:root {
  color-scheme: dark;
  --bg: #071018;
  --panel: #0f1d2a;
  --line: #1d3346;
  --text: #edf7ff;
  --muted: #9ab0bf;
  --blue: #2f7cff;
  --green: #54e58a;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font-family:
    Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI",
    sans-serif;
  letter-spacing: 0;
}

main {
  width: min(1120px, calc(100% - 32px));
  margin: 0 auto;
}

.hero {
  min-height: 88vh;
  display: grid;
  grid-template-columns: minmax(0, 1.3fr) minmax(280px, 0.7fr);
  align-items: center;
  gap: 40px;
  border-bottom: 1px solid var(--line);
}

.eyebrow {
  margin: 0 0 18px;
  color: var(--green);
  font-weight: 700;
  text-transform: uppercase;
  font-size: 0.78rem;
}

h1 {
  margin: 0;
  font-size: clamp(3rem, 7vw, 6.5rem);
  line-height: 0.95;
}

h2,
h3,
p {
  margin-top: 0;
}

.hero__lead {
  max-width: 700px;
  margin: 24px 0 0;
  color: var(--text);
  font-size: 1.5rem;
  line-height: 1.35;
}

.hero__sub {
  max-width: 720px;
  margin: 14px 0 0;
  color: var(--muted);
  font-size: 1.08rem;
  line-height: 1.5;
}

.hero__actions,
.links {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 32px;
}

.button,
.links a {
  color: var(--text);
  text-decoration: none;
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 12px 16px;
  font-weight: 700;
}

.button--primary {
  background: linear-gradient(135deg, var(--blue), #1ed983);
  border-color: transparent;
  color: #061018;
}

.signal-card,
.feature-grid article,
.placeholder-grid div {
  border: 1px solid var(--line);
  background: var(--panel);
  border-radius: 8px;
}

.signal-card {
  padding: 28px;
}

.signal-card__label {
  display: inline-block;
  color: var(--green);
  margin-bottom: 16px;
}

.signal-card strong {
  display: block;
  font-size: 1.5rem;
  margin-bottom: 18px;
}

.signal-card ul,
.safety ul {
  margin: 0;
  padding-left: 20px;
  color: var(--muted);
}

.section {
  padding: 72px 0 24px;
}

.section p {
  max-width: 760px;
  color: var(--muted);
  font-size: 1.1rem;
  line-height: 1.6;
}

.feature-grid,
.placeholder-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 16px;
  margin: 32px 0;
}

.feature-grid article {
  padding: 20px;
}

.feature-grid p {
  color: var(--muted);
  line-height: 1.5;
}

.placeholder-grid div {
  min-height: 180px;
  display: grid;
  place-items: center;
  color: var(--muted);
}

.dashboard-preview {
  display: grid;
  grid-template-columns: 1.25fr repeat(2, minmax(0, 0.9fr));
  gap: 16px;
  margin-top: 28px;
}

.preview-card {
  min-height: 240px;
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 22px;
  background:
    linear-gradient(145deg, rgba(47, 124, 255, 0.16), transparent 42%),
    var(--panel);
}

.preview-card--hero {
  min-height: 320px;
  background:
    linear-gradient(145deg, rgba(47, 124, 255, 0.24), transparent 45%),
    linear-gradient(30deg, rgba(84, 229, 138, 0.14), transparent 62%),
    var(--panel);
}

.preview-card span {
  display: block;
  color: var(--green);
  font-size: 0.78rem;
  font-weight: 800;
  text-transform: uppercase;
}

.preview-card strong {
  display: block;
  margin-top: 18px;
  font-size: clamp(1.35rem, 4vw, 2.4rem);
  line-height: 1.05;
}

.preview-card p {
  margin: 18px 0 0;
}

.links {
  padding: 56px 0 32px;
  border-top: 1px solid var(--line);
}

footer {
  padding: 0 0 48px;
  color: var(--muted);
}

@media (max-width: 760px) {
  .hero,
  .feature-grid,
  .placeholder-grid,
  .dashboard-preview {
    grid-template-columns: 1fr;
  }

  .hero {
    padding: 72px 0 40px;
  }
}