:root {
  color-scheme: dark;
  --bg: #050812;
  --panel: #09111e;
  --panel-strong: #0d1828;
  --text: #f5fbff;
  --muted: rgba(245, 251, 255, 0.68);
  --line: rgba(77, 227, 255, 0.26);
  --accent: #4de3ff;
  --shield: #7cffb2;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  background:
    radial-gradient(circle at 25% 0%, rgba(77, 227, 255, 0.12), transparent 34rem),
    linear-gradient(180deg, #050812 0%, #02040a 100%);
  color: var(--text);
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont,
    "Segoe UI", sans-serif;
  line-height: 1.55;
}

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

.site-header {
  position: sticky;
  top: 0;
  z-index: 10;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  padding: 18px clamp(20px, 5vw, 72px);
  background: rgba(5, 8, 18, 0.82);
  border-bottom: 1px solid rgba(255, 255, 255, 0.08);
  backdrop-filter: blur(18px);
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  font-weight: 800;
  letter-spacing: 0.02em;
}

.brand img {
  width: 34px;
  height: 34px;
  border-radius: 9px;
}

nav {
  display: flex;
  align-items: center;
  gap: clamp(12px, 2vw, 28px);
  color: var(--muted);
  font-size: 14px;
}

nav a:hover {
  color: var(--accent);
}

main {
  width: min(1120px, calc(100% - 40px));
  margin: 0 auto;
}

.hero {
  min-height: calc(100vh - 72px);
  display: grid;
  grid-template-columns: minmax(0, 1.1fr) minmax(280px, 0.9fr);
  align-items: center;
  gap: clamp(28px, 7vw, 90px);
  padding: 58px 0 72px;
}

.hero-copy h1 {
  margin: 0;
  font-size: clamp(52px, 9vw, 106px);
  line-height: 0.92;
  letter-spacing: 0;
}

.hero-copy p {
  max-width: 620px;
  color: var(--muted);
  font-size: clamp(18px, 2.3vw, 24px);
}

.eyebrow {
  margin: 0 0 12px;
  color: var(--shield);
  font-size: 13px;
  font-weight: 800;
  letter-spacing: 0.16em;
  text-transform: uppercase;
}

.hero-actions,
.contact-panel {
  display: flex;
  align-items: center;
  gap: 14px;
  flex-wrap: wrap;
}

.primary-link,
.secondary-link {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 48px;
  padding: 0 18px;
  border-radius: 8px;
  font-weight: 800;
}

.primary-link {
  color: #001116;
  background: var(--accent);
}

.secondary-link {
  color: var(--accent);
  border: 1px solid var(--line);
}

.shield-preview {
  position: relative;
  display: grid;
  place-items: center;
  min-height: 390px;
  border: 1px solid var(--line);
  border-radius: 18px;
  background:
    radial-gradient(circle at center, rgba(77, 227, 255, 0.2), transparent 11rem),
    linear-gradient(145deg, rgba(13, 24, 40, 0.94), rgba(5, 8, 18, 0.88));
  box-shadow: 0 30px 90px rgba(0, 0, 0, 0.42);
  overflow: hidden;
}

.shield-preview::before,
.shield-preview::after {
  content: "";
  position: absolute;
  width: 270px;
  height: 270px;
  border: 1px solid rgba(124, 255, 178, 0.34);
  border-radius: 999px;
}

.shield-preview::after {
  width: 190px;
  height: 190px;
  border-color: rgba(77, 227, 255, 0.42);
}

.shield-preview img {
  width: min(190px, 48vw);
  border-radius: 36px;
  z-index: 1;
}

.status-pill {
  position: absolute;
  right: 22px;
  bottom: 22px;
  z-index: 1;
  padding: 9px 13px;
  border: 1px solid rgba(124, 255, 178, 0.38);
  border-radius: 999px;
  color: var(--shield);
  background: rgba(3, 11, 14, 0.74);
  font-weight: 800;
}

.section {
  padding: 72px 0;
  border-top: 1px solid rgba(255, 255, 255, 0.08);
}

.section-heading {
  max-width: 760px;
  margin-bottom: 26px;
}

h2 {
  margin: 0;
  font-size: clamp(32px, 5vw, 52px);
  line-height: 1.02;
  letter-spacing: 0;
}

h3 {
  margin: 0 0 10px;
  font-size: 20px;
}

.support-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 16px;
}

.support-grid article {
  min-height: 190px;
  padding: 24px;
  border: 1px solid rgba(77, 227, 255, 0.2);
  border-radius: 12px;
  background: rgba(9, 17, 30, 0.84);
}

.support-grid p,
.text-block p,
.contact-panel p {
  color: var(--muted);
}

.split {
  display: grid;
  grid-template-columns: minmax(220px, 0.8fr) minmax(0, 1.2fr);
  gap: clamp(24px, 5vw, 72px);
}

.text-block {
  padding: 24px;
  border: 1px solid rgba(255, 255, 255, 0.08);
  border-radius: 12px;
  background: rgba(9, 17, 30, 0.62);
}

.text-block p:first-child {
  margin-top: 0;
}

.text-block p:last-child {
  margin-bottom: 0;
}

.contact-panel {
  justify-content: space-between;
  padding: 36px;
  margin: 72px 0;
  border: 1px solid var(--line);
  border-radius: 16px;
  background: linear-gradient(135deg, rgba(77, 227, 255, 0.12), rgba(9, 17, 30, 0.9));
}

.contact-panel h2 {
  margin-bottom: 10px;
}

footer {
  display: flex;
  justify-content: space-between;
  gap: 20px;
  width: min(1120px, calc(100% - 40px));
  margin: 0 auto;
  padding: 30px 0 42px;
  color: rgba(245, 251, 255, 0.48);
  border-top: 1px solid rgba(255, 255, 255, 0.08);
  font-size: 14px;
}

@media (max-width: 780px) {
  .site-header {
    align-items: flex-start;
    flex-direction: column;
  }

  nav {
    width: 100%;
    overflow-x: auto;
    padding-bottom: 2px;
  }

  .hero {
    min-height: auto;
    grid-template-columns: 1fr;
    padding-top: 42px;
  }

  .shield-preview {
    min-height: 300px;
  }

  .support-grid,
  .split {
    grid-template-columns: 1fr;
  }

  .contact-panel,
  footer {
    align-items: flex-start;
    flex-direction: column;
  }
}