/* =============================================================================
 * FILE:     public/css/dashboard.css
 * PURPOSE:  Look of the Dashboard and its CSI settings screen: tabs, filter bar,
 *           KPI tiles, cards, tables, stacked bars, skeleton loading and tooltips.
 *           Every class starts with "db-" so it cannot touch other screens.
 * RUNS ON:  Browser (linked from public/index.html, cached by public/sw.js).
 * USES:     Colour variables and easing curves from css/styles.css.
 * USED BY:  public/js/pages/dashboard*.js, public/js/pages/settings-csi.js,
 *           public/js/lib/dash-ui.js, public/js/lib/dash-charts.js.
 * NOTES:    Motion is CSS only, short, on transform/opacity/colour, and switched
 *           off for prefers-reduced-motion (D-62, D-66).
 * ========================================================================== */

.db {
  --db-ink: var(--c-text, #1C2B3A);
  --db-muted: #5B6B7F;
  --db-line: #E2EAF4;
  --db-surface: #FFFFFF;
  --db-radius: 12px;
  --db-ring: 0 0 0 1px rgba(15, 43, 82, 0.08), 0 1px 2px rgba(15, 43, 82, 0.05);
  --db-good: var(--c-teal, #0F9D72);
  --db-warn: var(--c-amber, #F59E0B);
  --db-bad: var(--c-red, #DC2626);
  --db-accent: var(--c-primary, #1B5FA8);
  color: var(--db-ink);
  max-width: 1480px;
}

/* ── Header and filters ───────────────────────────────────────────────────── */
.db-head { display: flex; flex-wrap: wrap; align-items: flex-end; justify-content: space-between; gap: 14px; margin-bottom: 14px; }
.db-head h1 { margin: 0; font-size: 22px; font-weight: 700; letter-spacing: -0.01em; color: var(--c-navy, #0F2B52); }
.db-head p { margin: 3px 0 0; font-size: 12.5px; color: var(--db-muted); }
.db-filters { display: flex; flex-wrap: wrap; gap: 10px; align-items: flex-end; }
.db-filters label { display: block; margin-bottom: 3px; font-size: 10.5px; font-weight: 600; letter-spacing: 0.06em; text-transform: uppercase; color: var(--db-muted); }
.db-filters select { min-width: 150px; font-size: 13px; }

/* ── Buttons and tabs ─────────────────────────────────────────────────────── */
.db-btn {
  display: inline-flex; align-items: center; gap: 6px; padding: 7px 12px; font: inherit; font-size: 12.5px; font-weight: 600;
  color: var(--db-ink); background: var(--db-surface); border: 0; border-radius: 8px; box-shadow: var(--db-ring); cursor: pointer;
  transition: transform 160ms var(--ease-out), background-color 150ms ease;
}
.db-btn:active { transform: scale(0.97); }
.db-btn:focus-visible, .db-tab:focus-visible, .db-help:focus-visible { outline: 2px solid var(--db-accent); outline-offset: 2px; }
.db-btn--primary { color: #fff; background: var(--db-accent); box-shadow: none; }
.db-btn[disabled] { opacity: 0.5; cursor: not-allowed; transform: none; }

.db-tabs { display: flex; gap: 2px; margin-bottom: 18px; overflow-x: auto; border-bottom: 1px solid var(--db-line); scrollbar-width: none; }
.db-tabs::-webkit-scrollbar { display: none; }
.db-tab {
  position: relative; padding: 10px 14px; font: inherit; font-size: 13px; font-weight: 600; color: var(--db-muted);
  background: transparent; border: 0; border-radius: 8px 8px 0 0; cursor: pointer; white-space: nowrap;
  transition: color 150ms ease, transform 160ms var(--ease-out);
}
.db-tab:active { transform: scale(0.97); }
.db-tab::after {
  content: ''; position: absolute; left: 10px; right: 10px; bottom: -1px; height: 2px; border-radius: 2px;
  background: var(--db-accent); transform: scaleX(0); transition: transform 200ms var(--ease-out);
}
.db-tab[aria-selected="true"] { color: var(--c-navy, #0F2B52); }
.db-tab[aria-selected="true"]::after { transform: scaleX(1); }

.db-panel { opacity: 1; transform: translateY(0); transition: opacity 180ms var(--ease-out), transform 180ms var(--ease-out); }
@starting-style { .db-panel { opacity: 0; transform: translateY(4px); } }

