:root {
            /* Text — light on dark */
            --ink: #f0f4ff;
            --ink-soft: #b8c4d8;
            --ink-muted: #7a8899;

            /* Field surfaces — clearly visible on dark bg */
            --field-bg: rgba(255, 255, 255, 0.10);
            --field-bg-focus: rgba(255, 255, 255, 0.16);
            --field-border: rgba(255, 255, 255, 0.35);
            --field-border-focus: #4f8ef7;
            --field-text: #e8eef7;

            /* Card surfaces */
            --surface: rgba(255, 255, 255, 0.06);
            --surface-alt: rgba(255, 255, 255, 0.12);
            --rule: rgba(255, 255, 255, 0.20);

            /* Accents */
            --accent: #4f8ef7;
            --accent-light: rgba(79, 142, 247, 0.15);
            --danger: #f87171;
            --success: #4ade80;

            --radius: 6px;
            --radius-lg: 14px;
        }

        /* ─── PAGE WRAPPER ─── */
        .invoice-page {
            max-width: 860px;
            margin: 5rem auto 6rem;
            padding: 0 1.5rem;
            font-family: 'DM Sans', sans-serif;
            color: var(--ink);
        }

        /* ─── HEADER STRIP ─── */
        .inv-header {
            display: flex;
            align-items: flex-start;
            justify-content: space-between;
            padding-bottom: 1.5rem;
            border-bottom: 1px solid var(--rule);
            margin-bottom: 2rem;
        }

        .inv-header-left h1 {
            font-family: 'DM Serif Display', serif;
            font-size: 3rem;
            line-height: 1;
            letter-spacing: -.02em;
            margin: 0 0 .25rem;
            color: #ffffff !important;
        }

        .inv-header-left p {
            font-family: 'JetBrains Mono', monospace;
            font-size: .72rem;
            color: var(--ink-muted);
            margin: 0;
        }

        .inv-id-block {
            text-align: right;
        }

        .inv-id-block .inv-number {
            font-family: 'JetBrains Mono', monospace;
            font-size: .85rem;
            font-weight: 500;
            color: var(--ink-soft);
            background: var(--surface-alt);
            border: 1px solid var(--rule);
            border-radius: var(--radius);
            padding: .35rem .7rem;
            display: inline-block;
            margin-bottom: .4rem;
        }

        .inv-id-block .inv-date {
            font-size: .78rem;
            color: var(--ink-muted);
            display: block;
        }

        /* ─── SECTION LABEL ─── */
        .section-label {
            font-size: .65rem;
            font-weight: 600;
            letter-spacing: .12em;
            text-transform: uppercase;
            color: var(--ink-muted);
            margin: 2rem 0 .75rem;
            display: flex;
            align-items: center;
            gap: .6rem;
        }

        .section-label::after {
            content: '';
            flex: 1;
            height: 1px;
            background: var(--rule);
        }

        /* ─── GRID LAYOUTS ─── */
        .form-grid {
            display: grid;
            gap: 1rem;
        }

        .form-grid.cols-2 {
            grid-template-columns: 1fr 1fr;
        }

        .form-grid.cols-3 {
            grid-template-columns: 1fr 1fr 1fr;
        }

        @media (max-width: 620px) {

            .form-grid.cols-2,
            .form-grid.cols-3 {
                grid-template-columns: 1fr;
            }
        }

        /* ─── FIELD ─── */
        .field {
            display: flex;
            flex-direction: column;
            gap: .3rem;
        }

        .field label {
            font-size: .78rem;
            font-weight: 600;
            color: var(--ink-soft);
            letter-spacing: .01em;
        }

        .field label .req {
            color: var(--danger);
            margin-left: 2px;
        }

        /* High-specificity overrides — beat styles.css white-input rules */
        .invoice-page .field input,
        .invoice-page .field textarea,
        .invoice-page .field select {
            font-family: 'DM Sans', sans-serif !important;
            font-size: .92rem !important;
            color: #e8eef7 !important;
            background: rgba(255, 255, 255, 0.08) !important;
            border: 1px solid rgba(255, 255, 255, 0.32) !important;
            border-radius: 6px !important;
            padding: .6rem .75rem !important;
            transition: border-color .15s, box-shadow .15s, background .15s;
            outline: none !important;
            width: 100%;
            box-sizing: border-box;
            appearance: none;
            -webkit-appearance: none;
            backdrop-filter: blur(4px);
            -webkit-backdrop-filter: blur(4px);
        }

