:root {
  color-scheme: light;
  --bg: #f6f7f4;
  --panel: #ffffff;
  --text: #17201b;
  --muted: #66716b;
  --line: #dce2dd;
  --accent: #1f7a6d;
  --accent-dark: #15574e;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  letter-spacing: 0;
}

.app {
  width: min(1180px, calc(100% - 32px));
  margin: 0 auto;
  padding: 28px 0 48px;
}

.topbar {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 20px;
  padding-bottom: 18px;
  border-bottom: 1px solid var(--line);
}

h1 {
  margin: 0 0 6px;
  font-size: 30px;
  line-height: 1.1;
  font-weight: 720;
}

h2 {
  margin: 0 0 10px;
  font-size: 15px;
  line-height: 1.2;
}

p {
  margin: 0;
}

#sampleMeta {
  color: var(--muted);
  font-size: 14px;
}

button,
select {
  min-height: 40px;
  border: 1px solid var(--line);
  background: var(--panel);
  color: var(--text);
  border-radius: 6px;
  font: inherit;
}

button {
  padding: 0 16px;
  background: var(--accent);
  border-color: var(--accent);
  color: #fff;
  cursor: pointer;
  white-space: nowrap;
}

button:hover {
  background: var(--accent-dark);
}

select {
  width: 100%;
  padding: 0 12px;
}

.controls {
  display: grid;
  grid-template-columns: repeat(2, minmax(180px, 280px));
  gap: 14px;
  margin: 22px 0;
}

label {
  display: grid;
  gap: 7px;
  color: var(--muted);
  font-size: 13px;
}

.transcript {
  display: grid;
  grid-template-columns: minmax(0, 1.2fr) minmax(280px, 0.8fr);
  gap: 16px;
  margin-bottom: 24px;
}

.transcript > div,
.modelCard {
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 16px;
}

#targetText,
#referenceText {
  font-size: 17px;
  line-height: 1.65;
}

#referenceText {
  margin-bottom: 12px;
}

audio {
  width: 100%;
  display: block;
}

.sectionTitle {
  margin-bottom: 12px;
}

.modelGrid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 14px;
}

.modelCard {
  display: grid;
  gap: 12px;
}

.modelName {
  font-weight: 700;
}

.missing {
  color: var(--muted);
  font-size: 14px;
}

@media (max-width: 720px) {
  .app {
    width: min(100% - 20px, 1180px);
    padding-top: 18px;
  }

  .topbar,
  .transcript {
    grid-template-columns: 1fr;
  }

  .topbar {
    display: grid;
  }

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

  button {
    width: 100%;
  }
}