:root {
  color-scheme: dark;
  --bg: #050608;
  --bg-elevated: #0c0e14;
  --bg-card: rgba(12, 14, 20, 0.78);
  --border: rgba(255, 255, 255, 0.09);
  --border-strong: rgba(255, 255, 255, 0.2);
  --text: #ffffff;
  --text-muted: #8e97a6;
  --text-dim: #5c6473;
  --accent: #ffffff;
  --glow: rgba(255, 255, 255, 0.07);
  --radius: 18px;
  --max-w: 1080px;
}

*,
*::before,
*::after {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  min-block-size: 100dvh;
  background-color: var(--bg);
  color: var(--text);
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Inter, "Helvetica Neue", Arial, sans-serif;
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
  position: relative;
}

/* Subtle futuristic grid + radial ambiance */
body::before {
  content: "";
  position: fixed;
  inset: 0;
  z-index: -2;
  background-image:
    radial-gradient(circle at 50% -10%, rgba(255, 255, 255, 0.075), transparent 55%),
    linear-gradient(to right, rgba(255, 255, 255, 0.022) 1px, transparent 1px),
    linear-gradient(to bottom, rgba(255, 255, 255, 0.022) 1px, transparent 1px);
  background-size: 100% 100%, 64px 64px, 64px 64px;
  pointer-events: none;
}

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

:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 3px;
  border-radius: 6px;
}

.container {
  inline-size: min(100% - 2.5rem, var(--max-w));
  margin-inline: auto;
}

/* Header & Navigation */
.site-header {
  position: sticky;
  inset-block-start: 0;
  z-index: 40;
  background: rgba(5, 6, 8, 0.82);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border-block-end: 1px solid var(--border);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  min-block-size: 70px;
}

.brand-mark {
  display: inline-flex;
  align-items: center;
  gap: 0.7rem;
  font-weight: 900;
  font-size: 1.05rem;
  letter-spacing: 0.34em;
  text-transform: uppercase;
  color: var(--text);
}

.brand-dot {
  inline-size: 9px;
  block-size: 9px;
  border-radius: 50%;
  background: var(--text);
  box-shadow: 0 0 14px rgba(255, 255, 255, 0.85);
}

.site-nav ul {
  display: flex;
  align-items: center;
  gap: 0.35rem;
  list-style: none;
  margin: 0;
  padding: 0;
  flex-wrap: wrap;
}

.site-nav a {
  display: inline-block;
  padding: 0.45rem 0.85rem;
  font-size: 0.82rem;
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--text-muted);
  border-radius: 999px;
  border: 1px solid transparent;
  transition: color 0.2s ease, border-color 0.2s ease, background-color 0.2s ease;
}

.site-nav a:hover {
  color: var(--text);
  background: rgba(255, 255, 255, 0.04);
}

.site-nav a[aria-current="page"] {
  color: var(--text);
  border-color: var(--border-strong);
  background: rgba(255, 255, 255, 0.06);
}

/* Hero */
.hero {
  padding-block: clamp(4.5rem, 11vw, 8.5rem) clamp(3rem, 7vw, 5.5rem);
  text-align: center;
}

.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 0.55rem;
  padding: 0.38rem 0.95rem;
  border-radius: 999px;
  border: 1px solid var(--border);
  background: rgba(255, 255, 255, 0.03);
  color: var(--text-muted);
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  margin-block-end: 1.75rem;
}

.hero h1 {
  margin: 0 auto 1.25rem;
  max-inline-size: 16ch;
  font-size: clamp(2.5rem, 7vw, 4.75rem);
  font-weight: 900;
  line-height: 1.04;
  letter-spacing: -0.02em;
  background: linear-gradient(180deg, #ffffff 30%, #8e97a6 100%);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

.hero-sub {
  margin: 0 auto 2.5rem;
  max-inline-size: 56ch;
  color: var(--text-muted);
  font-size: clamp(1rem, 2vw, 1.15rem);
}

.btn-row {
  display: flex;
  justify-content: center;
  gap: 0.9rem;
  flex-wrap: wrap;
}

.btn-primary,
.btn-ghost {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  padding: 0.9rem 1.7rem;
  border-radius: 12px;
  font-size: 0.82rem;
  font-weight: 800;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  transition: transform 0.2s ease, background-color 0.2s ease, border-color 0.2s ease;
}

.btn-primary {
  background: var(--text);
  color: var(--bg);
}

.btn-primary:hover {
  transform: translateY(-1px);
  background: #e9edf3;
}

.btn-ghost {
  border: 1px solid var(--border-strong);
  color: var(--text);
  background: rgba(255, 255, 255, 0.03);
}

.btn-ghost:hover {
  border-color: var(--text);
  background: rgba(255, 255, 255, 0.07);
}

