@import url('https://fonts.googleapis.com/css2?family=Kanit:wght@400;600;700&display=swap');

    * {
        margin: 0;
        padding: 0;
        box-sizing: border-box;
        font-family: 'Kanit', sans-serif;
    }

    body {
        background-color: #000;
        color: #fff;
        display: flex;
        justify-content: center;
        align-items: center;
        height: 100vh;
    }

    .container {
        text-align: center;
        background: linear-gradient(145deg, #ffeb3b, #ffc107);
        padding: 40px;
        border-radius: 20px;
        box-shadow: 0 8px 30px rgba(255, 255, 0, 0.3);
        width: 90%;
        max-width: 500px;
    }

    .logo img {
        width: 150px;
        margin-bottom: 20px;
    }

    h1 {
        font-size: 2rem;
        color: #000;
        margin-bottom: 10px;
    }

    p {
        font-size: 1rem;
        color: #222;
        margin-bottom: 20px;
    }

    input,
    textarea {
        width: 100%;
        padding: 15px;
        margin-bottom: 15px;
        border: none;
        border-radius: 5px;
        font-size: 1rem;
        background-color: rgba(0, 0, 0, 0.1);
        color: #000;
    }

    input::placeholder,
    textarea::placeholder {
        color: rgba(0, 0, 0, 0.5);
    }

    textarea {
        resize: none;
    }

    .Btn {
        display: inline-flex;
        align-items: center;
        justify-content: center;
        gap: 8px;
        padding: 15px 30px;
        border: none;
        border-radius: 50px;
        font-size: 1.2rem;
        font-weight: 700;
        color: #000;
        background-color: #ffc107;
        cursor: pointer;
        transition: transform 0.2s, box-shadow 0.2s;
    }

    .Btn:hover {
        transform: translateY(-3px);
        box-shadow: 0 5px 20px rgba(255, 193, 7, 0.5);
    }

    .success-message {
        display: none;
        color: #000;
    }

    .success-message i {
        font-size: 3rem;
        color: green;
        margin-bottom: 10px;
    }

    .back-container {
        position: absolute;
        top: 20px;
        left: 20px;
    }

    .back-button {
        display: inline-flex;
        align-items: center;
        gap: 5px;
        padding: 10px 20px;
        font-size: 1rem;
        font-weight: 700;
        color: #000;
        background: #ffc107;
        border: none;
        border-radius: 5px;
        cursor: pointer;
        transition: background 0.2s;
    }

    .back-button:hover {
        background: #ffeb3b;
    }

    @media (max-width: 600px) {
        h1 {
            font-size: 1.8rem;
        }

        .Btn {
            font-size: 1rem;
            padding: 12px 25px;
        }

        input,
        textarea {
            font-size: 0.9rem;
        }
    }