:root {
  --obsidian: #071013;
  --magnetite: #10161b;
  --ilmenite: #182129;
  --panel: rgba(20, 28, 34, 0.88);
  --panel-strong: #17222a;
  --quartz: #f8fbff;
  --quartz-soft: #dce6ea;
  --zircon: #8be9ff;
  --rutile: #f2c15e;
  --titanium: #c7d1d8;
  --iron: #c85c3a;
  --monazite: #b891ff;
  --rare-earth: #7df0c2;
  --muted: #aab8bd;
  --line: rgba(220, 230, 234, 0.16);
  --shadow: 0 22px 70px rgba(0, 0, 0, 0.38);
  --heading: "Nunito Sans", "Avenir Next", Arial, sans-serif;
  --body: "Atkinson Hyperlegible", "Source Sans 3", Arial, sans-serif;
  --max-width: 1160px;
}

* {
  box-sizing: border-box;
}

html {
  background: var(--obsidian);
  scroll-behavior: smooth;
}

body {
  background:
    linear-gradient(135deg, rgba(11, 22, 26, 0.96), rgba(7, 16, 19, 0.98)),
    repeating-linear-gradient(110deg, rgba(242, 193, 94, 0.08) 0 1px, transparent 1px 38px);
  color: var(--quartz);
  font-family: var(--body);
  font-size: 18px;
  line-height: 1.55;
  margin: 0;
  min-height: 100vh;
  overflow-x: hidden;
  width: 100%;
}

body::before {
  background:
    linear-gradient(120deg, transparent 0 18%, rgba(139, 233, 255, 0.07) 18% 20%, transparent 20% 48%, rgba(184, 145, 255, 0.08) 48% 50%, transparent 50% 100%),
    linear-gradient(65deg, transparent 0 34%, rgba(242, 193, 94, 0.08) 34% 35%, transparent 35% 100%);
  content: "";
  inset: 0;
  pointer-events: none;
  position: fixed;
  z-index: -1;
}

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

a {
  color: inherit;
}

.skip-link {
  background: var(--rutile);
  color: var(--obsidian);
  left: 1rem;
  padding: 0.65rem 0.85rem;
  position: absolute;
  text-decoration: none;
  top: -5rem;
  z-index: 20;
}

.skip-link:focus {
  top: 1rem;
}

.site-header {
  background: rgba(7, 16, 19, 0.9);
  border-bottom: 1px solid var(--line);
  position: sticky;
  top: 0;
  z-index: 10;
}

.nav {
  align-items: center;
  display: flex;
  gap: 1rem;
  justify-content: space-between;
  margin: 0 auto;
  max-width: var(--max-width);
  padding: 0.8rem 1.25rem;
  width: 100%;
}

.brand-mark {
  color: var(--quartz);
  display: grid;
  flex-shrink: 1;
  font-family: var(--heading);
  font-weight: 900;
  line-height: 0.92;
  text-decoration: none;
  text-transform: uppercase;
}

.brand-mark span:first-child {
  color: var(--zircon);
  text-shadow: 0 0 18px rgba(139, 233, 255, 0.45);
}

.brand-mark span:last-child {
  color: var(--rutile);
  text-shadow: 0 0 18px rgba(242, 193, 94, 0.4);
}

.nav-links {
  align-items: center;
  display: flex;
  gap: 0.95rem;
}

.nav-links a {
  color: var(--muted);
  font-family: var(--heading);
  font-size: 0.92rem;
  font-weight: 800;
  text-decoration: none;
}

.nav-links a:hover,
.nav-links a:focus {
  color: var(--rare-earth);
}

.nav-toggle {
  align-items: center;
  background: transparent;
  border: 1px solid rgba(139, 233, 255, 0.55);
  border-radius: 8px;
  display: none;
  flex-shrink: 0;
  gap: 0.22rem;
  height: 2.7rem;
  justify-content: center;
  width: 2.9rem;
}

.nav-toggle span {
  background: var(--zircon);
  display: block;
  height: 2px;
  width: 1.15rem;
}

.hero {
  background:
    linear-gradient(90deg, rgba(7, 16, 19, 0.98), rgba(7, 16, 19, 0.78) 48%, rgba(7, 16, 19, 0.24)),
    linear-gradient(0deg, rgba(7, 16, 19, 0.9), transparent 34%),
    url("assets/mineral-city-map.svg");
  background-position: center;
  background-size: cover;
  min-height: 86vh;
  position: relative;
}

