/* lasimessenger.app (D-188 item 8): static, no script, no font or image from
   anywhere else. Light and dark follow the device. */

:root {
  --bg: #f7f7f5;
  --surface: #ffffff;
  --text: #1b1d1f;
  --muted: #5b6068;
  --line: #e2e3e0;
  --accent: #0f6b5c;
  --accent-text: #ffffff;
  --radius: 14px;
  color-scheme: light dark;
}

@media (prefers-color-scheme: dark) {
  :root {
    --bg: #111315;
    --surface: #1a1d20;
    --text: #eceeef;
    --muted: #a3a9b0;
    --line: #2b2f33;
    --accent: #4fc2ab;
    --accent-text: #0b1512;
  }
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font: 17px/1.55 system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
}

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

.wrap {
  max-width: 960px;
  margin: 0 auto;
  padding: 0 16px;
}

header.top {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 8px 24px;
  padding: 20px 0;
}

nav {
  display: flex;
  flex-wrap: wrap;
  gap: 6px 18px;
}

.brand {
  font-weight: 700;
  font-size: 1.25rem;
  color: var(--text);
  text-decoration: none;
  letter-spacing: 0.01em;
}

nav a {
  padding: 4px 0;
  color: var(--muted);
  text-decoration: none;
  font-size: 0.95rem;
  white-space: nowrap;
}

nav a:hover {
  color: var(--text);
}

.hero {
  padding: 48px 0 32px;
}

.hero h1 {
  font-size: clamp(2rem, 5vw, 3rem);
  line-height: 1.15;
  margin: 0 0 16px;
  max-width: 20ch;
}

.hero p {
  font-size: 1.15rem;
  color: var(--muted);
  max-width: 60ch;
  margin: 0 0 24px;
}

.button {
  display: inline-block;
  background: var(--accent);
  color: var(--accent-text);
  padding: 12px 20px;
  border-radius: 999px;
  text-decoration: none;
  font-weight: 600;
}

.button.quiet {
  background: transparent;
  color: var(--accent);
  border: 1px solid var(--line);
}

section {
  padding: 32px 0;
  border-top: 1px solid var(--line);
}

section h1,
section h2 {
  font-size: 1.5rem;
  margin: 0 0 8px;
}

section > p,
section > ul {
  color: var(--muted);
  max-width: 65ch;
}

section > ul {
  padding-left: 20px;
}

.grid {
  display: grid;
  gap: 16px;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  margin-top: 20px;
}

.card {
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 20px;
}

.card h3 {
  margin: 0 0 8px;
  font-size: 1.1rem;
}

.card p,
.card li {
  color: var(--muted);
  margin: 0 0 8px;
}

.card ul {
  padding-left: 18px;
  margin: 8px 0 16px;
}

.price {
  font-weight: 700;
  color: var(--text);
  margin: 8px 0 16px;
}

.note {
  font-size: 0.92rem;
  color: var(--muted);
}

footer {
  border-top: 1px solid var(--line);
  padding: 24px 0 40px;
  color: var(--muted);
  font-size: 0.92rem;
}

footer a {
  margin-right: 16px;
}