/* =================================================================
   tools/bitwise-ops.css
   Auto-extracted from math.css (2026-05-11).
   Loaded via config/js-manifest.php → templates/partials/head-styles.php.
   ================================================================= */

/* ─── Bitwise Table (in steps) ─────────────────────────── */
.math-bitwise-table {
    font-family: 'SF Mono', 'Fira Code', 'Consolas', monospace;
    font-size: 14px;
    line-height: 2;
    margin: 8px 0;
    padding: 12px 16px;
    background: var(--math-surface-alt);
    border-radius: var(--math-radius-sm);
    border: 1px solid var(--math-border-light);
}

.math-bitwise-row {
    display: flex;
    align-items: center;
    gap: 8px;
}

.math-bitwise-label {
    width: 36px;
    text-align: right;
    font-weight: 700;
    color: var(--math-text-soft);
    flex-shrink: 0;
}

.math-bitwise-divider {
    height: 2px;
    background: var(--math-primary);
    margin: 4px 0;
    border-radius: 1px;
}

.math-bitwise-result {
    color: var(--math-primary);
    font-weight: 700;
}

/* =================================================================
   BITWISE OPS — summary, column grid, flip, shift, truth, formats
   ================================================================= */

/* ─── Summary head ──────────────────────────────────── */
.math-bw-summary-head {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    justify-content: space-between;
    gap: 14px;
    padding: 14px 16px;
    margin-bottom: 14px;
    background: linear-gradient(135deg, rgba(99, 102, 241, 0.08), rgba(251, 191, 36, 0.07));
    border: 1px solid var(--math-border-light);
    border-radius: var(--math-radius-sm);
}
.math-bw-summary-main {
    display: flex;
    flex-direction: column;
    gap: 4px;
    min-width: 0;
    flex: 1 1 320px;
}
.math-bw-summary-label {
    font-size: 11px;
    text-transform: uppercase;
    letter-spacing: 0.06em;
    color: var(--math-text-muted);
    font-weight: 600;
}
.math-bw-summary-value {
    background: transparent;
    padding: 0;
    font-size: 22px;
    font-weight: 700;
    color: #4338ca;
    font-family: 'SF Mono', Monaco, Consolas, monospace;
    word-break: break-word;
}
.math-bw-summary-sub {
    display: flex;
    flex-wrap: wrap;
    gap: 4px 10px;
    font-size: 12px;
    color: var(--math-text-muted);
}
.math-bw-summary-sub i {
    margin-right: 3px;
    color: var(--math-primary);
    opacity: 0.8;
}
.math-bw-summary-sub code {
    background: rgba(99, 102, 241, 0.08);
    color: #4338ca;
    padding: 1px 6px;
    border-radius: 4px;
    font-size: 11.5px;
}
.math-bw-summary-meta {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    align-items: center;
}
.math-bw-op-badge,
.math-bw-chip {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    padding: 5px 12px;
    border-radius: var(--math-radius-full);
    font-size: 12px;
    font-weight: 600;
    border: 1px solid var(--math-border-light);
    background: #fff;
    color: var(--math-text-soft);
}
.math-bw-op-badge code {
    background: rgba(99, 102, 241, 0.15);
    color: #4338ca;
    padding: 0 5px;
    border-radius: 3px;
    font-size: 11px;
    font-weight: 700;
}
.math-bw-op-badge[data-op="and"] {
    background: rgba(16, 185, 129, 0.12);
    color: #047857;
    border-color: rgba(16, 185, 129, 0.35);
}
.math-bw-op-badge[data-op="or"] {
    background: rgba(14, 165, 233, 0.12);
    color: #0369a1;
    border-color: rgba(14, 165, 233, 0.3);
}
.math-bw-op-badge[data-op="xor"] {
    background: rgba(168, 85, 247, 0.12);
    color: #7c3aed;
    border-color: rgba(168, 85, 247, 0.3);
}
.math-bw-op-badge[data-op="not"] {
    background: rgba(239, 68, 68, 0.12);
    color: #b91c1c;
    border-color: rgba(239, 68, 68, 0.3);
}
.math-bw-op-badge[data-op="shl"],
.math-bw-op-badge[data-op="shr"] {
    background: rgba(251, 191, 36, 0.14);
    color: #92400e;
    border-color: rgba(251, 191, 36, 0.35);
}

