.pu-tool { display: grid; gap: 20px; }
.pu-tool label { display: grid; gap: 7px; color: #344054; font-weight: 800; font-size: 14px; line-height: 1.35; }
.pu-tool input, .pu-tool textarea, .pu-tool select { width: 100%; min-height: 48px; border: 1px solid #cfd8e6; border-radius: 12px; background: #fff; color: #172033; padding: 11px 13px; outline: none; transition: border-color .18s ease, box-shadow .18s ease; }
.pu-tool textarea { min-height: 190px; resize: vertical; line-height: 1.55; }
.pu-tool select { cursor: pointer; }
.pu-tool input:hover, .pu-tool textarea:hover, .pu-tool select:hover { border-color: #b8c5d8; }
.pu-tool input:focus, .pu-tool textarea:focus, .pu-tool select:focus { border-color: #3563e9; box-shadow: 0 0 0 3px rgba(53,99,233,.12); }
.pu-tool__grid { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 14px; }
.pu-tool__result { min-height: 108px; border: 1px solid #dce6fa; border-radius: 16px; padding: 18px 20px; background: #edf3ff; display: flex; align-items: center; justify-content: space-between; gap: 20px; }
.pu-tool__result > div { min-width: 0; }
.pu-tool__result-label { display: block; color: #667085; font-size: 12px; font-weight: 850; text-transform: uppercase; letter-spacing: .08em; }
.pu-tool__result small { display: block; margin-top: 4px; color: #667085; font-size: 13px; font-weight: 600; }
.pu-tool__result strong { color: #2447b8; font-size: clamp(25px, 5vw, 34px); line-height: 1.15; overflow-wrap: anywhere; text-align: right; }
.pu-tool__result--stack { align-items: flex-start; flex-direction: column; }
.pu-tool__result--stack strong { width: 100%; font-size: 15px; line-height: 1.55; text-align: left; }
.pu-tool__actions { display: flex; flex-wrap: wrap; gap: 9px; }
.pu-tool button { min-height: 42px; border: 1px solid #172033; border-radius: 11px; padding: 9px 14px; background: #172033; color: #fff; cursor: pointer; font-weight: 800; transition: background-color .18s ease, border-color .18s ease, transform .18s ease; }
.pu-tool button:hover { background: #3563e9; border-color: #3563e9; transform: translateY(-1px); }
.pu-tool button:focus-visible { outline: 3px solid rgba(53,99,233,.25); outline-offset: 2px; }
.pu-tool .pu-button--secondary { background: #fff; color: #344054; border-color: #cfd8e6; }
.pu-tool .pu-button--secondary:hover { background: #f7f9fc; color: #172033; border-color: #b8c5d8; }
.pu-optional { color: #98a2b3; font-weight: 650; font-size: 12px; }
.pu-tool__stats { display: flex; gap: 18px; flex-wrap: wrap; color: #667085; font-size: 13px; }
.pu-tool__stats strong { color: #344054; }
.pu-tool--empty { padding: 32px; text-align: center; background: #f7f9fc; border: 1px solid #e2e8f0; border-radius: 16px; }
.pu-tool--empty > span { display: inline-block; color: #3563e9; font-weight: 850; font-size: 12px; text-transform: uppercase; letter-spacing: .1em; }
.pu-tool--empty strong { display: block; margin: 6px 0 5px; font-size: 24px; }
.pu-tool--empty p { color: #667085; margin: 0 auto; max-width: 560px; }
.pu-tool--empty .pu-tool__admin-note { margin-top: 16px; padding-top: 16px; border-top: 1px solid #e2e8f0; font-size: 12px; }
@media (max-width: 640px) {
    .pu-tool__grid { grid-template-columns: 1fr; }
    .pu-tool__result { align-items: flex-start; flex-direction: column; }
    .pu-tool__result strong { text-align: left; }
    .pu-tool__actions button { flex: 1 1 auto; }
}

/* v0.3 polished controls */
