:root {
  --navy: #11183B;
  --blue: #3C63F3;
  --cream: #FFF0C7;
  --gold: #C98312;
  --light-gold: #F4C453;
  --white: #FFFFFF;
  --text: #20243D;
  --muted: #686D83;
  --border: rgba(17, 24, 59, 0.12);
  --shadow: 0 20px 60px rgba(17, 24, 59, 0.12);
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  margin: 0;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  color: var(--text);
  background:
    radial-gradient(circle at top right, rgba(60,99,243,0.12), transparent 30rem),
    linear-gradient(180deg, #fffdf7 0%, #fff8e7 100%);
  line-height: 1.65;
}

a { color: var(--blue); }
a:hover { opacity: 0.8; }

.site-header {
  position: sticky;
  top: 0;
  z-index: 10;
  backdrop-filter: blur(16px);
  background: rgba(255, 253, 247, 0.86);
  border-bottom: 1px solid var(--border);
}

.nav {
  max-width: 980px;
  margin: 0 auto;
  padding: 16px 22px;
  display: flex;
  gap: 18px;
  align-items: center;
  justify-content: space-between;
}

.brand {
  color: var(--navy);
  font-family: Georgia, "Times New Roman", serif;
  font-weight: 700;
  font-size: 1.12rem;
  text-decoration: none;
}

.nav-links {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
  font-size: 0.95rem;
}

.nav-links a {
  color: var(--navy);
  text-decoration: none;
  font-weight: 600;
}

.container {
  max-width: 860px;
  margin: 0 auto;
  padding: 54px 22px 80px;
}

.hero {
  background: var(--navy);
  color: var(--white);
  padding: 46px 40px;
  border-radius: 28px;
  box-shadow: var(--shadow);
  margin-bottom: 30px;
  overflow: hidden;
  position: relative;
}

.hero::after {
  content: "";
  width: 230px;
  height: 230px;
  border-radius: 50%;
  position: absolute;
  right: -60px;
  top: -80px;
  background: rgba(244, 196, 83, 0.16);
}

.hero h1 {
  margin: 0 0 12px;
  font-family: Georgia, "Times New Roman", serif;
  font-size: clamp(2rem, 6vw, 3.6rem);
  line-height: 1.08;
  max-width: 700px;
}

.hero .accent { color: var(--light-gold); }

.hero p {
  color: rgba(255,255,255,0.82);
  max-width: 650px;
  font-size: 1.05rem;
  margin-bottom: 0;
}

.card {
  background: rgba(255,255,255,0.92);
  border: 1px solid var(--border);
  border-radius: 22px;
  padding: 28px;
  margin: 20px 0;
  box-shadow: 0 12px 35px rgba(17,24,59,0.07);
}

h2, h3 {
  color: var(--navy);
  font-family: Georgia, "Times New Roman", serif;
  line-height: 1.25;
}

h2 {
  margin-top: 42px;
  font-size: 1.7rem;
}

h3 { margin-top: 28px; }

ul, ol { padding-left: 1.35rem; }

.notice {
  background: var(--cream);
  border-left: 5px solid var(--gold);
  border-radius: 14px;
  padding: 18px 20px;
  margin: 24px 0;
}

.button {
  display: inline-block;
  background: var(--light-gold);
  color: var(--navy);
  font-weight: 800;
  text-decoration: none;
  border-radius: 999px;
  padding: 13px 20px;
  margin: 6px 8px 6px 0;
}

.grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 16px;
  margin-top: 22px;
}

.grid .card { margin: 0; }

.small {
  color: var(--muted);
  font-size: 0.93rem;
}

footer {
  border-top: 1px solid var(--border);
  color: var(--muted);
  font-size: 0.9rem;
  padding: 28px 22px 44px;
  text-align: center;
}

code {
  background: rgba(17,24,59,0.06);
  border-radius: 6px;
  padding: 2px 6px;
}

@media (max-width: 720px) {
  .nav { align-items: flex-start; }
  .nav-links { justify-content: flex-end; }
  .hero { padding: 34px 24px; border-radius: 22px; }
  .grid { grid-template-columns: 1fr; }
}