:root,
html[data-theme="dark"] {
  --bg: #12171b;
  --bg-2: #1a2228;
  --card: #222b32;
  --desk: #0c1013;
  --line: rgba(200, 208, 212, 0.14);
  --ink: #e8eef0;
  --muted: #9aa6ad;
  --accent: #3d8f8a;
  --accent-dim: rgba(61, 143, 138, 0.18);
  --btn: #3d8f8a;
  --btn-ink: #041012;
  --run: #6fad6a;
  --late: #c48a3a;
  --quiet: #7a8a94;
  --shadow: 0 18px 40px rgba(0, 0, 0, 0.4);
  --serif: "IBM Plex Serif", Georgia, "Times New Roman", serif;
  --sans: "IBM Plex Sans", ui-sans-serif, system-ui, sans-serif;
  color-scheme: dark;
}

html[data-theme="light"] {
  --bg: #e8ecee;
  --bg-2: #f3f5f6;
  --card: #ffffff;
  --desk: #d5dcd3;
  --line: rgba(26, 34, 40, 0.14);
  --ink: #1a2228;
  --muted: #5a656c;
  --accent: #2f6f6b;
  --accent-dim: rgba(47, 111, 107, 0.14);
  --btn: #2f6f6b;
  --btn-ink: #f3f5f6;
  --run: #2f6b38;
  --late: #8a5208;
  --quiet: #5a656c;
  --shadow: 0 18px 40px rgba(26, 34, 40, 0.1);
  color-scheme: light;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  min-height: 100vh;
  background:
    radial-gradient(900px 420px at 100% -10%, var(--accent-dim), transparent 55%),
    linear-gradient(180deg, var(--desk), var(--bg) 32%);
  color: var(--ink);
  font-family: var(--sans);
  font-size: 17px;
  line-height: 1.5;
}
img { display: block; }
button, input, select, textarea { font: inherit; color: inherit; }
button { cursor: pointer; }
a { color: inherit; }
code {
  font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
  font-size: 0.9em;
  background: var(--accent-dim);
  padding: 0.1em 0.35em;
  border-radius: 4px;
}
::selection { background: var(--accent-dim); }

.skip {
  position: absolute;
  left: 12px;
  top: -48px;
  background: var(--ink);
  color: var(--bg);
  padding: 8px 12px;
  z-index: 20;
}
.skip:focus { top: 12px; }

.site-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  flex-wrap: wrap;
  max-width: 1120px;
  margin: 0 auto;
  padding: 18px 20px;
}
.brand {
  display: flex;
  align-items: center;
  gap: 12px;
  text-decoration: none;
}
.brand-name {
  display: block;
  font-weight: 600;
  letter-spacing: -0.01em;
}
.brand-sub {
  display: block;
  font-size: 0.85rem;
  color: var(--muted);
}
.site-nav {
  display: flex;
  align-items: center;
  gap: 14px;
  flex-wrap: wrap;
}
.site-nav a {
  text-decoration: none;
  color: var(--muted);
  font-size: 0.95rem;
}
.site-nav a:hover { color: var(--ink); }
.theme-btn {
  border: 1px solid var(--line);
  background: var(--card);
  color: var(--ink);
  border-radius: 999px;
  padding: 6px 12px;
  font-size: 0.85rem;
}

main { max-width: 1120px; margin: 0 auto; padding: 8px 20px 64px; }

.hero {
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  gap: 28px;
  align-items: start;
  padding: 28px 0 40px;
}
.eyebrow, .kicker, .sample-kicker {
  font-family: var(--serif);
  font-weight: 500;
  color: var(--accent);
  margin: 0 0 10px;
  font-size: 0.95rem;
}
h1 {
  font-family: var(--serif);
  font-weight: 600;
  font-size: clamp(1.85rem, 3.4vw, 2.55rem);
  line-height: 1.15;
  letter-spacing: -0.02em;
  margin: 0 0 16px;
}
.lede { margin: 0 0 20px; color: var(--muted); max-width: 38rem; }
.hero-actions { display: flex; flex-wrap: wrap; gap: 10px; margin-bottom: 14px; }
.fine, .section-fine { color: var(--muted); font-size: 0.9rem; }
.fine a { color: var(--accent); }

