 0.25s ease;
}

.pgrid-cell:hover .cell-footer,
.pgrid-cell.selected .cell-footer {
  opacity: 1;
}

.cell-title {
  display: block;
  padding: 5px 8px 3px;
  font-size: 11px;
  font-weight: 500;
  color: #fff;
  line-height: 1.3;
}

.cell-desc-wrap {
  overflow: hidden;
  max-height: 0;
  transition: max-height 0.38s cubic-bezier(0.4, 0, 0.2, 1);
}

.cell-desc {
  padding: 1px 8px 6px;
  font-size: 10px;
  color: rgba(255,255,255,0.78);
  line-height: 1.45;
}

.pgrid-cell.selected .cell-desc-wrap {
  max-height: 5em;
}

/* ─── No Results ────────────────────────────────────────── */
.no-results {
  text-align: center;
  color: var(--text);
  opacity: 0.35;
  font-size: 13px;
  padding: 60px 0;
}


/* ─── Dev Controls Overlay ──────────────────────────────── */
#pgridControls {
  position: fixed;
  bottom: 16px;
  left: 16px;
  color: #aaa;
  font: 12px/1.6 monospace;
  background: rgba(0,0,0,0.8);
  padding: 10px 14px;
  border-radius: 8px;
  z-index: 1000;
  max-height: 80vh;
  overflow-y: auto;
}
#pgridControls strong { color: #ccc; }
#pgridControls label { display: block; margin: 3px 0; }
#pgridControls input[type=range] { width: 120px; vertical-align: middle; }
#pgridControls input[type=color] { width: 28px; height: 18px; border: none; padding: 0; vertical-align: middle; cursor: pointer; background: none; }

/* ─── Responsive ────────────────────────────────────────── */
@media (max-width: 1100px) { :root { --cols: 2; } }
@media (max-width: 700px)  { :root { --cols: 2; --pad: 20px; } }
@media (max-width: 480px)  {
  :root { --cols: 1; --pad: 16px; }
  .header-top { flex-wrap: wrap; }
  .header-links { gap: 14px; }
}