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

body {
  font-family: "Poppins", sans-serif;
  background: linear-gradient(180deg, #f8fbff, #eaf3ff);
  color: #222;
  line-height: 1.6;
  scroll-behavior: smooth;
}

/* Navbar */
.navbar {
  position: fixed;
  width: 100%;
  top: 0;
  left: 0;
  background: rgba(255, 255, 255, 0.8);
  backdrop-filter: blur(12px);
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 1rem 4rem;
  z-index: 1000;
  border-bottom: 1px solid #e0e0e0;
}

.logo {
  font-weight: 700;
  font-size: 1.2rem;
  color: #0077ff;
}

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

.nav-links a {
  text-decoration: none;
  color: #222;
  font-weight: 500;
  transition: color 0.3s;
}

.nav-links a:hover {
  color: #0077ff;
}

/* Hero Section */
.hero {
  text-align: center;
  padding: 9rem 2rem 6rem;
  background: linear-gradient(135deg, #0077ff, #00c6ff);
  color: white;
}

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

.hero p {
  max-width: 700px;
  margin: 0 auto 2rem;
  font-size: 1.1rem;
}

.btn {
  display: inline-block;
  padding: 0.75rem 1.5rem;
  background: white;
  color: #0077ff;
  border-radius: 50px;
  font-weight: 600;
  text-decoration: none;
  transition: 0.3s;
}

.btn:hover {
  background: #e0f0ff;
}

/* Sections */
.section {
  padding: 6rem 2rem;
  max-width: 1000px;
  margin: 0 auto;
  text-align: center;
}

.section.alt {
  background: #f4f8ff;
}

.section h2 {
  font-size: 2rem;
  color: #0077ff;
  margin-bottom: 1.5rem;
}

.section p {
  font-size: 1.05rem;
}

/* Features */
.features {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(230px, 1fr));
  gap: 1.5rem;
  margin-top: 2rem;
}

.feature-card {
  background: white;
  border-radius: 16px;
  padding: 1.5rem;
  box-shadow: 0 4px 10px rgba(0, 0, 0, 0.08);
  transition: transform 0.3s, box-shadow 0.3s;
}

.feature-card:hover {
  transform: translateY(-5px);
  box-shadow: 0 6px 15px rgba(0, 0, 0, 0.1);
}

.feature-card h3 {
  color: #0077ff;
  margin-bottom: 0.5rem;
}

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

.accordion-item {
  background: white;
  border-radius: 12px;
  margin-bottom: 1rem;
  box-shadow: 0 4px 8px rgba(0, 0, 0, 0.05);
  overflow: hidden;
  transition: 0.3s;
}

.accordion-header {
  width: 100%;
  background: #0077ff;
  color: white;
  border: none;
  padding: 1rem;
  text-align: left;
  font-size: 1rem;
  font-weight: 600;
  cursor: pointer;
}

.accordion-content {
  max-height: 0;
  overflow: hidden;
  background: #f9f9f9;
  padding: 0 1rem;
  transition: max-height 0.3s ease, padding 0.3s ease;
}

.accordion-item.active .accordion-content {
  max-height: 200px;
  padding: 1rem;
}

/* Footer */
.footer {
  text-align: center;
  padding: 2rem;
  background: #0077ff;
  color: white;
  font-size: 0.9rem;
}

/* Responsive */
@media (max-width: 768px) {
  .navbar {
    padding: 1rem 2rem;
  }

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

  .section h2 {
    font-size: 1.6rem;
  }
}