/* nes-apu-inspector.css: styles for R-Z5.5.X-SOUND-VIZ-2026-05-16.
 *
 * Houses the .va-cog-nes-apu-* token namespace used by the SPK-101 wk-6
 * Panel E APU inspector (register hex/bit grid, 4-channel state grid,
 * 4 per-channel oscilloscopes, master oscilloscope, sound-enable +
 * volume + per-channel mute controls). Lives in a separate file (NOT
 * portal.css, NOT nes-debugger.css) per the now-quintuple-vouched
 * scoped-CSS-file pattern (Z5.1-polish-bundle portal-toc.css +
 * six-oh-two-illegal.css + Z5.2.X nes20-extension.css + Z5.4
 * tilemap-palette.css + Z5.5 nes-debugger.css). Round-specific feature
 * CSS ships standalone and is <link>-imported from the markdown surface
 * that uses it. render.py copy_theme() auto-discovers any *.css in
 * courses/_pipeline/theme/.
 *
 * Mobile-first per Z5.1 L1: every interactive surface (Enable sound
 * button, mute buttons, volume slider) is exercised on BOTH Pixel 5
 * (chromium) AND iPhone 13 (WebKit) in the round's mobile spec.
 *
 * Tap-target floors:
 *   - Enable sound + per-channel mute buttons: 44x44 minimum per WCAG.
 *   - Volume slider: full-width on narrow viewports so the thumb is
 *     reachable without precision aim.
 *   - Register table rows: dense data grid; the table itself scrolls
 *     horizontally on narrow viewports rather than wrapping cells.
 *
 * Oscilloscope canvas sizing: 256x48 per channel + 512x64 master at
 * wide. On narrow viewports we let the canvases scale via max-width:
 * 100% so they shrink with the panel without reflowing the channel
 * grid.
 *
 * License: (c) 2026 Virtus Cyber Academy.
 */

/* ============================================================
 * Top-level APU inspector wrapper.
 * Sits inside Panel E (already framed by nes-debugger.css).
 * ============================================================ */
.va-cog-nes-apu-inspector {
  display: block;
  font-family: var(--mono, ui-monospace, monospace);
  font-size: 0.88rem;
  color: var(--fg, #e2e8f0);
}

.va-cog-nes-apu-inspector-head {
  margin: 0 0 0.4rem 0;
  color: var(--gold, #fbbf24);
  font-size: 0.85rem;
  font-weight: 700;
  letter-spacing: 0.04em;
  text-transform: uppercase;
}

.va-cog-nes-apu-inspector-help {
  margin: 0 0 0.7rem 0;
  color: var(--fg-muted, #94a3b8);
  font-size: 0.82rem;
  line-height: 1.45;
}

/* ============================================================
 * Sound controls row: Enable sound + volume + per-channel mute.
 * ============================================================ */
.va-cog-nes-apu-controls {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.7rem;
  margin: 0.5rem 0 0.9rem 0;
  padding: 0.55rem 0.7rem;
  background: rgba(251, 191, 36, 0.06);
  border: 1px solid rgba(251, 191, 36, 0.25);
  border-radius: 4px;
}

.va-cog-nes-apu-enable-sound-button {
  min-width: 130px;
  min-height: 44px;
  padding: 0.5rem 0.9rem;
  background: var(--bg-card, #111);
  color: var(--gold, #fbbf24);
  border: 1px solid var(--gold, #fbbf24);
  border-radius: 4px;
  font-family: inherit;
  font-size: 0.9rem;
  font-weight: 700;
  letter-spacing: 0.03em;
  cursor: pointer;
}

.va-cog-nes-apu-enable-sound-button:hover {
  background: rgba(251, 191, 36, 0.12);
}

.va-cog-nes-apu-enable-sound-button[data-sound-state="on"] {
  background: rgba(74, 222, 128, 0.16);
  color: var(--green, #4ade80);
  border-color: var(--green, #4ade80);
}

.va-cog-nes-apu-enable-sound-button[disabled] {
  opacity: 0.6;
  cursor: progress;
}

.va-cog-nes-apu-volume-wrap {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  min-height: 44px;
}

