:root {
  --bg: #f3efe6;
  --bg-accent: #dce8db;
  --surface: rgba(255, 252, 246, 0.88);
  --surface-strong: #fffdf8;
  --text: #1f2a24;
  --muted: #5d695f;
  --line: rgba(35, 60, 48, 0.12);
  --brand: #254f3c;
  --brand-soft: #d9ead8;
  --shadow: 0 22px 60px rgba(31, 42, 36, 0.12);
  --radius-xl: 28px;
  --radius-lg: 20px;
  --radius-md: 14px;
}

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

html {
  scroll-behavior: smooth;
}

body {
  font-family: "Segoe UI", Arial, sans-serif;
  background:
    radial-gradient(circle at top, rgba(255, 255, 255, 0.7), transparent 34%),
    linear-gradient(180deg, var(--bg-accent) 0%, var(--bg) 24%, #f7f4ed 100%);
  color: var(--text);
  line-height: 1.75;
  min-height: 100vh;
  padding: 2rem 1rem 4rem;
}

body::before {
  content: "";
  position: fixed;
  inset: 0;
  pointer-events: none;
  background:
    linear-gradient(rgba(255, 255, 255, 0.08), rgba(255, 255, 255, 0.08)),
    repeating-linear-gradient(
      135deg,
      transparent 0,
      transparent 18px,
      rgba(37, 79, 60, 0.025) 18px,
      rgba(37, 79, 60, 0.025) 36px
    );
  z-index: -1;
}

header,
main {
  width: min(100%, 880px);
  margin: 0 auto;
}

header {
  position: relative;
  overflow: hidden;
  background: linear-gradient(135deg, #1f4634 0%, #315f48 55%, #426f56 100%);
  color: #fffdf8;
  padding: 3.5rem 1.5rem 3rem;
  text-align: center;
  border-radius: var(--radius-xl);
  box-shadow: var(--shadow);
  margin-bottom: 1.5rem;
}

header::after {
  content: "";
  position: absolute;
  width: 220px;
  height: 220px;
  right: -70px;
  top: -90px;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.08);
}

header h1 {
  font-size: clamp(2rem, 4vw, 3.2rem);
  font-weight: 800;
  letter-spacing: -0.04em;
  margin-bottom: 0.5rem;
  position: relative;
}

header p {
  color: white;
  font-size: 1rem;
  opacity: 0.86;
  max-width: 32rem;
  margin: 0 auto;
  position: relative;
}

main {
  padding: 0 0.25rem;
}

section {
  background: var(--surface);
  backdrop-filter: blur(12px);
  border: 1px solid rgba(255, 255, 255, 0.5);
  border-radius: var(--radius-lg);
  padding: 1.6rem;
  margin-bottom: 1rem;
  box-shadow: 0 10px 30px rgba(31, 42, 36, 0.06);
  transition: transform 0.2s ease, box-shadow 0.2s ease;
}

section:hover {
  transform: translateY(-2px);
  box-shadow: 0 18px 38px rgba(31, 42, 36, 0.1);
}

h2 {
  font-size: 1.08rem;
  font-weight: 800;
  color: var(--brand);
  margin-bottom: 1rem;
  padding-bottom: 0.75rem;
  border-bottom: 1px solid var(--line);
  display: flex;
  align-items: center;
  gap: 0.75rem;
}

h2::before {
  content: "";
  width: 0.85rem;
  height: 0.85rem;
  border-radius: 999px;
  background: linear-gradient(135deg, var(--brand) 0%, #5e8c72 100%);
  box-shadow: 0 0 0 6px var(--brand-soft);
  flex: none;
}

p {
  margin-bottom: 0.9rem;
  color: var(--text);
}

p:last-child {
  margin-bottom: 0;
}

ul {
  margin: 0.75rem 0 1rem 1.15rem;
  padding-left: 0.35rem;
}

li {
  margin-bottom: 0.55rem;
  padding-left: 0.2rem;
}

strong {
  color: #173427;
}

a {
  color: var(--brand);
  font-weight: 600;
  text-underline-offset: 0.18em;
}

a:hover {
  color: #163426;
}

.updated {
  text-align: center;
  font-size: 0.92rem;
  color: var(--muted);
  margin-top: 2rem;
  padding: 1rem 1.25rem;
  background: var(--surface-strong);
  border: 1px solid var(--line);
  border-radius: var(--radius-md);
  box-shadow: 0 8px 24px rgba(31, 42, 36, 0.05);
}

@media (max-width: 640px) {
  body {
    padding: 1rem 0.75rem 2.5rem;
  }

  header {
    padding: 2.5rem 1.2rem 2.25rem;
    border-radius: 22px;
  }

  section {
    padding: 1.25rem;
  }

  h2 {
    font-size: 1rem;
    gap: 0.6rem;
  }
}