/* Summiva — minimal site styles. Calm, neutral, readable. */
:root {
  --cream-100: #fbf8f3;
  --sage-100: #e8efe9;
  --sage-500: #6b9080;
  --sage-700: #486659;
  --ink-100: #e7e5e4;
  --ink-300: #a8a29e;
  --ink-500: #57534e;
  --ink-700: #292524;
  --ink-900: #0c0a09;
  --max-width: 720px;
}

* { box-sizing: border-box; }

html, body {
  margin: 0;
  padding: 0;
  font-family: -apple-system, BlinkMacSystemFont, "Inter", "Segoe UI", Roboto, sans-serif;
  background: var(--cream-100);
  color: var(--ink-900);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

main {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 48px 24px 96px;
}

.brand {
  font-size: 28px;
  font-weight: 700;
  color: var(--sage-700);
  margin-bottom: 48px;
  text-decoration: none;
  display: inline-block;
}

h1 {
  font-size: 36px;
  font-weight: 700;
  margin: 0 0 16px;
  letter-spacing: -0.02em;
  color: var(--ink-900);
}

h2 {
  font-size: 22px;
  font-weight: 600;
  margin: 40px 0 12px;
  color: var(--ink-900);
}

h3 {
  font-size: 17px;
  font-weight: 600;
  margin: 24px 0 8px;
  color: var(--ink-700);
}

p, li {
  font-size: 16px;
  color: var(--ink-700);
}

a {
  color: var(--sage-700);
  text-decoration: underline;
  text-underline-offset: 2px;
}

a:hover { color: var(--sage-500); }

ul { padding-left: 20px; }

.muted { color: var(--ink-500); font-size: 14px; }

.lead {
  font-size: 18px;
  color: var(--ink-500);
  margin-bottom: 32px;
}

.callout {
  background: var(--sage-100);
  border-radius: 12px;
  padding: 20px 24px;
  margin: 24px 0;
  border-left: 4px solid var(--sage-500);
}

.callout p { margin: 0; }

footer {
  border-top: 1px solid var(--ink-100);
  margin-top: 64px;
  padding-top: 24px;
  font-size: 14px;
  color: var(--ink-500);
}

footer a { margin-right: 16px; }

.hero {
  text-align: center;
  padding: 64px 0 32px;
}

.hero .emoji { font-size: 72px; margin-bottom: 24px; display: block; }

.hero h1 { font-size: 44px; }
.hero .lead { max-width: 560px; margin: 0 auto 32px; }

.cta {
  display: inline-block;
  padding: 14px 28px;
  background: var(--sage-500);
  color: white;
  border-radius: 999px;
  font-weight: 600;
  text-decoration: none;
}

.cta:hover { background: var(--sage-700); color: white; }

@media (max-width: 600px) {
  main { padding: 32px 20px 64px; }
  h1 { font-size: 28px; }
  .hero h1 { font-size: 32px; }
}