/* ── Layout ───────────────────────────────────────────────────────────────── */
.db-grid { display: grid; gap: 14px; margin-bottom: 14px; grid-template-columns: repeat(var(--cols, 1), minmax(0, 1fr)); }
.db-g1 { --cols: 1; } .db-g2 { --cols: 2; } .db-g3 { --cols: 3; } .db-g4 { --cols: 4; }
.db-span2 { grid-column: span 2; }
@media (max-width: 1100px) { .db-g4 { --cols: 2; } .db-g3 { --cols: 2; } .db-span2 { grid-column: span 2; } }
@media (max-width: 700px) { .db-g2, .db-g3, .db-g4 { --cols: 1; } .db-span2 { grid-column: auto; } }
.db-section { margin: 26px 0 10px; font-size: 11px; font-weight: 700; letter-spacing: 0.1em; text-transform: uppercase; color: var(--db-muted); }

/* ── Cards and tiles ──────────────────────────────────────────────────────── */
.db-card { padding: 16px 18px; background: var(--db-surface); border-radius: var(--db-radius); box-shadow: var(--db-ring); min-width: 0; }
.db-card__title { display: flex; align-items: center; gap: 6px; margin: 0 0 12px; font-size: 13px; font-weight: 650; color: var(--db-ink); }
.db-card__sub { margin: -6px 0 12px; font-size: 12px; color: var(--db-muted); }

.db-tile { padding: 14px 16px; background: var(--db-surface); border-radius: var(--db-radius); box-shadow: var(--db-ring); min-width: 0; }
.db-tile__label { display: flex; align-items: center; gap: 6px; font-size: 11px; font-weight: 600; letter-spacing: 0.05em; text-transform: uppercase; color: var(--db-muted); }
.db-tile__value { margin-top: 8px; font-size: 28px; font-weight: 700; line-height: 1; letter-spacing: -0.02em; color: var(--c-navy, #0F2B52); font-variant-numeric: tabular-nums; }
.db-tile__value small { font-size: 14px; font-weight: 600; color: var(--db-muted); letter-spacing: 0; }
.db-tile__sub { margin-top: 7px; font-size: 12px; color: var(--db-muted); }
.db-dot { width: 7px; height: 7px; border-radius: 50%; background: var(--db-line); flex: none; }
.db-dot--good { background: var(--db-good); } .db-dot--warn { background: var(--db-warn); } .db-dot--bad { background: var(--db-bad); }

.db-delta { display: inline-flex; align-items: center; gap: 3px; padding: 1px 7px; font-size: 11.5px; font-weight: 600; border-radius: 999px; font-variant-numeric: tabular-nums; background: #EEF2F7; color: var(--db-muted); }
.db-delta--good { background: #DDF5EC; color: #0B6B4D; }
.db-delta--bad { background: #FDE4E4; color: #A31616; }

/* ── Help tooltip (origin-aware, short) ───────────────────────────────────── */
.db-help {
  position: relative; display: inline-flex; align-items: center; justify-content: center; width: 15px; height: 15px; flex: none;
  font-size: 10px; font-weight: 700; line-height: 1; color: var(--db-muted); background: #EEF2F7; border-radius: 50%; cursor: help; text-transform: none; letter-spacing: 0;
}
.db-help::after {
  content: attr(data-tip); position: absolute; z-index: 30; left: -6px; bottom: calc(100% + 8px); width: max-content; max-width: 250px; padding: 8px 10px;
  font-size: 12px; font-weight: 450; line-height: 1.45; text-align: left; color: #fff; background: #1C2B3A; border-radius: 8px; pointer-events: none;
  opacity: 0; transform: scale(0.97); transform-origin: 14px 100%; transition: opacity 125ms var(--ease-out), transform 125ms var(--ease-out);
}
.db-help:hover::after, .db-help:focus-visible::after { opacity: 1; transform: scale(1); }

/* ── Tables ───────────────────────────────────────────────────────────────── */
.db-table-wrap { overflow-x: auto; }
.db-scroll { max-height: 440px; overflow-y: auto; }
.db-table { width: 100%; border-collapse: collapse; font-size: 12.5px; font-variant-numeric: tabular-nums; }
.db-table th { padding: 6px 10px; font-size: 10.5px; font-weight: 600; letter-spacing: 0.05em; text-align: left; text-transform: uppercase; color: var(--db-muted); white-space: nowrap; }
.db-table td { padding: 8px 10px; border-top: 1px solid var(--db-line); }
.db-table .num { text-align: right; }
.db-table th.num { text-align: right; }
@media (hover: hover) and (pointer: fine) { .db-table tbody tr:hover td { background: #F7F9FC; } }
.db-chip { display: inline-block; padding: 1px 8px; font-size: 11px; font-weight: 600; border-radius: 999px; background: #EEF2F7; color: #475569; }
.db-chip--good { background: #DDF5EC; color: #0B6B4D; } .db-chip--warn { background: #FEF0C7; color: #8A5300; } .db-chip--bad { background: #FDE4E4; color: #A31616; }

