/* ============================================
   PROFORMA INVOICE GENERATOR - Dedicated Stylesheet
   Ray2Volt Solar Toolbox - Brutalist Design
   Matches Tax Invoice / Payment Receipt styling
   ============================================ */

/* Google Sans Flex for UI elements */
@import url('https://fonts.googleapis.com/css2?family=Google+Sans+Flex:wght@400;500;600;700&display=swap');

/* ============================================
   FORM SECTION - BRUTALIST STYLING
   ============================================ */

/* --- Page Header --- */
.pi-page-header {
    margin-bottom: 1.5rem;
}

.pi-page-header h1 {
    font-size: 1.75rem;
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: 0.25rem;
}

.pi-page-header p {
    font-size: 0.95rem;
    color: var(--text-secondary);
}

/* --- Form Cards --- */
.pi-form-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 1.5rem;
    margin-bottom: 1.5rem;
}

.pi-form-card {
    background: var(--bg-card);
    border: 1px solid var(--border-medium);
    border-radius: 2px;
    padding: 1.5rem;
}

.pi-section-title {
    font-size: 1rem;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 1.25rem;
    padding-bottom: 0.75rem;
    border-bottom: 1px solid var(--border-light);
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.pi-section-title .icon {
    width: 20px;
    height: 20px;
    color: var(--primary);
}

/* --- Input Groups --- */
.pi-input-group {
    margin-bottom: 1.25rem;
}

.pi-input-group:last-child {
    margin-bottom: 0;
}

.pi-input-group label {
    display: block;
    font-size: 0.875rem;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 0.5rem;
}

/* --- Input Fields --- */
.pi-input-field {
    width: 100%;
    padding: 0.75rem 1rem;
    font-size: 0.95rem;
    font-family: 'Google Sans Flex', 'Google Sans', sans-serif;
    border: 1px solid var(--border-medium);
    border-radius: 2px;
    background: var(--bg-card);
    color: var(--text-primary);
    transition: all 0.1s ease;
    box-sizing: border-box;
}

.pi-input-field:focus {
    outline: none;
    border-color: var(--primary);
    box-shadow: 0 0 0 3px var(--primary-light);
    background: #fff;
}

textarea.pi-input-field {
    resize: vertical;
    min-height: 70px;
}

.pi-input-hint {
    display: block;
    font-size: 0.8rem;
    color: var(--text-muted);
    margin-top: 0.4rem;
}

/* --- Items Section Card --- */
.pi-items-card {
    background: var(--bg-card);
    border: 1px solid var(--border-medium);
    border-radius: 2px;
    padding: 1.5rem;
    margin-bottom: 1.5rem;
}

.pi-items-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 1rem;
    padding-bottom: 0.75rem;
    border-bottom: 1px solid var(--border-light);
}

.pi-items-header h3 {
    font-size: 1rem;
    font-weight: 600;
    color: var(--text-primary);
    margin: 0;
}

.pi-items-header p {
    font-size: 0.85rem;
    color: var(--text-muted);
    margin: 0;
}

/* --- Item Rows --- */
.pi-item-row {
    background: var(--bg-body);
    border: 1px solid var(--border-light);
    border-radius: 2px;
    padding: 1rem;
    margin-bottom: 1rem;
}

.pi-item-row:last-of-type {
    margin-bottom: 0;
}

.pi-item-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 1rem;
    padding-bottom: 0.5rem;
    border-bottom: 1px solid var(--border-light);
}

.pi-item-number {
    font-weight: 600;
    color: var(--primary);
    font-size: 0.9rem;
    font-family: 'Google Sans Flex', 'Google Sans', sans-serif;
}

.pi-btn-remove {
    width: 28px;
    height: 28px;
    border: 1px solid var(--border-medium);
    border-radius: 2px;
    background: var(--bg-card);
    color: var(--text-muted);
    cursor: pointer;
    font-size: 1.25rem;
    line-height: 1;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all 0.1s ease;
}

.pi-btn-remove:hover {
    background: #fee2e2;
    border-color: #ef4444;
    color: #ef4444;
}

