:root {
  --bg: #090a0e;
  --panel: #12151c;
  --panel-2: #171b24;
  --line: #2b313e;
  --text: #f4f6fb;
  --muted: #9aa3b4;
  --soft: #ffcb66;
  --arcade: #68d7ff;
  --machine: #c68cff;
  --focus: #ffffff;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  min-width: 320px;
  min-height: 100vh;
  color: var(--text);
  background:
    radial-gradient(circle at 12% 0%, rgba(104, 215, 255, 0.08), transparent 34rem),
    radial-gradient(circle at 88% 20%, rgba(198, 140, 255, 0.07), transparent 32rem),
    var(--bg);
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
}

button,
input {
  font: inherit;
}

button:focus-visible,
input:focus-visible {
  outline: 2px solid var(--focus);
  outline-offset: 3px;
}

.lab-shell {
  width: min(1180px, calc(100% - 32px));
  margin: 0 auto;
  padding: 48px 0 64px;
}

.lab-header {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(280px, 390px);
  gap: 48px;
  align-items: end;
  padding-bottom: 28px;
  border-bottom: 1px solid var(--line);
}

.eyebrow {
  margin: 0 0 10px;
  color: var(--arcade);
  font-size: 12px;
  font-weight: 800;
  letter-spacing: 0.18em;
}

h1 {
  margin: 0;
  font-size: clamp(36px, 7vw, 72px);
  line-height: 0.95;
  letter-spacing: -0.055em;
}

.intro {
  max-width: 660px;
  margin: 20px 0 0;
  color: var(--muted);
  font-size: 16px;
  line-height: 1.6;
}

.master-controls {
  display: grid;
  gap: 16px;
  padding: 20px;
  border: 1px solid var(--line);
  border-radius: 16px;
  background: rgba(18, 21, 28, 0.88);
}

.volume-control {
  display: grid;
  grid-template-columns: auto 1fr auto;
  gap: 12px;
  align-items: center;
  color: var(--muted);
  font-size: 13px;
}

.volume-control input {
  width: 100%;
  accent-color: var(--arcade);
}

.volume-control output {
  min-width: 38px;
  color: var(--text);
  font-variant-numeric: tabular-nums;
  text-align: right;
}

.toggle-control {
  display: flex;
  gap: 10px;
  align-items: center;
  color: var(--muted);
  font-size: 13px;
  cursor: pointer;
}

.toggle-control input {
  accent-color: var(--machine);
}

.legend {
  display: flex;
  flex-wrap: wrap;
  gap: 12px 24px;
  padding: 22px 0 8px;
  color: var(--muted);
  font-size: 13px;
}

.legend span {
  display: inline-flex;
  gap: 7px;
  align-items: center;
}

.legend b {
  color: var(--text);
}

.discovery-note {
  margin: 14px 0 24px;
  padding: 20px 22px;
  border: 1px solid color-mix(in srgb, var(--soft), transparent 58%);
  border-radius: 16px;
  background:
    linear-gradient(120deg, color-mix(in srgb, var(--soft), transparent 91%), transparent 62%),
    rgba(18, 21, 28, 0.92);
}

.discovery-note h2 {
  margin: 3px 0 8px;
  font-size: 18px;
  letter-spacing: -0.02em;
}

.discovery-note p:last-child {
  max-width: 880px;
  margin: 0;
  color: var(--muted);
  font-size: 13px;
  line-height: 1.6;
}

.discovery-kicker {
  margin: 0;
  color: var(--soft);
  font-size: 10px;
  font-weight: 900;
  letter-spacing: 0.14em;
}

.swatch {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  box-shadow: 0 0 12px currentColor;
}

.swatch-soft { color: var(--soft); background: var(--soft); }
.swatch-arcade { color: var(--arcade); background: var(--arcade); }
.swatch-machine { color: var(--machine); background: var(--machine); }

.custom-audio-panel {
  margin: 14px 0 24px;
  overflow: hidden;
  border: 1px solid color-mix(in srgb, var(--arcade), transparent 55%);
  border-radius: 18px;
  background: rgba(18, 21, 28, 0.94);
}

.custom-panel-header {
  display: flex;
  gap: 28px;
  align-items: center;
  justify-content: space-between;
  padding: 18px 20px;
  background: linear-gradient(120deg, rgba(104, 215, 255, 0.08), transparent 58%);
}

