:root {
  color-scheme: dark;
  --ink: #f4f0e8;
  --muted: #999997;
  --faint: #656568;
  --line: rgba(255, 255, 255, 0.11);
  --line-strong: rgba(255, 255, 255, 0.2);
  --space: #08090c;
  --space-soft: #0e1014;
  --panel: rgba(255, 255, 255, 0.035);
  --mars: #e85c36;
  --mars-warm: #ff8b57;
  --acid: #d9ef72;
  --page-x: clamp(1.25rem, 4vw, 4.75rem);
  --header-h: 5.5rem;
  --radius: 1.25rem;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  min-width: 320px;
  background:
    radial-gradient(circle at 68% 0%, rgba(103, 47, 34, 0.16), transparent 32rem),
    var(--space);
  color: var(--ink);
  font-family: Inter, ui-sans-serif, -apple-system, BlinkMacSystemFont, "Segoe UI",
    "PingFang SC", "Microsoft YaHei", sans-serif;
  font-size: 16px;
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
}

body::before {
  position: fixed;
  inset: 0;
  z-index: -1;
  background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 180 180' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='.9' numOctaves='3' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)' opacity='.16'/%3E%3C/svg%3E");
  content: "";
  opacity: 0.11;
  pointer-events: none;
}

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

button {
  color: inherit;
  font: inherit;
}

.skip-link {
  position: fixed;
  top: 0.75rem;
  left: 0.75rem;
  z-index: 100;
  padding: 0.65rem 1rem;
  background: var(--ink);
  color: var(--space);
  transform: translateY(-150%);
  transition: transform 180ms ease;
}

.skip-link:focus {
  transform: translateY(0);
}

.site-shell {
  width: 100%;
  overflow: clip;
}

.site-header {
  position: fixed;
  top: 0;
  left: 0;
  z-index: 50;
  display: flex;
  align-items: center;
  justify-content: space-between;
  width: 100%;
  height: var(--header-h);
  padding: 0 var(--page-x);
  border-bottom: 1px solid transparent;
  transition: background-color 250ms ease, border-color 250ms ease;
}

.site-header.is-scrolled {
  border-color: var(--line);
  background: rgba(8, 9, 12, 0.78);
  -webkit-backdrop-filter: blur(18px);
  backdrop-filter: blur(18px);
}

.brand {
  display: inline-flex;
  gap: 0.7rem;
  align-items: center;
  font-size: 0.92rem;
  font-weight: 600;
  letter-spacing: -0.02em;
}

.brand-mark {
  position: relative;
  display: inline-block;
  width: 1.15rem;
  height: 1.15rem;
  overflow: hidden;
  border-radius: 50%;
  background: linear-gradient(145deg, var(--mars-warm), #93311d 70%);
  box-shadow: 0 0 1.5rem rgba(232, 92, 54, 0.3);
}

.brand-mark::after {
  position: absolute;
  top: 0.22rem;
  left: -0.15rem;
  width: 1.1rem;
  height: 0.3rem;
  border-radius: 50%;
  background: rgba(66, 20, 14, 0.35);
  content: "";
  transform: rotate(-16deg);
}

.site-nav {
  display: flex;
  gap: 2.2rem;
  align-items: center;
}

.site-nav a {
  position: relative;
  color: #bebebc;
  font-size: 0.8rem;
  letter-spacing: 0.08em;
  transition: color 180ms ease;
}

.site-nav a::after {
  position: absolute;
  right: 0;
  bottom: -0.35rem;
  left: 0;
  height: 1px;
  background: var(--mars-warm);
  content: "";
  transform: scaleX(0);
  transform-origin: right;
  transition: transform 200ms ease;
}

.site-nav a:hover,
.site-nav a:focus-visible {
  color: var(--ink);
}

.site-nav a:hover::after,
.site-nav a:focus-visible::after {
  transform: scaleX(1);
  transform-origin: left;
}