.va-cog-nes-apu-volume-label {
  font-size: 0.82rem;
  color: var(--fg-muted, #94a3b8);
  letter-spacing: 0.03em;
}

.va-cog-nes-apu-volume-slider {
  width: 140px;
  min-height: 32px;
  accent-color: var(--green, #4ade80);
}

.va-cog-nes-apu-volume-readout {
  min-width: 3.5em;
  text-align: right;
  font-size: 0.85rem;
  color: var(--green, #4ade80);
}

.va-cog-nes-apu-mute-row {
  display: inline-flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 0.4rem;
}

.va-cog-nes-apu-mute-row-label {
  margin-right: 0.2rem;
  font-size: 0.82rem;
  color: var(--fg-muted, #94a3b8);
}

.va-cog-nes-apu-mute-btn {
  min-width: 78px;
  min-height: 44px;
  padding: 0.4rem 0.6rem;
  background: var(--bg-card, #111);
  color: var(--green, #4ade80);
  border: 1px solid var(--green, #4ade80);
  border-radius: 4px;
  font-family: inherit;
  font-size: 0.82rem;
  font-weight: 700;
  cursor: pointer;
}

.va-cog-nes-apu-mute-btn[data-muted="true"] {
  background: rgba(220, 38, 38, 0.18);
  color: #f87171;
  border-color: #f87171;
}

.va-cog-nes-apu-sound-status {
  flex: 1 1 auto;
  min-width: 200px;
  font-size: 0.78rem;
  color: var(--fg-muted, #94a3b8);
  font-style: italic;
}

/* ============================================================
 * 4-channel state grid + per-row oscilloscope.
 * Each row: [label] [stats] [scope].
 * ============================================================ */
.va-cog-nes-apu-channel-grid {
  display: flex;
  flex-direction: column;
  gap: 0.4rem;
  margin: 0 0 0.9rem 0;
}

.va-cog-nes-apu-channel-row {
  display: grid;
  grid-template-columns: minmax(70px, 90px) minmax(0, 1fr) minmax(0, 256px);
  align-items: center;
  gap: 0.6rem;
  padding: 0.4rem 0.5rem;
  background: rgba(74, 222, 128, 0.05);
  border: 1px solid rgba(74, 222, 128, 0.18);
  border-radius: 4px;
}

.va-cog-nes-apu-channel-label {
  font-weight: 700;
  color: var(--gold, #fbbf24);
  font-size: 0.88rem;
}

.va-cog-nes-apu-channel-stats {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.4rem 0.7rem;
  font-size: 0.78rem;
  color: var(--fg, #e2e8f0);
}

.va-cog-nes-apu-channel-stat {
  display: inline-flex;
  align-items: center;
  min-height: 22px;
  white-space: nowrap;
}

.va-cog-nes-apu-channel-stat[data-stat-key="enabled"][data-enabled="true"] {
  color: var(--green, #4ade80);
  font-weight: 700;
}
.va-cog-nes-apu-channel-stat[data-stat-key="enabled"][data-enabled="false"] {
  color: var(--fg-muted, #94a3b8);
}

.va-cog-nes-apu-channel-volbar {
  position: relative;
  display: inline-block;
  width: 60px;
  height: 10px;
  background: rgba(255, 255, 255, 0.08);
  border-radius: 2px;
  overflow: hidden;
  vertical-align: middle;
}

.va-cog-nes-apu-channel-volbar-fill {
  display: block;
  height: 100%;
  background: linear-gradient(to right, #4ade80, #fbbf24);
  width: 0%;
  transition: width 0.08s linear;
}

.va-cog-nes-apu-channel-volnum {
  display: inline-block;
  min-width: 1.5em;
  text-align: right;
  color: var(--green, #4ade80);
}

/* ============================================================
 * Oscilloscope canvas.
 * Per-channel: 256x48 wide / scales down on narrow.
 * Master: 512x64 wide / scales down on narrow.
 * ============================================================ */
.va-cog-nes-apu-scope {
  display: block;
  width: 100%;
  max-width: 256px;
  height: 48px;
  background: #050505;
  border: 1px solid rgba(74, 222, 128, 0.4);
  border-radius: 3px;
  image-rendering: pixelated;
}