.custom-slot-disclosure {
  border-top: 1px solid var(--line);
}

.custom-slot-disclosure > summary {
  display: flex;
  align-items: center;
  justify-content: space-between;
  min-height: 48px;
  padding: 0 20px;
  color: #dce5f4;
  background: var(--panel-2);
  font-size: 12px;
  font-weight: 850;
  letter-spacing: 0.035em;
  cursor: pointer;
  list-style: none;
}

.custom-slot-disclosure > summary::-webkit-details-marker {
  display: none;
}

.custom-slot-disclosure > summary::after {
  content: "+";
  margin-left: 14px;
  color: var(--arcade);
  font-size: 18px;
}

.custom-slot-disclosure[open] > summary::after {
  content: "−";
}

.custom-slot-disclosure[open] > summary {
  border-bottom: 1px solid var(--line);
}

.custom-slot-disclosure > summary:focus-visible {
  outline: 2px solid var(--focus);
  outline-offset: -3px;
}

.custom-slot-summary-note {
  margin-left: auto;
  color: var(--muted);
  font-size: 11px;
  font-weight: 600;
}

.custom-panel-header h2 {
  margin: 4px 0 7px;
  font-size: 22px;
  letter-spacing: -0.025em;
}

.custom-panel-header p:last-child,
.custom-panel-note {
  margin: 0;
  color: var(--muted);
  font-size: 13px;
  line-height: 1.55;
}

.custom-panel-kicker {
  margin: 0;
  color: var(--arcade);
  font-size: 10px;
  font-weight: 900;
  letter-spacing: 0.14em;
}

.button.button-play-preset {
  display: grid;
  gap: 2px;
  flex: 0 0 auto;
  min-width: 238px;
  min-height: 62px;
  padding: 10px 18px 9px;
  border: 2px solid #fff27a;
  border-radius: 10px;
  color: #0a0a08;
  background: #ffe600;
  box-shadow:
    0 5px 0 #8e7900,
    0 9px 22px rgba(255, 230, 0, 0.18);
  font-size: 13px;
  font-weight: 950;
  letter-spacing: 0.025em;
  line-height: 1.2;
  text-align: center;
  text-decoration: none;
  text-shadow: 0 1px 0 rgba(255, 255, 255, 0.35);
}

.button.button-play-preset:hover {
  border-color: #fffbd1;
  background: #ffed31;
  box-shadow:
    0 7px 0 #8e7900,
    0 12px 28px rgba(255, 230, 0, 0.26);
  transform: translateY(-2px);
}

.button.button-play-preset:active {
  box-shadow:
    0 2px 0 #8e7900,
    0 5px 12px rgba(255, 230, 0, 0.18);
  transform: translateY(3px);
}

.preset-button-kicker {
  font-size: 8px;
  font-weight: 950;
  letter-spacing: 0.19em;
  opacity: 0.64;
}

.custom-slot-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
}

.custom-slot {
  min-width: 0;
  padding: 20px;
  border-right: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
  background: var(--panel);
}

.custom-slot:nth-child(2n) {
  border-right: 0;
}

.custom-slot:last-child,
.custom-slot:nth-last-child(2):nth-child(odd) {
  border-bottom: 0;
}

.custom-slot.has-custom-file {
  background:
    linear-gradient(135deg, rgba(104, 215, 255, 0.065), transparent 58%),
    var(--panel);
}

.custom-slot-heading {
  display: flex;
  gap: 16px;
  align-items: flex-start;
  justify-content: space-between;
}

.custom-slot-heading h3 {
  margin: 2px 0 0;
  font-size: 16px;
}

.custom-slot-id {
  margin: 0;
  color: #687083;
  font-family: ui-monospace, SFMono-Regular, Consolas, monospace;
  font-size: 10px;
}

.slot-connection {
  flex: 0 0 auto;
  padding: 3px 7px;
  border: 1px solid #424a5b;
  border-radius: 999px;
  color: var(--muted);
  font-size: 9px;
  font-weight: 900;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.slot-connection.is-connected {
  border-color: color-mix(in srgb, var(--arcade), transparent 40%);
  color: var(--arcade);
}

.custom-slot-fallback,
.custom-slot-file-name,
.custom-slot-state {
  margin: 10px 0;
  color: var(--muted);
  font-size: 12px;
  line-height: 1.45;
}

.custom-slot-fallback strong {
  color: var(--text);
  font-weight: 700;
}

.custom-slot-file-name {
  min-height: 18px;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.file-picker {
  display: inline-flex;
  padding: 8px 11px;
  border: 1px dashed #4c566b;
  border-radius: 8px;
  color: #d9deea;
  background: #171c25;
  font-size: 11px;
  font-weight: 800;
  cursor: pointer;
}

