.runtime-flow-body {
  --foreground: var(--text);
  --background: var(--bg);
  --card: var(--panel);
  --muted-foreground: var(--muted);
  --viz-series-1: #4b84bd;
  --viz-series-2: var(--accent);
  --green: #347b55;
  --blue: #3979b4;
  --purple: #8056a8;
  --orange: #a85d2d;
}

@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) .runtime-flow-body {
    --viz-series-1: #72ace5;
    --green: #78c895;
    --blue: #76afe8;
    --purple: #c099e3;
    --orange: #e7a06c;
  }
}

.runtime-flow-page {
  width: min(var(--landing-wide), calc(100% - 2.5rem));
  margin: 0 auto;
  padding: 3rem 0 7rem;
}

.runtime-flow-intro {
  margin-bottom: 2.75rem;
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(20rem, .9fr);
  column-gap: 4rem;
  align-items: end;
}

.runtime-flow-intro .crumb {
  grid-column: 1 / -1;
  margin-bottom: 1rem;
  display: flex;
  align-items: center;
  gap: .55rem;
  flex-wrap: wrap;
  color: var(--muted);
  font-size: .9rem;
}

.runtime-flow-intro .crumb a {
  color: var(--text);
  font-weight: 650;
  text-decoration: none;
}

.runtime-flow-intro .crumb a:hover { color: var(--accent); }

.runtime-flow-intro .eyebrow { grid-column: 1; }

.runtime-flow-intro h1 {
  grid-column: 1;
  max-width: 16ch;
  margin: 0;
  font-size: clamp(2.4rem, 4vw, 3.5rem);
  line-height: 1.03;
  letter-spacing: -.045em;
}

.runtime-flow-intro .lead {
  grid-column: 2;
  grid-row: 2 / 4;
  max-width: 43rem;
  margin: 0;
  color: var(--muted);
  font-size: 1.05rem;
  line-height: 1.7;
}

.runtime-flow-page .card {
  border: 1px solid var(--border);
  border-radius: 9px;
  background: var(--panel);
}

.runtime-flow-page .btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 2.35rem;
  padding: .45rem .75rem;
  border: 1px solid var(--border);
  border-radius: 5px;
  background: var(--panel);
  color: var(--text);
  font: inherit;
  font-size: .84rem;
  cursor: pointer;
}

.runtime-flow-page .btn:hover { border-color: var(--accent); }
.runtime-flow-page .btn:disabled { cursor: default; opacity: .45; }
.runtime-flow-page .btn-primary {
  border-color: var(--accent);
  background: var(--accent);
  color: var(--bg);
}
.runtime-flow-page .btn-ghost { border-color: transparent; background: transparent; }
.runtime-flow-page .text-small { font-size: .78rem; line-height: 1.4; }

.runtime-flow-page #ptc-mission-flow h2 {
  padding: 0;
  border: 0;
  color: var(--text);
  font-size: clamp(1.65rem, 3vw, 2.35rem);
  line-height: 1.15;
  letter-spacing: -.025em;
  text-transform: none;
}

.runtime-flow-page #ptc-mission-flow h3 {
  color: var(--text);
  font-size: 1.15rem;
  line-height: 1.3;
}

/* The embedded walkthrough was designed for a compact host surface. Keep its
   fixed-position mission boxes compact enough that their copy never clips. */
.runtime-flow-page #ptc-mission-flow .zone {
  padding: 12px 14px;
  line-height: 1.4;
}
.runtime-flow-page #ptc-mission-flow .zone-top { margin-bottom: 8px; }
.runtime-flow-page #ptc-mission-flow .zone > span {
  margin-top: 4px;
  font-size: .9rem;
}
.runtime-flow-page #ptc-mission-flow .ptc-source-trigger {
  min-height: auto;
  padding: .2rem .35rem;
}
.runtime-flow-page #ptc-mission-flow .workflow { height: 128px; }

.runtime-flow-note {
  margin-top: 2rem;
  padding: 1.2rem 1.35rem;
  border-left: 3px solid var(--accent);
  background: var(--code-bg);
  color: var(--muted);
  font-size: .94rem;
  line-height: 1.65;
}
.runtime-flow-note strong { color: var(--text); }

