:root {
  --bg-1: #08141b;
  --bg-2: #0f2430;
  --bg-3: #153849;
  --line: #2f586a;
  --ink: #e8f2f6;
  --muted: #9eb8c4;
  --accent: #82e5b3;
  --accent-2: #6bc3ff;
  --card: rgba(11, 35, 46, 0.78);
  --radar-glow: rgba(130, 229, 179, 0.26);
}

* {
  box-sizing: border-box;
}

html,
body {
  margin: 0;
  padding: 0;
}

body {
  min-height: 100vh;
  font-family: "Space Grotesk", "Segoe UI", sans-serif;
  color: var(--ink);
  background: radial-gradient(circle at 15% 8%, #1d4659 0%, transparent 35%),
    radial-gradient(circle at 82% 14%, #14394a 0%, transparent 38%),
    linear-gradient(170deg, var(--bg-1) 0%, var(--bg-2) 45%, var(--bg-3) 100%);
  line-height: 1.5;
}

.page-bg {
  position: fixed;
  inset: 0;
  pointer-events: none;
  background-image: linear-gradient(rgba(107, 195, 255, 0.08) 1px, transparent 1px),
    linear-gradient(90deg, rgba(107, 195, 255, 0.08) 1px, transparent 1px);
  background-size: 44px 44px;
  mask-image: radial-gradient(circle at 50% 20%, black 45%, transparent 85%);
}

.topbar,
main,
.footer {
  width: min(1080px, 92vw);
  margin: 0 auto;
}

.topbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 1.25rem 0 0.6rem;
}

.brand {
  display: flex;
  align-items: center;
  gap: 0.85rem;
}

.brand-mark {
  width: 2.25rem;
  height: 2.25rem;
  border: 1px solid var(--accent-2);
  border-radius: 6px;
  display: grid;
  place-items: center;
  font-family: "IBM Plex Mono", monospace;
  color: var(--accent);
  font-weight: 500;
}

.brand-title {
  margin: 0;
  font-weight: 700;
  letter-spacing: 0.02em;
}

.brand-sub {
  margin: 0;
  color: var(--muted);
  font-size: 0.82rem;
}

.top-link {
  color: var(--accent-2);
  text-decoration: none;
  border-bottom: 1px solid transparent;
  font-size: 0.92rem;
}

.top-link:hover {
  border-bottom-color: var(--accent-2);
}

.hero {
  position: relative;
  isolation: isolate;
  overflow: hidden;
  padding: 5.6rem 0 2.6rem;
  animation: rise 560ms ease-out both;
}

.hero-content {
  position: relative;
  z-index: 2;
  max-width: 65ch;
}

.hero-radar {
  position: absolute;
  top: -6rem;
  right: -8rem;
  width: min(58vw, 620px);
  aspect-ratio: 1 / 1;
  border-radius: 50%;
  opacity: 0.95;
  z-index: 1;
  filter: drop-shadow(0 0 24px var(--radar-glow));
  pointer-events: none;
}

#radar-canvas {
  width: 100%;
  height: 100%;
  display: block;
}

.eyebrow {
  margin: 0 0 0.7rem;
  color: var(--accent);
  font-family: "IBM Plex Mono", monospace;
  font-size: 0.84rem;
  text-transform: uppercase;
  letter-spacing: 0.08em;
}

.hero h1 {
  margin: 0;
  font-size: clamp(2.05rem, 6.2vw, 4rem);
  line-height: 1.06;
  max-width: 15ch;
}

.hero-copy {
  max-width: 62ch;
  color: var(--muted);
  margin: 1rem 0 1.6rem;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.8rem;
  margin-bottom: 1.6rem;
}

.btn {
  text-decoration: none;
  font-weight: 500;
  border-radius: 999px;
  padding: 0.68rem 1rem;
  font-size: 0.92rem;
  transition: transform 160ms ease, box-shadow 160ms ease;
}

