:root {
  color-scheme: dark;
  --fx-bg: #0a0b0d;
  --fx-panel: #14161a;
  --fx-panel-2: #191c21;
  --fx-line: #232830;
  --fx-line-2: #2d3440;
  --fx-text: #e9ecef;
  --fx-muted: #9aa3ad;
  --fx-accent: #22d3ee;
  --fx-accent-soft: #67e8f9;
  --fx-accent-deep: #0e7490;
  --fx-radius: 14px;
  --fx-radius-s: 8px;
  --fx-wrap: 1180px;
  --fx-gap: 28px;
}

* { box-sizing: border-box; }

html { -webkit-text-size-adjust: 100%; }

body {
  margin: 0;
  background: var(--fx-bg);
  color: var(--fx-text);
  font: 400 17px/1.7 "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
}

h1, h2, h3 {
  margin: 0 0 16px;
  font-weight: 600;
  letter-spacing: -0.015em;
  line-height: 1.18;
}

h1 { font-size: clamp(2.05rem, 5.2vw, 3.05rem); }
h2 { font-size: clamp(1.5rem, 3.2vw, 2.05rem); }
h3 { font-size: 1.16rem; letter-spacing: 0; }

p { margin: 0 0 18px; }

a {
  color: var(--fx-accent);
  text-decoration: none;
  border-bottom: 1px solid #22d3ee4d;
  transition: color 140ms ease, border-color 140ms ease;
}

a:hover { color: var(--fx-accent-soft); border-bottom-color: var(--fx-accent-soft); }

a:focus-visible,
button:focus-visible,
summary:focus-visible {
  outline: 2px solid var(--fx-accent);
  outline-offset: 2px;
  border-radius: 4px;
}

img {
  display: block;
  max-width: 100%;
  height: auto;
}

ul, ol { margin: 0 0 18px; padding-left: 22px; }

li { margin-bottom: 9px; }

table { border-collapse: collapse; width: 100%; }

code, kbd {
  font-family: "SFMono-Regular", Consolas, "Liberation Mono", Menlo, monospace;
  font-size: 0.92em;
  overflow-wrap: anywhere;
}

.fx-skip {
  position: absolute;
  left: -9999px;
  top: 0;
  background: var(--fx-accent);
  color: #0a0b0d;
  padding: 12px 20px;
  border: 0;
  z-index: 60;
}

.fx-skip:focus { left: 12px; top: 12px; }

.fx-wrap {
  width: 100%;
  max-width: var(--fx-wrap);
  margin: 0 auto;
  padding-left: 22px;
  padding-right: 22px;
}

.fx-head {
  position: sticky;
  top: 0;
  z-index: 40;
  background: #0a0b0df2;
  border-bottom: 1px solid var(--fx-line);
}

.fx-head__inner {
  display: flex;
  align-items: center;
  gap: 16px;
  flex-wrap: wrap;
  min-height: 68px;
  padding-top: 10px;
  padding-bottom: 10px;
}

.fx-head__brand {
  font-weight: 600;
  font-size: 1.06rem;
  letter-spacing: 0.01em;
  color: var(--fx-text);
  border: 0;
  white-space: nowrap;
}

.fx-head__brand span { color: var(--fx-accent); }

.fx-head__cta { margin-left: auto; }

.fx-nav {
  display: flex;
  gap: 4px 20px;
  flex-wrap: wrap;
  font-size: 0.95rem;
}

.fx-nav a {
  color: var(--fx-muted);
  border: 0;
  padding: 10px 0;
  display: inline-block;
  min-height: 44px;
}

.fx-nav a:hover { color: var(--fx-text); }

.fx-nav a[aria-current="page"] { color: var(--fx-accent); }

.fx-crumb {
  font-size: 0.9rem;
  color: var(--fx-muted);
  padding-top: 20px;
}

.fx-crumb a {
  border: 0;
  text-decoration: underline;
  text-underline-offset: 3px;
}

