:root {
  --ink: #090b0d;
  --muted: #596166;
  --line: rgba(9, 11, 13, 0.16);
  --paper: #fbfbf8;
  --panel: #ffffff;
  --signal: #c7efff;
  --signal-2: #9fddfa;
  --lilac: #cbcaff;
  --accent: #ff765a;
  --radius: 28px;
  --shadow: 0 24px 70px rgba(9, 11, 13, 0.1);
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; scroll-padding-top: 110px; }
body {
  margin: 0;
  color: var(--ink);
  background: var(--paper);
  font: 16px/1.72 "DM Sans", system-ui, sans-serif;
}
a { color: inherit; }
button { font: inherit; }
:focus-visible { outline: 3px solid var(--accent); outline-offset: 3px; }

.skip-link {
  position: fixed;
  z-index: 100;
  left: 20px;
  top: -80px;
  padding: 11px 16px;
  border-radius: 999px;
  background: var(--ink);
  color: #fff;
  text-decoration: none;
}
.skip-link:focus { top: 12px; }
.wrap { width: min(1160px, calc(100% - 48px)); margin-inline: auto; }
.reading-wrap { width: min(760px, calc(100% - 48px)); margin-inline: auto; }

.nav {
  position: sticky;
  z-index: 30;
  top: 18px;
  width: min(1160px, calc(100% - 36px));
  height: 62px;
  margin: 18px auto;
  padding: 9px 14px 9px 12px;
  border: 1px solid var(--line);
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.86);
  backdrop-filter: blur(18px);
  box-shadow: 0 8px 30px rgba(9, 11, 13, 0.07);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
}
.brand {
  display: flex;
  align-items: center;
  gap: 10px;
  color: var(--ink);
  font: 700 1rem "Manrope", system-ui, sans-serif;
  letter-spacing: -0.035em;
  text-decoration: none;
  white-space: nowrap;
}
.brandmark {
  width: 34px;
  height: 34px;
  border-radius: 50%;
  background: var(--ink);
  color: #fff;
  display: grid;
  place-items: center;
  font-size: 0.72rem;
}
.navlinks { display: flex; align-items: center; gap: 8px; margin-left: auto; }
.navlinks a {
  min-height: 42px;
  padding: 10px 14px;
  border-radius: 999px;
  display: inline-flex;
  align-items: center;
  font-size: 0.8rem;
  font-weight: 700;
  text-decoration: none;
}
.navlinks a:hover { background: var(--signal); }

.breadcrumbs {
  padding: 30px 0 18px;
  color: #687278;
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}
.breadcrumbs a { text-decoration: none; }
.breadcrumbs a:hover { text-decoration: underline; text-underline-offset: 4px; }

