:root {
  --ink: #17241e;
  --paper: #f4f1e9;
  --surface: #fffdf7;
  --green: #bde74c;
  --forest: #244f3e;
  --gold: #a88647;
  --muted: #6d746c;
  --line: rgba(23, 36, 30, 0.16);
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  color: var(--ink);
  background:
    radial-gradient(circle at 72% 12%, rgba(168, 134, 71, 0.1), transparent 27%),
    radial-gradient(circle at 12% 48%, rgba(36, 79, 62, 0.06), transparent 29%),
    var(--paper);
  font-family: "Helvetica Neue Light", "Helvetica Light", "Helvetica Neue", Helvetica, Arial, sans-serif;
  font-weight: 300;
  -webkit-font-smoothing: antialiased;
}

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

.site-header {
  position: absolute;
  z-index: 10;
  top: 0;
  left: 0;
  width: calc(100% - 7vw);
  display: grid;
  grid-template-columns: 1fr auto 1fr;
  align-items: center;
  margin: 20px 3.5vw 0;
  padding: 14px 18px;
  color: var(--paper);
  border: 1px solid rgba(255, 255, 255, 0.17);
  border-radius: 15px;
  background: rgba(20, 44, 35, 0.72);
  box-shadow: 0 12px 40px rgba(7, 20, 15, 0.18), inset 0 1px rgba(255, 255, 255, 0.09);
  backdrop-filter: blur(18px) saturate(120%);
}

.brand,
.footer-brand {
  font-family: Georgia, "Times New Roman", serif;
  font-size: 1.35rem;
  font-weight: 400;
  letter-spacing: -0.045em;
}

.brand span,
.footer-brand span {
  color: var(--green);
}

.brand small {
  margin-left: 8px;
  color: rgba(244, 241, 233, 0.58);
  font-family: "Helvetica Neue Light", "Helvetica Light", Helvetica, Arial, sans-serif;
  font-size: 0.52rem;
  font-weight: 300;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.desktop-nav {
  display: flex;
  gap: 36px;
  font-size: 0.72rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

.desktop-nav a,
.header-link {
  transition: color 180ms ease;
}

.desktop-nav a:hover,
.header-link:hover {
  color: var(--green);
}

.header-link {
  justify-self: end;
  padding: 10px 14px;
  border: 1px solid rgba(255, 255, 255, 0.2);
  border-radius: 9px;
  background: rgba(255, 255, 255, 0.07);
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 0.1em;
}

.hero {
  position: relative;
  min-height: 900px;
  height: 100vh;
  overflow: hidden;
  display: flex;
  align-items: center;
  padding: 130px 7vw 70px;
  color: var(--paper);
  background:
    radial-gradient(circle at 78% 28%, rgba(189, 231, 76, 0.1), transparent 27%),
    linear-gradient(145deg, #10291f 0%, #173a2c 54%, #10251d 100%);
}

.hero::before {
  position: absolute;
  inset: 0;
  content: "";
  opacity: 0.11;
  background-image: linear-gradient(rgba(255,255,255,.12) 1px, transparent 1px), linear-gradient(90deg, rgba(255,255,255,.12) 1px, transparent 1px);
  background-size: 8vw 8vw;
  mask-image: linear-gradient(to right, black, transparent 75%);
}

.hero-copy {
  position: relative;
  z-index: 2;
  width: 55%;
}

.eyebrow {
  margin: 0 0 30px;
  font-size: 0.68rem;
  font-weight: 400;
  letter-spacing: 0.18em;
  text-transform: uppercase;
}

h1,
h2,
h3,
p {
  font-weight: 300;
}

h1 {
  margin: 0;
  font-size: clamp(5.8rem, 10vw, 10.5rem);
  line-height: 0.78;
  letter-spacing: -0.085em;
}

h1 em,
h2 em {
  color: #d9ed9f;
  font-family: Georgia, "Times New Roman", serif;
  font-weight: 400;
}

.hero-intro {
  width: min(460px, 90%);
  margin: 55px 0 35px;
  color: #c6c7c0;
  font-size: 1.17rem;
  line-height: 1.55;
}

.primary-button {
  display: inline-flex;
  min-width: 220px;
  align-items: center;
  justify-content: space-between;
  padding: 17px 20px;
  color: var(--ink);
  border: 1px solid #d4ee89;
  border-radius: 11px;
  background: linear-gradient(180deg, #cef066, #b6da4d);
  box-shadow: inset 0 1px rgba(255, 255, 255, 0.42), 0 8px 22px rgba(0, 0, 0, 0.17);
  font-size: 0.72rem;
  font-weight: 400;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  transition: transform 180ms ease, background 180ms ease;
}

