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

/* =================================================================
   STATISTICS — summary head, pillars, deviations, boxplot, histogram
   ================================================================= */

/* Summary head (big mean + chips) */
.math-stats-summary-head {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    justify-content: space-between;
    gap: 12px;
    padding: 14px 16px;
    margin-bottom: 14px;
    background: linear-gradient(135deg, rgba(99, 102, 241, 0.08), rgba(16, 185, 129, 0.06));
    border: 1px solid var(--math-border-light);
    border-radius: var(--math-radius-sm);
}
.math-stats-summary-main {
    display: flex;
    flex-direction: column;
    gap: 2px;
    min-width: 0;
    flex: 1 1 180px;
}
.math-stats-summary-label {
    font-size: 11px;
    text-transform: uppercase;
    letter-spacing: 0.06em;
    color: var(--math-text-muted);
    font-weight: 600;
}
.math-stats-summary-value {
    font-size: 26px;
    color: #4338ca;
    font-weight: 700;
    font-family: 'SF Mono', Monaco, Consolas, monospace;
    word-break: break-all;
}
.math-stats-summary-meta {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    align-items: center;
}
.math-stats-mode-badge,
.math-stats-chip {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    padding: 5px 12px;
    border-radius: var(--math-radius-full);
    font-size: 12px;
    font-weight: 600;
    background: #fff;
    border: 1px solid var(--math-border-light);
    color: var(--math-text-soft);
}
.math-stats-mode-badge {
    background: rgba(99, 102, 241, 0.1);
    color: #4338ca;
    border-color: rgba(99, 102, 241, 0.28);
}
.math-stats-mode-badge[data-mode="population"] {
    background: rgba(16, 185, 129, 0.1);
    color: #047857;
    border-color: rgba(16, 185, 129, 0.28);
}
.math-stats-chip .math-stats-chip-k {
    color: var(--math-text-muted);
    font-weight: 500;
    margin-right: 2px;
}
.math-stats-chip[data-stat="median"] {
    background: rgba(16, 185, 129, 0.08);
    color: #047857;
    border-color: rgba(16, 185, 129, 0.25);
}
.math-stats-chip[data-stat="stddev"] {
    background: rgba(245, 158, 11, 0.1);
    color: #b45309;
    border-color: rgba(245, 158, 11, 0.28);
}

/* Section wrapper */
.math-stats-section {
    margin-bottom: 16px;
}
.math-stats-section-title {
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 13px;
    font-weight: 700;
    color: var(--math-text);
    margin-bottom: 10px;
}
.math-stats-section-title i {
    color: #6366f1;
}

/* Dataset strip (original / sorted) */
.math-stats-dataset {
    padding: 12px;
    background: var(--math-surface-alt);
    border: 1px solid var(--math-border-light);
    border-radius: var(--math-radius-sm);
}
.math-stats-dataset-row {
    display: flex;
    align-items: flex-start;
    gap: 12px;
    margin-bottom: 8px;
    flex-wrap: wrap;
}
.math-stats-dataset-row:last-of-type {
    margin-bottom: 0;
}
.math-stats-dataset-label {
    flex-shrink: 0;
    display: inline-flex;
    align-items: center;
    gap: 6px;
    padding: 4px 10px;
    background: #fff;
    border: 1px solid var(--math-border-light);
    border-radius: var(--math-radius-full);
    font-size: 11.5px;
    font-weight: 600;
    color: var(--math-text-soft);
    min-width: 110px;
}
.math-stats-dataset-pills {
    display: flex;
    flex-wrap: wrap;
    gap: 4px;
    flex: 1 1 0;
    min-width: 0;
}
.math-stats-pill {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-width: 36px;
    padding: 4px 8px;
    background: #fff;
    border: 1px solid var(--math-border-light);
    border-radius: 5px;
    font-family: 'SF Mono', Monaco, Consolas, monospace;
    font-size: 12px;
    font-weight: 600;
    color: var(--math-text);
}
.math-stats-pill.is-q1 {
    background: rgba(99, 102, 241, 0.12);
    color: #4338ca;
    border-color: rgba(99, 102, 241, 0.3);
}
.math-stats-pill.is-median {
    background: rgba(16, 185, 129, 0.16);
    color: #047857;
    border-color: rgba(16, 185, 129, 0.35);
    font-weight: 700;
}
.math-stats-pill.is-q3 {
    background: rgba(168, 85, 247, 0.12);
    color: #7c3aed;
    border-color: rgba(168, 85, 247, 0.3);
}
.math-stats-pill.is-outlier {
    background: rgba(239, 68, 68, 0.14);
    color: #b91c1c;
    border-color: rgba(239, 68, 68, 0.35);
    font-weight: 700;
}
.math-stats-dataset-legend {
    display: flex;
    flex-wrap: wrap;
    gap: 14px;
    margin-top: 10px;
    padding-top: 8px;
    border-top: 1px dashed var(--math-border-light);
    font-size: 11.5px;
    color: var(--math-text-soft);
    align-items: center;
}
.math-stats-dataset-legend span {
    display: inline-flex;
    align-items: center;
    gap: 6px;
}