.hero-inner,
.section,
.page-hero,
.site-footer {
  margin: 0 auto;
  max-width: var(--max-width);
  padding-left: 1.25rem;
  padding-right: 1.25rem;
}

.hero-inner {
  display: flex;
  flex-direction: column;
  justify-content: center;
  min-height: 86vh;
  padding-bottom: 4.5rem;
  padding-top: 4.5rem;
}

.eyebrow {
  color: var(--rare-earth);
  font-family: var(--heading);
  font-size: 0.82rem;
  font-weight: 900;
  letter-spacing: 0;
  margin: 0 0 0.75rem;
  overflow-wrap: anywhere;
  text-transform: uppercase;
}

h1,
h2,
h3 {
  font-family: var(--heading);
  letter-spacing: 0;
  line-height: 1.04;
  margin: 0;
}

h1 {
  font-size: clamp(3rem, 7vw, 6.7rem);
  max-width: 9.8ch;
}

h2 {
  font-size: clamp(2rem, 4.8vw, 3.8rem);
  max-width: 12.5ch;
}

h3 {
  font-size: 1.28rem;
}

p {
  margin: 0;
}

.hero-lede,
.page-lede {
  color: var(--quartz-soft);
  font-size: clamp(1.08rem, 2vw, 1.35rem);
  margin-top: 1.35rem;
  max-width: min(46rem, 100%);
  overflow-wrap: break-word;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.85rem;
  margin-top: 2rem;
}

.button {
  align-items: center;
  border-radius: 8px;
  display: inline-flex;
  font-family: var(--heading);
  font-weight: 900;
  justify-content: center;
  min-height: 3rem;
  min-width: 10.5rem;
  padding: 0.85rem 1rem;
  text-decoration: none;
}

.button.primary {
  background: var(--rutile);
  box-shadow: 0 0 28px rgba(242, 193, 94, 0.28);
  color: var(--obsidian);
}

.button.secondary {
  border: 1px solid rgba(139, 233, 255, 0.62);
  color: var(--zircon);
}

.intro-band {
  background: linear-gradient(90deg, var(--rutile), var(--rare-earth), var(--zircon));
  color: var(--obsidian);
  font-family: var(--heading);
  font-weight: 900;
  padding: 0.9rem 1.25rem;
}

.intro-band div {
  margin: 0 auto;
  max-width: var(--max-width);
  overflow-wrap: break-word;
}

.section {
  padding-bottom: 5rem;
  padding-top: 5rem;
}

.section.wide {
  max-width: none;
  padding-left: 0;
  padding-right: 0;
}

.section.wide > * {
  margin-left: auto;
  margin-right: auto;
  max-width: var(--max-width);
  padding-left: 1.25rem;
  padding-right: 1.25rem;
}

.section-heading {
  max-width: 780px;
}

.section-heading p:not(.eyebrow) {
  color: var(--muted);
  margin-top: 1rem;
  overflow-wrap: break-word;
}

.brief-grid,
.element-grid,
.module-grid,
.two-col,
.roadmap-grid,
.visitor-grid,
.lab-preview-grid {
  display: grid;
  gap: 1rem;
}

.brief-grid {
  grid-template-columns: repeat(3, minmax(0, 1fr));
  margin-top: 2rem;
}

.brief-card,
.element-card,
.module-card,
.moonshot-panel,
.source-panel,
.roadmap-card,
.contact-panel,
.visitor-card,
.lab-preview-card {
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: 8px;
  box-shadow: var(--shadow);
  padding: 1.15rem;
}

.brief-card {
  border-top: 4px solid var(--zircon);
  min-height: 18rem;
}

.brief-card:nth-child(3n + 2) {
  border-top-color: var(--rutile);
}

.brief-card:nth-child(3n) {
  border-top-color: var(--monazite);
}

.brief-card h3,
.element-card h3,
.module-card h3,
.roadmap-card h3,
.visitor-card h3,
.lab-preview-card h3 {
  color: var(--quartz);
}

.brief-card p:not(.eyebrow),
.element-card p,
.roadmap-card p,
.contact-panel p,
.source-panel p,
.visitor-card p,
.lab-preview-card p {
  color: var(--muted);
  margin-top: 0.7rem;
}

.card-meta,
.element-colour {
  color: var(--rutile) !important;
  font-family: var(--heading);
  font-size: 0.92rem;
  font-weight: 900;
}

.card-link,
.mini-link {
  color: var(--rare-earth);
  display: inline-flex;
  font-family: var(--heading);
  font-weight: 900;
  margin-top: 1rem;
  text-decoration: none;
}

