:root {
  color-scheme: dark;
  --bg: #030a12;
  --bg-2: #071522;
  --panel: rgba(9, 24, 38, 0.88);
  --panel-2: rgba(12, 32, 50, 0.94);
  --panel-3: #0d2235;
  --border: rgba(100, 210, 235, 0.18);
  --border-strong: rgba(100, 235, 255, 0.34);
  --text: #f4fbff;
  --muted: #9db5c3;
  --muted-2: #6f8998;
  --cyan: #48e0ff;
  --teal: #16d6b3;
  --navy: #06111d;
  --shadow: rgba(0, 0, 0, 0.35);
  --glow: rgba(72, 224, 255, 0.18);
  --danger: #ff7d7d;
  --radius: 8px;
  --max: 1180px;
}

* {
  box-sizing: border-box;
}

html {
  background: var(--bg);
}

body {
  margin: 0;
  min-height: 100vh;
  background:
    radial-gradient(circle at 78% 5%, rgba(72, 224, 255, 0.12), transparent 26rem),
    radial-gradient(circle at 14% 18%, rgba(22, 214, 179, 0.09), transparent 22rem),
    linear-gradient(180deg, #03101a 0%, var(--bg) 42%, #02070d 100%);
  color: var(--text);
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  line-height: 1.6;
}

body::before {
  background-image:
    linear-gradient(rgba(72, 224, 255, 0.04) 1px, transparent 1px),
    linear-gradient(90deg, rgba(72, 224, 255, 0.04) 1px, transparent 1px);
  background-size: 64px 64px;
  content: "";
  inset: 0;
  pointer-events: none;
  position: fixed;
  mask-image: linear-gradient(to bottom, rgba(0, 0, 0, 0.72), transparent 72%);
}

a {
  color: var(--cyan);
  text-decoration: none;
}

a:hover {
  color: #9cf2ff;
}

p {
  color: var(--muted);
}

.site-header {
  align-items: center;
  backdrop-filter: blur(18px);
  background: rgba(3, 10, 18, 0.86);
  border-bottom: 1px solid var(--border);
  box-shadow: 0 14px 40px rgba(0, 0, 0, 0.18);
  display: flex;
  gap: 24px;
  justify-content: space-between;
  padding: 14px max(18px, calc((100vw - var(--max)) / 2));
  position: sticky;
  top: 0;
  z-index: 20;
}

.brand {
  align-items: center;
  color: var(--text);
  display: inline-flex;
  gap: 12px;
  min-width: 0;
}

.brand:hover {
  text-decoration: none;
}

.brand strong {
  display: block;
  font-size: 1rem;
  letter-spacing: 0.02em;
}

.brand em {
  color: var(--muted);
  display: block;
  font-size: 0.78rem;
  font-style: normal;
  line-height: 1.2;
}

.brand-mark {
  border-radius: 50%;
  flex: 0 0 auto;
  height: 42px;
  width: 42px;
  filter: drop-shadow(0 0 18px rgba(72, 224, 255, 0.28));
}

nav {
  align-items: center;
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

nav a {
  border: 1px solid transparent;
  border-radius: 999px;
  color: var(--muted);
  font-size: 0.9rem;
  padding: 8px 11px;
}

nav a:hover {
  background: rgba(72, 224, 255, 0.08);
  border-color: var(--border);
  color: var(--text);
}

main {
  margin: 0 auto;
  max-width: var(--max);
  padding: 0 18px 72px;
  position: relative;
  z-index: 1;
}

.hero {
  align-items: center;
  display: grid;
  gap: clamp(28px, 5vw, 64px);
  grid-template-columns: minmax(0, 1.08fr) minmax(280px, 0.72fr);
  min-height: min(760px, calc(100vh - 72px));
  padding: clamp(48px, 8vw, 92px) 0 44px;
}

.hero-copy,
.page-title,
.dossier-header {
  max-width: 920px;
}

.hero h1,
.page-title h1,
.dossier-header h1 {
  color: var(--text);
  font-size: clamp(2.5rem, 6vw, 5.8rem);
  letter-spacing: 0;
  line-height: 0.98;
  margin: 0 0 20px;
}

.hero h1 {
  max-width: 900px;
}

.lede,
.dossier-summary,
.page-title > p {
  color: #cfe6ef;
  font-size: clamp(1.05rem, 2vw, 1.35rem);
  max-width: 780px;
}

