:root {
  --bg-deep: #0B0B0F;
  --bg-surface: #1A1A22;
  --neon-purple: #A933EA;
  --electric-blue: #00E5FF;
  --text-white: #F0F0F0;
  --secondary-gray: #9A9A9A;
  --alert-red: #FF0055;
  --metallic-cyan: #00B8FF;
  --hot-pink: #FF00FF;
  --header-h: 78px;
  --content-max: 1360px;
  --content-narrow: 950px;
  --grid-gap: 24px;
  --border-w: 2px;
  --shadow-neon: 0 0 12px rgba(169, 51, 234, .55);
  --shadow-blue: 0 0 10px rgba(0, 229, 255, .45);
  --font-display: "Orbitron", "Roboto Condensed", "DIN Alternate", "PingFang SC", sans-serif;
  --font-body: "Roboto Condensed", "Helvetica Neue", "PingFang SC", "Microsoft YaHei", sans-serif;
}

*,
*::before,
*::after {
  box-sizing: border-box;
}

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

body {
  margin: 0;
  min-height: 100vh;
  background-color: var(--bg-deep);
  background-image:
    linear-gradient(rgba(169, 51, 234, .045) 1px, transparent 1px),
    linear-gradient(90deg, rgba(0, 229, 255, .045) 1px, transparent 1px);
  background-size: 48px 48px;
  color: var(--text-white);
  font-family: var(--font-body);
  font-size: 1rem;
  line-height: 1.75;
  overflow-wrap: break-word;
}

::selection {
  background: var(--neon-purple);
  color: #fff;
}

img,
svg,
video,
canvas {
  max-width: 100%;
  display: block;
}

button {
  font: inherit;
}

a {
  color: var(--electric-blue);
}

:focus-visible {
  outline: 3px solid var(--electric-blue);
  outline-offset: 3px;
  box-shadow: 0 0 0 8px rgba(0, 229, 255, .22);
}

[hidden] {
  display: none !important;
}

#main-content {
  padding-top: var(--header-h);
  outline: none;
  scroll-margin-top: calc(var(--header-h) + 24px);
}

.container {
  width: min(100% - 48px, var(--content-max));
  margin-inline: auto;
}

.container--narrow {
  max-width: var(--content-narrow);
}

.skip-link {
  position: fixed;
  top: -80px;
  left: 16px;
  z-index: 400;
  padding: 12px 18px;
  background: var(--neon-purple);
  border: 2px solid var(--electric-blue);
  color: #fff;
  font-family: var(--font-display);
  font-size: .85rem;
  font-weight: 700;
  letter-spacing: .06em;
  text-decoration: none;
  box-shadow: 6px 6px 0 rgba(0, 0, 0, .6);
  transition: top .2s ease;
}

.skip-link:focus {
  top: 12px;
}

.site-header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 200;
  height: var(--header-h);
  background: linear-gradient(to bottom, rgba(11, 11, 15, .72), rgba(11, 11, 15, .12));
  border-bottom: 2px solid transparent;
  transition: background .2s ease, border-color .2s ease, box-shadow .2s ease;
}

.site-header.is-scrolled {
  background: rgba(11, 11, 15, .96);
  border-bottom-color: rgba(0, 229, 255, .45);
  box-shadow: 0 12px 36px rgba(0, 0, 0, .45);
}

.site-header__inner {
  position: relative;
  max-width: var(--content-max);
  height: 100%;
  margin-inline: auto;
  padding-inline: 24px;
  display: flex;
  align-items: center;
  gap: 20px;
}

.site-header__progress {
  position: absolute;
  left: 0;
  bottom: -2px;
  width: 0;
  height: 3px;
  background: linear-gradient(90deg, var(--neon-purple), var(--electric-blue));
  box-shadow: 0 0 12px rgba(0, 229, 255, .5);
  z-index: 5;
  pointer-events: none;
}

.site-brand {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  margin-right: auto;
  text-decoration: none;
  flex-shrink: 1;
  min-width: 0;
}

.site-brand__name {
  font-family: var(--font-display);
  font-size: 1.22rem;
  font-weight: 800;
  letter-spacing: .04em;
  color: var(--text-white);
  white-space: nowrap;
  text-shadow: 0 0 10px var(--neon-purple), 0 0 26px rgba(0, 229, 255, .28);
}