.db-meter { display: inline-block; width: 64px; height: 5px; vertical-align: middle; background: var(--db-line); border-radius: 3px; overflow: hidden; }
.db-meter > i { display: block; height: 100%; background: var(--db-accent); border-radius: 3px; }

/* ── Stacked bar (CSI contribution, coverage split) ───────────────────────── */
.db-stack { display: flex; height: 14px; gap: 2px; overflow: hidden; border-radius: 7px; background: var(--db-line); }
.db-stack > span { min-width: 2px; transition: flex-grow 250ms var(--ease-out); }
.db-legend { display: flex; flex-wrap: wrap; gap: 6px 16px; margin-top: 10px; font-size: 12px; color: var(--db-muted); }
.db-legend b { color: var(--db-ink); font-weight: 600; font-variant-numeric: tabular-nums; }
.db-legend i { display: inline-block; width: 9px; height: 9px; margin-right: 6px; border-radius: 3px; vertical-align: -1px; }

/* ── Hero number (CSI, coverage) ──────────────────────────────────────────── */
.db-hero { display: flex; align-items: baseline; flex-wrap: wrap; gap: 8px 12px; }
.db-hero__value { font-size: 52px; font-weight: 700; line-height: 1; letter-spacing: -0.03em; color: var(--c-navy, #0F2B52); font-variant-numeric: tabular-nums; }
.db-hero__unit { font-size: 18px; font-weight: 600; color: var(--db-muted); }

/* ── Charts ───────────────────────────────────────────────────────────────── */
.db-chart { position: relative; height: 260px; }
.db-chart--sm { height: 200px; } .db-chart--lg { height: 320px; }
.db-card--fill { display: flex; flex-direction: column; }
.db-card--fill .db-chart { flex: 1; height: auto; min-height: 320px; }

/* ── Reading notes, states ────────────────────────────────────────────────── */
.db-note { margin: 12px 0 0; padding: 9px 12px; font-size: 12.5px; line-height: 1.5; color: #334155; background: #F4F7FB; border-radius: 8px; }
.db-note--warn { color: #6B4300; background: #FEF6DD; }
.db-state { display: flex; align-items: center; justify-content: center; min-height: 90px; padding: 16px; font-size: 13px; text-align: center; color: var(--db-muted); }
.db-state--error { color: #A31616; }
.db-stats { display: grid; grid-template-columns: repeat(auto-fit, minmax(92px, 1fr)); gap: 8px; margin-bottom: 14px; }
.db-stats div { padding: 8px 10px; background: #F4F7FB; border-radius: 8px; }
.db-stats dt { font-size: 10.5px; font-weight: 600; letter-spacing: 0.05em; text-transform: uppercase; color: var(--db-muted); }
.db-stats dd { margin: 3px 0 0; font-size: 17px; font-weight: 650; font-variant-numeric: tabular-nums; }

.db-skel { height: 100%; min-height: 70px; border-radius: 8px; background: linear-gradient(90deg, #EEF2F7 25%, #F7F9FC 50%, #EEF2F7 75%); background-size: 200% 100%; animation: db-shimmer 1.3s linear infinite; }
@keyframes db-shimmer { to { background-position: -200% 0; } }

/* ── CSI settings form ────────────────────────────────────────────────────── */
.db-form { display: grid; gap: 12px; max-width: 460px; }
.db-form__row { display: grid; grid-template-columns: 1fr 96px; align-items: center; gap: 12px; }
.db-form__row small { display: block; color: var(--db-muted); font-size: 12px; }
.db-form input[type="number"] { width: 100%; padding: 7px 9px; font: inherit; text-align: right; font-variant-numeric: tabular-nums; border: 1px solid var(--c-border, #CBD8EA); border-radius: 8px; }
.db-form__sum { display: flex; justify-content: space-between; padding: 8px 12px; font-weight: 600; border-radius: 8px; background: #F4F7FB; }
.db-form__sum--ok { background: #DDF5EC; color: #0B6B4D; } .db-form__sum--bad { background: #FDE4E4; color: #A31616; }

