:root {
  --brand: #25D366;
  --brand-dark: #128C7E;
  --bg1: #667eea;
  --bg2: #764ba2;
}

html, body {
  margin: 0;
  font-family: "Segoe UI", Tahoma, Geneva, Verdana, sans-serif;
  background: linear-gradient(135deg, var(--bg1) 0%, var(--bg2) 100%);
  color: #fff;
}

.container {
  display: flex;
  flex-direction: column;
  justify-content: flex-start;
  align-items: center;
  text-align: center;
}

h1 {
  font-size: 2.3em;
  margin-bottom: 20px;
}
h2{
    font-size: 1.5em;  
}
.btn {
  background: var(--brand);
  color: white;
  border: none;
  padding: 12px 30px;
  border-radius: 8px;
  font-weight: bold;
  cursor: pointer;
  transition: 0.3s;
}

.btn:hover {
  background: var(--brand-dark);
}

input {
  padding: 10px;
  border: 1px solid #ccc;
  border-radius: 8px;
  width: 220px;
  margin-bottom: 10px;
  font-size: 16px;
}

.error {
  color: #ffaaaa;
  margin-bottom: 10px;
}
.container {
      background: #fff;
      color: #333;
      border-radius: 12px;
      width: 100%;
      max-width: 1220px;
      box-shadow: 0 10px 30px rgba(0,0,0,0.2);
    }
    h1 {
      text-align: center;
      margin-bottom: 10px;
      color: #01bf52;
    }
    h2{
      text-align: center;
      margin-bottom: 10px;
      color: #003773;
    }
    p.subtitle {
      text-align: center;
      color: #666;
      margin-bottom: 40px;
    }
    .input-group {
      text-align: center;
      margin-bottom: 30px;
    }
    input {
      padding: 12px 15px;
      width: 300px;
      border: 2px solid #ddd;
      border-radius: 8px;
      font-size: 16px;
      text-align: center;
    }
    .plans {
      display: flex;
      flex-wrap: nowrap;
      justify-content: center;
      gap: 20px;
      margin: 0 20px;
    }
    .plan {
      border: 2px solid #eee;
      border-radius: 12px;
      padding: 25px;
      text-align: center;
      transition: all 0.3s ease;
      background: #fafafa;
          display: flex;
    flex-direction: column;
    justify-content: space-between;
    }
    .plan:hover {
      transform: translateY(-3px);
      border-color: #25D366;
      background: #f8fff9;
    }
    .price {
      font-size: 26px;
      font-weight: bold;
      color: #25D366;
      margin: 10px 0;
    }
    .features {
      font-size: 14px;
      color: #555;
      margin-bottom: 15px;
    }
    button {
      background: linear-gradient(135deg, #25D366, #128C7E);
      color: white;
      border: none;
      border-radius: 8px;
      padding: 12px 25px;
      font-size: 16px;
      cursor: pointer;
      transition: background 0.3s;
    }
    button:hover {
      background: #128C7E;
    }
    .footer {
      text-align: center;
      margin-top: 30px;
      color: #888;
      font-size: 13px;
    }