:root {
  color-scheme: dark;
  --bg: #070909;
  --bg-2: #0c1010;
  --panel: #101515;
  --panel-strong: #151b1b;
  --panel-soft: #0d1212;
  --line: rgba(218, 214, 198, 0.11);
  --line-strong: rgba(218, 214, 198, 0.2);
  --text: #ece8dd;
  --muted: #9c998f;
  --soft: #6f716b;
  --accent: #d6b65c;
  --accent-2: #b7903e;
  --accent-text: #171205;
  --shadow: rgba(3, 5, 5, 0.55);
  font-family:
    "Aptos",
    "Pretendard",
    "SUIT",
    ui-sans-serif,
    system-ui,
    -apple-system,
    BlinkMacSystemFont,
    "Segoe UI",
    sans-serif;
}

* {
  box-sizing: border-box;
}

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

body {
  margin: 0;
  background:
    radial-gradient(circle at 18% 0%, rgba(214, 182, 92, 0.12), transparent 28rem),
    radial-gradient(circle at 84% 12%, rgba(236, 232, 221, 0.045), transparent 24rem),
    linear-gradient(180deg, var(--bg-2), var(--bg) 28rem),
    var(--bg);
  color: var(--text);
  font-feature-settings: "tnum" 1, "ss01" 1;
  text-rendering: geometricPrecision;
}

body::before {
  position: fixed;
  inset: 0;
  z-index: 50;
  pointer-events: none;
  content: "";
  opacity: 0.32;
  background-image:
    linear-gradient(rgba(236, 232, 221, 0.025) 1px, transparent 1px),
    linear-gradient(90deg, rgba(236, 232, 221, 0.018) 1px, transparent 1px);
  background-size: 4px 4px, 37px 37px;
  mix-blend-mode: soft-light;
}

button,
select,
input {
  font: inherit;
}

button,
select {
  border: 1px solid var(--line-strong);
}

button {
  min-height: 2.65rem;
  border-radius: 6px;
  padding: 0 1rem;
  cursor: pointer;
  font-weight: 650;
  letter-spacing: 0;
  transition:
    transform 180ms ease,
    border-color 180ms ease,
    background 180ms ease,
    color 180ms ease,
    box-shadow 180ms ease;
}

button:hover:not(:disabled),
select:hover:not(:disabled) {
  border-color: rgba(214, 182, 92, 0.42);
}

button:active {
  transform: translateY(1px);
}

button:focus-visible,
select:focus-visible,
input:focus-visible {
  outline: 2px solid rgba(214, 182, 92, 0.78);
  outline-offset: 3px;
}

button:disabled,
select:disabled {
  cursor: not-allowed;
  opacity: 0.48;
}

select,
input[type="range"] {
  width: 100%;
}

select {
  min-height: 2.55rem;
  appearance: none;
  border-radius: 6px;
  background:
    linear-gradient(45deg, transparent 50%, var(--muted) 50%) calc(100% - 18px) 51% / 5px 5px no-repeat,
    linear-gradient(135deg, var(--muted) 50%, transparent 50%) calc(100% - 13px) 51% / 5px 5px no-repeat,
    var(--panel-strong);
  color: var(--text);
  padding: 0 2rem 0 0.75rem;
}

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

.shell {
  width: min(1500px, calc(100vw - 28px));
  min-height: 100dvh;
  margin: 0 auto;
  padding: 16px 0 22px;
}

.topbar {
  display: grid;
  grid-template-columns: minmax(18rem, 1fr) auto;
  gap: 1rem;
  align-items: center;
  min-height: 68px;
  border-bottom: 1px solid var(--line);
}

.brand {
  display: flex;
  min-width: 0;
  gap: 0.72rem;
  align-items: center;
}

.brand-mark {
  position: relative;
  width: 2.2rem;
  height: 2.2rem;
  flex: 0 0 auto;
  border: 1px solid rgba(214, 182, 92, 0.48);
  border-radius: 6px;
  background:
    linear-gradient(90deg, transparent 42%, rgba(214, 182, 92, 0.92) 42% 54%, transparent 54%),
    linear-gradient(180deg, rgba(214, 182, 92, 0.22), rgba(214, 182, 92, 0.03));
  box-shadow: inset 0 1px 0 rgba(236, 232, 221, 0.14);
}

