:root {
  color-scheme: light;
  --bg: #f3f7f5;
  --surface: #ffffff;
  --text: #172033;
  --muted: #65736f;
  --line: #d9e5e0;
  --mint: #00856f;
  --blue: #2f63c6;
  --navy: #111a2b;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font-family: Arial, Helvetica, sans-serif;
  font-size: 16px;
  line-height: 1.6;
}

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

.site-header {
  background: var(--navy);
  color: #fff;
  border-bottom: 4px solid #275c70;
}

.header-inner,
.page {
  width: min(960px, calc(100% - 32px));
  margin: 0 auto;
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  padding: 22px 0;
}

.brand {
  display: flex;
  align-items: center;
  gap: 12px;
  color: inherit;
  text-decoration: none;
}

.brand-logo {
  display: block;
  width: 188px;
  max-width: 100%;
  height: auto;
}

.brand-subtitle {
  display: block;
  color: #b8c8d6;
  font-size: 14px;
  margin-top: 6px;
}

.nav {
  display: flex;
  gap: 16px;
  flex-wrap: wrap;
}

.nav a {
  color: #fff;
  text-decoration: none;
  font-weight: 700;
}

.page {
  padding: 42px 0 56px;
}

.panel {
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 30px;
  box-shadow: 0 12px 30px rgba(17, 26, 43, 0.06);
}

.hero {
  display: grid;
  grid-template-columns: 1fr;
  gap: 16px;
}

h1,
h2,
h3 {
  line-height: 1.2;
}

h1 {
  margin: 0 0 12px;
  font-size: 36px;
}

h2 {
  margin-top: 34px;
  font-size: 24px;
}

h3 {
  margin-top: 24px;
  font-size: 19px;
}

p,
ul {
  margin-top: 0;
}

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

.actions {
  display: flex;
  gap: 12px;
  flex-wrap: wrap;
  margin-top: 18px;
}

.button {
  display: inline-block;
  border-radius: 6px;
  padding: 10px 14px;
  background: var(--mint);
  color: #fff;
  font-weight: 700;
  text-decoration: none;
}

.button.secondary {
  background: #e7efeb;
  color: var(--text);
}

.site-footer {
  color: var(--muted);
  padding: 28px 0;
  text-align: center;
}

@media (max-width: 640px) {
  .header-inner {
    align-items: flex-start;
    flex-direction: column;
  }

  .panel {
    padding: 22px;
  }

  h1 {
    font-size: 30px;
  }
}