.file-picker:hover {
  border-color: var(--arcade);
}

.file-picker input {
  position: absolute;
  width: 1px;
  height: 1px;
  overflow: hidden;
  clip: rect(0 0 0 0);
  clip-path: inset(50%);
  white-space: nowrap;
}

.slot-volume {
  display: grid;
  grid-template-columns: auto 1fr auto;
  gap: 10px;
  align-items: center;
  color: var(--muted);
  font-size: 11px;
}

.slot-volume input {
  min-width: 80px;
  accent-color: var(--arcade);
}

.slot-volume output {
  min-width: 38px;
  color: var(--text);
  font-variant-numeric: tabular-nums;
  text-align: right;
}

.slot-mute {
  display: inline-flex;
  gap: 8px;
  align-items: center;
  margin-top: 12px;
  color: #d9deea;
  font-size: 12px;
  font-weight: 800;
  cursor: pointer;
}

.slot-mute input {
  width: 16px;
  height: 16px;
  margin: 0;
  accent-color: var(--soft);
}

.custom-slot.is-muted {
  background:
    linear-gradient(135deg, rgba(255, 203, 102, 0.075), transparent 58%),
    var(--panel);
}

.custom-slot.is-muted .slot-mute {
  color: var(--soft);
}

.custom-slot-actions {
  display: flex;
  gap: 8px;
  margin-top: 14px;
}

.button-preview {
  color: #071016;
  background: var(--arcade);
}

.button-save {
  border-color: color-mix(in srgb, var(--soft), transparent 42%);
  color: var(--soft);
  background: color-mix(in srgb, var(--soft), transparent 91%);
}

.button-reset {
  border-color: #394153;
  color: var(--muted);
  background: transparent;
}

.button:disabled {
  opacity: 0.42;
  cursor: not-allowed;
  transform: none;
}

.custom-slot-state {
  min-height: 35px;
  margin-bottom: 0;
}

.custom-slot.has-unsaved-change .custom-slot-state {
  color: var(--soft);
}

.recipe-editor {
  margin: 14px 0 24px;
  overflow: hidden;
  border: 1px solid color-mix(in srgb, var(--machine), transparent 45%);
  border-radius: 18px;
  background:
    linear-gradient(135deg, rgba(198, 140, 255, 0.075), transparent 48%),
    var(--panel);
}

.recipe-editor-header {
  display: flex;
  gap: 28px;
  align-items: center;
  justify-content: space-between;
  padding: 22px;
  border-bottom: 1px solid var(--line);
}

.recipe-editor-header h2 {
  margin: 4px 0 7px;
  font-size: 22px;
  letter-spacing: -0.025em;
}

.recipe-editor-header p:last-child {
  max-width: 720px;
  margin: 0;
  color: var(--muted);
  font-size: 13px;
  line-height: 1.55;
}

.recipe-seed-block {
  flex: 0 0 auto;
}

.recipe-seed-label {
  display: block;
  margin-bottom: 7px;
  color: var(--machine);
  font-size: 9px;
  font-weight: 900;
  letter-spacing: 0.14em;
}

.recipe-seed-row {
  display: flex;
  gap: 7px;
}

.recipe-seed-row input,
.recipe-generator-toolbar select {
  min-height: 38px;
  border: 1px solid #465065;
  border-radius: 9px;
  color: var(--text);
  background: #11151d;
}

.recipe-seed-row input {
  width: 118px;
  padding: 7px 9px;
  font-family: ui-monospace, SFMono-Regular, Consolas, monospace;
  font-size: 13px;
  font-variant-numeric: tabular-nums;
  text-align: center;
}

.seed-step {
  min-width: 38px;
  padding-inline: 8px;
  border-color: #465065;
  color: var(--machine);
  background: #191d27;
  font-size: 20px;
  line-height: 1;
}

.recipe-generator-toolbar {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  align-items: end;
  padding: 18px 22px 0;
}

.recipe-generator-toolbar label {
  display: grid;
  gap: 5px;
  color: var(--muted);
  font-size: 10px;
  font-weight: 800;
  letter-spacing: 0.06em;
  text-transform: uppercase;
}

.recipe-generator-toolbar select {
  min-width: 120px;
  padding: 7px 30px 7px 10px;
}

.recipe-parameter-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1px;
  margin: 18px 22px;
  overflow: hidden;
  border: 1px solid var(--line);
  border-radius: 12px;
  background: var(--line);
}

