:root {
  color-scheme: light;
  --bg: #f7f4ee;
  --card: rgba(255, 255, 255, 0.86);
  --text: #18211c;
  --muted: #5c665f;
  --green: #104729;
  --green-soft: #dce8df;
  --border: rgba(24, 33, 28, 0.12);
  --shadow: 0 24px 70px rgba(29, 43, 34, 0.12);
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  min-height: 100vh;
  background:
    radial-gradient(circle at 78% 12%, rgba(116, 142, 92, 0.18), transparent 34%),
    linear-gradient(135deg, #fbfaf7 0%, var(--bg) 100%);
  color: var(--text);
  font-family: ui-serif, Georgia, "Times New Roman", serif;
}

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

.shell {
  width: min(920px, calc(100% - 32px));
  margin: 0 auto;
  padding: 56px 0;
}

.topbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  margin-bottom: 24px;
}

.brand {
  display: flex;
  align-items: center;
  gap: 12px;
  color: var(--green);
  font-size: 24px;
  font-weight: 700;
  letter-spacing: -0.02em;
}

.mark {
  display: grid;
  width: 40px;
  height: 40px;
  place-items: center;
  border: 2px solid var(--green);
  border-radius: 999px;
  font-size: 20px;
}

.language {
  border: 1px solid var(--border);
  border-radius: 999px;
  background: var(--card);
  color: var(--muted);
  padding: 9px 14px;
  font: 600 14px ui-sans-serif, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
}

.card {
  overflow: hidden;
  border: 1px solid var(--border);
  border-radius: 30px;
  background: var(--card);
  box-shadow: var(--shadow);
  backdrop-filter: blur(18px);
}

.hero {
  padding: 42px 44px 28px;
  border-bottom: 1px solid var(--border);
  background:
    linear-gradient(135deg, rgba(255, 255, 255, 0.72), rgba(240, 246, 239, 0.66)),
    radial-gradient(circle at 92% 0%, rgba(16, 71, 41, 0.11), transparent 34%);
}

h1 {
  margin: 0;
  color: var(--green);
  font-size: clamp(38px, 6vw, 68px);
  line-height: 0.95;
  letter-spacing: -0.045em;
}

.subtitle {
  max-width: 640px;
  margin: 18px 0 0;
  color: var(--muted);
  font: 400 18px/1.55 ui-sans-serif, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
}

.content {
  padding: 36px 44px 44px;
  font: 400 17px/1.72 ui-sans-serif, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
}

.content h2 {
  margin: 32px 0 10px;
  color: var(--green);
  font-size: 18px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.content h2:first-child {
  margin-top: 0;
}

.content p {
  margin: 0 0 14px;
}

.content ul {
  margin: 0 0 18px;
  padding-left: 22px;
}

.content li {
  margin: 7px 0;
}

.notice {
  margin-top: 24px;
  padding: 18px 20px;
  border: 1px solid rgba(16, 71, 41, 0.18);
  border-radius: 20px;
  background: var(--green-soft);
  color: var(--green);
  font-weight: 650;
}

.footer {
  margin-top: 22px;
  color: var(--muted);
  font: 500 13px/1.5 ui-sans-serif, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  text-align: center;
}

.support-box {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 72px;
  margin: 18px 0 8px;
  padding: 0 24px;
  border-radius: 20px;
  background: var(--green);
  color: white;
  font-size: clamp(22px, 4vw, 34px);
  font-weight: 750;
  text-decoration: none;
  letter-spacing: -0.02em;
}

@media (max-width: 620px) {
  .shell {
    width: min(100% - 20px, 920px);
    padding: 24px 0;
  }

  .topbar {
    align-items: flex-start;
    flex-direction: column;
  }

  .hero,
  .content {
    padding-left: 22px;
    padding-right: 22px;
  }
}