.card-custom {
    background: #fff;
    border-radius: 20px;
    padding: 30px;
    max-width: 460px;
    margin: 60px auto;
    box-shadow: 0 10px 25px rgba(0, 0, 0, 0.15);
}

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

.info-text {
    background-color: #ffe2e5;
    color: #5f2121;
    font-size: 0.9rem;
    padding: 12px;
    border-radius: 10px;
    margin-bottom: 15px;
}

.section-title {
    font-weight: 700;
    color: #435a85;
    margin-top: 25px;
}

.nominal-btn {
    background: linear-gradient(to right, #ff5c7c, #ff2743);
    color: #fff;
    border: none;
    padding: 10px 0;
    width: 100px;
    border-radius: 10px;
    margin: 5px;
    font-weight: 500;
    transition: 0.2s;
}

.nominal-btn:hover {
    opacity: 0.9;
    transform: scale(1.05);
}

.convert-btn {
    background: linear-gradient(to right, #ff5c7c, #ff2743);
    color: white;
    border: none;
    border-radius: 10px;
    padding: 12px;
    font-weight: 600;
    margin-top: 15px;
    width: 100%;
    transition: 0.2s;
}

.convert-btn:hover {
    opacity: 0.9;
    transform: translateY(-2px);
}

input[type="number"] {
    border-radius: 10px;
}