/*
 * Design tokens and layout for the inventory app.
 *
 * Hand-written rather than a utility CDN: the previous version pulled Tailwind
 * and HTMX from two CDNs on every page load, which is two more things that have
 * to be up for a dashboard to render and two more origins in a screenshot of
 * the network tab. Everything here is one file, cached, and themable.
 *
 * The chart palette below is the one the charts use - core.js reads these
 * custom properties rather than carrying a second copy of the hex.
 */

:root {
  color-scheme: light;

  --plane: #f9f9f7;
  --surface: #fcfcfb;
  --surface-raised: #ffffff;
  --ink: #0b0b0b;
  --ink-secondary: #52514e;
  --ink-muted: #64625d;
  --grid: #e1e0d9;
  --axis: #c3c2b7;
  --border: rgba(11, 11, 11, 0.10);
  --border-strong: rgba(11, 11, 11, 0.18);

  --series-1: #2a78d6;
  --series-2: #eb6834;
  --series-3: #1baf7a;
  --series-4: #eda100;
  --series-5: #e87ba4;
  --series-6: #008300;
  --series-7: #4a3aa7;
  --series-8: #e34948;

  --seq-100: #cde2fb;
  --seq-250: #86b6ef;
  --seq-400: #3987e5;
  --seq-550: #1c5cab;
  --seq-700: #0d366b;

  --good: #087d08;
  --warning: #8a5b00;
  --serious: #b8441b;
  --critical: #ba2626;
  --good-ink: #006300;

  --accent: #1c5cab;
  --action-bg: #1c5cab;
  --accent-wash: rgba(42, 120, 214, 0.09);

  --radius: 10px;
  --radius-sm: 6px;
  --font: system-ui, -apple-system, "Segoe UI", sans-serif;
  --mono: ui-monospace, SFMono-Regular, "Cascadia Mono", Menlo, monospace;
}

@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) {
    color-scheme: dark;
    --plane: #0d0d0d;
    --surface: #1a1a19;
    --surface-raised: #212120;
    --ink: #ffffff;
    --ink-secondary: #c3c2b7;
    --ink-muted: #aaa79f;
    --grid: #2c2c2a;
    --axis: #383835;
    --border: rgba(255, 255, 255, 0.10);
    --border-strong: rgba(255, 255, 255, 0.20);
    --series-1: #3987e5;
    --series-2: #d95926;
    --series-3: #199e70;
    --series-4: #c98500;
    --series-5: #d55181;
    --series-6: #008300;
    --series-7: #9085e9;
    --series-8: #e66767;
    --seq-100: #0d366b;
    --seq-250: #184f95;
    --seq-400: #2a78d6;
    --seq-550: #5598e7;
    --seq-700: #9ec5f4;
    --good: #4dd34d;
    --warning: #ffca5c;
    --serious: #ff936d;
    --critical: #ff7777;
    --good-ink: #4dd34d;
    --accent: #5598e7;
    --action-bg: #1c5cab;
    --accent-wash: rgba(57, 135, 229, 0.16);
  }
}

:root[data-theme="dark"] {
  color-scheme: dark;
  --plane: #0d0d0d;
  --surface: #1a1a19;
  --surface-raised: #212120;
  --ink: #ffffff;
  --ink-secondary: #c3c2b7;
  --ink-muted: #aaa79f;
  --grid: #2c2c2a;
  --axis: #383835;
  --border: rgba(255, 255, 255, 0.10);
  --border-strong: rgba(255, 255, 255, 0.20);
  --series-1: #3987e5;
  --series-2: #d95926;
  --series-3: #199e70;
  --series-4: #c98500;
  --series-5: #d55181;
  --series-6: #008300;
  --series-7: #9085e9;
  --series-8: #e66767;
  --seq-100: #0d366b;
  --seq-250: #184f95;
  --seq-400: #2a78d6;
  --seq-550: #5598e7;
  --seq-700: #9ec5f4;
  --good: #4dd34d;
  --warning: #ffca5c;
  --serious: #ff936d;
  --critical: #ff7777;
  --good-ink: #4dd34d;
  --accent: #5598e7;
  --action-bg: #1c5cab;
  --accent-wash: rgba(57, 135, 229, 0.16);
}

