/* ---- palette (see references/palette.md) ---------------------------------- */
:root {
  color-scheme: light;
  --surface:      #fcfcfb;
  --page:         #f9f9f7;
  --ink:          #0b0b0b;
  --ink-2:        #52514e;
  --muted:        #898781;
  --grid:         #e1e0d9;
  --axis:         #c3c2b7;
  --border:       rgba(11,11,11,0.10);
  --good:         #006300;
  --critical:     #d03b3b;
  --warning:      #fab219;
  --serious:      #ec835a;
  --series-1:     #2a78d6; /* blue   */
  --series-2:     #eb6834; /* orange */
  --series-3:     #1baf7a; /* aqua   */
  --series-4:     #eda100; /* yellow */
  --series-5:     #e87ba4; /* magenta*/
  --series-6:     #008300; /* green  */
  --series-7:     #4a3aa7; /* violet */
  --series-8:     #e34948; /* red    */
}
@media (prefers-color-scheme: dark) {
  :root:where(:not([data-theme="light"])) {
    color-scheme: dark;
    --surface:  #1a1a19;
    --page:     #0d0d0d;
    --ink:      #ffffff;
    --ink-2:    #c3c2b7;
    --muted:    #898781;
    --grid:     #2c2c2a;
    --axis:     #383835;
    --border:   rgba(255,255,255,0.10);
    --good:     #0ca30c;
    --critical: #e66767;
    --series-1: #3987e5;
    --series-2: #d95926;
    --series-3: #199e70;
    --series-4: #c98500;
    --series-5: #d55181;
    --series-6: #008300;
    --series-7: #9085e9;
    --series-8: #e66767;
  }
}
:root[data-theme="dark"] {
  color-scheme: dark;
  --surface:  #1a1a19;
  --page:     #0d0d0d;
  --ink:      #ffffff;
  --ink-2:    #c3c2b7;
  --muted:    #898781;
  --grid:     #2c2c2a;
  --axis:     #383835;
  --border:   rgba(255,255,255,0.10);
  --good:     #0ca30c;
  --critical: #e66767;
  --series-1: #3987e5;
  --series-2: #d95926;
  --series-3: #199e70;
  --series-4: #c98500;
  --series-5: #d55181;
  --series-6: #008300;
  --series-7: #9085e9;
  --series-8: #e66767;
}

* { box-sizing: border-box; }
html, body { margin: 0; }
body {
  font: 15px/1.5 system-ui, -apple-system, "Segoe UI", sans-serif;
  color: var(--ink);
  background: var(--page);
}
a { color: var(--series-1); text-decoration: none; }
a:hover { text-decoration: underline; }

.app-shell { min-height: 100vh; display: flex; flex-direction: column; }

/* ---- header --------------------------------------------------------------- */
.topbar {
  display: flex; align-items: center; gap: 1.5rem;
  padding: .75rem 1.25rem; border-bottom: 1px solid var(--border);
  background: var(--surface); flex-wrap: wrap;
}
.brand a { color: var(--ink); font-weight: 600; font-size: 1.05rem; }
.brand .sub { display: block; color: var(--muted); font-size: .8rem; font-weight: normal; }
#nav { display: flex; gap: 1rem; flex-wrap: wrap; margin-left: auto; }
#nav a { color: var(--ink-2); font-size: .92rem; padding: .3rem .1rem; border-bottom: 2px solid transparent; }
#nav a.active { color: var(--ink); border-bottom-color: var(--series-1); font-weight: 600; }
.icon-btn {
  border: 1px solid var(--border); background: var(--surface); color: var(--ink-2);
  border-radius: 6px; padding: .3rem .55rem; cursor: pointer; font-size: 1rem; line-height: 1;
}
.icon-btn:hover { color: var(--ink); }

