* {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

/* Background */
body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    background: linear-gradient(135deg, #e0f7fa, #e1bee7);
    min-height: 100vh;
    display: flex;
    justify-content: center;
    align-items: center;
}

/* Main Card */
.container {
    background: #fff;
    padding: 2rem;
    border-radius: 12px;
    width: 100%;
    max-width: 450px;
    box-shadow: 0 10px 30px rgba(0,0,0,0.15);
    animation: fadeIn 0.5s ease;
}

/* Title */
h1 {
    text-align: center;
    margin-bottom: 1.5rem;
    color: #333;
}

/* Labels */
label {
    display: block;
    margin-bottom: 6px;
    font-weight: 600;
    color: #555;
}

/* Inputs + textarea */
input, textarea {
    width: 100%;
    padding: 10px;
    margin-bottom: 15px;
    border: 1px solid #ddd;
    border-radius: 6px;
    font-size: 15px;
    transition: 0.3s;
}

/* Focus effect */
input:focus, textarea:focus {
    outline: none;
    border-color: #7b1fa2;
    box-shadow: 0 0 5px rgba(123, 31, 162, 0.3);
}

/* Button */
button {
    width: 100%;
    padding: 12px;
    background: linear-gradient(135deg, #7b1fa2, #512da8);
    color: white;
    border: none;
    border-radius: 6px;
    font-size: 16px;
    cursor: pointer;
    transition: 0.3s;
}

/* Hover */
button:hover {
    transform: translateY(-1px);
    box-shadow: 0 5px 15px rgba(0,0,0,0.2);
}

/* Click */
button:active {
    transform: scale(0.98);
}

/* Disabled */
button:disabled {
    background: #aaa;
    cursor: not-allowed;
}

/* Message */
#message {
    margin-top: 10px;
    text-align: center;
    font-weight: 600;
    padding: 8px;
    border-radius: 5px;
}

/* Success */
.success {
    background: #d4edda;
    color: #155724;
}

/* Error */
.error {
    background: #f8d7da;
    color: #721c24;
}

/* Animation */
@keyframes fadeIn {
    from {
        opacity: 0;
        transform: translateY(15px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* Mobile Responsive */
@media (max-width: 480px) {
    .container {
        padding: 1.5rem;
    }

    h1 {
        font-size: 20px;
    }
}