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  background: var(--btn);
  color: var(--btn-ink);
  border: none;
  border-radius: 10px;
  padding: 11px 16px;
  font-weight: 600;
  text-decoration: none;
}
.btn:hover { filter: brightness(1.06); }
.btn-ghost {
  background: transparent;
  color: var(--ink);
  border: 1px solid var(--line);
}

/* #sample-board — Prompt 03+ mount. Keep this id stable. */
#sample-board.sample-board,
.sample-board {
  position: sticky;
  top: 16px;
}
.sample-board-frame {
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: 16px;
  padding: 18px;
  box-shadow: var(--shadow);
  min-height: 320px;
}
.sample-title {
  font-family: var(--serif);
  font-weight: 600;
  margin: 0 0 14px;
  font-size: 1.15rem;
}
.sample-docket {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 10px;
}
.sample-docket li {
  display: grid;
  grid-template-columns: 64px 1fr auto;
  gap: 10px;
  align-items: center;
  padding: 10px 12px;
  border: 1px solid var(--line);
  border-radius: 10px;
  background: var(--bg-2);
  font-size: 0.92rem;
}
.bay { color: var(--muted); font-size: 0.8rem; }
.pill {
  font-size: 0.75rem;
  font-weight: 600;
  padding: 3px 8px;
  border-radius: 999px;
  background: var(--accent-dim);
}
.pill.run { color: var(--run); }
.pill.late { color: var(--late); }
.pill.quiet { color: var(--quiet); }
.sample-note {
  margin: 14px 0 0;
  color: var(--muted);
  font-size: 0.85rem;
}

.section { padding: 36px 0 8px; border-top: 1px solid var(--line); }
.section-head { max-width: 40rem; margin-bottom: 22px; }
.section-head h2 {
  font-family: var(--serif);
  font-weight: 600;
  font-size: clamp(1.4rem, 2.4vw, 1.85rem);
  margin: 0 0 10px;
  letter-spacing: -0.015em;
}
.section-head p { margin: 0; color: var(--muted); }

.tour-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 14px;
}
.card {
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: 14px;
  padding: 16px;
}
.card h3 { margin: 0 0 8px; font-size: 1.05rem; }
.card p { margin: 0; color: var(--muted); font-size: 0.95rem; }

.two-col {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 22px;
}
.two-col h3 { margin: 0 0 12px; }
.sheet {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 12px;
}
.sheet li {
  display: grid;
  gap: 4px;
  padding: 12px 14px;
  border: 1px solid var(--line);
  border-radius: 12px;
  background: var(--card);
}
.sheet span { color: var(--muted); font-size: 0.92rem; }

.say-no {
  margin: 22px 0 0;
  padding: 14px 16px;
  border-left: 3px solid var(--accent);
  background: var(--accent-dim);
  border-radius: 0 10px 10px 0;
  color: var(--ink);
  font-size: 0.95rem;
}

.form {
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: 16px;
  padding: 20px;
  box-shadow: var(--shadow);
}
.form-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 14px;
}
.form label {
  display: grid;
  gap: 6px;
  font-size: 0.92rem;
  font-weight: 500;
}
.form label.span { grid-column: 1 / -1; }
.form input,
.form select,
.form textarea {
  width: 100%;
  border: 1px solid var(--line);
  border-radius: 10px;
  background: var(--bg-2);
  padding: 10px 12px;
}
.form input:focus,
.form select:focus,
.form textarea:focus {
  outline: 2px solid var(--accent);
  outline-offset: 1px;
}
.form-row {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 12px;
  margin-top: 16px;
}
.form-status { margin: 0; color: var(--muted); font-size: 0.9rem; }

.site-footer {
  max-width: 1120px;
  margin: 0 auto;
  padding: 28px 20px 48px;
  border-top: 1px solid var(--line);
  color: var(--muted);
  font-size: 0.92rem;
  display: grid;
  gap: 8px;
}
.site-footer a { color: var(--accent); }

@media (max-width: 880px) {
  .hero { grid-template-columns: 1fr; }
  .sample-board { position: static; order: 2; }
  .hero-copy { order: 1; }
  .tour-grid,
  .two-col,
  .form-grid { grid-template-columns: 1fr; }
}