body {
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
    background: linear-gradient(135deg, #1e3c72, #2a5298);
    margin: 0;
    padding: 0;
    display: flex;
    justify-content: center;
    align-items: center;
    height: 100vh;
    color: #fff;
}

.container {
    text-align: center;
    background: rgba(255, 255, 255, 0.1);
    padding: 30px;
    border-radius: 20px;
    box-shadow: 0 8px 30px rgba(0, 0, 0, 0.3);
    width: 90%;
    max-width: 400px;
}

h1 {
    font-size: 2rem;
    margin-bottom: 20px;
}

form {
    display: flex;
    flex-direction: column;
    gap: 15px;
}

button {
    padding: 15px;
    font-size: 1.2rem;
    border: none;
    border-radius: 12px;
    background: #00c6ff;
    background: linear-gradient(90deg, #0072ff, #00c6ff);
    color: white;
    font-weight: bold;
    cursor: pointer;
    transition: transform 0.1s ease, box-shadow 0.2s ease;
}

button:hover {
    box-shadow: 0 4px 15px rgba(0, 198, 255, 0.6);
}

button:active {
    transform: scale(0.97);
}