.recipe-parameter {
  display: grid;
  grid-template-columns: minmax(112px, auto) 1fr 54px auto;
  gap: 10px;
  align-items: center;
  min-width: 0;
  padding: 13px;
  background: #141821;
}

.recipe-parameter-name {
  color: #dfe3ed;
  font-size: 12px;
  font-weight: 750;
}

.recipe-parameter input[type="range"] {
  width: 100%;
  min-width: 70px;
  accent-color: var(--machine);
}

.recipe-parameter output {
  color: var(--text);
  font-family: ui-monospace, SFMono-Regular, Consolas, monospace;
  font-size: 11px;
  font-variant-numeric: tabular-nums;
  text-align: right;
}

.recipe-lock {
  display: inline-flex;
  gap: 5px;
  align-items: center;
  color: var(--muted);
  font-size: 10px;
  cursor: pointer;
}

.recipe-lock input {
  accent-color: var(--soft);
}

.recipe-editor-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 9px;
  padding: 0 22px;
}

.recipe-editor-actions .button-play,
.recipe-editor-actions .button-compare {
  flex: 0 1 auto;
}

.recipe-editor-status {
  min-height: 20px;
  margin: 14px 22px 20px;
  color: var(--machine);
  font-size: 12px;
  line-height: 1.5;
}

.sound-groups {
  display: grid;
  gap: 18px;
  margin-top: 0;
}

.sound-group {
  overflow: hidden;
  border: 1px solid var(--line);
  border-radius: 18px;
  background: rgba(18, 21, 28, 0.9);
}

.group-summary {
  display: flex;
  gap: 20px;
  align-items: center;
  justify-content: space-between;
  padding: 18px 20px;
  cursor: pointer;
  list-style: none;
}

.group-summary::-webkit-details-marker {
  display: none;
}

.sound-group[open] .group-summary {
  border-bottom: 1px solid var(--line);
}

.group-summary:hover {
  background: rgba(255, 255, 255, 0.018);
}

.group-summary:focus-visible {
  outline: 2px solid var(--focus);
  outline-offset: -3px;
}

.group-title-wrap {
  display: flex;
  gap: 13px;
  align-items: center;
}

.event-index {
  color: #687083;
  font-size: 11px;
  font-weight: 800;
  letter-spacing: 0.12em;
}

.group-summary h2 {
  margin: 0;
  font-size: 18px;
  letter-spacing: -0.02em;
}

.group-flag {
  padding: 3px 7px;
  border: 1px solid color-mix(in srgb, var(--soft), transparent 42%);
  border-radius: 999px;
  color: var(--soft);
  font-size: 9px;
  font-weight: 900;
  letter-spacing: 0.11em;
  text-transform: uppercase;
}

.accordion-chevron {
  width: 10px;
  height: 10px;
  margin-right: 5px;
  border-right: 2px solid #7d879a;
  border-bottom: 2px solid #7d879a;
  transform: rotate(45deg) translate(-2px, -2px);
  transition: transform 150ms ease;
}

.sound-group[open] .accordion-chevron {
  transform: rotate(225deg) translate(-2px, -2px);
}

.group-toolbar {
  display: flex;
  justify-content: flex-end;
  padding: 12px 20px;
  border-bottom: 1px solid var(--line);
  background: var(--panel-2);
}

.variants {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
}

.sound-card {
  position: relative;
  display: grid;
  min-height: 196px;
  padding: 20px;
  border-right: 1px solid var(--line);
  background: var(--panel);
}

.sound-card.is-shortlisted {
  background:
    linear-gradient(135deg, color-mix(in srgb, var(--accent), transparent 92%), transparent 55%),
    var(--panel);
}

.sound-card:last-child {
  border-right: 0;
}

.sound-card::before {
  position: absolute;
  inset: 0 auto 0 0;
  width: 3px;
  content: "";
  background: var(--accent);
  opacity: 0.8;
}

.style-soft { --accent: var(--soft); }
.style-arcade { --accent: var(--arcade); }
.style-machine { --accent: var(--machine); }

.style-label {
  margin: 0 0 8px;
  color: var(--accent);
  font-size: 11px;
  font-weight: 800;
  letter-spacing: 0.14em;
  text-transform: uppercase;
}

.card-flags {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  margin-bottom: 8px;
}

