/* ============================================================================
   Air Charts — the reusable visualization layer (Sprint G). 100% token-driven:
   every colour comes from the generated --air-chart-* family (series + semantic
   roles) and the Air semantic tokens. No chart owns a palette. Loaded globally
   after air-design-tokens.css. Light/Dark differ only in resolved token values.
   ============================================================================ */

/* ── Chart card (container) ─────────────────────────────────────────────── */
.air-chart-card {
    background: var(--air-surface);
    border: 1px solid var(--air-border);
    border-radius: var(--air-radius);
    padding: 1rem 1.1rem;
    box-shadow: var(--air-shadow-xs);
}
.air-chart-card-title {
    font-size: var(--air-font-size-md);
    font-weight: var(--air-font-weight-semibold);
    color: var(--air-text);
    margin: 0 0 0.75rem;
}

/* ── Dot / swatch (status + legend) ─────────────────────────────────────── */
.air-chart-dot {
    display: inline-block;
    width: 10px;
    height: 10px;
    border-radius: 50%;
    flex: 0 0 auto;
    background: var(--air-chart-neutral);  /* role utility class overrides (defined last) */
}

/* ── Bars (the CSS-bar visualization the panels use today) ──────────────── */
.air-chart-bar-track {
    display: flex;
    width: 100%;
    height: 8px;
    border-radius: 999px;
    overflow: hidden;
    background: var(--air-bg-muted);
}
.air-chart-bar {
    height: 100%;
    min-height: 2px;
    background: var(--air-chart-neutral);
}

/* ── Shared tooltip (Part 6) — Air surface/border/elevation/typography ──── */
.air-chart-tooltip {
    background: var(--air-surface-elevated, var(--air-surface));
    border: 1px solid var(--air-border);
    border-radius: var(--air-radius-sm);
    box-shadow: var(--air-shadow-md);
    color: var(--air-text);
    font-family: var(--air-font-family);
    font-size: var(--air-font-size-sm, 0.8125rem);
    padding: 0.4rem 0.6rem;
    pointer-events: none;
}
.air-chart-tooltip-label { color: var(--air-text-muted); }
.air-chart-tooltip-value { color: var(--air-text); font-weight: var(--air-font-weight-semibold); }

/* ── Legend (Part 7) ────────────────────────────────────────────────────── */
.air-legend {
    display: flex;
    flex-wrap: wrap;
    gap: 0.35rem 1rem;
    align-items: center;
}
.air-legend-item {
    display: inline-flex;
    align-items: center;
    gap: 0.4rem;
    font-size: var(--air-font-size-sm, 0.8125rem);
    color: var(--air-text-muted);
    background: none;
    border: none;
    padding: 0;
    cursor: default;
}
.air-legend-item.is-interactive { cursor: pointer; }
.air-legend-item.is-hidden { opacity: 0.4; }
.air-legend-item.is-hidden .air-legend-swatch { background: var(--air-disabled); }
.air-legend-swatch {
    width: 10px;
    height: 10px;
    border-radius: 3px;
    flex: 0 0 auto;
    background: var(--air-chart-neutral);
}
/* Opt-in round marker (AirLegend Marker="AirLegendMarker.Round"); the default square is unchanged. */
.air-legend-swatch--round { border-radius: 50%; }
.air-legend-label { color: var(--air-text); }
.air-legend-value { color: var(--air-text-muted); font-variant-numeric: tabular-nums; }
.air-legend-pct   { color: var(--air-text-subtle); font-variant-numeric: tabular-nums; }
.air-legend-item:focus-visible { outline: 2px solid var(--air-focus-ring); outline-offset: 2px; border-radius: 4px; }

