/* Stat chart (hover card + modal), "What changed" panel, message change badges. Loaded after features.css.
   Palette: dataviz dark steps validated against the app's card surface; text always wears text tokens. */
:root {
    --sc-surface: #181820;
    --sc-raised: #1f1f2a;
    --sc-grid: rgba(255, 255, 255, 0.075);
    --sc-axis: #4d4d62;
    --sc-text: #f4f4f5;
    --sc-text-2: #cfcfda;
    --sc-text-3: #a3a3b5;
    --sc-up: #34d399;
    --sc-down: #f87171;
    --sc-flat: #a3a3b5;
    --sc-focus: var(--focus-ring, #a78bfa);
}
.sr-only { position: absolute; width: 1px; height: 1px; margin: -1px; padding: 0; overflow: hidden; clip: rect(0 0 0 0); white-space: nowrap; border: 0; }

/* ---------- meter integration ---------- */
.meter-chart-btn {
    background: none; border: 1px solid transparent; color: var(--text-muted); cursor: pointer; border-radius: 4px;
    padding: 0.05rem 0.2rem; margin-left: 0.2rem; line-height: 1; vertical-align: middle;
}
.meter-chart-btn:hover, .meter-chart-btn[aria-expanded="true"] { color: #fff; background: #272733; border-color: var(--border-light); }
.meter-item { position: relative; }
body:not(.show-spark) .meter-spark { display: none; }

/* ---------- chart ---------- */
.sc-host { position: relative; width: 100%; }
.sc-svg { display: block; width: 100%; height: auto; overflow: visible; touch-action: pan-y; border-radius: 6px; }
.sc-svg:focus-visible { outline: 2px solid var(--sc-focus); outline-offset: 3px; }
.sc-gridline { stroke: var(--sc-grid); stroke-width: 1; }
.sc-gridline-v { stroke-dasharray: 1 4; }
.sc-axis, .sc-tick { stroke: var(--sc-axis); stroke-width: 1; }
.sc-axis-text { fill: var(--sc-text-2); font-size: 11px; font-variant-numeric: tabular-nums; }
.sc-axis-title { fill: var(--sc-text-3); font-size: 11px; letter-spacing: 0.02em; }
.sc-note-text { fill: var(--sc-text-3); font-size: 10.5px; }
.sc-default { stroke-width: 1; stroke-dasharray: 2 5; opacity: 0.55; }
.sc-line { fill: none; stroke-linejoin: round; stroke-linecap: round; }
.sc-point, .sc-override, .sc-hot { stroke: var(--sc-surface); stroke-width: 2; paint-order: stroke; }
.sc-point[fill="none"], .sc-hot[fill="none"] { stroke-width: 2.2; }
.sc-override { stroke: var(--sc-text); stroke-width: 1.6; }
.sc-clamp-ring { fill: none; stroke-width: 1.4; stroke-dasharray: 2 2; opacity: 0.9; }
.sc-halo { fill: var(--sc-surface); opacity: 0.85; }
.sc-annot rect { fill: var(--sc-raised); stroke: var(--sc-axis); stroke-width: 1; }
.sc-annot text { fill: var(--sc-text); font-size: 11px; font-weight: 600; }
.sc-end text { fill: var(--sc-text); font-size: 12px; font-weight: 700; font-variant-numeric: tabular-nums; }
.sc-mini .sc-end text, .sc-mini .sc-axis-text { font-size: 10px; }
.sc-cross-line { stroke: var(--sc-text-2); stroke-width: 1; stroke-dasharray: 3 3; }
.sc-cross-sel { stroke: var(--sc-text); stroke-width: 1; opacity: 0.55; }
.sc-overlay { fill: transparent; cursor: crosshair; }
.sc-dbar { shape-rendering: geometricPrecision; }
.sc-first .sc-line, .sc-first .sc-point { animation: sc-fade 0.45s ease-out both; }
@keyframes sc-fade { from { opacity: 0; } to { opacity: 1; } }
.sc-live { position: absolute; width: 1px; height: 1px; overflow: hidden; clip: rect(0 0 0 0); }

