* {
  box-sizing: border-box;
  margin: 0;
}

html,
body {
  min-height: 100vh;
  background: #08080e;
  color: #ddd8d0;
}

body {
  font-family: "Helvetica Neue", Helvetica, Arial, sans-serif;
}

a {
  color: inherit;
}

.page-shell {
  min-height: 100vh;
  padding: 72px 24px 56px;
}

.header {
  text-align: center;
  margin: 0 auto 52px;
  max-width: 920px;
}

.logo {
  font: 300 11px/1 "SF Mono", "Fira Code", "Consolas", monospace;
  text-transform: uppercase;
  letter-spacing: 4px;
  color: rgba(196, 163, 90, 0.5);
  margin-bottom: 20px;
}

.page-title {
  font: 600 42px/1.08 Georgia, Palatino, "Times New Roman", serif;
  color: rgba(255, 255, 255, 0.92);
  margin-bottom: 16px;
  letter-spacing: -0.5px;
}

.page-subtitle {
  font: 400 15px/1.7 "Helvetica Neue", Helvetica, Arial, sans-serif;
  color: rgba(255, 255, 255, 0.32);
}

.demos-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1px;
  width: 100%;
  max-width: 860px;
  margin: 0 auto;
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid rgba(255, 255, 255, 0.06);
  border-radius: 16px;
  overflow: hidden;
}

.demo-card {
  display: flex;
  flex-direction: column;
  justify-content: center;
  min-height: 144px;
  padding: 32px 28px;
  text-decoration: none;
  background: #08080e;
  transition: background 0.2s ease;
}

a.demo-card:hover {
  background: rgba(255, 255, 255, 0.025);
}

.demo-card.is-disabled {
  cursor: default;
}

.demo-tag {
  display: inline-block;
  width: fit-content;
  margin-bottom: 12px;
  padding: 4px 7px;
  border-radius: 4px;
  font: 500 9px/1 "SF Mono", "Fira Code", monospace;
  text-transform: uppercase;
  letter-spacing: 0.8px;
}

.tag-layout {
  background: rgba(100, 200, 255, 0.08);
  color: rgba(100, 200, 255, 0.6);
}

.tag-interactive {
  background: rgba(120, 200, 120, 0.08);
  color: rgba(120, 200, 120, 0.55);
}

.tag-motion {
  background: rgba(196, 163, 90, 0.1);
  color: rgba(196, 163, 90, 0.6);
}

.tag-soon {
  background: rgba(255, 255, 255, 0.05);
  color: rgba(255, 255, 255, 0.3);
}

.demo-name {
  font: 600 17px/1.3 "Helvetica Neue", Helvetica, Arial, sans-serif;
  color: rgba(255, 255, 255, 0.88);
  margin-bottom: 8px;
}

.demo-desc {
  font: 400 13px/1.5 "Helvetica Neue", Helvetica, Arial, sans-serif;
  color: rgba(255, 255, 255, 0.3);
}

.footer-link {
  margin-top: 40px;
  text-align: center;
}

.footer-link--stack {
  display: grid;
  gap: 10px;
}

.footer-link a,
.back-link {
  font: 400 13px/1 "Helvetica Neue", Helvetica, Arial, sans-serif;
  color: rgba(255, 255, 255, 0.2);
  text-decoration: none;
  transition: color 0.15s ease;
}

.footer-link a:hover,
.back-link:hover {
  color: rgba(255, 255, 255, 0.42);
}

.back-link {
  display: inline-block;
  margin-bottom: 26px;
}

.experiment-shell {
  min-height: 100vh;
  padding: 28px 18px 72px;
}

.experiment-header {
  text-align: center;
  margin: 0 auto 24px;
  max-width: 640px;
}

.experiment-title {
  font: 600 24px/1.2 "Helvetica Neue", Helvetica, Arial, sans-serif;
  color: rgba(255, 255, 255, 0.88);
  margin-bottom: 8px;
}

.experiment-subtitle {
  font: 400 13px/1.6 "Helvetica Neue", Helvetica, Arial, sans-serif;
  color: rgba(255, 255, 255, 0.35);
}

@media (max-width: 700px) {
  .page-shell {
    padding: 48px 16px 40px;
  }

  .page-title {
    font-size: 32px;
  }

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

  .demo-card {
    min-height: 108px;
    padding: 24px 20px;
  }
}