@font-face {
  font-family: "Atkinson Hyperlegible";
  src: url("AtkinsonHyperlegible-Regular.ttf") format("truetype");
  font-style: normal;
  font-weight: 400;
  font-display: swap;
}

@font-face {
  font-family: "Atkinson Hyperlegible";
  src: url("AtkinsonHyperlegible-Bold.ttf") format("truetype");
  font-style: normal;
  font-weight: 700;
  font-display: swap;
}

@font-face {
  font-family: "Oxanium";
  src: url("Oxanium-Variable.ttf") format("truetype");
  font-style: normal;
  font-weight: 300 800;
  font-display: swap;
}

:root {
  color-scheme: dark;
  --ink: #020611;
  --ink-soft: #07101d;
  --panel: rgba(8, 18, 33, 0.86);
  --panel-solid: #0a1424;
  --line: rgba(104, 226, 255, 0.26);
  --line-strong: rgba(104, 226, 255, 0.62);
  --cyan: #62e6ff;
  --cyan-soft: #b6f4ff;
  --violet: #b66dff;
  --orange: #ffad55;
  --green: #75f2b6;
  --white: #f7f8ff;
  --muted: #aab7cf;
  --muted-strong: #ced6e6;
  --radius: 18px;
  --display: "Oxanium", "Arial Narrow", sans-serif;
  --body: "Atkinson Hyperlegible", system-ui, sans-serif;
  --shadow: 0 24px 80px rgba(0, 0, 0, 0.42);
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  min-width: 280px;
  margin: 0;
  overflow-x: hidden;
  background:
    radial-gradient(circle at 18% 8%, rgba(45, 159, 208, 0.12), transparent 29rem),
    radial-gradient(circle at 88% 28%, rgba(141, 61, 218, 0.11), transparent 34rem),
    linear-gradient(180deg, #030814 0%, var(--ink) 48%, #040811 100%);
  color: var(--white);
  font-family: var(--body);
  font-size: 18px;
  line-height: 1.55;
  text-rendering: optimizeLegibility;
}

body::before {
  position: fixed;
  inset: 0;
  z-index: -1;
  background-image:
    radial-gradient(circle, rgba(186, 242, 255, 0.62) 0 1px, transparent 1.4px),
    radial-gradient(circle, rgba(180, 113, 255, 0.35) 0 1px, transparent 1.5px);
  background-position: 0 0, 47px 63px;
  background-size: 113px 127px, 191px 173px;
  content: "";
  opacity: 0.24;
  pointer-events: none;
}

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

a {
  color: var(--cyan);
  text-underline-offset: 0.2em;
}

a:hover {
  color: var(--cyan-soft);
}

a:focus-visible,
button:focus-visible {
  outline: 3px solid var(--orange);
  outline-offset: 4px;
}

p,
ul,
ol,
dl {
  margin-top: 0;
}

h1,
h2,
h3 {
  margin-top: 0;
  font-family: var(--display);
  line-height: 1.08;
  letter-spacing: -0.025em;
}

h1 {
  margin-bottom: 1rem;
  font-size: clamp(3.1rem, 10vw, 7.8rem);
  font-weight: 700;
  letter-spacing: -0.055em;
}

h2 {
  margin-bottom: 0.8rem;
  font-size: clamp(2rem, 5vw, 4rem);
}

h3 {
  margin-bottom: 0.6rem;
  font-size: 1.3rem;
}

.skip-link {
  position: fixed;
  top: 0.75rem;
  left: 0.75rem;
  z-index: 100;
  padding: 0.65rem 0.85rem;
  transform: translateY(-160%);
  border-radius: 8px;
  background: var(--white);
  color: var(--ink);
  font-weight: 700;
}

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

.shell {
  width: min(1180px, calc(100% - 2rem));
  margin-inline: auto;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 20;
  border-bottom: 1px solid rgba(104, 226, 255, 0.13);
  background: rgba(2, 6, 17, 0.82);
  backdrop-filter: blur(18px);
}

.nav-shell {
  display: flex;
  min-height: 74px;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 0.65rem;
  color: var(--white);
  font-family: var(--display);
  font-size: 1.12rem;
  font-weight: 700;
  letter-spacing: 0.11em;
  text-decoration: none;
}