.fx-btn {
  display: inline-block;
  min-height: 44px;
  padding: 14px 26px;
  border: 1px solid var(--fx-accent);
  border-radius: 999px;
  background: var(--fx-accent);
  color: #06212a;
  font-weight: 600;
  font-size: 0.98rem;
  line-height: 1.1;
  cursor: pointer;
  transition: box-shadow 160ms ease, background-color 160ms ease, color 160ms ease;
}

.fx-btn:hover {
  background: var(--fx-accent-soft);
  color: #06212a;
  box-shadow: 0 0 0 4px #22d3ee2e;
}

.fx-btn--ghost {
  background: transparent;
  color: var(--fx-accent);
  border-color: var(--fx-line-2);
}

.fx-btn--ghost:hover {
  color: var(--fx-accent-soft);
  border-color: var(--fx-accent);
  background: #22d3ee14;
}

.fx-btn--wide { width: 100%; text-align: center; }

.fx-lead { font-size: 1.1rem; color: var(--fx-muted); }

.fx-sig {
  font-size: 0.88rem;
  color: var(--fx-muted);
  border-left: 2px solid var(--fx-accent-deep);
  padding: 4px 0 4px 14px;
  margin-bottom: 22px;
}

.fx-split { padding-top: 40px; padding-bottom: 56px; }

.fx-split__grid { display: grid; gap: 34px; }

.fx-split__aside {
  align-self: start;
  min-width: 0;
}

.fx-split__aside h1 { margin-bottom: 20px; }

.fx-split__acts {
  display: flex;
  gap: 12px;
  flex-wrap: wrap;
  margin-bottom: 22px;
}

.fx-split__main {
  min-width: 0;
}

.fx-split__main > section { margin-bottom: 46px; }

.fx-split__main > section:last-child { margin-bottom: 0; }

.fx-cover {
  border-bottom: 1px solid var(--fx-line);
  background: radial-gradient(680px 320px at 18% 0%, #0e749033, #0a0b0d 70%);
  padding-top: 74px;
  padding-bottom: 74px;
}

.fx-cover h1 { max-width: 15ch; }

.fx-cover__line {
  font-size: 1.15rem;
  color: var(--fx-muted);
  max-width: 46ch;
  margin-bottom: 26px;
}

.fx-body {
  max-width: 720px;
  margin: 0 auto;
  padding-top: 46px;
  padding-bottom: 46px;
}

.fx-body > section { margin-bottom: 44px; }

.fx-toc {
  border: 1px solid var(--fx-line);
  border-radius: var(--fx-radius);
  background: var(--fx-panel);
  padding: 20px 24px;
  margin-bottom: 40px;
}

.fx-toc ol {
  margin: 0;
  padding-left: 20px;
  color: var(--fx-muted);
}

.fx-toc a { border: 0; }

.fx-flow__intro { padding-top: 48px; padding-bottom: 20px; }

.fx-flow__intro h1 { max-width: 19ch; }

.fx-flow section { padding-top: 34px; padding-bottom: 34px; }

.fx-flow p, .fx-flow ul, .fx-flow ol { max-width: 74ch; }

.fx-band { padding-top: 52px; padding-bottom: 52px; }

.fx-band--raised {
  background: var(--fx-panel);
  border-top: 1px solid var(--fx-line);
  border-bottom: 1px solid var(--fx-line);
}

.fx-band--tint { background: linear-gradient(180deg, #0e749017, #0a0b0d 62%); }

.fx-band h2 { max-width: 22ch; }

.fx-band p, .fx-band ul, .fx-band ol { max-width: 72ch; }

.fx-zig { padding-top: 46px; padding-bottom: 46px; }

.fx-zig__row {
  display: grid;
  gap: 26px;
  align-items: center;
  margin-bottom: 58px;
}