.brand h1,
.scope-head h2 {
  margin: 0;
  letter-spacing: 0;
  line-height: 1.08;
}

.brand h1 {
  font-size: clamp(1.22rem, 1.65vw, 1.62rem);
  font-weight: 760;
  text-wrap: balance;
}

.eyebrow,
.panel-label {
  margin: 0 0 0.28rem;
  color: var(--accent);
  font-family: ui-monospace, SFMono-Regular, Consolas, monospace;
  font-size: 0.68rem;
  letter-spacing: 0.06em;
}

.controls {
  display: grid;
  grid-template-columns: minmax(12rem, 18rem) repeat(3, auto);
  gap: 0.6rem;
  align-items: end;
}

.site-nav,
.site-footer {
  display: flex;
  flex-wrap: wrap;
  gap: 0.45rem;
  align-items: center;
  padding: 0.72rem 0;
  border-bottom: 1px solid var(--line);
}

.site-nav a,
.site-footer a {
  color: var(--muted);
  text-decoration: none;
  border: 1px solid transparent;
  border-radius: 6px;
  padding: 0.38rem 0.55rem;
  font-size: 0.82rem;
  transition:
    color 180ms ease,
    border-color 180ms ease,
    background 180ms ease;
}

.site-nav a:hover,
.site-footer a:hover {
  color: var(--text);
  border-color: var(--line-strong);
  background: rgba(236, 232, 221, 0.035);
}

.site-footer {
  justify-content: flex-end;
  margin-top: 1rem;
  border-top: 1px solid var(--line);
  border-bottom: 0;
  color: var(--soft);
  font-size: 0.82rem;
}

.select-wrap,
.compact-controls label {
  display: grid;
  gap: 0.35rem;
  color: var(--muted);
  font-size: 0.78rem;
}

.primary-button {
  background: var(--accent);
  color: var(--accent-text);
  border-color: var(--accent);
  box-shadow: inset 0 1px 0 rgba(255, 246, 204, 0.28), 0 14px 32px rgba(12, 9, 2, 0.22);
}

.secondary-button {
  background: rgba(236, 232, 221, 0.045);
  color: var(--text);
  border-color: rgba(236, 232, 221, 0.18);
}

.freeze-button[aria-pressed="true"] {
  background: rgba(214, 182, 92, 0.14);
  color: var(--accent);
  border-color: rgba(214, 182, 92, 0.52);
}

.ghost-button {
  background: transparent;
  color: var(--muted);
}

.workspace {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(20rem, 23.5rem);
  gap: 0.85rem;
  padding-top: 1rem;
}

.scope-panel,
.readout-panel,
.metric-block {
  border: 1px solid var(--line);
  border-radius: 7px;
  background:
    linear-gradient(180deg, rgba(236, 232, 221, 0.026), transparent 9rem),
    rgba(16, 21, 21, 0.9);
  box-shadow: 0 18px 54px var(--shadow), inset 0 1px 0 rgba(236, 232, 221, 0.04);
}

.scope-panel {
  min-width: 0;
  overflow: hidden;
}

.scope-head {
  display: flex;
  gap: 1rem;
  justify-content: space-between;
  align-items: center;
  padding: 0.92rem 1rem;
  border-bottom: 1px solid var(--line);
}

.scope-head h2 {
  font-size: clamp(1.1rem, 2vw, 1.55rem);
  font-weight: 760;
  text-wrap: balance;
}

.status-pill {
  min-width: 5.5rem;
  border: 1px solid var(--line-strong);
  border-radius: 6px;
  padding: 0.4rem 0.7rem;
  color: var(--muted);
  text-align: center;
  font-size: 0.8rem;
}

.status-pill[data-active="true"] {
  border-color: rgba(214, 182, 92, 0.44);
  background: rgba(214, 182, 92, 0.11);
  color: var(--accent);
}