/* ─── Panel scaffolding ─────────────────────────────── */
.math-bw-panel {
    padding: 14px 16px;
    margin-bottom: 12px;
    background: #fff;
    border: 1px solid var(--math-border-light);
    border-radius: var(--math-radius-sm);
}
.math-bw-panel:empty {
    display: none;
}
.math-bw-panel-title {
    display: flex;
    align-items: center;
    flex-wrap: wrap;
    gap: 8px;
    font-size: 13px;
    font-weight: 700;
    color: var(--math-primary-hover);
    margin-bottom: 12px;
}
.math-bw-panel-title i {
    color: var(--math-primary);
}

/* ─── Column grid (AND/OR/XOR/NOT visual) ───────────── */
.math-bw-col-grid {
    display: flex;
    flex-direction: column;
    gap: 4px;
    font-family: 'SF Mono', Monaco, Consolas, monospace;
    overflow-x: auto;
}
.math-bw-col-row {
    display: grid;
    grid-template-columns: 40px repeat(var(--math-bw-bits, 8), minmax(24px, 1fr));
    gap: 3px;
    align-items: center;
}
.math-bw-col-grid[data-bits="8"]  .math-bw-col-row { grid-template-columns: 40px repeat(8,  minmax(26px, 1fr)); }
.math-bw-col-grid[data-bits="16"] .math-bw-col-row { grid-template-columns: 40px repeat(16, minmax(22px, 1fr)); }
.math-bw-col-grid[data-bits="32"] .math-bw-col-row { grid-template-columns: 40px repeat(32, minmax(18px, 1fr)); }
.math-bw-col-label {
    font-size: 11px;
    font-weight: 700;
    color: var(--math-text-muted);
    text-align: right;
    padding-right: 6px;
    font-family: system-ui, sans-serif;
}
.math-bw-col-cell {
    display: flex;
    align-items: center;
    justify-content: center;
    height: 32px;
    background: var(--math-surface-alt);
    border: 1px solid var(--math-border-light);
    border-radius: 4px;
    font-size: 13px;
    font-weight: 700;
    color: var(--math-text-soft);
}
.math-bw-col-cell.bw-bit-1 {
    background: rgba(16, 185, 129, 0.15);
    color: #047857;
    border-color: rgba(16, 185, 129, 0.35);
}
.math-bw-col-cell.bw-bit-0 {
    background: rgba(148, 163, 184, 0.12);
    color: #475569;
    border-color: rgba(148, 163, 184, 0.3);
}
.math-bw-col-cell-pos {
    background: transparent !important;
    border: none !important;
    font-size: 10px;
    font-weight: 600;
    color: var(--math-text-muted);
    height: 18px;
}
.math-bw-col-row-pos {
    margin-bottom: 2px;
}
.math-bw-col-divider {
    position: relative;
    display: flex;
    align-items: center;
    margin: 6px 0 2px 46px;
    height: 16px;
}
.math-bw-col-divider::before {
    content: '';
    position: absolute;
    left: 0; right: 0; top: 50%;
    height: 2px;
    background: var(--math-primary);
    border-radius: 1px;
}
.math-bw-col-divider[data-op="AND"]::before { background: #10b981; }
.math-bw-col-divider[data-op="OR"]::before  { background: #0ea5e9; }
.math-bw-col-divider[data-op="XOR"]::before { background: #a855f7; }
.math-bw-col-divider span {
    position: relative;
    z-index: 1;
    background: #fff;
    padding: 0 8px;
    font-size: 12px;
    font-weight: 700;
    color: var(--math-primary-hover);
    border: 1px solid var(--math-border-light);
    border-radius: 4px;
    font-family: 'SF Mono', Monaco, Consolas, monospace;
}
.math-bw-col-row-result .math-bw-col-cell.bw-result.is-highlight {
    box-shadow: 0 0 0 2px rgba(16, 185, 129, 0.35);
}
.math-bw-col-cell-arrow {
    background: transparent !important;
    border: none !important;
    color: var(--math-primary);
    font-weight: 400;
    font-size: 14px;
}