/* ── Small layout helpers (used instead of inline styles) ─────────────────── */
.db-card__sub.db-lead { margin: 6px 0 12px; }
.db-block { margin-top: 14px; }
.db-snapshot { margin: -4px 0 14px; }
.db-stats--2 { grid-template-columns: 1fr 1fr; }
.db-card--narrow { max-width: 560px; }
.db-actions { display: flex; gap: 8px; }
.db-state .db-skel { width: 100%; }
.db-dot--inline { display: inline-block; margin-right: 6px; }

/* ── Company brand colours (D-78): MYMSA blue, Instrutec red ──────────────── */
.db { --db-myms: #1B5FA8; --db-inst: #C32025; }
.db[data-company="MYMS"] { --db-accent: var(--db-myms); }
.db[data-company="INST"] { --db-accent: var(--db-inst); }
.db-co { display: inline-block; width: 9px; height: 9px; margin-right: 6px; border-radius: 50%; vertical-align: 0; background: var(--db-line); flex: none; }
.db-co--MYMS { background: var(--db-myms); }
.db-co--INST { background: var(--db-inst); }
.db-co--BOTH { background: linear-gradient(90deg, var(--db-myms) 50%, var(--db-inst) 50%); }
.db-co-head { display: inline-flex; align-items: center; justify-content: flex-end; font-weight: 700; }

/* ── Segmented toggle (company, fleet-age basis) ──────────────────────────── */
.db-filters__label { display: block; margin-bottom: 3px; font-size: 10.5px; font-weight: 600; letter-spacing: 0.06em; text-transform: uppercase; color: var(--db-muted); }
.db-seg { display: inline-flex; gap: 2px; padding: 3px; background: #E6ECF4; border-radius: 10px; }
.db-seg__btn {
  padding: 6px 14px; font: inherit; font-size: 13px; font-weight: 600; color: var(--db-muted); background: transparent; border: 0; border-radius: 8px; cursor: pointer;
  transition: background-color 160ms ease, color 160ms ease, transform 160ms var(--ease-out);
}
.db-seg__btn:active { transform: scale(0.97); }
.db-seg__btn:focus-visible { outline: 2px solid var(--db-accent); outline-offset: 2px; }
.db-seg__btn[aria-checked="true"], .db-seg__btn[aria-pressed="true"] { color: #fff; background: var(--c-navy, #0F2B52); }
.db-seg__btn[data-company="MYMS"][aria-checked="true"] { background: var(--db-myms); }
.db-seg__btn[data-company="INST"][aria-checked="true"] { background: var(--db-inst); }
.db-seg--soft .db-seg__btn[aria-pressed="true"] { color: var(--db-ink); background: #fff; box-shadow: var(--db-ring); }
.db-scope-note { margin: 0 0 12px; }
.db-scope-note[hidden] { display: none; }
.db-filters select { min-width: 140px; }

/* ── Resolution score with its 95% range (D-79) ───────────────────────────── */
.db-res { display: inline-flex; align-items: center; gap: 8px; white-space: nowrap; cursor: help; }
.db-res b { min-width: 34px; font-weight: 650; text-align: right; font-variant-numeric: tabular-nums; }
.db-res--thin b { font-weight: 500; color: var(--db-muted); }
.db-res--none { color: #94A3B8; cursor: default; }
.db-range { position: relative; display: inline-block; width: 72px; height: 8px; background: var(--db-line); border-radius: 4px; }
.db-range i { position: absolute; top: 0; bottom: 0; background: var(--db-accent); opacity: 0.45; border-radius: 4px; }
.db-range em { position: absolute; top: -2px; width: 3px; height: 12px; margin-left: -1.5px; background: var(--c-navy, #0F2B52); border-radius: 2px; }
.db-n { font-size: 11px; color: var(--db-muted); }

/* ── Share bars (company comparison) ──────────────────────────────────────── */
.db-share { margin-bottom: 14px; }
.db-share__label { display: flex; justify-content: space-between; margin-bottom: 5px; font-size: 12px; font-weight: 600; color: var(--db-muted); }
.db-share .db-legend { margin-top: 6px; }