/* ── Colour utilities (defined LAST so a role class wins ties over the
   component defaults above). Use instead of an inline colour:
   <span class="air-chart-dot air-cf-success">. -cf-* = fill; -cs-* = stroke/text. */
.air-cf-1  { background: var(--air-chart-1); }   .air-cs-1  { color: var(--air-chart-1); }
.air-cf-2  { background: var(--air-chart-2); }   .air-cs-2  { color: var(--air-chart-2); }
.air-cf-3  { background: var(--air-chart-3); }   .air-cs-3  { color: var(--air-chart-3); }
.air-cf-4  { background: var(--air-chart-4); }   .air-cs-4  { color: var(--air-chart-4); }
.air-cf-5  { background: var(--air-chart-5); }   .air-cs-5  { color: var(--air-chart-5); }
.air-cf-6  { background: var(--air-chart-6); }   .air-cs-6  { color: var(--air-chart-6); }
.air-cf-7  { background: var(--air-chart-7); }   .air-cs-7  { color: var(--air-chart-7); }
.air-cf-8  { background: var(--air-chart-8); }   .air-cs-8  { color: var(--air-chart-8); }
.air-cf-9  { background: var(--air-chart-9); }   .air-cs-9  { color: var(--air-chart-9); }
.air-cf-10 { background: var(--air-chart-10); }  .air-cs-10 { color: var(--air-chart-10); }
.air-cf-11 { background: var(--air-chart-11); }  .air-cs-11 { color: var(--air-chart-11); }
.air-cf-12 { background: var(--air-chart-12); }  .air-cs-12 { color: var(--air-chart-12); }

.air-cf-primary    { background: var(--air-chart-primary); }     .air-cs-primary    { color: var(--air-chart-primary); }
.air-cf-secondary  { background: var(--air-chart-secondary); }   .air-cs-secondary  { color: var(--air-chart-secondary); }
.air-cf-comparison { background: var(--air-chart-comparison); }   .air-cs-comparison { color: var(--air-chart-comparison); }
.air-cf-prediction { background: var(--air-chart-prediction); }   .air-cs-prediction { color: var(--air-chart-prediction); }
.air-cf-highlight  { background: var(--air-chart-highlight); }    .air-cs-highlight  { color: var(--air-chart-highlight); }
.air-cf-baseline   { background: var(--air-chart-baseline); }     .air-cs-baseline   { color: var(--air-chart-baseline); }
.air-cf-success    { background: var(--air-chart-success); }      .air-cs-success    { color: var(--air-chart-success); }
.air-cf-warning    { background: var(--air-chart-warning); }      .air-cs-warning    { color: var(--air-chart-warning); }
.air-cf-error      { background: var(--air-chart-error); }        .air-cs-error      { color: var(--air-chart-error); }
.air-cf-neutral    { background: var(--air-chart-neutral); }      .air-cs-neutral    { color: var(--air-chart-neutral); }

/* ════════════════════════════════════════════════════════════════════════
   Air Visualization framework (Sprint G.5) — KPI / metric / trend / tooltip.
   100% token-driven; shared by every dashboard so they look like one system.
   ════════════════════════════════════════════════════════════════════════ */

/* ── KPI card (rich dashboard metric) ──────────────────────────────────── */
.air-kpi-card {
    display: flex;
    flex-direction: column;
    gap: 0.35rem;
    background: var(--air-surface);
    border: 1px solid var(--air-border);
    border-radius: var(--air-radius);
    padding: 1rem 1.1rem;
    box-shadow: var(--air-shadow-xs);
    min-width: 0;
}
.air-kpi-card.is-emphasis { border-color: var(--air-accent); }
.air-kpi-card-head { display: flex; align-items: center; gap: 0.5rem; }
.air-kpi-card-icon { color: var(--air-icon); display: inline-flex; flex: 0 0 auto; }
.air-kpi-card-title { font-size: var(--air-font-size-sm, 0.8125rem); color: var(--air-text-muted); font-weight: 500; }
.air-kpi-card-value { font-size: 1.6rem; line-height: 1.1; font-weight: var(--air-font-weight-semibold); color: var(--air-text); font-variant-numeric: tabular-nums; }
.air-kpi-card-subtitle { font-size: var(--air-font-size-sm, 0.8125rem); color: var(--air-text-subtle); }
.air-kpi-card-foot { margin-top: 0.15rem; display: flex; align-items: center; gap: 0.5rem; flex-wrap: wrap; }
/* First-class media slot (AirKpiCard Media) — token-tinted icon tile inside the head. */
.air-kpi-card-media { display: inline-flex; align-items: center; justify-content: center; width: 36px; height: 36px; border-radius: var(--air-radius-sm); background: var(--air-accent-soft); color: var(--air-accent); flex: 0 0 auto; }
/* Opt-in display density (AirKpiCard Display="true") — larger value, quieter label, more head→value air. */
.air-kpi-card--display { padding: 1.375rem; }
.air-kpi-card--display .air-kpi-card-head { margin-bottom: calc(1.375rem - 0.35rem); }
/* Fixed line box for the display value region (2.25rem × the base 1.1 line-height) so a numeric value
   and a non-numeric label share the exact same card height. */
.air-kpi-card--display .air-kpi-card-value { font-size: 2.25rem; line-height: 2.475rem; font-weight: 700; letter-spacing: -0.01em; }
/* Non-numeric labels render at a reduced single-line scale (never wrap, never inflate the card);
   they inherit the fixed line-height above, so the card height is identical to a numeric value. */
.air-kpi-card--display .air-kpi-card-value--text { font-size: 1.125rem; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.air-kpi-card--display .air-kpi-card-title { font-size: 0.6875rem; font-weight: 500; letter-spacing: 0.12em; }
.air-kpi-card--display .air-kpi-card-subtitle { font-size: 0.8125rem; color: var(--air-text-muted); }