.primary-button:hover {
  transform: translateY(-3px);
  background: #d7ff60;
}

.hero-actions {
  display: flex;
  align-items: center;
  gap: 24px;
}

.text-button {
  padding: 12px 0;
  border-bottom: 1px solid rgba(244, 241, 233, 0.38);
  color: #d4d8d1;
  font-size: 0.7rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  transition: border-color 180ms ease, color 180ms ease;
}

.text-button:hover {
  color: var(--green);
  border-color: var(--green);
}

.signal-field {
  position: absolute;
  top: 50%;
  right: -1vw;
  width: min(46vw, 680px);
  aspect-ratio: 1;
  transform: translateY(-48%);
}

.signal-orbit {
  position: absolute;
  border: 1px solid rgba(241, 239, 231, 0.25);
  border-radius: 50%;
}

.signal-orbit::after {
  position: absolute;
  top: 50%;
  left: -4px;
  width: 7px;
  height: 7px;
  content: "";
  border-radius: 50%;
  background: var(--green);
}

.orbit-one { inset: 5%; animation: spin 22s linear infinite; }
.orbit-two { inset: 19%; animation: spin 16s linear infinite reverse; }
.orbit-three { inset: 33%; animation: spin 11s linear infinite; }

@keyframes spin {
  to { transform: rotate(360deg); }
}

.signal-core {
  position: absolute;
  inset: 39%;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  border-radius: 50%;
  color: var(--ink);
  background: var(--green);
  background: linear-gradient(145deg, #d4ef85, #acd33e);
  box-shadow: 0 0 80px rgba(189, 231, 76, 0.16), inset 0 1px rgba(255, 255, 255, 0.4);
}

.signal-core span {
  font-size: clamp(2rem, 4vw, 4.3rem);
  font-weight: 300;
  letter-spacing: -0.08em;
}

.signal-core small {
  font-size: 0.52rem;
  letter-spacing: 0.18em;
}

.signal-label {
  position: absolute;
  padding: 6px 9px;
  color: #a6a89f;
  background: var(--ink);
  font-size: 0.55rem;
  letter-spacing: 0.15em;
}

.label-one { top: 6%; left: 43%; }
.label-two { top: 51%; right: 0; }
.label-three { bottom: 12%; left: 12%; }

.hero-index,
.section-number {
  position: absolute;
  right: 3.5vw;
  bottom: 28px;
  color: #777970;
  font-size: 0.68rem;
  letter-spacing: 0.16em;
}

.ticker {
  overflow: hidden;
  padding: 18px 0;
  color: #f8f4e9;
  background: linear-gradient(90deg, #8d6b32, #a88647, #80602d);
}

.ticker-track {
  width: max-content;
  display: flex;
  align-items: center;
  gap: 28px;
  animation: ticker 25s linear infinite;
  font-size: 0.68rem;
  font-weight: 400;
  letter-spacing: 0.17em;
}

.ticker-track i {
  width: 5px;
  height: 5px;
  border-radius: 50%;
  background: #e5d6b9;
}

@keyframes ticker {
  to { transform: translateX(-50%); }
}

.mission {
  position: relative;
  display: grid;
  grid-template-columns: 1.25fr 0.75fr;
  gap: 8vw;
  padding: 150px 7vw 140px;
  border-bottom: 1px solid var(--line);
  background: rgba(255, 253, 247, 0.34);
}

.section-heading h2,
.access h2,
.download h2 {
  margin: 0;
  font-size: clamp(3.8rem, 6.5vw, 7.5rem);
  line-height: 0.93;
  letter-spacing: -0.07em;
}

.section-heading h2 em,
.access h2 em,
.download h2 em {
  color: var(--ink);
}

.mission-body {
  align-self: end;
  max-width: 470px;
}

.mission-body p:first-child {
  margin: 0 0 28px;
  color: var(--ink);
  font-family: Georgia, "Times New Roman", serif;
  font-size: 1.45rem;
  font-style: italic;
}

.mission-body p:last-child {
  margin: 0;
  color: #5c5e57;
  font-size: 1.05rem;
  line-height: 1.65;
}

.principles {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 16px;
  padding: 16px;
  background: var(--paper);
}

.principle-card {
  min-height: 610px;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  padding: 38px;
  overflow: hidden;
  border: 1px solid var(--line);
  border-radius: 20px;
  box-shadow: inset 0 1px rgba(255, 255, 255, 0.6), 0 16px 45px rgba(23, 36, 30, 0.07);
}

.card-number {
  font-size: 0.65rem;
  letter-spacing: 0.16em;
}

.principle-card h3 {
  margin: 0 0 18px;
  font-size: 2.35rem;
  letter-spacing: -0.055em;
}

