@font-face {
  font-family: "Jersey 10";
  src: url("assets/fonts/Jersey10-Regular.ttf") format("truetype");
  font-display: swap;
  font-style: normal;
  font-weight: 400;
}

:root {
  color-scheme: dark;
  --void: #050504;
  --ash: #4a4a46;
  --dust: #7b7b75;
  --ivory: #e6e2d6;
  --muted: #aaa69d;
  --signal: #ffb000;
  --line: rgba(230, 226, 214, 0.18);
  --page: min(92vw, 1460px);
}

* {
  box-sizing: border-box;
}

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

body {
  margin: 0;
  background: var(--void);
  color: var(--ivory);
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  font-size: 1rem;
  line-height: 1.55;
  text-rendering: optimizeLegibility;
}

::selection {
  color: var(--void);
  background: var(--signal);
}

:focus-visible {
  outline: 2px solid var(--signal);
  outline-offset: 5px;
}

a {
  color: inherit;
  text-decoration-color: var(--ash);
  text-underline-offset: 0.32em;
  transition: color 160ms ease-out, text-decoration-color 160ms ease-out;
}

a:hover {
  color: var(--signal);
  text-decoration-color: var(--signal);
}

.skip-link:hover {
  color: var(--void);
  text-decoration-color: var(--void);
}

.skip-link {
  position: fixed;
  z-index: 20;
  top: 1rem;
  left: 1rem;
  padding: 0.75rem 1rem;
  color: var(--void);
  background: var(--signal);
  transform: translateY(-150%);
}

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

.site-header {
  position: relative;
  z-index: 3;
  display: flex;
  width: var(--page);
  min-height: 5.5rem;
  margin: 0 auto;
  align-items: center;
  justify-content: space-between;
  border-bottom: 1px solid var(--line);
}

.header-actions {
  display: flex;
  align-items: center;
  gap: clamp(1rem, 2.5vw, 2.5rem);
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 0.8rem;
  font-family: "Jersey 10", monospace;
  font-size: 1.5rem;
  letter-spacing: 0.02em;
  text-decoration: none;
}

.brand img {
  width: 2.5rem;
  height: 2.5rem;
  object-fit: contain;
}

nav {
  display: flex;
  gap: clamp(1.1rem, 3vw, 3.2rem);
  font-family: ui-monospace, SFMono-Regular, Menlo, monospace;
  font-size: 0.78rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

nav a {
  text-decoration: none;
}

.language-toggle {
  display: inline-flex;
  padding: 0.2rem;
  border: 1px solid var(--line);
}

.language-toggle button {
  min-width: 2.6rem;
  min-height: 2.25rem;
  padding: 0.35rem 0.55rem;
  border: 0;
  color: var(--dust);
  background: transparent;
  cursor: pointer;
  font: 700 0.72rem/1 ui-monospace, SFMono-Regular, Menlo, monospace;
  letter-spacing: 0.08em;
}

.language-toggle button:hover {
  color: var(--ivory);
}

.language-toggle button[aria-pressed="true"] {
  color: var(--void);
  background: var(--signal);
}

.hero {
  position: relative;
  display: grid;
  grid-template-columns: minmax(0, 0.9fr) minmax(34rem, 1.1fr);
  width: var(--page);
  min-height: calc(100svh - 5.5rem);
  margin: 0 auto;
  align-items: center;
  gap: clamp(3rem, 7vw, 9rem);
  overflow: clip;
  border-bottom: 1px solid var(--line);
}

#signal-field {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  opacity: 0.7;
  pointer-events: none;
}

.hero-copy,
.flight-signal {
  position: relative;
  z-index: 1;
}

h1,
h2,
h3,
p {
  margin-top: 0;
}

h1,
h2 {
  font-family: "Jersey 10", monospace;
  font-weight: 400;
  line-height: 0.9;
}

h1 {
  max-width: 11ch;
  margin-bottom: 2rem;
  font-size: clamp(4.7rem, 8.4vw, 8.3rem);
  letter-spacing: -0.025em;
}

.hero-copy > p {
  max-width: 38rem;
  margin-bottom: 2.2rem;
  color: var(--muted);
  font-size: clamp(1.05rem, 1.4vw, 1.25rem);
}

.hero-actions,
.closing-meta {
  display: flex;
  align-items: center;
  gap: 2rem;
  flex-wrap: wrap;
}

.primary-action {
  display: inline-flex;
  min-height: 3.25rem;
  align-items: center;
  gap: 0.75rem;
  padding: 0.75rem 1.15rem;
  border: 1px solid rgba(255, 176, 0, 0.46);
  color: var(--signal);
  font-family: ui-monospace, SFMono-Regular, Menlo, monospace;
  font-weight: 700;
  letter-spacing: 0.04em;
}

