* {
    box-sizing: border-box;
}

body {
    margin: 0;
    font-family: Arial, Helvetica, sans-serif;
    background: #f5f6f8;
    color: #171717;
}

.page {
    min-height: 100vh;
    display: flex;
    justify-content: center;
    align-items: center;
    padding: 25px;
}

.payment-card {
    width: 100%;
    max-width: 430px;
    background: #ffffff;
    border-radius: 18px;
    padding: 30px;
    box-shadow: 0 8px 30px rgba(0, 0, 0, 0.08);
}

.brand {
    display: flex;
    align-items: center;
    gap: 10px;
    margin-bottom: 25px;
}

.brand-icon {
    width: 38px;
    height: 38px;
    border-radius: 50%;
    background: #111111;
    color: #ffffff;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 21px;
    font-weight: bold;
}

.brand-name {
    font-size: 19px;
    font-weight: 700;
}

.status {
    text-align: center;
    color: #666;
    font-size: 14px;
    margin-bottom: 12px;
}

.amount {
    text-align: center;
    font-size: 42px;
    font-weight: 700;
    letter-spacing: -1px;
}

.description {
    text-align: center;
    color: #777;
    margin-top: 8px;
    margin-bottom: 25px;
}

.qr-container {
    display: flex;
    justify-content: center;
    margin: 20px 0;
}

.qr-placeholder {
    width: 210px;
    height: 210px;
    border: 2px dashed #d4d4d4;
    border-radius: 12px;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    color: #777;
    text-align: center;
}

.qr-text {
    font-size: 24px;
    font-weight: bold;
}

.qr-subtext {
    max-width: 150px;
    font-size: 12px;
    margin-top: 8px;
}

.payment-method {
    display: flex;
    justify-content: space-between;
    border-top: 1px solid #eee;
    padding-top: 18px;
    margin-top: 10px;
    font-size: 14px;
}

.payment-method span {
    color: #777;
}

.address-title {
    font-size: 13px;
    color: #777;
    margin-top: 22px;
    margin-bottom: 7px;
}

.address-box {
    display: flex;
    align-items: center;
    gap: 8px;
    background: #f5f5f5;
    border-radius: 10px;
    padding: 8px;
}

.address-box span {
    flex: 1;
    font-size: 12px;
    word-break: break-all;
    padding-left: 5px;
}

.address-box button {
    border: 0;
    background: #111;
    color: #fff;
    padding: 9px 13px;
    border-radius: 7px;
    cursor: pointer;
}

.timer {
    text-align: center;
    color: #777;
    font-size: 13px;
    margin: 18px 0;
}

.timer strong {
    color: #111;
}

.pay-button {
    width: 100%;
    border: 0;
    border-radius: 11px;
    padding: 15px;
    background: #111111;
    color: white;
    font-size: 16px;
    font-weight: 600;
    cursor: pointer;
}

.pay-button:hover {
    opacity: 0.9;
}

.secure {
    text-align: center;
    color: #888;
    font-size: 12px;
    margin-top: 18px;
}

@media (max-width: 480px) {

    .page {
        padding: 12px;
    }

    .payment-card {
        padding: 23px;
        border-radius: 14px;
    }

    .amount {
        font-size: 36px;
    }

    .qr-placeholder {
        width: 190px;
        height: 190px;
    }
}