.principle-card p {
  max-width: 350px;
  margin: 0;
  font-size: 0.98rem;
  line-height: 1.55;
}

.dark-card {
  color: var(--paper);
  background: linear-gradient(150deg, #19392d, #10251d);
}

.dark-card p { color: #adafa7; }
.green-card { background: linear-gradient(145deg, #dce9cf, #cbdcbf); }
.light-card { background: linear-gradient(145deg, #fffdf7, #ebe5d7); }

.speed-mark {
  height: 160px;
  display: flex;
  align-items: end;
  gap: 13px;
}

.speed-mark span {
  flex: 1;
  border-radius: 40px 40px 0 0;
  background: var(--green);
}

.speed-mark span:nth-child(1) { height: 22%; }
.speed-mark span:nth-child(2) { height: 42%; }
.speed-mark span:nth-child(3) { height: 64%; }
.speed-mark span:nth-child(4) { height: 82%; }
.speed-mark span:nth-child(5) { height: 100%; }

.globe-mark {
  position: relative;
  width: 190px;
  height: 190px;
  align-self: center;
  border: 1px solid var(--ink);
  border-radius: 50%;
}

.globe-mark::before,
.globe-mark::after,
.globe-mark span {
  position: absolute;
  content: "";
  border: 1px solid var(--ink);
  border-radius: 50%;
}

.globe-mark::before { inset: 0 35%; }
.globe-mark::after { inset: 35% 0; }
.globe-mark span { inset: 12%; border-style: dashed; }

.reach-mark {
  position: relative;
  width: 210px;
  height: 160px;
  align-self: center;
}

.reach-mark span {
  position: absolute;
  bottom: 0;
  left: 50%;
  border: 1px solid var(--ink);
  border-bottom: 0;
  border-radius: 200px 200px 0 0;
  transform: translateX(-50%);
}

.reach-mark span:nth-child(1) { width: 210px; height: 105px; }
.reach-mark span:nth-child(2) { width: 140px; height: 70px; }
.reach-mark span:nth-child(3) { width: 65px; height: 33px; background: var(--ink); }

.access {
  display: grid;
  grid-template-columns: 1fr 0.9fr;
  gap: 8vw;
  padding: 150px 7vw;
  color: var(--paper);
  background:
    radial-gradient(circle at 10% 85%, rgba(168, 134, 71, 0.14), transparent 30%),
    linear-gradient(145deg, #132f25, #0e251c);
}

.access h2 em {
  color: #d9ed9f;
}

.access-statement {
  padding-top: 15px;
  border-top: 1px solid #55574f;
}

.statement-index {
  margin: 0 0 95px;
  color: #85877f;
  font-size: 0.62rem;
  letter-spacing: 0.16em;
}

.large-statement {
  margin: 0 0 65px;
  font-size: clamp(2.8rem, 5vw, 5.3rem);
  line-height: 0.96;
  letter-spacing: -0.06em;
}

.large-statement span { color: var(--green); }

.fine-print {
  max-width: 420px;
  margin: 0;
  color: #8f9189;
  font-size: 0.8rem;
  line-height: 1.6;
}

.download {
  display: grid;
  grid-template-columns: 1fr 0.72fr;
  gap: 10vw;
  align-items: center;
  padding: 135px 7vw;
  overflow: hidden;
  background:
    radial-gradient(circle at 78% 35%, rgba(168, 134, 71, 0.14), transparent 31%),
    var(--paper);
}

.download h2 {
  margin: 0;
  font-size: clamp(3.8rem, 6.5vw, 7.5rem);
  line-height: 0.93;
  letter-spacing: -0.07em;
}

.download h2 em { color: var(--forest); }

.download-copy > p:not(.eyebrow) {
  max-width: 510px;
  margin: 30px 0;
  color: var(--muted);
  font-size: 1rem;
  line-height: 1.65;
}

.download-button {
  width: min(100%, 470px);
  display: grid;
  grid-template-columns: auto 1fr auto;
  align-items: center;
  gap: 16px;
  padding: 14px 17px 14px 13px;
  border: 1px solid #c5bdab;
  border-radius: 15px;
  background: rgba(255, 253, 247, 0.86);
  box-shadow: 0 14px 35px rgba(23, 36, 30, 0.09), inset 0 1px white;
  transition: transform 180ms ease, border-color 180ms ease, box-shadow 180ms ease;
}

.download-button:hover {
  transform: translateY(-3px);
  border-color: #8fa698;
  box-shadow: 0 19px 42px rgba(23, 36, 30, 0.13), inset 0 1px white;
}

.download-button > span:nth-child(2) { display: grid; gap: 4px; }
.download-button strong { color: var(--forest); font-size: 0.92rem; font-weight: 400; }
.download-button small { color: var(--muted); font-size: 0.68rem; }

