.gv-payment-wrapper {
    max-width: 420px;
    margin: 40px auto;
    padding: 30px;
    background: #ffffff;
    border-radius: 18px;
    box-shadow: 0 20px 40px rgba(0,0,0,0.08);
    font-family: system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
}

.gv-title {
    text-align: center;
    font-size: 28px;
    margin-bottom: 24px;
}

.gv-card-box {
    margin-bottom: 22px;
}

.gv-card-box label {
    display: block;
    font-weight: 600;
    margin-bottom: 8px;
    font-size: 14px;
}

#card-container {
    padding: 14px;
    border: 1px solid #e1e4ea;
    border-radius: 12px;
    background: #fafbfc;
    min-height: 52px;
}

.gv-pay-btn {
    width: 100%;
    padding: 14px;
    border-radius: 14px;
    border: none;
    font-size: 17px;
    font-weight: 600;
    background: linear-gradient(135deg, #000, #222);
    color: #fff;
    cursor: pointer;
    transition: transform 0.15s ease, opacity 0.15s ease;
}

.gv-pay-btn:hover {
    transform: translateY(-1px);
    opacity: 0.95;
}

.gv-pay-btn:disabled {
    opacity: 0.6;
    cursor: not-allowed;
}

.gv-msg {
    margin-top: 16px;
    text-align: center;
    font-size: 14px;
}