:root {
  --bg: #04090f;
  --bg-2: #08121c;
  --surface: #0c1a2a;
  --border: #163049;
  --text: #cfe6ff;
  --text-dim: #7c8fa3;
  --cyan: #0fb3ff;
  --amber: #ffb23a;
  --red: #ff4060;
  --green: #2ee59d;
  --mono: "JetBrains Mono", ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, monospace;
  --sans: "Inter", ui-sans-serif, system-ui, -apple-system, Segoe UI, Roboto, Helvetica, Arial, sans-serif;
  --radius: 14px;
  --max-width: 1160px;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
html, body { height: 100%; }
body {
  margin: 0;
  font-family: var(--sans);
  color: var(--text);
  background:
    radial-gradient(1200px 800px at 10% -10%, #0e2a44, transparent),
    radial-gradient(900px 700px at 110% 20%, #10223a, transparent),
    var(--bg);
  background-attachment: fixed;
  line-height: 1.5;
  -webkit-font-smoothing: antialiased;
}

.skip-link {
  position: absolute;
  left: -999px;
  top: auto;
  width: 1px;
  height: 1px;
  overflow: hidden;
}
.skip-link:focus {
  position: fixed;
  left: 16px;
  top: 16px;
  width: auto;
  height: auto;
  padding: 10px 14px;
  background: var(--surface);
  color: var(--cyan);
  border: 1px solid var(--cyan);
  border-radius: 10px;
  z-index: 1000;
}

.starfield {
  position: fixed;
  inset: 0;
  pointer-events: none;
  z-index: 0;
  overflow: hidden;
}
#starfield {
  width: 100%;
  height: 100%;
  display: block;
}
.grid-floor {
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(to right, rgba(15,179,255,0.06) 1px, transparent 1px),
    linear-gradient(to bottom, rgba(15,179,255,0.06) 1px, transparent 1px);
  background-size: 40px 40px;
  mask-image: radial-gradient(900px 500px at 50% -20%, black 20%, transparent 70%);
  -webkit-mask-image: radial-gradient(900px 500px at 50% -20%, black 20%, transparent 70%);
}

.hud.topbar {
  position: sticky;
  top: 0;
  z-index: 50;
  backdrop-filter: blur(14px) saturate(115%);
  -webkit-backdrop-filter: blur(14px) saturate(115%);
  background: rgba(8, 22, 40, 0.82);
  border-bottom: 1px solid var(--border);
}
.topbar-inner {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 18px 22px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 22px;
}
.brand {
  display: flex;
  align-items: center;
  gap: 12px;
}
.brand-mark {
  color: var(--cyan);
  filter: drop-shadow(0 0 10px rgba(15,179,255,0.5));
  font-size: 22px;
  line-height: 1;
}
.brand-name {
  font-family: var(--mono);
  font-weight: 600;
  letter-spacing: 0.18em;
  color: #e7f4ff;
}
.brand-role {
  color: var(--text-dim);
  font-size: 12px;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  padding: 4px 8px;
  border: 1px solid var(--border);
  border-radius: 999px;
}
.top-nav {
  display: flex;
  align-items: center;
  gap: 18px;
}
.hud-link {
  color: #dbefff;
  text-decoration: none;
  font-weight: 500;
  padding: 6px 8px;
  border-radius: 10px;
}
.hud-link:hover, .hud-link:focus {
  color: var(--cyan);
  outline: none;
  box-shadow: 0 0 0 1px var(--cyan) inset;
}
.status-cluster {
  display: flex;
  align-items: center;
  gap: 14px;
}
.status-pill {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 6px 10px;
  border-radius: 999px;
  font-family: var(--mono);
  font-size: 12px;
  font-weight: 600;
  letter-spacing: 0.08em;
  border: 1px solid transparent;
}
.status-pill::before {
  content: "";
  width: 7px;
  height: 7px;
  border-radius: 50%;
  box-shadow: 0 0 8px currentColor;
}
.status-online { color: var(--green); border-color: rgba(46,229,157,0.35); background: rgba(46,229,157,0.08); }
.status-online::before { background: var(--green); }
.status-demo { color: var(--amber); border-color: rgba(255,178,58,0.35); background: rgba(255,178,58,0.08); }
.status-demo::before { background: var(--amber); }
.status-standby { color: #7c8fa3; border-color: rgba(124,143,163,0.4); background: rgba(124,143,163,0.08); }
.status-standby::before { background: #a0b1c1; }
.clock {
  font-family: var(--mono);
  color: #a7c3df;
  font-size: 12px;
  letter-spacing: 0.12em;
}

