*, *::before, *::after { box-sizing: border-box; }

    .of-shell { max-width: 960px; margin: 0 auto; padding: 1.5rem 1.25rem 4rem; }

    .of-card {
        background: #ffffff;
        border: 1px solid #d0d8e0;
        border-radius: 10px;
        padding: 1.25rem 1.5rem;
        margin-bottom: 1rem;
        box-shadow: 0 1px 4px rgba(15,25,35,.07);
    }

    .of-section-title {
        font-size: .95rem;
        font-weight: 700;
        color: #0f1923;
        margin: 0 0 1.1rem;
        padding-bottom: .55rem;
        border-bottom: 2px solid #b8d9f0;
    }

    /* ── Form ────────────────────────────────────────────── */
    .of-row { display: flex; gap: .75rem; align-items: flex-end; flex-wrap: wrap; margin-bottom: .85rem; }

    .of-field { display: flex; flex-direction: column; gap: .3rem; }
    .of-field label { font-size: .8rem; font-weight: 700; color: #0f1923; }
    .of-field input, .of-field select {
        padding: .65rem .9rem; font-size: .9rem; border: 2px solid #d0d8e0; border-radius: 8px;
        background: #ffffff; color: #0f1923; transition: border-color .15s, box-shadow .15s;
    }
    .of-field input:focus, .of-field select:focus { outline: none; border-color: #005fa3; box-shadow: 0 0 0 3px rgba(0,95,163,.15); }
    .of-field .of-helper { font-size: .78rem; font-weight: 600; color: #0f1923; margin: .2rem 0 0; line-height: 1.4; }

    .f-xs  { width: 80px; }
    .f-sm  { width: 110px; }
    .f-md  { width: 160px; }
    .f-lg  { flex: 1; min-width: 160px; }

    /* ── Slider ──────────────────────────────────────────── */
    .slider-wrap { display: flex; align-items: center; gap: .85rem; margin-top: .35rem; }
    .slider-wrap input[type="range"] { flex: 1; accent-color: #005fa3; cursor: pointer; }
    .slider-val { font-size: 1.05rem; font-weight: 800; color: #0f1923; min-width: 44px; text-align: right; font-variant-numeric: tabular-nums; }

    /* ── Currency toggle ─────────────────────────────────── */
    .of-toggle { display: flex; gap: .5rem; flex-wrap: wrap; }
    .of-toggle-btn { padding: .4rem .9rem; font-size: .8rem; font-weight: 700; border: 2px solid #b0bcc8; border-radius: 999px; background: #ffffff; color: #0f1923; cursor: pointer; transition: border-color .15s, background .15s, color .15s; }
    .of-toggle-btn:hover:not(.active) { border-color: #005fa3; background: #e8f4fb; }
    .of-toggle-btn.active { background: #2d3f52; border-color: #2d3f52; color: #ffffff; }

    /* ── Monthly table ───────────────────────────────────── */
    .of-month-table {
        width: 100%;
        border-collapse: collapse;
        font-size: .855rem;
        margin-bottom: .85rem;
    }

    .of-month-table th {
        background: #2d3f52;
        color: #ffffff;
        padding: .55rem .6rem;
        text-align: left;
        font-size: .78rem;
        font-weight: 700;
        white-space: nowrap;
    }

    .of-month-table th:first-child { border-radius: 8px 0 0 0; }
    .of-month-table th:last-child  { border-radius: 0 8px 0 0; }

    .of-month-table td {
        padding: .45rem .55rem;
        border-bottom: 1px solid #d0d8e0;
        vertical-align: middle;
        color: #0f1923;
        font-weight: 600;
    }

    .of-month-table tr:last-child td { border-bottom: none; }
    .of-month-table tr:nth-child(even) td { background: #f0f4f8; }

    .of-month-table input[type="number"],
    .of-month-table input[type="range"] {
        padding: .35rem .5rem;
        font-size: .82rem;
        border: 1.5px solid #b0bcc8;
        border-radius: 6px;
        background: #ffffff;
        color: #0f1923;
        transition: border-color .15s;
    }