.menu-toggle {
  display: none;
}

.hero {
  position: relative;
  display: grid;
  min-height: 100svh;
  padding: calc(var(--header-h) + 4rem) var(--page-x) 4.25rem;
  align-items: center;
  isolation: isolate;
}

.hero::before,
.hero::after {
  position: absolute;
  z-index: -2;
  content: "";
  pointer-events: none;
}

.hero::before {
  inset: 0;
  background-image:
    linear-gradient(rgba(255, 255, 255, 0.025) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255, 255, 255, 0.025) 1px, transparent 1px);
  background-size: 5rem 5rem;
  mask-image: linear-gradient(to bottom, black 10%, transparent 88%);
}

.hero::after {
  top: 15%;
  right: 12%;
  width: 38vw;
  height: 38vw;
  border-radius: 50%;
  background: rgba(195, 67, 37, 0.08);
  filter: blur(7rem);
}

.hero-copy {
  position: relative;
  z-index: 2;
  max-width: 69rem;
}

.eyebrow,
.section-index,
.portal-copy > p,
.hero-meta,
.scroll-cue {
  font-family: "SFMono-Regular", Consolas, "Liberation Mono", monospace;
  font-size: 0.68rem;
  font-weight: 400;
  letter-spacing: 0.13em;
  text-transform: uppercase;
}

.eyebrow {
  display: flex;
  gap: 1.25rem;
  align-items: center;
  margin: 0 0 2rem;
  color: var(--muted);
}

.eyebrow span {
  color: var(--mars-warm);
}

.hero h1 {
  max-width: 12ch;
  margin: 0;
  font-size: clamp(3.5rem, 9.2vw, 9.6rem);
  font-weight: 500;
  letter-spacing: -0.075em;
  line-height: 0.88;
}

.hero h1 em {
  display: block;
  color: var(--ink);
  font-style: normal;
}

.hero h1 em::after {
  display: inline-block;
  width: 0.12em;
  height: 0.12em;
  margin-left: 0.06em;
  border-radius: 50%;
  background: var(--mars);
  box-shadow: 0 0 0.5em rgba(232, 92, 54, 0.38);
  content: "";
}

.hero-intro {
  max-width: 33rem;
  margin: 2.25rem 0 0;
  color: #b4b3af;
  font-size: clamp(1rem, 1.5vw, 1.2rem);
  line-height: 1.8;
}

.hero-actions {
  display: flex;
  gap: 1.75rem;
  align-items: center;
  margin-top: 2.4rem;
}

.button {
  display: inline-flex;
  gap: 1rem;
  align-items: center;
  justify-content: center;
  min-height: 3.2rem;
  padding: 0.75rem 1.25rem;
  border: 1px solid var(--line-strong);
  border-radius: 999px;
  font-size: 0.82rem;
  transition: transform 180ms ease, background-color 180ms ease, border-color 180ms ease;
}

.button svg {
  width: 1.15rem;
  fill: none;
  stroke: currentColor;
  stroke-linecap: round;
  stroke-linejoin: round;
  stroke-width: 1.4;
}

.button-primary {
  border-color: var(--ink);
  background: var(--ink);
  color: var(--space);
}

.button-primary:hover,
.button-primary:focus-visible {
  border-color: white;
  background: white;
  transform: translateY(-2px);
}

.text-link {
  border-bottom: 1px solid var(--line-strong);
  color: #b5b5b2;
  font-size: 0.8rem;
  transition: color 180ms ease, border-color 180ms ease;
}

.text-link:hover,
.text-link:focus-visible {
  border-color: var(--mars-warm);
  color: var(--ink);
}

.orbit-visual {
  position: absolute;
  top: 44%;
  right: clamp(-10rem, 1vw, 1rem);
  z-index: 0;
  width: clamp(22rem, 43vw, 42rem);
  aspect-ratio: 1;
  transform: translate3d(var(--orbit-x, 0), var(--orbit-y, -50%), 0);
  transition: transform 400ms cubic-bezier(0.2, 0.8, 0.2, 1);
}