.article-hero {
  position: relative;
  min-height: 540px;
  padding: 74px 0 72px;
  overflow: hidden;
  border-block: 1px solid var(--line);
  background: var(--signal);
  isolation: isolate;
}
.article-hero::before {
  content: "";
  position: absolute;
  z-index: -1;
  right: -120px;
  top: 50px;
  width: 430px;
  height: 430px;
  border: 1px dashed rgba(9, 11, 13, 0.28);
  border-radius: 50%;
  box-shadow: 0 0 0 88px rgba(255, 255, 255, 0.12), 0 0 0 168px rgba(9, 11, 13, 0.07);
  animation: orbit-drift 11s ease-in-out infinite;
}
.article-hero::after {
  content: "READ\A signal";
  white-space: pre;
  position: absolute;
  z-index: -1;
  right: 86px;
  top: 208px;
  width: 124px;
  height: 124px;
  border-radius: 43% 57% 55% 45% / 50% 42% 58% 50%;
  background: var(--ink);
  color: #fff;
  display: grid;
  place-content: center;
  text-align: center;
  font: 600 0.76rem/1.45 "Manrope", sans-serif;
  animation: morph 9s ease-in-out infinite;
}
.article-hero .wrap { position: relative; z-index: 2; }
.article-label {
  display: inline-flex;
  align-items: center;
  gap: 9px;
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.14em;
  text-transform: uppercase;
}
.article-label::before {
  content: "";
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--accent);
  box-shadow: 0 0 0 7px rgba(255, 255, 255, 0.42);
}
.learn-hero {
  position: relative;
  min-height: 500px;
  padding: 82px 0 72px;
  overflow: hidden;
  border-block: 1px solid var(--line);
  background: var(--signal);
  isolation: isolate;
}
.learn-hero::before {
  content: "";
  position: absolute;
  z-index: -1;
  right: -130px;
  top: -100px;
  width: 560px;
  height: 560px;
  border: 1px dashed rgba(9, 11, 13, 0.28);
  border-radius: 50%;
  box-shadow: 0 0 0 90px rgba(255, 255, 255, 0.15), 0 0 0 180px rgba(9, 11, 13, 0.06);
}
.learn-hero-inner { position: relative; z-index: 2; }
.learn-hero h1 {
  max-width: 850px;
  margin: 28px 0 22px;
  font: 600 clamp(3.7rem, 7.8vw, 7rem) / 0.92 "Manrope", system-ui, sans-serif;
  letter-spacing: -0.075em;
}
.learn-hero-inner > p { max-width: 660px; margin: 0; color: #2f3a3f; font-size: 1.12rem; }
.learn-hero-mark {
  position: absolute;
  z-index: -1;
  right: max(calc((100vw - 1160px) / 2 + 75px), 7vw);
  top: 185px;
  width: 132px;
  height: 132px;
  border-radius: 43% 57% 55% 45% / 50% 42% 58% 50%;
  background: var(--ink);
  color: #fff;
  display: grid;
  align-content: center;
  text-align: center;
  font: 700 0.68rem/1.6 "Manrope", sans-serif;
  letter-spacing: 0.12em;
  transform: rotate(8deg);
}
.learn-hero-mark span { color: var(--signal); font-size: 1rem; letter-spacing: -0.03em; }
.learn-topics { display: flex; flex-wrap: wrap; gap: 9px; margin-top: 42px; }
.learn-topics a {
  display: inline-flex;
  align-items: center;
  gap: 18px;
  padding: 10px 14px;
  border: 1px solid var(--line);
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.45);
  font-size: 0.76rem;
  font-weight: 700;
  text-decoration: none;
}
.learn-topics a:hover { background: #fff; }
.learn-topics span { color: #596166; font-size: 0.66rem; }
.learn-section { padding-top: 80px; padding-bottom: 88px; }
.learn-section-tint { border-block: 1px solid var(--line); background: #f0f0eb; }
.learn-section-tint > .wrap { padding-top: 80px; padding-bottom: 88px; }
.learn-section-head {
  display: grid;
  grid-template-columns: minmax(0, 1.1fr) minmax(260px, 0.7fr);
  align-items: end;
  gap: 42px;
  margin-bottom: 34px;
}
.learn-kicker { color: #405058; font-size: 0.7rem; font-weight: 700; letter-spacing: 0.13em; text-transform: uppercase; }
.learn-section-head h2, .learn-cta h2 {
  margin: 12px 0 0;
  font: 600 clamp(2.7rem, 5.5vw, 4.8rem) / 0.96 "Manrope", system-ui, sans-serif;
  letter-spacing: -0.07em;
}
.learn-section-head > p { max-width: 470px; margin: 0 0 5px; color: var(--muted); }
.learn-card-grid { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 12px; }
.learn-card-grid-single { grid-template-columns: minmax(0, 1fr); max-width: 380px; }
.learn-card {
  min-height: 248px;
  border: 1px solid var(--line);
  border-radius: 22px;
  background: #fff;
  transition: transform 0.2s ease, box-shadow 0.2s ease;
}
.learn-card:hover { transform: translateY(-4px); box-shadow: 0 18px 38px rgba(9, 11, 13, 0.08); }
.learn-card-link { height: 100%; min-height: inherit; padding: 22px; display: flex; flex-direction: column; color: inherit; text-decoration: none; }
.learn-card-type { color: #405058; font-size: 0.68rem; font-weight: 700; letter-spacing: 0.1em; text-transform: uppercase; }
.learn-card h3 { margin: 20px 0 10px; font: 600 1.28rem/1.25 "Manrope", system-ui, sans-serif; letter-spacing: -0.035em; }
.learn-card p { margin: 0 0 24px; color: var(--muted); font-size: 0.87rem; line-height: 1.58; }
.learn-card-meta { margin-top: auto; padding-top: 14px; border-top: 1px solid var(--line); display: flex; justify-content: space-between; align-items: center; color: #657076; font-size: 0.7rem; }
.learn-card-meta span { color: var(--ink); font-size: 1rem; }
.learn-cta { padding: 68px 0; background: var(--ink); color: #fff; }
.learn-cta-inner { display: flex; align-items: end; justify-content: space-between; gap: 28px; }
.learn-cta .learn-kicker { color: var(--signal); }
.learn-cta h2 { font-size: clamp(2.7rem, 5vw, 4.4rem); }
.learn-cta-inner > a { padding: 15px 18px; border-radius: 999px; background: var(--signal); color: var(--ink); font-size: 0.82rem; font-weight: 700; text-decoration: none; }
.learn-cta-inner > a:hover { background: #fff; }
.learn-cta-inner > a span { margin-left: 16px; }
.article-hero h1 {
  max-width: 900px;
  margin: 24px 0 22px;
  font: 600 clamp(3.8rem, 7.5vw, 7rem) / 0.9 "Manrope", system-ui, sans-serif;
  letter-spacing: -0.075em;
}
.article-deck { max-width: 700px; margin: 0; color: #2f3a3f; font-size: 1.1rem; line-height: 1.65; }
.article-meta { display: flex; gap: 10px; flex-wrap: wrap; margin-top: 26px; color: #374348; font-size: 0.72rem; }
.article-meta span {
  padding: 7px 10px;
  border: 1px solid var(--line);
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.46);
}

