:root {
  color-scheme: light;
  --ink: #202124;
  --muted: #5b616e;
  --line: #d9dee7;
  --panel: #f6f8fb;
  --accent: #b43f2d;
  --accent-dark: #7f2b22;
  --bg: #ffffff;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  color: var(--ink);
  background: var(--bg);
  line-height: 1.6;
}

main {
  width: min(1080px, calc(100% - 32px));
  margin: 0 auto;
}

.hero {
  min-height: 58vh;
  display: flex;
  flex-direction: column;
  justify-content: center;
  padding: 72px 0 48px;
  border-bottom: 1px solid var(--line);
}

.eyebrow {
  margin: 0 0 16px;
  color: var(--accent-dark);
  font-size: 0.84rem;
  font-weight: 700;
  letter-spacing: 0;
  text-transform: uppercase;
}

h1 {
  max-width: 880px;
  margin: 0;
  font-size: clamp(2.4rem, 7vw, 5.8rem);
  line-height: 0.98;
  letter-spacing: 0;
}

.subtitle {
  max-width: 760px;
  margin: 24px 0 0;
  color: var(--muted);
  font-size: clamp(1.15rem, 2.3vw, 1.6rem);
}

.authors {
  margin: 18px 0 0;
  color: var(--ink);
  font-weight: 600;
}

.affiliation {
  margin: 4px 0 0;
  color: var(--muted);
  font-weight: 600;
}

section {
  padding: 56px 0;
}

h2 {
  margin: 0 0 18px;
  font-size: clamp(1.6rem, 3vw, 2.4rem);
  line-height: 1.1;
  letter-spacing: 0;
}

.summary p {
  max-width: 860px;
  margin: 0 0 18px;
  color: var(--muted);
  font-size: 1.04rem;
}

.figure-section {
  border-top: 1px solid var(--line);
}

.figure-block {
  display: grid;
  grid-template-columns: 1fr;
  gap: 20px;
  padding: 0;
}

.placeholder {
  aspect-ratio: 16 / 9;
  display: grid;
  place-items: center;
  min-height: 220px;
  border: 2px dashed #aeb7c5;
  border-radius: 8px;
  background:
    linear-gradient(135deg, rgba(180, 63, 45, 0.09), rgba(31, 112, 105, 0.08)),
    var(--panel);
  color: #697386;
  font-weight: 700;
}

.placeholder span {
  padding: 10px 14px;
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.78);
}

.paper-image {
  display: block;
  width: 100%;
  height: auto;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--panel);
  box-shadow: 0 18px 44px rgba(32, 33, 36, 0.08);
}

.case-stack {
  display: grid;
  gap: 28px;
}

.case-image {
  max-width: 100%;
}

.figure-copy p {
  max-width: 860px;
  margin: 0;
  color: var(--muted);
}

@media (max-width: 760px) {
  main {
    width: min(100% - 24px, 1080px);
  }

  .hero {
    min-height: 52vh;
    padding: 56px 0 36px;
  }

  section {
    padding: 40px 0;
  }

  .figure-block {
    gap: 18px;
  }
}