/* tooltip + point card */
.sc-tip {
    position: absolute; z-index: 5; pointer-events: none; max-width: min(300px, 92%); background: #0f0f15;
    border: 1px solid var(--border-light); border-radius: 8px; padding: 0.5rem 0.65rem; box-shadow: 0 6px 18px rgba(0, 0, 0, 0.55);
}
.sc-tip[hidden] { display: none; }
.sc-card { display: flex; flex-direction: column; gap: 0.25rem; font-size: 0.8rem; color: var(--sc-text); }
.sc-card-head { display: flex; align-items: baseline; gap: 0.5rem; }
.sc-card-head strong { font-size: 0.85rem; }
.sc-approx { font-size: 0.68rem; color: var(--sc-text-3); font-style: italic; }
.sc-card-label { color: var(--sc-text-2); font-style: italic; font-size: 0.75rem; overflow: hidden; display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; }
.sc-card-row { display: flex; align-items: center; gap: 0.45rem; }
.sc-card-name { color: var(--sc-text-2); font-size: 0.75rem; flex: 1; min-width: 0; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.sc-card-val { font-size: 0.95rem; font-variant-numeric: tabular-nums; }
.sc-card-flag { color: var(--sc-text-2); font-size: 0.72rem; padding-left: 2rem; }
.sc-card-compact { font-size: 0.75rem; gap: 0.15rem; }
.sc-key { flex: none; }
.sc-chip { display: inline-flex; align-items: center; gap: 0.15rem; font-size: 0.72rem; font-weight: 700; padding: 0.02rem 0.4rem; border-radius: 999px; border: 1px solid currentColor; font-variant-numeric: tabular-nums; white-space: nowrap; }
.sc-chip.up { color: var(--sc-up); background: rgba(52, 211, 153, 0.12); }
.sc-chip.down { color: var(--sc-down); background: rgba(248, 113, 113, 0.12); }
.sc-chip.flat { color: var(--sc-flat); background: rgba(163, 163, 181, 0.1); }

/* ---------- hover card ---------- */
.stat-hovercard {
    position: fixed; z-index: 950; background: var(--sc-raised); border: 1px solid var(--border-light); border-radius: 10px;
    padding: 0.6rem 0.7rem 0.5rem; box-shadow: 0 12px 30px rgba(0, 0, 0, 0.6); font-weight: 400; cursor: default;
    animation: sc-fade 0.12s ease-out;
}
.sc-hover-head { display: flex; align-items: center; justify-content: space-between; gap: 0.5rem; margin-bottom: 0.35rem; font-size: 0.82rem; color: var(--sc-text); }
.sc-mini { min-height: 150px; }
.sc-empty { padding: 1.4rem 0.5rem; text-align: center; color: var(--sc-text-2); font-style: italic; font-size: 0.85rem; }