.pu-tool__field { display: grid; gap: 7px; }
.pu-tool__field > label { display: block; }
.pu-tool__actions--end { justify-content: flex-end; margin-top: -4px; }
.pu-tool__result { position: relative; overflow: hidden; }
.pu-tool__result::before { content: ""; position: absolute; inset: 0 auto 0 0; width: 4px; background: #3563e9; }
.pu-tool__result strong { font-variant-numeric: tabular-nums; }
.pu-tool input::placeholder, .pu-tool textarea::placeholder { color: #9aa6b7; opacity: 1; }
.pu-tool select { appearance: none; background-image: linear-gradient(45deg, transparent 50%, #667085 50%), linear-gradient(135deg, #667085 50%, transparent 50%); background-position: calc(100% - 18px) 20px, calc(100% - 13px) 20px; background-size: 5px 5px, 5px 5px; background-repeat: no-repeat; padding-right: 38px; }
@media (max-width: 640px) {
    .pu-tool__actions--end { justify-content: stretch; }
    .pu-tool__actions--end button { flex: 1 1 0; }
}

/* v0.4 content tool components */
.pu-result-table { width: 100%; display: grid; gap: 9px; }
.pu-result-table > div { display: flex; align-items: center; justify-content: space-between; gap: 20px; padding: 3px 0; }
.pu-result-table span { color: #667085; font-size: 14px; font-weight: 700; }
.pu-result-table strong { font-size: 16px; color: #172033; }
.pu-result-table .pu-result-total { margin-top: 5px; padding-top: 12px; border-top: 1px solid #cddaf4; }
.pu-result-table .pu-result-total span { color: #172033; }
.pu-result-table .pu-result-total strong { color: #2447b8; font-size: 24px; }
.pu-tool__result--stack > small { color: #667085; line-height: 1.55; }
.pu-tool__status { border: 1px solid #d7deea; background: #f7f9fc; border-radius: 12px; padding: 10px 12px; font-size: 13px; font-weight: 750; color: #667085; }
.pu-tool__status[data-state="valid"] { background: #ecfdf5; border-color: #a7f3d0; color: #067647; }
.pu-tool__status[data-state="invalid"] { background: #fff1f2; border-color: #fecdd3; color: #be123c; }
.pu-tool[data-pu-tool="json_formatter"] textarea { font-family: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, "Liberation Mono", monospace; font-size: 14px; }
@media (max-width: 640px) {
    .pu-result-table > div { align-items: flex-start; }
    .pu-result-table strong { text-align: right; }
}

/* v0.9.1 Client-ready Invoice Builder */
.pu-tool__grid--3 { grid-template-columns: repeat(3, minmax(0, 1fr)); }
.pu-tool__status[data-state="success"] { background: #ecfdf5; border-color: #a7f3d0; color: #067647; }
.pu-tool__status[data-state="error"] { background: #fff1f2; border-color: #fecdd3; color: #be123c; }
.pu-link-button {
    min-height: auto !important;
    padding: 0 !important;
    border: 0 !important;
    background: transparent !important;
    color: #3563e9 !important;
    font-size: 13px;
    text-align: left;
    box-shadow: none !important;
}
.pu-link-button:hover { color: #2447b8 !important; transform: none !important; text-decoration: underline; }
.pu-invoice-builder { gap: 24px; }
.pu-invoice-builder__topbar {
    display: flex;
    justify-content: space-between;
    gap: 20px;
    align-items: center;
    padding: 16px 18px;
    border: 1px solid #dbe3ef;
    border-radius: 14px;
    background: #f8fafc;
}
.pu-invoice-builder__topbar > div:first-child { display: grid; gap: 3px; }
.pu-invoice-builder__topbar strong { color: #172033; font-size: 15px; }
.pu-invoice-builder__topbar span { color: #667085; font-size: 12px; line-height: 1.45; }
