:root {
  --bg: #f4f7f6;
  --surface: #ffffff;
  --accent: #0f7a80;
  --text: #14201d;
  --secondary: #64726e;
  --border: #dce5e2;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font-family: -apple-system, "Segoe UI", Roboto, Inter, Helvetica, Arial,
    sans-serif;
  line-height: 1.6;
}

main {
  max-width: 660px;
  margin: 0 auto;
  padding: 48px 20px 32px;
}

.brand {
  display: flex;
  align-items: center;
  gap: 12px;
}

.brand img {
  width: 56px;
  height: 56px;
  border-radius: 14px;
}

.brand span {
  font-size: 22px;
  font-weight: 700;
  color: var(--accent);
}

h1 {
  font-size: 34px;
  line-height: 1.25;
  margin: 36px 0 12px;
}

h2 {
  font-size: 20px;
  margin: 32px 0 8px;
}

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

.muted {
  color: var(--secondary);
}

ul.principles {
  padding-left: 0;
  list-style: none;
}

ul.principles li {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 14px;
  padding: 12px 16px;
  margin-bottom: 8px;
}

.buttons {
  display: flex;
  gap: 12px;
  flex-wrap: wrap;
  margin: 28px 0;
}

.btn {
  display: inline-block;
  background: var(--accent);
  color: #f2f7f5;
  border-radius: 14px;
  padding: 12px 20px;
  font-weight: 600;
  text-decoration: none;
}

.btn.soon {
  opacity: 0.55;
  cursor: default;
}

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

footer {
  max-width: 660px;
  margin: 0 auto;
  padding: 24px 20px 48px;
  color: var(--secondary);
  font-size: 14px;
  border-top: 1px solid var(--border);
}