:root {
  --bg: #f8fafc;
  --panel: rgba(255, 255, 255, 0.88);
  --text: #1e293b;
  --muted: #64748b;
  --line: rgba(37, 99, 235, 0.14);
  --primary: #2563eb;
  --secondary: #3b82f6;
  --cta: #f97316;
  --shadow: 0 24px 48px rgba(30, 41, 59, 0.08);
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  font-family: "IBM Plex Sans", sans-serif;
  color: var(--text);
  background:
    radial-gradient(circle at top left, rgba(37, 99, 235, 0.15), transparent 26%),
    radial-gradient(circle at bottom right, rgba(249, 115, 22, 0.12), transparent 22%),
    linear-gradient(180deg, #f8fafc 0%, #eaf1fb 100%);
}

a,
button {
  cursor: pointer;
}

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

.shell {
  width: min(1180px, calc(100vw - 32px));
  margin: 0 auto;
  padding: 56px 0 72px;
}

.hero,
.signals article,
.card,
.notes article {
  background: var(--panel);
  border: 1px solid var(--line);
  box-shadow: var(--shadow);
  backdrop-filter: blur(14px);
}

.hero {
  display: grid;
  gap: 18px;
  padding: 28px;
}

.eyebrow {
  margin: 0;
  color: var(--primary);
  font: 600 0.82rem/1 "JetBrains Mono", monospace;
  letter-spacing: 0.08em;
}

.hero h1,
.section-head h2 {
  margin: 0;
}

.hero h1 {
  max-width: 13ch;
  font-size: clamp(2.4rem, 7vw, 4.8rem);
  line-height: 0.95;
}

.lede {
  margin: 0;
  max-width: 760px;
  color: var(--muted);
  font-size: 1.02rem;
  line-height: 1.7;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}

.cta,
.secondary {
  padding: 14px 18px;
  font-weight: 600;
  transition: transform 180ms ease, box-shadow 180ms ease, background-color 180ms ease;
}

.cta {
  background: var(--cta);
  color: white;
  box-shadow: 0 12px 24px rgba(249, 115, 22, 0.2);
}

.secondary {
  background: rgba(37, 99, 235, 0.08);
  color: var(--primary);
}

.cta:hover,
.secondary:hover,
.card:hover {
  transform: translateY(-2px);
}

.signals {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 14px;
  margin-top: 20px;
}

.signals article {
  padding: 18px;
}

.signals span,
.card p,
.pill,
.notes p,
.notes li {
  color: var(--muted);
}

.signals strong {
  display: block;
  margin-top: 8px;
  font: 700 2rem/1 "JetBrains Mono", monospace;
}

.section-head {
  margin: 28px 0 18px;
}

.grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 16px;
}

.card {
  display: grid;
  gap: 14px;
  padding: 20px;
  transition: transform 220ms ease, box-shadow 220ms ease;
}

.card-head {
  display: flex;
  justify-content: space-between;
  gap: 12px;
  align-items: start;
}

.card h3 {
  margin: 0;
  font-size: 1.28rem;
}

.stack {
  color: var(--primary);
  font: 600 0.82rem/1 "JetBrains Mono", monospace;
}

.card p {
  margin: 0;
  line-height: 1.65;
}

.pills {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.pill {
  padding: 6px 8px;
  background: rgba(37, 99, 235, 0.08);
  font: 500 0.82rem/1 "JetBrains Mono", monospace;
}

.card-actions {
  display: flex;
  justify-content: space-between;
  gap: 10px;
  align-items: center;
  font-weight: 600;
}

.card-link {
  color: var(--primary);
}

.card-link:hover {
  text-decoration: underline;
}

.notes {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 16px;
  margin-top: 28px;
}

.footer {
  display: flex;
  justify-content: space-between;
  gap: 16px;
  margin-top: 24px;
  color: var(--muted);
  font-size: 0.95rem;
}

.footer a {
  color: var(--primary);
}

.notes article {
  padding: 22px;
}

.notes h3 {
  margin-top: 0;
}

.notes ul {
  margin: 0;
  padding-left: 18px;
  line-height: 1.7;
}

.notes a {
  color: var(--primary);
}

.reveal {
  opacity: 0;
  transform: translateY(14px);
  transition: opacity 300ms ease, transform 300ms ease;
}

.reveal.is-visible {
  opacity: 1;
  transform: translateY(0);
}

@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }

  .cta,
  .secondary,
  .card,
  .reveal {
    transition: none;
  }
}

@media (max-width: 768px) {
  .shell {
    width: min(100vw - 20px, 1180px);
    padding-top: 28px;
  }

  .hero {
    padding: 20px;
  }

  .signals,
  .notes,
  .footer {
    grid-template-columns: 1fr;
  }

  .footer {
    display: grid;
  }
}