/* Scene 10 -- "What the filters look like."

   Layout:
     hero
     section: 16 RGB tiles for enc1_conv1 (4 columns x 4 rows)
     section: deeper-layer picker + filter slider + 4 stacked stencil rows
     section: tconv (up1, up2) blocks side-by-side, 6 stencils each
     section: 5 head bar charts (one per class)
     caption + step controls

   Sections fade in as their step is reached. */

.s10-root .s10-wrap {
  display: flex;
  flex-direction: column;
  gap: 14px;
}

.s10-hero h1 { font-size: 28px; }
.s10-hero .lede em { font-style: italic; color: var(--ink); }

/* ---------------------------------------------------------------------------
   Section frame (shared)
   --------------------------------------------------------------------------- */

.s10-section {
  background: var(--card-bg);
  border: 1px solid var(--rule);
  border-radius: 4px;
  padding: 12px 14px 14px;
  display: flex;
  flex-direction: column;
  gap: 8px;
  opacity: 0.42;
  transition: opacity 240ms ease-out, border-color 240ms ease-out;
}
.s10-section.s10-revealed {
  opacity: 1;
  border-color: var(--ink-secondary);
}

.s10-sec-head {
  display: flex;
  align-items: baseline;
  gap: 10px;
  font-size: 11px;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  color: var(--ink-secondary);
  padding-bottom: 2px;
  border-bottom: 1px solid var(--rule);
}
.s10-sec-name {
  font-family: "SF Mono", Menlo, monospace;
  font-size: 11px;
  font-weight: 600;
  color: var(--ink);
}
.s10-sec-sub {
  font-style: italic;
  text-transform: none;
  letter-spacing: 0;
  font-size: 11px;
}

.s10-sec-caption {
  margin: 4px 2px 0;
  font-family: "Iowan Old Style", Palatino, Georgia, serif;
  font-size: 13.5px;
  line-height: 1.45;
  color: var(--ink-secondary);
  max-width: 880px;
}
.s10-sec-caption em {
  color: var(--ink);
  font-style: italic;
}
.s10-sec-caption code {
  font-family: "SF Mono", Menlo, monospace;
  font-size: 12px;
  background: var(--bg);
  padding: 0 4px;
  border-radius: 2px;
  color: var(--ink);
}

/* ---------------------------------------------------------------------------
   Section 1: 16 RGB enc1_conv1 tiles
   --------------------------------------------------------------------------- */

.s10-rgb-grid {
  display: grid;
  grid-template-columns: repeat(8, auto);
  gap: 10px 14px;
  justify-content: start;
  padding: 6px 2px 2px;
}

.s10-rgb-tile {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 3px;
}
.s10-rgb-host {
  border: 1px solid var(--rule);
  border-radius: 3px;
  background: var(--bg);
  display: block;
}
.s10-rgb-host canvas {
  display: block;
  image-rendering: pixelated;
}
.s10-rgb-label {
  font-family: "SF Mono", Menlo, monospace;
  font-size: 10px;
  color: var(--ink-secondary);
}

/* ---------------------------------------------------------------------------
   Anatomy callout (sits under the hero, before section 1).
   Explains that each "encoder block" is two conv layers internally — which
   the U-Net architecture diagrams elsewhere don't show.
   --------------------------------------------------------------------------- */

.s10-anatomy {
  background: var(--bg);
  border: 1px solid var(--rule);
  border-left: 3px solid var(--accent, #d97a1f);
  border-radius: 4px;
  padding: 14px 18px;
}
.s10-anatomy-eyebrow {
  font-size: 11px;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  font-family: "SF Mono", Menlo, monospace;
  color: var(--accent, #d97a1f);
  margin-bottom: 8px;
}
.s10-anatomy-text {
  margin: 0;
  font-size: 13px;
  line-height: 1.55;
  color: var(--ink);
}
.s10-anatomy-text code {
  font-family: "SF Mono", Menlo, monospace;
  font-size: 0.92em;
  background: var(--card-bg);
  border: 1px solid var(--rule);
  border-radius: 3px;
  padding: 1px 5px;
}

/* ---------------------------------------------------------------------------
   Section 2: deeper-layer picker + stencil rows + mini-map sidebar
   --------------------------------------------------------------------------- */

.s10-picker-wrap {
  display: flex;
  gap: 22px;
  align-items: flex-start;
  flex-wrap: wrap;
}
.s10-picker-mini {
  flex: 0 0 auto;
}

.s10-picker {
  flex: 1 1 360px;
  display: flex;
  align-items: center;
  gap: 10px;
  flex-wrap: wrap;
  padding: 4px 0;
}
.s10-picker-label {
  font-size: 11px;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  color: var(--ink-secondary);
}
.s10-picker-row {
  display: flex;
  gap: 6px;
  flex-wrap: wrap;
}
.s10-picker-btn {
  font-family: "SF Mono", Menlo, monospace;
  font-size: 11px;
  background: var(--bg);
  color: var(--ink);
  border: 1px solid var(--rule);
  border-radius: 3px;
  padding: 4px 8px;
  cursor: pointer;
  transition: border-color 120ms ease-out, color 120ms ease-out;
}
.s10-picker-btn:hover { border-color: var(--ink-secondary); }
.s10-picker-btn.active {
  border-color: var(--cnn-pos);
  color: var(--cnn-pos);
  box-shadow: inset 0 0 0 1px var(--cnn-pos);
}