.site-brand__mark {
  font-family: var(--font-display);
  font-size: .62rem;
  font-weight: 700;
  letter-spacing: .2em;
  color: var(--electric-blue);
  border: 1px solid var(--electric-blue);
  padding: 4px 6px;
  text-shadow: 0 0 8px rgba(0, 229, 255, .35);
}

.site-nav {
  display: flex;
}

.site-nav__list {
  display: flex;
  flex-wrap: wrap;
  gap: 2px;
  list-style: none;
  margin: 0;
  padding: 0;
}

.site-nav__link {
  display: block;
  padding: 10px 12px;
  border: 1px solid transparent;
  color: var(--secondary-gray);
  font-family: var(--font-display);
  font-size: .82rem;
  font-weight: 700;
  letter-spacing: .08em;
  line-height: 1.2;
  text-decoration: none;
  text-transform: uppercase;
  transition: color .18s ease, border-color .18s ease, background .18s ease, box-shadow .18s ease;
}

.site-nav__link:hover,
.site-nav__link:focus-visible {
  color: var(--neon-purple);
  border-color: rgba(169, 51, 234, .7);
  background: rgba(169, 51, 234, .08);
  box-shadow: 0 0 12px rgba(169, 51, 234, .25);
}

.site-nav__link[aria-current="page"] {
  color: var(--electric-blue);
  border-color: rgba(0, 229, 255, .75);
  background: rgba(0, 229, 255, .08);
  box-shadow: 0 0 12px rgba(0, 229, 255, .2);
}

.site-header__search {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 44px;
  height: 44px;
  background: transparent;
  border: 1px solid var(--secondary-gray);
  color: var(--secondary-gray);
  cursor: pointer;
  transition: color .18s ease, border-color .18s ease, box-shadow .18s ease;
}

.site-header__search:hover,
.site-header__search[aria-expanded="true"] {
  color: var(--neon-purple);
  border-color: var(--neon-purple);
  box-shadow: var(--shadow-neon);
}

.site-header__search-glyph {
  display: inline-block;
  position: relative;
  width: 15px;
  height: 15px;
  border: 2px solid currentColor;
  border-radius: 50%;
}

.site-header__search-glyph::after {
  content: "";
  position: absolute;
  right: -6px;
  bottom: -4px;
  width: 8px;
  height: 2px;
  background: currentColor;
  transform: rotate(45deg);
}

.site-header__toggle {
  display: none;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  width: 44px;
  height: 44px;
  padding: 10px;
  background: transparent;
  border: 1px solid var(--secondary-gray);
  color: var(--secondary-gray);
  cursor: pointer;
  transition: color .18s ease, border-color .18s ease;
}

.site-header__toggle:hover {
  color: var(--neon-purple);
  border-color: var(--neon-purple);
}

.site-header__toggle-bar {
  display: block;
  width: 100%;
  height: 2px;
  background: currentColor;
  transition: transform .2s ease, opacity .2s ease;
}

.site-header__toggle[aria-expanded="true"] .site-header__toggle-bar:nth-child(1) {
  transform: translateY(7px) rotate(45deg);
}

.site-header__toggle[aria-expanded="true"] .site-header__toggle-bar:nth-child(2) {
  opacity: 0;
}

.site-header__toggle[aria-expanded="true"] .site-header__toggle-bar:nth-child(3) {
  transform: translateY(-7px) rotate(-45deg);
}

.site-header__quick-index {
  position: absolute;
  top: calc(100% + 14px);
  right: 0;
  width: min(320px, calc(100vw - 48px));
  padding: 18px;
  background: rgba(26, 26, 34, .98);
  border: 2px solid var(--neon-purple);
  box-shadow: 12px 12px 0 rgba(169, 51, 234, .18), 0 0 24px rgba(0, 229, 255, .16);
}

.site-header__quick-title {
  margin: 0;
  padding-bottom: 10px;
  border-bottom: 1px solid rgba(0, 229, 255, .35);
  color: var(--electric-blue);
  font-family: var(--font-display);
  font-size: .82rem;
  font-weight: 700;
  letter-spacing: .16em;
  text-transform: uppercase;
}