/* ---- main ------------------------------------------------------------------ */
main#app { flex: 1; max-width: 74rem; width: 100%; margin: 0 auto; padding: 1.5rem 1.25rem 3rem; }
h1 { font-size: 1.4rem; margin: 0 0 .25rem; font-weight: 600; }
h2 { font-size: 1.05rem; margin: 2rem 0 .5rem; font-weight: 600; }
p.lede { color: var(--ink-2); max-width: 48rem; margin: 0 0 1.25rem; }
.error { color: var(--critical); }
.loading { color: var(--muted); font-style: italic; }

/* ---- filter bar ------------------------------------------------------------- */
.filterbar {
  display: flex; gap: 1rem; flex-wrap: wrap; align-items: end;
  padding: .9rem; margin-bottom: 1.25rem;
  background: var(--surface); border: 1px solid var(--border); border-radius: 8px;
}
.filterbar label {
  display: flex; flex-direction: column; gap: .3rem; font-size: .8rem; color: var(--ink-2);
}
.filterbar select, .filterbar input, .filterbar button {
  font: inherit; padding: .4rem .5rem; border: 1px solid var(--axis); border-radius: 5px;
  background: var(--page); color: var(--ink);
}
.filterbar select[multiple] { min-width: 10rem; height: 6.5rem; }
.filterbar .hint { font-size: .72rem; color: var(--muted); max-width: 10rem; }
.filterbar button {
  background: var(--series-1); color: #fff; border-color: var(--series-1); cursor: pointer; font-weight: 600;
}
.filterbar button:hover { opacity: .9; }
.toggle-row { display: flex; gap: .5rem; align-items: center; font-size: .85rem; color: var(--ink-2); }

/* ---- cards ------------------------------------------------------------------ */
.card-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(15rem, 1fr)); gap: .9rem; }
.card {
  background: var(--surface); border: 1px solid var(--border); border-radius: 8px; padding: .9rem 1rem;
}
.card h3 { margin: 0 0 .35rem; font-size: .85rem; color: var(--ink-2); font-weight: 600; }
.card .headline { font-size: 1.5rem; font-weight: 700; font-variant-numeric: tabular-nums; }
.card .unit { font-size: .8rem; color: var(--muted); font-weight: 400; margin-left: .25rem; }
.card .deltas { margin-top: .5rem; display: flex; flex-direction: column; gap: .2rem; font-size: .82rem; }
.delta { font-variant-numeric: tabular-nums; }
.delta.up { color: var(--critical); }
.delta.down { color: var(--good); }
.delta.flat { color: var(--muted); }
.card .share { margin-top: .5rem; font-size: .8rem; color: var(--ink-2); }

/* ---- chart / table containers ------------------------------------------------ */
.chart-box { background: var(--surface); border: 1px solid var(--border); border-radius: 8px; padding: .75rem; margin-bottom: 1.25rem; }
.chart-box .unit-note { color: var(--muted); font-size: .78rem; margin: 0 0 .4rem; }
.view-toggle { display: flex; gap: .5rem; margin-bottom: .75rem; }
.view-toggle button {
  font: inherit; font-size: .8rem; padding: .3rem .6rem; border: 1px solid var(--axis); border-radius: 5px;
  background: var(--page); color: var(--ink-2); cursor: pointer;
}
.view-toggle button.active { background: var(--series-1); color: #fff; border-color: var(--series-1); }

table.plain { border-collapse: collapse; width: 100%; font-size: .88rem; font-variant-numeric: tabular-nums; }
table.plain th, table.plain td { text-align: left; padding: .35rem .55rem; border-bottom: 1px solid var(--grid); }
table.plain td.n, table.plain th.n { text-align: right; }

