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

/* Global Styles */
body {
  font-family: 'Segoe UI', sans-serif;
  line-height: 1.6;
  color: #222;
  background-color: #fff;
}

/* Header */
header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 20px 40px;
  background: rgba(255, 255, 255, 0.95);
  position: fixed;
  width: 100%;
  top: 0;
  z-index: 1000;
  box-shadow: 0 2px 4px rgba(0,0,0,0.1);
}

header .logo {
  height: 40px;
}

header nav a {
  margin-left: 20px;
  text-decoration: none;
  color: #111;
  font-weight: 500;
  transition: color 0.3s;
}

header nav a:hover {
  color: #1976d2;
}

/* Hero Section */
.hero {
  background: url('../images/background.jpg') no-repeat center center/cover;
  height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  text-align: center;
  padding: 60px 20px 20px;
  color: white;
  position: relative;
}

.hero::after {
  content: '';
  position: absolute;
  top: 0; left: 0; right: 0; bottom: 0;
  background-color: rgba(0, 0, 0, 0.5);
}

.hero-content {
  position: relative;
  z-index: 10;
  max-width: 700px;
}

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

.hero p {
  font-size: 1.2rem;
  margin-bottom: 30px;
}

.cta-button {
  padding: 12px 28px;
  font-size: 1rem;
  background-color: #1976d2;
  color: white;
  border: none;
  border-radius: 8px;
  text-decoration: none;
  transition: background-color 0.3s;
}

.cta-button:hover {
  background-color: #125ca1;
}

/* Features Section */
.features {
  padding: 80px 20px;
  background-color: #f5f5f5;
  text-align: center;
}

.features h2 {
  font-size: 2rem;
  margin-bottom: 20px;
}

.features p {
  max-width: 800px;
  margin: 0 auto 40px;
  font-size: 1.1rem;
}

.demo-image {
  max-width: 100%;
  height: auto;
  border-radius: 12px;
  box-shadow: 0 4px 12px rgba(0,0,0,0.1);
}

/* Footer */
footer {
  padding: 30px 20px;
  background-color: #222;
  color: #ddd;
  text-align: center;
  font-size: 0.9rem;
}

/* Responsive */
@media screen and (max-width: 768px) {
  header {
    flex-direction: column;
    align-items: flex-start;
  }

  header nav {
    margin-top: 10px;
  }

  .hero h1 {
    font-size: 2rem;
  }

  .hero p {
    font-size: 1rem;
  }
}