/* spk101-wk1-emulators.css: styles for R-Z5.6-SPK101-WK1-EMULATORS-2026-05-16.
 *
 * Houses the .va-cog-spk101-wk1-* token namespace used by the SPK-101
 * week-1 Visual Helpers section: the 3 emulator-as-pipeline scenes plus
 * the in-portal JSNES "try a homebrew ROM" demo. Scoped file per the now
 * sextuple-vouched scoped-CSS pattern (Z5.1-polish-bundle portal-toc.css
 * + Z5.1-polish-bundle six-oh-two-illegal.css + Z5.2.X nes20-extension.css
 * + Z5.4 tilemap-palette.css + Z5.5 nes-debugger.css + Z5.5.Y nes-save-state.css).
 * portal.css is NOT modified.
 *
 * Tap-target floors per WCAG 2.5.5: 44x44 on Play / Pause / Reset and on
 * every virtual D-pad / action button. Canvas scales to viewport width
 * with image-rendering: pixelated preserved.
 *
 * License: (c) 2026 Virtus Cyber Academy.
 */

/* ============================================================
 * Scrollytelling scenes (3 scenes: emulator pipeline / inside the
 * emulator / your laptop is 2000x faster). Same scene marker shape
 * as the wk-6 debugger and the Z3.1 / Z3.2 cognitive tools.
 * ============================================================ */
.va-cog-spk101-wk1-scene {
  margin: 1.2rem 0;
  padding: 0.75rem 1rem;
  border-left: 3px solid var(--border, #333);
  background: rgba(74, 222, 128, 0.02);
  border-radius: 0 4px 4px 0;
  transition: opacity 250ms ease, border-color 250ms ease;
}

.va-cog-spk101-wk1-scene[data-active="true"] {
  border-left-color: var(--gold, #fbbf24);
  background: rgba(251, 191, 36, 0.05);
}

.va-cog-spk101-wk1-scene-tag {
  display: inline-block;
  margin: 0 0 0.4rem 0;
  color: var(--gold, #fbbf24);
  font-size: 0.78rem;
  font-weight: 700;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  font-family: var(--mono, ui-monospace, monospace);
}

.va-cog-spk101-wk1-scene-figure {
  margin: 0.8rem 0 0.4rem 0;
  padding: 0.6rem;
  background: var(--bg-card, #111);
  border: 1px solid var(--border, #333);
  border-radius: 4px;
  overflow-x: auto;
}

.va-cog-spk101-wk1-scene-figure svg {
  display: block;
  margin: 0 auto;
  max-width: 100%;
  height: auto;
}

.va-cog-spk101-wk1-scene-caption {
  margin: 0.6rem 0 0 0;
  color: var(--fg-muted, #94a3b8);
  font-size: 0.85rem;
  line-height: 1.45;
  font-style: italic;
}

/* ============================================================
 * Scene A: pipeline diagram block highlights. Each block (cartridge ->
 * emulator -> NES -> pixels) gets a fade-in when the scene activates.
 * ============================================================ */
.va-cog-spk101-wk1-pipeline-block {
  fill: rgba(74, 222, 128, 0.08);
  stroke: rgba(74, 222, 128, 0.5);
  stroke-width: 1.5;
  transition: fill 250ms ease, stroke 250ms ease;
}

.va-cog-spk101-wk1-scene[data-active="true"] .va-cog-spk101-wk1-pipeline-block {
  fill: rgba(74, 222, 128, 0.15);
  stroke: rgba(74, 222, 128, 0.85);
}

.va-cog-spk101-wk1-pipeline-label {
  fill: var(--fg, #e2e8f0);
  font-family: var(--mono, ui-monospace, monospace);
  font-size: 13px;
  text-anchor: middle;
  dominant-baseline: middle;
}

.va-cog-spk101-wk1-pipeline-arrow {
  fill: none;
  stroke: rgba(251, 191, 36, 0.7);
  stroke-width: 2;
}

/* ============================================================
 * Scene B: 3-row "inside the emulator" panels (CPU / PPU / APU). Each
 * row is a tinted band with a label and a stream of glyphs.
 * ============================================================ */
.va-cog-spk101-wk1-inside-row {
  display: grid;
  grid-template-columns: minmax(60px, 100px) minmax(0, 1fr);
  gap: 0.4rem;
  align-items: center;
  margin: 0.4rem 0;
  padding: 0.4rem 0.5rem;
  background: rgba(74, 222, 128, 0.04);
  border-left: 2px solid rgba(74, 222, 128, 0.4);
  border-radius: 0 4px 4px 0;
  font-family: var(--mono, ui-monospace, monospace);
  font-size: 0.85rem;
}

