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

body {
  font-family: "Poppins", sans-serif;
  background-color: #f5f7fa;
  color: #222;
  line-height: 1.6;
}

/* Navbar */
header {
  position: fixed;
  width: 100%;
  top: 0;
  background-color: #0a0a23;
  z-index: 1000;
}

.navbar {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 1rem 3rem;
}

.logo {
  color: #fff;
  font-size: 1.5rem;
  font-weight: 600;
}

.nav-links {
  list-style: none;
  display: flex;
  gap: 1.5rem;
}

.nav-links a {
  text-decoration: none;
  color: #ddd;
  transition: 0.3s;
}

.nav-links a:hover {
  color: #00bcd4;
}

/* Hero Section */
.hero {
  background: linear-gradient(135deg, #0077ff, #00bcd4);
  color: #fff;
  height: 100vh;
  display: flex;
  justify-content: center;
  align-items: center;
  text-align: center;
  padding: 0 2rem;
}

.hero h2 {
  font-size: 2.5rem;
  margin-bottom: 1rem;
}

.hero p {
  max-width: 600px;
  margin: 0 auto 1.5rem;
}

.btn {
  background-color: #fff;
  color: #0077ff;
  padding: 0.75rem 1.5rem;
  border-radius: 25px;
  text-decoration: none;
  font-weight: 600;
  transition: 0.3s;
}

.btn:hover {
  background-color: #00bcd4;
  color: #fff;
}

/* Sections */
.section {
  padding: 6rem 2rem;
}

.dark {
  background-color: #0a0a23;
  color: #fff;
}

.container {
  max-width: 1000px;
  margin: 0 auto;
}

.section h2 {
  font-size: 2rem;
  margin-bottom: 1.5rem;
  text-align: center;
}

.section p,
.section ul {
  max-width: 800px;
  margin: 0 auto 1rem;
}

.section ul {
  list-style: disc;
  padding-left: 2rem;
}

/* Accordion */
.accordion {
  max-width: 800px;
  margin: 2rem auto;
}

.accordion-item {
  border-bottom: 1px solid #333;
}

.accordion-header {
  background: none;
  border: none;
  width: 100%;
  text-align: left;
  padding: 1rem;
  font-size: 1.1rem;
  font-weight: 500;
  color: #fff;
  cursor: pointer;
  transition: 0.3s;
}

.accordion-header:hover {
  color: #00bcd4;
}

.accordion-body {
  overflow: hidden;
  max-height: 0;
  transition: max-height 0.3s ease;
  background-color: #121233;
  padding: 0 1rem;
}

.accordion-body p {
  padding: 1rem 0;
  color: #ddd;
}

/* Footer */
footer {
  background-color: #0a0a23;
  color: #ccc;
  text-align: center;
  padding: 1.5rem 1rem;
  font-size: 0.9rem;
}

/* Responsive */
@media (max-width: 768px) {
  .nav-links {
    display: none;
  }

  .hero h2 {
    font-size: 2rem;
  }

  .section {
    padding: 4rem 1.5rem;
  }
}