/* Pillars grid (center / spread / dispersion / quartiles) */
.math-stats-pillars {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
    gap: 12px;
    margin-bottom: 16px;
}
.math-stats-pillar {
    background: #fff;
    border: 1px solid var(--math-border-light);
    border-radius: var(--math-radius-sm);
    padding: 12px 14px;
    box-shadow: 0 1px 2px rgba(0, 0, 0, 0.03);
    display: flex;
    flex-direction: column;
}
.math-stats-pillar[data-pillar="center"] {
    border-top: 3px solid #6366f1;
}
.math-stats-pillar[data-pillar="spread"] {
    border-top: 3px solid #f59e0b;
}
.math-stats-pillar[data-pillar="dispersion"] {
    border-top: 3px solid #ec4899;
}
.math-stats-pillar[data-pillar="quartiles"] {
    border-top: 3px solid #a855f7;
}
.math-stats-pillar-head {
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 12px;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.04em;
    color: var(--math-text);
    margin-bottom: 10px;
}
.math-stats-pillar-head i {
    font-size: 12px;
}
.math-stats-pillar[data-pillar="center"] .math-stats-pillar-head i { color: #6366f1; }
.math-stats-pillar[data-pillar="spread"] .math-stats-pillar-head i { color: #f59e0b; }
.math-stats-pillar[data-pillar="dispersion"] .math-stats-pillar-head i { color: #ec4899; }
.math-stats-pillar[data-pillar="quartiles"] .math-stats-pillar-head i { color: #a855f7; }
.math-stats-pillar-body {
    display: flex;
    flex-direction: column;
    gap: 6px;
    flex: 1;
}
.math-stats-row {
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 10px;
    padding: 3px 0;
    font-size: 12.5px;
    min-width: 0;
}
.math-stats-k {
    color: var(--math-text-muted);
    font-weight: 500;
    flex-shrink: 0;
}
.math-stats-v {
    color: var(--math-text);
    font-weight: 600;
    font-family: 'SF Mono', Monaco, Consolas, monospace;
    text-align: right;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}
.math-stats-pillar-note {
    margin-top: 8px;
    padding-top: 8px;
    border-top: 1px dashed var(--math-border-light);
    font-size: 11px;
    color: var(--math-text-muted);
    font-style: italic;
}

/* Deviations table */
.math-stats-dev-table-wrap {
    overflow-x: auto;
    border: 1px solid var(--math-border-light);
    border-radius: var(--math-radius-sm);
    -webkit-overflow-scrolling: touch;
}
.math-stats-dev-table {
    width: 100%;
    border-collapse: collapse;
    font-size: 12.5px;
}
.math-stats-dev-table th {
    background: var(--math-surface-alt);
    color: var(--math-text);
    padding: 8px 12px;
    font-weight: 700;
    text-align: left;
    font-size: 11.5px;
    text-transform: uppercase;
    letter-spacing: 0.04em;
    border-bottom: 1px solid var(--math-border-light);
}
.math-stats-dev-table td {
    padding: 7px 12px;
    border-bottom: 1px solid var(--math-border-light);
    font-family: 'SF Mono', Monaco, Consolas, monospace;
    font-size: 12px;
    color: var(--math-text);
}
.math-stats-dev-table td.math-stats-dev-idx {
    color: var(--math-text-muted);
    font-weight: 500;
    width: 40px;
}
.math-stats-dev-val[data-sign="pos"] {
    color: #047857;
    font-weight: 600;
}
.math-stats-dev-val[data-sign="neg"] {
    color: #b91c1c;
    font-weight: 600;
}
.math-stats-dev-val[data-sign="zero"] {
    color: var(--math-text-muted);
}
.math-stats-dev-sq {
    color: #b45309;
    font-weight: 600;
}
.math-stats-z-val {
    padding: 2px 7px;
    border-radius: 5px;
    font-weight: 600;
}
.math-stats-z-val[data-mag="near"] {
    background: rgba(16, 185, 129, 0.1);
    color: #047857;
}
.math-stats-z-val[data-mag="mid"] {
    background: rgba(245, 158, 11, 0.12);
    color: #b45309;
}
.math-stats-z-val[data-mag="far"] {
    background: rgba(239, 68, 68, 0.14);
    color: #b91c1c;
}
.math-stats-dev-sumrow {
    background: rgba(99, 102, 241, 0.06);
}
.math-stats-dev-sumrow td {
    border-bottom: none;
}
.math-stats-dev-sumlabel strong {
    color: #4338ca;
}
.math-stats-dev-sum-note {
    color: var(--math-text-muted);
    font-size: 11px;
    font-style: italic;
    font-family: inherit;
}
.math-stats-dev-more {
    color: var(--math-text-muted);
    font-style: italic;
    text-align: center !important;
}
.math-stats-dev-note {
    margin-top: 10px;
    padding: 8px 12px;
    background: rgba(99, 102, 241, 0.06);
    border-left: 3px solid #6366f1;
    border-radius: 0 4px 4px 0;
    font-size: 12px;
    color: var(--math-text-soft);
    line-height: 1.5;
}
.math-stats-dev-note i {
    color: #eab308;
    margin-right: 4px;
}

