:root {
    --bp-page: #FFFFFF;
    --bp-header: #2F5597;
    --bp-header-text: #FFFFFF;
    --bp-thead: #4472C4;
    --bp-thead-text: #FFFFFF;
    --bp-band: #D9E1F2;
    --bp-border: #BFCBE3;
    --bp-ink: #1F2937;
    --bp-ink-soft: #6B7280;
    --bp-forest: #1E7B34;
    --bp-rust: #C00000;
    --bp-rust-bg: #FCE4E4;
}

.bp-root { color: var(--bp-ink); background: var(--bp-page); font-family: -apple-system, "Segoe UI", Roboto, Helvetica, Arial, sans-serif; font-size: 14px; max-width: 1100px; margin: 0 auto; }
.bp-loading, .bp-empty { text-align: center; padding: 40px; color: var(--bp-ink-soft); }

.bp-topbar { background: var(--bp-header); display: flex; justify-content: space-between; align-items: center; padding: 0 16px; flex-wrap: wrap; border-radius: 4px 4px 0 0; }
.bp-tabs { display: flex; flex-wrap: wrap; }
.bp-tab { background: none; border: none; color: var(--bp-header-text); opacity: 0.75; padding: 14px 16px; font-size: 14px; font-weight: 600; cursor: pointer; }
.bp-tab.active { opacity: 1; border-bottom: 3px solid #fff; }
.bp-user-info { color: var(--bp-header-text); font-size: 13px; }

.bp-card { background: #fff; border: 1px solid var(--bp-border); border-radius: 4px; margin-bottom: 18px; }
.bp-card h3 { margin: 0; font-size: 15px; font-weight: bold; background: var(--bp-header); color: var(--bp-header-text); padding: 10px 16px; border-radius: 4px 4px 0 0; }

.bp-toolbar { display: flex; justify-content: space-between; align-items: center; margin-bottom: 14px; }

.bp-table { width: 100%; border-collapse: collapse; }
.bp-table th { text-align: left; padding: 9px 12px; font-size: 12px; color: var(--bp-thead-text); background: var(--bp-thead); border: 1px solid var(--bp-border); }
.bp-table td { padding: 8px 12px; border: 1px solid var(--bp-border); font-size: 13px; }
.bp-table td.num, .bp-table th.num { text-align: right; }
.bp-text { color: var(--bp-ink); }

.bp-metrics { display: flex; border: 1px solid var(--bp-border); border-radius: 4px; overflow: hidden; margin-bottom: 18px; background: #fff; }
.bp-metric-card { flex: 1; padding: 16px; border-right: 1px solid var(--bp-border); }
.bp-metric-card:last-child { border-right: none; }
.bp-metric-label { font-size: 12px; color: var(--bp-ink-soft); margin-bottom: 4px; }
.bp-metric-value { font-size: 22px; font-weight: bold; }

.bp-bar-track { background: var(--bp-band); border-radius: 3px; height: 8px; overflow: hidden; }
.bp-bar-fill { background: var(--bp-forest); height: 100%; }
.bp-bar-fill.over { background: var(--bp-rust); }
.bp-bar-caption { font-size: 11px; color: var(--bp-ink-soft); margin-top: 3px; }

.bp-btn { display: inline-block; background: #fff; border: 1px solid var(--bp-border); border-radius: 4px; padding: 8px 14px; font-size: 13px; font-weight: 600; color: var(--bp-ink); cursor: pointer; }
.bp-btn-primary { background: var(--bp-header); border-color: var(--bp-header); color: #fff; }
.bp-btn[disabled] { opacity: 0.6; cursor: not-allowed; }
.bp-btn-link { background: none; color: var(--bp-header); font-size: 12px; font-weight: bold; cursor: pointer; padding: 5px 10px; border: 1px solid var(--bp-border); border-radius: 4px; margin-left: 6px; }
.bp-btn-link.danger { color: var(--bp-rust); border-color: var(--bp-rust); background: var(--bp-rust-bg); }

