:root {
  color-scheme: dark;
  --bg: #0d1012;
  --panel: #151a1d;
  --panel-2: #101517;
  --line: #2b3335;
  --text: #edf3f1;
  --muted: #9faaa7;
  --accent: #f2a23a;
  --accent-2: #ff7a45;
  --danger: #ff6b6b;
  --source: #7eb6ff;
  --shadow: 0 24px 70px rgba(0, 0, 0, 0.28);
  font-family:
    Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont,
    "Segoe UI", sans-serif;
}

* {
  box-sizing: border-box;
}

html,
body {
  min-height: 100%;
}

body {
  margin: 0;
  background:
    linear-gradient(180deg, rgba(242, 162, 58, 0.08), transparent 320px),
    var(--bg);
  color: var(--text);
}

button,
input,
select {
  font: inherit;
}

button {
  min-height: 42px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: #20282b;
  color: var(--text);
  cursor: pointer;
  min-width: 0;
  padding: 0 12px;
  line-height: 1.15;
  transition:
    transform 140ms ease,
    border-color 140ms ease,
    background 140ms ease;
}

button:hover:not(:disabled) {
  transform: translateY(-1px);
  border-color: #526064;
  background: #263034;
}

button:disabled {
  color: #62706d;
  cursor: not-allowed;
}

button.primary {
  border-color: rgba(242, 162, 58, 0.54);
  background: linear-gradient(180deg, #6d431b, #442b17);
}

select,
input[type="number"] {
  width: 100%;
  min-width: 0;
  height: 38px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: #0e1315;
  color: var(--text);
  padding: 0 10px;
}

input[type="range"] {
  width: 100%;
  accent-color: var(--accent);
}

.app-shell {
  min-height: 100vh;
  padding: 22px;
}

.topbar {
  display: flex;
  align-items: end;
  justify-content: space-between;
  gap: 20px;
  margin: 0 auto 18px;
  max-width: 1560px;
}

.topbar > div:first-child {
  min-width: 0;
}

.eyebrow {
  margin: 0 0 2px;
  color: var(--accent);
  font-size: 0.76rem;
  font-weight: 700;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

h1,
h2 {
  margin: 0;
  letter-spacing: 0;
}

h1 {
  font-size: clamp(2rem, 3.4vw, 4rem);
  line-height: 0.95;
}

.title-hover {
  position: relative;
  display: inline-block;
}

.title-row {
  display: flex;
  align-items: end;
  gap: 12px;
}

.title-hover h1 {
  outline: none;
}

.info-button {
  display: grid;
  place-items: center;
  width: 34px;
  min-width: 34px;
  height: 34px;
  min-height: 34px;
  margin-bottom: 3px;
  border-color: rgba(242, 162, 58, 0.5);
  border-radius: 50%;
  padding: 0;
  background: #111719;
  color: var(--accent);
  font-family: Georgia, serif;
  font-size: 1.1rem;
  font-weight: 800;
  line-height: 1;
}

.info-button[aria-expanded="true"] {
  border-color: var(--accent);
  background: #201b12;
}

.info-button:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 3px;
}

.feature-card {
  position: absolute;
  top: calc(100% + 12px);
  left: 0;
  z-index: 6;
  width: min(620px, 88vw);
  margin: 0;
  border: 1px solid rgba(242, 162, 58, 0.38);
  border-radius: 8px;
  padding: 14px 18px 14px 32px;
  background: #111719;
  box-shadow: 0 22px 54px rgba(0, 0, 0, 0.42);
  color: var(--text);
  font-size: 0.86rem;
  line-height: 1.38;
  opacity: 0;
  pointer-events: none;
  transform: translateY(5px);
  transition:
    opacity 140ms ease,
    transform 140ms ease;
}

.feature-card li + li {
  margin-top: 6px;
}

.feature-card.is-open {
  opacity: 1;
  pointer-events: auto;
  transform: translateY(0);
}

h2 {
  font-size: 0.92rem;
  font-weight: 720;
}

.status-wrap {
  display: grid;
  min-width: min(340px, 40vw);
  gap: 8px;
}

.status-pill {
  justify-self: end;
  max-width: 100%;
  border: 1px solid rgba(242, 162, 58, 0.34);
  border-radius: 999px;
  padding: 7px 12px;
  color: var(--accent);
  background: rgba(10, 20, 17, 0.9);
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.progress-track {
  height: 7px;
  overflow: hidden;
  border-radius: 999px;
  background: #20282b;
}

.progress-track span {
  display: block;
  width: 0%;
  height: 100%;
  background: linear-gradient(90deg, var(--accent), var(--accent-2));
  transition: width 180ms ease;
}

.workspace {
  display: grid;
  grid-template-columns: minmax(280px, 360px) minmax(0, 1fr);
  gap: 18px;
  max-width: 1560px;
  margin: 0 auto;
}

.side-panel,
.main-panel {
  display: grid;
  gap: 18px;
  align-content: start;
}