.site-header__quick-list {
  display: grid;
  gap: 6px;
  list-style: none;
  margin: 10px 0 0;
  padding: 0;
}

.site-header__quick-link {
  display: block;
  padding: 10px 12px;
  border-left: 2px solid transparent;
  background: rgba(0, 0, 0, .24);
  color: var(--text-white);
  text-decoration: none;
  transition: border-color .18s ease, color .18s ease, transform .18s ease, background .18s ease;
}

.site-header__quick-link:hover,
.site-header__quick-link:focus-visible {
  background: rgba(0, 229, 255, .08);
  border-left-color: var(--electric-blue);
  color: var(--electric-blue);
  transform: translateX(4px);
}

.site-footer {
  position: relative;
  margin-top: 80px;
  padding: 64px 24px 32px;
  background: var(--bg-deep);
  border-top: 3px solid var(--neon-purple);
  box-shadow: inset 0 16px 40px rgba(0, 0, 0, .32), 0 0 0 1px rgba(0, 229, 255, .15);
}

.site-footer__grid {
  display: grid;
  grid-template-columns: 1.3fr 1fr 1fr 1.3fr;
  gap: 40px;
  max-width: var(--content-max);
  margin-inline: auto;
}

.site-footer__logo {
  display: inline-block;
  margin-bottom: 12px;
  color: var(--text-white);
  font-family: var(--font-display);
  font-size: 1.35rem;
  font-weight: 900;
  letter-spacing: .04em;
  text-decoration: none;
  text-shadow: 0 0 12px var(--neon-purple), 0 0 28px rgba(0, 229, 255, .25);
}

.site-footer__logo-mark {
  color: var(--neon-purple);
  text-shadow: 0 0 10px rgba(169, 51, 234, .65);
}

.site-footer__tagline {
  max-width: 40em;
  margin: 0 0 16px;
  color: var(--secondary-gray);
  font-size: .95rem;
}

.site-footer__trust {
  max-width: 40em;
  margin: 0;
  padding-left: 12px;
  border-left: 2px solid var(--electric-blue);
  color: var(--secondary-gray);
  font-size: .85rem;
}

.site-footer__title {
  margin: 0 0 14px;
  padding-bottom: 8px;
  border-bottom: 1px solid rgba(169, 51, 234, .4);
  color: var(--neon-purple);
  font-family: var(--font-display);
  font-size: .86rem;
  font-weight: 700;
  letter-spacing: .14em;
  text-transform: uppercase;
}

.site-footer__title::before {
  content: "// ";
  color: var(--electric-blue);
}

.site-footer__list {
  display: grid;
  gap: 10px;
  list-style: none;
  margin: 0;
  padding: 0;
}

.site-footer__link {
  display: inline-block;
  width: fit-content;
  color: var(--secondary-gray);
  text-decoration: none;
  border-bottom: 1px solid transparent;
  transition: color .18s ease, border-color .18s ease, text-shadow .18s ease;
}

.site-footer__link:hover,
.site-footer__link:focus-visible {
  color: var(--electric-blue);
  border-bottom-color: var(--electric-blue);
  text-shadow: 0 0 10px rgba(0, 229, 255, .35);
}

.site-footer__meta {
  margin: 0 0 8px;
  color: var(--secondary-gray);
  font-size: .9rem;
}

.site-footer__bottom {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 12px 24px;
  max-width: var(--content-max);
  margin: 48px auto 0;
  padding-top: 22px;
  border-top: 1px solid rgba(255, 255, 255, .1);
}

.site-footer__copyright,
.site-footer__icp {
  margin: 0;
  color: var(--secondary-gray);
  font-size: .85rem;
}

.site-footer__copyright [data-year] {
  color: var(--electric-blue);
}

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 13px 20px;
  border: 2px solid var(--electric-blue);
  background: rgba(0, 229, 255, .08);
  color: var(--electric-blue);
  font-family: var(--font-display);
  font-size: .88rem;
  font-weight: 700;
  letter-spacing: .06em;
  text-decoration: none;
  text-transform: uppercase;
  cursor: pointer;
  box-shadow: 4px 4px 0 var(--electric-blue);
  transition: transform .16s ease, box-shadow .16s ease, background .16s ease, border-radius .16s ease, color .16s ease;
}

