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

body {
  font-family: Arial, sans-serif;
  background: #fefefe;
  color: #111;
  line-height: 1.6;
  padding-top: 60px;
}

/* Navigation */
.top-nav {
  position: fixed;
  top: 0;
  width: 100%;
  background: #111;
  color: #fff;
  padding: 1rem 2rem;
  display: flex;
  justify-content: space-between;
  align-items: center;
  z-index: 1000;
}

.top-nav .logo {
  color: #fff;
  text-decoration: none;
  font-weight: bold;
  font-size: 1.2rem;
}

.top-nav ul {
  list-style: none;
  display: flex;
  gap: 1rem;
  align-items: center;
}

.top-nav a {
  color: #fff;
  text-decoration: none;
  padding: 0.5rem;
  transition: color 0.3s ease;
}

.top-nav a:hover {
  color: #ddd;
}

/* Dropdown */
.dropdown {
  position: relative;
}

.dropdown .submenu {
  display: none;
  position: absolute;
  background: #222;
  padding: 0.5rem;
  top: 100%;
  left: 0;
  min-width: 150px;
}

.dropdown:hover .submenu {
  display: block;
}

.submenu a {
  display: block;
  padding: 0.5rem;
}

/* Hero */
.hero {
  padding: 5rem 2rem;
  text-align: center;
  background: #000;
  color: #fff;
}

.hero h1 {
  font-size: 3rem;
  margin-bottom: 1rem;
}

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

.btn {
  background: #fff;
  color: #000;
  padding: 0.75rem 1.5rem;
  text-decoration: none;
  border-radius: 4px;
  font-weight: bold;
}

.btn.small {
  padding: 0.5rem 1rem;
  font-size: 0.9rem;
}

/* Signup form */
.signup {
  padding: 3rem 2rem;
  text-align: center;
}

.signup input[type="email"] {
  padding: 0.5rem;
  width: 250px;
  margin-right: 1rem;
  border: 1px solid #ccc;
  border-radius: 3px;
}

.signup button {
  padding: 0.5rem 1rem;
  background: #111;
  color: #fff;
  border: none;
  cursor: pointer;
}