.hero {
  position: relative;
  z-index: 1;
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 58px 22px 32px;
  display: grid;
  grid-template-columns: 1.2fr 0.8fr;
  gap: 30px;
  align-items: center;
}
.hero-kicker {
  color: var(--amber);
  font-family: var(--mono);
  font-size: 12px;
  letter-spacing: 0.18em;
  margin-bottom: 14px;
}
#hero-title {
  font-size: clamp(34px, 5vw, 60px);
  line-height: 1.05;
  letter-spacing: -0.03em;
  margin: 0 0 16px;
  color: #ffffff;
}
.hero-lead {
  color: var(--text-dim);
  font-size: clamp(16px, 1.8vw, 18px);
  max-width: 560px;
  margin: 0 0 24px;
}
.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
  margin-bottom: 22px;
}
.btn {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  border: 1px solid transparent;
  border-radius: 12px;
  padding: 12px 16px;
  font-weight: 600;
  letter-spacing: 0.04em;
  cursor: pointer;
  text-decoration: none;
  background: transparent;
  color: inherit;
}
.btn-primary {
  background: linear-gradient(135deg, #0a5ea6, #0fb3ff);
  color: #00111d;
  border-color: transparent;
  box-shadow: 0 0 0 0 rgba(15,179,255,0.25);
}
.btn-primary:hover, .btn-primary:focus {
  box-shadow: 0 0 0 8px rgba(15,179,255,0.08);
  outline: none;
}
.btn-ghost {
  border-color: var(--border);
  color: #e7f4ff;
  background: rgba(12,26,42,0.55);
}
.btn-ghost:hover, .btn-ghost:focus {
  border-color: #8ab8ff;
  outline: none;
}
.btn-deploy {
  width: 100%;
  justify-content: center;
  margin-top: 14px;
  color: #00131f;
  background: linear-gradient(135deg, #132f46, #153e5c);
  border: 1px solid #1f4f74;
}
.btn-deploy:hover, .btn-deploy:focus {
  border-color: var(--cyan);
  outline: none;
}
.btn-deploy.deployed {
  background: rgba(46,229,157,0.1);
  border-color: rgba(46,229,157,0.45);
  color: var(--green);
}
.hero-proof-key {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}
.proof-tag {
  display: inline-block;
  padding: 5px 9px;
  border-radius: 999px;
  font-family: var(--mono);
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 0.1em;
  border: 1px solid transparent;
}
.proof-real { color: var(--green); background: rgba(46,229,157,0.08); border-color: rgba(46,229,157,0.35); }
.proof-concept { color: var(--amber); background: rgba(255,178,58,0.08); border-color: rgba(255,178,58,0.35); }
.proof-demo { color: #a78bfa; background: rgba(167,139,250,0.08); border-color: rgba(167,139,250,0.35); }

.radar {
  position: relative;
  aspect-ratio: 1 / 1;
  max-width: 340px;
  border: 1px solid var(--border);
  border-radius: 999px;
  background:
    radial-gradient(circle at center, rgba(15,179,255,0.06), transparent 60%),
    var(--surface);
  box-shadow: inset 0 0 40px rgba(15,179,255,0.06);
}
.radar-ring {
  position: absolute;
  inset: 18%;
  border: 1px solid var(--border);
  border-radius: 50%;
}
.radar-sweep {
  position: absolute;
  inset: 0;
  border-radius: 50%;
  background: conic-gradient(from 0deg, rgba(15,179,255,0.18), rgba(15,179,255,0.06), transparent 60%);
  animation: radar-spin 5s linear infinite;
  filter: drop-shadow(0 0 14px rgba(15,179,255,0.18));
}
@keyframes radar-spin {
  from { transform: rotate(0deg); }
  to { transform: rotate(360deg); }
}
.radar-center {
  position: absolute;
  width: 10px;
  height: 10px;
  background: var(--cyan);
  border-radius: 50%;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  box-shadow: 0 0 20px var(--cyan);
}
.radar-label {
  position: absolute;
  bottom: 18%;
  left: 0;
  right: 0;
  text-align: center;
  font-family: var(--mono);
  font-size: 12px;
  color: var(--text-dim);
  letter-spacing: 0.16em;
}

section {
  position: relative;
  z-index: 1;
}
.section-header, .missions, .telemetry {
  max-width: var(--max-width);
  margin-left: auto;
  margin-right: auto;
  padding: 26px 22px;
}
.section-header {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  gap: 14px;
  flex-wrap: wrap;
  padding-top: 18px;
}
.section-header h2 { margin: 0; }
.section-meta { color: var(--text-dim); font-family: var(--mono); font-size: 12px; letter-spacing: 0.12em; }

