/* Reset and Body */
* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}
body {
  font-family: 'Segoe UI', sans-serif;
  background: #f8f9fa;
  color: #222;
  line-height: 1.6;
}

/* Header */
header {
  background: #111;
  padding: 20px 0;
}
nav {
  max-width: 1100px;
  margin: auto;
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 0 20px;
}
.logo {
  color: #fff;
  font-size: 1.5em;
}
.nav-links {
  list-style: none;
  display: flex;
}
.nav-links li {
  margin-left: 15px;
}
.nav-links a, .auth-btn {
  color: #fff;
  background: transparent;
  border: 1px solid #fff;
  padding: 6px 12px;
  border-radius: 5px;
  text-decoration: none;
  cursor: pointer;
}

/* Hero */
.hero {
  background: url('https://images.unsplash.com/photo-1511671782779-c97d3d27a1d4') center/cover no-repeat;
  text-align: center;
  color: #fff;
  padding: 100px 20px;
}
.hero h1 {
  font-size: 3rem;
}
.cta-button {
  background: #ff4b2b;
  color: #fff;
  padding: 12px 30px;
  border: none;
  margin-top: 20px;
  display: inline-block;
  border-radius: 4px;
  text-decoration: none;
}

/* Sections */
section {
  padding: 60px 20px;
  text-align: center;
}
.features, .testimonials, .pricing, .contact {
  max-width: 1000px;
  margin: auto;
}
.feature-cards, .testimonial-cards, .pricing-tiers {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
}
.card, .testimonial, .tier {
  background: #fff;
  margin: 10px;
  padding: 20px;
  width: 250px;
  border-radius: 8px;
  box-shadow: 0 2px 5px rgba(0,0,0,0.1);
}

/* Contact */
input[type="email"] {
  padding: 10px;
  width: 300px;
  max-width: 90%;
  margin-top: 10px;
}
button {
  padding: 10px 20px;
  background: #0077cc;
  color: white;
  border: none;
  margin-top: 10px;
  border-radius: 5px;
}

/* Footer */
footer {
  background: #111;
  color: white;
  text-align: center;
  padding: 20px;
  margin-top: 40px;
}

/* Modal */
.modal {
  display: none;
  position: fixed;
  z-index: 999;
  left: 0; top: 0;
  width: 100%; height: 100%;
  background-color: rgba(0,0,0,0.7);
  justify-content: center;
  align-items: center;
}

.modal-content {
  background-color: #fff;
  padding: 30px;
  width: 90%;
  max-width: 400px;
  border-radius: 10px;
  position: relative;
  text-align: center;
}

.close-btn {
  position: absolute;
  top: 10px; right: 15px;
  font-size: 24px;
  cursor: pointer;
}

/* Auth Form */
.auth-form input {
  width: 100%;
  padding: 10px;
  margin: 8px 0;
  border-radius: 5px;
  border: 1px solid #ccc;
}
.auth-form button {
  background: #0077cc;
  color: white;
  padding: 10px 20px;
  border: none;
  border-radius: 5px;
  cursor: pointer;
  margin-top: 10px;
}