/* ---------- stat chart modal ---------- */
.modal-card-statchart { max-width: 1040px; width: 94vw; height: auto; max-height: 92vh; }
.sc-body { gap: 0.85rem; }
.sc-toolbar { display: flex; flex-wrap: wrap; gap: 0.6rem 1rem; align-items: center; justify-content: space-between; }
.sc-legend, .sc-tools { display: flex; flex-wrap: wrap; gap: 0.4rem; align-items: center; }
.sc-toggle {
    display: inline-flex; align-items: center; gap: 0.45rem; padding: 0.3rem 0.65rem; border-radius: 999px; cursor: pointer; font-family: inherit;
    background: transparent; color: var(--sc-text-2); border: 1px dashed var(--border-light); font-size: 0.82rem;
}
.sc-toggle.on { background: #272733; color: var(--sc-text); border: 1px solid var(--sc-text-3); }
.sc-toggle:hover { border-color: var(--sc-text-2); }
.sc-toggle-val { font-weight: 700; font-variant-numeric: tabular-nums; color: var(--sc-text); }
.sc-toggle:not(.on) .sc-toggle-val { color: var(--sc-text-3); }
.sc-seg { display: inline-flex; border: 1px solid var(--border-light); border-radius: 7px; overflow: hidden; }
.sc-seg-btn { background: transparent; border: 0; color: var(--sc-text-2); font-family: inherit; font-size: 0.78rem; padding: 0.3rem 0.65rem; cursor: pointer; }
.sc-seg-btn + .sc-seg-btn { border-left: 1px solid var(--border-light); }
.sc-seg-btn.on { background: var(--primary); color: #fff; font-weight: 600; }
.sc-seg-btn:not(.on):hover { background: #272733; color: #fff; }
.sc-stage { min-height: 200px; }
.sc-readout { margin-top: 0.7rem; padding: 0.6rem 0.8rem; border: 1px solid var(--border-color); border-radius: 8px; background: #14141c; display: flex; align-items: flex-start; gap: 0.8rem; flex-wrap: wrap; min-height: 3.2rem; }
.sc-readout.is-selected { border-color: var(--sc-text-3); }
.sc-readout .sc-card { flex: 1; min-width: 14rem; }
.sc-hint { color: var(--sc-text-3); font-size: 0.78rem; align-self: center; }
.sc-keys { display: flex; flex-wrap: wrap; gap: 0.4rem 1.1rem; font-size: 0.75rem; color: var(--sc-text-2); }
.sc-key-item { display: inline-flex; align-items: center; gap: 0.35rem; }
.sc-key-line { width: 18px; border-top: 1.5px dotted var(--sc-text-2); }
.sc-key-glyph { font-size: 0.8rem; color: var(--sc-text); }
.sc-key-glyph.up { color: var(--sc-up); } .sc-key-glyph.down { color: var(--sc-down); }
.sc-footer { align-items: center; justify-content: space-between; }
.sc-note { flex: 1; text-align: left; }
.sc-table-wrap { max-height: 56vh; overflow: auto; border: 1px solid var(--border-color); border-radius: 8px; }
.sc-table { width: 100%; border-collapse: collapse; font-size: 0.8rem; color: var(--sc-text); }
.sc-table caption { text-align: left; padding: 0.5rem 0.7rem; color: var(--sc-text-2); font-size: 0.75rem; }
.sc-table th, .sc-table td { padding: 0.35rem 0.7rem; text-align: left; border-top: 1px solid var(--border-color); }
.sc-table thead th { position: sticky; top: 0; background: #1d1d27; color: var(--sc-text-2); font-weight: 600; }
.sc-table td.num { text-align: right; font-variant-numeric: tabular-nums; }
.sc-td-label { max-width: 24rem; color: var(--sc-text-2); overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }

/* ---------- what-changed panel ---------- */
.modal-card-changes { max-width: 640px; width: 94vw; }
.cp-head { display: flex; align-items: center; gap: 0.6rem; }
.cp-nav { min-width: 2rem; font-size: 1.1rem; line-height: 1; padding: 0.15rem 0.5rem; }
.cp-content { display: flex; flex-direction: column; gap: 1.1rem; }
.cp-section { display: flex; flex-direction: column; gap: 0.4rem; }
.cp-h { font-size: 0.72rem; text-transform: uppercase; letter-spacing: 0.07em; color: var(--sc-text-3); font-weight: 700; }
.cp-list { list-style: none; display: flex; flex-direction: column; gap: 0.55rem; }
.cp-stat { display: grid; grid-template-columns: minmax(5rem, 8rem) auto 1fr; gap: 0.2rem 0.9rem; align-items: center; padding: 0.55rem 0.7rem; border: 1px solid var(--border-color); border-radius: 8px; background: #14141c; }
.cp-stat.is-flat { opacity: 0.78; }
.cp-stat-name { font-weight: 600; color: var(--sc-text); }
.cp-stat-vals { display: flex; align-items: center; gap: 0.4rem; font-variant-numeric: tabular-nums; color: var(--sc-text); }
.cp-before { color: var(--sc-text-3); }
.cp-bar { min-width: 90px; }
.cp-bar-track { position: relative; height: 8px; border-radius: 4px; background: #272733; overflow: hidden; }
.cp-bar-base { position: absolute; left: 0; top: 0; bottom: 0; width: var(--lo); background: #5b5b73; }
.cp-bar-move { position: absolute; top: 0; bottom: 0; left: var(--lo); width: var(--hi); min-width: 2px; }
.cp-bar-move.up { background: var(--sc-up); } .cp-bar-move.down { background: var(--sc-down); } .cp-bar-move.flat { background: var(--sc-flat); }
.cp-bar-before { position: absolute; top: -1px; bottom: -1px; left: var(--b); width: 2px; background: var(--sc-text); transform: translateX(-1px); }
.cp-bar-scale { display: flex; justify-content: space-between; font-size: 0.62rem; color: var(--sc-text-3); margin-top: 0.1rem; }
.cp-stat-note, .cp-reason { grid-column: 1 / -1; font-size: 0.75rem; color: var(--sc-text-2); }
.cp-reason { font-style: italic; }
.cp-fact, .cp-ovr { display: flex; flex-wrap: wrap; align-items: baseline; gap: 0.2rem 0.6rem; padding: 0.4rem 0.7rem; border: 1px solid var(--border-color); border-radius: 8px; background: #14141c; font-size: 0.85rem; }
.cp-fact-label { font-weight: 600; text-transform: capitalize; color: var(--sc-text); }
.cp-fact-value { color: var(--sc-text-2); flex-basis: 100%; }
.cp-soft { display: flex; flex-direction: column; gap: 0.25rem; padding: 0.5rem 0.7rem; border: 1px solid var(--border-color); border-radius: 8px; background: #14141c; font-size: 0.82rem; }
.cp-soft .soft-tag { align-self: flex-start; }
.cp-old { color: var(--sc-text-3); text-decoration: line-through; text-decoration-color: rgba(163, 163, 181, 0.5); }
.cp-new-text { color: var(--sc-text); }
.cp-label { display: inline-block; min-width: 3.2rem; font-size: 0.65rem; text-transform: uppercase; letter-spacing: 0.05em; color: var(--sc-text-3); text-decoration: none; }
.cp-new { background: rgba(52, 211, 153, 0.2); color: var(--sc-text); border-radius: 3px; padding: 0 0.12rem; border-bottom: 1px solid var(--sc-up); }
.cp-mood { display: flex; align-items: center; gap: 0.4rem; color: var(--sc-text-2); }
.cp-outcome { padding: 0.5rem 0.7rem; border: 1px solid var(--accent-gold); border-radius: 8px; color: var(--accent-gold); font-size: 0.85rem; }
.cp-empty { color: var(--sc-text-2); font-style: italic; text-align: center; padding: 1.2rem 0; }
.cp-approx { padding: 0.35rem 0.6rem; border-left: 2px solid var(--sc-text-3); }
.cp-footer { flex-wrap: wrap; align-items: center; }
.cp-tel { flex: 1; min-width: 12rem; text-align: left; }
.cp-tel .telemetry-line { margin: 0; }

/* ---------- message footer ---------- */
.msg-changes-badge {
    margin-left: 0.35rem; padding: 0 0.4rem; border-radius: 999px; font-size: 0.66rem; font-weight: 700; color: var(--sc-text);
    background: rgba(139, 92, 246, 0.22); border: 1px solid rgba(139, 92, 246, 0.5); white-space: nowrap; font-variant-numeric: tabular-nums;
}
body.hide-change-badges .msg-changes-badge { display: none; }
.message-wrapper.msg-jump-flash .chat-bubble { outline: 2px solid var(--sc-focus); outline-offset: 3px; animation: sc-flash 2.2s ease-out; }
@keyframes sc-flash { 0%, 55% { outline-color: var(--sc-focus); box-shadow: 0 0 0 6px rgba(167, 139, 250, 0.25); } 100% { outline-color: transparent; box-shadow: none; } }
.message-wrapper.msg-jump-flash .chat-bubble:focus { outline-style: solid; }

@media (prefers-reduced-motion: reduce) {
    html:not(.motion-full) .msg-jump-flash .chat-bubble { animation: none; }
}
body.reduce-fx .msg-jump-flash .chat-bubble, body.reduce-fx .stat-hovercard, body.reduce-fx .sc-first .sc-line, body.reduce-fx .sc-first .sc-point { animation: none; }

@media (max-width: 700px) {
    .modal-overlay.sc-overlay-full { padding: 0; }
    .modal-card-statchart, .modal-card-changes { width: 100% !important; max-width: 100% !important; max-height: 100% !important; height: 100%; border-radius: 0; }
    .sc-toolbar { flex-direction: column; align-items: stretch; }
    .sc-card-flag { padding-left: 0; }
    .cp-stat { grid-template-columns: 1fr auto; }
    .cp-bar { grid-column: 1 / -1; }
    .sc-footer, .cp-footer { gap: 0.5rem; }
}