.runtime-flow-actions {
  margin-top: 1.25rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: .75rem;
  flex-wrap: wrap;
}

.runtime-flow-actions a { text-decoration: none; }

@media (max-width: 58rem) {
  .runtime-flow-intro { display: block; }
  .runtime-flow-intro .lead { margin-top: 1.25rem; }
  .runtime-flow-body .product-nav nav a[href="/#examples"],
  .runtime-flow-body .product-nav nav a[href="/#why"] { display: none; }
}

@media (max-width: 52rem) {
  .runtime-flow-page #ptc-mission-flow .stage { min-height: 670px; }
  .runtime-flow-page #ptc-mission-flow .workflow {
    left: 0;
    width: 100%;
    height: 128px;
  }
  .runtime-flow-page #ptc-mission-flow .query,
  .runtime-flow-page #ptc-mission-flow .evidence,
  .runtime-flow-page #ptc-mission-flow .candidate {
    left: 0;
    right: auto;
    width: 100%;
    height: 120px;
  }
  .runtime-flow-page #ptc-mission-flow .query { top: 145px; }
  .runtime-flow-page #ptc-mission-flow .evidence { top: 280px; }
  .runtime-flow-page #ptc-mission-flow .candidate { top: 415px; }
  .runtime-flow-page #ptc-mission-flow .browser,
  .runtime-flow-page #ptc-mission-flow .model,
  .runtime-flow-page #ptc-mission-flow .trace {
    top: 560px;
    width: 31%;
    height: 88px;
  }
  .runtime-flow-page #ptc-mission-flow .browser { left: 0; }
  .runtime-flow-page #ptc-mission-flow .model { left: 34.5%; }
  .runtime-flow-page #ptc-mission-flow .trace { right: 0; }
  .runtime-flow-page #ptc-mission-flow svg { display: none; }
  .runtime-flow-page #ptc-mission-flow .evaluation { grid-template-columns: 1fr; }
  .runtime-flow-page #ptc-mission-flow .code-head {
    align-items: flex-start;
    flex-wrap: wrap;
  }
  .runtime-flow-page #ptc-mission-flow .code-head span { white-space: normal; }
}

@media (max-width: 40rem) {
  .runtime-flow-page { padding: 3rem 0 5rem; }
  .runtime-flow-intro h1 { font-size: clamp(2.4rem, 12vw, 3.6rem); }
  .runtime-flow-actions { align-items: stretch; flex-direction: column; }
  .runtime-flow-body .product-nav nav a[href="https://github.com/andreasronge/ptc_runner"] {
    display: none;
  }
}

@media (max-width: 30rem) {
  .runtime-flow-page #ptc-mission-flow .stage { min-height: 875px; }
  .runtime-flow-page #ptc-mission-flow .workflow { height: 170px; }
  .runtime-flow-page #ptc-mission-flow .query,
  .runtime-flow-page #ptc-mission-flow .evidence,
  .runtime-flow-page #ptc-mission-flow .candidate { height: 135px; }
  .runtime-flow-page #ptc-mission-flow .query { top: 185px; }
  .runtime-flow-page #ptc-mission-flow .browser { top: 330px; }
  .runtime-flow-page #ptc-mission-flow .evidence { top: 415px; }
  .runtime-flow-page #ptc-mission-flow .model { top: 560px; }
  .runtime-flow-page #ptc-mission-flow .candidate { top: 645px; }
  .runtime-flow-page #ptc-mission-flow .trace { top: 790px; }
  .runtime-flow-page #ptc-mission-flow .browser,
  .runtime-flow-page #ptc-mission-flow .model,
  .runtime-flow-page #ptc-mission-flow .trace {
    left: 0;
    right: auto;
    width: 100%;
    height: 64px;
  }
  .runtime-flow-page #ptc-mission-flow .support .zone-top {
    flex-direction: row;
    align-items: center;
  }
  .runtime-flow-page #ptc-mission-flow .controls {
    align-items: flex-end;
    flex-wrap: wrap;
  }
  .runtime-flow-page #ptc-mission-flow .steps { flex-wrap: wrap; }
}