.brand:hover {
  color: var(--white);
}

.brand-glyph {
  position: relative;
  width: 22px;
  height: 22px;
  flex: 0 0 22px;
  border: 2px solid var(--cyan);
  border-radius: 50%;
  box-shadow: 0 0 18px rgba(98, 230, 255, 0.45);
}

.brand-glyph::before,
.brand-glyph::after {
  position: absolute;
  border: 1px solid var(--violet);
  border-radius: 50%;
  content: "";
}

.brand-glyph::before {
  inset: 3px -6px -2px 5px;
}

.brand-glyph::after {
  inset: 7px -10px -6px 9px;
  opacity: 0.7;
}

.site-nav {
  display: flex;
  align-items: center;
  justify-content: flex-end;
  gap: clamp(0.8rem, 2vw, 1.6rem);
  font-family: var(--display);
  font-size: 0.78rem;
  font-weight: 650;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.site-nav a {
  color: var(--muted-strong);
  text-decoration: none;
}

.site-nav a:hover,
.site-nav a[aria-current="page"] {
  color: var(--cyan);
}

.hero {
  display: grid;
  min-height: min(860px, calc(100vh - 74px));
  grid-template-columns: minmax(0, 1.08fr) minmax(330px, 0.92fr);
  align-items: center;
  gap: clamp(2.5rem, 7vw, 7rem);
  padding-block: clamp(4rem, 9vw, 8rem);
}

.eyebrow {
  display: flex;
  align-items: center;
  gap: 0.65rem;
  margin-bottom: 1.15rem;
  color: var(--cyan);
  font-family: var(--display);
  font-size: 0.76rem;
  font-weight: 700;
  letter-spacing: 0.16em;
  text-transform: uppercase;
}

.eyebrow::before {
  width: 34px;
  height: 2px;
  background: linear-gradient(90deg, var(--cyan), var(--violet));
  box-shadow: 0 0 12px var(--cyan);
  content: "";
}

.centered-eyebrow {
  justify-content: center;
}

.hero-title {
  background: linear-gradient(104deg, #fff 5%, #b9f5ff 48%, #b283ff 93%);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
  text-shadow: 0 0 44px rgba(79, 202, 255, 0.12);
}

.hero-lede {
  max-width: 37rem;
  margin-bottom: 1.7rem;
  color: var(--muted-strong);
  font-size: clamp(1.15rem, 2vw, 1.42rem);
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.8rem;
  margin-bottom: 1.25rem;
}

.button {
  display: inline-flex;
  min-height: 50px;
  align-items: center;
  justify-content: center;
  padding: 0.8rem 1.2rem;
  border: 1px solid var(--cyan);
  border-radius: 10px;
  background: linear-gradient(135deg, rgba(40, 177, 216, 0.23), rgba(115, 72, 205, 0.22));
  box-shadow: inset 0 0 24px rgba(98, 230, 255, 0.08), 0 10px 34px rgba(0, 0, 0, 0.28);
  color: var(--white);
  font-family: var(--display);
  font-size: 0.78rem;
  font-weight: 750;
  letter-spacing: 0.08em;
  text-decoration: none;
  text-transform: uppercase;
}

.button:hover {
  background: linear-gradient(135deg, rgba(40, 177, 216, 0.35), rgba(115, 72, 205, 0.34));
  color: var(--white);
}

.button.secondary {
  border-color: rgba(178, 196, 225, 0.35);
  background: rgba(9, 18, 32, 0.76);
  color: var(--muted-strong);
}

.trust-line {
  display: flex;
  flex-wrap: wrap;
  gap: 0.35rem 0.8rem;
  color: var(--muted);
  font-size: 0.9rem;
}

.trust-line span:not(:last-child)::after {
  margin-left: 0.8rem;
  color: var(--line-strong);
  content: "//";
}

.hero-art {
  position: relative;
  width: min(100%, 510px);
  margin-inline: auto;
  isolation: isolate;
}

.hero-art::before,
.hero-art::after {
  position: absolute;
  z-index: -1;
  border: 1px solid rgba(98, 230, 255, 0.22);
  border-radius: 50%;
  content: "";
}

.hero-art::before {
  inset: -7% -8% 14% 10%;
  box-shadow: 0 0 80px rgba(98, 230, 255, 0.12);
}

.hero-art::after {
  inset: 8% -13% -2% 19%;
  border-color: rgba(182, 109, 255, 0.2);
}

