:root {
  color-scheme: dark;
  --background: #0e1015;
  --panel: #15181f;
  --panel-dark: #10131a;
  --line: #2a303a;
  --text: #f0f2f6;
  --muted: #a1aab9;
  --subtle: #828e9f;
  --mint: #79edc6;
  --red: #ff8190;
  --amber: #f0ca8b;
  --mono: "Cascadia Mono", "SFMono-Regular", Consolas, monospace;
  --sans: "Segoe UI", "Hiragino Sans", "Yu Gothic UI", Meiryo, sans-serif;
  font-family: var(--sans);
}

*, *::before, *::after { box-sizing: border-box; }
body { margin: 0; min-width: 280px; color: var(--text); background: var(--background); }
button { font: inherit; }

.topbar {
  min-height: 68px;
  padding: 0 max(24px, calc((100vw - 1160px) / 2));
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 16px;
  border-bottom: 1px solid #232832;
  background: #12151b;
}
.brand, .local-state { display: flex; align-items: center; gap: 10px; white-space: nowrap; }
.wordmark { font-size: 17px; font-weight: 730; letter-spacing: -.025em; }
.wordmark span { margin-left: 6px; color: var(--subtle); font: 10px var(--mono); letter-spacing: .15em; }
.local-state { font-size: 12px; color: var(--muted); }
.local-state i, #analysis-status i {
  width: 7px;
  height: 7px;
  flex: 0 0 7px;
  border-radius: 50%;
  background: var(--mint);
  box-shadow: 0 0 10px #79edc64a;
}

.workspace { width: min(1160px, calc(100% - 48px)); margin: 44px auto 22px; }
.intro { display: flex; justify-content: space-between; align-items: end; gap: 22px; margin-bottom: 26px; }
.eyebrow { margin: 0 0 9px; color: var(--mint); font: 11px var(--mono); letter-spacing: .18em; }
h1 { margin: 0; font-size: clamp(24px, 4vw, 36px); line-height: 1.3; letter-spacing: -.035em; }
.lede { margin: 9px 0 0; color: var(--muted); font-size: 14px; line-height: 1.7; }
.spec {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 6px;
  min-width: max-content;
  padding-bottom: 2px;
}
.spec span:not(.spec-label) {
  border: 1px solid #303944;
  background: #171d25;
  color: #c8d4dc;
  border-radius: 5px;
  padding: 7px 8px;
  font: 11px var(--mono);
}
.spec-label { margin-right: 3px; color: var(--subtle); font-size: 11px; }

.console { display: grid; grid-template-columns: minmax(0, 1.2fr) minmax(0, 1fr); gap: 16px; }
.module {
  min-width: 0;
  overflow: hidden;
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: 12px;
  box-shadow: 0 8px 24px #05070a38;
}
.module-head {
  min-height: 50px;
  padding: 0 16px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 10px;
  border-bottom: 1px solid #282d37;
  background: #191d25;
}
.module-head > div { display: flex; align-items: center; gap: 10px; }
.module-number { color: #a5b1bf; font: 11px var(--mono); padding: 3px 5px; border: 1px solid #3b4351; border-radius: 4px; }
.module h2 { margin: 0; font-size: 14px; font-weight: 660; }
.module-tag { color: var(--subtle); font: 10px var(--mono); letter-spacing: .11em; text-align: right; }

.input-module { display: flex; flex-direction: column; }
.drop-zone {
  flex: 1;
  min-height: 214px;
  margin: 15px 15px 0;
  padding: 20px 12px;
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  text-align: center;
  background: radial-gradient(ellipse at 50% 5%, #1b2a2b, #11161c 66%);
  border: 1px dashed #4b6266;
  border-radius: 8px;
  transition: border-color 150ms, background-color 150ms, box-shadow 150ms;
}
.drop-zone.is-dragging { border-color: var(--mint); box-shadow: inset 0 0 0 1px var(--mint); background: #1c3331; }
.drop-icon {
  display: grid;
  place-items: center;
  width: 45px;
  height: 45px;
  color: var(--mint);
  background: #1e3434;
  border: 1px solid #355655;
  border-radius: 10px;
}
.drop-icon svg { width: 26px; height: 26px; }
.drop-title { margin: 12px 0 0; font-weight: 700; font-size: 17px; }
.drop-hint { margin: 4px 0 13px; color: var(--muted); font-size: 12px; }
.choose-file {
  display: inline-flex;
  align-items: center;
  gap: 13px;
  padding: 8px 12px;
  color: #0c201a;
  background: var(--mint);
  border: 1px solid transparent;
  border-radius: 6px;
  font-size: 12px;
  font-weight: 730;
  cursor: pointer;
}
.choose-file:hover { background: #a3f8da; }
.choose-file:focus-visible { outline: 2px solid #fff; outline-offset: 3px; }
.choose-file:disabled { opacity: .6; cursor: wait; }
.file-strip {
  display: flex;
  align-items: center;
  gap: 8px;
  min-height: 42px;
  padding: 0 16px;
  color: var(--muted);
  font-size: 12px;
}
.file-strip svg { width: 17px; height: 17px; flex: 0 0 17px; color: var(--subtle); }
#file-name { overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
#file-size { margin-left: auto; flex: 0 0 auto; font: 11px var(--mono); color: var(--subtle); }

