:root {
  color-scheme: light;
  --bg: #f7f8fb;
  --card: #ffffff;
  --ink: #172033;
  --muted: #5b667a;
  --line: #dde3ee;
  --primary: #0f766e;
  --primary-dark: #115e59;
  --accent: #f59e0b;
  --shadow: 0 18px 50px rgba(18, 28, 45, 0.08);
}

* {
  box-sizing: border-box;
}

html {
  font-family:
    Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI",
    sans-serif;
  line-height: 1.6;
}

body {
  background:
    radial-gradient(circle at top left, rgba(15, 118, 110, 0.12), transparent 34rem),
    var(--bg);
  color: var(--ink);
  margin: 0;
}

a {
  color: var(--primary);
  text-decoration: none;
}

a:hover {
  color: var(--primary-dark);
  text-decoration: underline;
}

.site-header,
.site-footer {
  margin: 0 auto;
  max-width: 960px;
  padding: 28px 20px;
}

.site-header {
  align-items: center;
  display: flex;
  gap: 18px;
  justify-content: space-between;
}

.brand {
  color: var(--ink);
  font-size: 17px;
  font-weight: 800;
  letter-spacing: -0.02em;
}

.nav {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
}

.nav a {
  color: var(--muted);
  font-size: 14px;
  font-weight: 700;
}

main {
  margin: 0 auto;
  max-width: 960px;
  padding: 16px 20px 64px;
}

.hero,
.card {
  background: rgba(255, 255, 255, 0.9);
  border: 1px solid var(--line);
  border-radius: 24px;
  box-shadow: var(--shadow);
}

.hero {
  padding: 44px;
}

.card {
  margin-top: 18px;
  padding: 28px;
}

.eyebrow {
  color: var(--primary);
  font-size: 13px;
  font-weight: 900;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

h1,
h2,
h3 {
  line-height: 1.2;
  margin: 0;
}

h1 {
  font-size: clamp(34px, 7vw, 58px);
  letter-spacing: -0.05em;
  margin-top: 10px;
}

h2 {
  font-size: 24px;
  letter-spacing: -0.03em;
  margin-bottom: 14px;
}

h3 {
  font-size: 18px;
  margin-top: 22px;
}

p {
  color: var(--muted);
  margin: 12px 0 0;
}

ul {
  color: var(--muted);
  margin: 12px 0 0;
  padding-left: 22px;
}

li + li {
  margin-top: 6px;
}

.app-list {
  display: grid;
  gap: 14px;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  margin-top: 18px;
}

.app-tile {
  background: #f9fbfd;
  border: 1px solid var(--line);
  border-radius: 18px;
  display: block;
  padding: 20px;
}

.app-tile strong {
  color: var(--ink);
  display: block;
  font-size: 18px;
}

.meta {
  color: var(--muted);
  font-size: 14px;
  margin-top: 8px;
}

.button-row {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 24px;
}

.button {
  background: var(--primary);
  border-radius: 999px;
  color: #fff;
  display: inline-flex;
  font-weight: 800;
  padding: 11px 18px;
}

.button.secondary {
  background: #e6f4f2;
  color: var(--primary-dark);
}

.button:hover {
  color: #fff;
  text-decoration: none;
}

.button.secondary:hover {
  color: var(--primary-dark);
}

.notice {
  background: #fffbeb;
  border: 1px solid #fde68a;
  border-radius: 16px;
  color: #704e05;
  margin-top: 18px;
  padding: 14px 16px;
}

.site-footer {
  border-top: 1px solid var(--line);
  color: var(--muted);
  font-size: 13px;
}

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

  .hero,
  .card {
    border-radius: 20px;
    padding: 24px;
  }
}