.card-link:hover,
.card-link:focus,
.mini-link:hover,
.mini-link:focus {
  color: var(--quartz);
}

.element-grid {
  grid-template-columns: repeat(6, minmax(0, 1fr));
  margin-top: 2rem;
}

.element-card strong {
  color: var(--rutile);
  display: block;
  font-family: var(--heading);
  font-size: clamp(1.7rem, 3vw, 2.3rem);
  line-height: 1;
  margin-bottom: 0.8rem;
}

.element-card.compact strong {
  font-size: 1.7rem;
}

.visual-band {
  background:
    linear-gradient(180deg, rgba(7, 16, 19, 0), rgba(7, 16, 19, 0.78)),
    linear-gradient(90deg, rgba(139, 233, 255, 0.12), rgba(242, 193, 94, 0.12), rgba(184, 145, 255, 0.14));
  border-bottom: 1px solid var(--line);
  border-top: 1px solid var(--line);
}

.roadmap-grid {
  grid-template-columns: repeat(4, minmax(0, 1fr));
  margin-top: 2rem;
}

.visitor-grid {
  grid-template-columns: repeat(4, minmax(0, 1fr));
  margin-top: 2rem;
}

.visitor-card {
  border-top: 4px solid var(--rare-earth);
  min-height: 15rem;
}

.visitor-card:nth-child(2) {
  border-top-color: var(--zircon);
}

.visitor-card:nth-child(3) {
  border-top-color: var(--rutile);
}

.visitor-card:nth-child(4) {
  border-top-color: var(--monazite);
}

.lab-preview-grid {
  grid-template-columns: repeat(3, minmax(0, 1fr));
  margin-top: 2rem;
}

.lab-preview-card {
  min-height: 13rem;
}

.roadmap-card span,
.module-card span {
  align-items: center;
  background: rgba(139, 233, 255, 0.12);
  border: 1px solid rgba(139, 233, 255, 0.24);
  border-radius: 999px;
  color: var(--zircon);
  display: inline-flex;
  font-family: var(--heading);
  font-weight: 900;
  height: 2.35rem;
  justify-content: center;
  margin-bottom: 0.85rem;
  min-width: 2.35rem;
  padding: 0 0.65rem;
}

.contact-panel {
  background:
    linear-gradient(135deg, rgba(242, 193, 94, 0.18), rgba(139, 233, 255, 0.1)),
    var(--panel-strong);
}

.site-footer {
  align-items: start;
  border-top: 1px solid var(--line);
  color: var(--muted);
  display: flex;
  gap: 1rem;
  justify-content: space-between;
  padding-bottom: 2rem;
  padding-top: 1.5rem;
}

.footer-copy {
  max-width: 48rem;
}

.footer-note {
  color: rgba(170, 184, 189, 0.84);
  font-size: 0.92rem;
  margin-top: 0.35rem;
}

.footer-links {
  display: flex;
  flex-wrap: wrap;
  gap: 0.65rem;
  justify-content: flex-end;
  max-width: 34rem;
}

.footer-links a,
.footer-links small {
  border: 1px solid rgba(220, 230, 234, 0.14);
  border-radius: 8px;
  color: var(--zircon);
  font-family: var(--heading);
  font-size: 0.85rem;
  font-weight: 800;
  padding: 0.42rem 0.55rem;
  text-decoration: none;
}

.page-hero {
  background:
    linear-gradient(90deg, rgba(7, 16, 19, 0.98), rgba(7, 16, 19, 0.76)),
    url("assets/mineral-city-map.svg");
  background-position: center;
  background-size: cover;
  max-width: none;
  min-height: 52vh;
  padding-bottom: 5rem;
  padding-top: 5.5rem;
}

.page-hero > * {
  margin-left: auto;
  margin-right: auto;
  max-width: var(--max-width);
}

.page-hero h1 {
  max-width: 12ch;
}

.source-line {
  color: var(--rutile);
  font-family: var(--heading);
  font-size: 0.95rem;
  font-weight: 900;
  margin-top: 1.4rem;
  overflow-wrap: anywhere;
  word-break: break-word;
}

.two-col {
  align-items: start;
  grid-template-columns: minmax(0, 0.9fr) minmax(280px, 0.62fr);
}

.source-panel h2,
.moonshot-panel h2 {
  font-size: clamp(1.65rem, 3vw, 2.4rem);
  max-width: none;
}