/* ─── Per-column breakdown (AND/OR/XOR) ─────────────── */
.math-bw-breakdown-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(140px, 1fr));
    gap: 8px;
}
.math-bw-breakdown-cell {
    display: flex;
    align-items: center;
    gap: 6px;
    padding: 8px 10px;
    background: var(--math-surface-alt);
    border: 1px solid var(--math-border-light);
    border-radius: 6px;
    font-size: 12px;
    font-family: 'SF Mono', Monaco, Consolas, monospace;
}
.math-bw-breakdown-cell.is-set {
    background: rgba(16, 185, 129, 0.1);
    border-color: rgba(16, 185, 129, 0.3);
}
.math-bw-bd-pos {
    font-family: system-ui, sans-serif;
    font-size: 10.5px;
    font-weight: 700;
    color: var(--math-text-muted);
    text-transform: uppercase;
    letter-spacing: 0.05em;
    flex: 0 0 auto;
}
.math-bw-bd-expr {
    background: transparent;
    padding: 0;
    color: var(--math-text);
}
.math-bw-bd-op {
    color: var(--math-primary);
    font-weight: 700;
    font-family: system-ui, sans-serif;
    font-size: 10.5px;
    margin: 0 2px;
}
.math-bw-bd-eq {
    color: var(--math-text-muted);
}
.math-bw-bd-res {
    background: transparent;
    padding: 1px 6px;
    border-radius: 4px;
    font-weight: 700;
}
.math-bw-bd-res.is-one {
    background: rgba(16, 185, 129, 0.2);
    color: #047857;
}
.math-bw-bd-res.is-zero {
    background: rgba(148, 163, 184, 0.15);
    color: #475569;
}

/* ─── Truth table ───────────────────────────────────── */
.math-bw-truth-wrap {
    display: flex;
    justify-content: center;
    overflow-x: auto;
}
.math-bw-truth-table {
    border-collapse: collapse;
    font-family: 'SF Mono', Monaco, Consolas, monospace;
    min-width: min(520px, 100%);
    border-radius: 6px;
    overflow: hidden;
}
.math-bw-truth-table th {
    background: var(--math-primary);
    color: #fff;
    padding: 10px 24px;
    font-size: 13px;
    font-weight: 700;
    border: 1px solid var(--math-primary);
    text-align: center;
    min-width: 80px;
}
.math-bw-truth-table td {
    padding: 10px 24px;
    text-align: center;
    font-size: 16px;
    font-weight: 700;
    border: 1px solid var(--math-border-light);
    min-width: 80px;
}
.math-bw-truth-table td.bw-cell.bw-1 {
    background: rgba(16, 185, 129, 0.15);
    color: #047857;
}
.math-bw-truth-table td.bw-cell.bw-0 {
    background: rgba(148, 163, 184, 0.12);
    color: #475569;
}

/* ─── Formats table ─────────────────────────────────── */
.math-bw-fmt-table-wrap {
    overflow-x: auto;
}
.math-bw-fmt-table {
    width: 100%;
    border-collapse: collapse;
    font-size: 12.5px;
}
.math-bw-fmt-table th {
    text-align: left;
    padding: 6px 10px;
    font-size: 11px;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    color: var(--math-text-muted);
    background: var(--math-surface-alt);
    border-bottom: 1px solid var(--math-border-light);
}
.math-bw-fmt-table td {
    padding: 6px 10px;
    border-bottom: 1px solid var(--math-border-light);
    font-family: 'SF Mono', Monaco, Consolas, monospace;
    color: var(--math-text);
}
.math-bw-fmt-table th.math-bw-fmt-rowh {
    font-family: system-ui, sans-serif;
    background: transparent;
    font-weight: 700;
    color: var(--math-text-muted);
    width: 40px;
}
.math-bw-fmt-table tr.is-result {
    background: rgba(16, 185, 129, 0.07);
}
.math-bw-fmt-table tr.is-result th.math-bw-fmt-rowh {
    color: #047857;
}
.math-bw-fmt-table tr.is-result td {
    color: #047857;
    font-weight: 700;
}
.math-bw-fmt-table code {
    background: transparent;
    padding: 0;
    font-size: 12.5px;
}
.math-bw-fmt-u {
    font-size: 10.5px;
    color: var(--math-text-muted);
    margin-left: 4px;
    font-family: system-ui, sans-serif;
}