.canvas-shell {
  position: relative;
  height: min(68dvh, 720px);
  min-height: 430px;
  background:
    linear-gradient(180deg, rgba(236, 232, 221, 0.025), transparent),
    #0a1010;
}

canvas {
  display: block;
  width: 100%;
  height: 100%;
}

.idle-state {
  position: absolute;
  inset: 50% auto auto 50%;
  display: grid;
  gap: 0.3rem;
  width: min(20rem, calc(100% - 2rem));
  padding: 1rem 1.1rem;
  border: 1px solid var(--line-strong);
  border-radius: 7px;
  background: rgba(7, 9, 9, 0.84);
  text-align: left;
  transform: translate(-50%, -50%);
  backdrop-filter: blur(14px);
  box-shadow: 0 20px 48px var(--shadow), inset 0 1px 0 rgba(236, 232, 221, 0.06);
}

.idle-state[hidden] {
  display: none;
}

.idle-state strong {
  font-size: 1.05rem;
}

.idle-state span {
  color: var(--muted);
  font-size: 0.9rem;
}

.readout-panel {
  display: grid;
  gap: 0.68rem;
  align-content: start;
  padding: 0.68rem;
}

.metric-block {
  padding: 0.86rem;
}

.primary-metric {
  background:
    linear-gradient(135deg, rgba(214, 182, 92, 0.13), transparent 46%),
    rgba(21, 27, 27, 0.92);
}

.pitch-row {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 1rem;
}

.pitch-row strong {
  font-family: ui-monospace, SFMono-Regular, Consolas, monospace;
  font-size: clamp(2rem, 4.8vw, 3.35rem);
  letter-spacing: 0;
  line-height: 1;
  font-variant-numeric: tabular-nums;
}

.pitch-row span {
  color: var(--accent);
  font-family: ui-monospace, SFMono-Regular, Consolas, monospace;
  font-size: 1.2rem;
  font-weight: 800;
}

.cents-track {
  position: relative;
  height: 0.45rem;
  margin: 0.85rem 0 0.55rem;
  overflow: hidden;
  border-radius: 4px;
  background: rgba(242, 247, 247, 0.09);
}

.cents-track span {
  position: absolute;
  inset: 0 50%;
  width: 1px;
  background: rgba(242, 247, 247, 0.46);
}

.cents-track i {
  position: absolute;
  top: 0;
  bottom: 0;
  width: 0.45rem;
  border-radius: 4px;
  background: var(--accent);
  transform: translateX(-50%);
  transition: left 120ms ease;
}

.hint-line,
.cue-body {
  margin: 0.45rem 0 0;
  color: var(--muted);
  font-size: 0.83rem;
  line-height: 1.45;
}

.metric-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 0.75rem;
}

.metric-block strong {
  font-family: ui-monospace, SFMono-Regular, Consolas, monospace;
  font-size: 1.18rem;
}

.formant-stack {
  display: grid;
  gap: 0.45rem;
  margin-top: 0.1rem;
}

.formant-row {
  display: flex;
  justify-content: space-between;
  gap: 0.75rem;
  color: var(--muted);
  font-family: ui-monospace, SFMono-Regular, Consolas, monospace;
  font-size: 0.8rem;
}

.formant-row b {
  color: var(--text);
  font-weight: 700;
}

.meter {
  height: 0.46rem;
  margin-top: 0.65rem;
  overflow: hidden;
  border-radius: 4px;
  background: rgba(242, 247, 247, 0.09);
}

.meter span {
  display: block;
  width: 0%;
  height: 100%;
  border-radius: inherit;
  background: linear-gradient(90deg, rgba(236, 232, 221, 0.62), var(--accent));
  transition: width 100ms linear;
}

.section-title-row {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 0.8rem;
  margin-bottom: 0.75rem;
}

.toggle-line {
  display: inline-flex;
  gap: 0.4rem;
  align-items: center;
  color: var(--muted);
  font-size: 0.78rem;
}

.toggle-line input {
  width: auto;
  accent-color: var(--accent);
}

.harmonic-stack {
  display: grid;
  gap: 0.6rem;
}

.harmonic-row {
  display: grid;
  grid-template-columns: 2rem minmax(0, 1fr) 4.4rem;
  gap: 0.55rem;
  align-items: center;
  color: var(--muted);
  font-family: ui-monospace, SFMono-Regular, Consolas, monospace;
  font-size: 0.78rem;
}

.harmonic-row div {
  height: 0.5rem;
  overflow: hidden;
  border-radius: 4px;
  background: rgba(242, 247, 247, 0.08);
}

