.hero-col {
  grid-column: 4 / span 8;
  padding-top: clamp(56px, 11vh, 140px);
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(18px, 2.4vh, 26px);
  justify-items: start;
}

.hero-title {
  font-size: var(--step-head);
  font-weight: 600;
  max-width: 15em;
}

:root:lang(en) .hero-title {
  max-width: 14em;
}

.lines .line {
  display: block;
  overflow: hidden;
  padding-bottom: 0.1em;
  margin-bottom: -0.1em;
}

.lines [data-line] {
  display: block;
}

.hero-sub {
  font-size: var(--step-lead);
  line-height: 1.6;
  color: var(--muted);
  max-width: 34em;
}

:root:lang(en) .hero-sub {
  line-height: 1.45;
  max-width: 30em;
}

.hero-actions {
  display: grid;
  gap: 10px;
  justify-items: start;
  width: 100%;
  max-width: 860px;
  margin-top: 6px;
}

.cmdrow {
  display: flex;
  width: 100%;
  background: var(--surface);
  border-radius: var(--radius);
}

.cmdrow code {
  flex: 1;
  min-width: 0;
  display: block;
  align-self: center;
  padding: 13px 16px;
  background: none;
  font-size: var(--ui);
  line-height: 1.5;
  white-space: pre-wrap;
  overflow-wrap: anywhere;
}

.cmdrow code .p {
  color: var(--muted);
  user-select: none;
  margin-right: 0.6em;
}

.cmdrow .btn {
  border-radius: 0 var(--radius) var(--radius) 0;
}

.hero-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 4px 20px;
  align-items: center;
}

.copied {
  font-size: var(--step-small);
  color: var(--ok);
  opacity: 0;
  transition: opacity var(--t-ui) ease;
}

.copied.is-on {
  opacity: 1;
}

.hero-demo {
  grid-column: 4 / -1;
  margin-top: clamp(40px, 7vh, 80px);
}

[data-ui].demo {
  background: var(--surface);
  border-radius: 8px;
  overflow: hidden;
  font-size: var(--ui);
  line-height: 1.7;
}

:root:lang(en) [data-ui].demo {
  line-height: 1.55;
}

[data-ui] .demo-bar {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 10px 18px;
  padding: 14px 18px;
}

[data-ui] .demo-cap {
  color: var(--muted);
  font-size: var(--ui-s);
}

[data-ui] .demo-main {
  display: grid;
  grid-template-columns: minmax(0, 1.7fr) minmax(0, 1fr);
}

[data-ui] .chat {
  padding: 4px 18px 22px;
  display: grid;
  gap: 16px;
  align-content: start;
}

[data-ui] .who {
  font-size: var(--ui-s);
  font-weight: 600;
  color: var(--muted);
  margin-bottom: 4px;
}

[data-ui] .bubble {
  background: var(--bg);
  border-radius: 8px;
  padding: 12px 14px;
}

[data-ui] .reply {
  display: grid;
  gap: 10px;
  align-content: start;
}

[data-ui] .reply pre {
  background: var(--code-bg);
  border-radius: 6px;
  padding: 10px 12px;
  white-space: pre-wrap;
  overflow-wrap: anywhere;
  line-height: 1.65;
}

[data-ui] .reply .opt {
  font-weight: 600;
  margin-top: 4px;
}

[data-ui] .reply .meta {
  color: var(--muted);
  font-size: var(--ui-s);
}

[data-ui] .reply ul {
  display: grid;
  gap: 2px;
  padding-left: 0;
}

[data-ui] .reply li {
  padding-left: 1em;
  text-indent: -1em;
}

[data-ui] .flag {
  text-decoration: underline wavy var(--bad);
  text-decoration-thickness: 1px;
  text-underline-offset: 4px;
  text-decoration-skip-ink: none;
}

[data-ui] .reply .more {
  color: var(--muted);
  font-size: var(--ui-s);
}

[data-ui] .grader {
  background: var(--surface-2);
  padding: 18px;
  display: grid;
  gap: 14px;
  align-content: start;
}

[data-ui] .score-num {
  font-size: var(--step-head);
  line-height: 1;
  letter-spacing: -0.02em;
  font-variant-numeric: tabular-nums;
}

[data-ui] .score-num span {
  color: var(--muted);
}

[data-ui] .score-label {
  color: var(--muted);
  font-size: var(--ui-s);
  margin-top: 6px;
}

[data-ui] .checks {
  display: grid;
  gap: 9px;
  margin-top: 14px;
}

[data-ui] .checks li {
  display: grid;
  grid-template-columns: 18px minmax(0, 1fr);
  gap: 8px;
  align-items: start;
  line-height: 1.5;
}

[data-ui] .checks li svg {
  width: 18px;
  height: 18px;
  margin-top: 1px;
}

[data-ui] .checks .pass svg {
  color: var(--ok);
}

[data-ui] .checks .fail svg {
  color: var(--bad);
}

[data-ui] .checks .fail>span {
  font-weight: 600;
}

[data-ui] .checks small {
  display: block;
  color: var(--muted);
  font-size: var(--ui-s);
  margin-top: 2px;
}

[data-ui] .grader-link {
  font-size: var(--ui-s);
  font-weight: 600;
}

[data-ui] .checks-sum {
  display: none;
  margin-top: 10px;
  color: var(--muted);
  font-size: var(--ui-s);
}

.tools {
  padding-block: clamp(96px, 11vw, 150px);
}

.tools-row {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  justify-content: space-between;
  gap: 14px clamp(18px, 2.2vw, 36px);
}

.tools-row::after {
  content: "";
  flex: auto;
}

.tools-lead {
  font-size: var(--step-body);
  color: var(--muted);
}

.tools-row a {
  font-size: var(--step-lead);
  font-weight: 600;
  text-decoration: none;
  white-space: nowrap;
}

@media (hover: hover) and (pointer: fine) {
  .tools-row a:hover {
    text-decoration: underline;
    text-decoration-thickness: 0.06em;
    text-underline-offset: 0.22em;
  }
}

@media (max-width: 1023px) {

  .hero-col,
  .hero-demo {
    grid-column: 1 / -1;
  }
}

@media (max-width: 860px) {
  [data-ui] .demo-main {
    grid-template-columns: minmax(0, 1fr);
  }
}

@media (max-width: 640px) {
  .cmdrow {
    flex-direction: column;
  }

  .cmdrow .btn {
    border-radius: 0 0 var(--radius) var(--radius);
  }

  .tools-row {
    justify-content: flex-start;
  }

  .tools-lead {
    flex-basis: 100%;
  }

  [data-ui] .opt-b {
    display: none;
  }

  [data-ui] .checks li.pass {
    display: none;
  }

  [data-ui] .checks-sum {
    display: block;
  }

  [data-ui] .checks {
    margin-top: 8px;
  }
}