.app-icon {
  width: 82%;
  margin-left: auto;
  border: 1px solid rgba(170, 230, 255, 0.34);
  border-radius: 24%;
  box-shadow: var(--shadow), 0 0 70px rgba(98, 230, 255, 0.18);
}

.flight-card {
  position: absolute;
  bottom: -8%;
  left: 0;
  width: 39%;
  overflow: hidden;
  border: 1px solid rgba(255, 173, 85, 0.62);
  border-radius: 18px;
  background: var(--panel-solid);
  box-shadow: 0 18px 54px rgba(0, 0, 0, 0.62);
  transform: rotate(-3deg);
}

.flight-card img {
  width: 100%;
  aspect-ratio: 440 / 956;
  object-fit: cover;
}

.flight-card-label {
  display: block;
  padding: 0.55rem 0.7rem;
  color: var(--orange);
  font-family: var(--display);
  font-size: clamp(0.52rem, 1vw, 0.66rem);
  font-weight: 700;
  letter-spacing: 0.1em;
  text-transform: uppercase;
}

.section {
  padding-block: clamp(4.5rem, 9vw, 8rem);
}

.section + .section {
  border-top: 1px solid rgba(104, 226, 255, 0.1);
}

.section-heading {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(260px, 0.55fr);
  align-items: end;
  gap: 2rem;
  margin-bottom: 2.5rem;
}

.section-heading p {
  margin-bottom: 0;
  color: var(--muted);
}

.feature-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 1rem;
}

.feature-card,
.info-card,
.prose-card {
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background:
    linear-gradient(140deg, rgba(16, 37, 60, 0.78), rgba(8, 14, 28, 0.88)),
    var(--panel-solid);
  box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.035);
}

.feature-card {
  min-height: 260px;
  padding: 1.5rem;
}

.feature-card:nth-child(2) {
  border-color: rgba(182, 109, 255, 0.38);
}

.feature-card:nth-child(3) {
  border-color: rgba(255, 173, 85, 0.38);
}

.feature-number {
  display: inline-flex;
  width: 42px;
  height: 42px;
  align-items: center;
  justify-content: center;
  margin-bottom: 2.3rem;
  border: 1px solid var(--line-strong);
  border-radius: 50%;
  color: var(--cyan);
  font-family: var(--display);
  font-size: 0.72rem;
  font-weight: 700;
}

.feature-card p {
  margin-bottom: 0;
  color: var(--muted);
}

.chapter {
  position: relative;
  overflow: hidden;
  padding: clamp(2rem, 5vw, 4.3rem);
  border: 1px solid rgba(255, 114, 88, 0.44);
  border-radius: 24px;
  background:
    radial-gradient(circle at 82% 34%, rgba(224, 75, 75, 0.19), transparent 28rem),
    linear-gradient(130deg, rgba(42, 16, 24, 0.9), rgba(8, 14, 28, 0.9));
  box-shadow: var(--shadow);
}

.chapter::after {
  position: absolute;
  top: 0;
  right: -10%;
  width: 48%;
  height: 100%;
  border-left: 1px solid rgba(255, 173, 85, 0.16);
  background: repeating-linear-gradient(135deg, transparent 0 28px, rgba(255, 173, 85, 0.035) 28px 30px);
  content: "";
  transform: skewX(-16deg);
  pointer-events: none;
}

.chapter-copy {
  position: relative;
  z-index: 1;
  max-width: 47rem;
}

.chapter h2 {
  color: #ffd4c8;
}

.chapter p {
  color: var(--muted-strong);
}

.stat-row {
  display: flex;
  flex-wrap: wrap;
  gap: 0.7rem;
  margin-top: 1.5rem;
}

.stat-chip,
.status-chip {
  display: inline-flex;
  align-items: center;
  gap: 0.45rem;
  border: 1px solid rgba(255, 173, 85, 0.32);
  border-radius: 999px;
  background: rgba(16, 12, 19, 0.72);
  color: #ffd6a9;
  font-family: var(--display);
  font-size: 0.68rem;
  font-weight: 700;
  letter-spacing: 0.06em;
  padding: 0.45rem 0.72rem;
  text-transform: uppercase;
}

.status-chip {
  border-color: rgba(117, 242, 182, 0.35);
  color: var(--green);
}