.harmonic-row i {
  display: block;
  width: 0%;
  height: 100%;
  border-radius: inherit;
  background: var(--accent);
  transition: width 110ms linear;
}

.harmonic-row b {
  color: var(--text);
  font-weight: 600;
  text-align: right;
}

.compact-controls {
  display: grid;
  gap: 0.9rem;
}

.tool-panel,
.quick-guide {
  display: grid;
  gap: 0.85rem;
  margin-top: 0.9rem;
}

.tool-panel {
  grid-template-columns: minmax(18rem, 0.78fr) minmax(24rem, 1.22fr);
}

.tool-card,
.quick-guide article {
  border: 1px solid var(--line);
  border-radius: 7px;
  background:
    linear-gradient(180deg, rgba(236, 232, 221, 0.026), transparent 9rem),
    rgba(16, 21, 21, 0.88);
  padding: 0.92rem;
  box-shadow: 0 18px 54px var(--shadow), inset 0 1px 0 rgba(236, 232, 221, 0.04);
}

.tool-card label {
  display: grid;
  gap: 0.35rem;
  color: var(--muted);
  font-size: 0.8rem;
}

.tool-card label + button {
  margin-top: 0.65rem;
}

.tool-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
}

.snapshot-list {
  display: grid;
  gap: 0.5rem;
  margin-top: 0.7rem;
}

.snapshot-list p {
  margin: 0;
  color: var(--muted);
  font-size: 0.84rem;
}

.snapshot-item {
  display: grid;
  min-height: auto;
  gap: 0.2rem;
  width: 100%;
  padding: 0.62rem 0.7rem;
  background: rgba(236, 232, 221, 0.035);
  color: var(--text);
  text-align: left;
}

.snapshot-item span {
  color: var(--muted);
  font-family: ui-monospace, SFMono-Regular, Consolas, monospace;
  font-size: 0.76rem;
}

.compare-panel {
  margin-top: 0.8rem;
  overflow-x: auto;
}

.compare-panel h3 {
  margin: 0 0 0.55rem;
  font-size: 0.95rem;
}

.compare-panel table {
  width: 100%;
  border-collapse: collapse;
  color: var(--muted);
  font-size: 0.8rem;
}

.compare-panel th,
.compare-panel td {
  border-top: 1px solid var(--line);
  padding: 0.48rem;
  text-align: left;
}

.compare-panel th {
  color: var(--text);
  font-weight: 700;
}

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

.quick-guide h2 {
  margin: 0 0 0.45rem;
  font-size: 1rem;
  letter-spacing: 0;
}

.quick-guide p {
  margin: 0;
  color: var(--muted);
  font-size: 0.9rem;
  line-height: 1.58;
}

#warningList[data-state="warn"] {
  color: #e4c26a;
}

.formant-row b[data-confidence="0"],
.formant-row b[data-confidence^="0.4"],
.formant-row b[data-confidence^="0.5"] {
  color: rgba(236, 232, 221, 0.58);
}

@media (max-width: 1120px) {
  .topbar,
  .workspace {
    grid-template-columns: 1fr;
  }

  .controls {
    grid-template-columns: minmax(12rem, 1fr) repeat(3, auto);
  }

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

  .primary-metric,
  .compact-controls {
    grid-column: 1 / -1;
  }

  .tool-panel,
  .quick-guide {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 720px) {
  .shell {
    width: min(100% - 20px, 1480px);
    padding: 10px 0;
  }

  .topbar {
    min-height: auto;
    padding-bottom: 0.85rem;
  }

  .controls,
  .readout-panel,
  .metric-grid,
  .tool-actions {
    grid-template-columns: 1fr;
  }

  .tool-panel,
  .quick-guide {
    grid-template-columns: 1fr;
  }

  .controls button {
    width: 100%;
  }

  .scope-head {
    align-items: flex-start;
    flex-direction: column;
  }

  .canvas-shell {
    height: 58dvh;
    min-height: 360px;
  }

  .pitch-row {
    align-items: flex-start;
    flex-direction: column;
  }
}

@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    scroll-behavior: auto !important;
    transition-duration: 0.01ms !important;
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
  }
}