.primary-action > span {
  font-size: 1.45em;
  line-height: 1;
}

.hero-actions > a,
.closing-meta > a {
  font-family: ui-monospace, SFMono-Regular, Menlo, monospace;
  font-size: 0.82rem;
  letter-spacing: 0.04em;
}

.flight-signal {
  min-height: 34rem;
  align-self: stretch;
  display: flex;
  flex-direction: column;
  justify-content: center;
}

.signal-head {
  display: flex;
  justify-content: space-between;
  padding-bottom: 1rem;
  border-bottom: 1px solid var(--line);
  color: var(--muted);
  font-family: ui-monospace, SFMono-Regular, Menlo, monospace;
  font-size: 0.74rem;
  letter-spacing: 0.12em;
}

.status {
  color: var(--ivory);
}

.status i {
  display: inline-block;
  width: 0.5rem;
  height: 0.5rem;
  margin-right: 0.5rem;
  background: var(--signal);
}

.route-plot {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 9 / 4;
  margin: clamp(1.5rem, 3vw, 2.5rem) 0;
  overflow: hidden;
}

.route {
  fill: none;
  stroke-linecap: square;
  stroke-linejoin: round;
  vector-effect: non-scaling-stroke;
}

.plot-grid {
  fill: none;
  stroke: var(--line);
  stroke-width: 1;
  vector-effect: non-scaling-stroke;
}

.plot-labels,
.peak-label {
  fill: var(--dust);
  font-family: ui-monospace, SFMono-Regular, Menlo, monospace;
  font-size: 16px;
  letter-spacing: 0.1em;
  font-variant-numeric: tabular-nums;
}

.route-shadow {
  stroke: var(--ivory);
  stroke-width: 7;
  opacity: 0.09;
}

.route-front {
  stroke: var(--signal);
  stroke-width: 2.5;
}

.plot-cursor {
  fill: none;
  stroke: var(--ivory);
  stroke-width: 1;
  stroke-dasharray: 5 7;
  opacity: 0.42;
  vector-effect: non-scaling-stroke;
}

.route-origin {
  fill: var(--void);
  stroke: var(--ivory);
  stroke-width: 2;
  vector-effect: non-scaling-stroke;
}

.beacon {
  fill: var(--signal);
}

.peak-label {
  fill: var(--ivory);
  letter-spacing: 0.06em;
}

.telemetry {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  margin: 0;
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
  font-family: ui-monospace, SFMono-Regular, Menlo, monospace;
  font-variant-numeric: tabular-nums;
}

.telemetry div {
  padding: 1rem 0;
}

.telemetry dt {
  color: var(--dust);
  font-size: 0.7rem;
  letter-spacing: 0.12em;
}

.telemetry dd {
  margin: 0.25rem 0 0;
  color: var(--ivory);
  font-size: 1rem;
}

.workflow,
.privacy,
.closing {
  position: relative;
  width: var(--page);
  margin: 0 auto;
}

.workflow::after,
.privacy::after,
.closing::after {
  position: absolute;
  right: 0;
  bottom: 0;
  left: 0;
  height: 1px;
  background: var(--line);
  content: "";
}

.workflow {
  position: relative;
  padding: clamp(6rem, 12vw, 11rem) 0;
}

.section-heading {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(18rem, 0.7fr);
  gap: 5vw;
  align-items: end;
}

h2 {
  margin-bottom: 1.4rem;
  font-size: clamp(3.8rem, 7vw, 7rem);
  letter-spacing: -0.02em;
}

.section-heading p,
.privacy p,
.closing p {
  color: var(--muted);
  font-size: 1.08rem;
}

.workflow-line {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  margin-top: clamp(5rem, 10vw, 9rem);
  border-top: 1px solid var(--line);
}

.workflow-line article {
  min-height: 17rem;
  padding: 1.5rem clamp(1rem, 3vw, 3rem) 2rem 0;
  border-bottom: 1px solid var(--line);
}

.workflow-line article + article {
  padding-left: clamp(1rem, 3vw, 3rem);
  border-left: 1px solid var(--line);
}

.step-mark {
  color: var(--signal);
  font-family: "Jersey 10", monospace;
  font-size: 2.1rem;
}

h3 {
  margin: 3.5rem 0 0.8rem;
  font-size: 1.15rem;
}

.workflow-line p {
  max-width: 31ch;
  color: var(--muted);
}

.privacy {
  position: relative;
  display: grid;
  grid-template-columns: minmax(20rem, 0.8fr) minmax(0, 1fr);
  gap: 8vw;
  padding: clamp(6rem, 12vw, 11rem) 0;
  align-items: center;
}

