.modal-overlay {
    position: fixed;
    inset: 0;
    background: rgba(10, 2, 2, 0.6);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 1000;
    opacity: 0;
    pointer-events: none;
    transition: opacity 0.2s ease;
    padding: 20px;
}

.modal-overlay.open {
    opacity: 1;
    pointer-events: auto;
}

.modal-box {
    background: #fff;
    border-radius: 16px;
    max-width: 60%;
    width: 100%;
    max-height: 90vh;
    overflow-y: auto;
    padding: 32px 28px;
    position: relative;
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.3);
}

@media (max-width: 900px) {
    .modal-box {
        max-width: 92%;
    }
}

@media (max-width: 480px) {
    .modal-box {
        max-width: 100%;
    }
}

.modal-close {
    position: absolute;
    top: 14px;
    right: 14px;
    background: none;
    border: none;
    font-size: 1rem;
    cursor: pointer;
    color: var(--color-text-muted);
    width: 32px;
    height: 32px;
    border-radius: 50%;
}

.modal-close:hover {
    background: var(--color-border);
    color: var(--color-text);
}

.modal-title {
    font-size: 1.3rem;
    font-weight: 700;
    color: var(--color-primary);
    margin-bottom: 4px;
}

.modal-subtitle {
    color: var(--color-text-muted);
    font-size: 0.9rem;
    margin-bottom: 20px;
}

.modal-step label {
    display: block;
    font-size: 0.85rem;
    font-weight: 600;
    margin-bottom: 6px;
}

.modal-field {
    margin-top: 14px;
}

.modal-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 16px;
    margin-top: 14px;
}

.modal-row .modal-field {
    margin-top: 0;
}

@media (max-width: 560px) {
    .modal-row {
        grid-template-columns: 1fr;
        gap: 0;
    }

    .modal-row .modal-field {
        margin-top: 14px;
    }

    .modal-row .modal-field:first-child {
        margin-top: 0;
    }
}

.modal-step input[type="text"],
.modal-step input[type="tel"],
.modal-step input[type="number"],
.modal-step input[type="date"],
.modal-step select,
.modal-step input[type="file"] {
    width: 100%;
    padding: 10px 12px;
    border: 1px solid var(--color-border);
    border-radius: 8px;
    font-family: inherit;
    font-size: 0.95rem;
    background: #fff;
    color: var(--color-text);
}

.modal-step input:focus,
.modal-step select:focus {
    outline: 2px solid var(--color-primary);
    outline-offset: 1px;
}

.modal-step input:disabled,
.modal-step input[readonly] {
    background: var(--color-border);
    color: var(--color-text-muted);
}

.modal-step input.field-error {
    border-color: #d64545;
    outline: 1px solid #d64545;
}

.modal-checkbox {
    display: flex !important;
    align-items: center;
    gap: 8px;
    font-size: 0.85rem;
    font-weight: 500 !important;
    margin-top: 8px !important;
    color: var(--color-text-muted);
}

.modal-checkbox input {
    width: auto;
}

.btn-modal-primary {
    margin-top: 24px;
    width: 100%;
    background: var(--color-primary);
    color: #fff;
    border: none;
    padding: 13px;
    border-radius: 8px;
    font-weight: 600;
    font-size: 0.95rem;
    cursor: pointer;
    font-family: inherit;
}

.btn-modal-primary:hover {
    background: var(--color-primary-dark);
}

.btn-modal-primary:disabled {
    opacity: 0.6;
    cursor: not-allowed;
}

.btn-modal-outline {
    flex: 1;
    background: transparent;
    border: 1px solid var(--color-border);
    color: var(--color-text);
    padding: 13px;
    border-radius: 8px;
    font-weight: 600;
    font-size: 0.95rem;
    cursor: pointer;
    font-family: inherit;
}

.btn-modal-outline:hover {
    background: var(--color-page-bg, #f4f5f7);
}

.modal-step-actions {
    display: flex;
    gap: 12px;
    margin-top: 24px;
}

.modal-step-actions .btn-modal-primary {
    margin-top: 0;
    flex: 1;
}

.modal-alert.error {
    display: none;
    background: #fdecea;
    color: #d64545;
    padding: 10px 14px;
    border-radius: 8px;
    font-size: 0.85rem;
    margin-bottom: 12px;
}

.payment-qr {
    display: block;
    margin: 0 auto 12px;
    width: 200px;
    height: 200px;
    border-radius: 12px;
    border: 1px solid var(--color-border);
}

.qr-download-link {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 6px;
    width: fit-content;
    margin: 0 auto 16px;
    padding: 8px 16px;
    border: 1px solid var(--color-primary);
    border-radius: 8px;
    color: var(--color-primary);
    text-decoration: none;
    font-size: 0.85rem;
    font-weight: 600;
}

.qr-download-link svg {
    width: 16px;
    height: 16px;
}

.qr-download-link:hover {
    background: var(--color-primary);
    color: #fff;
}

.modal-success-icon {
    width: 56px;
    height: 56px;
    border-radius: 50%;
    background: #e6f7ec;
    color: #1f8a4c;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.8rem;
    margin: 0 auto 16px;
}

#modalSuccess {
    text-align: center;
}

#modalSuccess .btn-modal-primary {
    max-width: 220px;
    margin-left: auto;
    margin-right: auto;
}

@media (max-width: 480px) {
    .modal-box {
        padding: 24px 20px;
    }
}