:root {
  --ink: #062421;
  --ink-soft: #1a3a35;
  --muted: #4d635e;
  --paper: #f4faf8;
  --line: rgba(6, 36, 33, 0.1);
  --accent: #00c9a7;
  --font-display: "Unbounded", system-ui, sans-serif;
  --font-body: "Manrope", system-ui, sans-serif;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  padding: 0;
  background:
    radial-gradient(ellipse 80% 50% at 10% -10%, rgba(0, 201, 167, 0.12), transparent 55%),
    radial-gradient(ellipse 60% 40% at 100% 0%, rgba(42, 168, 224, 0.1), transparent 50%),
    var(--paper);
  color: var(--ink);
  font-family: var(--font-body);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

a {
  color: var(--ink);
  font-weight: 650;
  text-decoration-thickness: 1px;
  text-underline-offset: 3px;
}

a:hover {
  color: var(--ink-soft);
}

.page {
  max-width: 720px;
  margin: 0 auto;
  padding: 40px 20px 88px;
}

.page--wide {
  max-width: 920px;
}

.back {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  margin-bottom: 28px;
  font-size: 0.9375rem;
}

.eyebrow {
  margin: 0 0 10px;
  color: var(--muted);
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 0.04em;
  text-transform: uppercase;
}

h1 {
  margin: 0 0 12px;
  font-family: var(--font-display);
  font-size: clamp(1.75rem, 4vw, 2.6rem);
  font-weight: 600;
  line-height: 1.15;
  letter-spacing: -0.02em;
}

.lead {
  margin: 0 0 28px;
  color: var(--muted);
  font-size: 1.0625rem;
  line-height: 1.55;
}

.meta {
  margin: 0 0 32px;
  color: var(--muted);
  font-size: 0.875rem;
}

h2 {
  margin: 2rem 0 0.75rem;
  font-family: var(--font-display);
  font-size: 1.2rem;
  font-weight: 600;
  line-height: 1.3;
}

p,
li {
  color: var(--muted);
}

p {
  margin: 0 0 1rem;
}

ul,
ol {
  margin: 0 0 1.25rem;
  padding-left: 1.2rem;
}

li {
  margin-bottom: 0.45rem;
}

.note {
  margin: 1.5rem 0;
  padding: 14px 16px;
  border-left: 3px solid var(--accent);
  background: rgba(255, 255, 255, 0.65);
  border-radius: 0 12px 12px 0;
}

.note p {
  margin: 0;
  color: var(--ink-soft);
  font-size: 0.9375rem;
}

.dl {
  display: grid;
  gap: 14px;
  margin: 24px 0;
}

.dl div {
  padding-bottom: 14px;
  border-bottom: 1px solid var(--line);
}

.dl dt {
  margin: 0 0 4px;
  color: var(--muted);
  font-size: 0.8125rem;
  font-weight: 650;
}

.dl dd {
  margin: 0;
  color: var(--ink);
  font-size: 1rem;
  font-weight: 650;
}

.card-list {
  display: grid;
  gap: 14px;
  margin: 28px 0;
}

.card-list a {
  display: block;
  padding: 18px 18px;
  border: 1px solid var(--line);
  border-radius: 16px;
  background: rgba(255, 255, 255, 0.72);
  text-decoration: none;
  transition: border-color 0.2s, box-shadow 0.2s, transform 0.2s;
}

.card-list a:hover {
  transform: translateY(-2px);
  border-color: rgba(6, 36, 33, 0.18);
  box-shadow: 0 8px 24px rgba(6, 36, 33, 0.08);
}

.card-list strong {
  display: block;
  margin-bottom: 4px;
  font-size: 1.05rem;
}

.card-list span {
  color: var(--muted);
  font-size: 0.875rem;
  font-weight: 500;
}

.card-list__desc {
  display: block;
  margin-bottom: 12px;
}

.card-list--topics {
  grid-template-columns: 1fr;
}

@media (min-width: 720px) {
  .card-list--topics {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

.topic-list {
  margin: 0;
  padding-left: 1.1rem;
  list-style: disc;
}

.topic-list li {
  margin-bottom: 0.3rem;
  color: var(--muted);
  font-size: 0.8125rem;
  font-weight: 500;
  line-height: 1.4;
}

.topic-list li:last-child {
  margin-bottom: 0;
}

.footer-nav {
  display: flex;
  flex-wrap: wrap;
  gap: 12px 18px;
  margin-top: 40px;
  padding-top: 20px;
  border-top: 1px solid var(--line);
  font-size: 0.875rem;
}

.footer-nav a {
  color: var(--muted);
  font-weight: 600;
  text-decoration: none;
}

.footer-nav a:hover {
  color: var(--ink);
}