:root {
  --bg: #050705;
  --panel: #0b0f0b;
  --panel-2: #11160f;
  --text: #eef4e8;
  --muted: #9ca79a;
  --faint: #5f6b5f;
  --line: rgba(190, 255, 0, 0.18);
  --hard-line: rgba(238, 244, 232, 0.2);
  --matrix: #b7ff00;
  --matrix-soft: rgba(183, 255, 0, 0.16);
  --ink: #050705;
  --mono: "IBM Plex Mono", "SFMono-Regular", Consolas, monospace;
  --serif: "Iowan Old Style", "Source Serif 4", Georgia, serif;
  --sans: "Avenir Next", "Neue Haas Grotesk Text", Helvetica, sans-serif;
}

* {
  box-sizing: border-box;
}

html {
  background: var(--bg);
  color: var(--text);
  scroll-behavior: smooth;
}

body {
  margin: 0;
  min-height: 100vh;
  font-family: var(--sans);
  background:
    linear-gradient(rgba(183, 255, 0, 0.025) 1px, transparent 1px),
    linear-gradient(90deg, rgba(183, 255, 0, 0.018) 1px, transparent 1px),
    radial-gradient(circle at 70% 0%, rgba(183, 255, 0, 0.08), transparent 34rem),
    var(--bg);
  background-size: 42px 42px, 42px 42px, auto, auto;
}

body::before {
  content: "";
  position: fixed;
  inset: 0;
  pointer-events: none;
  opacity: 0.08;
  background-image: repeating-linear-gradient(0deg, transparent 0 2px, #fff 3px);
  mix-blend-mode: overlay;
}

a {
  color: inherit;
  text-decoration: none;
}

.main {
  min-height: 100vh;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 20;
  display: flex;
  justify-content: space-between;
  align-items: center;
  min-height: 72px;
  padding: 0 4vw;
  border-bottom: 1px solid var(--hard-line);
  background: rgba(5, 7, 5, 0.88);
  backdrop-filter: blur(18px);
}

.brand-mark {
  display: flex;
  align-items: center;
  width: 104px;
}

.brand-mark img {
  display: block;
  width: 100%;
  height: auto;
  filter: drop-shadow(0 0 12px rgba(178, 255, 0, 0.24));
}

.header-actions {
  display: flex;
  align-items: center;
  gap: clamp(1rem, 2.6vw, 2rem);
}

.site-nav {
  display: flex;
  gap: clamp(1rem, 3vw, 2.5rem);
  align-items: center;
  color: var(--text);
  font: 500 0.92rem/1 var(--sans);
}

.site-nav a,
.site-nav span {
  display: inline-block;
  padding: 0.35rem 0;
}

.site-nav .active {
  color: var(--matrix);
  border-bottom: 1px solid var(--matrix);
}

.hero {
  display: grid;
  grid-template-columns: minmax(0, 1.05fr) minmax(280px, 0.95fr);
  min-height: calc(100vh - 72px);
  border-bottom: 1px solid var(--hard-line);
}

.hero-copy {
  display: flex;
  flex-direction: column;
  justify-content: center;
  padding: clamp(3rem, 8vw, 7rem) 4vw;
}

.hero-mark {
  margin: 0;
  width: min(38vw, 520px);
  min-width: 280px;
}

.hero-mark img {
  display: block;
  width: 100%;
  height: auto;
}

.hero h2,
.page-intro h1 {
  max-width: 940px;
  margin: 1.5rem 0 0;
  font: 500 clamp(2.3rem, 5vw, 5.2rem)/0.96 var(--serif);
  letter-spacing: 0;
}

.hero p,
.page-intro p,
.about-band p {
  max-width: 620px;
  color: var(--muted);
  font: 400 1.05rem/1.75 var(--sans);
}

.button-link {
  align-self: flex-start;
  margin-top: 2rem;
  padding: 1rem 1.35rem;
  color: var(--ink);
  background: var(--matrix);
  font: 800 0.78rem/1 var(--mono);
  text-transform: uppercase;
  transition: transform 180ms ease, box-shadow 180ms ease;
}

.button-link:hover {
  transform: translateY(-2px);
  box-shadow: 8px 8px 0 rgba(183, 255, 0, 0.22);
}

.lab-diagram {
  position: relative;
  min-height: 520px;
  border-left: 1px solid var(--hard-line);
  overflow: hidden;
  background:
    linear-gradient(rgba(238, 244, 232, 0.08) 1px, transparent 1px),
    linear-gradient(90deg, rgba(238, 244, 232, 0.06) 1px, transparent 1px);
  background-size: 64px 64px;
}

.diagram-label {
  position: absolute;
  right: 3rem;
  top: 3rem;
  max-width: 15rem;
  color: var(--matrix);
  font-size: 0.75rem;
}

.reactor {
  position: absolute;
  inset: 18% 12% 14% 12%;
  border: 1px solid var(--hard-line);
}

