@import url('https://fonts.googleapis.com/css2?family=Inter:wght@400;600;700&display=swap');

body {
    font-family: 'Inter', sans-serif;
    background: linear-gradient(to right, #eef2f3, #8e9eab);
    margin: 0;
    padding: 0;
    color: #333;
}

.container {
    background: #fff;
    padding: 40px;
    max-width: 600px;
    margin: 80px auto;
    border-radius: 16px;
    box-shadow: 0 12px 24px rgba(0, 0, 0, 0.1);
    text-align: center;
}

h1 {
    font-size: 2.5rem;
    font-weight: 700;
    margin-bottom: 20px;
    color: #2c3e50;
}

p {
    font-size: 1.1rem;
    margin-bottom: 20px;
    color: #555;
}

input[type="email"] {
    width: 90%;
    padding: 15px;
    font-size: 1rem;
    margin-bottom: 20px;
    border: 2px solid #ccc;
    border-radius: 8px;
    outline: none;
    transition: border-color 0.3s;
}

input[type="email"]:focus {
    border-color: #0066cc;
}

button {
    padding: 14px 28px;
    font-size: 1rem;
    font-weight: 600;
    background: #0066cc;
    color: #fff;
    border: none;
    border-radius: 8px;
    cursor: pointer;
    transition: background 0.3s;
}

button:hover {
    background: #004999;
}

#result {
    margin-top: 20px;
    font-size: 1.1rem;
    font-weight: 600;
    color: #2c3e50;
}

footer {
    margin-top: 40px;
    font-size: 0.9rem;
    color: #888;
}

.spinner {
  display: inline-block;
  width: 16px;
  height: 16px;
  border: 3px solid #ccc;
  border-top: 3px solid #0066cc;
  border-radius: 50%;
  animation: spin 0.6s linear infinite;
  margin-right: 10px;
  vertical-align: middle;
}

@keyframes spin {
  to { transform: rotate(360deg); }
}