:root {
  color-scheme: dark;
  --background: #090d16;
  --surface: rgba(21, 28, 43, 0.68);
  --surface-strong: #151c2b;
  --text: #f5f7fb;
  --muted: #a7b0c2;
  --line: rgba(193, 205, 228, 0.14);
  --accent: #82aaff;
  --accent-bright: #b9ccff;
  --focus: #f4d35e;
  --max-width: 1180px;
  font-family: Inter, ui-sans-serif, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  font-synthesis: none;
}

* {
  box-sizing: border-box;
}

html {
  min-width: 320px;
  background: var(--background);
}

body {
  min-height: 100vh;
  margin: 0;
  color: var(--text);
  background:
    radial-gradient(circle at 78% 22%, rgba(90, 125, 220, 0.18), transparent 31rem),
    radial-gradient(circle at 14% 78%, rgba(82, 105, 171, 0.12), transparent 27rem),
    var(--background);
}

body::before {
  position: fixed;
  inset: 0;
  z-index: -1;
  background-image:
    linear-gradient(var(--line) 1px, transparent 1px),
    linear-gradient(90deg, var(--line) 1px, transparent 1px);
  background-size: 72px 72px;
  content: "";
  opacity: 0.22;
  mask-image: linear-gradient(to bottom, black, transparent 82%);
}

a {
  color: inherit;
}

a:focus-visible {
  outline: 3px solid var(--focus);
  outline-offset: 4px;
}

.page-shell {
  display: flex;
  width: min(100% - 40px, var(--max-width));
  min-height: 100vh;
  margin: 0 auto;
  flex-direction: column;
}

.site-header {
  display: flex;
  min-height: 96px;
  align-items: center;
  justify-content: space-between;
  border-bottom: 1px solid var(--line);
}

.brand,
.header-link,
.button {
  display: inline-flex;
  align-items: center;
  text-decoration: none;
}

.brand {
  min-height: 48px;
  gap: 12px;
  font-size: 0.96rem;
  font-weight: 690;
  letter-spacing: -0.02em;
}

.brand-mark {
  display: block;
  width: 34px;
  height: 34px;
  flex: 0 0 auto;
}

.brand-mark img {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: contain;
}

.header-link {
  min-height: 48px;
  gap: 8px;
  color: var(--muted);
  font-size: 0.92rem;
  font-weight: 620;
  transition: color 160ms ease;
}

.header-link:hover {
  color: var(--text);
}

main {
  display: grid;
  flex: 1;
  align-items: center;
}

.hero {
  display: grid;
  padding: clamp(64px, 10vw, 128px) 0;
  align-items: center;
  gap: clamp(54px, 9vw, 112px);
  grid-template-columns: minmax(0, 1.25fr) minmax(300px, 0.75fr);
}

.eyebrow {
  margin: 0 0 24px;
  color: var(--accent-bright);
  font-size: 0.74rem;
  font-weight: 760;
  letter-spacing: 0.14em;
  text-transform: uppercase;
}

h1 {
  max-width: 800px;
  margin: 0;
  font-size: clamp(3.25rem, 7.5vw, 6.75rem);
  font-weight: 740;
  letter-spacing: -0.065em;
  line-height: 0.92;
}

h1 span {
  color: var(--muted);
}

.intro {
  max-width: 620px;
  margin: 34px 0 0;
  color: var(--muted);
  font-size: clamp(1.03rem, 1.6vw, 1.2rem);
  line-height: 1.7;
}

.hero-actions {
  display: flex;
  margin-top: 42px;
  align-items: center;
  gap: 22px;
  flex-wrap: wrap;
}

.button {
  min-height: 52px;
  padding: 0 22px;
  justify-content: center;
  gap: 12px;
  border: 1px solid transparent;
  border-radius: 12px;
  font-size: 0.94rem;
  font-weight: 720;
  transition: transform 160ms ease, background 160ms ease, border-color 160ms ease;
}

.button-primary {
  color: #09101f;
  background: var(--text);
}

.button-primary:hover {
  background: var(--accent-bright);
  transform: translateY(-2px);
}

.access-note {
  max-width: 215px;
  margin: 0;
  color: #7f899d;
  font-size: 0.76rem;
  line-height: 1.45;
}

.signal-card {
  position: relative;
  overflow: hidden;
  padding: 30px;
  border: 1px solid var(--line);
  border-radius: 22px;
  background: linear-gradient(150deg, rgba(26, 35, 55, 0.92), rgba(13, 18, 30, 0.8));
  box-shadow: 0 28px 80px rgba(0, 0, 0, 0.32);
}

.signal-card::after {
  position: absolute;
  top: -120px;
  right: -105px;
  width: 250px;
  height: 250px;
  border: 1px solid rgba(130, 170, 255, 0.2);
  border-radius: 50%;
  box-shadow: 0 0 80px rgba(130, 170, 255, 0.13);
  content: "";
}

.signal-topline {
  display: flex;
  align-items: center;
  gap: 10px;
  color: var(--muted);
  font-size: 0.76rem;
  font-weight: 650;
  letter-spacing: 0.06em;
  text-transform: uppercase;
}

.status-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: #83dfb0;
  box-shadow: 0 0 18px rgba(131, 223, 176, 0.72);
}

.signal-title {
  margin: 44px 0 56px;
  font-size: clamp(1.8rem, 3vw, 2.65rem);
  font-weight: 660;
  letter-spacing: -0.045em;
  line-height: 1.05;
}

.signal-list {
  padding: 0;
  margin: 0;
  list-style: none;
}

.signal-list li {
  display: grid;
  min-height: 52px;
  border-top: 1px solid var(--line);
  align-items: center;
  color: #d9dfeb;
  font-size: 0.9rem;
  grid-template-columns: 42px 1fr;
}

.signal-list span {
  color: #69758b;
  font-size: 0.68rem;
  font-variant-numeric: tabular-nums;
}

.site-footer {
  display: flex;
  min-height: 88px;
  padding: 22px 0;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  border-top: 1px solid var(--line);
  color: #727d91;
  font-size: 0.75rem;
  line-height: 1.5;
}

.site-footer p {
  margin: 0;
}

@media (max-width: 820px) {
  .hero {
    padding: 72px 0;
    grid-template-columns: 1fr;
  }

  .signal-card {
    max-width: 560px;
  }
}

@media (max-width: 560px) {
  .page-shell {
    width: min(100% - 28px, var(--max-width));
  }

  .site-header {
    min-height: 78px;
  }

  .brand {
    font-size: 0.88rem;
  }

  .hero {
    padding: 56px 0 64px;
    gap: 44px;
  }

  h1 {
    font-size: clamp(3.1rem, 16vw, 4.7rem);
  }

  .intro {
    margin-top: 26px;
  }

  .hero-actions {
    margin-top: 32px;
    align-items: flex-start;
    flex-direction: column;
  }

  .button {
    width: 100%;
  }

  .access-note {
    max-width: none;
  }

  .signal-card {
    padding: 24px;
    border-radius: 18px;
  }

  .signal-title {
    margin: 38px 0 44px;
  }

  .site-footer {
    align-items: flex-start;
    flex-direction: column;
    justify-content: center;
  }
}

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