/* ── Chip buttons (fleet-age buckets) ─────────────────────────────────────── */
.db-chip-row { display: flex; flex-wrap: wrap; gap: 6px; margin-top: 12px; }
.db-chip-btn {
  display: inline-flex; gap: 6px; align-items: baseline; padding: 5px 11px; font: inherit; font-size: 12px; color: var(--db-ink); background: #EEF2F7; border: 0; border-radius: 999px; cursor: pointer;
  transition: background-color 150ms ease, transform 160ms var(--ease-out);
}
.db-chip-btn b { font-variant-numeric: tabular-nums; }
.db-chip-btn:active { transform: scale(0.97); }
.db-chip-btn:focus-visible { outline: 2px solid var(--db-accent); outline-offset: 2px; }
@media (hover: hover) and (pointer: fine) { .db-chip-btn:hover { background: #E1E8F2; } }
.db-card__head { display: flex; align-items: center; justify-content: space-between; gap: 10px; margin-bottom: 12px; }
.db-card__head .db-card__title { margin: 0; }

/* ── Drawer: opens over the page, never moves it ──────────────────────────── */
.db-drawer { position: fixed; inset: 0; z-index: 200; pointer-events: none; }
.db-drawer.is-open { pointer-events: auto; }
.db-drawer__backdrop { position: absolute; inset: 0; background: rgba(15, 43, 82, 0.35); opacity: 0; transition: opacity 220ms var(--ease-out); }
.db-drawer.is-open .db-drawer__backdrop { opacity: 1; }
.db-drawer__panel {
  position: absolute; top: 0; right: 0; bottom: 0; display: flex; flex-direction: column; width: min(620px, 100%); background: var(--db-surface); outline: 0;
  box-shadow: -8px 0 32px rgba(15, 43, 82, 0.18); transform: translateX(100%); transition: transform 260ms var(--ease-drawer);
}
.db-drawer.is-open .db-drawer__panel { transform: translateX(0); }
.db-drawer__head { display: flex; align-items: flex-start; justify-content: space-between; gap: 12px; padding: 18px 20px 12px; border-bottom: 1px solid var(--db-line); }
.db-drawer__head h3 { margin: 0; font-size: 16px; font-weight: 650; }
.db-drawer__head p { margin: 3px 0 0; font-size: 12.5px; color: var(--db-muted); }
.db-drawer__body { flex: 1; min-height: 0; padding: 14px 20px 20px; overflow-y: auto; overscroll-behavior: contain; }
.db-search { width: 100%; margin-bottom: 10px; padding: 8px 10px; font: inherit; font-size: 13px; border: 1px solid var(--c-border, #CBD8EA); border-radius: 8px; }
.db-search:focus-visible { outline: 2px solid var(--db-accent); outline-offset: 1px; }

/* ── Supplier > brand > model tree ────────────────────────────────────────── */
.db-tree-tools { display: flex; flex-wrap: wrap; gap: 8px; margin-bottom: 10px; }
.db-tree-tools .db-search { flex: 1 1 200px; width: auto; margin: 0; }
.db-tree { table-layout: auto; }
.db-tree tr[hidden] { display: none; }
.db-tree .lv-1 td { font-weight: 650; background: #F7F9FC; }
.db-tree .lv-2 td:first-child { padding-left: 34px; }
.db-tree .lv-3 td:first-child { padding-left: 58px; color: var(--db-muted); }
.db-tree__btn {
  display: inline-flex; align-items: center; gap: 6px; padding: 0; font: inherit; font-weight: inherit; color: inherit; background: none; border: 0; cursor: pointer; text-align: left;
}
.db-tree__btn::before { content: '▸'; display: inline-block; width: 12px; font-size: 11px; color: var(--db-muted); transition: transform 160ms var(--ease-out); }
.db-tree__btn[aria-expanded="true"]::before { transform: rotate(90deg); }
.db-tree__btn:focus-visible { outline: 2px solid var(--db-accent); outline-offset: 2px; border-radius: 4px; }
.db-tree__spacer { display: inline-block; width: 18px; }
.db-stack--mini { display: inline-flex; width: 120px; height: 8px; vertical-align: middle; }
.db-tree-wrap { max-height: 480px; overflow: auto; }
.db-tree-wrap thead th { position: sticky; top: 0; background: var(--db-surface); z-index: 1; }
@media (prefers-reduced-motion: reduce) {
  .db *, .db *::before, .db *::after { transition-duration: 0.01ms !important; animation-duration: 0.01ms !important; animation-iteration-count: 1 !important; }
}