body {
    background:
      radial-gradient(circle at top left, rgba(76, 201, 240, 0.12), transparent 32%),
      #030614;
    color: white;
    font-family: "Space Grotesk", sans-serif;
    margin: 0;
    padding: 0;
  }

h1 {
    margin-top: 20px;
}

.controls {
    margin: 20px;
}

select {
    margin: 10px;
    padding: 6px 10px;
    border-radius: 6px;
    border: none;
}


svg {
  font-family: "Space Grotesk", sans-serif;
}

/* ==================================================
   NAVBAR
   ==================================================*/

.top-nav {
  height: 72px;
  padding: 0 56px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  background: rgba(5, 10, 25, 0.82);
  border-bottom: 1px solid rgba(255, 255, 255, 0.08);
  backdrop-filter: blur(12px);
  position: sticky;
  top: 0;
  z-index: 20;
}

.brand {
  display: flex;
  align-items: center;
  gap: 12px;
}

.brand-icon {
  width: 34px;
  height: 34px;
  color: #9d8cff;
  display: flex;
  align-items: center;
  justify-content: center;
}

.brand-icon svg {
  width: 100%;
  height: 100%;
}

.brand-name {
  font-size: 18px;
  font-weight: 700;
  letter-spacing: 0.06em;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 42px;
}

.nav-links a {
  position: relative;
  color: #cbd5e1;
  text-decoration: none;
  text-transform: uppercase;
  font-size: 13px;
  font-weight: 700;
  letter-spacing: 0.12em;
  padding: 28px 0 22px;
}

.nav-links a.active {
  color: white;
}

.nav-links a.active::after,
.nav-links a:hover::after {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  bottom: 16px;
  height: 2px;
  background: #4cc9f0;
  border-radius: 99px;
}

.nav-links a:hover {
  color: white;
}
/* ==================================================
   hero
   ==================================================*/


.hero-orbit {
  position: relative;
  overflow: hidden;
  padding: 120px 80px 64px;
  background: transparent;
}

.hero-content {
  position: relative;
  z-index: 2;

  max-width: 700px;
  text-align: left;
  margin-left: 40px;
}

.hero-eyebrow {
  color: #7dd3fc;

  font-size: 14px;
  letter-spacing: 0.22em;
  font-weight: 700;

  margin-bottom: 24px;
  margin-bottom: 72px;
}

.hero h1 {
  font-size: 84px;
  line-height: 0.95;

  margin: 0 0 32px;

  font-weight: 700;

  color: white;
}

.hero-description {
  max-width: 520px;

  font-size: 24px;
  line-height: 1.6;

  color: #cbd5e1;
}


.hero-earth {
  position: absolute;

  right: -500px;
  top: 20px;

  width: 1700px;

  opacity: 0.75;

  pointer-events: none;
}

.hero-earth img {
  width: 100%;
  display: block;
}


/* =============================
  first plot
   =============================*/

.feature-card {
  position: relative;
  z-index: 3;
  width: min(1200px, calc(100% - 48px));
  margin: 100px auto 48px; /* (top / horizontal / bottom) */
  padding: 36px;

  display: grid;
  grid-template-columns: 1.4fr 1fr;
  gap: 48px;
  align-items: center;

  background: rgba(5, 10, 25, 0.9);
  border: 1px solid rgba(148, 163, 184, 0.18);
  border-radius: 3px;
  box-shadow: 0 24px 80px rgba(0, 0, 0, 0.35);
}

.feature-viz {
  text-align: center;
}

.feature-viz h2 {
  margin: 0 0 18px;
  font-size: 26px;
}

.feature-copy {
  text-align: left;
}

.section-kicker {
  margin: 0 0 16px;
  color: #7dd3fc;
  font-size: 13px;
  font-weight: 700;
  letter-spacing: 0.22em;
}