.pu-invoice-builder__layout {
    display: grid;
    grid-template-columns: minmax(0, 1fr);
    gap: 30px;
    align-items: start;
}
.pu-invoice-builder__preview-column {
    min-width: 0;
    padding-top: 4px;
    border-top: 1px solid #e3e8ef;
}
.pu-invoice-preview-heading {
    display: flex;
    align-items: flex-end;
    justify-content: space-between;
    gap: 20px;
    margin: 0 0 14px;
    padding-top: 24px;
}
.pu-invoice-preview-heading > div { display: grid; gap: 4px; }
.pu-invoice-preview-heading h3 { margin: 0; color: #172033; font-size: 20px; line-height: 1.2; }
.pu-invoice-preview-heading p { margin: 0; color: #667085; font-size: 12px; line-height: 1.5; }
.pu-invoice-preview-heading span {
    flex: 0 0 auto;
    padding: 5px 9px;
    border-radius: 999px;
    background: #e7f8f4;
    color: #087f6b;
    font-size: 10px;
    font-weight: 900;
    letter-spacing: .05em;
    text-transform: uppercase;
}
.pu-invoice-builder__editor { display: grid; gap: 18px; }
.pu-invoice-form-section {
    display: grid;
    gap: 16px;
    padding: 20px;
    border: 1px solid #dfe6ef;
    border-radius: 16px;
    background: #fff;
}
.pu-invoice-form-section textarea { min-height: 92px; }
.pu-invoice-form-section__heading {
    display: flex;
    align-items: flex-start;
    justify-content: space-between;
    gap: 16px;
    padding-bottom: 14px;
    border-bottom: 1px solid #edf0f5;
}
.pu-invoice-form-section__heading > div { display: flex; align-items: flex-start; gap: 11px; }
.pu-invoice-form-section__heading h3 { margin: 0; color: #172033; font-size: 17px; line-height: 1.25; }
.pu-invoice-form-section__heading p { margin: 3px 0 0; color: #667085; font-size: 12px; line-height: 1.45; }
.pu-invoice-step {
    display: grid;
    place-items: center;
    flex: 0 0 28px;
    width: 28px;
    height: 28px;
    border-radius: 50%;
    background: #edf3ff;
    color: #3563e9;
    font-size: 12px;
    font-weight: 900;
}
.pu-checkbox-label {
    display: flex !important;
    align-items: center;
    gap: 9px !important;
    min-height: 48px;
    padding: 11px 13px;
    border: 1px solid #cfd8e6;
    border-radius: 12px;
    background: #fff;
}
.pu-checkbox-label input { width: 18px !important; min-height: 18px !important; height: 18px; margin: 0; padding: 0; box-shadow: none !important; }
.pu-invoice-logo-field {
    display: grid;
    grid-template-columns: 92px minmax(0, 1fr);
    gap: 14px;
    align-items: center;
}
.pu-invoice-logo-field__preview {
    display: grid;
    place-items: center;
    width: 92px;
    height: 72px;
    overflow: hidden;
    border: 1px dashed #bdc8d8;
    border-radius: 12px;
    background: #f8fafc;
    color: #98a2b3;
    font-size: 12px;
    font-weight: 800;
}
.pu-invoice-logo-field__preview img { display: block; width: 100%; height: 100%; object-fit: contain; padding: 6px; }
.pu-invoice-logo-field > div:last-child { min-width: 0; }
.pu-invoice-logo-field input[type="file"] { min-height: 44px; padding: 8px; font-size: 12px; }
.pu-invoice-logo-field small { display: block; margin-top: 6px; color: #7b8798; font-size: 11px; line-height: 1.45; }
.pu-invoice-line-items { display: grid; gap: 10px; }
.pu-invoice-line-item {
    display: grid;
    grid-template-columns: minmax(180px, 1fr) 80px 115px 115px 36px;
    gap: 9px;
    align-items: end;
    padding: 12px;
    border: 1px solid #e1e7ef;
    border-radius: 13px;