/* --- Item Fields Grid --- */
.pi-item-fields {
    display: grid;
    grid-template-columns: 1fr 80px 70px 130px 80px;
    gap: 1rem;
    align-items: end;
}

.pi-item-fields .pi-input-group {
    margin-bottom: 0;
}

.pi-item-fields .pi-input-group label {
    font-size: 0.8rem;
    font-weight: 500;
}

.pi-item-fields select.pi-input-field {
    padding: 0.6rem;
    height: auto;
}

/* --- Add Item Button --- */
.pi-btn-add {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.75rem 1.25rem;
    margin-top: 1rem;
    font-size: 0.875rem;
    font-weight: 500;
    font-family: 'Google Sans Flex', 'Google Sans', sans-serif;
    border: 1px dashed var(--primary);
    border-radius: 2px;
    background: var(--primary-light);
    color: var(--primary);
    cursor: pointer;
    transition: all 0.1s ease;
}

.pi-btn-add:hover {
    background: var(--primary);
    color: #fff;
    border-style: solid;
}

/* --- Action Buttons --- */
.pi-actions {
    display: flex;
    justify-content: center;
    gap: 1rem;
    margin-top: 2rem;
    margin-bottom: 2rem;
}

.pi-btn-primary {
    padding: 0.875rem 2rem;
    font-size: 1rem;
    font-weight: 600;
    font-family: 'Google Sans Flex', 'Google Sans', sans-serif;
    border: 1px solid var(--primary);
    border-radius: 2px;
    background: var(--primary);
    color: #fff;
    cursor: pointer;
    transition: all 0.1s ease;
}

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

.pi-btn-secondary {
    padding: 0.875rem 2rem;
    font-size: 1rem;
    font-weight: 600;
    font-family: 'Google Sans Flex', 'Google Sans', sans-serif;
    border: 1px solid var(--border-medium);
    border-radius: 2px;
    background: var(--bg-card);
    color: var(--text-primary);
    cursor: pointer;
    transition: all 0.1s ease;
}

.pi-btn-secondary:hover {
    background: var(--bg-hover);
    border-color: var(--primary);
    color: var(--primary);
}

/* ============================================
   PROFORMA INVOICE PREVIEW - MINIMALIST BRUTALIST
   Black text, light cyan accents, print-friendly
   ============================================ */

/* Main Invoice Container */
#proformaInvoicePreview {
    display: none;
    width: 210mm;
    min-height: 297mm;
    margin: 2rem auto;
    padding: 10mm;
    background: #fff;
    border: 1px solid #d0d0d0;
    border-radius: 2px;
    font-family: 'Google Sans Flex', 'Nunito Sans', sans-serif;
    font-size: 10pt;
    color: #1a1a1a;
    position: relative;
    box-sizing: border-box;
}

#proformaInvoicePreview.visible {
    display: block;
}

/* ---- Header Section ---- */
.invoice-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 0 0 12px 0;
    margin-bottom: 16px;
    border-bottom: 2px solid #1a1a1a;
}

.invoice-title-section {
    display: flex;
    flex-direction: column;
    gap: 2px;
}

.invoice-title-section h1 {
    font-size: 18pt;
    font-weight: 700;
    letter-spacing: 1px;
    margin: 0;
    color: #1a1a1a;
}

.invoice-title-section p {
    font-size: 10pt;
    margin: 0;
    font-weight: 600;
    color: #333;
    font-family: 'Google Sans Flex', monospace;
    letter-spacing: 0.5px;
}

.invoice-logo-section {
    text-align: right;
}

.invoice-logo {
    height: 40px;
    width: auto;
}

/* ---- Unified Table (Info + Items) ---- */
.invoice-unified-table {
    width: 100%;
    border-collapse: collapse;
    margin: 0 0 14px 0;
    table-layout: fixed;
    border: 1px solid #d0d0d0;
    border-radius: 2px;
}

.invoice-unified-table .info-header-row td,
.invoice-unified-table .info-header-cell {
    background: #E8F4FA;
    color: #1a1a1a;
    font-weight: 600;
    text-align: left;
    padding: 10px 12px;
    font-size: 9pt;
    letter-spacing: 0.3px;
    border: 1px solid #d0d0d0;
}

