* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

body {
  font-family: Georgia, "Times New Roman", serif;
  background: linear-gradient(180deg, #e8f5e9 0%, #f7faf7 40%, #fff8e7 100%);
  color: #24302a;
  line-height: 1.7;
  min-height: 100vh;
}

.container {
  width: min(860px, 92%);
  margin: 0 auto;
}

.header {
  background: linear-gradient(135deg, #2e7d32, #66bb6a);
  color: #fff;
  padding: 2.5rem 0 2rem;
  box-shadow: 0 4px 18px rgba(46, 125, 50, 0.25);
}

.header h1 {
  font-size: clamp(1.8rem, 4vw, 2.4rem);
  letter-spacing: 0.02em;
}

.subtitle {
  margin-top: 0.35rem;
  opacity: 0.95;
  font-size: 1.1rem;
}

main {
  padding: 2rem 0 3rem;
}

.updated {
  margin-bottom: 1.5rem;
  color: #5b6b62;
  font-size: 0.95rem;
}

section {
  background: rgba(255, 255, 255, 0.72);
  border: 1px solid rgba(46, 125, 50, 0.12);
  border-radius: 14px;
  padding: 1.25rem 1.4rem;
  margin-bottom: 1rem;
  backdrop-filter: blur(4px);
}

h2 {
  font-size: 1.2rem;
  color: #1b5e20;
  margin-bottom: 0.65rem;
}

p {
  margin-bottom: 0.75rem;
}

ul {
  margin: 0.4rem 0 0.8rem 1.25rem;
}

li {
  margin-bottom: 0.4rem;
}

a {
  color: #2e7d32;
  font-weight: 600;
}

.footer {
  border-top: 1px solid rgba(46, 125, 50, 0.15);
  padding: 1.25rem 0 2rem;
  color: #5b6b62;
  font-size: 0.95rem;
}

.footer .container {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 1rem;
  flex-wrap: wrap;
}

#back-to-top {
  appearance: none;
  border: none;
  background: #2e7d32;
  color: #fff;
  padding: 0.55rem 1rem;
  border-radius: 999px;
  cursor: pointer;
  font: inherit;
}

#back-to-top:hover {
  background: #1b5e20;
}

@media (max-width: 560px) {
  section {
    padding: 1rem;
  }
}