.status-chip::before {
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: currentColor;
  box-shadow: 0 0 12px currentColor;
  content: "";
}

.gallery {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: clamp(0.8rem, 2vw, 1.3rem);
}

.artifact {
  overflow: hidden;
  border: 1px solid var(--line);
  border-radius: 18px;
  background: var(--panel-solid);
  box-shadow: 0 16px 44px rgba(0, 0, 0, 0.32);
}

.artifact:nth-child(2) {
  transform: translateY(2rem);
}

.artifact:nth-child(3) {
  transform: translateY(-0.8rem);
}

.artifact:nth-child(4) {
  transform: translateY(1.1rem);
}

.artifact img {
  width: 100%;
  aspect-ratio: 0.48;
  object-fit: cover;
  object-position: top center;
}

.artifact figcaption {
  min-height: 90px;
  padding: 0.85rem 1rem 1rem;
  border-top: 1px solid var(--line);
}

.artifact strong {
  display: block;
  color: var(--white);
  font-family: var(--display);
  font-size: 0.86rem;
}

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

.promise-grid {
  display: grid;
  grid-template-columns: 0.8fr 1.2fr;
  gap: clamp(1rem, 4vw, 3rem);
}

.promise-lede {
  display: flex;
  min-height: 100%;
  flex-direction: column;
  justify-content: space-between;
  padding: 2rem;
  border: 1px solid rgba(182, 109, 255, 0.33);
  border-radius: var(--radius);
  background: linear-gradient(145deg, rgba(63, 32, 91, 0.34), rgba(8, 14, 28, 0.9));
}

.promise-lede p {
  color: var(--muted);
}

.promise-list {
  display: grid;
  gap: 0.8rem;
}

.promise-item {
  display: grid;
  grid-template-columns: auto 1fr;
  gap: 1rem;
  padding: 1rem 1.1rem;
  border: 1px solid var(--line);
  border-radius: 14px;
  background: rgba(7, 15, 28, 0.78);
}

.promise-mark {
  color: var(--green);
  font-family: var(--display);
  font-weight: 700;
}

.promise-item h3 {
  margin-bottom: 0.25rem;
  font-size: 1rem;
}

.promise-item p {
  margin-bottom: 0;
  color: var(--muted);
  font-size: 0.93rem;
}

.final-cta {
  padding: clamp(2.3rem, 6vw, 5rem);
  border: 1px solid var(--line-strong);
  border-radius: 24px;
  background:
    radial-gradient(circle at 15% 10%, rgba(98, 230, 255, 0.17), transparent 20rem),
    radial-gradient(circle at 90% 100%, rgba(182, 109, 255, 0.19), transparent 24rem),
    rgba(6, 14, 28, 0.92);
  text-align: center;
  box-shadow: var(--shadow);
}

.final-cta p {
  max-width: 42rem;
  margin-right: auto;
  margin-bottom: 1.5rem;
  margin-left: auto;
  color: var(--muted-strong);
}

.page-hero {
  padding-block: clamp(4rem, 9vw, 7rem) clamp(3rem, 6vw, 5rem);
  border-bottom: 1px solid rgba(104, 226, 255, 0.12);
}

.page-hero h1 {
  max-width: 980px;
  font-size: clamp(2.8rem, 8vw, 6rem);
}

.page-hero p:not(.eyebrow) {
  max-width: 720px;
  margin-bottom: 0;
  color: var(--muted-strong);
  font-size: 1.2rem;
}

.content-grid {
  display: grid;
  grid-template-columns: minmax(0, 0.66fr) minmax(0, 1.34fr);
  align-items: start;
  gap: clamp(1rem, 5vw, 4rem);
}

.page-index {
  position: sticky;
  top: 104px;
  padding: 1.2rem;
  border: 1px solid var(--line);
  border-radius: 14px;
  background: rgba(7, 15, 28, 0.78);
}

.page-index strong {
  display: block;
  margin-bottom: 0.65rem;
  color: var(--cyan);
  font-family: var(--display);
  font-size: 0.72rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
}

.page-index a {
  display: block;
  padding: 0.28rem 0;
  color: var(--muted-strong);
  text-decoration: none;
}