/* Inline deviation summary table used inside a step */
.math-stats-step-table {
    width: 100%;
    margin: 8px 0;
    border-collapse: collapse;
    font-size: 12.5px;
    font-family: 'SF Mono', Monaco, Consolas, monospace;
}
.math-stats-step-table th,
.math-stats-step-table td {
    padding: 5px 10px;
    border: 1px solid var(--math-border-light);
    text-align: center;
}
.math-stats-step-table th {
    background: var(--math-surface-alt);
    font-weight: 700;
    font-size: 11.5px;
}

/* Variance formula panel */
.math-stats-formula {
    padding: 12px 16px;
    background: #fff;
    border: 1px solid var(--math-border-light);
    border-radius: var(--math-radius-sm);
}
.math-stats-formula-row {
    display: flex;
    flex-direction: column;
    gap: 8px;
}
.math-stats-formula-line {
    display: flex;
    align-items: center;
    gap: 12px;
    flex-wrap: wrap;
}
.math-stats-formula-label {
    font-size: 11px;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    color: var(--math-text-muted);
    font-weight: 600;
    min-width: 100px;
}
.math-stats-formula-eq {
    background: rgba(99, 102, 241, 0.08);
    color: #4338ca;
    padding: 6px 12px;
    border-radius: 5px;
    font-family: 'SF Mono', Monaco, Consolas, monospace;
    font-size: 13px;
    flex: 1 1 auto;
}
.math-stats-formula-eq strong {
    color: #047857;
}
.math-stats-formula-note {
    margin-top: 12px;
    padding-top: 10px;
    border-top: 1px dashed var(--math-border-light);
    font-size: 12px;
    color: var(--math-text-soft);
    line-height: 1.55;
}
.math-stats-formula-note i {
    color: #6366f1;
}