    background: #fbfcfe;
}
.pu-invoice-line-item label { font-size: 12px; }
.pu-invoice-line-item input { min-height: 42px; padding: 8px 10px; border-radius: 9px; }
.pu-invoice-line-item__amount { display: grid; gap: 8px; min-width: 0; padding-bottom: 11px; }
.pu-invoice-line-item__amount span { color: #344054; font-size: 12px; font-weight: 800; }
.pu-invoice-line-item__amount strong { color: #172033; font-size: 13px; overflow-wrap: anywhere; }
.pu-invoice-line-item__remove {
    width: 36px;
    min-height: 42px !important;
    padding: 0 !important;
    border-color: #e3e8ef !important;
    background: #fff !important;
    color: #98a2b3 !important;
    font-size: 22px;
}
.pu-invoice-line-item__remove:hover { border-color: #fda4af !important; background: #fff1f2 !important; color: #be123c !important; }
.pu-invoice-add-item { justify-self: start; }
.pu-invoice-preview-wrap { position: static; display: grid; gap: 12px; }
.pu-invoice-preview {
    width: 100%;
    min-width: 0;
    padding: 28px;
    border: 1px solid #d8e0eb;
    border-radius: 16px;
    background: #fff;
    color: #172033;
    box-shadow: 0 12px 34px rgba(23, 32, 51, .08);
    font-size: 13px;
}
.pu-invoice-preview__top {
    display: flex;
    justify-content: space-between;
    gap: 24px;
    align-items: flex-start;
    padding-bottom: 24px;
    border-bottom: 2px solid #172033;
}
.pu-invoice-preview__brand { display: flex; gap: 12px; align-items: center; min-width: 0; }
.pu-invoice-preview__brand img { width: 72px; height: 54px; object-fit: contain; flex: 0 0 auto; }
.pu-invoice-preview__brand > div { display: grid; gap: 3px; min-width: 0; }
.pu-invoice-preview__brand strong { color: #172033; font-size: 16px; line-height: 1.3; overflow-wrap: anywhere; }
.pu-invoice-preview__brand span { color: #667085; font-size: 10px; line-height: 1.4; overflow-wrap: anywhere; }
.pu-invoice-preview__title-block { flex: 0 0 auto; text-align: right; }
.pu-invoice-preview__title-block > span { display: block; color: #3563e9; font-size: 11px; font-weight: 900; letter-spacing: .14em; }
.pu-invoice-preview__title-block strong { display: block; margin-top: 3px; color: #172033; font-size: clamp(23px, 3vw, 31px); line-height: 1.05; }
.pu-invoice-preview__meta-grid {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 22px;
    padding: 22px 0;
}
.pu-invoice-preview__meta-grid > div > span,
.pu-invoice-preview__message > span,
.pu-invoice-preview__terms > span {
    display: block;
    margin-bottom: 6px;
    color: #667085;
    font-size: 10px;
    font-weight: 900;
    letter-spacing: .09em;
    text-transform: uppercase;
}
.pu-invoice-preview__meta-grid strong { display: block; color: #172033; font-size: 14px; line-height: 1.45; }
.pu-invoice-preview__meta-grid p { margin: 4px 0 0; color: #475467; font-size: 11px; line-height: 1.55; white-space: pre-line; overflow-wrap: anywhere; }
.pu-invoice-preview__dates { grid-column: 1 / -1; padding: 12px 14px; border-radius: 10px; background: #f7f9fc; }
.pu-invoice-preview__dates dl { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 12px; margin: 0; }
.pu-invoice-preview__dates dl > div { min-width: 0; }
.pu-invoice-preview__dates dt { margin: 0 0 3px; color: #667085; font-size: 9px; font-weight: 850; text-transform: uppercase; letter-spacing: .05em; }
.pu-invoice-preview__dates dd { margin: 0; color: #172033; font-size: 11px; font-weight: 800; overflow-wrap: anywhere; }
