* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  font-family: Inter, -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Arial, sans-serif;
  background: #f4f7f5;
  color: #1f2933;
  line-height: 1.7;
}

.container {
  width: min(900px, calc(100% - 32px));
  margin: 48px auto;
}

.card {
  background: #fff;
  border-radius: 16px;
  padding: 40px;
  box-shadow: 0 8px 30px rgba(0, 0, 0, 0.06);
}

.brand {
  color: #176b45;
  font-weight: 700;
  letter-spacing: 0.01em;
}

h1 {
  margin: 0 0 8px;
  color: #14261d;
  font-size: clamp(30px, 5vw, 42px);
  line-height: 1.2;
}

h2 {
  margin-top: 32px;
  color: #1b3a2c;
  font-size: 21px;
  line-height: 1.3;
}

p {
  margin: 12px 0;
}

.meta {
  color: #66736c;
  font-size: 14px;
  margin-bottom: 28px;
}

a {
  color: #176b45;
}

.nav {
  display: flex;
  flex-wrap: wrap;
  gap: 16px;
  margin-top: 32px;
  padding-top: 24px;
  border-top: 1px solid #e4ebe7;
}

.button {
  display: inline-block;
  padding: 10px 16px;
  border-radius: 10px;
  background: #176b45;
  color: #fff;
  text-decoration: none;
  font-weight: 600;
}

.button.secondary {
  background: #e8f1ec;
  color: #176b45;
}

.notice {
  padding: 16px;
  border-radius: 10px;
  background: #f0f7f3;
  border-left: 4px solid #176b45;
  margin: 20px 0;
}

footer {
  text-align: center;
  color: #66736c;
  font-size: 13px;
  margin: 24px 0 48px;
}

@media (max-width: 640px) {
  .container {
    width: min(100% - 20px, 900px);
    margin: 20px auto;
  }

  .card {
    padding: 24px 20px;
    border-radius: 12px;
  }
}