        .invoice-page .field input::placeholder,
        .invoice-page .field textarea::placeholder {
            color: rgba(255, 255, 255, 0.32) !important;
        }

        .invoice-page .field input[type="date"] {
            color-scheme: dark;
            color: #e8eef7 !important;
        }

        .invoice-page .field select option {
            background: #1a2235 !important;
            color: #e8eef7 !important;
        }

        .invoice-page .field input:focus,
        .invoice-page .field textarea:focus,
        .invoice-page .field select:focus {
            border-color: #4f8ef7 !important;
            background: rgba(255, 255, 255, 0.13) !important;
            box-shadow: 0 0 0 3px rgba(79, 142, 247, 0.22) !important;
        }

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

        /* Select arrow */
        .select-wrap {
            position: relative;
        }

        .select-wrap::after {
            content: '';
            pointer-events: none;
            position: absolute;
            right: .75rem;
            top: 50%;
            transform: translateY(-50%);
            width: 0;
            height: 0;
            border-left: 4px solid transparent;
            border-right: 4px solid transparent;
            border-top: 5px solid var(--ink-muted);
        }

        /* ─── AMOUNT BLOCK ─── */
        .amount-display {
            background: var(--ink);
            color: #1a1a1a;
            border-radius: var(--radius-lg);
            padding: 1.5rem 1.75rem;
            display: flex;
            align-items: baseline;
            gap: .6rem;
            margin-top: 1rem;
        }

        .amount-display .currency-tag {
            font-family: 'JetBrains Mono', monospace;
            font-size: 1rem;
            opacity: .6;
        }

        .amount-display .amount-big {
            font-family: 'DM Serif Display', serif;
            font-size: 2.4rem;
            line-height: 1;
        }

        .amount-display .amount-label {
            margin-left: auto;
            font-size: .72rem;
            opacity: .5;
            letter-spacing: .08em;
            text-transform: uppercase;
        }

        /* ─── LINE ITEMS TABLE ─── */
        .line-items-wrap { margin-top: .5rem; overflow-x: auto; }

        .line-items-table {
            width: 100%;
            border-collapse: collapse;
            font-size: .85rem;
        }
        .line-items-table th {
            text-align: left;
            padding: .5rem .6rem;
            border-bottom: 1px solid var(--rule);
            color: var(--ink-muted);
            font-weight: 500;
            white-space: nowrap;
        }
        .line-items-table td {
            padding: .35rem .4rem;
            border-bottom: 1px solid rgba(255,255,255,0.07);
            vertical-align: middle;
        }
        .line-items-table td input {
            background: var(--field-bg);
            border: 1px solid var(--field-border);
            border-radius: var(--radius);
            color: var(--field-text);
            padding: .3rem .5rem;
            width: 100%;
            font-size: .82rem;
            font-family: inherit;
            box-sizing: border-box;
        }
        .line-items-table td input:focus {
            outline: none;
            border-color: var(--field-border-focus);
            background: var(--field-bg-focus);
        }
        .li-num { text-align: center; color: var(--ink-muted); min-width: 2rem; }
        .li-total-cell {
            font-family: 'JetBrains Mono', monospace;
            font-size: .82rem;
            text-align: right;
            color: var(--ink-soft);
            min-width: 6rem;
            padding-right: .6rem;
        }
        .li-remove-btn {
            background: none;
            border: none;
            color: var(--danger);
            cursor: pointer;
            font-size: 1.1rem;
            line-height: 1;
            padding: .15rem .4rem;
            border-radius: var(--radius);
            opacity: .65;
            transition: opacity .15s;
        }
        .li-remove-btn:hover { opacity: 1; }
        .line-items-footer {
            display: flex;
            align-items: center;
            justify-content: space-between;
            margin-top: .75rem;
            flex-wrap: wrap;
            gap: .5rem;
        }
        .add-row-btn {
            background: var(--accent-light);
            border: 1px solid var(--accent);
            color: var(--accent);
            border-radius: var(--radius);
            padding: .38rem .9rem;
            font-size: .82rem;
            cursor: pointer;
            font-family: inherit;
            transition: background .15s;
        }
        .add-row-btn:hover { background: rgba(79,142,247,0.28); }
        .line-items-grand-total {
            font-size: .88rem;
            color: var(--ink-soft);
        }
        .line-items-grand-total strong {
            font-family: 'JetBrains Mono', monospace;
            color: var(--ink);
            font-size: 1rem;
        }

