.pp-payment-wrap {
    --pp-f-primary: #000000;
    --pp-f-text:    #ffffff;
    --pp-f-radius:  8px;
    max-width: 680px;
    margin: 0 auto;
    font-family: inherit;
}

.pp-payment-header {
    margin-bottom: 24px;
}

.pp-payment-eyebrow {
    font-size: 14px;
    font-weight: 500;
    color: #6b7280;
    margin: 0 0 4px;
    letter-spacing: 0.3px;
}

.pp-payment-title {
    font-size: clamp(2rem, 5vw, 3.5rem);
    font-weight: 900;
    line-height: 1.1;
    margin: 0;
    color: inherit;
    letter-spacing: -1px;
}

.pp-payment-card {
    background: #ffffff;
    border-radius: calc(var(--pp-f-radius) * 2);
    padding: 36px 40px;
    box-shadow: 0 2px 24px rgba(0,0,0,.06);
}

/* Notices */
.pp-payment-notice {
    padding: 12px 16px;
    border-radius: var(--pp-f-radius);
    margin-bottom: 20px;
    font-size: 14px;
    font-weight: 500;
}
.pp-payment-notice.success {
    background: #f0fdf4;
    color: #16a34a;
    border: 1px solid #86efac;
}
.pp-payment-notice.error {
    background: #fef2f2;
    color: #dc2626;
    border: 1px solid #fca5a5;
}

/* Form Layout */
.pp-payment-form {
    display: flex;
    flex-direction: column;
    gap: 18px;
}

.pp-form-row {
    display: grid;
    gap: 16px;
}

.pp-row-2 { grid-template-columns: 1fr 1fr; }
.pp-row-3 { grid-template-columns: 1fr 1fr 1fr; }

/* Fields */
.pp-form-field {
    display: flex;
    flex-direction: column;
    gap: 6px;
}

.pp-form-field label {
    font-size: 13px;
    font-weight: 600;
    color: #374151;
}

.pp-form-field label sup {
    color: var(--pp-f-primary);
    font-size: 12px;
}

.pp-form-field input,
.pp-form-field textarea,
.pp-form-field select {
    padding: 11px 14px;
    border: 1.5px solid #e5e7eb;
    border-radius: var(--pp-f-radius);
    font-size: 15px;
    color: #1f2937;
    background: #fff;
    width: 100%;
    box-sizing: border-box;
    transition: border-color .2s, box-shadow .2s;
    font-family: inherit;
    -webkit-appearance: none;
    appearance: none;
}

.pp-form-field input:focus,
.pp-form-field textarea:focus,
.pp-form-field select:focus {
    border-color: var(--pp-f-primary);
    outline: none;
    box-shadow: 0 0 0 3px color-mix(in srgb, var(--pp-f-primary) 15%, transparent);
}

.pp-form-field input.pp-error,
.pp-form-field textarea.pp-error {
    border-color: #dc2626;
    box-shadow: 0 0 0 3px rgba(220,38,38,.1);
}

.pp-field-error {
    font-size: 12px;
    color: #dc2626;
    margin-top: 2px;
}

.pp-form-field textarea {
    resize: vertical;
    min-height: 90px;
}

/* Amount Field */
.pp-amount-wrap {
    position: relative;
    display: flex;
    align-items: center;
}

.pp-currency {
    position: absolute;
    left: 14px;
    font-size: 15px;
    font-weight: 600;
    color: #6b7280;
    pointer-events: none;
    z-index: 1;
}

.pp-amount-wrap input {
    padding-left: 30px;
    font-size: 22px;
    font-weight: 700;
    letter-spacing: -0.5px;
}

/* Submit Button */
.pp-pay-btn {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    width: 100%;
    padding: 15px 24px;
    background-color: var(--pp-f-primary);
    color: var(--pp-f-text);
    border: none;
    border-radius: var(--pp-f-radius);
    font-size: 16px;
    font-weight: 700;
    cursor: pointer;
    letter-spacing: 0.2px;
    transition: opacity .2s, transform .1s;
    font-family: inherit;
    margin-top: 6px;
}

.pp-pay-btn:hover:not(:disabled) {
    opacity: .88;
}

.pp-pay-btn:active:not(:disabled) {
    transform: scale(.98);
}

.pp-pay-btn:disabled {
    opacity: .65;
    cursor: not-allowed;
}

/* Loader spin */
.pp-btn-loader svg {
    animation: pp-spin .8s linear infinite;
}

@keyframes pp-spin {
    from { transform: rotate(0deg); }
    to   { transform: rotate(360deg); }
}

/* Responsive */
@media (max-width: 600px) {
    .pp-payment-card {
        padding: 24px 20px;
        border-radius: 16px;
    }

    .pp-row-2,
    .pp-row-3 {
        grid-template-columns: 1fr;
    }

    .pp-payment-title {
        font-size: 2rem;
    }
}