.index-page {
  background: var(--bg);
}

.index-header {
  align-items: baseline;
  flex-wrap: wrap;
}

.index-shell {
  width: min(1180px, calc(100% - 48px));
  margin: 34px auto 42px;
}

.index-intro,
.index-section {
  margin-bottom: 28px;
}

.index-intro {
  display: flex;
  justify-content: space-between;
  align-items: end;
  gap: 28px;
  border-bottom: 1px solid var(--border);
  padding-bottom: 18px;
}

.index-intro h2,
.section-heading h2 {
  font-size: 1.52rem;
  font-weight: 500;
  line-height: 1.18;
}

.index-intro p:last-child {
  max-width: 560px;
  color: var(--muted);
  font-size: 0.98rem;
}

.index-kicker,
.applet-kind {
  font-family: "JetBrains Mono", Consolas, monospace;
  text-transform: uppercase;
  letter-spacing: 0.08em;
}

.index-kicker {
  color: var(--accent);
  font-size: 0.72rem;
  margin-bottom: 5px;
}

.applet-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(min(100%, 320px), 1fr));
  gap: 22px;
}

.applet-grid.masonry-grid {
  align-items: flex-start;
  display: flex;
}

.masonry-column {
  display: flex;
  flex: 1 1 0;
  flex-direction: column;
  gap: 22px;
  min-width: 0;
}

.masonry-column > .applet-card {
  width: 100%;
}

@media (min-width: 1120px) {
  .applet-grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
}

.applet-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 4px;
  box-shadow: var(--shadow);
  overflow: hidden;
  display: flex;
  flex-direction: column;
  min-width: 0;
}

.demo-strip {
  background: #fffdf8;
  border-bottom: 1px solid var(--border);
  padding: 12px;
}

.demo-frame {
  position: relative;
  aspect-ratio: 16 / 9;
  border: 1px solid var(--border);
  border-radius: 3px;
  background:
    linear-gradient(0deg, rgba(216, 208, 196, 0.22), rgba(216, 208, 196, 0.22)),
    #fffdf8;
  overflow: hidden;
}

.demo-frame object {
  display: block;
  width: 100%;
  height: 100%;
}

.demo-frame span {
  position: absolute;
  inset: 0;
  display: grid;
  place-items: center;
  padding: 18px;
  color: var(--muted);
  font-family: "JetBrains Mono", Consolas, monospace;
  font-size: 0.74rem;
  line-height: 1.45;
  text-align: center;
  word-break: break-word;
}

.applet-body {
  display: flex;
  flex: 1;
  flex-direction: column;
  gap: 10px;
  padding: 17px 18px 18px;
}

.applet-kind {
  color: var(--accent);
  font-size: 0.68rem;
}

.applet-body h3 {
  font-size: 1.2rem;
  font-weight: 500;
  line-height: 1.2;
}

.applet-body p:not(.applet-kind) {
  color: var(--muted);
  font-size: 0.95rem;
}

.applet-link {
  align-self: flex-start;
  margin-top: auto;
  border: 1px solid var(--accent);
  border-radius: 3px;
  color: var(--accent);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 34px;
  padding: 6px 12px;
  font-family: "JetBrains Mono", Consolas, monospace;
  font-size: 0.72rem;
  letter-spacing: 0.04em;
  text-decoration: none;
}

.applet-link:hover,
.applet-link:focus {
  background: var(--accent);
  color: var(--surface);
}

.section-heading {
  margin: 36px 0 18px;
}

.split-heading {
  display: flex;
  justify-content: space-between;
  align-items: end;
  gap: 28px;
}

.split-heading > p {
  max-width: 620px;
  color: var(--muted);
  font-size: 0.96rem;
}

.reference-section {
  margin-top: 36px;
}

.reference-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(min(100%, 280px), 1fr));
  gap: 16px;
}

@media (min-width: 1060px) {
  .wide-reference {
    grid-column: span 2;
  }
}

.reference-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 4px;
  box-shadow: var(--shadow);
  display: flex;
  flex-direction: column;
  gap: 10px;
  min-width: 0;
  padding: 17px 18px 18px;
}

.reference-card h3 {
  font-size: 1.08rem;
  font-weight: 500;
  line-height: 1.22;
}

.reference-card p:not(.applet-kind) {
  color: var(--muted);
  font-size: 0.93rem;
}

.reference-card a {
  color: var(--accent);
  font-family: "JetBrains Mono", Consolas, monospace;
  font-size: 0.72rem;
  letter-spacing: 0.04em;
  margin-top: auto;
  text-decoration: none;
}

.reference-card a:hover,
.reference-card a:focus {
  text-decoration: underline;
}

.reference-links {
  display: flex;
  flex-wrap: wrap;
  gap: 10px 14px;
  margin-top: auto;
}

.reference-links a {
  margin-top: 0;
}

.atlas-card {
  background: #fbf8f2;
}

.compact-grid {
  grid-template-columns: repeat(auto-fit, minmax(min(100%, 300px), 1fr));
}

.compact-card .applet-body {
  padding-bottom: 17px;
}

.index-footer {
  color: var(--muted);
  text-align: center;
  font-size: 0.9rem;
  margin: 24px 0 38px;
}

@media (max-width: 720px) {
  .index-shell {
    width: min(100% - 28px, 1180px);
    margin-top: 24px;
  }

  .index-intro {
    align-items: start;
    flex-direction: column;
    gap: 10px;
  }

  .split-heading {
    align-items: start;
    flex-direction: column;
    gap: 10px;
  }

  .index-header {
    padding: 19px 22px;
  }
}