@font-face {
  font-family: "Space Grotesk";
  src: url("/fonts/space-grotesk-latin-500-normal.woff2") format("woff2");
  font-weight: 500;
  font-style: normal;
  font-display: swap;
}

@font-face {
  font-family: "Space Grotesk";
  src: url("/fonts/space-grotesk-latin-700-normal.woff2") format("woff2");
  font-weight: 700;
  font-style: normal;
  font-display: swap;
}

@font-face {
  font-family: "IBM Plex Sans";
  src: url("/fonts/ibm-plex-sans-latin-400-normal.woff2") format("woff2");
  font-weight: 400;
  font-style: normal;
  font-display: swap;
}

@font-face {
  font-family: "IBM Plex Sans";
  src: url("/fonts/ibm-plex-sans-latin-700-normal.woff2") format("woff2");
  font-weight: 700;
  font-style: normal;
  font-display: swap;
}

@font-face {
  font-family: "IBM Plex Mono";
  src: url("/fonts/ibm-plex-mono-latin-500-normal.woff2") format("woff2");
  font-weight: 500;
  font-style: normal;
  font-display: swap;
}

@font-face {
  font-family: "IBM Plex Mono";
  src: url("/fonts/ibm-plex-mono-latin-600-normal.woff2") format("woff2");
  font-weight: 600;
  font-style: normal;
  font-display: swap;
}

:root {
  --ink: #101820;
  --teal: #006c67;
  --copper: #97502b;
  --lime: #a9bbb2;
  --electric: #3b82f6;
  --mist: #f3f6f4;
  --ivory: #fafaf2;
  --line: #d8ded9;
  --muted: #5e6a70;
}

* {
  box-sizing: border-box;
}

:focus-visible {
  outline: 3px solid var(--electric);
  outline-offset: 3px;
}

.skip-link {
  position: fixed;
  top: 12px;
  left: 12px;
  z-index: 10;
  transform: translateY(-160%);
  border-radius: 8px;
  padding: 10px 14px;
  background: var(--ink);
  color: #fff;
  font-weight: 800;
  text-decoration: none;
}

.skip-link:focus-visible {
  transform: translateY(0);
}

.reading-progress {
  position: fixed;
  top: 0;
  left: 0;
  z-index: 20;
  width: 100%;
  height: 3px;
  transform: scaleX(var(--reading-progress, 0));
  transform-origin: left;
  background: var(--teal);
  transition: transform 100ms linear;
}

.js-enabled .page-shell > :not(.topbar) {
  opacity: 0;
  transform: translateY(14px);
  transition: opacity 380ms ease, transform 380ms ease;
}

.js-enabled .page-shell > .is-visible {
  opacity: 1;
  transform: translateY(0);
}

body {
  margin: 0;
  font-family: "IBM Plex Sans", Aptos, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  color: var(--ink);
  background:
    radial-gradient(circle at 10% 0%, rgba(169, 187, 178, 0.11), transparent 28rem),
    linear-gradient(90deg, rgba(16, 24, 32, 0.045) 1px, transparent 1px),
    linear-gradient(180deg, rgba(16, 24, 32, 0.035) 1px, transparent 1px),
    var(--ivory);
  background-size: auto, 72px 72px, 72px 72px;
  line-height: 1.65;
}

.page-shell {
  width: min(100% - 32px, 1040px);
  margin: 0 auto;
  padding: 34px 0 80px;
}

.topbar {
  display: flex;
  justify-content: space-between;
  gap: 18px;
  align-items: center;
  margin-bottom: 56px;
}

.brand {
  color: var(--ink);
  font-weight: 900;
  text-decoration: none;
}

.back {
  color: var(--teal);
  font-weight: 800;
}

.back-link {
  display: inline-flex;
  margin-bottom: 34px;
  color: var(--teal);
  font-weight: 800;
  text-decoration: none;
}

.article {
  border: 1px solid var(--line);
  border-radius: 18px;
  padding: clamp(28px, 5vw, 56px);
  background:
    radial-gradient(circle at 88% 6%, rgba(169, 187, 178, 0.18), transparent 28%),
    radial-gradient(circle at 12% 92%, rgba(59, 130, 246, 0.08), transparent 26%),
    linear-gradient(180deg, rgba(255,255,255,0.98), rgba(250,250,242,0.96));
  box-shadow: 0 26px 70px rgba(23, 33, 43, 0.1);
}

.hero-page {
  border: 1px solid var(--line);
  border-radius: 18px;
  padding: clamp(28px, 5vw, 56px);
  background:
    radial-gradient(circle at 90% 8%, rgba(169, 187, 178, 0.22), transparent 28%),
    radial-gradient(circle at 12% 92%, rgba(59, 130, 246, 0.1), transparent 30%),
    linear-gradient(180deg, rgba(255,255,255,0.96), rgba(250,250,242,0.96));
  box-shadow: 0 26px 70px rgba(23, 33, 43, 0.12);
}