.eyebrow {
  color: var(--teal);
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 0.14em;
  margin: 0 0 14px;
  text-transform: uppercase;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 30px;
}

.button {
  align-items: center;
  background: linear-gradient(135deg, var(--cyan), var(--teal));
  border: 1px solid rgba(255, 255, 255, 0.12);
  border-radius: 999px;
  box-shadow: 0 14px 34px rgba(22, 214, 179, 0.18);
  color: #021119;
  display: inline-flex;
  font-weight: 800;
  justify-content: center;
  min-height: 44px;
  padding: 10px 18px;
}

.button:hover {
  color: #021119;
  filter: brightness(1.08);
  text-decoration: none;
}

.button.secondary {
  background: rgba(72, 224, 255, 0.06);
  border-color: var(--border-strong);
  box-shadow: none;
  color: var(--text);
}

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

.hero-visual {
  align-items: center;
  aspect-ratio: 1 / 1;
  background:
    radial-gradient(circle, rgba(72, 224, 255, 0.16) 0 2px, transparent 3px),
    radial-gradient(circle, rgba(72, 224, 255, 0.1), transparent 58%);
  border: 1px solid var(--border);
  border-radius: 50%;
  display: grid;
  justify-items: center;
  max-width: 440px;
  padding: 36px;
  position: relative;
}

.hero-visual::before,
.hero-visual::after,
.radar-orbit {
  border: 1px solid rgba(72, 224, 255, 0.16);
  border-radius: 50%;
  content: "";
  inset: 9%;
  position: absolute;
}

.hero-visual::after {
  inset: 24%;
}

.radar-orbit {
  border-color: rgba(22, 214, 179, 0.24);
  inset: 38%;
}

.hero-visual img {
  filter: drop-shadow(0 0 28px rgba(72, 224, 255, 0.3));
  max-width: min(280px, 78%);
  position: relative;
  z-index: 1;
}

.signal-readout {
  background: rgba(3, 10, 18, 0.82);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  bottom: 14%;
  box-shadow: 0 18px 40px rgba(0, 0, 0, 0.24);
  left: 50%;
  padding: 10px 12px;
  position: absolute;
  transform: translateX(-50%);
  width: min(260px, 78%);
  z-index: 2;
}

.signal-readout span,
.source-label,
.signal-count {
  color: var(--teal);
  display: block;
  font-size: 0.72rem;
  font-weight: 800;
  letter-spacing: 0.1em;
  text-transform: uppercase;
}

.signal-readout strong {
  color: var(--text);
  display: block;
  font-size: 0.95rem;
}

.page-title,
.dossier-header {
  border-bottom: 1px solid var(--border);
  padding: clamp(44px, 7vw, 78px) 0 32px;
  position: relative;
}

.page-title::after,
.dossier-header::after {
  background: linear-gradient(90deg, var(--cyan), transparent);
  bottom: -1px;
  content: "";
  height: 1px;
  left: 0;
  position: absolute;
  width: min(360px, 72vw);
}

.search-shell {
  background: rgba(72, 224, 255, 0.06);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  color: var(--muted);
  display: flex;
  flex-wrap: wrap;
  gap: 8px 14px;
  margin-top: 24px;
  max-width: 680px;
  padding: 14px 16px;
}

.search-shell span {
  color: var(--teal);
  font-weight: 800;
  text-transform: uppercase;
}

.search-shell strong {
  color: var(--text);
}

.notice {
  background:
    linear-gradient(135deg, rgba(72, 224, 255, 0.1), rgba(22, 214, 179, 0.04)),
    rgba(7, 21, 34, 0.86);
  border: 1px solid var(--border-strong);
  border-radius: var(--radius);
  box-shadow: 0 20px 50px rgba(0, 0, 0, 0.2);
  margin: 30px 0;
  max-width: 980px;
  padding: 18px 20px;
}

.notice strong {
  color: var(--text);
  display: block;
  margin-bottom: 4px;
}

.notice p {
  margin: 0;
}

.section,
.dossier-section {
  margin-top: 36px;
  max-width: 1080px;
}

.section-heading {
  align-items: end;
  display: flex;
  gap: 18px;
  justify-content: space-between;
  margin-bottom: 18px;
}

.section-heading h2,
.dossier-section h2,
.feature-card h2 {
  color: var(--text);
  font-size: clamp(1.35rem, 3vw, 2rem);
  line-height: 1.15;
  margin: 0 0 12px;
}