.fx-zig__row:last-child { margin-bottom: 0; }

.fx-zig__text {
  min-width: 0;
}

.fx-zig__text p:last-child { margin-bottom: 0; }

.fx-bento { padding-top: 44px; padding-bottom: 52px; }

.fx-bento__grid { display: grid; gap: 18px; }

.fx-bento__cell {
  border: 1px solid var(--fx-line);
  border-radius: var(--fx-radius);
  background: var(--fx-panel);
  padding: 24px 24px 20px;
  min-width: 0;
}

.fx-bento__cell--lead { background: linear-gradient(150deg, #14161a, #0f2730); }

.fx-bento__cell p:last-child { margin-bottom: 0; }

.fx-bento__num {
  display: block;
  font-size: 2.3rem;
  font-weight: 600;
  color: var(--fx-accent);
  letter-spacing: -0.03em;
  line-height: 1.1;
  margin-bottom: 4px;
}

.fx-bento__cap { font-size: 0.9rem; color: var(--fx-muted); }

.fx-cards { padding-top: 44px; padding-bottom: 52px; }

.fx-cards__grid {
  display: grid;
  gap: 20px;
  align-items: start;
}

.fx-cards__item {
  border: 1px solid var(--fx-line);
  border-radius: var(--fx-radius);
  background: var(--fx-panel);
  padding: 22px 22px 18px;
  min-width: 0;
}

.fx-cards__item--flag { border-color: var(--fx-accent-deep); background: var(--fx-panel-2); }

.fx-cards__item h3 { margin-bottom: 10px; }

.fx-cards__item p:last-child { margin-bottom: 0; }

.fx-cards__tag {
  display: inline-block;
  font-size: 0.78rem;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--fx-accent);
  margin-bottom: 8px;
}

.fx-steps { padding-top: 46px; padding-bottom: 50px; }

.fx-steps__list {
  list-style: none;
  margin: 0;
  padding: 0;
}

.fx-steps__item {
  position: relative;
  padding: 0 0 34px 62px;
  margin: 0;
  border-left: 1px solid var(--fx-line-2);
  margin-left: 19px;
}

.fx-steps__item:last-child { border-left-color: transparent; padding-bottom: 0; }

.fx-steps__num {
  position: absolute;
  left: -19px;
  top: 0;
  width: 38px;
  height: 38px;
  border-radius: 50%;
  border: 1px solid var(--fx-accent-deep);
  background: var(--fx-bg);
  color: var(--fx-accent);
  font-size: 0.92rem;
  font-weight: 600;
  display: flex;
  align-items: center;
  justify-content: center;
}

.fx-steps__item h2 {
  font-size: 1.22rem;
  letter-spacing: 0;
  margin-bottom: 8px;
  padding-top: 4px;
}

.fx-steps__item p:last-child { margin-bottom: 0; }

.fx-offset { padding-top: 44px; padding-bottom: 50px; }

.fx-offset__grid { display: grid; gap: 30px; }

.fx-offset__block {
  min-width: 0;
}

.fx-offset__block p:last-child, .fx-offset__block ul:last-child { margin-bottom: 0; }

.fx-comp { padding-top: 40px; padding-bottom: 50px; }

.fx-comp__crit {
  display: grid;
  gap: 16px;
  margin-bottom: 38px;
}

.fx-comp__crit dt {
  font-weight: 600;
  color: var(--fx-accent);
  margin-bottom: 4px;
}

.fx-comp__crit dd { margin: 0; color: var(--fx-muted); }

.fx-comp__after {
  display: grid;
  gap: 26px;
  margin-top: 38px;
}

.fx-comp__after h3 { margin-bottom: 8px; }

.fx-comp__after p:last-child { margin-bottom: 0; }

.fx-tablebox {
  margin: 0 0 14px;
  overflow-x: auto;
  border: 1px solid var(--fx-line);
  border-radius: var(--fx-radius);
  background: var(--fx-panel);
}