.panel,
.visual-panel {
  border: 1px solid var(--line);
  border-radius: 8px;
  background: rgba(21, 26, 29, 0.96);
  box-shadow: var(--shadow);
}

.panel {
  padding: 16px;
}

.panel-heading {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  flex-wrap: wrap;
  min-height: 28px;
  margin-bottom: 14px;
}

.drop-zone {
  position: relative;
  display: grid;
  grid-template-columns: 48px minmax(0, 1fr);
  grid-template-rows: auto auto;
  gap: 4px 12px;
  align-items: center;
  min-height: 86px;
  margin-top: 12px;
  padding: 14px;
  border: 1px dashed #485356;
  border-radius: 8px;
  background: var(--panel-2);
  cursor: pointer;
  transition:
    border-color 140ms ease,
    background 140ms ease;
}

.drop-zone.drag-over {
  border-color: var(--accent);
  background: #12221b;
}

.drop-zone input {
  position: absolute;
  inset: 0;
  opacity: 0;
  cursor: pointer;
}

.drop-icon {
  grid-row: 1 / 3;
  width: 44px;
  height: 44px;
  border: 1px solid rgba(242, 162, 58, 0.58);
  border-radius: 50%;
  background:
    linear-gradient(90deg, transparent 46%, var(--accent) 46% 54%, transparent 54%),
    linear-gradient(0deg, transparent 46%, var(--accent) 46% 54%, transparent 54%);
}

.drop-icon.source {
  border-color: rgba(126, 182, 255, 0.55);
  background:
    linear-gradient(90deg, transparent 46%, var(--source) 46% 54%, transparent 54%),
    linear-gradient(0deg, transparent 46%, var(--source) 46% 54%, transparent 54%);
}

.drop-title {
  font-weight: 760;
}

.drop-meta {
  min-width: 0;
  color: var(--muted);
  font-size: 0.84rem;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.control-row,
.control-grid label[data-hint],
.switch-row[data-hint],
.format-row[data-hint] {
  position: relative;
}

.control-row {
  display: grid;
  grid-template-columns: minmax(70px, 1fr) auto;
  gap: 8px;
  align-items: center;
  margin-top: 14px;
  color: var(--muted);
}

.control-row[data-hint]::after,
.control-grid label[data-hint]::after,
.switch-row[data-hint]::after,
.format-row[data-hint]::after {
  position: absolute;
  right: 0;
  bottom: calc(100% + 8px);
  z-index: 4;
  width: min(260px, 86vw);
  border: 1px solid rgba(242, 162, 58, 0.34);
  border-radius: 8px;
  padding: 8px 10px;
  background: #111719;
  box-shadow: 0 14px 34px rgba(0, 0, 0, 0.36);
  color: var(--text);
  content: attr(data-hint);
  font-size: 0.8rem;
  line-height: 1.35;
  opacity: 0;
  pointer-events: none;
  transform: translateY(4px);
  transition:
    opacity 140ms ease,
    transform 140ms ease;
}

.control-row[data-hint]:hover::after,
.control-row[data-hint]:focus-within::after,
.control-grid label[data-hint]:hover::after,
.control-grid label[data-hint]:focus-within::after,
.switch-row[data-hint]:hover::after,
.switch-row[data-hint]:focus-within::after,
.format-row[data-hint]:hover::after,
.format-row[data-hint]:focus-within::after {
  opacity: 1;
  transform: translateY(0);
}

.control-row[data-hint].hint-dismissed::after,
.control-grid label[data-hint].hint-dismissed::after,
.switch-row[data-hint].hint-dismissed::after,
.format-row[data-hint].hint-dismissed::after {
  opacity: 0;
  transform: translateY(4px);
}

.control-row input {
  grid-column: 1 / 3;
}

.control-row output {
  color: var(--text);
  font-variant-numeric: tabular-nums;
}

.control-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 12px;
  margin-top: 16px;
}

.control-grid label,
.format-row {
  display: grid;
  gap: 7px;
  color: var(--muted);
  font-size: 0.86rem;
}

.switch-row {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-top: 14px;
  color: var(--muted);
}

.switch-row input {
  width: 18px;
  height: 18px;
  accent-color: var(--accent);
}

.transport-switch output {
  margin-left: auto;
  color: var(--text);
  font-size: 0.82rem;
  font-variant-numeric: tabular-nums;
}

.action-grid {
  display: grid;
  grid-template-columns: 1fr 1fr 1fr;
  gap: 10px;
  width: 100%;
  min-width: 0;
  max-width: 100%;
}

.audition-tabs {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 4px;
  margin-top: 14px;
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 4px;
  background: #0e1315;
  width: 100%;
  min-width: 0;
  max-width: 100%;
}

.audition-tabs button {
  min-height: 36px;
  min-width: 0;
  border-color: transparent;
  background: transparent;
  color: var(--muted);
}

.audition-tabs button.active {
  background: #22332d;
  color: var(--accent);
}

.transport-timeline {
  display: grid;
  gap: 8px;
  margin-top: 14px;
}

.transport-timeline input {
  width: 100%;
}

.time-row {
  display: flex;
  justify-content: space-between;
  color: var(--muted);
  font-size: 0.83rem;
  font-variant-numeric: tabular-nums;
}