.bp-form-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 14px; background: var(--bp-band); padding: 16px; border-radius: 4px; margin-bottom: 14px; }
.bp-field { display: flex; flex-direction: column; }
.bp-span-2 { grid-column: 1 / -1; }
.bp-label { font-size: 12px; font-weight: bold; color: var(--bp-ink-soft); margin-bottom: 4px; }
.bp-input, .bp-select { padding: 7px 8px; border: 1px solid var(--bp-border); border-radius: 3px; font-size: 13px; font-family: inherit; }
.bp-form-actions { grid-column: 1 / -1; display: flex; gap: 10px; }

.bp-modal-overlay { position: fixed; inset: 0; background: rgba(0, 0, 0, 0.5); display: flex; align-items: center; justify-content: center; z-index: 999999; padding: 16px; }
.bp-modal { background: #fff; border-radius: 6px; padding: 24px; max-width: 380px; width: 100%; box-shadow: 0 10px 40px rgba(0, 0, 0, 0.25); }
.bp-modal h3 { margin: 0 0 10px; font-size: 20px; color: var(--bp-header); }
.bp-modal .bp-field { margin-bottom: 14px; }
.bp-modal .bp-form-actions { grid-column: unset; margin: 0; }

.bp-demo-locked > *:not(.bp-modal-overlay) { pointer-events: none; filter: blur(2px); user-select: none; }

.bp-calc-toggle {
    position: fixed;
    bottom: 24px;
    left: 24px;
    z-index: 998;
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 10px 16px 10px 12px;
    border-radius: 8px;
    background: var(--bp-header);
    border: none;
    color: #fff;
    font-size: 13px;
    font-weight: bold;
    cursor: pointer;
    box-shadow: 0 6px 20px rgba(0, 0, 0, 0.25);
}
.bp-calc-toggle svg { width: 18px; height: 18px; flex-shrink: 0; }
.bp-calc-panel {
    position: fixed;
    bottom: 24px;
    left: 24px;
    z-index: 998;
    width: 220px;
    background: #fff;
    border-radius: 8px;
    box-shadow: 0 10px 40px rgba(0, 0, 0, 0.3);
    overflow: hidden;
}
.bp-calc-header {
    background: var(--bp-header);
    color: #fff;
    padding: 8px 12px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    font-size: 13px;
    font-weight: bold;
    cursor: move;
    touch-action: none;
}
.bp-calc-header button { background: none; border: none; color: #fff; font-size: 18px; cursor: pointer; line-height: 1; }
.bp-calc-display {
    padding: 14px 12px;
    text-align: right;
    font-size: 24px;
    font-family: monospace;
    background: var(--bp-band);
    border-bottom: 1px solid var(--bp-border);
    overflow-x: auto;
    white-space: nowrap;
}
.bp-calc-keys { display: grid; grid-template-columns: repeat(4, 1fr); gap: 1px; background: var(--bp-border); }
.bp-calc-key { background: #fff; border: none; padding: 14px 0; font-size: 15px; cursor: pointer; }
.bp-calc-key.op { background: var(--bp-band); font-weight: bold; color: var(--bp-header); }
.bp-calc-key.eq { background: var(--bp-header); color: #fff; }
.bp-calc-key.wide { grid-column: span 2; }
.bp-calc-key:hover { opacity: 0.85; }

.bp-calc-tabs { display: flex; }
.bp-calc-tab { flex: 1; background: #fff; border: none; border-bottom: 3px solid var(--bp-border); padding: 8px 0; font-size: 12px; font-weight: bold; color: var(--bp-ink-soft); cursor: pointer; }
.bp-calc-tab.active { background: var(--bp-header); color: #fff; border-bottom-color: var(--bp-header); }
.bp-calc-panel-wide { width: 260px; }
.bp-calc-mortgage-form { padding: 12px; }
.bp-calc-mortgage-form .bp-field { margin-bottom: 10px; }
.bp-calc-mortgage-result { margin-top: 10px; padding-top: 10px; border-top: 1px solid var(--bp-border); }
.bp-calc-mortgage-row { display: flex; justify-content: space-between; font-size: 13px; padding: 4px 0; }
.bp-calc-mortgage-row strong { color: var(--bp-header); }