.donation-box {
    background: #ffffff;
    border: 1px solid #eef2f6;
    border-radius: 16px;
    padding: 40px 30px;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.02);
}
.amount-btn-group {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 12px;
    margin-bottom: 20px;
}
@media (max-width: 575px) {
    .amount-btn-group {
        grid-template-columns: 1fr 1fr;
    }
}
.amount-btn {
    background: #f8fafc;
    border: 1px solid #e2e8f0;
    color: #475569;
    padding: 12px 10px;
    border-radius: 8px;
    font-weight: 700;
    font-size: 16px;
    cursor: pointer;
    transition: all 0.3s ease;
    text-align: center;
}
.amount-btn:hover, .amount-btn.active {
    background: #0A5C45;
    border-color: #0A5C45;
    color: white;
    box-shadow: 0 4px 12px rgba(10, 92, 69, 0.15);
}
.custom-amount-input {
    position: relative;
    margin-bottom: 25px;
}
.custom-amount-input span {
    position: absolute;
    left: 16px;
    top: 50%;
    transform: translateY(-50%);
    font-weight: 700;
    color: #475569;
    font-size: 18px;
}
.custom-amount-input input {
    width: 100%;
    padding: 12px 16px 12px 35px;
    border: 1px solid #cbd5e1;
    border-radius: 8px;
    font-size: 18px;
    font-weight: 700;
    color: #0A5C45;
    outline: none;
    transition: border-color 0.3s;
}
.custom-amount-input input:focus {
    border-color: #0A5C45;
}
.impact-alert {
    background: rgba(10, 92, 69, 0.05);
    border-left: 4px solid #0A5C45;
    color: #0A5C45;
    padding: 15px 20px;
    border-radius: 0 8px 8px 0;
    font-size: 14px;
    font-weight: 600;
    line-height: 1.5;
    margin-bottom: 25px;
}
.bank-details-card {
    background: #122f2a;
    color: white;
    border-radius: 16px;
    padding: 35px 30px;
    margin-bottom: 30px;
}
.detail-row {
    display: flex;
    justify-content: space-between;
    padding: 12px 0;
    border-bottom: 1px solid rgba(255, 255, 255, 0.08);
}
.detail-row:last-child {
    border-bottom: none;
}
.detail-label {
    color: #a0aec0;
    font-size: 13px;
    font-weight: 600;
}
.detail-value {
    font-weight: 700;
    font-size: 14px;
    color: #ffffff;
    text-align: right;
}
.qr-card {
    background: white;
    border: 1px solid #edf2f7;
    border-radius: 16px;
    padding: 30px;
    text-align: center;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.02);
}
.tax-exempt-badge {
    background: #fffaf0;
    border: 1px solid #feebc8;
    color: #dd6b20;
    font-size: 13px;
    font-weight: 700;
    padding: 12px;
    border-radius: 8px;
    text-align: center;
    margin-bottom: 25px;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
}