        /* ─── FILE UPLOAD ─── */
        .file-upload-area {
            border: 1.5px dashed var(--rule);
            border-radius: var(--radius);
            padding: 1.1rem;
            text-align: center;
            cursor: pointer;
            transition: border-color .15s, background .15s;
            position: relative;
            background: var(--field-bg);
        }

        .file-upload-area:hover {
            border-color: var(--accent);
            background: var(--accent-light);
        }

        .file-upload-area input[type="file"] {
            position: absolute;
            inset: 0;
            opacity: 0;
            cursor: pointer;
            width: 100%;
            height: 100%;
        }

        .file-upload-area .file-icon {
            font-size: 1.4rem;
            display: block;
            margin-bottom: .3rem;
        }

        .file-upload-area .file-text {
            font-size: .82rem;
            color: var(--ink-muted);
        }

        .file-upload-area .file-text strong {
            color: var(--accent);
        }

        .file-pill {
            display: none;
            align-items: center;
            gap: .5rem;
            background: var(--accent-light);
            border: 1px solid #bfdbfe;
            border-radius: 20px;
            padding: .35rem .75rem;
            font-size: .8rem;
            color: var(--accent);
            margin-top: .5rem;
            width: fit-content;
        }

        .file-pill button {
            background: none;
            border: none;
            cursor: pointer;
            color: var(--accent);
            font-size: .9rem;
            line-height: 1;
            padding: 0;
            font-weight: 700;
        }

        /* ─── PAYMENT METHOD TABS ─── */
        .method-tabs {
            display: flex;
            gap: .5rem;
            flex-wrap: wrap;
        }

        .method-tab {
            padding: .5rem 1rem;
            border: 1.5px solid var(--rule);
            border-radius: 20px;
            font-size: .82rem;
            font-weight: 500;
            cursor: pointer;
            background: var(--field-bg);
            color: var(--ink-soft);
            transition: all .15s;
            user-select: none;
        }

        .method-tab.active {
            background: var(--accent);
            border-color: var(--accent);
            color: #fff;
        }

        /* Hidden actual select (drives logic) */
        #paymentMethod {
            display: none;
        }

        /* Payment detail panels */
        .payment-panel {
            display: none;
            animation: fadeIn .2s ease;
        }

        .payment-panel.visible {
            display: block;
        }

        @keyframes fadeIn {
            from {
                opacity: 0;
                transform: translateY(4px);
            }

            to {
                opacity: 1;
                transform: none;
            }
        }

        /* ─── DUPLICATE WARNING ─── */
        .dup-warning {
            display: none;
            align-items: center;
            gap: .6rem;
            background: #fef9c3;
            border: 1px solid #fde047;
            border-radius: var(--radius);
            padding: .7rem .9rem;
            font-size: .83rem;
            color: #713f12;
            margin-top: .5rem;
        }

        .dup-warning.show {
            display: flex;
        }

        /* ─── SIGNATURE ─── */
        .signature-pad-wrap {
            border: 1px solid var(--rule);
            border-radius: 8px;
            background: #fff;
            overflow: hidden;
        }

        .signature-pad-wrap canvas {
            display: block;
            width: 100%;
            height: 160px;
            touch-action: none;
            cursor: crosshair;
        }

        .signature-pad-actions {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: .75rem;
            padding: .5rem .75rem;
            border-top: 1px solid var(--rule);
            background: var(--paper-2, #f7f5f0);
        }

        .signature-pad-hint {
            font-size: .75rem;
            color: var(--ink-muted);
        }

        .signature-clear-btn {
            font-size: .78rem;
            padding: .35rem .9rem;
            border: 1px solid var(--rule);
            border-radius: 6px;
            background: #fff;
            color: var(--ink);
            cursor: pointer;
        }

        .signature-clear-btn:hover {
            border-color: var(--accent);
            color: var(--accent);
        }

        .signature-attest {
            display: flex;
            align-items: flex-start;
            gap: .5rem;
            font-size: .82rem;
            color: var(--ink);
            margin-top: .75rem;
            line-height: 1.4;
        }

        .signature-attest input[type="checkbox"] {
            width: auto;
            margin-top: .2rem;
            accent-color: var(--accent);
        }

        /* ─── SUBMIT AREA ─── */
        .submit-area {
            margin-top: 2rem;
            padding-top: 1.5rem;
            border-top: 1px solid var(--rule);
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 1rem;
            flex-wrap: wrap;
        }

        .submit-note {
            font-size: .78rem;
            color: var(--ink-muted);
        }