.fx-tablebox table { min-width: 620px; font-size: 0.95rem; }

.fx-tablebox caption {
  text-align: left;
  padding: 18px 20px 12px;
  font-weight: 600;
  color: var(--fx-text);
}

.fx-tablebox th, .fx-tablebox td {
  padding: 12px 16px;
  text-align: left;
  vertical-align: top;
  border-top: 1px solid var(--fx-line);
}

.fx-tablebox thead th {
  font-size: 0.8rem;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  color: var(--fx-muted);
  font-weight: 600;
  white-space: nowrap;
}

.fx-tablebox tbody th { color: var(--fx-accent); font-weight: 600; }

.fx-tablebox tbody tr:hover td { background: #22d3ee0f; }

.fx-source {
  font-size: 0.86rem;
  font-style: italic;
  color: var(--fx-muted);
  margin-bottom: 30px;
}

.fx-fig { margin: 0 0 26px; }

.fx-fig img {
  border: 1px solid var(--fx-line);
  border-radius: var(--fx-radius);
  width: 100%;
}

.fx-fig--slim img { max-width: 560px; }

.fx-fig figcaption {
  font-size: 0.88rem;
  color: var(--fx-muted);
  padding-top: 10px;
}

.fx-we {
  border: 1px solid var(--fx-line);
  border-left: 3px solid var(--fx-accent);
  border-radius: var(--fx-radius-s);
  background: var(--fx-panel-2);
  padding: 20px 22px;
  margin-bottom: 24px;
  font-family: "SFMono-Regular", Consolas, "Liberation Mono", Menlo, monospace;
  font-size: 0.9rem;
  line-height: 1.75;
  white-space: pre;
  overflow-x: auto;
  color: var(--fx-text);
}

.fx-diagram {
  border: 1px solid var(--fx-line);
  border-radius: var(--fx-radius);
  background: var(--fx-panel);
  padding: 22px 20px 14px;
  margin-bottom: 22px;
}

.fx-diagram svg {
  width: 100%;
  height: auto;
  display: block;
}

.fx-diagram figcaption {
  font-size: 0.88rem;
  color: var(--fx-muted);
  padding-top: 12px;
}

.fx-dl {
  display: grid;
  gap: 4px 30px;
  margin: 0 0 26px;
}

.fx-dl dt {
  font-weight: 600;
  color: var(--fx-text);
  padding-top: 12px;
  border-top: 1px solid var(--fx-line);
}

.fx-dl dd {
  margin: 0 0 12px;
  color: var(--fx-muted);
  font-size: 0.96rem;
}

.fx-limit {
  list-style: none;
  margin: 0 0 22px;
  padding: 0;
}

.fx-limit li {
  position: relative;
  padding-left: 26px;
  margin-bottom: 13px;
  color: var(--fx-muted);
}

.fx-limit li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 12px;
  width: 14px;
  height: 2px;
  background: var(--fx-accent-deep);
}

.fx-limit strong { color: var(--fx-text); font-weight: 600; }

.fx-myth {
  display: grid;
  gap: 16px;
  margin-bottom: 26px;
}

.fx-myth__pair {
  border: 1px solid var(--fx-line);
  border-radius: var(--fx-radius-s);
  background: var(--fx-panel);
  padding: 18px 20px;
}

.fx-myth__said {
  color: var(--fx-muted);
  margin-bottom: 10px;
  font-size: 0.96rem;
}

.fx-myth__real { margin: 0; }

.fx-time {
  list-style: none;
  margin: 0 0 24px;
  padding: 0;
}

.fx-time li {
  display: grid;
  gap: 2px 20px;
  padding: 14px 0;
  border-top: 1px solid var(--fx-line);
  margin: 0;
}

.fx-time time {
  color: var(--fx-accent);
  font-size: 0.92rem;
  font-variant-numeric: tabular-nums;
}

