body {
  background: linear-gradient(120deg, #232946 0%, #3399ff 100%);
  min-height: 100vh;
  font-family: 'Segoe UI', 'Arial', sans-serif;
  margin: 0;
  animation: fadeInBody 1.2s;
}
@keyframes fadeInBody {
  from { opacity: 0; }
  to { opacity: 1; }
}
.hero.card {
  box-shadow: 0 4px 24px #0003;
  margin-bottom: 2em;
  animation: fadeInHero 1.2s;
}
@keyframes fadeInHero {
  from { opacity: 0; transform: translateY(30px); }
  to { opacity: 1; transform: none; }
}
.accent {
  font-size: 2.5em;
  color: #3399ff;
  letter-spacing: 1px;
  font-weight: 700;
  margin-bottom: 0.3em;
}
.divider {
  width: 60px;
  height: 4px;
  background: linear-gradient(90deg,#3399ff 0%,#6ab 100%);
  border-radius: 2px;
  margin: 2em auto 2em auto;
}
footer {
  background: #232946;
  color: #fff;
  font-size: 0.95em;
  padding: 1.2em 0 0.7em 0;
  margin-top: 3em;
  border-radius: 1em 1em 0 0;
  box-shadow: 0 -2px 12px #0002;
  text-align: center;
}
@import url('https://fonts.googleapis.com/css2?family=Open+Sans&display=swap');
body {
  font-family: 'Open Sans', sans-serif;
  max-width: 900px;
  margin: 50px auto;
  padding: 0 20px;
  line-height: 1.8;
  color: #ddd;
  background: #1e1e1e;
  transition: background 0.4s, color 0.4s;
}
h1, h2 {
  color: #9cf;
}
nav {
  background: #2c2c2c;
  position: sticky;
  top: 0;
  z-index: 100;
  box-shadow: 0 2px 12px #0002;
  border-bottom: 3px solid #3399ff;
  padding: 15px;
  text-align: center;
  transition: all 0.3s;
  max-width: 900px;
  margin: 0 auto 40px auto;
}
nav a {
  margin: 0 15px;
  padding: 8px 5px;
  text-decoration: none;
  color: #9cf;
  font-weight: bold;
  border-bottom: 2px solid transparent;
  transition: border-bottom 0.2s, color 0.2s;
}
nav a:hover {
  color: #6ab;
  text-shadow: 0 1px 2px rgba(0,0,0,0.4);
  border-bottom: 2px solid #6ab;
}
nav a.active {
  border-bottom: 2px solid #6ab;
  color: #6ab;
}
.hero {
  background: #2c2c2c;
  padding: 30px;
  text-align: center;
  border-radius: 8px;
  margin-bottom: 40px;
  animation: fadein 1.2s ease;
  box-shadow: 0 4px 12px rgba(0,0,0,0.3);
}
section {
  margin-bottom: 40px;
}
footer {
  margin-top: 60px;
  font-size: 0.9em;
  color: #aaa;
  text-align: center;
  border-top: 1px solid #444;
  padding-top: 20px;
}
ul {
  padding-left: 25px;
}
@keyframes fadein {
  from { opacity: 0; }
  to { opacity: 1; }
}