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

body {
  font-family: 'Poppins', sans-serif;
  background: #f9f9fb;
  color: #333;
  line-height: 1.6;
}

/* Navbar */
.navbar {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 1rem 3rem;
  background: #0a0a23;
  color: #fff;
  position: sticky;
  top: 0;
}

.navbar .logo { font-size: 1.5rem; font-weight: 600; }

.navbar a {
  color: #fff;
  margin-left: 1.2rem;
  text-decoration: none;
  font-weight: 500;
  transition: color 0.3s;
}

.navbar a:hover,
.navbar a.active { color: #00c6ff; }

/* Hero */
.hero {
  background: linear-gradient(135deg, #00c6ff, #0072ff);
  color: white;
  text-align: center;
  padding: 6rem 2rem;
}

.hero h1 { font-size: 2.5rem; margin-bottom: 1rem; }
.hero p { font-size: 1.2rem; margin-bottom: 2rem; }

.hero button {
  background: #fff;
  color: #0072ff;
  border: none;
  padding: 0.8rem 1.6rem;
  border-radius: 30px;
  font-weight: 600;
  cursor: pointer;
  transition: all 0.3s;
}

.hero button:hover { background: #0072ff; color: #fff; }

/* Features */
.features {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: 1.5rem;
  padding: 3rem;
}

.feature-card {
  background: #fff;
  padding: 2rem;
  border-radius: 15px;
  box-shadow: 0 3px 10px rgba(0,0,0,0.1);
  text-align: center;
  transition: transform 0.3s;
}

.feature-card:hover { transform: translateY(-5px); }

/* About */
.about {
  padding: 4rem 2rem;
  text-align: center;
  max-width: 800px;
  margin: auto;
}

/* Contact */
.contact {
  padding: 4rem 2rem;
  max-width: 800px;
  margin: auto;
  text-align: center;
}

.contact-form {
  display: flex;
  flex-direction: column;
  gap: 1rem;
  margin-top: 2rem;
}

.contact-form input,
.contact-form textarea {
  padding: 0.8rem;
  border: 1px solid #ccc;
  border-radius: 10px;
  font-size: 1rem;
  width: 100%;
}

.contact-form button {
  background: #0072ff;
  color: white;
  border: none;
  padding: 0.8rem;
  border-radius: 10px;
  cursor: pointer;
  font-weight: 600;
  transition: background 0.3s;
}

.contact-form button:hover { background: #005fcc; }

.hidden { display: none; }

/* Footer */
footer {
  background: #0a0a23;
  color: white;
  text-align: center;
  padding: 1rem;
  margin-top: 2rem;
}