.readouts { display: grid; gap: 6px; margin: 14px; }
.reading {
  min-height: 51px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 9px;
  padding: 8px 11px;
  border: 1px solid #282e39;
  border-radius: 6px;
  background: var(--panel-dark);
}
.reading dt { min-width: 0; font-size: 13px; font-weight: 600; }
.reading small { display: block; color: var(--subtle); margin-top: 2px; font: 10px var(--mono); }
.reading dd { display: flex; align-items: center; gap: 8px; margin: 0; }
.metric-value { color: #cbd4df; font: 650 15px var(--mono); text-align: right; white-space: nowrap; }
.reading dd > i { width: 7px; height: 7px; border-radius: 50%; background: #4a5261; }
.reading[data-state="pass"] .metric-value { color: var(--mint); }
.reading[data-state="pass"] dd > i { background: var(--mint); }
.reading[data-state="fail"] { border-color: #693f49; background: #24191f; }
.reading[data-state="fail"] :is(.metric-value, #peak-value) { color: var(--red); }
.reading[data-state="fail"] dd > i { background: var(--red); }
.reading[data-state="unknown"] .metric-value { color: var(--amber); }
.reading[data-state="unknown"] dd > i { background: var(--amber); }
.peak-result { display: flex; align-items: baseline; gap: 8px; }
#peak-value { color: #a7b2c1; font: 11px var(--mono); white-space: nowrap; }
.correction { display: flex; align-items: center; gap: 8px 12px; flex-wrap: wrap; margin: 0 14px 14px; }
.correction[hidden] { display: none; }
#correction-status { color: var(--muted); font-size: 11px; }

.waveform-module { grid-column: 1 / -1; }
.wave-body { display: flex; gap: 10px; padding: 13px 16px 11px; }
.wave-levels {
  width: 18px;
  flex: 0 0 18px;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  align-items: end;
  padding: 3px 0 24px;
  color: var(--subtle);
  font: 10px var(--mono);
}
.wave-content { flex: 1; min-width: 0; }
.wave-plot {
  position: relative;
  height: 129px;
  display: grid;
  place-items: center;
  overflow: hidden;
  border: 1px solid #2b323e;
  border-radius: 5px;
  background-color: #0e1219;
  background-image:
    linear-gradient(#3a495939 1px, transparent 1px),
    linear-gradient(90deg, #3a495939 1px, transparent 1px);
  background-size: 100% 25%, 6.25% 100%;
}
.wave-plot::after { content: ""; position: absolute; top: 50%; inset-inline: 0; height: 1px; background: #50627570; pointer-events: none; }
#waveform { position: absolute; inset: 0; width: 100%; height: 100%; }
.wave-message {
  position: relative;
  z-index: 1;
  max-width: 95%;
  padding: 7px 10px;
  border: 1px solid #2b3945;
  border-radius: 5px;
  background: #171e27;
  color: #b4bfcc;
  font-size: 11px;
  text-align: center;
}
.wave-message[hidden] { display: none; }
.wave-plot.is-seekable { cursor: crosshair; }
.playhead { position: absolute; inset-block: 0; width: 1px; z-index: 2; background: #eaf6ff; pointer-events: none; }
.timeline { display: flex; justify-content: space-between; padding-top: 6px; color: var(--subtle); font: 10px var(--mono); }
.transport { display: flex; align-items: center; flex-wrap: wrap; gap: 8px 12px; padding: 9px 16px; border-top: 1px solid #282e39; }
.transport-button { padding: 6px 10px; border: 1px solid #3b4655; border-radius: 5px; background: #202832; color: var(--text); font-size: 12px; cursor: pointer; }
.transport-button:hover:not(:disabled) { border-color: var(--mint); color: var(--mint); }
.transport-button:disabled { opacity: .5; cursor: default; }
#play-toggle { min-width: 82px; }
.transport-time { color: var(--muted); font: 11px var(--mono); }
.seek { flex: 1 1 90px; min-width: 0; margin: 0; accent-color: var(--mint); }
.clip-legend { color: var(--red); font-size: 11px; white-space: nowrap; }
.clip-legend::before { content: ""; display: inline-block; width: 8px; height: 8px; margin-right: 5px; border-radius: 2px; background: currentColor; }
.playback-status { color: var(--amber); font-size: 11px; }

.workspace-footer {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  gap: 12px;
  margin-top: 13px;
  color: var(--muted);
  font-size: 11px;
  line-height: 1.6;
}
#analysis-status { display: flex; align-items: center; gap: 7px; flex: 0 1 auto; }
#analysis-status i { background: #687485; box-shadow: none; }
#analysis-status[data-state="busy"] i { background: var(--amber); }
#analysis-status[data-state="pass"] i { background: var(--mint); }
#analysis-status[data-state="fail"] i { background: var(--red); }
.workspace-footer p { margin: 0; }

@media (max-width: 790px) {
  .workspace { margin-top: 30px; }
  .intro { align-items: start; flex-direction: column; gap: 14px; }
}
@media (max-width: 620px) {
  .topbar { min-height: 58px; padding-inline: 16px; }
  .workspace { width: calc(100% - 28px); margin-top: 24px; }
  .console { grid-template-columns: 1fr; gap: 12px; }
  .intro { margin-bottom: 18px; }
  .workspace-footer { flex-direction: column; gap: 5px; }
  .wave-plot { height: 108px; }
}
@media (max-width: 365px) {
  .wordmark span { display: none; }
  .local-state { font-size: 11px; }
  .peak-result { flex-direction: column; align-items: end; gap: 2px; }
}
@media (prefers-reduced-motion: reduce) {
  .drop-zone { transition: none; }
}