* {
  box-sizing: border-box;
}

:root {
  --bg: #f7f8fa;
  --surface: #ffffff;
  --text: #17202a;
  --muted: #5f6b7a;
  --line: #d9dee7;
  --accent: #0b6bcb;
  --accent-dark: #084f95;
}

body {
  margin: 0;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  color: var(--text);
  background: var(--bg);
  line-height: 1.5;
}

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

.page-header {
  background: var(--surface);
  border-bottom: 1px solid var(--line);
  padding: 40px 0 28px;
}

.eyebrow {
  margin: 0 0 8px;
  color: var(--accent-dark);
  font-size: 0.78rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0;
}

h1 {
  margin: 0;
  font-size: clamp(2rem, 5vw, 3.6rem);
  line-height: 1.05;
  letter-spacing: 0;
}

.summary {
  max-width: 820px;
  margin: 16px 0 0;
  color: var(--muted);
  font-size: 1.05rem;
}

.quick-links {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 22px;
}

.quick-links a,
.file-link {
  color: var(--accent);
  text-decoration: none;
  font-weight: 650;
}

.quick-links a:hover,
.file-link:hover,
.page-footer a:hover {
  text-decoration: underline;
}

.note-panel {
  margin: 28px 0;
  padding: 18px 20px;
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: 8px;
}

.note-panel h2 {
  margin: 0 0 6px;
  font-size: 1.05rem;
}

.note-panel p {
  margin: 0;
  color: var(--muted);
}

.edit-section {
  margin: 44px 0;
}

.section-heading {
  border-top: 2px solid var(--text);
  padding-top: 14px;
  margin-bottom: 16px;
}

.section-heading h2 {
  margin: 0 0 6px;
  font-size: 1.8rem;
  letter-spacing: 0;
}

.section-heading p {
  margin: 0;
  color: var(--muted);
  max-width: 820px;
}

.comparison-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
  gap: 16px;
}

.comparison-card {
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 16px;
}

.comparison-card h3 {
  margin: 0 0 10px;
  font-size: 1rem;
}

.prompt,
.context-line {
  margin: 6px 0;
  color: var(--muted);
  font-size: 0.94rem;
}

.audio-pair {
  display: grid;
  grid-template-columns: 1fr;
  gap: 12px;
  margin-top: 14px;
}

.player-block {
  padding: 12px;
  border: 1px solid var(--line);
  border-radius: 6px;
  background: #fbfcfe;
}

.player-label {
  margin-bottom: 8px;
  font-size: 0.82rem;
  font-weight: 700;
  color: var(--text);
  text-transform: uppercase;
  letter-spacing: 0;
}

audio {
  display: block;
  width: 100%;
  min-height: 40px;
}

.file-link {
  display: inline-block;
  margin-top: 8px;
  font-size: 0.88rem;
}

.page-footer {
  border-top: 1px solid var(--line);
  padding: 24px 0 36px;
  color: var(--muted);
  background: var(--surface);
}

.page-footer p {
  margin: 0;
  max-width: 900px;
}

.page-footer a {
  color: var(--accent);
}

code {
  font-family: "SFMono-Regular", Consolas, "Liberation Mono", monospace;
  font-size: 0.94em;
}

@media (max-width: 700px) {
  .inner {
    width: min(100% - 20px, 1180px);
  }

  .page-header {
    padding: 30px 0 22px;
  }

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