.va-cog-nes-apu-scope-master {
  max-width: 100%;
  width: 100%;
  height: 64px;
}

.va-cog-nes-apu-master-block {
  margin: 0 0 0.9rem 0;
  padding: 0.5rem 0.7rem;
  background: rgba(74, 222, 128, 0.04);
  border: 1px dashed rgba(74, 222, 128, 0.35);
  border-radius: 4px;
}

.va-cog-nes-apu-master-head {
  margin: 0 0 0.4rem 0;
  font-size: 0.82rem;
  color: var(--gold, #fbbf24);
  font-weight: 700;
  letter-spacing: 0.04em;
}

/* ============================================================
 * APU register hex + per-bit-breakdown table.
 * ============================================================ */
.va-cog-nes-apu-reg-head {
  margin: 0.4rem 0 0.4rem 0;
  font-size: 0.82rem;
  color: var(--gold, #fbbf24);
  font-weight: 700;
  letter-spacing: 0.04em;
}

.va-cog-nes-apu-reg-table {
  display: block;
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
  border: 1px solid rgba(74, 222, 128, 0.18);
  border-radius: 4px;
  background: rgba(0, 0, 0, 0.2);
}

.va-cog-nes-apu-reg-row {
  display: grid;
  grid-template-columns: 60px 130px 56px 80px minmax(280px, 1fr);
  align-items: center;
  gap: 0.4rem;
  padding: 0.25rem 0.55rem;
  font-size: 0.76rem;
  border-bottom: 1px solid rgba(74, 222, 128, 0.08);
  white-space: nowrap;
}

.va-cog-nes-apu-reg-row:last-child {
  border-bottom: none;
}

.va-cog-nes-apu-reg-addr {
  color: var(--gold, #fbbf24);
  font-weight: 700;
}

.va-cog-nes-apu-reg-name {
  color: var(--fg-muted, #94a3b8);
}

.va-cog-nes-apu-reg-hex {
  color: var(--green, #4ade80);
  font-weight: 700;
  text-align: right;
}

.va-cog-nes-apu-reg-bin {
  color: var(--fg, #e2e8f0);
  letter-spacing: 0.08em;
  font-feature-settings: "tnum";
}

.va-cog-nes-apu-reg-bits {
  color: var(--fg-muted, #94a3b8);
  font-style: italic;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

/* ============================================================
 * Narrow viewport (<=820px): channel row stacks label-stats above the
 * scope canvas so the canvas can take full panel width. Controls row
 * stays a single column.
 * ============================================================ */
@media (max-width: 820px) {
  .va-cog-nes-apu-channel-row {
    grid-template-columns: minmax(0, 1fr);
    gap: 0.3rem;
  }
  .va-cog-nes-apu-scope {
    max-width: 100%;
    height: 56px;
  }
  .va-cog-nes-apu-reg-row {
    grid-template-columns: 56px 110px 52px 78px minmax(220px, 1fr);
    font-size: 0.72rem;
  }
}

/* Phone viewport (<=480px): controls stack vertically; mute buttons
 * shrink width but keep 44px height for tap reachability. */
@media (max-width: 480px) {
  .va-cog-nes-apu-controls {
    flex-direction: column;
    align-items: stretch;
    gap: 0.5rem;
  }
  .va-cog-nes-apu-mute-row {
    flex-wrap: wrap;
  }
  .va-cog-nes-apu-mute-btn {
    min-width: 70px;
    padding: 0.4rem 0.4rem;
  }
  .va-cog-nes-apu-volume-slider {
    width: 100%;
    min-width: 0;
    flex: 1 1 auto;
  }
  .va-cog-nes-apu-volume-wrap {
    width: 100%;
  }
  .va-cog-nes-apu-reg-row {
    grid-template-columns: 48px 100px 48px 76px minmax(180px, 1fr);
    font-size: 0.68rem;
    padding: 0.2rem 0.4rem;
  }
  .va-cog-nes-apu-channel-stats {
    font-size: 0.74rem;
  }
}