.eyebrow {
  color: var(--teal);
  font-family: "IBM Plex Mono", "IBM Plex Sans", monospace;
  font-size: 0.76rem;
  font-weight: 900;
  letter-spacing: 0;
  text-transform: uppercase;
}

h1,
h2,
h3 {
  font-family: "Space Grotesk", "IBM Plex Sans", sans-serif;
  font-weight: 700;
}

h1 {
  max-width: 13ch;
  margin: 12px 0 20px;
  font-size: clamp(2.8rem, 7vw, 5.8rem);
  line-height: 0.92;
  letter-spacing: 0;
}

h2 {
  max-width: 18ch;
  margin: 58px 0 18px;
  font-size: clamp(1.8rem, 3vw, 3rem);
  line-height: 1.08;
}

h3 {
  margin: 0 0 8px;
}

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

.lead {
  max-width: 68ch;
  color: #344148;
  font-size: 1.16rem;
}

.article-meta {
  display: inline-flex;
  margin: -4px 0 18px;
  border: 1px solid rgba(16, 24, 32, 0.1);
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.72);
  color: var(--muted);
  padding: 6px 10px;
  font-size: 0.82rem;
  font-weight: 700;
}

.grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 16px;
  margin-top: 24px;
}

.insight-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 18px;
  margin-top: 34px;
}

.insight-card {
  position: relative;
  display: flex;
  min-height: 220px;
  flex-direction: column;
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 22px;
  background: linear-gradient(180deg, #fff, var(--ivory));
  box-shadow: 0 12px 28px rgba(16, 24, 32, 0.05);
}

.insight-card h2 {
  max-width: none;
  margin: 0 0 10px;
  font-size: 1.18rem;
  line-height: 1.16;
}

.insight-card p {
  margin: 0;
}

.insight-card a {
  margin-top: auto;
  padding-top: 18px;
  color: var(--teal);
  font-weight: 800;
}

.card {
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 22px;
  background: linear-gradient(180deg, #fff, var(--ivory));
}

.card strong {
  color: var(--ink);
}

.cta {
  display: inline-flex;
  min-height: 44px;
  align-items: center;
  justify-content: center;
  margin-top: 26px;
  border-radius: 8px;
  padding: 0.75rem 1rem;
  border: 1px solid rgba(16, 24, 32, 0.92);
  background: var(--ink);
  color: #fff;
  font-weight: 900;
  text-decoration: none;
  box-shadow: 0 16px 34px rgba(16, 24, 32, 0.18);
}

.cta:hover,
.button-link:hover {
  border-color: var(--copper);
  background: #1d2a33;
  box-shadow: 0 20px 42px rgba(16, 24, 32, 0.24);
}

.note {
  border-left: 4px solid var(--lime);
  margin-top: 24px;
  padding: 14px 18px;
  background: rgba(169, 187, 178, 0.16);
}

.table-wrap {
  overflow-x: auto;
  margin: 24px 0 10px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: #fff;
}

table {
  width: 100%;
  min-width: 760px;
  border-collapse: collapse;
}

th,
td {
  padding: 14px 16px;
  border-bottom: 1px solid var(--line);
  text-align: left;
  vertical-align: top;
}

th {
  color: var(--ink);
  background: rgba(0, 108, 103, 0.08);
  font-size: 0.86rem;
  font-family: "IBM Plex Mono", monospace;
  text-transform: uppercase;
}

td {
  color: var(--muted);
}

.button-link {
  display: inline-flex;
  min-height: 44px;
  align-items: center;
  justify-content: center;
  margin: 10px 10px 0 0;
  border: 1px solid rgba(16, 24, 32, 0.92);
  border-radius: 8px;
  padding: 0.75rem 1rem;
  background: var(--ink);
  color: #fff;
  font-weight: 900;
  font-family: "Space Grotesk", "IBM Plex Sans", sans-serif;
  text-decoration: none;
  box-shadow: 0 16px 34px rgba(16, 24, 32, 0.18);
}

.button-link.secondary {
  border: 1px solid rgba(16, 24, 32, 0.16);
  background: #fff;
  color: var(--ink);
  box-shadow: none;
}

.button-link.secondary:hover {
  background: #fff;
  color: var(--ink);
  box-shadow: 0 12px 26px rgba(16, 24, 32, 0.08);
}

footer {
  margin-top: 70px;
  border-top: 1px solid var(--line);
  padding-top: 24px;
}

footer a {
  color: var(--teal);
  font-weight: 800;
}

@media (max-width: 760px) {
  .topbar,
  .grid,
  .insight-grid {
    grid-template-columns: 1fr;
  }

  .topbar {
    align-items: flex-start;
    flex-direction: column;
  }
}

@media (prefers-reduced-motion: reduce) {
  .reading-progress {
    display: none;
  }

  .js-enabled .page-shell > :not(.topbar) {
    opacity: 1;
    transform: none;
    transition: none;
  }
}

.related-guides {
  margin: 36px 0;
  padding: 22px;
  border: 1px solid rgba(16, 24, 32, 0.14);
  border-radius: 8px;
  background: #f7faf9;
}

.related-guides h2 {
  margin-top: 0;
}

.related-guides ul {
  display: grid;
  gap: 10px;
  padding-left: 20px;
}