/* ── Metric card (compact) ─────────────────────────────────────────────── */
.air-metric-card {
    display: flex;
    align-items: center;
    gap: 0.65rem;
    background: var(--air-surface);
    border: 1px solid var(--air-border);
    border-radius: var(--air-radius-sm);
    padding: 0.6rem 0.75rem;
    min-width: 0;
}
.air-metric-card-icon { color: var(--air-icon); display: inline-flex; flex: 0 0 auto; }
.air-metric-card-body { min-width: 0; display: flex; flex-direction: column; }
.air-metric-card-label { font-size: var(--air-font-size-sm, 0.8125rem); color: var(--air-text-muted); }
.air-metric-card-value { font-weight: var(--air-font-weight-semibold); color: var(--air-text); font-variant-numeric: tabular-nums; }
.air-metric-card-secondary { font-size: var(--air-font-size-sm, 0.8125rem); color: var(--air-text-subtle); margin-left: 0.35rem; }
.air-metric-card-aside { margin-left: auto; display: flex; align-items: center; gap: 0.4rem; }

/* ── Trend indicator ───────────────────────────────────────────────────── */
.air-trend { display: inline-flex; align-items: center; gap: 0.2rem; font-size: var(--air-font-size-sm, 0.8125rem); font-variant-numeric: tabular-nums; color: var(--air-text-subtle); }
.air-trend-glyph { font-size: 0.85em; line-height: 1; }
.air-trend-label { color: var(--air-text-subtle); }
.air-trend--positive { color: var(--air-success); }
.air-trend--negative { color: var(--air-danger); }
.air-trend--neutral  { color: var(--air-text-subtle); }

/* ── Tooltip (component) — builds on .air-chart-tooltip ────────────────── */
.air-tooltip { max-width: 18rem; }
.air-tooltip-title { font-weight: var(--air-font-weight-semibold); color: var(--air-text); margin-bottom: 0.15rem; }
.air-tooltip-row { display: flex; align-items: center; justify-content: space-between; gap: 0.75rem; }
.air-tooltip-section { border-top: 1px solid var(--air-border); margin-top: 0.35rem; padding-top: 0.35rem; }
.air-tooltip-foot { color: var(--air-text-subtle); margin-top: 0.25rem; }

