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

body,
html {
  height: 100%;
  font-family: Arial, sans-serif;
}

/* Background */
.background {
  background-image: url("https://images.unsplash.com/photo-1480714378408-67cf0d13bc1b?q=80&w=2070&auto=format&fit=crop&ixlib=rb-4.0.3");
  background-size: cover;
  background-position: center;
  height: 100%;
  position: relative;
}

/* Dark overlay */
.overlay {
  background-color: rgba(0, 0, 0, 0.7);
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
}

/* Main layout container */
.container {
  position: relative;
  z-index: 1;
  height: 100%;
  display: flex;
  flex-direction: column;
  justify-content: space-between; /* top + bottom */
  align-items: center;
  text-align: center;
  padding: 20px;
}

/* Logo (top) */
.logo img {
  width: 120px;
}

/* Content (middle) */
.content {
  color: #fff;
  max-width: 700px;
}

h1 {
  font-size: 3rem;
  margin-bottom: 1rem;
  color: #ffc107;
}

p {
  font-size: 1.2rem;
  margin-bottom: 1.5rem;
}

.tagline {
  font-style: italic;
  font-size: 1rem;
  color: #f0ad4e;
}

/* Signup button (bottom) */
.signup {
  margin-bottom: 10px;
}

.signup button {
  padding: 12px 24px;
  font-size: 1rem;
  background-color: #ffc107;
  border: none;
  border-radius: 5px;
  cursor: pointer;
  transition: 0.3s ease;
}

.signup button:hover {
  background-color: #e0a800;
}

/* Responsive */
@media (max-width: 600px) {
  h1 {
    font-size: 2rem;
  }

  p {
    font-size: 1rem;
  }

  .logo img {
    width: 90px;
  }

  .signup button {
    width: 100%;
  }
}