.download-icon {
  width: 43px;
  height: 43px;
  display: grid;
  place-items: center;
  border: 1px solid #315c4b;
  border-radius: 12px;
  color: white;
  background: linear-gradient(180deg, #3a6755, #244f3e);
  box-shadow: inset 0 1px rgba(255,255,255,.18), 0 4px 12px rgba(36,79,62,.18);
}

.device-preview {
  position: relative;
  width: min(360px, 100%);
  aspect-ratio: 0.72;
  justify-self: center;
  padding: 25px;
  overflow: hidden;
  border: 1px solid #bdb4a2;
  border-radius: 42px;
  color: var(--paper);
  background: linear-gradient(155deg, #173b2d, #0f251c);
  box-shadow: 0 40px 80px rgba(23, 36, 30, 0.22), inset 0 1px rgba(255,255,255,.15), inset 0 0 0 7px #21382e;
  transform: rotate(3deg);
}

.device-top { display: flex; align-items: center; justify-content: space-between; font-size: .7rem; letter-spacing: .12em; }
.device-top i { width: 7px; height: 7px; border-radius: 50%; background: var(--green); box-shadow: 0 0 0 5px rgba(189,231,76,.12); }
.device-signal { position: absolute; inset: 18% 8% 34%; display: grid; place-items: center; }
.device-ring { position: absolute; border: 1px solid rgba(244,241,233,.25); border-radius: 50%; }
.ring-a { inset: 4%; }
.ring-b { inset: 22%; }
.device-signal b { width: 88px; height: 88px; display: grid; place-items: center; border-radius: 50%; color: var(--ink); background: var(--green); font-size: 2.2rem; font-weight: 300; box-shadow: 0 0 45px rgba(189,231,76,.2); }
.device-status { position: absolute; right: 25px; bottom: 30px; left: 25px; display: grid; gap: 7px; padding-top: 17px; border-top: 1px solid rgba(244,241,233,.22); }
.device-status small { color: #9ca79f; font-size: .52rem; letter-spacing: .16em; }
.device-status strong { font-family: Georgia, serif; font-size: 2rem; font-weight: 400; }
.device-status span { color: #b1b8b2; font-size: .72rem; }

footer {
  display: grid;
  grid-template-columns: 0.35fr 1fr auto;
  gap: 50px;
  align-items: end;
  padding: 50px 3.5vw;
  color: #90928a;
  background: var(--ink);
}

footer p {
  max-width: 720px;
  margin: 0;
  font-size: 0.68rem;
  line-height: 1.5;
}

footer a {
  color: var(--paper);
  font-size: 0.67rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
}

@media (max-width: 900px) {
  .desktop-nav { display: none; }
  .site-header { grid-template-columns: 1fr 1fr; }
  .hero { min-height: 820px; align-items: flex-start; padding-top: 180px; }
  .hero-copy { width: 100%; }
  .hero-intro { max-width: 370px; }
  .signal-field { width: 480px; top: auto; right: -170px; bottom: -130px; transform: none; opacity: .8; }
  .principles { grid-template-columns: 1fr; }
  .principle-card { min-height: 490px; }
  .mission, .access, .download { grid-template-columns: 1fr; }
  .mission-body { margin-top: 20px; }
  .access-statement { margin-top: 40px; }
  .statement-index { margin-bottom: 55px; }
  .download { gap: 75px; }
  footer { grid-template-columns: 1fr auto; }
  footer p { grid-column: 1 / -1; grid-row: 2; }
}

@media (max-width: 560px) {
  .site-header { padding: 22px 20px; }
  .header-link { font-size: .62rem; }
  .hero { min-height: 760px; padding: 145px 20px 60px; }
  h1 { font-size: clamp(4.7rem, 23vw, 7rem); }
  .hero-intro { margin-top: 42px; font-size: 1rem; }
  .signal-field { width: 370px; right: -170px; bottom: -75px; }
  .signal-label { display: none; }
  .mission, .access, .download { padding: 95px 20px; }
  .section-heading h2, .access h2, .download h2 { font-size: clamp(3.2rem, 16vw, 5rem); }
  .mission { gap: 65px; }
  .principle-card { min-height: 500px; padding: 28px 20px; }
  .principle-card h3 { font-size: 2rem; }
  .download { gap: 65px; }
  .hero-actions { align-items: flex-start; flex-direction: column; gap: 12px; }
  .device-preview { width: min(310px, 90vw); }
  footer { padding: 40px 20px; gap: 28px; }
  footer a { justify-self: end; }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  .signal-orbit, .ticker-track { animation: none; }
}