.button:hover,
.button:focus-visible {
  background: rgba(0, 229, 255, .18);
  transform: translate(-2px, -2px);
  box-shadow: 6px 6px 0 var(--electric-blue);
}

.button:active {
  transform: skewX(-3deg);
  border-radius: 0 14px 0 14px;
  box-shadow: 0 0 0 var(--electric-blue);
}

.button--purple {
  border-color: var(--neon-purple);
  background: rgba(169, 51, 234, .08);
  color: var(--neon-purple);
  box-shadow: 4px 4px 0 var(--neon-purple);
}

.button--purple:hover,
.button--purple:focus-visible {
  background: rgba(169, 51, 234, .18);
  box-shadow: 6px 6px 0 var(--neon-purple);
}

.button--ghost {
  border-color: var(--secondary-gray);
  background: transparent;
  color: var(--text-white);
  box-shadow: none;
}

.button--ghost:hover,
.button--ghost:focus-visible {
  border-color: var(--electric-blue);
  color: var(--electric-blue);
  box-shadow: 4px 4px 0 rgba(0, 229, 255, .35);
}

.breadcrumbs {
  display: flex;
  margin: 0 0 24px;
}

.breadcrumbs__list {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
  list-style: none;
  margin: 0;
  padding: 0;
}

.breadcrumbs__item {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  color: var(--secondary-gray);
  font-family: var(--font-display);
  font-size: .78rem;
  letter-spacing: .06em;
}

.breadcrumbs__item + .breadcrumbs__item::before {
  content: "//";
  color: var(--neon-purple);
}

.breadcrumbs__link {
  color: var(--secondary-gray);
  text-decoration: none;
  transition: color .16s ease;
}

.breadcrumbs__link:hover,
.breadcrumbs__link:focus-visible {
  color: var(--electric-blue);
}

.section {
  padding: 64px 0;
}

.section__eyebrow {
  display: block;
  margin-bottom: 8px;
  color: var(--electric-blue);
  font-family: var(--font-display);
  font-size: .8rem;
  font-weight: 700;
  letter-spacing: .16em;
  text-transform: uppercase;
}

.section__eyebrow::before {
  content: "▍";
  margin-right: 8px;
  color: var(--neon-purple);
}

.section__title {
  margin: 0;
  color: var(--text-white);
  font-family: var(--font-display);
  font-size: clamp(2rem, 5vw, 3.4rem);
  font-weight: 900;
  line-height: 1.12;
  letter-spacing: .02em;
  text-transform: uppercase;
}

.section__title::before {
  content: "//";
  display: inline-block;
  margin-right: 12px;
  color: var(--neon-purple);
}

.section__lede {
  max-width: 58ch;
  margin: 16px 0 0;
  color: var(--secondary-gray);
  font-size: 1.08rem;
}

.grid {
  display: grid;
  grid-template-columns: repeat(12, 1fr);
  gap: var(--grid-gap);
}

.grid__item--span-4 {
  grid-column: span 4;
}

.grid__item--span-6 {
  grid-column: span 6;
}

.grid__item--span-8 {
  grid-column: span 8;
}

.grid__item--span-12 {
  grid-column: 1 / -1;
}

.status-panel {
  padding: 20px;
  border: 2px solid var(--neon-purple);
  background: rgba(169, 51, 234, .06);
  box-shadow: 8px 8px 0 rgba(169, 51, 234, .22);
}

.status-panel__label {
  display: block;
  margin-bottom: 6px;
  color: var(--electric-blue);
  font-family: var(--font-display);
  font-size: .72rem;
  font-weight: 700;
  letter-spacing: .14em;
  text-transform: uppercase;
}

.status-panel__value {
  color: var(--text-white);
  font-family: var(--font-display);
  font-size: 1.5rem;
  font-weight: 800;
  line-height: 1.2;
}