/* ─── Shift timeline ────────────────────────────────── */
.math-bw-shift-list {
    display: flex;
    flex-direction: column;
    gap: 6px;
}
.math-bw-shift-row {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    gap: 10px;
    padding: 8px 12px;
    background: var(--math-surface-alt);
    border: 1px solid var(--math-border-light);
    border-radius: 6px;
    font-family: 'SF Mono', Monaco, Consolas, monospace;
    font-size: 13px;
}
.math-bw-shift-row.is-initial {
    background: rgba(148, 163, 184, 0.1);
    border-color: rgba(148, 163, 184, 0.3);
}
.math-bw-shift-row.is-final {
    background: rgba(251, 191, 36, 0.12);
    border-color: rgba(251, 191, 36, 0.35);
}
.math-bw-shift-step {
    flex: 0 0 auto;
    font-family: system-ui, sans-serif;
    font-size: 11.5px;
    font-weight: 700;
    color: var(--math-text-muted);
    text-transform: uppercase;
    letter-spacing: 0.04em;
}
.math-bw-shift-row.is-final .math-bw-shift-step {
    color: #92400e;
}
.math-bw-shift-arrow {
    color: #d97706;
    font-weight: 700;
    margin-left: 2px;
    font-family: 'SF Mono', Monaco, Consolas, monospace;
}
.math-bw-shift-bin {
    flex: 1 1 auto;
    background: transparent;
    padding: 0;
    color: var(--math-text);
    font-size: 13px;
    font-weight: 700;
    word-break: break-all;
}
.math-bw-shift-meta {
    flex: 1 1 100%;
    font-family: system-ui, sans-serif;
    font-size: 11px;
    color: var(--math-text-muted);
}
.math-bw-shift-dropped code {
    background: rgba(239, 68, 68, 0.12);
    color: #b91c1c;
}
.math-bw-shift-entered code {
    background: rgba(16, 185, 129, 0.15);
    color: #047857;
}
.math-bw-shift-meta code {
    padding: 1px 5px;
    border-radius: 3px;
    font-size: 11px;
    margin: 0 2px;
}

/* ─── Use cases ─────────────────────────────────────── */
.math-bw-usecase-list {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
    gap: 10px;
}
.math-bw-usecase {
    display: flex;
    flex-direction: column;
    gap: 6px;
    padding: 10px 12px;
    background: var(--math-surface-alt);
    border: 1px solid var(--math-border-light);
    border-left: 3px solid var(--math-primary);
    border-radius: 6px;
}
.math-bw-usecase-title {
    font-size: 12.5px;
    font-weight: 700;
    color: var(--math-text);
}
.math-bw-usecase-desc {
    font-size: 12px;
    color: var(--math-text-soft);
    line-height: 1.5;
}
.math-bw-usecase-desc code {
    background: rgba(99, 102, 241, 0.08);
    color: #4338ca;
    padding: 1px 5px;
    border-radius: 3px;
    font-size: 11.5px;
}
.math-bw-usecase-desc em {
    font-style: italic;
    color: var(--math-text);
    font-weight: 600;
}
.math-bw-usecase-code {
    background: #0f172a;
    color: #e2e8f0;
    padding: 6px 10px;
    border-radius: 4px;
    font-family: 'SF Mono', Monaco, Consolas, monospace;
    font-size: 12px;
    word-break: break-word;
}

/* ─── Responsive ────────────────────────────────────── */
@media (max-width: 640px) {
    .math-bw-summary-head {
        flex-direction: column;
        align-items: stretch;
        justify-content: flex-start;
        gap: 10px;
    }
    .math-bw-summary-main {
        flex: 0 0 auto;
        align-items: center;
        text-align: center;
    }
    .math-bw-summary-sub {
        justify-content: center;
    }
    .math-bw-summary-meta {
        justify-content: center;
    }
    .math-bw-summary-value {
        font-size: 18px;
    }
    .math-bw-col-grid[data-bits="16"] .math-bw-col-row { grid-template-columns: 32px repeat(16, minmax(16px, 1fr)); }
    .math-bw-col-grid[data-bits="32"] .math-bw-col-row { grid-template-columns: 32px repeat(32, minmax(14px, 1fr)); }
    .math-bw-col-cell { height: 26px; font-size: 11px; }
    .math-bw-fmt-table { font-size: 11.5px; }
    .math-bw-fmt-table th, .math-bw-fmt-table td { padding: 5px 7px; }
}