.pu-invoice-preview__items { overflow-x: auto; border-top: 1px solid #e4e9f1; border-bottom: 1px solid #e4e9f1; }
.pu-invoice-preview__items table { width: 100%; min-width: 460px; border-collapse: collapse; }
.pu-invoice-preview__items th { padding: 10px 7px; color: #667085; font-size: 9px; font-weight: 900; letter-spacing: .06em; text-transform: uppercase; text-align: right; }
.pu-invoice-preview__items th:first-child { padding-left: 0; text-align: left; }
.pu-invoice-preview__items th:last-child { padding-right: 0; }
.pu-invoice-preview__items td { padding: 13px 7px; border-top: 1px solid #edf0f4; color: #344054; font-size: 11px; line-height: 1.45; text-align: right; vertical-align: top; }
.pu-invoice-preview__items tbody tr:first-child td { border-top: 0; }
.pu-invoice-preview__items td:first-child { padding-left: 0; color: #172033; font-weight: 750; text-align: left; }
.pu-invoice-preview__items td:last-child { padding-right: 0; color: #172033; font-weight: 800; }
.pu-invoice-preview__summary-area { display: grid; grid-template-columns: minmax(0, 1fr) minmax(210px, 270px); gap: 28px; align-items: start; padding-top: 20px; }
.pu-invoice-preview__message p,
.pu-invoice-preview__terms p { margin: 0; color: #475467; font-size: 11px; line-height: 1.6; white-space: pre-wrap; }
.pu-invoice-preview__totals { display: grid; gap: 0; }
.pu-invoice-preview__totals > div { display: flex; justify-content: space-between; gap: 18px; padding: 5px 0; }
.pu-invoice-preview__totals span { color: #667085; font-size: 11px; font-weight: 700; }
.pu-invoice-preview__totals strong { color: #172033; font-size: 11px; text-align: right; }
.pu-invoice-preview__grand-total { margin-top: 5px; padding-top: 10px !important; border-top: 1px solid #cfd8e6; }
.pu-invoice-preview__grand-total span { color: #172033; font-size: 13px; }
.pu-invoice-preview__grand-total strong { color: #2447b8; font-size: 20px; }
.pu-invoice-preview__terms { margin-top: 20px; padding: 14px; border-radius: 10px; background: #f8fafc; }
.pu-invoice-preview__footer { display: flex; justify-content: space-between; gap: 16px; margin-top: 24px; padding-top: 12px; border-top: 1px solid #edf0f4; color: #667085; font-size: 9px; }
.pu-invoice-preview__footer strong { color: #344054; }
.pu-invoice-preview-actions { display: flex; align-items: center; gap: 12px; justify-content: space-between; }
.pu-invoice-preview-actions small { color: #7b8798; font-size: 11px; line-height: 1.4; text-align: right; }

@media (max-width: 1120px) {
    .pu-invoice-builder__layout { grid-template-columns: 1fr; }
}
@media (max-width: 760px) {
    .pu-tool__grid--3 { grid-template-columns: 1fr; }
    .pu-invoice-builder__topbar { align-items: flex-start; flex-direction: column; }
    .pu-invoice-preview-heading { align-items: flex-start; flex-direction: column; }
    .pu-invoice-form-section { padding: 16px; }
    .pu-invoice-form-section__heading { flex-direction: column; }
    .pu-invoice-line-item { grid-template-columns: minmax(0, 1fr) 70px 100px 36px; }
    .pu-invoice-line-item__description { grid-column: 1 / -1; }
    .pu-invoice-line-item__amount { grid-column: 1 / 4; padding: 0; display: flex; justify-content: space-between; align-items: center; }
    .pu-invoice-line-item__remove { grid-column: 4; grid-row: 2; }
    .pu-invoice-preview { padding: 20px; }
    .pu-invoice-preview__top { flex-direction: column; }
