.hero-lede {
  margin-bottom: 20px;
}

.author-list {
  display: flex;
  flex-wrap: wrap;
  gap: 8px 22px;
  margin-bottom: 30px;
  color: #4e6158;
  font: 500 13px/1.5 "DM Mono", monospace;
}

.author-list a {
  border-bottom: 1px solid rgba(16, 23, 20, 0.28);
  transition: color 0.2s, border-color 0.2s;
}

.author-list a:hover {
  color: #66820e;
  border-color: #66820e;
}

.hero-section {
  grid-template-columns: minmax(0, 920px);
}

.project-kicker {
  margin-bottom: 18px;
  color: #71896d;
  font: 600 clamp(28px, 4vw, 48px)/1 "DM Mono", monospace;
  letter-spacing: -0.05em;
}

.hero-copy .paper-title {
  max-width: 1050px;
  font-size: clamp(48px, 7.2vw, 104px);
  line-height: 0.95;
  letter-spacing: -0.065em;
}

.demo-section {
  position: relative;
}

.demo-section::before {
  content: "";
  position: absolute;
  inset: 0;
  pointer-events: none;
  background: radial-gradient(circle at 24% 22%, rgba(199, 255, 71, 0.12), transparent 34%);
}

.demo-section .shell {
  position: relative;
}

.demo-badge {
  width: fit-content;
  margin-bottom: 24px;
  padding: 9px 13px;
  border: 1px solid rgba(199, 255, 71, 0.32);
  border-radius: 999px;
  color: #d9ff7d;
  background: rgba(199, 255, 71, 0.07);
  font: 500 11px/1 "DM Mono", monospace;
  text-transform: uppercase;
  letter-spacing: 0.1em;
}

.demo-badge span {
  display: inline-block;
  width: 7px;
  height: 7px;
  margin-right: 7px;
  border-radius: 50%;
  background: var(--acid);
  box-shadow: 0 0 12px var(--acid);
}

.demo-header h2 em {
  color: var(--acid);
  font-style: normal;
}

.demo-invite p {
  margin-bottom: 25px;
}

.demo-invite a {
  display: inline-flex;
  align-items: center;
  gap: 18px;
  padding-bottom: 7px;
  border-bottom: 1px solid var(--acid);
  color: #fff;
  font: 500 12px/1 "DM Mono", monospace;
  text-transform: uppercase;
  letter-spacing: 0.08em;
}

.demo-invite a span {
  color: var(--acid);
  font-size: 18px;
  transition: transform 0.2s ease;
}

.demo-invite a:hover span {
  transform: translateY(4px);
}

.scene-name small {
  display: block;
  margin-top: 9px;
  color: #91a39b;
  font: 500 10px/1 "DM Mono", monospace;
  text-transform: uppercase;
  letter-spacing: 0.09em;
  opacity: 0;
  transform: translateY(5px);
  transition: opacity 0.25s ease, transform 0.25s ease;
}

.scene-card:hover .scene-name small,
.scene-card:focus-visible .scene-name small {
  opacity: 1;
  transform: none;
}

.scene-card:focus-visible {
  outline: 2px solid var(--acid);
  outline-offset: -4px;
}

.scene-grid {
  grid-template-columns: repeat(5, 1fr);
}

.scene-card {
  min-height: 270px;
  border-bottom: 1px solid rgba(255, 255, 255, 0.13);
}

.scene-card:nth-child(5n) {
  border-right: 0;
}

.scene-card:nth-child(n + 6) {
  border-bottom: 0;
}

@media (max-width: 900px) {
  .scene-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .scene-card:nth-child(5n) {
    border-right: 1px solid rgba(255, 255, 255, 0.13);
  }

  .scene-card:nth-child(2n) {
    border-right: 0;
  }

  .scene-card:nth-child(n + 6) {
    border-bottom: 1px solid rgba(255, 255, 255, 0.13);
  }

  .scene-card:nth-child(n + 9) {
    border-bottom: 0;
  }
}

@media (max-width: 640px) {
  .demo-badge {
    margin-bottom: 18px;
  }

  .demo-header h2 {
    font-size: clamp(52px, 16vw, 72px);
  }

  .scene-name small {
    opacity: 1;
    transform: none;
  }

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

  .scene-card,
  .scene-card:nth-child(5n),
  .scene-card:nth-child(2n),
  .scene-card:nth-child(n + 9) {
    border-right: 0;
    border-bottom: 1px solid rgba(255, 255, 255, 0.13);
  }

  .scene-card:last-child {
    border-bottom: 0;
  }
}