.btn:hover {
  transform: translateY(-2px);
}

.btn-primary {
  background: linear-gradient(120deg, var(--accent) 0%, #6bf0dc 100%);
  color: #032113;
  box-shadow: 0 8px 24px rgba(130, 229, 179, 0.22);
}

.btn-ghost {
  border: 1px solid var(--line);
  color: var(--ink);
  background: rgba(10, 29, 39, 0.4);
}

.hero-metrics {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  flex-wrap: wrap;
  gap: 1.2rem;
  color: var(--muted);
  font-size: 0.9rem;
}

.hero-metrics span {
  color: var(--accent-2);
  font-family: "IBM Plex Mono", monospace;
  margin-right: 0.25rem;
}

.panel {
  border: 1px solid var(--line);
  background: var(--card);
  backdrop-filter: blur(5px);
  border-radius: 16px;
  padding: 1.45rem;
  margin: 1rem 0;
  animation: rise 620ms ease-out both;
}

.panel h2 {
  margin: 0 0 0.75rem;
  font-size: clamp(1.35rem, 2.9vw, 2.1rem);
}

.panel p {
  margin: 0;
  color: var(--muted);
}

.grid {
  display: grid;
  gap: 0.9rem;
}

.grid.three {
  grid-template-columns: repeat(3, minmax(0, 1fr));
}

.grid.two {
  grid-template-columns: repeat(2, minmax(0, 1fr));
}

.card {
  border: 1px solid rgba(95, 148, 168, 0.5);
  border-radius: 12px;
  background: rgba(8, 29, 38, 0.72);
  padding: 1rem;
}

.card h3 {
  margin: 0 0 0.35rem;
  font-size: 1.02rem;
}

.card p {
  margin: 0;
  color: var(--muted);
  font-size: 0.95rem;
}

.card.accent {
  border-color: rgba(130, 229, 179, 0.6);
  background: rgba(13, 43, 47, 0.76);
}

.split {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1rem;
  align-items: center;
}

.code {
  border: 1px solid rgba(107, 195, 255, 0.4);
  border-radius: 10px;
  background: #07171f;
  overflow: auto;
}

.code pre {
  margin: 0;
  padding: 1rem;
}

.code code {
  color: #a9dff7;
  font-family: "IBM Plex Mono", monospace;
  font-size: 0.83rem;
  line-height: 1.55;
}

.cta {
  text-align: center;
  margin: 1.35rem 0 1.6rem;
  border: 1px solid var(--line);
  background: linear-gradient(160deg, rgba(9, 33, 43, 0.9) 0%, rgba(7, 22, 31, 0.92) 100%);
  border-radius: 16px;
  padding: 1.8rem 1rem;
  animation: rise 700ms ease-out both;
}

.cta h2 {
  margin: 0;
  font-size: clamp(1.5rem, 3.4vw, 2.5rem);
}

.cta p {
  margin: 0.55rem auto 1rem;
  max-width: 60ch;
  color: var(--muted);
}

.footer {
  padding: 0.4rem 0 1.6rem;
}

.footer p {
  margin: 0;
  color: #8ca7b4;
  font-size: 0.85rem;
}

@keyframes rise {
  from {
    opacity: 0;
    transform: translateY(14px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@media (max-width: 940px) {
  .grid.three,
  .grid.two,
  .split {
    grid-template-columns: 1fr;
  }

  .hero {
    padding-top: 3.8rem;
  }

  .hero-radar {
    width: min(88vw, 560px);
    right: -10rem;
    top: -4rem;
    opacity: 0.7;
  }
}

@media (max-width: 540px) {
  .topbar {
    flex-direction: column;
    align-items: flex-start;
    gap: 0.5rem;
  }

  .hero h1 {
    font-size: clamp(1.85rem, 10vw, 2.4rem);
  }

  .hero-radar {
    right: -9rem;
    top: -2.2rem;
    opacity: 0.6;
  }

  .panel,
  .cta {
    padding: 1.1rem;
  }
}