.brief-points,
.experiment-list {
  color: var(--quartz-soft);
  display: grid;
  gap: 0.65rem;
  margin: 1.25rem 0 0;
  padding-left: 1.25rem;
}

.brief-points li::marker,
.experiment-list li::marker {
  color: var(--rare-earth);
}

.moonshot-panel {
  border-color: rgba(242, 193, 94, 0.32);
}

.moonshot-panel p {
  color: var(--quartz-soft);
  font-size: 1.1rem;
  margin-top: 1rem;
}

.module-grid {
  grid-template-columns: repeat(4, minmax(0, 1fr));
  margin-top: 2rem;
}

.module-card {
  min-height: 10.5rem;
}

.interactive-section {
  background:
    linear-gradient(135deg, rgba(139, 233, 255, 0.08), rgba(242, 193, 94, 0.08)),
    rgba(7, 16, 19, 0.68);
  border-bottom: 1px solid var(--line);
  border-top: 1px solid var(--line);
  max-width: none;
}

.interactive-section > * {
  margin-left: auto;
  margin-right: auto;
  max-width: var(--max-width);
}

.lab-shell {
  margin-top: 2rem;
}

.dial-grid,
.layer-lab,
.kiosk-lab,
.path-lab,
.archipelago-lab {
  display: grid;
  gap: 1rem;
  grid-template-columns: minmax(0, 0.9fr) minmax(280px, 0.75fr);
}

.control-stack,
.dial-readout,
.metric-panel,
.layer-detail,
.kiosk-screen,
.path-detail,
.island-detail,
.reality-card {
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: 8px;
  box-shadow: var(--shadow);
  padding: 1.15rem;
}

.range-control {
  background: rgba(7, 16, 19, 0.48);
  border: 1px solid rgba(139, 233, 255, 0.16);
  border-radius: 8px;
  display: grid;
  gap: 0.75rem;
  padding: 1rem;
}

.range-control + .range-control {
  margin-top: 0.75rem;
}

.range-top {
  align-items: center;
  display: flex;
  gap: 1rem;
  justify-content: space-between;
}

.range-top strong,
.range-top em {
  font-family: var(--heading);
  font-style: normal;
  font-weight: 900;
}

.range-top em {
  color: var(--rutile);
}

.range-control input {
  accent-color: var(--rare-earth);
  width: 100%;
}

.dial-readout strong,
.metric-panel strong {
  color: var(--rutile);
  display: block;
  font-family: var(--heading);
  font-size: clamp(2.4rem, 5vw, 4rem);
  line-height: 1;
}

.dial-readout h3 {
  color: var(--zircon);
  margin-top: 1rem;
}

.dial-readout p,
.metric-panel p,
.layer-detail p,
.kiosk-screen p,
.path-detail p,
.island-detail p {
  color: var(--muted);
  margin-top: 0.75rem;
}

.dial-bar {
  background: rgba(220, 230, 234, 0.14);
  border-radius: 999px;
  height: 0.8rem;
  margin-top: 1rem;
  overflow: hidden;
}

.dial-bar span {
  background: linear-gradient(90deg, var(--rare-earth), var(--zircon), var(--rutile));
  display: block;
  height: 100%;
  transition: width 180ms ease;
}

.layer-visual {
  border: 1px solid var(--line);
  border-radius: 8px;
  display: grid;
  min-height: 360px;
  overflow: hidden;
}

.layer-band {
  background: rgba(20, 28, 34, 0.9);
  border: 0;
  border-bottom: 1px solid rgba(220, 230, 234, 0.1);
  color: var(--quartz);
  cursor: pointer;
  font: inherit;
  font-family: var(--heading);
  font-weight: 900;
  padding: 0.8rem;
  text-align: left;
}

.layer-band:nth-child(1) {
  background: linear-gradient(90deg, rgba(125, 240, 194, 0.34), rgba(7, 16, 19, 0.78));
}

.layer-band:nth-child(2) {
  background: linear-gradient(90deg, rgba(242, 193, 94, 0.42), rgba(24, 33, 41, 0.92));
}

.layer-band:nth-child(3) {
  background: linear-gradient(90deg, rgba(139, 233, 255, 0.32), rgba(7, 16, 19, 0.82));
}

.layer-band:nth-child(4) {
  background: linear-gradient(90deg, rgba(184, 145, 255, 0.38), rgba(7, 16, 19, 0.82));
}

.layer-band:nth-child(5) {
  background: linear-gradient(90deg, rgba(200, 92, 58, 0.36), rgba(7, 16, 19, 0.94));
}