.card-flag {
  display: inline-flex;
  width: fit-content;
  padding: 3px 6px;
  border: 1px solid color-mix(in srgb, var(--accent), transparent 45%);
  border-radius: 999px;
  color: var(--accent);
  background: color-mix(in srgb, var(--accent), transparent 90%);
  font-size: 9px;
  font-weight: 900;
  letter-spacing: 0.11em;
  text-transform: uppercase;
}

.sound-name {
  margin: 0;
  font-size: 17px;
}

.sound-description {
  margin: 9px 0 18px;
  color: var(--muted);
  font-size: 13px;
  line-height: 1.5;
}

.card-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 9px;
  align-self: end;
}

.button {
  min-height: 38px;
  padding: 8px 13px;
  border: 1px solid transparent;
  border-radius: 9px;
  color: var(--text);
  background: transparent;
  font-size: 12px;
  font-weight: 800;
  letter-spacing: 0.035em;
  cursor: pointer;
  transition: border-color 120ms ease, background 120ms ease, transform 120ms ease;
}

.button:hover {
  transform: translateY(-1px);
}

.button:active {
  transform: translateY(0);
}

.button-play {
  flex: 1 1 105px;
  color: #090a0e;
  background: var(--accent);
}

.button-sequence {
  flex: 1 1 105px;
  border-color: color-mix(in srgb, var(--accent), transparent 45%);
  color: var(--accent);
  background: color-mix(in srgb, var(--accent), transparent 91%);
}

.button-sequence:hover {
  border-color: var(--accent);
  background: color-mix(in srgb, var(--accent), transparent 84%);
}

.button-burst {
  flex: 1.2;
  color: #090a0e;
  background: var(--accent);
}

.button-export,
.button-secondary,
.button-compare {
  border-color: #394153;
  color: #d9deea;
  background: #1b202a;
}

.button-export:hover,
.button-secondary:hover,
.button-compare:hover {
  border-color: #687083;
  background: #222936;
}

.button.is-playing {
  box-shadow: 0 0 0 3px color-mix(in srgb, var(--accent), transparent 72%);
}

.lab-footer {
  display: flex;
  gap: 32px;
  justify-content: space-between;
  margin-top: 26px;
  padding-top: 24px;
  border-top: 1px solid var(--line);
  color: var(--muted);
  font-size: 12px;
  line-height: 1.55;
}

.lab-footer p {
  max-width: 720px;
  margin: 0;
}

#audio-status {
  min-width: 250px;
  color: var(--arcade);
  text-align: right;
}

@media (max-width: 820px) {
  .lab-shell {
    width: min(100% - 20px, 620px);
    padding-top: 28px;
  }

  .lab-header {
    grid-template-columns: 1fr;
    gap: 26px;
  }

  .variants {
    grid-template-columns: 1fr;
  }

  .custom-panel-header {
    align-items: stretch;
    flex-direction: column;
  }

  .recipe-editor-header {
    align-items: stretch;
    flex-direction: column;
  }

  .recipe-seed-block,
  .recipe-seed-row input {
    width: 100%;
  }

  .recipe-seed-row {
    flex-wrap: wrap;
  }

  .recipe-parameter-grid {
    grid-template-columns: 1fr;
  }

  .recipe-parameter {
    grid-template-columns: 1fr 54px auto;
  }

  .recipe-parameter-name {
    grid-column: 1 / -1;
  }

  .button-play-preset {
    width: 100%;
    text-align: center;
  }

  .custom-slot-grid {
    grid-template-columns: 1fr;
  }

  .custom-slot,
  .custom-slot:nth-child(2n),
  .custom-slot:nth-last-child(-n + 2) {
    border-right: 0;
    border-bottom: 1px solid var(--line);
  }

  .custom-slot:last-child {
    border-bottom: 0;
  }

  .sound-card {
    min-height: auto;
    border-right: 0;
    border-bottom: 1px solid var(--line);
  }