.feature-grid,
.card-grid {
  display: grid;
  gap: 16px;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
}

.card-grid.compact {
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
}

.card,
.feature-card,
.claim-list li,
.mention-list li {
  background:
    linear-gradient(180deg, rgba(72, 224, 255, 0.045), transparent),
    var(--panel);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  box-shadow: 0 18px 42px rgba(0, 0, 0, 0.18);
}

.card,
.feature-card {
  min-height: 100%;
  padding: 18px;
  transition: border-color 160ms ease, transform 160ms ease, background 160ms ease;
}

.card:hover,
.feature-card:hover {
  background:
    linear-gradient(180deg, rgba(72, 224, 255, 0.075), transparent),
    var(--panel-2);
  border-color: var(--border-strong);
  transform: translateY(-2px);
}

.card h2,
.card h3 {
  line-height: 1.2;
  margin: 14px 0 9px;
}

.card p,
.feature-card p {
  margin-bottom: 0;
}

.feature-icon {
  align-items: center;
  border: 1px solid var(--border-strong);
  border-radius: 999px;
  color: var(--cyan);
  display: inline-flex;
  font-size: 0.78rem;
  font-weight: 800;
  height: 34px;
  justify-content: center;
  margin-bottom: 16px;
  width: 34px;
}

.badges {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.badges span {
  background: rgba(72, 224, 255, 0.06);
  border: 1px solid var(--border);
  border-radius: 999px;
  color: #b8d7e3;
  font-size: 0.7rem;
  font-weight: 800;
  letter-spacing: 0.08em;
  padding: 4px 8px;
  text-transform: uppercase;
}

.dossier {
  max-width: 1120px;
}

.dossier-header {
  background:
    radial-gradient(circle at 92% 8%, rgba(72, 224, 255, 0.14), transparent 18rem),
    linear-gradient(180deg, rgba(72, 224, 255, 0.04), transparent);
}

.claim-list,
.mention-list {
  list-style: none;
  margin: 0;
  padding: 0;
}

.claim-list li,
.mention-list li {
  margin-bottom: 12px;
  padding: 15px;
}

.mention-list li {
  position: relative;
}

.claim-list p,
.mention-list p {
  margin: 0 0 7px;
}

.claim-list span {
  color: var(--muted);
  font-size: 0.92rem;
}

.faq-list li {
  background:
    linear-gradient(90deg, rgba(22, 214, 179, 0.08), transparent 55%),
    var(--panel);
}

.link-grid {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

.link-grid a,
.link-grid span {
  background: rgba(72, 224, 255, 0.05);
  border: 1px solid var(--border);
  border-radius: 999px;
  color: var(--text);
  padding: 8px 11px;
}

.related-chip:hover,
.link-grid a:hover {
  background: rgba(72, 224, 255, 0.12);
  border-color: var(--border-strong);
  text-decoration: none;
}

.radar-card {
  position: relative;
}

.radar-card::before {
  background: var(--teal);
  border-radius: 50%;
  box-shadow: 0 0 16px var(--teal);
  content: "";
  height: 7px;
  position: absolute;
  right: 18px;
  top: 18px;
  width: 7px;
}

.signal-count {
  margin-top: 14px;
}

.site-footer {
  align-items: center;
  border-top: 1px solid var(--border);
  color: var(--muted);
  display: flex;
  gap: 20px;
  justify-content: space-between;
  margin: 0 auto;
  max-width: var(--max);
  padding: 26px 18px 34px;
  position: relative;
  z-index: 1;
}

.site-footer strong {
  color: var(--text);
}

.site-footer p {
  margin: 4px 0 0;
}

@media (max-width: 860px) {
  .hero {
    grid-template-columns: 1fr;
    min-height: 0;
  }

  .hero-visual {
    max-width: 340px;
  }
}

@media (max-width: 720px) {
  .site-header {
    align-items: flex-start;
    flex-direction: column;
  }

  .brand em {
    max-width: 260px;
  }

  nav {
    width: 100%;
  }

  nav a {
    padding-left: 0;
  }

  .hero h1,
  .page-title h1,
  .dossier-header h1 {
    font-size: clamp(2.2rem, 12vw, 3.8rem);
  }

  .section-heading,
  .site-footer {
    align-items: flex-start;
    flex-direction: column;
  }
}