/* ===== RESET ===== */
    * {
        box-sizing: border-box;
        font-family: Arial, sans-serif;
    }

    /* ===== CARD ===== */
    .payment-card {
        max-width: 520px;
        margin: auto;
        border: 1px solid #ddd;
        border-radius: 4px;
        background: #fff;
        margin: 20px auto 0;
    }

    /* ===== CARD HEADER ===== */
    .card-header {
        background: #f5f5f5;
        padding: 12px 15px;
        border-bottom: 1px solid #ddd;

        display: flex;
        align-items: center;
    }

    .header-title {
        font-size: 16px;
        font-weight: 500;
        color: #333;
    }

    .header-timer {
        margin-left: auto; /* 🔥 THIS pushes it to right */
        font-size: 16px; /* same size */
        font-weight: 500;
        color: #d9534f; /* red */
    }

    .header-timer {
        background: #fdecea;
        padding: 3px 8px;
        border-radius: 4px;
    }

    /* ===== CARD BODY ===== */
    .card-body {
        padding: 20px;
    }

    /* ===== FORM GROUP ===== */
    .form-group {
        margin-bottom: 15px;
    }

    /* ===== LABEL ===== */
    .form-group label {
        display: block;
        margin-bottom: 6px;
        font-weight: 600;
        font-size: 14px;
    }

    /* ===== INPUT ===== */
    .form-control {
        width: 100%;
        height: 38px;
        padding: 6px 12px;
        font-size: 14px;
        border: 1px solid #ccc;
        border-radius: 4px;
        color: #555;
    }

    .form-control::placeholder {
        color: #999;
    }

    .form-control:focus {
        outline: none;
        border-color: #66afe9;
        box-shadow:
            inset 0 1px 1px rgba(0, 0, 0, 0.075),
            0 0 8px rgba(102, 175, 233, 0.4);
    }

    /* ===== BUTTON ===== */
    .btn-pay {
        width: 100%;
        height: 42px;
        background: #5cb85c;
        border: 1px solid #4cae4c;
        color: #fff;
        font-size: 16px;
        font-weight: 600;
        border-radius: 4px;
        cursor: pointer;
    }

    .btn-pay:hover {
        background: #4cae4c;
    }