.article-layout {
  display: grid;
  grid-template-columns: minmax(0, 780px) 300px;
  gap: 76px;
  padding: 78px 0 120px;
}
.prose { min-width: 0; font-size: 1.02rem; }
.prose h2 {
  margin: 64px 0 16px;
  font: 600 clamp(2rem, 4vw, 3rem) / 1.08 "Manrope", system-ui, sans-serif;
  letter-spacing: -0.055em;
}
.prose h2:first-child { margin-top: 0; }
.prose h3 { margin: 38px 0 10px; font: 600 1.25rem/1.35 "Manrope", system-ui, sans-serif; }
.prose p, .prose li { color: #3f494e; }
.prose a { color: #075f82; text-underline-offset: 4px; text-decoration-thickness: 1px; }
.prose ul, .prose ol { padding-left: 24px; }
.prose li + li { margin-top: 7px; }
.prose img { max-width: 100%; height: auto; }
.article-cover {
  display: block;
  width: 100%;
  margin: 0 0 42px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
}

.toc {
  position: sticky;
  top: 104px;
  align-self: start;
  padding: 24px;
  border: 1px solid #2d3133;
  border-radius: 24px;
  background: var(--ink);
  color: #fff;
  box-shadow: 0 18px 44px rgba(9, 11, 13, 0.14);
}
.toc strong { font: 600 0.9rem "Manrope", system-ui, sans-serif; }
.toc a {
  display: block;
  margin-top: 11px;
  color: #b9c0c3;
  font-size: 0.8rem;
  line-height: 1.4;
  text-decoration: none;
}
.toc a:hover, .toc a:focus-visible { color: var(--signal); }

.editor-note, .verdict, .disclosure {
  margin: 34px 0;
  padding: 24px;
  border: 1px solid var(--line);
  border-radius: 22px;
}
.editor-note { background: var(--lilac); }
.editor-note p { margin-bottom: 0; }
.verdict { border-color: var(--ink); background: var(--ink); color: #fff; }
.verdict p { color: #c6cccf; }
.disclosure { background: #fff; color: #4b555a; font-size: 0.9rem; }

.fact-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 12px; margin: 32px 0; }
.fact {
  padding: 20px;
  border: 1px solid var(--line);
  border-radius: 20px;
  background: #fff;
}
.fact span { display: block; margin-bottom: 6px; color: #697278; font-size: 0.72rem; }
.fact strong { font: 600 0.95rem "Manrope", system-ui, sans-serif; }

.comparison-table {
  width: 100%;
  margin: 34px 0;
  border: 1px solid var(--line);
  border-spacing: 0;
  border-radius: 20px;
  background: #fff;
  overflow: hidden;
  font-size: 0.88rem;
}
.comparison-table th, .comparison-table td { padding: 16px; border-bottom: 1px solid var(--line); text-align: left; vertical-align: top; }
.comparison-table th { background: var(--ink); color: #fff; font-weight: 600; }
.comparison-table tr:last-child td { border-bottom: 0; }
.prose blockquote {
  margin: 32px 0;
  padding: 4px 0 4px 22px;
  border-left: 4px solid var(--accent);
  font: 500 1.08rem/1.65 "Manrope", system-ui, sans-serif;
}
.prose blockquote p { color: #22282b; }
.sources {
  margin-top: 64px;
  padding: 30px;
  border: 1px solid var(--line);
  border-radius: 24px;
  background: #fff;
  font-size: 0.88rem;
}
.sources h2 { margin-top: 0; }

.related {
  padding: 72px 0 88px;
  border-top: 1px solid var(--line);
  background: var(--signal);
}
.related h2 { margin: 0 0 28px; font: 600 clamp(2.6rem, 5vw, 4.8rem) / 0.95 "Manrope", sans-serif; letter-spacing: -0.065em; }
.related-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 12px; }
.related-card {
  min-height: 180px;
  padding: 22px;
  border: 1px solid var(--line);
  border-radius: 22px;
  background: rgba(255, 255, 255, 0.52);
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  text-decoration: none;
  transition: transform 0.2s ease, background-color 0.2s ease;
}
.related-card:hover { transform: translateY(-5px); background: #fff; }
.related-card span { color: #405058; font-size: 0.72rem; font-weight: 700; letter-spacing: 0.1em; text-transform: uppercase; }
.related-card strong { margin-top: 24px; font: 600 1.18rem/1.35 "Manrope", system-ui, sans-serif; }

