/* umatter landing — stylesheet.
   Cache-busting: this file is referenced as /styles.css?v=YYYY-MM-DD.N from
   every HTML page. After editing, bump the version in each page so visitors
   don't get a stale cached copy (see Cache-Control in public/_headers). */

:root {
  color-scheme: light dark;
  --bg: #ffffff;
  --text: #111111;
  --text-muted: #6b6b6b;
  --accent: #111111;
}

@media (prefers-color-scheme: dark) {
  :root {
    --bg: #111111;
    --text: #f5f5f5;
    --text-muted: #9a9a9a;
    --accent: #f5f5f5;
  }
}

*,
*::before,
*::after {
  box-sizing: border-box;
}

html,
body {
  margin: 0;
  min-height: 100%;
}

body {
  background: var(--bg);
  color: var(--text);
  font-family: system-ui, -apple-system, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  line-height: 1.5;
  -webkit-font-smoothing: antialiased;
}

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

/* Placeholder layout: centred wordmark + one line of copy. */
.placeholder {
  min-height: 100vh;
  min-height: 100dvh;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  text-align: center;
  padding: 24px;
  gap: 8px;
}

.placeholder h1 {
  margin: 0;
  font-size: clamp(32px, 6vw, 56px);
  font-weight: 700;
  letter-spacing: -0.02em;
}

.placeholder p {
  margin: 0;
  color: var(--text-muted);
  font-size: 18px;
}

.eyebrow {
  font-size: 14px;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}