:root {
  --bg: #f3f6fb;
  --surface: #ffffff;
  --ink: #18202a;
  --muted: #5a6878;
  --primary: #0f62fe;
  --border: #d7e0ea;
  --warn-bg: #fff8e7;
  --warn-ink: #7a5b00;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  font-family: "Segoe UI", "Helvetica Neue", Arial, sans-serif;
  background: radial-gradient(circle at 0% 0%, #dde9ff 0, transparent 35%), var(--bg);
  color: var(--ink);
  line-height: 1.55;
}

.container {
  width: min(920px, 92vw);
  margin: 2.5rem auto 3rem;
  display: grid;
  gap: 1rem;
}

.hero {
  background: linear-gradient(120deg, #0f62fe, #0f8aef);
  color: #fff;
  border-radius: 18px;
  padding: 1.5rem 1.4rem;
  box-shadow: 0 10px 26px rgba(17, 41, 88, 0.22);
}

.hero h1 {
  margin: 0.2rem 0 0.5rem;
  font-size: clamp(1.8rem, 2.8vw, 2.5rem);
}

.eyebrow {
  margin: 0;
  opacity: 0.9;
  font-weight: 700;
  letter-spacing: 0.03em;
  text-transform: uppercase;
  font-size: 0.82rem;
}

.subtitle {
  margin: 0;
  opacity: 0.95;
}

.card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 14px;
  padding: 1rem 1rem 0.9rem;
}

h2 {
  margin-top: 0;
  font-size: 1.25rem;
}

h3 {
  margin-bottom: 0.4rem;
  margin-top: 0.9rem;
  font-size: 1.02rem;
}

p,
li {
  color: var(--ink);
}

ul {
  margin-top: 0.45rem;
  padding-left: 1.15rem;
}

a {
  color: var(--primary);
  text-decoration: none;
  font-weight: 600;
}

a:hover {
  text-decoration: underline;
}

.warning {
  background: var(--warn-bg);
  color: var(--warn-ink);
  border: 1px solid #f3df9d;
  border-radius: 10px;
  padding: 0.7rem 0.8rem;
}

@media (max-width: 640px) {
  .container {
    margin-top: 1rem;
    margin-bottom: 1.8rem;
  }

  .hero,
  .card {
    border-radius: 12px;
  }
}