body {
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
    background-color: #f4f4f9;
    display: flex;
    justify-content: center;
    align-items: center;
    height: 100vh;
    margin: 0;
}

.container {
    background: white;
    padding: 2rem;
    border-radius: 12px;
    box-shadow: 0 10px 25px rgba(0, 0, 0, 0.1);
    width: 100%;
    max-width: 500px;
    text-align: center;
}

h1 {
    margin-bottom: 1.5rem;
    color: #333;
    font-weight: 700;
}

.input-group {
    margin-bottom: 1.5rem;
    text-align: left;
}

label {
    display: block;
    margin-bottom: 0.5rem;
    color: #666;
    font-size: 0.9rem;
}

input[type="text"] {
    width: 100%;
    padding: 12px;
    border: 2px solid #eee;
    border-radius: 8px;
    font-size: 16px;
    box-sizing: border-box;
    transition: border-color 0.3s;
}

input[type="text"]:focus {
    border-color: #ffda2a;
    outline: none;
}

button {
    background-color: #ffda2a;
    color: #000;
    border: none;
    padding: 12px 30px;
    font-size: 16px;
    font-weight: bold;
    border-radius: 8px;
    cursor: pointer;
    transition: transform 0.1s, background-color 0.2s;
    width: 100%;
}

button:hover {
    background-color: #e6c426;
    transform: translateY(-1px);
}

button:active {
    transform: translateY(1px);
}

.message {
    margin-top: 1.5rem;
    padding: 1rem;
    border-radius: 6px;
    font-size: 14px;
}

.error {
    background-color: #ffebee;
    color: #c62828;
    border: 1px solid #ffcdd2;
}

.success {
    background-color: #e8f5e9;
    color: #2e7d32;
    border: 1px solid #c8e6c9;
}

.footer {
    margin-top: 2rem;
    font-size: 12px;
    color: #999;
}