body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
    display: flex;
    justify-content: center;
    align-items: center;
    height: 100vh;
    margin: 0;
    background-color: #f0f2f5;
}

.login-container {
    background: #fff;
    padding: 2.5rem 2rem;
    border-radius: 16px;
    box-shadow: 0 8px 24px rgba(0, 0, 0, 0.1);
    text-align: center;
    max-width: 450px;
    width: 100%;
}

.auth-icon {
    width: 64px;
    height: 64px;
    margin-bottom: 1rem;
}

h2 {
    font-size: 1.75rem;
    font-weight: 600;
    margin-bottom: 2rem;
    color: #1c1c1e;
}

.input-wrapper {
    position: relative;
    margin-bottom: 1.5rem;
}

#token-input {
    width: 100%;
    padding: 1rem 1rem 1rem 2.5rem;
    border: 1px solid #e0e0e0;
    border-radius: 8px;
    box-sizing: border-box;
    font-size: 1rem;
    transition: border-color 0.3s;
}

#token-input:focus {
    outline: none;
    border-color: #007bff;
}

.input-wrapper::before {
    content: '🔑';
    position: absolute;
    left: 12px;
    top: 50%;
    transform: translateY(-50%);
    font-size: 1.2rem;
    color: #888;
}

button {
    width: 100%;
    padding: 1rem;
    border: none;
    border-radius: 8px;
    background-color: #007bff;
    color: white;
    font-size: 1rem;
    font-weight: 500;
    cursor: pointer;
    transition: background-color 0.3s;
}

button:hover {
    background-color: #0056b3;
}

.error-message {
    color: #d93025;
    margin-top: 1rem;
    min-height: 1em;
    font-size: 0.9rem;
}