/* Reset & base */
* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

body {
  font-family: 'Segoe UI', sans-serif;
  background-color: #0c0c0c;
  color: #f0f0f0;
  line-height: 1.6;
}

a {
  color: inherit;
  text-decoration: none;
}

header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 20px 40px;
  background-color: #111;
  border-bottom: 1px solid #333;
}

.logo {
  font-size: 1.5rem;
  font-weight: bold;
  color: #00ffe7;
}

nav a {
  margin-left: 20px;
  font-weight: 500;
  transition: color 0.3s;
}

nav a:hover {
  color: #00ffe7;
}

.hero {
  padding: 100px 40px 60px;
  text-align: center;
}

.hero h1 {
  font-size: 3rem;
  margin-bottom: 20px;
  color: #00ffe7;
}

.hero p {
  font-size: 1.2rem;
  max-width: 600px;
  margin: 0 auto 40px;
}

.buttons {
  display: flex;
  justify-content: center;
  gap: 20px;
}

.btn {
  padding: 12px 24px;
  background-color: #00ffe7;
  color: #000;
  font-weight: bold;
  border-radius: 5px;
  transition: background 0.3s;
}

.btn:hover {
  background-color: #00ccb8;
}

.btn.secondary {
  background-color: transparent;
  border: 2px solid #00ffe7;
  color: #00ffe7;
}

.btn.secondary:hover {
  background-color: #00ffe7;
  color: #000;
}

.demo-info {
  padding: 60px 40px;
  background-color: #111;
}

.demo-info h2 {
  font-size: 2rem;
  margin-bottom: 20px;
  color: #00ffe7;
}

.demo-info p {
  max-width: 700px;
  margin-bottom: 20px;
}

.demo-info ul {
  list-style: none;
  padding-left: 0;
}

.demo-info li {
  margin-bottom: 10px;
  position: relative;
  padding-left: 25px;
}

.demo-info li::before {
  content: '✔';
  color: #00ffe7;
  position: absolute;
  left: 0;
}

footer {
  text-align: center;
  padding: 20px 0;
  background-color: #0a0a0a;
  border-top: 1px solid #333;
  font-size: 0.9rem;
  color: #666;
}