.layer-band.is-active,
.layer-button.is-active,
.mode-button.is-active,
.path-step.is-active,
.island-button.is-active {
  border-color: rgba(242, 193, 94, 0.72);
  box-shadow: inset 0 0 0 1px rgba(242, 193, 94, 0.32), 0 0 22px rgba(242, 193, 94, 0.12);
}

.layer-controls,
.mode-buttons,
.island-buttons {
  display: grid;
  gap: 0.65rem;
}

.layer-button,
.mode-button,
.island-button {
  background: rgba(7, 16, 19, 0.54);
  border: 1px solid rgba(139, 233, 255, 0.22);
  border-radius: 8px;
  color: var(--zircon);
  cursor: pointer;
  font-family: var(--heading);
  font-size: 1rem;
  font-weight: 900;
  padding: 0.8rem;
  text-align: left;
}

.priority-grid,
.chip-list {
  display: flex;
  flex-wrap: wrap;
  gap: 0.6rem;
  margin-top: 1rem;
}

.priority-grid span,
.chip-list span {
  background: rgba(139, 233, 255, 0.1);
  border: 1px solid rgba(139, 233, 255, 0.22);
  border-radius: 999px;
  color: var(--quartz-soft);
  font-family: var(--heading);
  font-size: 0.88rem;
  font-weight: 800;
  padding: 0.45rem 0.6rem;
}

.path-rail {
  align-items: center;
  background:
    linear-gradient(90deg, transparent 0 7%, rgba(139, 233, 255, 0.32) 7% 93%, transparent 93%),
    rgba(7, 16, 19, 0.48);
  border: 1px solid var(--line);
  border-radius: 8px;
  display: grid;
  gap: 0.5rem;
  grid-template-columns: repeat(5, minmax(0, 1fr));
  min-height: 9rem;
  padding: 1rem;
}

.path-step {
  background: var(--panel-strong);
  border: 1px solid rgba(139, 233, 255, 0.24);
  border-radius: 999px;
  color: var(--rutile);
  cursor: pointer;
  font-family: var(--heading);
  font-size: 1.2rem;
  font-weight: 900;
  height: 3rem;
  justify-self: center;
  width: 3rem;
}

.reality-grid {
  display: grid;
  gap: 1rem;
  grid-template-columns: repeat(4, minmax(0, 1fr));
}

.reality-card h3 {
  color: var(--zircon);
}

.island-buttons {
  grid-template-columns: repeat(2, minmax(0, 1fr));
}

.more-briefs {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
  margin-top: 1.25rem;
}

.mini-link {
  border: 1px solid rgba(139, 233, 255, 0.22);
  border-radius: 8px;
  margin-top: 0;
  padding: 0.55rem 0.7rem;
}

@media (max-width: 980px) {
  .brief-grid,
  .element-grid,
  .roadmap-grid,
  .module-grid,
  .visitor-grid,
  .lab-preview-grid,
  .reality-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .two-col,
  .dial-grid,
  .layer-lab,
  .kiosk-lab,
  .path-lab,
  .archipelago-lab {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 980px) {
  body {
    font-size: 16px;
  }

  .nav {
    align-items: center;
  }

  .nav-toggle {
    display: inline-flex;
    flex-direction: column;
  }

  .nav-links {
    background: var(--obsidian);
    border: 1px solid var(--line);
    border-radius: 8px;
    display: none;
    padding: 0.75rem;
    position: absolute;
    right: 1rem;
    top: 4.2rem;
    width: min(18rem, calc(100vw - 2rem));
  }

  .nav-links.is-open {
    display: grid;
  }

  .nav-links a {
    padding: 0.4rem 0;
  }

  .hero {
    background:
      linear-gradient(90deg, rgba(7, 16, 19, 0.98), rgba(7, 16, 19, 0.72)),
      url("assets/mineral-city-map.svg");
    background-position: 58% center;
    background-size: cover;
  }

  .hero-inner,
  .page-hero {
    min-height: auto;
    padding-bottom: 4rem;
    padding-top: 4rem;
  }

  h1 {
    font-size: clamp(3rem, 13vw, 4.7rem);
    max-width: 8.8ch;
  }

  .brief-grid,
  .element-grid,
  .roadmap-grid,
  .module-grid,
  .visitor-grid,
  .lab-preview-grid,
  .reality-grid,
  .island-buttons {
    grid-template-columns: 1fr;
  }

  .site-footer {
    flex-direction: column;
  }

  .footer-links {
    justify-content: flex-start;
  }

  .button {
    width: 100%;
  }
}