.va-cog-spk101-wk1-inside-row[data-row="cpu"] {
  border-left-color: rgba(251, 191, 36, 0.6);
}

.va-cog-spk101-wk1-inside-row[data-row="ppu"] {
  border-left-color: rgba(74, 222, 128, 0.6);
}

.va-cog-spk101-wk1-inside-row[data-row="apu"] {
  border-left-color: rgba(96, 165, 250, 0.6);
}

.va-cog-spk101-wk1-inside-row-label {
  color: var(--gold, #fbbf24);
  font-weight: 700;
  font-size: 0.78rem;
  text-transform: uppercase;
  letter-spacing: 0.04em;
}

.va-cog-spk101-wk1-inside-row-stream {
  color: var(--fg-muted, #94a3b8);
  overflow: hidden;
  white-space: nowrap;
  text-overflow: ellipsis;
}

/* ============================================================
 * Scene C: clock-rate side-by-side comparison.
 * ============================================================ */
.va-cog-spk101-wk1-clock-grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(0, 1fr);
  gap: 0.8rem;
  margin: 0.6rem 0;
}

.va-cog-spk101-wk1-clock-cell {
  padding: 0.6rem;
  background: var(--bg-card, #111);
  border: 1px solid var(--border, #333);
  border-radius: 4px;
  text-align: center;
}

.va-cog-spk101-wk1-clock-cell-label {
  display: block;
  margin: 0 0 0.3rem 0;
  color: var(--gold, #fbbf24);
  font-size: 0.78rem;
  font-weight: 700;
  letter-spacing: 0.04em;
  text-transform: uppercase;
}

.va-cog-spk101-wk1-clock-cell-rate {
  display: block;
  margin: 0;
  color: var(--fg, #e2e8f0);
  font-family: var(--mono, ui-monospace, monospace);
  font-size: 1.1rem;
  font-weight: 700;
}

.va-cog-spk101-wk1-clock-cell-note {
  display: block;
  margin: 0.3rem 0 0 0;
  color: var(--fg-muted, #94a3b8);
  font-size: 0.78rem;
}

/* ============================================================
 * In-portal JSNES emulator host. 256x240 canvas scales to viewport.
 * ============================================================ */
.va-cog-spk101-wk1-emulator-host {
  display: block;
  margin: 1.5rem 0 2rem 0;
  padding: 1rem;
  background: var(--bg-card, #111);
  border: 1px solid var(--border, #333);
  border-radius: 6px;
  color: var(--fg, #e2e8f0);
}

.va-cog-spk101-wk1-emulator-screen-wrap {
  display: flex;
  justify-content: center;
  align-items: center;
  margin: 0 0 0.8rem 0;
  padding: 0.4rem;
  background: #000;
  border: 1px solid var(--border, #333);
  border-radius: 4px;
}

.va-cog-spk101-wk1-emulator-screen {
  display: block;
  width: 100%;
  max-width: 512px;
  height: auto;
  aspect-ratio: 256 / 240;
  image-rendering: pixelated;
  image-rendering: crisp-edges;
  background: #000;
}

/* ============================================================
 * Controls row: Play / Pause / Reset. Buttons meet WCAG 44x44 floor.
 * ============================================================ */
.va-cog-spk101-wk1-emulator-controls {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  margin: 0 0 0.6rem 0;
}

.va-cog-spk101-wk1-emulator-btn {
  min-width: 64px;
  min-height: 44px;
  padding: 0.4rem 0.8rem;
  background: var(--bg-card-deep, #0a0a0a);
  color: var(--fg, #e2e8f0);
  border: 1px solid var(--border, #333);
  border-radius: 4px;
  font-family: var(--mono, ui-monospace, monospace);
  font-size: 0.92rem;
  font-weight: 700;
  cursor: pointer;
  touch-action: manipulation;
}

.va-cog-spk101-wk1-emulator-btn:hover:not(:disabled) {
  border-color: var(--gold, #fbbf24);
  color: var(--gold, #fbbf24);
}

.va-cog-spk101-wk1-emulator-btn:disabled {
  opacity: 0.45;
  cursor: not-allowed;
}