        .submit-btn {
            padding: .75rem 2rem;
            background: var(--accent);
            color: #fff;
            border: none;
            border-radius: var(--radius);
            font-family: 'DM Sans', sans-serif;
            font-weight: 600;
            font-size: .92rem;
            cursor: pointer;
            transition: opacity .15s, transform .1s;
            letter-spacing: .01em;
        }

        .submit-btn:hover {
            opacity: .85;
        }

        .submit-btn:active {
            transform: scale(.98);
        }

        .submit-btn:disabled {
            opacity: .4;
            cursor: not-allowed;
        }

        /* ─── SUCCESS STATE ─── */
        .success-screen {
            display: none;
            text-align: center;
            padding: 5rem 2rem;
        }

        .success-screen.show {
            display: block;
        }

        .invoice-form-wrap.hide {
            display: none;
        }

        .success-icon {
            width: 64px;
            height: 64px;
            background: #dcfce7;
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            margin: 0 auto 1.5rem;
            font-size: 1.8rem;
        }

        .success-screen h2 {
            font-family: 'DM Serif Display', serif;
            font-size: 1.8rem;
            margin: 0 0 .5rem;
            color: var(--ink);
        }

        .success-screen p {
            color: var(--ink-muted);
            font-size: .92rem;
        }

        .success-screen .new-invoice-btn {
            margin-top: 2rem;
            padding: .65rem 1.5rem;
            border: 1.5px solid var(--rule);
            background: var(--field-bg);
            color: var(--ink);
            border-radius: var(--radius);
            font-family: 'DM Sans', sans-serif;
            font-weight: 600;
            cursor: pointer;
            font-size: .9rem;
            transition: background .15s, border-color .15s;
        }

        .success-screen .new-invoice-btn:hover {
            background: var(--field-bg-focus);
            border-color: var(--accent);
        }

        /* ─── SPINNER ─── */
        .spinner {
            display: inline-block;
            width: 14px;
            height: 14px;
            border: 2px solid rgba(255, 255, 255, .3);
            border-top-color: #fff;
            border-radius: 50%;
            animation: spin .6s linear infinite;
            vertical-align: middle;
            margin-right: .4rem;
        }

        @keyframes spin {
            to {
                transform: rotate(360deg);
            }
        }

        #authUser {
            text-align: right;
            margin: 10px 25px 0 0;
            font-size: 13px;
            opacity: .6;
            font-family: 'DM Sans', sans-serif;
        }

        /* ─── LOOKUP AUTOCOMPLETE ─── */
        .lookup-wrap { position: relative; }
        .lookup-dropdown {
            position: absolute;
            top: calc(100% + 3px);
            left: 0; right: 0;
            background: #1a2235;
            border: 1px solid rgba(255,255,255,.35);
            border-radius: 6px;
            z-index: 300;
            max-height: 210px;
            overflow-y: auto;
            display: none;
            box-shadow: 0 8px 24px rgba(0,0,0,.45);
        }
        .lookup-dropdown.open { display: block; }
        .lookup-item {
            padding: 8px 12px;
            font-size: .84rem;
            cursor: pointer;
            color: #e8eef7;
            border-bottom: 1px solid rgba(255,255,255,.07);
            transition: background .1s;
        }
        .lookup-item:last-child { border-bottom: none; }
        .lookup-item:hover { background: rgba(79,142,247,.25); }
        .lookup-item.muted { color: #7a8899; cursor: default; font-style: italic; }
        .lookup-item.muted:hover { background: none; }
        .lookup-badge {
            display: inline-block;
            font-size: .7rem;
            background: rgba(79,142,247,.2);
            color: #7eb3ff;
            border: 1px solid rgba(79,142,247,.4);
            border-radius: 10px;
            padding: 1px 7px;
            margin-left: 6px;
            vertical-align: middle;
        }

/* === Extracted inline styles === */
.hidden { display: none !important; }
.col-span-all { grid-column: 1 / -1; }
.col-span-2 { grid-column: span 2; }
.mt1 { margin-top: 1rem; }
.panel-note { font-size: .82rem; color: var(--ink-muted); margin: .75rem 0 0; }
.token-error-box { text-align: center; padding: 4rem 2rem; }
.token-error-icon { font-size: 3rem; margin-bottom: 1rem; }
.token-error-title { font-family: 'DM Serif Display', serif; color: var(--ink); }
.token-error-desc { color: var(--ink-muted); max-width: 400px; margin: 0 auto; }
.token-error-footer { margin-top: 1.5rem; font-size: .82rem; color: var(--ink-muted); }
.token-error-link { color: var(--accent); }
.file-pill.show { display: flex; }