.feature-copy h2 {
  margin: 0 0 20px;
  font-size: 38px;
  font-weight: 500;
}

.feature-copy p {
  color: #cbd5e1;
  font-size: 18px;
  line-height: 1.7;
}


.orbit-zone {
  opacity: 0.035;
}

.zone-leo {
  fill: #4cc9f0;
}

.zone-meo {
  fill: #9d4edd;
}

.zone-geo {
  fill: #f4a261;
}

.orbit-cutout {
  fill: #101935;
}

.orbit-boundary {
  fill: none;
  stroke-width: 0.8;
  stroke-dasharray: 4, 6;
  opacity: 0.45;
}

.boundary-leo {
  stroke: #4cc9f0;
}

.boundary-meo {
  stroke: #9d4edd;
}

.boundary-geo {
  stroke: #f4a261;
}

.earth {
  fill: #1d3557;
  stroke: rgba(224, 225, 221, 0.7);
  stroke-width: 1;
}

.satellite-dot {
  opacity: 0.6;
}

.satellite-leo {
  fill: #4cc9f0;
}

.satellite-meo {
  fill: #f15bb5;
}

.satellite-geo {
  fill: #f4a261;
}
.label {
  text-anchor: middle;
}

.orbit-label {
  font-size: 14px;
}

.label-earth {
  fill: white;
}

.label-leo {
  fill: #4cc9f0;
}

.label-meo {
  fill: #9d4edd;
}

.label-geo {
  fill: #f4a261;
}

.note {
  fill: #adb5bd;
  font-size: 11px;
  text-anchor: middle;
  opacity: 0.8;
}


/* ==================================================
  second plot
   ==================================================*/

.leo-title {
  fill: white;
  font-size: 24px;
  font-weight: bold;
  text-anchor: middle;
}

.leo-subtitle,
.leo-altitude-text {
  fill: #adb5bd;
  font-size: 14px;
}

.leo-guide-line {
  stroke: white;
  stroke-width: 2;
}

.leo-segment {
  fill: #4cc9f0;
  stroke: white;
  stroke-opacity: 0.35;
  stroke-width: 1;
}

.leo-segment-even {
  fill-opacity: 0.22;
}

.leo-segment-odd {
  fill-opacity: 0.14;
}

.leo-owner-text {
  fill: white;
  font-size: 16px;
  font-weight: bold;
  text-anchor: middle;
}

.leo-small-text {
  fill: #cbd5e1;
  font-size: 11px;
  text-anchor: middle;
}

.altitude-label {
  fill: white;
  font-size: 16px;
  text-anchor: middle;
}

.zoom-viz {
    height: 700px;
    width: 520px;
    margin: 20px auto;
    background-color: #101935;
    border-radius: 12px;
}

.geo-container {
  width: 90%;
  max-width: 1200px;
  margin: 40px auto;
  background-color: #101935;
  border-radius: 12px;
  padding: 20px;
}

.geo-line {
  stroke: #f4a261;
  stroke-width: 1;
  opacity: 0.4;
}

.geo-title {
  fill: white;
  font-size: 18px;
  text-anchor: middle;
}

.geo-map {
  fill: #0b132b;
  stroke: #1d3557;
  stroke-width: 1.5;
  rx: 10;
}
.geo-world-map {
  opacity: 1;
}

.geo-grid-line {
  stroke: #1d3557;
  stroke-width: 1;
  opacity: 0.7;
}

.geo-equator {
  stroke: #4cc9f0;
  stroke-width: 1;
  opacity: 0.5;
}

.geo-longitude-label {
  fill: #adb5bd;
  font-size: 13px;
  text-anchor: middle;
  letter-spacing: 1px;
}

.geo-satellite-dot {
  fill: #f4a261;
  opacity: 0.3;
}
.geo-satellite-dot-selected {
  fill: #4cc9f0;
  opacity: 1;
}

.geo-projection-line {
  stroke: #f4a261;
  stroke-width: 0.6;
  opacity: 0.18;
}

.geo-ground-dot {
  fill: #4cc9f0;
  opacity: 0.65;
}