    .of-month-table input[type="number"] { width: 70px; }
    .of-month-table input[type="range"]  { width: 100px; accent-color: #005fa3; }
    .of-month-table input:focus { outline: none; border-color: #005fa3; }

    .col-month { min-width: 90px; font-weight: 700; }
    .col-days  { width: 55px; }
    .col-occ   { width: 160px; }
    .col-rate  { width: 100px; }
    .col-rev   { width: 100px; text-align: right; font-variant-numeric: tabular-nums; }
    .col-sold  { width: 80px; text-align: right; }

    .of-rev-cell { font-weight: 700; color: #0f1923; }

    /* ── Buttons ─────────────────────────────────────────── */
    .of-run-btn {
        padding: .75rem 1.5rem; font-size: .95rem; font-weight: 700;
        background: #b8d9f0; color: #0f1923; border: 2px solid #7ec8f0;
        border-radius: 10px; cursor: pointer; transition: background .15s, transform .1s;
        box-shadow: 0 1px 4px rgba(15,25,35,.08);
    }
    .of-run-btn:hover  { background: #90c5e8; }
    .of-run-btn:active { transform: scale(.97); }

    /* ── Results header ──────────────────────────────────── */
    .of-results-header {
        background: #2d3f52; border-radius: 16px; padding: 1.5rem 1.75rem;
        margin-bottom: 1.25rem; display: flex; align-items: center;
        justify-content: space-between; flex-wrap: wrap; gap: .75rem;
        box-shadow: 0 4px 16px rgba(15,25,35,.12);
    }
    .of-results-header h2 { font-size: 1.25rem; font-weight: 800; margin: 0 0 .2rem; color: #ffffff; }
    .of-results-header p  { margin: 0; font-size: .875rem; color: #b8d0e8; }

    /* ── Result cards ────────────────────────────────────── */
    .results-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(150px, 1fr)); gap: .75rem; margin-bottom: .85rem; }

    .result-card { border-radius: 8px; padding: .9rem 1rem; background: #b8d9f0; border: 1px solid #5da8d8; }
    .result-card .result-label { color: #0f1923; font-size: .75rem; font-weight: 700; margin: 0 0 .25rem; }
    .result-card .result-value { color: #0f1923; font-size: 1.35rem; font-weight: 800; margin: 0; font-variant-numeric: tabular-nums; }
    .result-card.dark { background: #2d3f52; border-color: #1e2d3d; }
    .result-card.dark .result-label { color: #b8d0e8; }
    .result-card.dark .result-value { color: #ffffff; }
    .result-card.good { background: #a8d8b8; border-color: #3d9a5a; }
    .result-card.warn { background: #f0d080; border-color: #b07800; }
    .result-card.good .result-label, .result-card.good .result-value,
    .result-card.warn .result-label, .result-card.warn .result-value { color: #0f1923; }

    /* ── Annual summary table ────────────────────────────── */
    .of-summary-table {
        width: 100%;
        border-collapse: collapse;
        font-size: .855rem;
    }

    .of-summary-table th {
        background: #2d3f52; color: #ffffff;
        padding: .55rem .7rem; text-align: left;
        font-size: .78rem; font-weight: 700;
    }

    .of-summary-table th:first-child { border-radius: 6px 0 0 0; }
    .of-summary-table th:last-child  { border-radius: 0 6px 0 0; }

    .of-summary-table td {
        padding: .5rem .7rem; border-bottom: 1px solid #d0d8e0;
        color: #0f1923; font-weight: 600; vertical-align: middle;
    }

    .of-summary-table tr:last-child td { border-bottom: none; }
    .of-summary-table tr:nth-child(even) td { background: #f0f4f8; }
    .of-summary-table .total-row td { background: #2d3f52 !important; color: #ffffff !important; font-weight: 800; }

