:root {
  --navy: #0f2a4a;
  --navy-dark: #0a1c33;
  --accent: #2d7dd2;
  --bg: #f5f8fc;
  --text: #1a2433;
  --muted: #5a6472;
  --card: #ffffff;
}

* { margin: 0; padding: 0; box-sizing: border-box; }

body {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  color: var(--text);
  background: var(--bg);
  line-height: 1.6;
}

a { color: var(--accent); text-decoration: none; }
a:hover { text-decoration: underline; }

.container { max-width: 980px; margin: 0 auto; padding: 0 20px; }

/* Header */
header {
  background: var(--navy);
  color: #fff;
  padding: 28px 0;
  text-align: center;
}
header .brand {
  font-size: 1.05rem;
  font-weight: 600;
  letter-spacing: .5px;
  color: #cfe0f5;
}

/* Hero */
.hero {
  background: linear-gradient(180deg, var(--navy) 0%, #16406e 100%);
  color: #fff;
  text-align: center;
  padding: 72px 0 64px;
}
.hero h1 {
  font-size: 2.6rem;
  letter-spacing: .3px;
  margin-bottom: 12px;
}
.hero .subtitle {
  font-size: 1.2rem;
  color: #c9daf2;
  max-width: 640px;
  margin: 0 auto;
}

/* Features */
.features {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 20px;
  padding: 56px 0;
}
.feature {
  background: var(--card);
  border-radius: 16px;
  padding: 28px;
  box-shadow: 0 2px 10px rgba(15,42,74,.08);
  text-align: center;
}
.feature .icon {
  font-size: 2.2rem;
  margin-bottom: 14px;
}
.feature h2 {
  font-size: 1.15rem;
  color: var(--navy);
  margin-bottom: 10px;
}
.feature p {
  color: var(--muted);
  font-size: .95rem;
}

/* Footer */
footer {
  background: var(--navy-dark);
  color: #9fb0d8;
  text-align: center;
  padding: 26px 0;
  font-size: .9rem;
}