/* Sections & Cards */
.section {
  padding-block: clamp(2.75rem, 6vw, 4.75rem);
}

.section-head {
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  gap: 1rem;
  margin-block-end: 2rem;
  flex-wrap: wrap;
}

.section-label {
  font-size: 0.72rem;
  font-weight: 800;
  letter-spacing: 0.24em;
  text-transform: uppercase;
  color: var(--text-dim);
  margin-block-end: 0.45rem;
}

.section-title {
  margin: 0;
  font-size: clamp(1.5rem, 3.2vw, 2.1rem);
  font-weight: 800;
  letter-spacing: -0.01em;
}

.grid-3 {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 1.25rem;
}

.grid-2 {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 1.25rem;
}

.card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 1.75rem;
  backdrop-filter: blur(12px);
  transition: border-color 0.25s ease, transform 0.25s ease;
}

.card:hover {
  border-color: var(--border-strong);
}

.card-kicker {
  font-size: 0.68rem;
  font-weight: 800;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--text-dim);
  margin-block-end: 0.7rem;
}

.card h3 {
  margin: 0 0 0.65rem;
  font-size: 1.2rem;
  font-weight: 800;
}

.card p {
  margin: 0;
  color: var(--text-muted);
  font-size: 0.94rem;
}

/* Flagship Banner */
.flagship-card {
  position: relative;
  overflow: hidden;
  display: grid;
  grid-template-columns: 1.35fr 0.85fr;
  gap: 2rem;
  align-items: center;
  padding: clamp(1.75rem, 4vw, 3rem);
  border-radius: 24px;
  border: 1px solid var(--border-strong);
  background: linear-gradient(135deg, rgba(16, 19, 28, 0.95), rgba(8, 10, 14, 0.95));
}

@media (max-width: 780px) {
  .flagship-card {
    grid-template-columns: 1fr;
    text-align: center;
  }
}

/* Sonar Pulse Visual */
.sonar-box {
  position: relative;
  inline-size: 180px;
  block-size: 180px;
  margin-inline: auto;
  display: grid;
  place-items: center;
}

.sonar-ring {
  position: absolute;
  inset: 0;
  border-radius: 50%;
  border: 1px solid rgba(255, 255, 255, 0.28);
  animation: sonarPulse 3.4s cubic-bezier(0.2, 0.6, 0.3, 1) infinite;
}

.sonar-ring:nth-child(2) {
  animation-delay: 1.7s;
}

.sonar-core {
  inline-size: 64px;
  block-size: 64px;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.06);
  border: 1px solid rgba(255, 255, 255, 0.32);
  display: grid;
  place-items: center;
  font-weight: 900;
  font-size: 0.85rem;
  letter-spacing: 0.2em;
  box-shadow: 0 0 32px rgba(255, 255, 255, 0.14);
}

@keyframes sonarPulse {
  0% {
    transform: scale(0.38);
    opacity: 0.75;
  }
  100% {
    transform: scale(1.05);
    opacity: 0;
  }
}

@media (prefers-reduced-motion: reduce) {
  .sonar-ring {
    animation: none;
    opacity: 0.35;
  }
  html {
    scroll-behavior: auto;
  }
}

/* Prose / Legal pages */
.prose-wrap {
  max-inline-size: 760px;
  margin-inline: auto;
  padding-block: clamp(3rem, 7vw, 5rem);
}

.prose-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 22px;
  padding: clamp(1.75rem, 4vw, 2.75rem);
}

.prose-card h1 {
  margin: 0 0 0.5rem;
  font-size: clamp(1.75rem, 4vw, 2.4rem);
  font-weight: 900;
  letter-spacing: -0.01em;
}

.prose-meta {
  color: var(--text-dim);
  font-size: 0.84rem;
  margin-block-end: 2rem;
}

.prose-card h2 {
  margin: 2rem 0 0.65rem;
  font-size: 1.08rem;
  font-weight: 800;
  color: var(--text);
}

.prose-card p,
.prose-card li {
  color: var(--text-muted);
  font-size: 0.95rem;
}

.prose-card ul {
  padding-inline-start: 1.25rem;
}

.inline-link {
  color: var(--text);
  text-decoration: underline;
  text-underline-offset: 3px;
}

/* Footer */
.site-footer {
  border-block-start: 1px solid var(--border);
  padding-block: 2.25rem;
  margin-block-start: 3rem;
}

.footer-inner {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 1rem;
  flex-wrap: wrap;
  color: var(--text-dim);
  font-size: 0.82rem;
}

.footer-links {
  display: flex;
  gap: 1.25rem;
  flex-wrap: wrap;
}

.footer-links a:hover {
  color: var(--text);
}