* { box-sizing: border-box; }

.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

html, body {
  margin: 0;
  padding: 0;
  background: var(--plane);
  color: var(--ink);
  font-family: var(--font);
  font-size: 14px;
  line-height: 1.5;
  -webkit-font-smoothing: antialiased;
}

a { color: var(--accent); text-decoration: none; }
a:hover { text-decoration: underline; }

:where(a, button, input, select, textarea, [tabindex]):focus-visible {
  outline: 3px solid var(--accent);
  outline-offset: 3px;
}

.skip-link {
  position: fixed;
  top: 8px;
  left: 8px;
  z-index: 100;
  padding: 8px 12px;
  border-radius: var(--radius-sm);
  background: var(--surface-raised);
  color: var(--ink);
  border: 1px solid var(--border-strong);
  transform: translateY(-160%);
}
.skip-link:focus { transform: translateY(0); }

/* ---------------------------------------------------------------- chrome */
.topbar {
  position: sticky;
  top: 0;
  z-index: 20;
  background: var(--surface);
  border-bottom: 1px solid var(--border);
}
.topbar-inner {
  max-width: 1520px;
  margin: 0 auto;
  padding: 0 20px;
  display: flex;
  align-items: center;
  gap: 22px;
  min-height: 54px;
  flex-wrap: wrap;
}
.brand {
  display: flex;
  align-items: baseline;
  gap: 9px;
  font-weight: 640;
  font-size: 15px;
  letter-spacing: -0.01em;
  color: var(--ink);
}
.brand:hover { text-decoration: none; }
.brand .dot {
  width: 8px; height: 8px; border-radius: 50%;
  background: var(--series-3);
  align-self: center;
}
.brand small {
  font-weight: 400;
  color: var(--ink-muted);
  font-size: 12px;
  letter-spacing: 0;
}
nav.pages { display: flex; gap: 2px; flex-wrap: wrap; margin-left: auto; }
nav.pages a {
  padding: 6px 11px;
  border-radius: var(--radius-sm);
  color: var(--ink-secondary);
  font-size: 13px;
  font-weight: 500;
  white-space: nowrap;
}
nav.pages a:hover { background: var(--accent-wash); color: var(--ink); text-decoration: none; }
nav.pages a.active { background: var(--accent-wash); color: var(--accent); font-weight: 600; }

.theme-toggle {
  border: 1px solid var(--border);
  background: transparent;
  color: var(--ink-secondary);
  border-radius: var(--radius-sm);
  padding: 5px 9px;
  cursor: pointer;
  font-size: 13px;
  font-family: inherit;
}
.theme-toggle:hover { border-color: var(--border-strong); color: var(--ink); }

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    scroll-behavior: auto !important;
    transition-duration: 0.01ms !important;
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
  }
}

main {
  max-width: 1520px;
  margin: 0 auto;
  padding: 22px 20px 64px;
}

.page-head { margin-bottom: 18px; }
.page-head h1 {
  margin: 0 0 4px;
  font-size: 21px;
  font-weight: 650;
  letter-spacing: -0.015em;
}
.page-head p {
  margin: 0;
  color: var(--ink-secondary);
  max-width: 78ch;
  font-size: 13.5px;
}

/* ---------------------------------------------------------------- cards */
.card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 16px 18px;
}
.card > h2 {
  margin: 0 0 3px;
  font-size: 14px;
  font-weight: 620;
  letter-spacing: -0.005em;
}
.card > .sub {
  margin: 0 0 12px;
  font-size: 12.5px;
  color: var(--ink-secondary);
  max-width: 82ch;
}

.grid { display: grid; gap: 14px; }
.g2 { grid-template-columns: repeat(2, minmax(0, 1fr)); }
.g3 { grid-template-columns: repeat(3, minmax(0, 1fr)); }
.g-2-1 { grid-template-columns: minmax(0, 2fr) minmax(0, 1fr); }
.g-1-2 { grid-template-columns: minmax(0, 1fr) minmax(0, 2fr); }
/* An `auto` column sizes to its widest child, and a row of stat tiles is as
   wide as all of its tiles side by side. Without the explicit track, the tile
   rows pushed the page to 1,311px on a 390px phone. */
.stack { display: grid; grid-template-columns: minmax(0, 1fr); gap: 14px; }