.planet {
  position: absolute;
  top: 50%;
  left: 50%;
  width: 41%;
  aspect-ratio: 1;
  overflow: hidden;
  border: 1px solid rgba(255, 171, 126, 0.2);
  border-radius: 50%;
  background:
    radial-gradient(circle at 62% 24%, rgba(255, 192, 148, 0.7), transparent 7%),
    radial-gradient(ellipse at 35% 62%, rgba(80, 21, 14, 0.42), transparent 18%),
    radial-gradient(ellipse at 63% 71%, rgba(76, 20, 13, 0.55), transparent 16%),
    radial-gradient(circle at 33% 28%, #f2915c, #af4128 55%, #481813 100%);
  box-shadow:
    inset -2rem -1rem 3rem rgba(31, 8, 6, 0.62),
    -1.6rem 0 4rem rgba(232, 92, 54, 0.12),
    0 0 8rem rgba(232, 92, 54, 0.12);
  transform: translate(-50%, -50%);
}

.planet::before,
.planet::after {
  position: absolute;
  border: 1px solid rgba(66, 19, 13, 0.38);
  border-radius: 50%;
  content: "";
}

.planet::before {
  top: 20%;
  left: 22%;
  width: 22%;
  height: 11%;
  transform: rotate(-18deg);
}

.planet::after {
  right: 7%;
  bottom: 24%;
  width: 34%;
  height: 14%;
  transform: rotate(10deg);
}

.planet-texture {
  position: absolute;
  inset: 0;
  background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 120 120' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='.35' numOctaves='4'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)' opacity='.34'/%3E%3C/svg%3E");
  mix-blend-mode: soft-light;
  opacity: 0.5;
}

.planet-glow {
  position: absolute;
  top: -15%;
  left: 9%;
  width: 66%;
  height: 34%;
  border-radius: 50%;
  background: rgba(255, 224, 194, 0.22);
  filter: blur(1.2rem);
  transform: rotate(-25deg);
}

.orbit {
  position: absolute;
  top: 50%;
  left: 50%;
  border: 1px solid rgba(255, 255, 255, 0.09);
  border-radius: 50%;
  transform: translate(-50%, -50%) rotate(-28deg);
}

.orbit-one {
  width: 70%;
  height: 46%;
}

.orbit-two {
  width: 100%;
  height: 66%;
}

.satellite {
  position: absolute;
  width: 0.34rem;
  height: 0.34rem;
  border-radius: 50%;
  background: var(--ink);
  box-shadow: 0 0 0.8rem rgba(255, 255, 255, 0.65);
}

.satellite-one {
  top: 27%;
  left: 22%;
}

.satellite-two {
  right: 7%;
  bottom: 34%;
  width: 0.2rem;
  height: 0.2rem;
  background: var(--mars-warm);
}

.star {
  position: absolute;
  width: 2px;
  height: 2px;
  border-radius: 50%;
  background: white;
  box-shadow: 0 0 0.5rem white;
  opacity: 0.5;
  animation: breathe 4s ease-in-out infinite alternate;
}

.star-a { top: 19%; left: 12%; }
.star-b { top: 23%; right: 34%; animation-delay: -1.3s; }
.star-c { top: 64%; left: 51%; animation-delay: -2.1s; }
.star-d { top: 77%; right: 17%; animation-delay: -0.7s; }
.star-e { top: 42%; left: 43%; animation-delay: -3.2s; }
.star-f { top: 15%; right: 9%; animation-delay: -1.8s; }

.hero-meta {
  position: absolute;
  right: var(--page-x);
  bottom: 4rem;
  display: grid;
  grid-template-columns: repeat(3, auto);
  gap: 1.25rem;
  color: var(--faint);
}

.status {
  color: #8fa065;
}

.status i,
.availability i {
  display: inline-block;
  width: 0.4rem;
  height: 0.4rem;
  margin-right: 0.4rem;
  border-radius: 50%;
  background: currentColor;
  box-shadow: 0 0 0.6rem currentColor;
}

