:root {
  --paper: #f6f7f4;
  --card: #ffffff;
  --ink: #14201a;
  --ink-soft: #4a5850;
  --ink-faint: #7d8b83;
  --line: #e2e7e0;
  --accent: #12a26a;
  --accent-deep: #0c7d52;
  --accent-wash: #e7f4ee;
  --accent-ink: #0a5c3d;
  --shadow: 0 1px 2px rgba(20, 32, 26, .05), 0 12px 32px -12px rgba(20, 32, 26, .14);
  --radius: 14px;
}

@media (prefers-color-scheme: dark) {
  :root {
    --paper: #0d1310;
    --card: #141c17;
    --ink: #eaf1ec;
    --ink-soft: #a7b6ad;
    --ink-faint: #6f8078;
    --line: #23302a;
    --accent: #2bc584;
    --accent-deep: #33d68f;
    --accent-wash: #17281f;
    --accent-ink: #7ee6b6;
    --shadow: 0 1px 2px rgba(0, 0, 0, .4), 0 18px 40px -14px rgba(0, 0, 0, .6);
  }
}

:root[data-theme="light"] {
  --paper: #f6f7f4;
  --card: #ffffff;
  --ink: #14201a;
  --ink-soft: #4a5850;
  --ink-faint: #7d8b83;
  --line: #e2e7e0;
  --accent: #12a26a;
  --accent-deep: #0c7d52;
  --accent-wash: #e7f4ee;
  --accent-ink: #0a5c3d;
  --shadow: 0 1px 2px rgba(20, 32, 26, .05), 0 12px 32px -12px rgba(20, 32, 26, .14);
}

:root[data-theme="dark"] {
  --paper: #0d1310;
  --card: #141c17;
  --ink: #eaf1ec;
  --ink-soft: #a7b6ad;
  --ink-faint: #6f8078;
  --line: #23302a;
  --accent: #2bc584;
  --accent-deep: #33d68f;
  --accent-wash: #17281f;
  --accent-ink: #7ee6b6;
  --shadow: 0 1px 2px rgba(0, 0, 0, .4), 0 18px 40px -14px rgba(0, 0, 0, .6);
}

* { box-sizing: border-box; }
html, body { margin: 0; }
img, svg, table { max-width: 100%; }
body {
  background: var(--paper);
  color: var(--ink);
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  -webkit-font-smoothing: antialiased;
  line-height: 1.6;
}

.page {
  background: var(--paper);
  color: var(--ink);
  padding: clamp(20px, 5vw, 56px) clamp(16px, 5vw, 40px);
  min-height: 100vh;
}
.wrap { max-width: 940px; margin: 0 auto; }

.balloon {
  width: 30px;
  height: 30px;
  border-radius: 9px;
  background: linear-gradient(150deg, var(--accent), var(--accent-deep));
  display: grid;
  place-items: center;
  color: #fff;
  font-size: 17px;
  flex: none;
}

.nav {
  position: sticky;
  top: 10px;
  z-index: 50;
  display: flex;
  align-items: center;
  gap: 14px;
  padding: 11px 16px;
  margin: 0 0 clamp(20px, 4vw, 36px);
  border-radius: 100px;
  backdrop-filter: blur(12px);
  background: color-mix(in srgb, var(--paper) 78%, transparent);
  border: 1px solid var(--line);
}
.nav .logo {
  display: flex;
  align-items: center;
  gap: 9px;
  font-weight: 800;
  font-size: 18px;
  letter-spacing: -.02em;
  color: var(--ink);
  text-decoration: none;
}
.nav .navlinks { display: flex; gap: 22px; margin-left: 16px; }
.nav .navlinks a {
  color: var(--ink-soft);
  text-decoration: none;
  font-size: 14px;
  font-weight: 550;
}
.nav .navlinks a:hover,
.nav .navlinks a[aria-current="page"] { color: var(--ink); }
.nav .navcta { margin-left: auto; }
@media (max-width: 680px) { .nav .navlinks { display: none; } }

.btn-primary {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: var(--accent);
  color: #fff;
  font-weight: 700;
  font-size: 1.02rem;
  padding: 13px 26px;
  border-radius: 100px;
  text-decoration: none;
  box-shadow: 0 6px 18px -6px rgba(18, 162, 106, .5);
  transition: transform .15s ease;
}
.btn-primary:hover { transform: translateY(-1px); }
.nav .btn-primary { font-size: 14px; padding: 9px 18px; }

.crumbs {
  display: flex;
  flex-wrap: wrap;
  gap: 6px 10px;
  font-size: 13px;
  color: var(--ink-faint);
  margin: 0 0 18px;
}
.crumbs a { color: var(--accent-ink); text-decoration: none; font-weight: 600; }
.crumbs a:hover { text-decoration: underline; }