  .sound-card:last-child {
    border-bottom: 0;
  }

  .lab-footer {
    flex-direction: column;
    gap: 12px;
  }

  #audio-status {
    min-width: 0;
    text-align: left;
  }
}

@media (prefers-reduced-motion: reduce) {
  .button,
  .accordion-chevron {
    transition: none;
  }
}
/* Audio Lab 25: one event workspace, with persistent listening controls. */
[hidden] { display: none !important; }
.lab-shell { width: min(1440px, calc(100% - 40px)); padding: 0 0 28px; }
.lab-header { position: sticky; top: 0; z-index: 10; grid-template-columns: 1fr auto; gap: 14px 24px; align-items: center; padding: 20px 0 14px; background: var(--bg); }
.eyebrow { font-size: 10px; margin-bottom: 7px; }
h1 { font-size: 32px; letter-spacing: -.04em; }
.intro { margin-top: 8px; font-size: 13px; }
.master-controls { grid-column: 1 / -1; display: flex; flex-wrap: wrap; align-items: center; gap: 16px 28px; padding: 0; border: 0; background: none; }
.volume-control { width: 260px; }
.master-controls .button { margin-left: auto; }
.button.button-play-preset { min-height: 46px; min-width: 220px; display: flex; align-items: center; justify-content: center; box-shadow: 0 3px 0 #8e7900; }
.legend { padding: 16px 0 10px; font-size: 12px; }
.groove-help { color: var(--muted); font-size: 12px; margin: 0 0 18px; }
.groove-help summary { width: fit-content; cursor: pointer; padding: 6px 0; }
.groove-help p { max-width: 850px; line-height: 1.6; }
.lab-workspace { display: grid; grid-template-columns: 260px minmax(0, 1fr); gap: 22px; align-items: start; }
.event-nav { display: grid; gap: 4px; }
.event-button { display: grid; gap: 5px; width: 100%; min-height: 52px; padding: 10px 12px; border: 1px solid transparent; border-radius: 8px; color: var(--text); background: transparent; text-align: left; cursor: pointer; font-size: 12px; font-weight: 650; }
.event-button:hover { background: var(--panel); }
.event-button[aria-current="true"] { border-color: #446477; background: #16232d; }
.event-status { color: var(--muted); font-size: 11px; font-weight: 400; }
.event-button[aria-current="true"] .event-status { color: var(--arcade); }
.sound-group { border-radius: 12px; overflow: visible; }
.group-summary { cursor: default; padding: 20px; }
.group-summary h2 { font-size: 21px; }
.group-title-wrap { flex-wrap: wrap; }
.runtime-summary { margin: 0; padding: 0 20px 18px; color: var(--arcade); font-size: 12px; line-height: 1.6; overflow-wrap: anywhere; }
.group-toolbar { align-items: center; justify-content: space-between; gap: 16px; }
.audition-note { color: var(--muted); font-size: 11px; line-height: 1.65; }
.sound-card { padding: 18px 16px; min-height: 240px; }
.sound-name { font-size: 16px; }
.card-actions { gap: 7px; }
.button-play, .button-sequence { flex-basis: 85px; }
.button-export { position: relative; display: inline-flex; align-items: center; justify-content: center; min-width: 38px; padding: 8px; }
.export-tooltip { display: none; position: absolute; bottom: calc(100% + 8px); right: 0; padding: 8px 10px; border: 1px solid var(--line); border-radius: 6px; background: #202735; color: var(--text); white-space: nowrap; z-index: 5; }
.button-export:hover .export-tooltip, .button-export:focus-visible .export-tooltip { display: block; }
.custom-slot { border: 0; border-top: 1px solid var(--line); border-radius: 0 0 12px 12px; padding: 20px; }
.custom-slot-heading h3 { font-size: 15px; margin-top: 6px; }
.custom-slot-id { color: var(--muted); font-family: inherit; }
.slot-volume { max-width: 480px; font-size: 12px; }
.custom-slot-state { min-height: 18px; }
.file-picker { min-height: 40px; align-items: center; }
.file-picker:focus-within, a:focus-visible, summary:focus-visible { outline: 2px solid var(--focus); outline-offset: 3px; }
.lab-footer { margin-left: 282px; gap: 20px; padding-top: 16px; font-size: 11px; }
@media (max-width: 1100px) {
  .lab-workspace { grid-template-columns: 210px minmax(0, 1fr); gap: 16px; }
  .variants { grid-template-columns: 1fr; }
  .sound-card { min-height: auto; border-right: 0; border-bottom: 1px solid var(--line); }
  .card-actions .button-play, .card-actions .button-sequence { flex: 0 1 145px; }
  .lab-footer { margin-left: 226px; flex-direction: column; }
}
@media (max-width: 700px) {
  .lab-shell { width: calc(100% - 24px); }
  .lab-header { padding: 12px 0; gap: 12px; }
  h1 { font-size: 23px; }
  .intro { display: none; }
  .button.button-play-preset { min-width: 0; width: 155px; font-size: 10px; padding: 8px; }
  .master-controls { gap: 10px; }
  .volume-control { flex: 1; width: auto; }
  .toggle-control { order: 3; width: 100%; font-size: 12px; }
  .legend { gap: 8px; }
  .lab-workspace { grid-template-columns: 1fr; gap: 14px; }
  .event-nav { grid-template-columns: repeat(2, minmax(0, 1fr)); max-height: 185px; overflow-y: auto; border: 1px solid var(--line); border-radius: 10px; padding: 4px; }
  .event-button { font-size: 11px; }
  .group-summary { padding: 16px; }
  .group-summary h2 { font-size: 18px; }
  .custom-slot-heading { flex-wrap: wrap; gap: 10px; }
  .lab-footer { margin-left: 0; }
}