.scroll-cue {
  position: absolute;
  bottom: 3.65rem;
  left: var(--page-x);
  display: flex;
  gap: 0.8rem;
  align-items: center;
  color: var(--faint);
}

.scroll-cue i {
  position: relative;
  display: inline-block;
  width: 3rem;
  height: 1px;
  overflow: hidden;
  background: var(--line-strong);
}

.scroll-cue i::after {
  position: absolute;
  inset: 0;
  background: var(--ink);
  content: "";
  animation: scan 2.8s ease-in-out infinite;
  transform: translateX(-110%);
}

.section {
  position: relative;
  padding: clamp(6rem, 11vw, 10rem) var(--page-x);
  border-top: 1px solid var(--line);
}

.section-heading {
  display: grid;
  grid-template-columns: minmax(9rem, 0.55fr) 1.45fr;
  gap: 2rem;
  margin-bottom: clamp(3rem, 6vw, 5.5rem);
}

.section-index {
  margin: 0;
  color: var(--mars-warm);
}

.section-heading h2,
.about h2 {
  max-width: 16ch;
  margin: 0;
  font-size: clamp(2rem, 4.5vw, 4.5rem);
  font-weight: 500;
  letter-spacing: -0.055em;
  line-height: 1.05;
}

.section-heading > div > p {
  max-width: 30rem;
  margin: 1.3rem 0 0;
  color: var(--muted);
}

.portal-grid {
  display: grid;
  grid-template-columns: 1.1fr 1fr 1fr;
  gap: 1rem;
}

.portal-card {
  position: relative;
  display: flex;
  min-height: 31rem;
  overflow: hidden;
  padding: 1.35rem;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--panel);
  flex-direction: column;
  justify-content: space-between;
  transition: border-color 250ms ease, background-color 250ms ease, transform 250ms ease;
}

.portal-card::before {
  position: absolute;
  inset: 0;
  background: linear-gradient(140deg, rgba(255, 255, 255, 0.045), transparent 33%);
  content: "";
  pointer-events: none;
}

.portal-card:hover {
  border-color: rgba(255, 255, 255, 0.2);
  background: rgba(255, 255, 255, 0.052);
  transform: translateY(-4px);
}

.portal-card-featured {
  background: rgba(232, 92, 54, 0.045);
}

.portal-topline {
  position: relative;
  z-index: 2;
  display: flex;
  align-items: center;
  justify-content: space-between;
  font-family: "SFMono-Regular", Consolas, "Liberation Mono", monospace;
  font-size: 0.62rem;
  letter-spacing: 0.08em;
}

.portal-number {
  color: var(--faint);
}

.availability {
  color: #777774;
}

.portal-card:last-child .availability {
  color: #8fa065;
}

.portal-copy {
  position: relative;
  z-index: 2;
  padding: 0.75rem;
}

.portal-copy > p {
  margin: 0 0 0.6rem;
  color: var(--mars-warm);
}

.portal-copy h3 {
  margin: 0;
  font-size: clamp(1.5rem, 2.3vw, 2.25rem);
  font-weight: 500;
  letter-spacing: -0.04em;
}

.portal-copy > span {
  display: block;
  margin-top: 0.6rem;
  color: var(--muted);
  font-size: 0.85rem;
}

.portal-orb {
  position: absolute;
  top: 41%;
  left: 50%;
  width: min(15rem, 62%);
  aspect-ratio: 1;
  border-radius: 50%;
  transform: translate(-50%, -50%);
  transition: transform 600ms cubic-bezier(0.2, 0.75, 0.2, 1);
}

.portal-card:hover .portal-orb {
  transform: translate(-50%, -53%) scale(1.035);
}

.portal-orb::after {
  position: absolute;
  inset: -32%;
  border: 1px solid var(--line);
  border-radius: 50%;
  content: "";
  transform: rotate(62deg) scaleY(0.35);
}

