* {
  box-sizing: border-box;
}

html {
  font-family: system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  background: #f3f6fb;
  color: #172033;
}

body {
  margin: 0;
}

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

.site-header {
  background: linear-gradient(135deg, #0f172a, #1d4ed8);
  color: #fff;
  padding: 72px 0;
}

.eyebrow {
  margin: 0 0 12px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  font-size: 13px;
  opacity: 0.85;
}

h1 {
  margin: 0;
  font-size: clamp(36px, 6vw, 64px);
  line-height: 1.05;
}

.subtitle {
  max-width: 720px;
  margin: 20px 0 0;
  font-size: 20px;
  line-height: 1.7;
  opacity: 0.9;
}

.hero {
  display: grid;
  grid-template-columns: 1fr 1.1fr;
  gap: 32px;
  align-items: center;
  padding: 56px 0 32px;
}

.hero-text,
.card,
.info-panel {
  background: #fff;
  border: 1px solid #e5e7eb;
  border-radius: 24px;
  box-shadow: 0 16px 40px rgba(15, 23, 42, 0.08);
}

.hero-text {
  padding: 32px;
}

.hero-text h2,
.info-panel h2 {
  margin: 0 0 16px;
  font-size: 30px;
}

.hero-text p,
.card p,
.info-panel p {
  color: #475569;
  line-height: 1.8;
}

.check-list {
  padding-left: 20px;
  color: #334155;
  line-height: 1.9;
}

.hero-image img,
.card img {
  width: 100%;
  height: auto;
  display: block;
  border-radius: 24px;
}

.grid-section {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 22px;
  padding: 32px 0;
}

.card {
  overflow: hidden;
}

.card h3,
.card p {
  padding-left: 22px;
  padding-right: 22px;
}

.card h3 {
  margin: 22px 0 8px;
  font-size: 22px;
}

.card p {
  margin-bottom: 24px;
}

.static-box {
  height: 220px;
  display: grid;
  place-items: center;
  background: linear-gradient(135deg, #dbeafe, #bfdbfe);
}

.static-box span {
  font-size: 42px;
  font-weight: 800;
  letter-spacing: 0.18em;
  color: #1e3a8a;
}

.info-panel {
  padding: 32px;
  margin: 32px auto 56px;
}

pre {
  background: #0f172a;
  color: #d1fae5;
  padding: 20px;
  border-radius: 16px;
  overflow-x: auto;
}

.site-footer {
  padding: 28px 0;
  background: #0f172a;
  color: #cbd5e1;
  text-align: center;
}

.js-ready .static-box {
  outline: 4px solid #22c55e;
  outline-offset: -4px;
}

@media (max-width: 860px) {
  .hero,
  .grid-section {
    grid-template-columns: 1fr;
  }
}