.footer {
  padding: 42px 0 52px;
  border-top: 1px solid #2e3234;
  background: var(--ink);
  color: #c2c8cb;
  font-size: 0.78rem;
}
.footer-row { display: flex; justify-content: space-between; align-items: center; gap: 24px; }
.footer-links { display: flex; gap: 18px; flex-wrap: wrap; }
.footer a { color: #fff; text-underline-offset: 4px; }

.cookie-notice {
  position: fixed;
  z-index: 50;
  left: 20px;
  right: 20px;
  bottom: 18px;
  display: none;
  align-items: center;
  justify-content: space-between;
  gap: 18px;
  max-width: 760px;
  margin: auto;
  padding: 14px 14px 14px 18px;
  border: 1px solid var(--line);
  border-radius: 20px;
  background: rgba(255, 255, 255, 0.95);
  color: var(--ink);
  box-shadow: var(--shadow);
  backdrop-filter: blur(16px);
}
.cookie-notice p { margin: 0; color: var(--muted); font-size: 0.78rem; }
.cookie-actions { display: flex; gap: 8px; flex: none; }
.cookie-actions button {
  min-height: 42px;
  padding: 0 14px;
  border: 1px solid var(--line);
  border-radius: 999px;
  background: transparent;
  color: var(--ink);
  font-size: 0.75rem;
  font-weight: 700;
  cursor: pointer;
}
.cookie-actions .accept { border-color: var(--ink); background: var(--ink); color: #fff; }

@keyframes orbit-drift { 50% { transform: translate(-18px, 12px) rotate(3deg); } }
@keyframes morph {
  0%, 100% { border-radius: 43% 57% 55% 45% / 50% 42% 58% 50%; transform: rotate(0); }
  50% { border-radius: 58% 42% 39% 61% / 45% 59% 41% 55%; transform: rotate(5deg); }
}

@media (max-width: 980px) {
  .article-layout { grid-template-columns: 1fr; gap: 54px; }
  .toc { position: static; }
  .article-hero::before { right: -250px; opacity: 0.5; }
  .article-hero::after { right: -22px; opacity: 0.82; }
  .related-grid { grid-template-columns: 1fr 1fr; }
  .learn-card-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .learn-hero-mark { right: 8%; opacity: 0.86; }
}

@media (max-width: 650px) {
  html { scroll-padding-top: 84px; }
  .wrap, .reading-wrap { width: calc(100% - 28px); }
  .nav { top: 10px; width: calc(100% - 20px); height: 58px; margin-top: 10px; }
  .navlinks { display: none; }
  .breadcrumbs { padding-top: 24px; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
  .learn-hero { min-height: auto; padding: 62px 0 54px; }
  .learn-hero h1 { max-width: 94%; margin-top: 24px; font-size: clamp(3.25rem, 15vw, 4.8rem); }
  .learn-hero-mark { right: -30px; top: 170px; width: 104px; height: 104px; opacity: 0.32; }
  .learn-topics { gap: 7px; margin-top: 30px; }
  .learn-topics a { gap: 9px; padding: 9px 11px; font-size: 0.7rem; }
  .learn-section, .learn-section-tint > .wrap { padding-top: 58px; padding-bottom: 64px; }
  .learn-section-head { grid-template-columns: 1fr; gap: 18px; margin-bottom: 26px; }
  .learn-section-head h2, .learn-cta h2 { font-size: clamp(2.7rem, 13vw, 4rem); }
  .learn-card-grid, .learn-card-grid-single { grid-template-columns: 1fr; max-width: none; }
  .learn-card { min-height: 215px; }
  .learn-cta { padding: 58px 0; }
  .learn-cta-inner { align-items: start; flex-direction: column; }
  .article-hero { min-height: 510px; padding: 58px 0 54px; }
  .article-hero h1 { max-width: 94%; font-size: clamp(3.25rem, 16vw, 4.75rem); }
  .article-hero::before { right: -330px; top: 150px; }
  .article-hero::after { top: 330px; right: -78px; width: 106px; height: 106px; }
  .article-layout { padding: 56px 0 88px; gap: 40px; }
  .prose h2 { margin-top: 52px; }
  .fact-grid, .related-grid { grid-template-columns: 1fr; }
  .comparison-table { display: block; overflow-x: auto; }
  .related { padding: 58px 0 68px; }
  .related-card { min-height: 150px; }
  .footer-row { display: block; }
  .footer-links { margin-top: 14px; }
  .cookie-notice { left: 10px; right: 10px; bottom: 10px; align-items: stretch; flex-direction: column; }
  .cookie-actions, .cookie-actions button { flex: 1; }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { animation-duration: 0.01ms !important; animation-iteration-count: 1 !important; transition-duration: 0.01ms !important; }
}