/* Audio Lab 26: explicit audition modes and stable event numbers. */
.nav-number { display: inline-block; width: 26px; color: var(--muted); font-variant-numeric: tabular-nums; }
.event-button .event-status { padding-left: 26px; }
.series-controls { display: grid; gap: 8px; }
.series-mode { display: flex; align-items: center; gap: 10px; font-size: 12px; font-weight: 700; }
.series-mode select { min-height: 36px; padding: 6px 10px; border: 1px solid #465065; border-radius: 7px; background: var(--panel); color: var(--text); font: inherit; }
.series-mode select:focus-visible { outline: 2px solid var(--focus); outline-offset: 3px; }

.event-button > span { display: grid; grid-template-columns: 26px minmax(0, 1fr); }

.mode-button { border: 1px solid var(--line); background: var(--panel); }
.mode-button[aria-pressed="true"] { color: var(--arcade); background: #193444; border-color: var(--arcade); }
.button-select { flex: 1 0 100%; border: 1px solid var(--line); }
.button-select[aria-pressed="true"] { border-color: var(--accent); color: var(--accent); }
.preset-selection { font-size: 13px; color: var(--arcade); }
.custom-slot-actions { flex-wrap: wrap; }
.button-use-custom { border: 1px solid var(--line); }

/* Slot-wide controls and commit actions have their own visual scope. */
.custom-slot { padding: 0; background: transparent; }
.custom-source { display: flex; flex-wrap: wrap; align-items: center; gap: 12px 18px; padding: 20px; border-bottom: 1px solid var(--line); }
.custom-source h3, .slot-settings h3 { margin: 0; font-size: 15px; }
.section-hint { color: var(--muted); font-size: 11px; line-height: 1.5; margin: 5px 0 0; }
.custom-source .custom-slot-file-name { flex-basis: 100%; margin: 0; white-space: normal; overflow-wrap: anywhere; }
.slot-settings { padding: 22px 20px; }
.slot-mode-mount { margin: 18px 0; }
.slot-mix { display: flex; flex-wrap: wrap; align-items: center; gap: 20px 32px; }
.slot-mix .slot-volume { flex: 1 1 300px; }
.slot-mix .slot-mute { margin: 0; }
.preset-audition { display: flex; flex-wrap: wrap; align-items: center; gap: 12px; margin-top: 20px; }
.preset-audition .button { background: #1b2532; border: 1px solid #46556a; color: var(--text); }
.slot-save-bar { padding: 20px; border-top: 1px solid #46556a; background: #1a202b; border-radius: 0 0 12px 12px; }
.slot-save-actions { display: flex; gap: 12px; justify-content: flex-end; margin-top: 16px; }
.slot-save-actions .button { min-height: 46px; padding: 12px 20px; font-size: 13px; }
.slot-save-actions .button-save { background: var(--arcade); color: #071016; border-color: var(--arcade); }
.slot-save-actions .button-reset { border-color: #647085; color: #d9deea; background: transparent; }
.preset-selection { margin: 0; overflow-wrap: anywhere; }
.custom-slot-state { min-height: 18px; margin: 6px 0 0; }
#preset-save-notice { max-width: 300px; font-size: 11px; line-height: 1.4; color: var(--muted); margin: 10px 0 0; }
@media(max-width:700px) { .slot-save-actions { flex-direction: column-reverse; } .play-preset-area { max-width: 155px; } #preset-save-notice { font-size: 10px; } }