.fx-miss {
  counter-reset: fxm;
  list-style: none;
  margin: 0 0 24px;
  padding: 0;
}

.fx-miss li {
  counter-increment: fxm;
  position: relative;
  padding-left: 44px;
  margin-bottom: 18px;
}

.fx-miss li::before {
  content: counter(fxm, decimal-leading-zero);
  position: absolute;
  left: 0;
  top: 2px;
  color: var(--fx-accent-deep);
  font-weight: 600;
  font-size: 0.95rem;
  letter-spacing: 0.04em;
}

.fx-gal {
  display: grid;
  gap: 18px;
  margin-bottom: 26px;
}

.fx-gal figure { margin: 0; }

.fx-gal img {
  border: 1px solid var(--fx-line);
  border-radius: var(--fx-radius-s);
  width: 100%;
}

.fx-gal figcaption {
  font-size: 0.86rem;
  color: var(--fx-muted);
  padding-top: 8px;
}

.fx-faq { margin-bottom: 10px; }

.fx-faq details {
  border: 1px solid var(--fx-line);
  border-radius: var(--fx-radius-s);
  background: var(--fx-panel);
  margin-bottom: 10px;
  padding: 0 20px;
}

.fx-faq summary {
  cursor: pointer;
  padding: 16px 0;
  font-weight: 600;
  list-style: none;
  min-height: 44px;
}

.fx-faq summary::-webkit-details-marker { display: none; }

.fx-faq summary::after {
  content: "+";
  float: right;
  color: var(--fx-accent);
  font-weight: 400;
  font-size: 1.3rem;
  line-height: 1.1;
}

.fx-faq details[open] summary::after { content: "\2212"; }

.fx-faq p { color: var(--fx-muted); padding-bottom: 4px; }

.fx-out {
  border: 1px solid var(--fx-line);
  border-radius: var(--fx-radius-s);
  background: var(--fx-panel);
  padding: 16px 20px;
  margin-bottom: 24px;
  font-size: 0.93rem;
}

.fx-out p { margin: 0 0 8px; }

.fx-out p:last-child {
  margin: 0;
  color: var(--fx-muted);
  font-size: 0.87rem;
}

.fx-cta {
  border-top: 1px solid var(--fx-line);
  background: radial-gradient(560px 260px at 82% 10%, #0e74902e, #0a0b0d 72%);
  padding-top: 62px;
  padding-bottom: 62px;
}

.fx-cta h2 { max-width: 20ch; }

.fx-cta p { color: var(--fx-muted); max-width: 56ch; }

.fx-cta__mail { font-size: 1.05rem; font-weight: 600; }

.fx-foot {
  border-top: 1px solid var(--fx-line);
  background: var(--fx-panel);
  padding-top: 44px;
  padding-bottom: 36px;
  font-size: 0.93rem;
  color: var(--fx-muted);
}

.fx-foot__grid { display: grid; gap: 28px; }

.fx-foot h2 {
  font-size: 0.82rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--fx-text);
  margin-bottom: 12px;
}

.fx-foot ul {
  list-style: none;
  margin: 0;
  padding: 0;
}

.fx-foot li { margin: 0; }

.fx-foot a {
  color: var(--fx-muted);
  border: 0;
  display: inline-block;
  padding: 12px 0;
  min-height: 44px;
}

.fx-foot a:hover { color: var(--fx-accent); }

.fx-foot__note { margin: 0; }

.fx-foot__copy {
  border-top: 1px solid var(--fx-line-2);
  margin-top: 30px;
  padding-top: 20px;
  font-size: 0.86rem;
}

.fx-cookie {
  position: fixed;
  left: 14px;
  right: 14px;
  bottom: 14px;
  z-index: 50;
  border: 1px solid var(--fx-line-2);
  border-radius: var(--fx-radius);
  background: #14161afa;
  padding: 20px 22px;
  box-shadow: 0 10px 30px #00000080;
  display: none;
}