.article, .hub-intro { max-width: 70ch; }
h1, h2, h3 { text-wrap: balance; }
h1 {
  font-size: clamp(1.85rem, 5vw, 2.6rem);
  line-height: 1.12;
  letter-spacing: -.03em;
  margin: 0 0 14px;
  font-weight: 800;
}
.lede {
  font-size: clamp(1.05rem, 2.4vw, 1.22rem);
  color: var(--ink-soft);
  margin: 0 0 28px;
}
h2 {
  font-size: clamp(1.25rem, 3vw, 1.55rem);
  letter-spacing: -.02em;
  font-weight: 750;
  margin: 2em 0 10px;
}
h3 {
  font-size: 1.05rem;
  letter-spacing: -.015em;
  margin: 1.6em 0 8px;
}
.article p, .hub-intro p { color: var(--ink-soft); margin: 0 0 1em; }
.article p strong, .hub-intro p strong { color: var(--ink); font-weight: 650; }
.article ul, .article ol { color: var(--ink-soft); padding-left: 1.2em; margin: 0 0 1.1em; }
.article li { margin: 0.35em 0; }
.article a, .hub-intro a { color: var(--accent-ink); font-weight: 600; }

.kicker {
  font-size: 12px;
  text-transform: uppercase;
  letter-spacing: .16em;
  color: var(--ink-faint);
  font-weight: 700;
  margin: 0 0 10px;
}

.cards {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 16px;
  margin: 28px 0 8px;
}
@media (max-width: 680px) { .cards { grid-template-columns: 1fr; } }
.card {
  display: grid;
  gap: 8px;
  align-content: start;
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: clamp(18px, 3vw, 24px);
  box-shadow: var(--shadow);
  text-decoration: none;
  color: inherit;
}
.card h2 { margin: 0; font-size: 1.15rem; color: var(--ink); }
.card p { margin: 0; font-size: .95rem; color: var(--ink-soft); }
.card .more { margin-top: 6px; font-size: 13px; font-weight: 650; color: var(--accent-ink); }

.table-wrap { overflow-x: auto; margin: 18px 0 24px; -webkit-overflow-scrolling: touch; }
table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.95rem;
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: 12px;
}
th, td {
  text-align: left;
  padding: 10px 12px;
  border-bottom: 1px solid var(--line);
  vertical-align: top;
}
th { color: var(--accent-ink); background: var(--accent-wash); font-size: 12px; letter-spacing: .04em; text-transform: uppercase; }
td { color: var(--ink-soft); }
td:first-child { color: var(--ink); font-weight: 650; }

.faq { display: grid; gap: 10px; margin: 22px 0 8px; }
.faq details {
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: 12px;
  padding: 2px 18px;
  box-shadow: var(--shadow);
}
.faq summary {
  list-style: none;
  cursor: pointer;
  font-weight: 650;
  font-size: 1.02rem;
  padding: 15px 0;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 12px;
}
.faq summary::-webkit-details-marker { display: none; }
.faq summary::after { content: "+"; color: var(--accent); font-weight: 700; font-size: 20px; line-height: 1; }
.faq details[open] summary::after { content: "–"; }
.faq p { margin: 0 0 16px; color: var(--ink-soft); font-size: .96rem; }

.cta {
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: clamp(24px, 4vw, 40px);
  box-shadow: var(--shadow);
  text-align: center;
  display: grid;
  gap: 14px;
  justify-items: center;
  margin: 36px 0 8px;
}
.cta h2 { margin: 0; max-width: 22ch; }
.cta p { margin: 0; color: var(--ink-soft); max-width: 48ch; }

.related {
  margin: 32px 0 0;
  padding-top: 18px;
  border-top: 1px solid var(--line);
  font-size: 0.95rem;
  color: var(--ink-soft);
}
.related a { color: var(--accent-ink); font-weight: 650; }

.foot {
  display: grid;
  grid-template-columns: 1.6fr 1fr 1fr 1fr;
  gap: 28px;
  margin-top: clamp(44px, 6vw, 68px);
  padding-top: 32px;
  border-top: 1px solid var(--line);
}
@media (max-width: 680px) { .foot { grid-template-columns: 1fr 1fr; gap: 24px; } }
.foot h4 {
  font-size: 12px;
  text-transform: uppercase;
  letter-spacing: .1em;
  color: var(--ink-faint);
  margin: 0 0 12px;
  font-weight: 700;
}
.foot a {
  display: block;
  color: var(--ink-soft);
  text-decoration: none;
  font-size: 14px;
  margin-bottom: 9px;
}
.foot a:hover { color: var(--ink); }
.foot .fbrand .logo {
  display: flex;
  align-items: center;
  gap: 9px;
  font-weight: 800;
  font-size: 18px;
  letter-spacing: -.02em;
}
.foot .fbrand p {
  font-size: 13px;
  color: var(--ink-faint);
  margin: 12px 0 0;
  max-width: 30ch;
  line-height: 1.5;
}
.foot-bottom {
  display: flex;
  justify-content: space-between;
  gap: 12px;
  margin-top: 26px;
  padding-top: 18px;
  border-top: 1px solid var(--line);
  font-size: 12.5px;
  color: var(--ink-faint);
  flex-wrap: wrap;
}

@media (prefers-reduced-motion: reduce) {
  * { transition: none !important; animation: none !important; }
}