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

body {
  font-family: "Segoe UI", sans-serif;
  line-height: 1.6;
  background: #0b0f19;
  color: #e5e7eb;
}

/* Navbar */
.navbar {
  background: #111827;
  padding: 1rem 2rem;
  display: flex;
  justify-content: space-between;
  align-items: center;
  border-bottom: 1px solid #1f2937;
}

.navbar .logo {
  font-size: 1.4rem;
  font-weight: bold;
  background: linear-gradient(90deg, #06b6d4, #3b82f6);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

.navbar ul {
  display: flex;
  list-style: none;
}

.navbar ul li {
  margin-left: 1.5rem;
}

.navbar ul li a {
  text-decoration: none;
  color: #9ca3af;
  transition: color 0.3s;
}

.navbar ul li a:hover {
  color: #3b82f6;
}

/* Hero Section */
.hero {
  text-align: center;
  padding: 5rem 2rem;
  background: linear-gradient(135deg, #0f172a, #1e3a8a);
}

.hero h1 {
  font-size: 2.5rem;
  background: linear-gradient(90deg, #06b6d4, #3b82f6);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  margin-bottom: 1rem;
}

.hero p {
  max-width: 700px;
  margin: 0 auto 2rem;
  color: #d1d5db;
}

.hero .btn {
  background: linear-gradient(90deg, #06b6d4, #3b82f6);
  color: #fff;
  padding: 0.75rem 1.5rem;
  border-radius: 30px;
  text-decoration: none;
  font-weight: bold;
  transition: opacity 0.3s;
}

.hero .btn:hover {
  opacity: 0.85;
}

/* Features */
.features {
  padding: 3rem 2rem;
  text-align: center;
  background: #0b1120;
}

.features h2 {
  margin-bottom: 2rem;
  color: #3b82f6;
}

.feature-cards {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 1.5rem;
}

.card {
  background: #1e293b;
  padding: 2rem;
  border-radius: 12px;
  width: 300px;
  text-align: left;
  transition: transform 0.3s, box-shadow 0.3s;
}

.card:hover {
  transform: translateY(-5px);
  box-shadow: 0 8px 20px rgba(0, 0, 0, 0.4);
}

.card h3 {
  margin-bottom: 0.75rem;
  color: #06b6d4;
}

/* FAQ */
.faq {
  padding: 3rem 2rem;
  background: #111827;
}

.faq h2 {
  text-align: center;
  margin-bottom: 2rem;
  color: #3b82f6;
}

details {
  margin-bottom: 1rem;
  background: #1e293b;
  padding: 1rem;
  border-radius: 8px;
  cursor: pointer;
  color: #d1d5db;
}

summary {
  font-weight: bold;
  color: #06b6d4;
}

/* Footer */
.footer {
  background: #0b0f19;
  color: #9ca3af;
  padding: 2rem;
  text-align: center;
}

.footer-columns {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
  gap: 2rem;
  margin-bottom: 2rem;
}

.footer h4 {
  color: #fff;
  margin-bottom: 1rem;
}

.footer ul {
  list-style: none;
}

.footer ul li {
  margin: 0.5rem 0;
}

.footer ul li a {
  text-decoration: none;
  color: #9ca3af;
  transition: color 0.3s;
}

.footer ul li a:hover {
  color: #3b82f6;
}