.va-cog-spk101-wk1-emulator-btn-play:not(:disabled) {
  border-color: rgba(74, 222, 128, 0.5);
  color: var(--green, #4ade80);
}

.va-cog-spk101-wk1-emulator-status {
  margin: 0 0 0.8rem 0;
  padding: 0.4rem 0.6rem;
  background: var(--bg-card-deep, #0a0a0a);
  border-left: 3px solid var(--border, #333);
  border-radius: 0 4px 4px 0;
  color: var(--fg-muted, #94a3b8);
  font-family: var(--mono, ui-monospace, monospace);
  font-size: 0.82rem;
  line-height: 1.4;
}

.va-cog-spk101-wk1-emulator-status[data-kind="running"] {
  border-left-color: var(--green, #4ade80);
  color: var(--fg, #e2e8f0);
}

.va-cog-spk101-wk1-emulator-status[data-kind="paused"],
.va-cog-spk101-wk1-emulator-status[data-kind="idle"] {
  border-left-color: var(--gold, #fbbf24);
}

.va-cog-spk101-wk1-emulator-status[data-kind="error"] {
  border-left-color: #ef4444;
  color: #fecaca;
}

.va-cog-spk101-wk1-emulator-keyhint {
  margin: 0 0 0.8rem 0;
  color: var(--fg-muted, #94a3b8);
  font-size: 0.82rem;
  line-height: 1.5;
}

.va-cog-spk101-wk1-emulator-keyhint kbd {
  display: inline-block;
  padding: 0.05rem 0.35rem;
  background: var(--bg-card-deep, #0a0a0a);
  border: 1px solid var(--border, #333);
  border-radius: 3px;
  font-family: var(--mono, ui-monospace, monospace);
  font-size: 0.8rem;
  color: var(--fg, #e2e8f0);
}

/* ============================================================
 * Virtual D-pad + action cluster. Hidden by default on
 * pointer-capable devices (mouse); shown on touch + as a fallback
 * for any device whose pointer interaction is coarse.
 * ============================================================ */
.va-cog-spk101-wk1-emulator-pad {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(0, 1fr);
  gap: 1rem;
  margin: 0.6rem 0 0 0;
  padding: 0.6rem;
  background: var(--bg-card-deep, #0a0a0a);
  border: 1px solid var(--border, #333);
  border-radius: 4px;
}

.va-cog-spk101-wk1-emulator-dpad {
  display: grid;
  grid-template-columns: 44px 44px 44px;
  grid-template-rows: 44px 44px 44px;
  gap: 0.25rem;
  justify-content: center;
  align-content: center;
}

.va-cog-spk101-wk1-emulator-dpad .va-cog-spk101-wk1-emulator-vbtn-up {
  grid-column: 2;
  grid-row: 1;
}
.va-cog-spk101-wk1-emulator-dpad .va-cog-spk101-wk1-emulator-vbtn-left {
  grid-column: 1;
  grid-row: 2;
}
.va-cog-spk101-wk1-emulator-dpad .va-cog-spk101-wk1-emulator-vbtn-right {
  grid-column: 3;
  grid-row: 2;
}
.va-cog-spk101-wk1-emulator-dpad .va-cog-spk101-wk1-emulator-vbtn-down {
  grid-column: 2;
  grid-row: 3;
}

.va-cog-spk101-wk1-emulator-actions {
  display: grid;
  grid-template-columns: 56px 56px;
  grid-template-rows: 56px 44px;
  gap: 0.4rem;
  justify-content: center;
  align-content: center;
}

.va-cog-spk101-wk1-emulator-actions .va-cog-spk101-wk1-emulator-vbtn-b {
  grid-column: 1;
  grid-row: 1;
}
.va-cog-spk101-wk1-emulator-actions .va-cog-spk101-wk1-emulator-vbtn-a {
  grid-column: 2;
  grid-row: 1;
}
.va-cog-spk101-wk1-emulator-actions .va-cog-spk101-wk1-emulator-vbtn-select {
  grid-column: 1;
  grid-row: 2;
}
.va-cog-spk101-wk1-emulator-actions .va-cog-spk101-wk1-emulator-vbtn-start {
  grid-column: 2;
  grid-row: 2;
}

.va-cog-spk101-wk1-emulator-vbtn {
  min-width: 44px;
  min-height: 44px;
  padding: 0;
  background: var(--bg-card, #111);
  color: var(--fg, #e2e8f0);
  border: 1px solid var(--border, #444);
  border-radius: 4px;
  font-family: var(--mono, ui-monospace, monospace);
  font-size: 0.95rem;
  font-weight: 700;
  cursor: pointer;
  touch-action: none;
  user-select: none;
}