.invoice-unified-table .info-content-row td {
    vertical-align: top;
    padding: 12px;
    border: 1px solid #d0d0d0;
    font-size: 9pt;
    line-height: 1.6;
    background: #fff;
    color: #1a1a1a;
}

.invoice-unified-table .from-cell,
.invoice-unified-table .to-cell {
    background-color: #fff;
    text-align: left;
}

.invoice-unified-table .from-cell p,
.invoice-unified-table .to-cell p {
    margin: 3px 0;
    color: #1a1a1a;
}

.invoice-info-label {
    font-weight: 600;
    color: #1a1a1a;
}

/* Items Header Row */
.invoice-unified-table .items-header-row th {
    background: #E8F4FA;
    color: #1a1a1a;
    font-weight: 600;
    padding: 10px 6px;
    border: 1px solid #d0d0d0;
    text-align: center;
    font-size: 8pt;
    letter-spacing: 0.3px;
}

/* Items Body Cells */
.invoice-unified-table tbody td {
    padding: 10px 6px;
    border: 1px solid #d0d0d0;
    text-align: center;
    font-size: 9pt;
    vertical-align: middle;
    background: #fff;
    color: #1a1a1a;
}

.invoice-unified-table tbody tr:nth-child(even) td {
    background: #fafafa;
}

.invoice-unified-table td.desc-cell {
    text-align: left;
    padding-left: 10px;
    font-weight: 500;
}

/* Grand Total Row */
.invoice-unified-table .grand-total-row td {
    background: #E8F4FA !important;
    font-weight: 700;
    font-size: 9pt;
    padding: 12px 6px;
    color: #1a1a1a !important;
    border: 1px solid #d0d0d0 !important;
}

/* ---- Amount in Words ---- */
.invoice-amount-words {
    margin: 14px 0;
    font-size: 9pt;
    padding: 10px 12px;
    background: #fafafa;
    border: 1px solid #d0d0d0;
    border-left: 3px solid #a8d4e6;
    border-radius: 2px;
    color: #1a1a1a;
}

.invoice-amount-words strong {
    font-weight: 700;
    color: #1a1a1a;
}

/* ---- Bank Details Box ---- */
.invoice-bank-section {
    border: 1px solid #d0d0d0;
    border-radius: 2px;
    margin: 18px 0;
}

.invoice-bank-section h4 {
    background: #E8F4FA;
    margin: 0;
    padding: 10px 12px;
    font-size: 9pt;
    font-weight: 600;
    color: #1a1a1a;
    letter-spacing: 0.3px;
    border-bottom: 1px solid #d0d0d0;
}

.invoice-bank-grid {
    display: grid;
    grid-template-columns: 130px 1fr;
    gap: 5px 10px;
    padding: 12px;
    font-size: 9pt;
    background: #fff;
}

.invoice-bank-grid .bank-label {
    font-weight: 600;
    color: #555;
}

.invoice-bank-grid .bank-value {
    font-weight: 500;
    color: #1a1a1a;
}

/* ---- Signature Section ---- */
.invoice-signature {
    position: absolute;
    bottom: 25mm;
    right: 10mm;
    text-align: right;
}

.invoice-signature .signature-name {
    font-weight: 700;
    font-size: 11pt;
    color: #1a1a1a;
}

.invoice-signature .signature-title {
    font-size: 9pt;
    color: #555;
}

/* ---- Footer ---- */
.invoice-footer-line {
    position: absolute;
    bottom: 10mm;
    left: 10mm;
    right: 10mm;
    height: 2px;
    background: #d0d0d0;
    border-radius: 2px;
}

/* System Generated Notice */
.system-generated-notice {
    margin-top: 18px;
    text-align: center;
    font-size: 8pt;
    color: #666;
    font-style: italic;
    padding: 8px;
    background: #fafafa;
    border: 1px solid #e0e0e0;
    border-radius: 2px;
}

/* ============================================
   RESPONSIVE STYLES
   ============================================ */

/* Tablet */
@media screen and (max-width: 1024px) {
    .pi-form-grid {
        grid-template-columns: 1fr;
    }