.privacy-signal {
  display: flex;
  flex-direction: column;
  gap: 1.4rem;
  color: var(--ash);
  font-family: "Jersey 10", monospace;
  font-size: clamp(3.4rem, 7vw, 7.2rem);
  line-height: 0.72;
}

.privacy-signal span:last-child {
  color: var(--ivory);
  transform: translateX(10%);
}

.closing {
  min-height: 68svh;
  padding: clamp(7rem, 15vw, 13rem) 0;
}

.closing h2 {
  max-width: 10ch;
}

footer {
  display: flex;
  width: var(--page);
  min-height: 7rem;
  margin: 0 auto;
  align-items: center;
  justify-content: space-between;
  gap: 2rem;
  color: var(--dust);
  font-family: ui-monospace, SFMono-Regular, Menlo, monospace;
  font-size: 0.74rem;
  letter-spacing: 0.05em;
}

.document-main {
  width: var(--page);
  margin: 0 auto;
  padding: clamp(4rem, 9vw, 8rem) 0 clamp(6rem, 12vw, 10rem);
}

.document-header {
  max-width: 62rem;
  padding-bottom: clamp(3rem, 7vw, 6rem);
  border-bottom: 1px solid var(--line);
}

.document-header h1 {
  max-width: 12ch;
}

.document-header p {
  max-width: 58ch;
  color: var(--muted);
  font-size: clamp(1.05rem, 1.4vw, 1.25rem);
}

.document-updated {
  color: var(--dust) !important;
  font-family: ui-monospace, SFMono-Regular, Menlo, monospace;
  font-size: 0.78rem !important;
  letter-spacing: 0.06em;
  text-transform: uppercase;
}

.document-content {
  display: grid;
  grid-template-columns: minmax(0, 0.42fr) minmax(28rem, 0.76fr);
  gap: clamp(3rem, 9vw, 9rem);
  padding-top: clamp(4rem, 8vw, 7rem);
}

.document-index {
  position: sticky;
  top: 2rem;
  align-self: start;
  color: var(--dust);
  font-family: ui-monospace, SFMono-Regular, Menlo, monospace;
  font-size: 0.76rem;
  letter-spacing: 0.06em;
  text-transform: uppercase;
}

.document-index span {
  display: block;
  margin-bottom: 0.7rem;
}

.document-body section {
  padding: 0 0 3.2rem;
  border-bottom: 1px solid var(--line);
}

.document-body section + section {
  padding-top: 3.2rem;
}

.document-body h2 {
  margin-bottom: 1.2rem;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  font-size: clamp(1.45rem, 2vw, 2rem);
  line-height: 1.15;
  letter-spacing: -0.02em;
}

.document-body p,
.document-body li {
  max-width: 68ch;
  color: var(--muted);
}

.document-body ul {
  margin: 1rem 0 0;
  padding-left: 1.25rem;
}

.document-body li + li {
  margin-top: 0.65rem;
}

.contact-line {
  color: var(--ivory) !important;
  font-family: ui-monospace, SFMono-Regular, Menlo, monospace;
}

@media (max-width: 900px) {
  .site-header {
    min-height: 4.5rem;
  }

  nav a:not(:last-child) {
    display: none;
  }

  .header-actions {
    gap: 0.75rem;
  }

  .hero {
    grid-template-columns: 1fr;
    min-height: auto;
    padding: 5rem 0 4rem;
    gap: 4rem;
  }

  h1 {
    max-width: 11ch;
    margin-bottom: 1.5rem;
    font-size: clamp(3.8rem, 16vw, 5.8rem);
  }

  .flight-signal {
    min-height: auto;
  }

  .route-plot {
    aspect-ratio: 9 / 4.6;
    margin-block: 1.25rem;
  }

  .plot-labels,
  .peak-label {
    font-size: 24px;
  }

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

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

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

  .workflow-line article,
  .workflow-line article + article {
    min-height: auto;
    padding: 1.5rem 0 2.5rem;
    border-left: 0;
  }

  h3 {
    margin-top: 1.5rem;
  }

  .privacy-signal {
    font-size: clamp(3.2rem, 16vw, 5.4rem);
  }

  .privacy-signal span:last-child {
    transform: none;
  }

  footer {
    align-items: flex-start;
    flex-direction: column;
    justify-content: center;
  }

  .document-content {
    grid-template-columns: 1fr;
    gap: 2rem;
  }

  .document-index {
    position: static;
  }
}

@media (max-width: 520px) {
  .brand span {
    display: none;
  }

  nav {
    gap: 0.75rem;
  }
}

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

  *,
  *::before,
  *::after {
    transition-duration: 0.01ms !important;
  }
}