/* Snapsack marketing site.
   Deliberately hand-written and dependency-free: three pages that must load fast, outlive
   framework churn, and still render if everything clever fails. */

:root {
  --bg: #0f1115;
  --surface: #181b21;
  --border: #2b303a;
  --text: #f2f4f8;
  --muted: #9aa3b2;
  --accent: #4c9aff;
  --packed: #3ddc97;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font:
    17px/1.65 -apple-system,
    BlinkMacSystemFont,
    'Segoe UI',
    Roboto,
    Helvetica,
    Arial,
    sans-serif;
  -webkit-font-smoothing: antialiased;
}

.wrap {
  max-width: 720px;
  margin: 0 auto;
  padding: 0 24px;
}

header.site {
  border-bottom: 1px solid var(--border);
  background: var(--surface);
}

header.site .wrap {
  display: flex;
  align-items: center;
  justify-content: space-between;
  min-height: 64px;
  gap: 16px;
}

.brand {
  font-size: 19px;
  font-weight: 700;
  color: var(--text);
  text-decoration: none;
  letter-spacing: -0.01em;
}

nav a {
  color: var(--muted);
  text-decoration: none;
  font-size: 15px;
  margin-left: 20px;
}

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

.hero {
  padding: 80px 0 56px;
}

h1 {
  font-size: 44px;
  line-height: 1.15;
  letter-spacing: -0.02em;
  margin: 0 0 16px;
}

.tagline {
  font-size: 20px;
  color: var(--muted);
  margin: 0 0 32px;
}

.cta {
  display: inline-block;
  background: var(--accent);
  color: var(--bg);
  font-weight: 700;
  text-decoration: none;
  padding: 14px 24px;
  border-radius: 12px;
}

.cta.secondary {
  background: transparent;
  color: var(--text);
  border: 1px solid var(--border);
  margin-left: 8px;
}

.note {
  color: var(--muted);
  font-size: 14px;
  margin-top: 16px;
}

.features {
  display: grid;
  gap: 20px;
  padding: 24px 0 80px;
}

@media (min-width: 640px) {
  .features {
    grid-template-columns: 1fr 1fr;
  }
}

.feature {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 20px;
}

.feature h3 {
  margin: 0 0 6px;
  font-size: 17px;
}
.feature p {
  margin: 0;
  color: var(--muted);
  font-size: 15px;
}

article {
  padding: 48px 0 80px;
}
article h1 {
  font-size: 32px;
}
article h2 {
  font-size: 20px;
  margin: 36px 0 8px;
}
article p,
article li {
  color: #d7dce5;
}
article a {
  color: var(--accent);
}
.updated {
  color: var(--muted);
  font-size: 14px;
  margin-top: -8px;
}

footer.site {
  border-top: 1px solid var(--border);
  padding: 28px 0 48px;
  color: var(--muted);
  font-size: 14px;
}

footer.site a {
  color: var(--muted);
  margin-right: 18px;
}