/*
  Sprout landing-demo · v2 dia 29 (segunda auditoria externa)
  Paleta: soil graphite (#1a1a18) + soil oat (#f3ede4) + signal seed (#c5f26b).
  Sin librerias externas. Mobile-first responsive.
*/

:root {
  --bg: #f3ede4;
  --ink: #1a1a18;
  --muted: #6e665f;
  --seed: #c5f26b;
  --line: #d8cec2;
  --soft: #fffaf2;
  --danger: #b94a3d;
}

* { box-sizing: border-box; }

body {
  margin: 0;
  background: var(--bg);
  color: var(--ink);
  font: 16px/1.55 system-ui, -apple-system, "Segoe UI", sans-serif;
}

a { color: inherit; }

code {
  font-family: "IBM Plex Mono", ui-monospace, "SFMono-Regular", Menlo, monospace;
  font-size: 0.95em;
}

.container {
  max-width: 1120px;
  margin: auto;
  padding: 72px 24px;
}

/* --- Hero --- */
.hero {
  background: #1a1a18;
  color: #f3ede4;
  min-height: 86vh;
}

.nav {
  display: flex;
  gap: 24px;
  align-items: center;
  padding: 24px 32px;
  flex-wrap: wrap;
}

.brand {
  font-weight: 800;
  margin-right: auto;
}

.nav a {
  text-decoration: none;
  color: #f3ede4;
  opacity: 0.85;
}

.nav a:hover { opacity: 1; }

.hero-inner {
  max-width: 980px;
  padding: 11vh 32px 80px;
}

.kicker, .node {
  color: var(--seed);
  text-transform: uppercase;
  letter-spacing: 0.12em;
  font-size: 13px;
}

.hero h1 {
  font-size: clamp(44px, 8vw, 92px);
  line-height: 0.95;
  margin: 20px 0;
  text-wrap: pretty;
  max-width: 840px;
}

.tagline {
  font-size: clamp(21px, 3vw, 34px);
  max-width: 880px;
}

.lede {
  font-size: 20px;
  max-width: 900px;
  color: #dcd3c7;
}

.cta-row {
  display: flex;
  gap: 12px;
  flex-wrap: wrap;
  margin-top: 32px;
}

.btn, button {
  border: 1px solid var(--line);
  border-radius: 999px;
  padding: 12px 18px;
  text-decoration: none;
  background: transparent;
  color: inherit;
  font-weight: 700;
  cursor: pointer;
  font-size: 15px;
  font-family: inherit;
}

button { color: var(--ink); }

.primary {
  background: var(--seed);
  color: #1a1a18;
  border-color: var(--seed);
}

.ghost { opacity: 0.8; }

/* --- Truth section --- */
.truth {
  margin-top: -72px;
  background: var(--soft);
  border: 1px solid var(--line);
  border-radius: 28px;
}

.truth-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 12px;
  margin: 24px 0;
}

.truth-grid div {
  padding: 18px;
  border: 1px solid var(--line);
  border-radius: 18px;
  background: white;
}

.truth-grid strong {
  display: block;
  margin-bottom: 4px;
}

.truth-grid span {
  display: block;
  color: var(--muted);
  font-size: 14px;
}

.note, .muted {
  color: var(--muted);
}

/* --- Demo cards --- */
.cards {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
  margin-top: 24px;
}

.cards article {
  background: var(--soft);
  border: 1px solid var(--line);
  border-radius: 24px;
  padding: 24px;
}

.cards h3 {
  font-size: 26px;
  line-height: 1.1;
  margin: 12px 0;
}

.cards .deep {
  margin-top: 16px;
  font-size: 14px;
}

.cards .deep a {
  color: var(--muted);
  text-decoration: none;
  border-bottom: 1px solid var(--muted);
}

pre {
  padding: 22px;
  border-radius: 18px;
  background: #1a1a18;
  color: var(--seed);
  white-space: pre-wrap;
  min-height: 170px;
  margin-top: 24px;
  font-family: "IBM Plex Mono", ui-monospace, "SFMono-Regular", Menlo, monospace;
  font-size: 14px;
  line-height: 1.5;
}

/* --- Gemma split --- */
.split {
  display: grid;
  grid-template-columns: 1.2fr 0.8fr;
  gap: 40px;
  align-items: start;
}

.split ul {
  padding-left: 22px;
}

.split li {
  margin-bottom: 12px;
}

.split blockquote {
  font-size: 28px;
  line-height: 1.2;
  border-left: 8px solid var(--seed);
  padding-left: 24px;
  margin: 0;
  font-style: italic;
}

/* --- Diagrams --- */
.diagram {
  margin: 32px 0 0;
}

.diagram img {
  width: 100%;
  max-width: 100%;
  height: auto;
  background: white;
  border: 1px solid var(--line);
  border-radius: 18px;
  padding: 18px;
  display: block;
}

.diagram figcaption {
  margin-top: 12px;
  color: var(--muted);
  font-size: 14px;
  font-style: italic;
  text-align: center;
}

/* --- Safety --- */
.safety {
  background: var(--soft);
}

.safety-split {
  display: grid;
  grid-template-columns: 1.4fr 0.9fr;
  gap: 40px;
  align-items: start;
}

.safety ol {
  padding-left: 22px;
}

.safety li {
  margin-bottom: 14px;
}

.safety-split .diagram {
  margin-top: 0;
}

/* --- Inline commands --- */
pre.cmd {
  background: #1a1a18;
  color: var(--seed);
  padding: 16px;
  border-radius: 12px;
  font-size: 12px;
  margin: 12px 0;
  white-space: pre-wrap;
  word-break: break-all;
  min-height: auto;
  margin-top: 12px;
}

.small {
  font-size: 13px;
}

/* --- Footer --- */
footer {
  padding: 32px;
  color: var(--muted);
  text-align: center;
  border-top: 1px solid var(--line);
  font-size: 14px;
}

/* --- Responsive --- */
@media (max-width: 760px) {
  .truth-grid, .cards, .split, .safety-split {
    grid-template-columns: 1fr;
  }
  .hero-inner { padding-top: 6vh; }
  .nav { flex-wrap: wrap; }
  .hero h1 { font-size: 48px; }
  .container { padding: 48px 20px; }
  .truth { margin-top: -40px; border-radius: 20px; }
}