:root {
  --bg: #f0faf6;
  --surface: #ffffff;
  --surface-soft: #e9f7f1;
  --text: #163229;
  --muted: #4f6d65;
  --border: #cae7dc;
  --primary: #127a5d;
  --primary-soft: #dff4ea;
  --accent: #7a3cf0;
  --shadow: 0 16px 44px rgba(9, 53, 41, 0.12);
}

@media (prefers-color-scheme: dark) {
  :root {
    --bg: #091913;
    --surface: #10241d;
    --surface-soft: #153129;
    --text: #eaf8f2;
    --muted: #b0d4c7;
    --border: #265546;
    --primary: #5fe2b7;
    --primary-soft: #13352a;
    --accent: #c09cff;
    --shadow: 0 20px 52px rgba(0, 0, 0, 0.4);
  }
}

* {
  box-sizing: border-box;
}

html,
body {
  margin: 0;
  padding: 0;
}

body {
  font-family: "Segoe UI", "SF Pro Text", "Helvetica Neue", sans-serif;
  color: var(--text);
  background:
    radial-gradient(
      circle at 10% -8%,
      rgba(18, 122, 93, 0.18) 0,
      transparent 46%
    ),
    radial-gradient(
      circle at 84% -2%,
      rgba(122, 60, 240, 0.12) 0,
      transparent 36%
    ),
    var(--bg);
  line-height: 1.6;
}

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

.page-shell {
  min-height: 100vh;
}

.topbar {
  position: sticky;
  top: 0;
  z-index: 20;
  backdrop-filter: blur(12px);
  background: color-mix(in srgb, var(--bg) 78%, transparent);
  border-bottom: 1px solid color-mix(in srgb, var(--border) 78%, transparent);
}

.topbar-inner {
  max-width: 980px;
  margin: 0 auto;
  padding: 14px 20px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
}

.brand-link {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  text-decoration: none;
}

.brand-logo {
  width: auto;
  height: 28px;
  display: block;
}

.brand-logo-dark {
  display: none;
}

@media (prefers-color-scheme: dark) {
  .brand-logo-light {
    display: none;
  }

  .brand-logo-dark {
    display: block;
  }
}

.brand {
  font-size: 0.86rem;
  font-weight: 700;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--muted);
}

.back-link {
  text-decoration: none;
  font-size: 0.92rem;
  font-weight: 600;
  color: var(--primary);
}

.main {
  max-width: 980px;
  margin: 0 auto;
  padding: 30px 20px 70px;
}

.hero {
  background: linear-gradient(
    145deg,
    var(--surface) 0%,
    var(--surface-soft) 100%
  );
  border: 1px solid var(--border);
  border-top: 3px solid color-mix(in srgb, var(--accent) 34%, var(--primary));
  border-radius: 22px;
  padding: 28px 26px;
  box-shadow: var(--shadow);
}

.hero h1 {
  margin: 0;
  font-size: clamp(1.7rem, 2.7vw, 2.4rem);
  line-height: 1.15;
}

.hero p {
  margin: 10px 0 0;
  color: var(--muted);
}

.policy {
  margin-top: 18px;
  display: grid;
  gap: 12px;
}

.section {
  background: color-mix(in srgb, var(--surface) 92%, var(--bg));
  border: 1px solid var(--border);
  border-radius: 16px;
  padding: 18px 18px;
}

.section h2 {
  margin: 0 0 10px;
  font-size: clamp(1.06rem, 1.4vw, 1.2rem);
  color: var(--primary);
}

.section h3 {
  margin: 14px 0 8px;
  font-size: 1rem;
  color: var(--accent);
}

.section p {
  margin: 9px 0;
}

.section ul,
.section ol {
  margin: 8px 0;
  padding-left: 1.25rem;
}

.section li {
  margin: 4px 0;
}

.meta {
  margin-top: 24px;
  text-align: center;
  color: var(--muted);
  font-size: 0.86rem;
}

@media (max-width: 640px) {
  .topbar-inner {
    padding: 12px 14px;
  }

  .main {
    padding: 20px 12px 52px;
  }

  .hero,
  .section {
    border-radius: 14px;
    padding: 14px;
  }
}