    .pi-item-fields {
        grid-template-columns: 1fr 1fr;
    }

    .pi-item-fields .pi-input-group:first-child {
        grid-column: span 2;
    }
}

/* Mobile */
@media screen and (max-width: 768px) {
    .pi-page-header {
        margin-bottom: 1rem;
    }

    .pi-page-header h1 {
        font-size: 1.5rem;
    }

    .pi-page-header p {
        font-size: 0.875rem;
    }

    .pi-form-card,
    .pi-items-card {
        padding: 1rem;
    }

    .pi-section-title {
        font-size: 0.9rem;
        margin-bottom: 1rem;
    }

    .pi-input-field {
        padding: 0.875rem 1rem;
        font-size: 1rem;
    }

    .pi-item-fields {
        grid-template-columns: 1fr;
    }

    .pi-item-fields .pi-input-group {
        grid-column: 1;
    }

    .pi-actions {
        flex-direction: column;
    }

    .pi-btn-primary,
    .pi-btn-secondary {
        width: 100%;
    }

    #proformaInvoicePreview {
        width: 100%;
        min-height: auto;
        margin: 1rem auto;
        padding: 15px;
        font-size: 9pt;
        overflow-x: auto;
    }

    .invoice-header {
        flex-direction: column;
        align-items: center;
        text-align: center;
        gap: 10px;
    }

    .invoice-title-section h1 {
        font-size: 14pt;
    }

    .invoice-logo {
        height: 30px;
    }

    .invoice-unified-table {
        min-width: 480px;
    }

    .invoice-signature {
        position: static;
        text-align: right;
        margin-top: 30px;
    }

    .invoice-footer-line {
        position: static;
        margin-top: 20px;
    }
}

/* Small Mobile */
@media screen and (max-width: 480px) {

    .pi-form-card,
    .pi-items-card {
        padding: 0.875rem;
    }

    .pi-btn-remove {
        width: 24px;
        height: 24px;
        font-size: 1rem;
    }

    #proformaInvoicePreview {
        padding: 10px;
        font-size: 8pt;
    }

    .invoice-title-section h1 {
        font-size: 12pt;
        letter-spacing: 1px;
    }

    .invoice-unified-table {
        font-size: 7.5pt;
    }

    .invoice-unified-table .info-header-row td,
    .invoice-unified-table .info-header-cell {
        padding: 6px 8px;
        font-size: 7.5pt;
    }

    .invoice-bank-grid {
        grid-template-columns: 1fr;
        gap: 2px;
    }

    .invoice-bank-grid .bank-label {
        margin-top: 5px;
    }
}

/* ============================================
   PRINT STYLES
   ============================================ */
@media print {
    body * {
        visibility: hidden;
    }

    #proformaInvoicePreview,
    #proformaInvoicePreview * {
        visibility: visible;
    }

    #proformaInvoicePreview {
        position: absolute;
        left: 0;
        top: 0;
        width: 100%;
        height: auto;
        margin: 0;
        padding: 10mm;
        border: none;
        border-radius: 0;
        background: #fff;
        display: block !important;
    }

    /* Light cyan for headers, black text */
    .invoice-unified-table .info-header-row td,
    .invoice-unified-table .items-header-row th {
        background: #E8F4FA !important;
        color: #1a1a1a !important;
    }

    .invoice-unified-table .grand-total-row td {
        background: #E8F4FA !important;
        color: #1a1a1a !important;
    }

    .invoice-amount-words {
        background: #fafafa !important;
        border-left: 3px solid #a8d4e6 !important;
    }

    .invoice-bank-section h4 {
        background: #E8F4FA !important;
        color: #1a1a1a !important;
    }

    .invoice-footer-line {
        background: #d0d0d0 !important;
    }

    .invoice-unified-table {
        table-layout: fixed !important;
        width: 100% !important;
    }

    .invoice-unified-table td {
        word-wrap: break-word !important;
        overflow-wrap: break-word !important;
        white-space: normal !important;
        overflow: hidden !important;
    }

    .no-print-area {
        display: none !important;
    }

    @page {
        size: A4;
        margin: 0;
    }

    * {
        -webkit-print-color-adjust: exact !important;
        print-color-adjust: exact !important;
    }
}