.transport-controls {
  display: grid;
  grid-template-columns: 0.75fr 1fr 0.75fr 0.75fr;
  gap: 10px;
  margin-top: 12px;
  width: 100%;
  min-width: 0;
  max-width: 100%;
}

.transport-controls .play-button {
  min-width: 72px;
}

.transport-wide {
  display: grid;
  gap: 14px;
  width: 100%;
  min-width: 0;
  max-width: 100%;
}

.transport-panel {
  container-type: inline-size;
}

.transport-wide .action-grid {
  grid-template-columns: repeat(3, minmax(0, 1fr));
}

.transport-wide button,
.transport-wide select,
.transport-wide input {
  max-width: 100%;
}

.transport-settings {
  display: grid;
  grid-template-columns: minmax(205px, 0.95fr) minmax(128px, 0.42fr) minmax(160px, 0.54fr);
  gap: 12px;
  align-items: end;
  width: 100%;
  min-width: 0;
  max-width: 100%;
}

.transport-settings .transport-switch,
.transport-settings .format-row {
  margin-top: 0;
}

.transport-settings .transport-switch {
  display: grid;
  grid-template-columns: 18px minmax(0, 1fr);
  gap: 5px 10px;
  align-items: start;
}

.transport-settings .transport-switch span {
  min-width: 0;
  overflow-wrap: anywhere;
}

.transport-settings .transport-switch output {
  grid-column: 2;
  justify-self: start;
  margin-left: 0;
  color: var(--accent);
  font-weight: 760;
  white-space: nowrap;
}

.format-row {
  margin-top: 14px;
}

.visual-panel {
  min-width: 0;
  padding: 16px;
}

.spectrum-panel canvas {
  aspect-ratio: 16 / 7;
}

canvas {
  display: block;
  width: 100%;
  height: auto;
  border: 1px solid #242d2f;
  border-radius: 8px;
  background: #090d0e;
}

#correctionCanvas {
  aspect-ratio: 720 / 340;
}

.lower-grid {
  display: grid;
  grid-template-columns: minmax(360px, 1.12fr) minmax(360px, 0.88fr);
  gap: 18px;
}

.legend {
  display: flex;
  flex-wrap: wrap;
  justify-content: end;
  gap: 12px;
  color: var(--muted);
  font-size: 0.83rem;
}

.legend span::before {
  content: "";
  display: inline-block;
  width: 20px;
  height: 2px;
  margin-right: 7px;
  vertical-align: middle;
}

.legend-ref::before {
  background: var(--accent);
}

.legend-source::before {
  background: var(--source);
}

.legend-rendered::before {
  background: var(--accent-2);
}

.readout {
  color: var(--muted);
  font-size: 0.86rem;
  font-variant-numeric: tabular-nums;
}

.metrics {
  display: grid;
  gap: 12px;
  margin: 0;
}

.metrics div {
  display: grid;
  grid-template-columns: minmax(84px, 0.8fr) minmax(0, 1fr);
  gap: 10px;
  align-items: baseline;
  border-bottom: 1px solid #242d2f;
  padding-bottom: 10px;
}

.metrics div:last-child {
  border-bottom: 0;
  padding-bottom: 0;
}

.metrics dt {
  color: var(--muted);
}

.metrics dd {
  margin: 0;
  color: var(--text);
  font-variant-numeric: tabular-nums;
  overflow-wrap: anywhere;
}

.compact-metrics {
  gap: 10px;
}

.compact-metrics div {
  grid-template-columns: 1fr;
  gap: 4px;
}

@media (max-width: 1240px) {
  .lower-grid {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 1040px) {
  .workspace,
  .lower-grid {
    grid-template-columns: 1fr;
  }

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

@media (max-width: 900px) {
  .transport-wide .action-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .transport-wide .action-grid button:last-child {
    grid-column: 1 / -1;
  }

  .transport-settings {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .transport-settings .transport-switch {
    grid-column: 1 / -1;
  }
}

@container (max-width: 720px) {
  .transport-settings {
    grid-template-columns: minmax(170px, 0.82fr) minmax(120px, 0.5fr) minmax(150px, 0.62fr);
    gap: 10px;
  }
}

@container (max-width: 620px) {
  .transport-settings {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .transport-settings .transport-switch {
    grid-column: 1 / -1;
  }
}

@media (max-width: 780px) {
  .app-shell {
    padding: 14px;
  }

  .topbar {
    display: grid;
    align-items: start;
  }

  .status-wrap {
    width: 100%;
    min-width: 0;
  }

  .status-pill {
    justify-self: stretch;
  }

  .side-panel,
  .control-grid,
  .transport-settings {
    grid-template-columns: 1fr;
  }

  .transport-wide .action-grid {
    grid-template-columns: 1fr;
  }

  .transport-controls {
    grid-template-columns: 1fr 1fr;
  }
}