* {
        box-sizing: border-box;
        margin: 0;
        padding: 0;
    }
    
    body {
        font-family: 'Segoe UI', sans-serif;
        background-color: #ffffff;
        display: flex;
        flex-direction: column;
        justify-content: center;
        align-items: center;
        min-height: 100vh;
        color: black;
        padding: 1rem;
        line-height: 1.6;
    }

    h2 {
        text-align: center;
        margin-bottom: 1.8rem;
        font-weight: 600;
        font-size: clamp(1.5rem, 4vw, 1.8rem);
    }

    label {
        display: block;
        margin-bottom: 0.5rem;
        font-weight: 500;
        font-size: clamp(0.9rem, 2.5vw, 1rem);
        width: 100%;
        max-width: 400px;
    }

    input {
        width: 100%;
        max-width: 400px;
        padding: clamp(12px, 3vw, 14px);
        border: 1px solid #ddd;
        border-radius: 4px;
        font-size: clamp(0.9rem, 2.5vw, 1rem);
        transition: border-color 0.3s;
        margin-bottom: 1rem;
    }

    input:focus {
        outline: none;
        border-color: #4CAF50;
        box-shadow: 0 0 0 2px rgba(76, 175, 80, 0.2);
    }

    button {
        width: 100%;
        max-width: 400px;
        padding: clamp(12px, 3vw, 14px);
        background-color: #4CAF50;
        color: white;
        border: none;
        border-radius: 4px;
        font-size: clamp(0.9rem, 2.5vw, 1rem);
        font-weight: 600;
        cursor: pointer;
        transition: background-color 0.3s, transform 0.2s;
        margin-bottom: 1rem;
    }

    button:hover {
        background-color: #3d8b40;
        transform: translateY(-2px);
    }

    button:active {
        transform: translateY(0);
    }

    p {
        text-align: center;
        margin: 1rem 0;
        font-size: clamp(0.9rem, 2.5vw, 1rem);
        width: 100%;
        max-width: 400px;
    }

    a {
        display: block;
        text-align: center;
        color: black;
        text-decoration: none;
        margin-top: 1.2rem;
        transition: color 0.3s;
        font-size: clamp(0.9rem, 2.5vw, 1rem);
        width: 100%;
        max-width: 400px;
    }

    a:hover {
        color: #4CAF50;
    }

    @media (max-width: 480px) {
        body {
            padding: 0.5rem;
        }
        
        input, button, label, p, a {
            max-width: 100%;
        }
    }

    @media (min-width: 768px) {
        body {
            padding: 2rem;
        }
    }