body {
  margin: 0;
  font-family: "Inter", Arial, sans-serif;
  background: linear-gradient(135deg, #0b0b0b, #1c0f2e);
  color: #fff;
}

.container {
  max-width: 900px;
  margin: 0 auto;
  padding: 40px 20px;
}

header {
  text-align: center;
  margin-bottom: 60px;
}

header h1 {
  font-size: 3em;
  color: #ff66b2;
  margin-bottom: 10px;
}

header p {
  font-size: 1.2em;
  color: #ccc;
}

section {
  margin-bottom: 60px;
}

h2 {
  color: #ff66b2;
  margin-bottom: 20px;
  border-bottom: 2px solid #ff66b2;
  display: inline-block;
  padding-bottom: 5px;
}

.example-card, .tariff-card {
  background: #1a0f2c;
  border-radius: 15px;
  padding: 20px;
  margin-bottom: 20px;
}

.example-card h3, .tariff-card h3 {
  margin: 0 0 10px;
  color: #ffb6e6;
}

.example-card p, .tariff-card p {
  margin: 0;
  color: #ccc;
}

form {
  background: #1a0f2c;
  padding: 20px;
  border-radius: 15px;
  box-sizing: border-box; 
}

form input, form textarea, form button {
  width: 100%;
  padding: 12px;
  margin-bottom: 15px;
  border-radius: 10px;
  border: none;
  font-size: 1em;
  box-sizing: border-box;
  box-sizing: border-box;
}

form input, form textarea {
  background: #0b0b0b;
  color: #fff;
}

form button {
  background: #ff66b2;
  color: #fff;
  font-weight: bold;
  cursor: pointer;
  transition: 0.3s;
}

form button:hover {
  background: #ff85c1;
}

.popup {
  position: fixed;
  top: 20px;
  right: 20px;
  background: green;
  color: white;
  padding: 10px;
  border-radius: 5px;
  z-index: 1000;
  opacity: 0;
  transition: opacity 0.3s ease;
}

.popup.show {
  opacity: 1;
}

@media (max-width: 768px) {
  .popup {
    top: 10px;
    right: auto;
    left: 50%;
    transform: translateX(-50%);
    width: 90%;
    max-width: 300px;
    text-align: center;
  }
}

footer {
  text-align: center;
  font-size: 0.85em;
  color: #666;
  margin-top: 40px;
  padding-bottom: 20px;
}

a {
  color: #ff66b2;
  text-decoration: none;
}

a:hover {
  text-decoration: underline;
}