    .of-occ-bar-wrap { display: inline-block; width: 80px; height: 8px; background: #d0d8e0; border-radius: 999px; overflow: hidden; vertical-align: middle; margin-right: .4rem; }
    .of-occ-bar { height: 100%; border-radius: 999px; }

    /* ── Badge / divider / note ──────────────────────────── */
    .of-badge { display: inline-block; font-size: .75rem; font-weight: 700; padding: .25rem .7rem; border-radius: 999px; flex-shrink: 0; }
    .badge-ok   { background: #a8d8b8; color: #0f1923; border: 1px solid #3d9a5a; }
    .badge-warn { background: #f0d080; color: #0f1923; border: 1px solid #b07800; }
    .badge-info { background: #b8d9f0; color: #0f1923; border: 1px solid #5da8d8; }

    .of-divider { border: none; border-top: 1px solid #d0d8e0; margin: 1rem 0; }
    .of-note { font-size: .8rem; font-weight: 700; color: #0f1923 !important; margin: .5rem 0 0; line-height: 1.5; }

    /* ── Explainer ───────────────────────────────────────── */
    .of-explainer { border: 1px solid #d0d8e0; border-radius: 10px; margin-top: 1.5rem; background: #ffffff; overflow: hidden; }
    .of-explainer-head { display: flex; align-items: center; justify-content: space-between; width: 100%; padding: .9rem 1.25rem; background: #ffffff; border: none; cursor: pointer; font-size: .95rem; font-weight: 700; color: #0f1923; text-align: left; transition: background .15s; }
    .of-explainer-head:hover { background: #f0f4f8; }
    .of-explainer-head svg { width: 18px; height: 18px; flex-shrink: 0; transition: transform .2s; }
    .of-explainer-head[aria-expanded="true"] svg { transform: rotate(180deg); }
    .of-explainer-body { display: none; padding: 1rem 1.25rem 1.25rem; border-top: 1px solid #d0d8e0; }
    .of-explainer-body h3 { font-size: .9rem; font-weight: 700; margin: 1rem 0 .25rem; color: #0f1923; }
    .of-explainer-body h3:first-child { margin-top: 0; }
    .of-explainer-body p  { font-size: .875rem; margin: 0 0 .3rem; line-height: 1.55; color: #0f1923; }

    .hc-disclaimer { margin-top: 1.5rem; padding: .9rem 1.1rem; background: #b8d9f0; border: 1px solid #5da8d8; border-radius: 10px; font-size: .8rem; line-height: 1.5; }
    .hc-disclaimer p { color: #0f1923; margin: 0; font-weight: 600; }

    /* ── Card-scoped overrides ───────────────────────────── */
    .of-card label, .of-card .of-section-title, .of-card .of-helper,
    .of-card input, .of-card select, .of-month-table td,
    .of-summary-table td, .of-card .slider-val,
    .of-explainer-body p, .of-explainer-body h3, .of-explainer-head,
    .hc-disclaimer p { color: #0f1923 !important; }

    .of-results-header h2 { color: #ffffff !important; }
    .of-results-header p  { color: #b8d0e8 !important; }
    .of-toggle-btn.active { color: #ffffff !important; }
    .result-card .result-label, .result-card .result-value { color: #0f1923 !important; }
    .result-card.dark .result-label { color: #b8d0e8 !important; }
    .result-card.dark .result-value { color: #ffffff !important; }
    .of-summary-table .total-row td { color: #ffffff !important; }

    @media (max-width: 640px) {
        .col-sold, .col-days { display: none; }
        .of-row { flex-direction: column; align-items: stretch; }
        .results-grid { grid-template-columns: 1fr 1fr; }
        .of-occ-bar-wrap { display: none; }
    }

    @media print {
        nav, header, footer, .of-run-btn, .of-explainer, .hc-disclaimer,
        .of-card:first-of-type { display: none !important; }
        .of-results-header { background: #2d3f52 !important; -webkit-print-color-adjust: exact; print-color-adjust: exact; }
    }