.reactor::before,
.reactor::after {
  content: "";
  position: absolute;
  background: var(--hard-line);
}

.reactor::before {
  left: 50%;
  top: -12%;
  width: 1px;
  height: 124%;
}

.reactor::after {
  top: 50%;
  left: -12%;
  width: 124%;
  height: 1px;
}

.ring,
.core {
  position: absolute;
  border: 1px solid var(--matrix);
}

.ring-a {
  inset: 16% 22%;
}

.ring-b {
  inset: 28% 34%;
  opacity: 0.72;
}

.core {
  inset: 42% 45%;
  background: var(--matrix-soft);
}

.axis {
  position: absolute;
  background: var(--matrix);
  opacity: 0.5;
}

.axis-x {
  left: 16%;
  right: 16%;
  bottom: 18%;
  height: 1px;
}

.axis-y {
  top: 16%;
  bottom: 16%;
  left: 18%;
  width: 1px;
}

.lab-log,
.notes-page,
.about-band {
  padding: clamp(3rem, 7vw, 6rem) 4vw;
}

.section-heading {
  margin-bottom: 2rem;
}

.section-heading h2,
.about-band h2 {
  margin: 0;
  color: var(--matrix);
  font: 700 1.35rem/1 var(--mono);
  text-transform: uppercase;
}

.section-heading p {
  color: var(--muted);
}

.post-list {
  border-top: 1px solid var(--hard-line);
}

.post-row {
  display: grid;
  grid-template-columns: 9rem minmax(0, 1fr) minmax(12rem, 0.55fr) 3rem;
  gap: 1rem;
  align-items: center;
  min-height: 4.8rem;
  border-bottom: 1px solid rgba(238, 244, 232, 0.12);
  color: var(--text);
}

.post-row:hover {
  background: rgba(183, 255, 0, 0.045);
}

.post-head {
  min-height: 2.8rem;
  color: var(--muted);
  font: 700 0.72rem/1 var(--mono);
  text-transform: uppercase;
}

.mono {
  font-family: var(--mono);
}

.date {
  color: var(--muted);
  font-size: 0.86rem;
}

.post-title {
  font: 500 1rem/1.35 var(--mono);
}

.tag-line {
  display: flex;
  flex-wrap: wrap;
  gap: 0.65rem;
}

.tag {
  color: var(--matrix);
  font: 700 0.74rem/1 var(--mono);
}

.arrow {
  color: var(--matrix);
  text-align: right;
  font-family: var(--mono);
}

.text-link {
  display: inline-block;
  margin-top: 2rem;
  color: var(--matrix);
  font: 700 0.82rem/1 var(--mono);
  text-transform: uppercase;
}

.about-band {
  border-top: 1px solid var(--hard-line);
  border-bottom: 1px solid var(--hard-line);
}

.page-intro {
  max-width: 980px;
  margin-bottom: 3rem;
}

.tag-cloud {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
  margin-bottom: 2rem;
}

.tag-cloud span {
  color: var(--matrix);
  border-bottom: 1px solid var(--line);
}

.article-shell {
  display: grid;
  grid-template-columns: minmax(180px, 0.7fr) minmax(0, 3.1fr) minmax(180px, 0.75fr);
  border-bottom: 1px solid var(--hard-line);
}

.article-main {
  min-width: 0;
  padding: clamp(3rem, 6vw, 5rem) clamp(2rem, 5vw, 4rem);
  border-inline: 1px solid var(--hard-line);
}

.article-main h1 {
  max-width: 900px;
  margin: 0;
  color: var(--matrix);
  font: 500 clamp(2.6rem, 5vw, 5.4rem)/0.98 var(--serif);
}

.article-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 0.9rem;
  margin: 1.4rem 0 2.5rem;
  color: var(--muted);
  font-size: 0.75rem;
  text-transform: uppercase;
}

.article-rail {
  position: sticky;
  top: 72px;
  align-self: start;
  max-height: calc(100vh - 72px);
  overflow: auto;
  padding: clamp(2rem, 4vw, 3rem) 1.4rem;
  color: var(--muted);
  font: 400 0.78rem/1.65 var(--mono);
  scrollbar-width: thin;
  scrollbar-color: var(--line) transparent;
}

.article-rail h2 {
  margin: 2rem 0 1rem;
  color: var(--text);
  font-size: 0.72rem;
  text-transform: uppercase;
}

.article-rail ol {
  padding-left: 1.2rem;
}

.article-rail li {
  transition: color 180ms ease;
}

.article-rail li.active {
  color: var(--matrix);
}

.article-rail li.active a {
  color: var(--matrix);
}

.article-rail li.active::marker {
  color: var(--matrix);
}

.article-rail a:hover,
.back-link:hover {
  color: var(--matrix);
}

.side-tag {
  display: block;
  color: var(--matrix);
}

.article-content {
  max-width: 860px;
}

.article-content h2,
.article-content h3 {
  margin: 2.8rem 0 1rem;
  color: var(--text);
  font-family: var(--serif);
  line-height: 1.08;
}

