:root {
  --bg: #f5efe3;
  --panel: rgba(255, 252, 245, 0.92);
  --ink: #1f2a24;
  --muted: #617066;
  --line: #d9cfbd;
  --accent: #c95c2b;
  --accent-deep: #8f3713;
  --accent-soft: #f3d5c7;
  --match: #dff3db;
  --match-ink: #214423;
  --shadow: 0 20px 50px rgba(55, 43, 16, 0.12);
  --mono: "SFMono-Regular", "Menlo", "Consolas", monospace;
  --sans: "Avenir Next", "Segoe UI", sans-serif;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  font-family: var(--sans);
  color: var(--ink);
  background:
    radial-gradient(circle at top left, rgba(201, 92, 43, 0.12), transparent 24rem),
    radial-gradient(circle at bottom right, rgba(68, 116, 83, 0.12), transparent 28rem),
    linear-gradient(180deg, #fbf7ef 0%, var(--bg) 100%);
}

code,
textarea,
pre {
  font-family: var(--mono);
}

.page-shell {
  max-width: 1480px;
  margin: 0 auto;
  padding: 32px 20px 40px;
}

.hero {
  display: flex;
  align-items: end;
  justify-content: space-between;
  gap: 24px;
  margin-bottom: 24px;
}

.eyebrow {
  margin: 0 0 8px;
  text-transform: uppercase;
  letter-spacing: 0.14em;
  font-size: 0.78rem;
  color: var(--accent-deep);
  font-weight: 700;
}

.hero h1 {
  margin: 0;
  font-size: clamp(2rem, 5vw, 3.5rem);
  line-height: 0.95;
}

.lede {
  margin: 12px 0 0;
  max-width: 54rem;
  color: var(--muted);
  font-size: 1.02rem;
}

.hero-actions {
  display: flex;
  gap: 12px;
}

.hero-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 16px;
}

.meta-link {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 10px 14px;
  border-radius: 999px;
  border: 1px solid rgba(143, 55, 19, 0.18);
  background: rgba(255, 252, 245, 0.9);
  color: var(--accent-deep);
  font-weight: 700;
  text-decoration: none;
}

.meta-link:hover {
  background: white;
}

button {
  border: 0;
  border-radius: 999px;
  padding: 12px 18px;
  font: inherit;
  cursor: pointer;
  transition: transform 160ms ease, background 160ms ease, box-shadow 160ms ease;
}

button:hover {
  transform: translateY(-1px);
}

button.primary {
  background: linear-gradient(135deg, var(--accent) 0%, #df7f3e 100%);
  color: white;
  box-shadow: 0 12px 24px rgba(201, 92, 43, 0.22);
}

button.ghost {
  background: rgba(255, 255, 255, 0.7);
  color: var(--ink);
  border: 1px solid var(--line);
}

.context-strip {
  display: grid;
  grid-template-columns: minmax(0, 1.3fr) minmax(260px, 0.7fr);
  gap: 18px;
  margin-bottom: 18px;
}

.context-card {
  padding: 18px 20px;
  background: rgba(255, 252, 245, 0.84);
  border: 1px solid rgba(217, 207, 189, 0.75);
  border-radius: 22px;
  box-shadow: var(--shadow);
}

.context-card h2 {
  margin: 0;
  font-size: 0.98rem;
}

.context-card p {
  margin: 10px 0 0;
  color: var(--muted);
  line-height: 1.45;
}

.context-card a {
  color: var(--accent-deep);
}

.citation {
  font-size: 0.92rem;
}

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

.resource-links a {
  display: inline-flex;
  align-items: center;
  padding: 6px 10px;
  border-radius: 999px;
  border: 1px solid rgba(143, 55, 19, 0.2);
  background: rgba(255, 255, 255, 0.75);
  text-decoration: none;
  font-size: 0.84rem;
  font-weight: 700;
}

.workspace {
  display: grid;
  grid-template-columns: 280px minmax(0, 1.2fr) minmax(320px, 0.9fr);
  grid-template-areas:
    "examples editor output"
    "examples editor trace";
  gap: 18px;
}

.card {
  background: var(--panel);
  border: 1px solid rgba(217, 207, 189, 0.75);
  border-radius: 24px;
  box-shadow: var(--shadow);
  backdrop-filter: blur(10px);
}

.examples-panel { grid-area: examples; padding: 20px; }
.editor-panel { grid-area: editor; padding: 20px; }
.output-panel { grid-area: output; padding: 20px; }
.trace-panel { grid-area: trace; padding: 20px; }

.section-heading h2 {
  margin: 0;
  font-size: 1.08rem;
}

.section-heading p {
  margin: 6px 0 0;
  color: var(--muted);
  font-size: 0.92rem;
}

.example-list {
  display: grid;
  gap: 10px;
  margin-top: 18px;
}

.example-button {
  width: 100%;
  text-align: left;
  background: white;
  border: 1px solid var(--line);
  border-radius: 18px;
  padding: 14px;
}

.example-button.active {
  background: var(--accent-soft);
  border-color: rgba(201, 92, 43, 0.3);
}

.example-button strong {
  display: block;
  margin-bottom: 6px;
  font-size: 0.96rem;
}

.example-button span {
  color: var(--muted);
  font-size: 0.86rem;
  line-height: 1.35;
}

#editor {
  width: 100%;
  min-height: 560px;
  margin-top: 18px;
  resize: vertical;
  border: 1px solid var(--line);
  border-radius: 18px;
  padding: 16px;
  background: #1d2123;
  color: #f7f3ea;
  font-size: 0.93rem;
  line-height: 1.5;
}

.output {
  min-height: 240px;
  margin: 18px 0 0;
  border-radius: 18px;
  padding: 16px;
  background: #141816;
  color: #d9f2dd;
  overflow: auto;
  white-space: pre-wrap;
}

.trace-table-wrap {
  margin-top: 18px;
  overflow: auto;
  border: 1px solid var(--line);
  border-radius: 18px;
}

.trace-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.9rem;
}

.trace-table th,
.trace-table td {
  padding: 11px 12px;
  border-bottom: 1px solid var(--line);
  text-align: left;
}

.trace-table th {
  position: sticky;
  top: 0;
  background: rgba(255, 252, 245, 0.96);
}

.trace-row.matched {
  background: var(--match);
  color: var(--match-ink);
}

.pill {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 64px;
  padding: 4px 10px;
  border-radius: 999px;
  font-size: 0.78rem;
  font-weight: 700;
}

.pill.yes {
  background: rgba(43, 131, 62, 0.16);
  color: #245e2d;
}

.pill.no {
  background: rgba(113, 126, 118, 0.14);
  color: #56655d;
}

@media (max-width: 1180px) {
  .context-strip {
    grid-template-columns: 1fr;
  }

  .workspace {
    grid-template-columns: 1fr;
    grid-template-areas:
      "examples"
      "editor"
      "output"
      "trace";
  }

  .hero {
    flex-direction: column;
    align-items: start;
  }
}