.portal-orb-tools {
  background:
    radial-gradient(circle at 35% 31%, rgba(255, 205, 173, 0.6), transparent 8%),
    radial-gradient(circle at 35% 35%, #ed8b5e, #9d3725 60%, #361311);
  box-shadow: inset -2rem -1rem 3rem rgba(40, 7, 4, 0.66), 0 0 4rem rgba(232, 92, 54, 0.15);
}

.portal-orb-works {
  background:
    linear-gradient(155deg, transparent 30%, rgba(216, 239, 114, 0.16) 31%, transparent 33%),
    radial-gradient(circle at 38% 35%, #7e806e, #31342f 62%, #111312);
  box-shadow: inset -2rem -1rem 3rem rgba(0, 0, 0, 0.75), 0 0 4rem rgba(217, 239, 114, 0.07);
}

.portal-orb-lab {
  border: 1px solid rgba(169, 153, 226, 0.2);
  background:
    radial-gradient(circle at 62% 24%, rgba(217, 198, 255, 0.7), transparent 3%),
    radial-gradient(circle at 40% 38%, #766e96, #302d3f 58%, #111117);
  box-shadow: inset -2rem -1rem 3rem rgba(0, 0, 0, 0.72), 0 0 4rem rgba(166, 140, 255, 0.1);
}

.about {
  display: grid;
  grid-template-columns: minmax(2rem, 0.16fr) minmax(18rem, 1fr) minmax(18rem, 0.82fr);
  gap: clamp(2rem, 5vw, 6rem);
  background:
    radial-gradient(circle at 95% 50%, rgba(232, 92, 54, 0.07), transparent 32rem),
    var(--space-soft);
}

.about-rail {
  display: flex;
  align-items: center;
  justify-content: center;
  border-right: 1px solid var(--line);
}

.about-rail span {
  color: var(--faint);
  font-family: "SFMono-Regular", Consolas, "Liberation Mono", monospace;
  font-size: 0.58rem;
  letter-spacing: 0.16em;
  white-space: nowrap;
  transform: rotate(-90deg);
}

.about-content .section-index {
  margin-bottom: 2.3rem;
}

.about-copy {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 2rem;
  margin-top: 3.2rem;
  color: var(--muted);
  font-size: 0.93rem;
}

.about-copy p {
  margin: 0;
}

.principles {
  display: flex;
  border-top: 1px solid var(--line);
  flex-direction: column;
  justify-content: flex-end;
}

.principle {
  display: grid;
  grid-template-columns: 2.5rem 1fr;
  padding: 1.7rem 0;
  border-bottom: 1px solid var(--line);
}

.principle span {
  grid-row: 1 / span 2;
  color: var(--mars-warm);
  font-family: "SFMono-Regular", Consolas, "Liberation Mono", monospace;
  font-size: 0.63rem;
}

.principle strong {
  font-size: 1rem;
  font-weight: 500;
}

.principle p {
  margin: 0.25rem 0 0;
  color: var(--muted);
  font-size: 0.82rem;
}

.site-footer {
  display: grid;
  grid-template-columns: 1fr auto 1fr;
  gap: 1rem;
  align-items: center;
  min-height: 7rem;
  padding: 1.5rem var(--page-x);
  border-top: 1px solid var(--line);
  color: var(--faint);
  font-family: "SFMono-Regular", Consolas, "Liberation Mono", monospace;
  font-size: 0.62rem;
  letter-spacing: 0.07em;
}

.brand-footer {
  color: var(--ink);
  font-family: Inter, ui-sans-serif, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  font-size: 0.84rem;
  letter-spacing: -0.02em;
}

.site-footer p {
  margin: 0;
}

.site-footer p:last-child {
  justify-self: end;
}

[data-reveal] {
  opacity: 0;
  transform: translateY(1.25rem);
  transition: opacity 700ms ease, transform 700ms cubic-bezier(0.2, 0.8, 0.2, 1);
}

[data-reveal].is-visible {
  opacity: 1;
  transform: translateY(0);
}

.portal-card:nth-child(2) { transition-delay: 80ms; }
.portal-card:nth-child(3) { transition-delay: 160ms; }