    .pu-invoice-preview__title-block { text-align: left; }
    .pu-invoice-preview__meta-grid { grid-template-columns: 1fr; }
    .pu-invoice-preview__dates { grid-column: auto; }
    .pu-invoice-preview__dates dl { grid-template-columns: repeat(2, minmax(0, 1fr)); }
    .pu-invoice-preview__summary-area { grid-template-columns: 1fr; }
    .pu-invoice-preview__totals { width: 100%; }
    .pu-invoice-preview-actions { align-items: stretch; flex-direction: column; }
    .pu-invoice-preview-actions button { width: 100%; }
    .pu-invoice-preview-actions small { text-align: left; }
}
@media (max-width: 480px) {
    .pu-invoice-logo-field { grid-template-columns: 1fr; }
    .pu-invoice-line-item { grid-template-columns: minmax(0, 1fr) 36px; }
    .pu-invoice-line-item label:not(.pu-invoice-line-item__description) { grid-column: 1; }
    .pu-invoice-line-item__remove { grid-column: 2; grid-row: 2; align-self: end; }
    .pu-invoice-line-item__amount { grid-column: 1 / -1; }
}

@media print {
    @page { size: A4 portrait; margin: 0; }
    body.pu-printing-invoice { margin: 0 !important; padding: 0 !important; background: #fff !important; }
    body.pu-printing-invoice > *:not(.pu-invoice-print-sheet) { display: none !important; }
    body.pu-printing-invoice .pu-invoice-print-sheet {
        display: block !important;
        width: 100% !important;
        min-height: 100vh !important;
        margin: 0 !important;
        padding: 15mm 15mm 13mm !important;
        border: 0 !important;
        border-radius: 0 !important;
        box-shadow: none !important;
        background: #fff !important;
        color: #111827 !important;
        box-sizing: border-box !important;
        overflow: visible !important;
        font-size: 9.5pt !important;
    }
    body.pu-printing-invoice .pu-invoice-print-sheet,
    body.pu-printing-invoice .pu-invoice-print-sheet * {
        -webkit-print-color-adjust: exact !important;
        print-color-adjust: exact !important;
    }
    body.pu-printing-invoice .pu-invoice-print-sheet .pu-invoice-preview__brand img { width: 30mm !important; height: 18mm !important; }
    body.pu-printing-invoice .pu-invoice-print-sheet .pu-invoice-preview__title-block strong { font-size: 24pt !important; }
    body.pu-printing-invoice .pu-invoice-print-sheet .pu-invoice-preview__dates dl { grid-template-columns: repeat(4, minmax(0, 1fr)) !important; }
    body.pu-printing-invoice .pu-invoice-print-sheet .pu-invoice-preview__items { overflow: visible !important; }
    body.pu-printing-invoice .pu-invoice-print-sheet .pu-invoice-preview__items table { min-width: 0 !important; }
    body.pu-printing-invoice .pu-invoice-print-sheet .pu-invoice-preview__items thead { display: table-header-group; }
    body.pu-printing-invoice .pu-invoice-print-sheet .pu-invoice-preview__items tr { break-inside: avoid; page-break-inside: avoid; }
    body.pu-printing-invoice .pu-invoice-print-sheet .pu-invoice-preview__summary-area { grid-template-columns: minmax(0, 1fr) 62mm !important; }
    body.pu-printing-invoice .pu-invoice-print-sheet .pu-invoice-preview__grand-total strong { color: #172033 !important; }
    body.pu-printing-invoice .pu-invoice-print-sheet .pu-invoice-preview__terms,
    body.pu-printing-invoice .pu-invoice-print-sheet .pu-invoice-preview__message,
    body.pu-printing-invoice .pu-invoice-print-sheet .pu-invoice-preview__totals { break-inside: avoid; page-break-inside: avoid; }
}