.page-index a:hover {
  color: var(--cyan);
}

.prose {
  max-width: 780px;
}

.prose section {
  scroll-margin-top: 110px;
}

.prose section + section {
  margin-top: 3.4rem;
  padding-top: 3.4rem;
  border-top: 1px solid rgba(104, 226, 255, 0.13);
}

.prose h2 {
  font-size: clamp(1.6rem, 4vw, 2.55rem);
}

.prose h3 {
  margin-top: 1.8rem;
}

.prose p,
.prose li,
.prose dd {
  color: var(--muted-strong);
}

.prose li + li {
  margin-top: 0.45rem;
}

.prose-card {
  padding: 1.2rem 1.3rem;
}

.prose-card + .prose-card {
  margin-top: 0.9rem;
}

.prose-card p:last-child {
  margin-bottom: 0;
}

.notice {
  margin: 1.5rem 0;
  padding: 1rem 1.2rem;
  border: 1px solid rgba(255, 173, 85, 0.42);
  border-left-width: 4px;
  border-radius: 12px;
  background: rgba(74, 42, 15, 0.25);
  color: #ffe0b9;
}

.notice strong {
  color: var(--orange);
}

.data-list {
  display: grid;
  grid-template-columns: minmax(130px, 0.35fr) 1fr;
  gap: 0.7rem 1.2rem;
}

.data-list dt {
  color: var(--cyan);
  font-family: var(--display);
  font-size: 0.86rem;
  font-weight: 700;
}

.data-list dd {
  margin: 0;
}

.license-source {
  overflow-wrap: anywhere;
}

.site-footer {
  margin-top: clamp(4rem, 8vw, 7rem);
  border-top: 1px solid rgba(104, 226, 255, 0.15);
  background: rgba(2, 6, 17, 0.72);
}

.footer-grid {
  display: grid;
  grid-template-columns: 1fr auto;
  align-items: end;
  gap: 2rem;
  padding-block: 2.4rem;
}

.footer-note {
  max-width: 620px;
  margin: 0.8rem 0 0;
  color: var(--muted);
  font-size: 0.9rem;
}

.footer-links {
  display: flex;
  flex-wrap: wrap;
  justify-content: flex-end;
  gap: 0.9rem 1.2rem;
  font-family: var(--display);
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.07em;
  text-transform: uppercase;
}

.footer-links a {
  color: var(--muted-strong);
  text-decoration: none;
}

.footer-links a:hover {
  color: var(--cyan);
}

.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

@media (max-width: 920px) {
  .hero {
    min-height: auto;
    grid-template-columns: 1fr;
  }

  .hero-copy {
    max-width: 720px;
  }

  .hero-art {
    width: min(78vw, 510px);
    margin-top: 2rem;
  }

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

  .page-index {
    position: static;
  }

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

  .feature-card {
    min-height: 0;
  }

  .feature-number {
    margin-bottom: 1.3rem;
  }

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

  .artifact:nth-child(n) {
    transform: none;
  }
}

@media (max-width: 680px) {
  body {
    font-size: 17px;
  }

  .nav-shell {
    min-height: 64px;
  }

  .site-nav a:nth-child(-n + 2) {
    display: none;
  }

  .hero {
    padding-top: 3.4rem;
  }

  .hero-title {
    font-size: clamp(2.75rem, 17vw, 5.2rem);
  }

  .hero-art {
    width: min(88vw, 460px);
  }

  .app-icon {
    width: 88%;
  }

  .flight-card {
    bottom: -9%;
    width: 38%;
  }

  .promise-grid,
  .footer-grid {
    grid-template-columns: 1fr;
  }

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

  .data-list {
    grid-template-columns: 1fr;
    gap: 0.15rem;
  }

  .data-list dd + dt {
    margin-top: 0.9rem;
  }
}

@media (max-width: 440px) {
  .shell {
    width: min(100% - 1.2rem, 1180px);
  }

  .brand {
    font-size: 0.94rem;
  }

  .site-nav {
    gap: 0.75rem;
    font-size: 0.68rem;
  }

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

  .artifact img {
    aspect-ratio: 0.62;
  }

  .artifact figcaption {
    min-height: auto;
  }

  .trust-line {
    display: grid;
  }

  .trust-line span::after {
    display: none;
  }
}

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

@media (prefers-contrast: more) {
  :root {
    --line: rgba(164, 240, 255, 0.62);
    --muted: #d3dbea;
    --muted-strong: #eef3ff;
  }
}