:root {
  color-scheme: light;
  --ink: #1b1f24;
  --muted: #5d6773;
  --line: #d9dee5;
  --panel: #ffffff;
  --paper: #f7f8fb;
  --accent: #0f766e;
  --accent-dark: #0b534e;
  --warm: #a16207;
  --soft: #eef7f5;
  --shadow: 0 18px 50px rgba(27, 31, 36, 0.08);
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  background: var(--paper);
  color: var(--ink);
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  font-size: 16px;
  line-height: 1.62;
}

a {
  color: var(--accent-dark);
  text-decoration: none;
}

a:hover {
  text-decoration: underline;
}

.site-header {
  border-bottom: 1px solid var(--line);
  background: linear-gradient(180deg, #ffffff 0%, #f7f8fb 100%);
}

.top-nav {
  display: flex;
  justify-content: center;
  gap: 1.2rem;
  padding: 1rem;
  font-size: 0.95rem;
  font-weight: 650;
}

.hero {
  max-width: 980px;
  margin: 0 auto;
  padding: 4rem 1.25rem 3.2rem;
  text-align: center;
}

.venue-tag {
  margin: 0 0 0.6rem;
  color: var(--warm);
  font-size: 0.84rem;
  font-weight: 800;
  letter-spacing: 0;
  text-transform: uppercase;
}

h1,
h2,
h3,
p {
  overflow-wrap: anywhere;
}

h1 {
  max-width: 900px;
  margin: 0 auto;
  font-family: Georgia, "Times New Roman", serif;
  font-size: clamp(2.15rem, 7vw, 2.55rem);
  line-height: 1.04;
  letter-spacing: 0;
}

.subtitle {
  max-width: 760px;
  margin: 1.1rem auto 1.5rem;
  color: var(--muted);
  font-size: 1.16rem;
}

.authors {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 0.35rem 0.85rem;
  margin: 1.6rem auto 0.85rem;
  font-weight: 720;
}

.authors span {
  white-space: nowrap;
}

.affiliation {
  max-width: 760px;
  margin: 0 auto;
  color: var(--muted);
  font-size: 0.98rem;
}

.action-row {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 0.75rem;
  margin-top: 1.7rem;
}

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 42px;
  padding: 0.66rem 1rem;
  border: 1px solid var(--accent);
  border-radius: 7px;
  background: var(--accent);
  color: #ffffff;
  font-weight: 750;
}

.button:hover {
  background: var(--accent-dark);
  text-decoration: none;
}

.button.secondary {
  background: #ffffff;
  color: var(--accent-dark);
}

main {
  max-width: 1080px;
  margin: 0 auto;
  padding: 2.4rem 1.25rem 4rem;
}

.section {
  padding: 2.4rem 0;
  border-bottom: 1px solid var(--line);
}

.section:last-child {
  border-bottom: 0;
}

h2 {
  margin: 0 0 1rem;
  font-size: clamp(1.55rem, 4vw, 2.15rem);
  line-height: 1.16;
  letter-spacing: 0;
}

.section > p {
  max-width: 920px;
}

.keywords {
  color: var(--muted);
}

figure {
  max-width: 820px;
  margin: 1.4rem auto 0;
  padding: 0;
}

figure a {
  display: block;
}

figure img {
  display: block;
  width: 100%;
  height: auto;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: #ffffff;
  box-shadow: var(--shadow);
}

figcaption {
  max-width: 980px;
  margin: 0.7rem auto 0;
  color: var(--muted);
  font-size: 0.94rem;
  text-align: center;
}

.figure-note {
  max-width: 900px;
  margin: 0.85rem auto 0;
  color: var(--muted);
  font-size: 0.98rem;
  line-height: 1.65;
  text-align: left;
}

.wide-figure {
  max-width: 900px;
  margin-right: auto;
  margin-left: auto;
}

.figure-stack {
  display: grid;
  gap: 2rem;
}

.two-column {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1.2rem;
  align-items: start;
}

.section-heading {
  display: flex;
  align-items: end;
  justify-content: space-between;
  gap: 1rem;
  margin-bottom: 1rem;
}

.section-heading h2,
.section-heading p {
  margin: 0;
}

.section-note {
  color: var(--muted);
}

code {
  padding: 0.12rem 0.28rem;
  border: 1px solid var(--line);
  border-radius: 5px;
  background: #ffffff;
  font-size: 0.9em;
}

.audio-panel {
  overflow: hidden;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--panel);
  box-shadow: var(--shadow);
}

.audio-table-wrap {
  overflow-x: auto;
}

.audio-table {
  min-width: 220px;
}

.audio-table td.audio-cell {
  width: 190px;
  min-width: 190px;
}

.audio-table td.audio-cell audio {
  width: 165px;
  min-width: 165px;
}

.audio-table audio {
  width: 230px;
  min-width: 230px;
}

.sample-id {
  min-width: 7.5rem;
  color: var(--ink);
  font-weight: 760;
}

audio {
  display: block;
  width: 260px;
  max-width: none;
  height: 40px;
}

.audio-pending {
  display: inline-flex;
  align-items: center;
  min-height: 34px;
  padding: 0.25rem 0.55rem;
  border: 1px dashed #b8c0ca;
  border-radius: 6px;
  color: var(--muted);
  font-size: 0.86rem;
  white-space: nowrap;
}

footer {
  padding: 1.4rem 1rem 2.2rem;
  color: var(--muted);
  text-align: center;
}

footer p {
  margin: 0;
}

@media (max-width: 760px) {
  .top-nav {
    flex-wrap: wrap;
    gap: 0.75rem;
  }

  .hero {
    padding-top: 3rem;
  }

  .authors span {
    white-space: normal;
  }

  .two-column {
    grid-template-columns: 1fr;
  }

  .section-heading {
    display: block;
  }
}