/* Audio Lab 29: slot controls sit with the event title. */
.group-summary { align-items: flex-start; gap: 24px; }
.group-summary .group-title-wrap { flex: 1; min-width: 0; }
.group-summary .slot-settings { flex: 0 1 430px; padding: 0; }
.slot-mode-mount { margin: 0 0 14px; display: flex; justify-content: flex-end; }
.melody-switch { display: flex; align-items: center; gap: 9px; color: var(--muted); font-size: 12px; cursor: pointer; }
.mode-toggle { appearance: none; width: 38px; height: 22px; border: 1px solid #617086; border-radius: 20px; background: #293240; margin: 0; cursor: pointer; position: relative; }
.mode-toggle::after { content: ""; position: absolute; width: 14px; height: 14px; top: 3px; left: 3px; border-radius: 50%; background: #d9deea; }
.mode-toggle:checked { background: #215271; border-color: var(--arcade); }
.mode-toggle:checked::after { left: 19px; background: var(--arcade); }
.melody-switch:has(input:checked) span:last-child, .melody-switch:has(input:not(:checked)) span:first-child { color: var(--text); }
.group-summary .slot-mix { gap: 12px; flex-wrap: nowrap; }
.group-summary .slot-volume { flex: 1; min-width: 0; gap: 8px; }
.group-summary .slot-volume input { width: 100%; min-width: 60px; }
.group-summary .slot-mute { font-size: 11px; white-space: nowrap; }
.custom-file-playback { flex-basis: 100%; display: flex; flex-wrap: wrap; gap: 12px; align-items: center; min-width: 0; }
.custom-source .custom-file-playback .custom-slot-file-name { flex-basis: auto; margin: 0; }
.custom-file-playback .preset-audition { margin: 0; gap: 8px; }
@media(max-width:900px) { .group-summary { flex-direction: column; gap: 16px; } .group-summary .slot-settings { flex: auto; width: 100%; } .slot-mode-mount { justify-content: flex-start; } }
@media(max-width:420px) { .group-summary .slot-mix { flex-wrap: wrap; } .group-summary .slot-volume { flex-basis: 100%; } }

/* Piano Master: two octaves, locked until explicitly enabled. */
.piano-master { margin-top: 16px; padding-top: 12px; border-top: 1px solid var(--line); min-width: 0; align-self: end; }
.piano-enable { display: flex; align-items: center; gap: 7px; font-size: 11px; font-weight: 700; cursor: pointer; }
.piano-enable input { accent-color: var(--arcade); }
.piano-body { opacity: .32; transition: opacity .15s; }
.piano-master.is-enabled .piano-body { opacity: 1; }
.piano-keys { position: relative; height: 88px; margin-top: 10px; touch-action: manipulation; user-select: none; }
.piano-key { position: absolute; top: 0; border: 1px solid #667084; border-radius: 0 0 4px 4px; padding: 0 0 7px; display: flex; align-items: end; justify-content: center; font-size: 8px; cursor: pointer; }
.piano-key.is-white { height: 88px; background: #dae0e8; color: #293242; z-index: 1; }
.piano-key.is-black { height: 55px; background: #222938; border-color: #0e121a; z-index: 2; }
.piano-key.is-root { border-bottom: 4px solid var(--arcade); }
.piano-key:enabled:active, .piano-key.is-playing { background: var(--arcade); }
.piano-key:focus-visible { outline: 2px solid #f5cc6d; outline-offset: -3px; z-index: 3; }
.piano-key:disabled { cursor: default; }
.piano-controls { display: flex; gap: 7px; margin-top: 9px; }
.piano-controls button { border: 1px solid #445064; border-radius: 5px; background: #1a202b; color: #dae0e8; min-height: 30px; padding: 4px 8px; font-size: 10px; cursor: pointer; }
.piano-controls .piano-record { width: 32px; color: #ff626c; font-size: 19px; line-height: 1; }
.piano-master.is-recording .piano-record { background: #5e2530; border-color: #ff626c; box-shadow: 0 0 0 2px #ff626c33; }
.piano-controls button:disabled { opacity: .45; cursor: default; }
.piano-status { font-size: 10px; color: var(--muted); line-height: 1.5; margin: 8px 0 0; min-height: 30px; }
.piano-note-list { font-size: 10px; color: var(--arcade); line-height: 1.5; max-height: 44px; overflow-y: auto; overflow-wrap: anywhere; margin: 4px 0 0; }

.piano-note-list { min-height: 30px; }

.piano-apply { width: 100%; margin-top: 8px; font-size: 11px; min-height: 30px; }

.series-controls { display: flex; align-items: center; flex-wrap: wrap; gap: 10px 16px; }
.continue-melody-wrap { display: flex; align-items: center; gap: 6px; font-size: 11px; color: var(--muted); cursor: pointer; }
.continue-melody-wrap[hidden] { display: none; }
.continue-melody { accent-color: var(--arcade); }
.piano-replay { width: 32px; }

.piano-controls .piano-save-series { margin-left: auto; color: var(--arcade); }