.article-content h2 {
  font-size: clamp(1.75rem, 3vw, 2.5rem);
}

.article-content h3 {
  font-size: 1.45rem;
}

.article-content p,
.article-content li {
  color: #dbe4d6;
  font: 400 1.08rem/1.85 var(--serif);
}

.article-content a {
  color: var(--matrix);
  border-bottom: 1px solid var(--matrix);
}

.article-content blockquote {
  margin: 2rem 0;
  padding: 0.25rem 0 0.25rem 1.4rem;
  border-left: 3px solid var(--matrix);
}

.article-content blockquote p {
  color: var(--text);
  font-size: 1.45rem;
  line-height: 1.45;
}

.article-content pre {
  overflow-x: auto;
  padding: 1.2rem;
  border: 1px solid var(--line);
  background: #020302;
  color: var(--matrix);
}

.article-content code {
  font-family: var(--mono);
  font-size: 0.92em;
}

.article-content :not(pre) > code {
  padding: 0.12rem 0.32rem;
  color: var(--matrix);
  background: var(--matrix-soft);
}

.site-footer {
  display: grid;
  grid-template-columns: 1fr auto 1fr;
  gap: 2rem;
  align-items: end;
  padding: 2rem 4vw;
  color: var(--muted);
  font: 400 0.78rem/1.5 var(--mono);
}

.site-footer nav {
  display: flex;
  gap: 1.2rem;
  justify-content: center;
}

.site-footer nav a:hover {
  color: var(--matrix);
}

.footer-center {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 1rem;
}

.language-switcher {
  display: flex;
  gap: 0.7rem;
  align-items: center;
  justify-content: center;
}

.header-language-switcher {
  position: relative;
  padding-left: clamp(0.8rem, 2vw, 1.4rem);
}

.header-language-switcher::before {
  content: "";
  position: absolute;
  left: 0;
  top: 50%;
  width: 1px;
  height: 1.5rem;
  background: var(--hard-line);
  transform: translateY(-50%);
}

.flag-avatar {
  display: inline-flex;
  width: 34px;
  height: 34px;
  padding: 2px;
  border: 1px solid rgba(238, 244, 232, 0.24);
  border-radius: 999px;
  opacity: 0.62;
  transition: opacity 180ms ease, border-color 180ms ease, transform 180ms ease;
}

.flag-avatar img {
  display: block;
  width: 100%;
  height: 100%;
  border-radius: inherit;
}

.flag-avatar:hover,
.flag-avatar.active {
  opacity: 1;
  border-color: var(--matrix);
}

.flag-avatar:hover {
  transform: translateY(-2px);
}

.site-footer > p {
  text-align: right;
}

@media (max-width: 980px) {
  .hero,
  .article-shell {
    grid-template-columns: 1fr;
  }

  .hero {
    min-height: auto;
  }

  .lab-diagram {
    min-height: 360px;
    border-left: 0;
    border-top: 1px solid var(--hard-line);
  }

  .article-rail {
    display: none;
  }

  .article-main {
    border-inline: 0;
  }

  .post-row {
    grid-template-columns: 7rem minmax(0, 1fr) 2rem;
  }

  .post-row .tag-line,
  .post-head span:nth-child(3) {
    display: none;
  }

  .site-footer {
    grid-template-columns: 1fr;
    align-items: start;
  }

  .footer-center {
    align-items: flex-start;
  }

  .site-footer nav {
    justify-content: flex-start;
  }

  .site-footer > p {
    text-align: left;
  }
}

@media (max-width: 640px) {
  .site-header {
    min-height: 64px;
    padding: 0 1rem;
  }

  .site-nav {
    gap: 0.85rem;
    font-size: 0.82rem;
  }

  .header-actions {
    gap: 0.8rem;
  }

  .header-language-switcher {
    gap: 0.45rem;
    padding-left: 0.75rem;
  }

  .flag-avatar {
    width: 30px;
    height: 30px;
  }

  .hero-copy,
  .lab-log,
  .notes-page,
  .about-band {
    padding-inline: 1rem;
  }

  .brand-mark {
    width: 86px;
  }

  .hero-mark {
    width: min(78vw, 340px);
    min-width: 0;
  }

  .hero h2,
  .page-intro h1 {
    font-size: 2.45rem;
  }

  .post-row {
    grid-template-columns: 1fr 2rem;
    gap: 0.75rem;
    padding: 1rem 0;
  }

  .post-row .date,
  .post-head {
    display: none;
  }

  .article-main {
    padding: 2.5rem 1rem;
  }

  .article-main h1 {
    font-size: 2.5rem;
  }
}