/* Box plot (redesigned for light theme + outliers) */
.math-stats-boxplot {
    padding: 20px 14px 8px;
    background: #fff;
    border: 1px solid var(--math-border-light);
    border-radius: var(--math-radius-sm);
    margin-bottom: 12px;
}
.math-boxplot-wrap {
    width: 100%;
    position: relative;
}
.math-boxplot-track {
    position: relative;
    height: 40px;
    margin: 10px 14px 32px;
}
.math-boxplot-whisker {
    position: absolute;
    top: 19px;
    height: 2px;
    background: #6366f1;
    opacity: 0.55;
}
.math-boxplot-cap {
    position: absolute;
    top: 8px;
    width: 2px;
    height: 24px;
    background: #6366f1;
    transform: translateX(-1px);
}
.math-boxplot-box {
    position: absolute;
    top: 6px;
    height: 28px;
    background: rgba(99, 102, 241, 0.18);
    border: 1.5px solid #6366f1;
    border-radius: 4px;
}
.math-boxplot-median {
    position: absolute;
    top: 2px;
    width: 3px;
    height: 36px;
    background: #10b981;
    transform: translateX(-1.5px);
    border-radius: 1.5px;
    box-shadow: 0 0 6px rgba(16, 185, 129, 0.5);
}
.math-boxplot-mean {
    position: absolute;
    top: 14px;
    width: 12px;
    height: 12px;
    background: #f59e0b;
    transform: translateX(-6px) rotate(45deg);
    border: 1.5px solid #fff;
    box-shadow: 0 0 0 1px #f59e0b;
}
.math-boxplot-outlier {
    position: absolute;
    top: 14px;
    width: 10px;
    height: 10px;
    background: #ef4444;
    border: 2px solid #fff;
    border-radius: 50%;
    transform: translateX(-5px);
    box-shadow: 0 0 0 1px #ef4444, 0 0 6px rgba(239, 68, 68, 0.3);
    z-index: 2;
}
.math-boxplot-axis {
    position: relative;
    height: 24px;
    margin: 0 14px;
}
.math-boxplot-axis-label {
    position: absolute;
    top: 0;
    transform: translateX(-50%);
    font-size: 10.5px;
    color: var(--math-text-muted);
    font-family: 'SF Mono', Monaco, Consolas, monospace;
    white-space: nowrap;
}
.math-boxplot-axis-label[data-kind="q1"] { color: #4338ca; font-weight: 600; }
.math-boxplot-axis-label[data-kind="med"] { color: #047857; font-weight: 700; }
.math-boxplot-axis-label[data-kind="q3"] { color: #7c3aed; font-weight: 600; }
.math-boxplot-axis-label[data-kind="min"],
.math-boxplot-axis-label[data-kind="max"] { color: var(--math-text-soft); font-weight: 500; }

/* 5-number summary pills under boxplot */
.math-stats-five-num {
    display: grid;
    grid-template-columns: repeat(5, 1fr);
    gap: 8px;
    margin: 12px 0;
}
.math-stats-fnum {
    padding: 10px 8px;
    background: #fff;
    border: 1px solid var(--math-border-light);
    border-radius: var(--math-radius-sm);
    text-align: center;
    display: flex;
    flex-direction: column;
    gap: 3px;
}
.math-stats-fnum-label {
    font-size: 10.5px;
    text-transform: uppercase;
    letter-spacing: 0.06em;
    color: var(--math-text-muted);
    font-weight: 700;
}
.math-stats-fnum-val {
    font-family: 'SF Mono', Monaco, Consolas, monospace;
    font-size: 13.5px;
    font-weight: 700;
    color: var(--math-text);
    word-break: break-all;
}
.math-stats-fnum.fnum-min { border-top: 3px solid #94a3b8; }
.math-stats-fnum.fnum-q1 { border-top: 3px solid #6366f1; }
.math-stats-fnum.fnum-med { border-top: 3px solid #10b981; background: rgba(16, 185, 129, 0.05); }
.math-stats-fnum.fnum-q3 { border-top: 3px solid #a855f7; }
.math-stats-fnum.fnum-max { border-top: 3px solid #94a3b8; }

/* Outliers section */
.math-stats-fence-note {
    font-size: 12px;
    color: var(--math-text-soft);
    margin-bottom: 8px;
}
.math-stats-fence-note i {
    color: #6366f1;
    margin-right: 4px;
}
.math-stats-fence-note code {
    background: rgba(99, 102, 241, 0.08);
    color: #4338ca;
    padding: 1px 6px;
    border-radius: 4px;
    font-size: 11.5px;
}
.math-stats-outliers-none {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    padding: 6px 12px;
    background: rgba(16, 185, 129, 0.1);
    color: #047857;
    border-radius: var(--math-radius-full);
    font-size: 12.5px;
    font-weight: 600;
}
.math-stats-outliers-list {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    gap: 8px;
}
.math-stats-outliers-title {
    font-size: 12.5px;
    font-weight: 700;
    color: #b91c1c;
    display: inline-flex;
    align-items: center;
    gap: 6px;
}
.math-stats-outlier-pill {
    display: inline-flex;
    align-items: center;
    gap: 4px;
    padding: 4px 10px;
    background: rgba(239, 68, 68, 0.12);
    color: #b91c1c;
    border: 1px solid rgba(239, 68, 68, 0.3);
    border-radius: var(--math-radius-full);
    font-family: 'SF Mono', Monaco, Consolas, monospace;
    font-size: 12px;
    font-weight: 700;
}
.math-stats-outlier-pill small {
    font-size: 10px;
    opacity: 0.8;
}