.va-cog-spk101-wk1-emulator-vbtn-a,
.va-cog-spk101-wk1-emulator-vbtn-b {
  border-color: rgba(74, 222, 128, 0.4);
  color: var(--green, #4ade80);
  border-radius: 50%;
}

.va-cog-spk101-wk1-emulator-vbtn-select,
.va-cog-spk101-wk1-emulator-vbtn-start {
  font-size: 0.7rem;
  letter-spacing: 0.04em;
}

.va-cog-spk101-wk1-emulator-vbtn:active {
  background: var(--bg-card-deep, #0a0a0a);
  border-color: var(--gold, #fbbf24);
  color: var(--gold, #fbbf24);
}

/* Hide the virtual pad on devices that have a precise pointer (mouse +
 * trackpad). Keyboard is the primary input there; the on-screen pad is
 * cruft. Touch-only devices, devices reporting coarse pointer, and any
 * device whose primary input is non-pointer (assistive tech, etc.)
 * keep the virtual pad. */
@media (hover: hover) and (pointer: fine) {
  .va-cog-spk101-wk1-emulator-pad {
    display: none;
  }
}

/* ============================================================
 * Forward-pointer (What's in this ROM file?) + optional URL loader.
 * ============================================================ */
.va-cog-spk101-wk1-emulator-forward,
.va-cog-spk101-wk1-emulator-loader {
  margin: 0.8rem 0 0 0;
  padding: 0.4rem 0.6rem;
  background: var(--bg-card-deep, #0a0a0a);
  border: 1px solid var(--border, #333);
  border-radius: 4px;
}

.va-cog-spk101-wk1-emulator-forward-summary,
.va-cog-spk101-wk1-emulator-loader-summary {
  cursor: pointer;
  color: var(--gold, #fbbf24);
  font-family: var(--mono, ui-monospace, monospace);
  font-size: 0.85rem;
  font-weight: 700;
  padding: 0.3rem 0;
}

.va-cog-spk101-wk1-emulator-forward-body,
.va-cog-spk101-wk1-emulator-loader-body {
  padding: 0.4rem 0 0.2rem 0;
}

.va-cog-spk101-wk1-emulator-forward-body p,
.va-cog-spk101-wk1-emulator-loader-hint {
  margin: 0.3rem 0;
  color: var(--fg-muted, #94a3b8);
  font-size: 0.85rem;
  line-height: 1.5;
}

.va-cog-spk101-wk1-emulator-loader-body {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  gap: 0.4rem;
  align-items: center;
}

.va-cog-spk101-wk1-emulator-loader-hint {
  grid-column: 1 / span 2;
}

.va-cog-spk101-wk1-emulator-loader-input {
  padding: 0.4rem 0.6rem;
  min-height: 44px;
  background: var(--bg-card, #111);
  color: var(--fg, #e2e8f0);
  border: 1px solid var(--border, #333);
  border-radius: 4px;
  font-family: var(--mono, ui-monospace, monospace);
  font-size: 0.85rem;
}

.va-cog-spk101-wk1-emulator-loader-btn {
  min-width: 64px;
  min-height: 44px;
  padding: 0.4rem 0.8rem;
  background: var(--bg-card, #111);
  color: var(--fg, #e2e8f0);
  border: 1px solid var(--border, #333);
  border-radius: 4px;
  font-family: var(--mono, ui-monospace, monospace);
  font-size: 0.88rem;
  font-weight: 700;
  cursor: pointer;
  touch-action: manipulation;
}

/* ============================================================
 * Mobile breakpoint: tighten padding, stack pad cleanly under canvas,
 * keep all WCAG floors. The canvas already scales via aspect-ratio.
 * ============================================================ */
@media (max-width: 480px) {
  .va-cog-spk101-wk1-emulator-host {
    padding: 0.6rem;
  }
  .va-cog-spk101-wk1-emulator-pad {
    grid-template-columns: minmax(0, 1fr);
    gap: 0.6rem;
  }
  .va-cog-spk101-wk1-emulator-loader-body {
    grid-template-columns: minmax(0, 1fr);
  }
  .va-cog-spk101-wk1-emulator-loader-hint {
    grid-column: 1;
  }
}