:root {
  color-scheme: dark;
  --bg: #07110f;
  --panel: #101d1a;
  --panel-strong: #172824;
  --text: #f4fbf7;
  --muted: #a8b8b1;
  --line: rgba(255, 255, 255, 0.14);
  --accent: #54e39a;
  --accent-strong: #18b86d;
  --gold: #f4c95d;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  min-height: 100vh;
  font-family:
    Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, Segoe UI,
    sans-serif;
  background:
    radial-gradient(circle at 72% 18%, rgba(84, 227, 154, 0.2), transparent 31rem),
    linear-gradient(135deg, #07110f 0%, #0c1916 46%, #15211e 100%);
  color: var(--text);
}

a {
  color: inherit;
}

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

.topbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  min-height: 84px;
}

.brand,
.nav-login,
.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  text-decoration: none;
}

.brand {
  gap: 12px;
  font-weight: 750;
  font-size: 18px;
}

.brand-mark {
  width: 38px;
  height: 38px;
  border-radius: 8px;
  display: grid;
  place-items: center;
  background: var(--accent);
  color: #052116;
  box-shadow: 0 10px 30px rgba(84, 227, 154, 0.18);
}

.brand-mark svg {
  width: 21px;
  height: 21px;
  fill: none;
  stroke: currentColor;
  stroke-linecap: round;
  stroke-linejoin: round;
  stroke-width: 2.4;
}

.nav-login {
  min-height: 42px;
  padding: 0 18px;
  border: 1px solid var(--line);
  border-radius: 8px;
  color: var(--text);
  background: rgba(255, 255, 255, 0.06);
}

.hero {
  min-height: calc(100vh - 164px);
  display: grid;
  grid-template-columns: minmax(0, 1.08fr) minmax(320px, 0.92fr);
  gap: 52px;
  align-items: center;
  padding: 56px 0 72px;
}

.eyebrow {
  margin: 0 0 18px;
  color: var(--accent);
  font-size: 14px;
  font-weight: 750;
  letter-spacing: 0;
  text-transform: uppercase;
}

h1 {
  margin: 0;
  font-size: clamp(48px, 8vw, 96px);
  line-height: 0.95;
  letter-spacing: 0;
}

.lead {
  max-width: 650px;
  margin: 28px 0 0;
  color: var(--muted);
  font-size: 20px;
  line-height: 1.6;
}

.actions {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
  margin-top: 34px;
}

.button {
  min-height: 50px;
  padding: 0 22px;
  border-radius: 8px;
  font-weight: 750;
}

.button.primary {
  background: var(--accent);
  color: #052116;
}

.button.secondary {
  border: 1px solid var(--line);
  background: rgba(255, 255, 255, 0.06);
}

.signal-panel {
  border: 1px solid var(--line);
  border-radius: 8px;
  background:
    linear-gradient(180deg, rgba(255, 255, 255, 0.09), rgba(255, 255, 255, 0.03)),
    var(--panel);
  box-shadow: 0 24px 80px rgba(0, 0, 0, 0.35);
  overflow: hidden;
}

.panel-header {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 18px 20px;
  border-bottom: 1px solid var(--line);
  color: var(--muted);
  font-weight: 700;
}

.status-dot {
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: var(--accent);
  box-shadow: 0 0 18px var(--accent);
}

.signal-list {
  display: grid;
  gap: 1px;
  background: var(--line);
}

.signal-list article {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  min-height: 86px;
  padding: 0 22px;
  background: var(--panel-strong);
}

.signal-list span {
  color: var(--muted);
}

.signal-list strong {
  color: var(--gold);
  font-size: 18px;
}

.overview {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 18px;
  padding: 0 0 64px;
}

.overview article {
  border-top: 1px solid var(--line);
  padding-top: 22px;
}

.overview h2 {
  margin: 0 0 10px;
  font-size: 20px;
}

.overview p {
  margin: 0;
  color: var(--muted);
  line-height: 1.6;
}

@media (max-width: 820px) {
  .page-shell {
    width: min(100% - 28px, 680px);
  }

  .topbar {
    min-height: 72px;
  }

  .hero,
  .overview {
    grid-template-columns: 1fr;
  }

  .hero {
    min-height: auto;
    gap: 34px;
    padding: 42px 0 52px;
  }

  .lead {
    font-size: 18px;
  }
}

@media (max-width: 480px) {
  .brand {
    font-size: 16px;
  }

  .nav-login,
  .button {
    min-height: 46px;
  }

  .actions {
    flex-direction: column;
  }

  .button {
    width: 100%;
  }

  .signal-list article {
    align-items: flex-start;
    flex-direction: column;
    justify-content: center;
    gap: 8px;
    padding: 18px;
  }
}