/* Histogram */
.math-stats-hist-wrap {
    padding: 12px;
    background: #fff;
    border: 1px solid var(--math-border-light);
    border-radius: var(--math-radius-sm);
}
.math-stats-hist-bars {
    display: flex;
    align-items: flex-end;
    gap: 6px;
    height: 140px;
    padding: 0 4px;
}
.math-stats-hist-col {
    flex: 1 1 0;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: flex-end;
    min-width: 0;
    height: 100%;
    position: relative;
}
.math-stats-hist-count {
    font-size: 11px;
    font-weight: 700;
    color: #4338ca;
    margin-bottom: 2px;
    font-family: 'SF Mono', Monaco, Consolas, monospace;
}
.math-stats-hist-bar {
    width: 100%;
    min-height: 2px;
    background: linear-gradient(180deg, #818cf8, #6366f1);
    border-radius: 3px 3px 0 0;
    transition: opacity 0.2s ease;
    cursor: help;
}
.math-stats-hist-bar:hover {
    opacity: 0.8;
}
.math-stats-hist-label {
    font-size: 10px;
    color: var(--math-text-muted);
    text-align: center;
    margin-top: 4px;
    font-family: 'SF Mono', Monaco, Consolas, monospace;
    line-height: 1.3;
    width: 100%;
}
.math-stats-hist-note {
    margin-top: 8px;
    padding-top: 6px;
    border-top: 1px dashed var(--math-border-light);
    font-size: 11px;
    color: var(--math-text-muted);
    text-align: center;
}
.math-stats-hist-note code {
    color: #4338ca;
    background: rgba(99, 102, 241, 0.08);
    padding: 1px 6px;
    border-radius: 4px;
    font-size: 11px;
}

/* Skewness card */
.math-stats-skew-card {
    margin-top: 10px;
    padding: 12px;
    background: #fff;
    border: 1px solid var(--math-border-light);
    border-radius: var(--math-radius-sm);
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 10px 16px;
}
.math-stats-skew-card[data-dir="symmetric"] { border-left: 3px solid #10b981; }
.math-stats-skew-card[data-dir="right"] { border-left: 3px solid #f59e0b; }
.math-stats-skew-card[data-dir="left"] { border-left: 3px solid #ec4899; }
.math-stats-skew-head {
    grid-column: 1 / -1;
    font-size: 13px;
    font-weight: 700;
    color: var(--math-text);
    display: flex;
    align-items: center;
    gap: 8px;
}
.math-stats-skew-arrow {
    font-size: 18px;
}
.math-stats-skew-card[data-dir="symmetric"] .math-stats-skew-arrow { color: #10b981; }
.math-stats-skew-card[data-dir="right"] .math-stats-skew-arrow { color: #f59e0b; }
.math-stats-skew-card[data-dir="left"] .math-stats-skew-arrow { color: #ec4899; }
.math-stats-skew-body {
    display: flex;
    flex-direction: column;
    gap: 4px;
}
.math-stats-skew-row {
    display: flex;
    justify-content: space-between;
    gap: 8px;
    font-size: 12px;
    padding: 2px 0;
}
.math-stats-skew-row span {
    color: var(--math-text-muted);
}
.math-stats-skew-row code {
    font-family: 'SF Mono', Monaco, Consolas, monospace;
    color: var(--math-text);
    font-weight: 600;
    background: transparent;
    padding: 0;
}
.math-stats-skew-note {
    font-size: 12px;
    color: var(--math-text-soft);
    line-height: 1.5;
}

/* Mobile */
@media (max-width: 720px) {
    .math-stats-summary-head {
        flex-direction: column;
        align-items: stretch;
    }
    .math-stats-summary-main {
        flex: 0 0 auto;
    }
    .math-stats-summary-value {
        font-size: 22px;
    }
    .math-stats-five-num {
        grid-template-columns: repeat(2, 1fr);
    }
    .math-stats-pillars {
        grid-template-columns: 1fr 1fr;
    }
    .math-stats-skew-card {
        grid-template-columns: 1fr;
    }
    .math-boxplot-axis-label {
        font-size: 9.5px;
    }
    .math-stats-hist-bars {
        height: 110px;
        gap: 3px;
    }
    .math-stats-hist-label {
        font-size: 9px;
    }
    .math-stats-dev-table th,
    .math-stats-dev-table td {
        padding: 6px 8px;
        font-size: 11.5px;
    }
}
@media (max-width: 480px) {
    .math-stats-pillars {
        grid-template-columns: 1fr;
    }
    .math-stats-five-num {
        grid-template-columns: repeat(5, 1fr);
        gap: 4px;
    }
    .math-stats-fnum {
        padding: 7px 4px;
    }
    .math-stats-fnum-val {
        font-size: 11.5px;
    }
}