@keyframes breathe {
  from { opacity: 0.18; transform: scale(0.7); }
  to { opacity: 0.65; transform: scale(1.2); }
}

@keyframes scan {
  0%, 25% { transform: translateX(-110%); }
  75%, 100% { transform: translateX(110%); }
}

@media (max-width: 980px) {
  .hero h1 {
    max-width: 9ch;
  }

  .orbit-visual {
    top: 35%;
    right: -9rem;
    opacity: 0.72;
  }

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

  .portal-card:first-child {
    grid-column: 1 / -1;
  }

  .portal-card {
    min-height: 28rem;
  }

  .about {
    grid-template-columns: minmax(2rem, 0.1fr) 1fr;
  }

  .principles {
    grid-column: 2;
    margin-top: 1rem;
  }
}

@media (max-width: 700px) {
  :root {
    --header-h: 4.6rem;
  }

  .site-header {
    border-bottom-color: var(--line);
    background: rgba(8, 9, 12, 0.76);
    -webkit-backdrop-filter: blur(18px);
    backdrop-filter: blur(18px);
  }

  .menu-toggle {
    position: relative;
    z-index: 3;
    display: grid;
    width: 2.5rem;
    height: 2.5rem;
    padding: 0;
    border: 0;
    background: transparent;
    place-content: center;
  }

  .menu-toggle span {
    display: block;
    width: 1.2rem;
    height: 1px;
    margin: 0.2rem;
    background: var(--ink);
    transition: transform 180ms ease;
  }

  .menu-toggle[aria-expanded="true"] span:first-child {
    transform: translateY(0.3rem) rotate(45deg);
  }

  .menu-toggle[aria-expanded="true"] span:last-child {
    transform: translateY(-0.3rem) rotate(-45deg);
  }

  .site-nav {
    position: fixed;
    top: var(--header-h);
    right: 0;
    left: 0;
    display: flex;
    padding: 2rem var(--page-x) 2.5rem;
    border-bottom: 1px solid var(--line);
    background: rgba(8, 9, 12, 0.97);
    flex-direction: column;
    align-items: flex-start;
    opacity: 0;
    pointer-events: none;
    transform: translateY(-1rem);
    visibility: hidden;
    transition:
      opacity 180ms ease,
      transform 250ms cubic-bezier(0.2, 0.8, 0.2, 1),
      visibility 250ms;
  }

  .site-nav.is-open {
    opacity: 1;
    pointer-events: auto;
    transform: translateY(0);
    visibility: visible;
  }

  .site-nav a {
    font-size: 1rem;
  }

  .hero {
    min-height: 50rem;
    padding-top: calc(var(--header-h) + 4rem);
    align-items: start;
  }

  .eyebrow {
    margin-top: 4rem;
  }

  .hero h1 {
    font-size: clamp(3.05rem, 13.5vw, 5.8rem);
  }

  .hero-intro {
    font-size: 0.95rem;
  }

  .orbit-visual {
    top: auto;
    right: -7rem;
    bottom: 2rem;
    width: 25rem;
    opacity: 0.62;
  }

  .hero-meta {
    display: none;
  }

  .scroll-cue {
    bottom: 2rem;
  }

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

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

  .portal-card:first-child {
    grid-column: auto;
  }

  .portal-card {
    min-height: 25rem;
  }

  .about {
    display: block;
  }

  .about-rail {
    display: none;
  }

  .about-copy {
    grid-template-columns: 1fr;
    gap: 1rem;
  }

  .principles {
    margin-top: 4rem;
  }

  .site-footer {
    grid-template-columns: 1fr auto;
  }

  .site-footer > p:nth-child(2) {
    display: none;
  }
}

@media (max-width: 420px) {
  .hero-actions {
    gap: 1rem;
    align-items: flex-start;
    flex-direction: column;
  }

  .scroll-cue span {
    display: none;
  }
}

@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }

  *,
  *::before,
  *::after {
    scroll-behavior: auto !important;
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }

  [data-reveal] {
    opacity: 1;
    transform: none;
  }
}