.mission-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 18px;
}
.mission-card {
  background: linear-gradient(180deg, rgba(12,26,42,0.78), rgba(8,18,32,0.82));
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 18px;
  transition: transform 200ms ease, border-color 200ms ease, box-shadow 200ms ease;
}
.mission-card:hover, .mission-card:focus-within {
  transform: translateY(-2px);
  border-color: #3a7ab8;
  box-shadow: 0 18px 50px rgba(0,0,0,0.45), 0 0 0 1px rgba(15,179,255,0.08);
}
.mission-hud {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 14px;
}
.mission-id {
  font-family: var(--mono);
  color: var(--text-dim);
  font-size: 12px;
  letter-spacing: 0.18em;
}
.mission-name { margin: 0 0 8px; font-size: 22px; letter-spacing: -0.01em; color: #e7f4ff; }
.mission-desc { margin: 0; color: var(--text-dim); font-size: 14px; }
.mission-meta {
  margin-top: 14px;
  display: flex;
  align-items: center;
  gap: 10px;
}
.mission-stat { color: #a7c3df; font-family: var(--mono); font-size: 12px; letter-spacing: 0.1em; }

.telemetry-board {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 16px;
}
.telemetry-panel {
  background: rgba(12,26,42,0.7);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 16px;
}
.telemetry-label {
  font-family: var(--mono);
  color: var(--text-dim);
  font-size: 12px;
  letter-spacing: 0.18em;
  margin-bottom: 10px;
}
.bar-track {
  height: 10px;
  background: rgba(255,255,255,0.06);
  border-radius: 999px;
  overflow: hidden;
  border: 1px solid var(--border);
}
.bar-fill {
  height: 100%;
  width: 0%;
  background: linear-gradient(90deg, var(--cyan), #7dd3fc);
  border-radius: inherit;
  transition: width 900ms ease;
}
.telemetry-value {
  margin-top: 8px;
  font-family: var(--mono);
  color: #e7f4ff;
  font-size: 14px;
}
.stream {
  margin: 0;
  font-family: var(--mono);
  font-size: 12px;
  color: #a7c3df;
  white-space: pre-wrap;
  max-height: 180px;
  overflow: hidden;
  line-height: 1.5;
}

.hud.footer {
  position: relative;
  z-index: 1;
  border-top: 1px solid var(--border);
  background: rgba(8,18,32,0.7);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  margin-top: 18px;
}
.footer-inner {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 18px 22px;
  display: flex;
  justify-content: space-between;
  gap: 18px;
  flex-wrap: wrap;
  color: var(--text-dim);
}
.footer-proof-disclosure a { color: var(--cyan); text-decoration: none; }
.footer-proof-disclosure a:hover { text-decoration: underline; }

.guide { max-width: 860px; margin: 0 auto; padding: 36px 22px 40px; }
.guide h1 { margin: 0 0 12px; }
.guide-intro { color: var(--text-dim); margin: 0 0 26px; }
.guide h2 { margin: 28px 0 12px; color: #e7f4ff; }
.guide li { margin: 8px 0; color: var(--text-dim); }
.proof-legend { display: grid; gap: 16px; margin-top: 10px; }
.proof-item { background: rgba(12,26,42,0.65); border: 1px solid var(--border); border-radius: var(--radius); padding: 16px; }
.proof-item p { margin: 8px 0 0; color: var(--text-dim); }

.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 { grid-template-columns: 1fr; }
  .radar { max-width: 260px; margin: 0 auto; }
  .mission-grid { grid-template-columns: 1fr; }
  .top-nav { display: none; }
}
@media (max-width: 580px) {
  .telemetry-board { grid-template-columns: 1fr; }
  .topbar-inner { flex-wrap: wrap; }
  .hero { padding-top: 32px; }
}

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
    scroll-behavior: auto !important;
  }
}