/* Invoice Modal Styles */
.invoice-modal .modal-dialog {
    max-width: 800px;
}

.invoice-modal .modal-content {
    border: none;
    border-radius: 20px;
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.3);
    overflow: hidden;
}

/* Header */
.invoice-modal .modal-header {
    background: linear-gradient(135deg, #1a237e 0%, #283593 50%, #3949ab 100%);
    border: none;
    padding: 2rem 2rem 1.5rem;
}

.invoice-modal .modal-title {
    font-size: 1.4rem;
    letter-spacing: 0.3px;
    margin-bottom: 0.25rem;
}

.invoice-modal .modal-subtitle {
    color: rgba(255, 255, 255, 0.5);
    font-size: 0.875rem;
    margin: 0;
}

.invoice-modal .modal-icon {
    color: #ff8700;
    font-size: 1.3rem;
}

.invoice-modal .btn-close {
    opacity: 0.8;
}

/* Body */
.invoice-modal .modal-body {
    padding: 2.5rem;
    background: linear-gradient(to bottom, #f8f9fc 0%, #ffffff 100%);
}

.invoice-modal .form-row {
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
}

/* Form Fields */
.invoice-modal .form-floating > .form-control,
.invoice-modal .form-floating > .form-select {
    border-radius: 10px;
    border: 2px solid #e0e6ed;
}

.invoice-modal .form-floating > .form-select {
    padding-top: 1.4rem;
    padding-bottom: 0.6rem;
}

.invoice-modal .form-floating > label {
    padding: 0.35rem 0.75rem;
    opacity: 0.8;
}

.invoice-modal .form-floating select#type + label {
    font-size: 1.1rem;
    font-weight: 500;
}

.invoice-modal .form-floating > .form-control:focus,
.invoice-modal .form-floating > .form-select:focus {
    border-color: #3949ab;
    box-shadow: 0 0 0 0.2rem rgba(57, 73, 171, 0.15);
}

/* Validation states */
.invoice-modal .form-control.is-invalid,
.invoice-modal .form-select.is-invalid,
.invoice-modal .was-validated .form-control:invalid,
.invoice-modal .was-validated .form-select:invalid {
    border-color: var(--bs-danger);
    box-shadow: 0 0 0 0.2rem rgba(var(--bs-danger-rgb), 0.25);
}

.invoice-modal .form-control.is-valid,
.invoice-modal .form-select.is-valid,
.invoice-modal .was-validated .form-control:valid,
.invoice-modal .was-validated .form-select:valid {
    border-color: var(--bs-success);
    box-shadow: 0 0 0 0.2rem rgba(var(--bs-success-rgb), 0.2);
}

.invoice-modal .form-select {
    padding: 1rem 0.75rem;
    height: auto;
}

.invoice-modal textarea.form-control {
    min-height: 100px;
    resize: vertical;
}

.invoice-modal textarea.form-control[name="note"] {
    min-height: 120px;
}

.invoice-modal .form-icon {
    color: #3949ab;
    margin-right: 0.5rem;
}

.invoice-modal .field-hint {
    color: #6c757d;
    font-size: 0.875rem;
    margin-top: 0.25rem;
    margin-left: 0.5rem;
    display: block;
}

.invoice-modal .field-hint i {
    margin-right: 0.25rem;
}

/* Footer */
.invoice-modal .modal-footer {
    border-top: 1px solid #e8eaf0;
    padding: 1.5rem 2rem;
    background: #ffffff;
}

.invoice-modal .btn {
    border-radius: 10px;
    padding: 0.6rem 2rem;
    font-weight: 500;
}

.invoice-modal .btn-primary {
    background: linear-gradient(135deg, #28a745 0%, #20c997 100%);
    border: none;
    font-weight: 600;
    padding: 0.6rem 2.5rem;
    box-shadow: 0 4px 12px rgba(40, 167, 69, 0.3);
}

.invoice-modal .btn-primary:hover {
    box-shadow: 0 6px 16px rgba(4, 58, 11, 0.521);
    transform: translateY(-1px);
}

.invoice-modal .btn-primary:disabled {
    opacity: 0.7;
    cursor: not-allowed;
}

/* Row Layout */
.invoice-modal .row-cols {
    display: grid;
    gap: 1.5rem;
}

.invoice-modal .row-2cols {
    grid-template-columns: 1fr 2fr;
}

@media (max-width: 768px) {
    .invoice-modal .row-2cols {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 576px) {
    .invoice-modal .modal-dialog {
        max-width: none;
        margin: 0.5rem;
    }

    .invoice-modal .modal-header {
        padding: 1.25rem 1rem 1rem;
    }

    .invoice-modal .modal-body {
        padding: 1rem;
    }

    .invoice-modal .modal-footer {
        padding: 1rem;
        flex-direction: column;
        gap: 0.5rem;
    }

    .invoice-modal .modal-footer .btn {
        width: 100%;
    }
}