.visual-box {
  position: relative;
  overflow: hidden;
  border: 2px solid var(--electric-blue);
  background:
    repeating-linear-gradient(135deg, rgba(0, 229, 255, .06) 0 1px, transparent 1px 10px),
    var(--bg-surface);
  box-shadow: 6px 6px 0 rgba(0, 229, 255, .16);
}

.visual-box--landscape {
  aspect-ratio: 16 / 9;
}

.visual-box--portrait {
  aspect-ratio: 3 / 4;
}

.visual-box__img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
}

.visual-box__caption {
  position: absolute;
  left: 12px;
  bottom: 12px;
  margin: 0;
  padding: 4px 10px;
  background: rgba(11, 11, 15, .82);
  border-left: 2px solid var(--neon-purple);
  color: var(--text-white);
  font-size: .82rem;
}

.prose {
  max-width: 920px;
  margin-inline: auto;
  font-size: 1.0625rem;
  line-height: 1.85;
  color: #E8E8E8;
}

.prose h2,
.prose h3,
.prose h4 {
  margin-top: 1.8em;
  color: var(--text-white);
  font-family: var(--font-display);
  line-height: 1.3;
}

.prose h2::before {
  content: "// ";
  color: var(--neon-purple);
}

.prose a {
  color: var(--electric-blue);
  text-decoration-thickness: 1px;
  text-underline-offset: 4px;
}

.prose a:hover {
  color: var(--neon-purple);
}

.prose ul,
.prose ol {
  padding-left: 1.4em;
}

.prose blockquote {
  margin: 1.4em 0;
  padding: 10px 18px;
  border-left: 3px solid var(--neon-purple);
  background: rgba(169, 51, 234, .06);
}

@media (max-width: 1080px) {
  .site-header__inner {
    gap: 14px;
    padding-inline: 18px;
  }

  .site-brand__name {
    font-size: 1.05rem;
  }

  .site-brand__mark {
    font-size: .55rem;
    padding: 3px 5px;
  }

  .site-nav__link {
    padding: 10px 9px;
    font-size: .76rem;
  }

  .site-footer__grid {
    grid-template-columns: 1fr 1fr;
    gap: 36px;
  }

  .site-footer__brand {
    grid-column: 1 / -1;
  }
}

@media (max-width: 860px) {
  .site-header__toggle {
    display: inline-flex;
  }

  .site-nav {
    position: absolute;
    top: calc(100% + 10px);
    left: 0;
    right: 0;
    display: none;
    max-height: calc(100vh - var(--header-h) - 20px);
    overflow-y: auto;
    padding: 8px;
    background: rgba(26, 26, 34, .98);
    border: 2px solid var(--neon-purple);
    box-shadow: 10px 10px 0 rgba(0, 229, 255, .12), 0 18px 50px rgba(0, 0, 0, .5);
  }

  .site-nav[data-open] {
    display: block;
  }

  .site-nav__list {
    flex-direction: column;
    gap: 2px;
  }

  .site-nav__link {
    padding: 13px 14px;
    font-size: .95rem;
  }

  .site-header__search {
    width: 40px;
    height: 40px;
  }

  .site-header__toggle {
    width: 40px;
    height: 40px;
  }

  .site-footer {
    margin-top: 56px;
    padding: 48px 18px 28px;
  }

  .site-footer__bottom {
    margin-top: 32px;
  }
}

@media (max-width: 560px) {
  .site-brand__name {
    font-size: .92rem;
  }

  .site-brand__mark {
    display: none;
  }

  .site-header__inner {
    gap: 8px;
    padding-inline: 12px;
  }

  .site-header__search {
    width: 38px;
    height: 38px;
  }

  .site-header__toggle {
    width: 38px;
    height: 38px;
  }

  .site-header__quick-index {
    right: -6px;
    width: calc(100vw - 24px);
  }

  .site-footer__grid {
    grid-template-columns: 1fr;
    gap: 28px;
  }

  .section {
    padding: 44px 0;
  }

  .grid {
    grid-template-columns: 1fr;
  }

  .grid__item--span-4,
  .grid__item--span-6,
  .grid__item--span-8,
  .grid__item--span-12 {
    grid-column: 1 / -1;
  }
}

@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation-duration: .01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: .01ms !important;
    scroll-behavior: auto !important;
  }
}