.tabulator { background: var(--surface); border: 1px solid var(--border); font-size: .85rem; }
.tabulator-row, .tabulator-row.tabulator-row-even { background: var(--surface); color: var(--ink); }
.tabulator-row:hover { background: var(--page) !important; }
.tabulator-col { background: var(--surface); color: var(--ink-2); border-color: var(--border) !important; }
.tabulator-header { background: var(--surface); border-color: var(--border) !important; }
.tabulator-cell { border-color: var(--grid) !important; }
.tabulator .tabulator-header-filter input { width: 100%; box-sizing: border-box; }
.up-arrow { color: var(--critical); }
.down-arrow { color: var(--good); }
.tri { display: inline-block; width: 0; height: 0; vertical-align: middle; }
.tri.tri-up { border-left: 4px solid transparent; border-right: 4px solid transparent; border-bottom: 6px solid currentColor; }
.tri.tri-down { border-left: 4px solid transparent; border-right: 4px solid transparent; border-top: 6px solid currentColor; }

.legend-note { font-size: .78rem; color: var(--muted); margin-top: .4rem; }

/* ---- footer ------------------------------------------------------------------ */
.site-footer {
  font-size: .78rem; color: var(--muted); padding: 1rem 1.25rem 1.5rem; max-width: 74rem; margin: 0 auto;
  border-top: 1px solid var(--border); width: 100%;
}

/* ---- chat -------------------------------------------------------------------- */
.chat-toggle {
  position: fixed; right: 1.25rem; bottom: 1.25rem; z-index: 40;
  background: var(--series-1); color: #fff; border: none; border-radius: 999px;
  padding: .7rem 1.1rem; font: inherit; font-weight: 600; cursor: pointer;
  box-shadow: 0 4px 14px rgba(0,0,0,.25);
}
.chat-panel {
  position: fixed; right: 1.25rem; bottom: 1.25rem; z-index: 50;
  width: min(24rem, calc(100vw - 2.5rem)); height: min(34rem, calc(100vh - 2.5rem));
  background: var(--surface); border: 1px solid var(--border); border-radius: 10px;
  display: flex; flex-direction: column; box-shadow: 0 10px 30px rgba(0,0,0,.3);
}
.chat-panel[hidden] { display: none; }
.chat-head {
  display: flex; align-items: center; justify-content: space-between;
  padding: .6rem .8rem; border-bottom: 1px solid var(--border);
}
.chat-messages { flex: 1; overflow-y: auto; padding: .75rem; display: flex; flex-direction: column; gap: .75rem; }
.chat-hint { color: var(--muted); font-size: .82rem; margin: 0; }
.chat-msg { max-width: 92%; font-size: .88rem; }
.chat-msg.user { align-self: flex-end; background: var(--series-1); color: #fff; padding: .5rem .7rem; border-radius: 8px; }
.chat-msg.assistant { align-self: stretch; }
.chat-msg .text { white-space: pre-wrap; }
.chat-msg details { margin-top: .4rem; font-size: .78rem; color: var(--muted); }
.chat-msg details pre { white-space: pre-wrap; word-break: break-word; background: var(--page); padding: .4rem; border-radius: 5px; }
.chat-msg .rows-note { font-size: .78rem; color: var(--muted); margin-top: .3rem; }
.chat-msg table.plain { font-size: .78rem; margin-top: .3rem; }
.chat-form { display: flex; gap: .4rem; padding: .6rem; border-top: 1px solid var(--border); }
.chat-form textarea {
  flex: 1; resize: none; font: inherit; padding: .4rem .5rem; border: 1px solid var(--axis);
  border-radius: 5px; background: var(--page); color: var(--ink);
}
.chat-form button {
  background: var(--series-1); color: #fff; border: none; border-radius: 5px; padding: 0 .9rem; cursor: pointer; font-weight: 600;
}
.chat-error { color: var(--critical); font-size: .85rem; }

@media (max-width: 640px) {
  .topbar { gap: .75rem; }
  #nav { gap: .6rem; }
  .chat-panel { right: .5rem; bottom: .5rem; width: calc(100vw - 1rem); }
  .chat-toggle { right: .75rem; bottom: .75rem; }
}