.fx-cookie.is-open { display: block; }

.fx-cookie__text {
  font-size: 0.92rem;
  color: var(--fx-muted);
  margin-bottom: 16px;
  max-width: 68ch;
}

.fx-cookie__acts {
  display: flex;
  gap: 10px;
  flex-wrap: wrap;
}

.fx-cookie__acts .fx-btn { flex: 1 1 auto; }

.fx-404 { padding-top: 90px; padding-bottom: 90px; text-align: left; }

.fx-404 p { color: var(--fx-muted); max-width: 52ch; }

.fx-legal { max-width: 760px; padding-top: 40px; padding-bottom: 56px; }

.fx-legal h2 { font-size: 1.28rem; margin-top: 34px; }

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

.fx-legal strong { color: var(--fx-text); }

.fx-legal__meta { font-size: 0.9rem; color: var(--fx-muted); border-bottom: 1px solid var(--fx-line); padding-bottom: 18px; }

@media (max-width: 619px) {
  .fx-head__inner { min-height: 58px; gap: 10px; }
  .fx-nav { order: 3; width: 100%; flex-wrap: nowrap; overflow-x: auto; gap: 18px; padding-bottom: 2px; }
  .fx-nav a { white-space: nowrap; padding: 10px 0; }
  .fx-head__cta { padding: 12px 18px; font-size: 0.9rem; }
  .fx-cover { padding-top: 52px; padding-bottom: 52px; }
  .fx-split { padding-top: 26px; }
}

@media (min-width: 620px) {
  .fx-gal { grid-template-columns: 1fr 1fr; }
  .fx-myth { grid-template-columns: 1fr 1fr; }
  .fx-cookie__acts .fx-btn { flex: 0 0 auto; }
}

@media (min-width: 760px) {
  .fx-dl { grid-template-columns: 220px 1fr; }
  .fx-dl dt { border-top: 1px solid var(--fx-line); }
  .fx-dl dd { border-top: 1px solid var(--fx-line); padding-top: 12px; }
  .fx-time li { grid-template-columns: 128px 1fr; align-items: baseline; }
  .fx-comp__crit { grid-template-columns: 1fr 1fr; gap: 20px 32px; }
  .fx-foot__grid { grid-template-columns: 1.4fr 1fr 1fr; }
}

@media (min-width: 880px) {
  .fx-cards__grid { grid-template-columns: 1fr 1fr; }
  .fx-comp__after { grid-template-columns: 1fr 1fr; gap: 30px 34px; }
  .fx-zig__row { grid-template-columns: 1fr 420px; gap: 40px; }
  .fx-zig__row--flip .fx-zig__text { order: 2; }
  .fx-zig__row--flip .fx-fig { order: 1; }
  .fx-bento__grid { grid-template-columns: repeat(4, 1fr); }
  .fx-bento__cell--lead { grid-column: span 2; grid-row: span 2; }
  .fx-bento__cell--wide { grid-column: span 2; }
  .fx-offset__grid { grid-template-columns: repeat(12, 1fr); }
  .fx-offset__block--a { grid-column: 1 / 8; }
  .fx-offset__block--b { grid-column: 5 / 13; }
  .fx-offset__block--c { grid-column: 2 / 10; }
  .fx-offset__block--d { grid-column: 4 / 13; }
  .fx-offset__block--full { grid-column: 1 / 13; }
}

@media (min-width: 1000px) {
  .fx-split__grid { grid-template-columns: 1fr 1fr; gap: 54px; }
  .fx-split__aside { position: sticky; top: 96px; }
  .fx-cards__grid--three { grid-template-columns: repeat(3, 1fr); }
  .fx-steps__item { padding-left: 74px; }
}

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

.fx-reveal { opacity: 0; transform: translateY(14px); transition: opacity 320ms ease, transform 320ms ease; }

.fx-reveal.is-in { opacity: 1; transform: none; }