/* ── Area tones (HOME-001 v1.3) ─────────────────────────────────────────────────────────────────────────
   .air-tone-<role> exposes one area colour as --air-tone, resolved from the theme's --air-chart-* token, so a
   product can give each area ONE colour across KPI tiles, sparklines, chart series, legends and module tiles
   without a hex. AirAccentTile / AirKpiCard Tone / AirSparkline consume it. */
.air-tone-1 { --air-tone: var(--air-chart-1); }
.air-tone-2 { --air-tone: var(--air-chart-2); }
.air-tone-3 { --air-tone: var(--air-chart-3); }
.air-tone-4 { --air-tone: var(--air-chart-4); }
.air-tone-5 { --air-tone: var(--air-chart-5); }
.air-tone-6 { --air-tone: var(--air-chart-6); }
.air-tone-7 { --air-tone: var(--air-chart-7); }
.air-tone-8 { --air-tone: var(--air-chart-8); }
.air-tone-9 { --air-tone: var(--air-chart-9); }
.air-tone-10 { --air-tone: var(--air-chart-10); }
.air-tone-11 { --air-tone: var(--air-chart-11); }
.air-tone-12 { --air-tone: var(--air-chart-12); }
.air-tone-primary { --air-tone: var(--air-chart-primary); }
.air-tone-secondary { --air-tone: var(--air-chart-secondary); }
.air-tone-comparison { --air-tone: var(--air-chart-comparison); }
.air-tone-prediction { --air-tone: var(--air-chart-prediction); }
.air-tone-highlight { --air-tone: var(--air-chart-highlight); }
.air-tone-baseline { --air-tone: var(--air-chart-baseline); }
.air-tone-success { --air-tone: var(--air-chart-success); }
.air-tone-warning { --air-tone: var(--air-chart-warning); }
.air-tone-error { --air-tone: var(--air-chart-error); }
.air-tone-neutral { --air-tone: var(--air-chart-neutral); }

/* Solid role-coloured icon tile (AirAccentTile, and the toned AirKpiCard media slot). The tile is a touch
   deeper than the line colour so a white glyph keeps contrast on the brighter series tones. */
.air-accent-tile,
.air-kpi-card--toned .air-kpi-card-media {
    display: inline-flex; align-items: center; justify-content: center; flex: 0 0 auto;
    width: 44px; height: 44px; border-radius: 10px;
    background: color-mix(in srgb, var(--air-tone, var(--air-accent)) 86%, black);
    color: white;
    box-shadow: inset 0 1px 0 color-mix(in srgb, white 14%, transparent);
}
.air-accent-tile .air-icon, .air-kpi-card--toned .air-kpi-card-media .air-icon { width: 24px; height: 24px; }

/* Toned KPI card — the area-coded summary card: tile + uppercase area label, large value, emphasised
   measure label, and a foot row carrying the delta and the area sparkline. */
.air-kpi-card--toned { display: flex; flex-direction: column; min-width: 0; }
.air-kpi-card--toned .air-kpi-card-head { gap: 0.875rem; }
/* An empty state-glyph slot (the Success outcome) takes no room, so the area label keeps the full head width. */
.air-kpi-card--toned .air-kpi-card-icon:empty { display: none; }
.air-kpi-card--toned .air-kpi-card-title {
    font-size: clamp(0.8125rem, 0.98vw, 0.9375rem); font-weight: 400; letter-spacing: 0.02em;
    text-transform: uppercase; color: color-mix(in srgb, var(--air-text) 86%, var(--air-bg));
    min-width: 0; overflow: hidden; text-overflow: ellipsis; white-space: nowrap;
}
.air-kpi-card--toned.air-kpi-card--display .air-kpi-card-value { font-size: 1.875rem; line-height: 2.25rem; }
.air-kpi-card--toned .air-kpi-card-subtitle {
    font-size: 1rem; font-weight: var(--air-font-weight-semibold, 600); color: var(--air-text); margin-top: 0.125rem;
}
/* The sparkline spans the full card width; the delta sits over its quiet top-left corner (the series starts low). */
.air-kpi-card--toned .air-kpi-card-foot { position: relative; display: block; margin-top: auto; padding-top: 0.625rem; }
.air-kpi-card--toned .air-kpi-card-foot .air-trend {
    position: absolute; top: 0.25rem; left: 0; z-index: 1;
    font-weight: var(--air-font-weight-semibold, 600); white-space: nowrap;
}
.air-kpi-card--toned .air-kpi-card-foot .air-sparkline { color: var(--air-tone, var(--air-accent)); }

/* Sparkline (AirSparkline) — width follows the container; the stroke and area follow currentColor. */
.air-sparkline { display: block; flex: 1 1 auto; min-width: 0; width: 100%; overflow: visible; }
.air-sparkline-line { stroke-width: 1.75; stroke-linecap: round; stroke-linejoin: round; }