/* Tensorseed landing page. System fonts only, no trackers, no external assets. */

:root {
  --bg: #12140f;
  --bg-card: #1b2016;
  --ink: #efe8d4;
  --muted: #a39a82;
  --accent: #d4a017;
  --leaf: #8fb36a;
  --line: #2d3426;
  --measure: 42rem;
}

* {
  box-sizing: border-box;
}

html {
  color-scheme: dark;
}

body {
  margin: 0;
  background:
    radial-gradient(1200px 500px at 10% -10%, #24301a 0%, transparent 60%),
    var(--bg);
  color: var(--ink);
  font-family: "Segoe UI", system-ui, -apple-system, sans-serif;
  font-size: 1.0625rem;
  line-height: 1.65;
}

.wrap {
  width: min(var(--measure), calc(100% - 2.5rem));
  margin-left: auto;
  margin-right: auto;
}

header {
  padding: 4.5rem 0 2rem;
  border-bottom: 1px solid var(--line);
}

.brand {
  margin: 0 0 0.75rem;
  font-family: ui-monospace, "Cascadia Code", "SF Mono", Menlo, Consolas, monospace;
  font-size: 0.85rem;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--accent);
}

.lede {
  margin: 0;
  font-size: clamp(1.8rem, 4vw, 2.6rem);
  line-height: 1.2;
  font-weight: 600;
  letter-spacing: -0.02em;
  max-width: 18ch;
}

h1, h2 {
  font-family: Georgia, "Iowan Old Style", "Palatino Linotype", Palatino, serif;
  font-weight: 600;
  line-height: 1.25;
  letter-spacing: -0.01em;
}

h1 {
  font-size: 1.5rem;
  margin: 2.5rem 0 1rem;
}

h2 {
  font-size: 1.2rem;
  margin: 0 0 0.6rem;
}

section {
  padding: 0.5rem 0 0.25rem;
}

section > h2 {
  margin-top: 2.25rem;
}

p {
  margin: 0 0 1rem;
  color: var(--ink);
}

p, article p {
  color: #e6dec8;
}

.muted, .pending, footer p {
  color: var(--muted);
}

a {
  color: var(--leaf);
  text-decoration-thickness: 1px;
  text-underline-offset: 0.18em;
}

a:hover {
  color: var(--accent);
}

code {
  font-family: ui-monospace, "Cascadia Code", "SF Mono", Menlo, Consolas, monospace;
  font-size: 0.9em;
  background: #10140c;
  border: 1px solid var(--line);
  border-radius: 0.25rem;
  padding: 0.05em 0.35em;
}

.pending {
  display: inline-block;
  font-family: ui-monospace, "Cascadia Code", "SF Mono", Menlo, Consolas, monospace;
  font-size: 0.92em;
  word-break: break-all;
}

.grid {
  display: grid;
  gap: 1rem;
  margin: 1.5rem 0 0.5rem;
}

@media (min-width: 720px) {
  .grid {
    grid-template-columns: 1fr;
  }
}

article {
  background: var(--bg-card);
  border: 1px solid var(--line);
  border-radius: 0.6rem;
  padding: 1.15rem 1.2rem 0.4rem;
}

footer {
  margin-top: 3rem;
  padding: 1.5rem 0 3rem;
  border-top: 1px solid var(--line);
  font-size: 0.92rem;
}

.page-404 {
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  justify-content: center;
}

.page-404 .code {
  font-family: ui-monospace, "Cascadia Code", "SF Mono", Menlo, Consolas, monospace;
  color: var(--accent);
  letter-spacing: 0.12em;
  margin: 0 0 0.75rem;
}