.s10-filter-slider {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 2px 0 6px;
  font-size: 12px;
  color: var(--ink-secondary);
}
.s10-filter-slider label {
  font-size: 11px;
  letter-spacing: 0.04em;
  text-transform: uppercase;
}
.s10-filter-slider input[type="range"] {
  flex: 0 1 240px;
}
.s10-filter-out {
  font-family: "SF Mono", Menlo, monospace;
  font-size: 12px;
  color: var(--ink);
  min-width: 2.5em;
}
.s10-filter-help {
  font-style: italic;
  font-size: 11px;
  margin-left: auto;
}

/* Horizontally scrolling strip — all N input-channel stencils. */
.s10-deep-scroll {
  overflow-x: auto;
  overflow-y: hidden;
  padding: 6px 2px 10px;
  -webkit-overflow-scrolling: touch;
  border-top: 1px solid var(--rule);
  border-bottom: 1px solid var(--rule);
  background: var(--bg);
}
.s10-deep-grid {
  display: flex;
  flex-direction: row;
  gap: 10px;
  padding: 4px 4px;
  width: max-content;          /* let it overflow horizontally */
}
.s10-deep-col {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 4px;
}
.s10-deep-in-label {
  font-family: "SF Mono", Menlo, monospace;
  font-size: 10px;
  color: var(--ink-secondary);
}
.s10-deep-tile {
  border: 1px solid var(--rule);
  border-radius: 3px;
  background: var(--card-bg);
  display: block;
}
.s10-deep-tile canvas {
  display: block;
  image-rendering: pixelated;
}

/* Mini-map for the output-head section (sec4). Right-aligned so it sits
   neatly to the side of the per-class bar charts. */
.s10-head-mini {
  align-self: flex-start;
  margin-bottom: 8px;
}

/* ---------------------------------------------------------------------------
   Section 3: transposed conv blocks
   --------------------------------------------------------------------------- */

.s10-tconv-wrap {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
  padding: 4px 0 2px;
}
.s10-tconv-block {
  display: flex;
  flex-direction: column;
  gap: 6px;
  background: var(--bg);
  border: 1px solid var(--rule);
  border-radius: 3px;
  padding: 8px 10px 10px;
}
.s10-tconv-block-name {
  font-family: "SF Mono", Menlo, monospace;
  font-size: 11px;
  color: var(--ink);
}
.s10-tconv-row {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
}
.s10-tconv-cell {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 2px;
}
.s10-tconv-host {
  border: 1px solid var(--rule);
  border-radius: 3px;
  background: var(--bg);
  display: block;
}
.s10-tconv-host canvas {
  display: block;
  image-rendering: pixelated;
}
.s10-tconv-label {
  font-family: "SF Mono", Menlo, monospace;
  font-size: 10px;
  color: var(--ink-secondary);
}

/* ---------------------------------------------------------------------------
   Section 4: 1x1 head bar charts
   --------------------------------------------------------------------------- */

.s10-head-row {
  display: flex;
  gap: 10px;
  flex-wrap: wrap;
  padding: 4px 0 2px;
}
.s10-head-card {
  display: flex;
  flex-direction: column;
  gap: 4px;
  padding: 6px 8px 8px;
  background: var(--bg);
  border: 1px solid var(--rule);
  border-radius: 3px;
}
.s10-head-card-head {
  display: flex;
  align-items: center;
  gap: 6px;
  font-size: 11px;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  color: var(--ink);
}
.s10-head-swatch {
  width: 10px; height: 10px;
  border-radius: 2px;
  border: 1px solid var(--rule);
  display: inline-block;
}
.s10-head-name {
  font-family: "SF Mono", Menlo, monospace;
  font-weight: 600;
  font-size: 11px;
}
.s10-head-host {
  border: 1px solid var(--rule);
  border-radius: 3px;
  background: var(--bg);
  display: block;
}
.s10-head-host canvas {
  display: block;
  image-rendering: pixelated;
}
.s10-head-axis {
  font-family: "SF Mono", Menlo, monospace;
  font-size: 9.5px;
  color: var(--ink-secondary);
  text-align: center;
  letter-spacing: 0;
}

/* ---------------------------------------------------------------------------
   Caption / controls
   --------------------------------------------------------------------------- */

.s10-caption {
  margin: 4px 4px 0;
  text-align: center;
  font-size: 14.5px;
  min-height: 1.4em;
}
.s10-controls { margin-top: 6px; }

/* ---------------------------------------------------------------------------
   Responsive: collapse the tconv side-by-side and the rgb grid columns.
   --------------------------------------------------------------------------- */

@media (max-width: 1024px) {
  .s10-rgb-grid {
    grid-template-columns: repeat(4, auto);
  }
  .s10-tconv-wrap {
    grid-template-columns: 1fr;
  }
}