@media (max-width: 1080px) {
  .g2, .g3, .g-2-1, .g-1-2 { grid-template-columns: minmax(0, 1fr); }
}

/* ------------------------------------------------------------ stat tiles */
.kpis {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(168px, 1fr));
  gap: 12px;
}
.kpi {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 13px 15px 14px;
  min-height: 92px;
  display: flex;
  flex-direction: column;
  gap: 3px;
}
.kpi .label {
  font-size: 11.5px;
  text-transform: uppercase;
  letter-spacing: 0.055em;
  color: var(--ink-muted);
  font-weight: 600;
}
.kpi .value {
  font-size: 25px;
  font-weight: 600;
  letter-spacing: -0.025em;
  line-height: 1.15;
}
.kpi .note { font-size: 12px; color: var(--ink-secondary); }
.kpi.is-good .value { color: var(--good-ink); }
.kpi.is-warning .value { color: var(--serious); }
.kpi.is-critical .value { color: var(--critical); }

/* ----------------------------------------------------------------- chart */
.chart { width: 100%; height: 300px; }
.chart.tall { height: 400px; }
.chart.short { height: 210px; }
.chart-empty {
  display: flex; align-items: center; justify-content: center;
  height: 100%; color: var(--ink-muted); font-size: 13px;
}

/* ----------------------------------------------------------------- table */
.table-wrap { overflow-x: auto; max-height: 520px; overflow-y: auto; }
.table-wrap:focus-visible { border-radius: var(--radius-sm); }
table.data {
  width: 100%;
  border-collapse: collapse;
  font-size: 12.5px;
  font-variant-numeric: tabular-nums;
}
table.data th {
  position: sticky;
  top: 0;
  background: var(--surface);
  text-align: left;
  font-weight: 600;
  font-size: 11.5px;
  letter-spacing: 0.03em;
  text-transform: uppercase;
  color: var(--ink-muted);
  padding: 8px 10px;
  border-bottom: 1px solid var(--border-strong);
  white-space: nowrap;
  z-index: 1;
}
table.data td {
  padding: 7px 10px;
  border-bottom: 1px solid var(--grid);
  white-space: nowrap;
  color: var(--ink-secondary);
}
table.data td.strong { color: var(--ink); font-weight: 550; }
table.data tr:hover td { background: var(--accent-wash); }
table.data td.num, table.data th.num { text-align: right; }
table.data td.wrap { white-space: normal; min-width: 260px; }

.chip {
  display: inline-flex;
  align-items: center;
  gap: 5px;
  padding: 2px 8px;
  border-radius: 999px;
  font-size: 11.5px;
  font-weight: 600;
  border: 1px solid transparent;
  white-space: nowrap;
}
.chip::before { content: ""; width: 6px; height: 6px; border-radius: 50%; background: currentColor; }
.chip.good { color: var(--good-ink); background: rgba(12, 163, 12, 0.12); }
.chip.warning { color: var(--serious); background: rgba(236, 131, 90, 0.16); }
.chip.critical { color: var(--critical); background: rgba(208, 59, 59, 0.14); }
.chip.neutral { color: var(--ink-secondary); background: var(--accent-wash); }
.chip.plain::before { display: none; }

/* --------------------------------------------------------------- filters */
.filters {
  display: flex;
  gap: 9px;
  flex-wrap: wrap;
  align-items: center;
  margin-bottom: 12px;
}
.filters label {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  /* A select is as wide as its longest option; on a phone that is wider than
     the screen unless the label is allowed to shrink. */
  min-width: 0;
  max-width: 100%;
  font-size: 12.5px;
  color: var(--ink-secondary);
}
select, input[type="search"], input[type="number"], input[type="text"], input[type="file"] {
  font-family: inherit;
  font-size: 12.5px;
  color: var(--ink);
  background: var(--surface-raised);
  border: 1px solid var(--border-strong);
  border-radius: var(--radius-sm);
  padding: 5px 8px;
  max-width: 100%;
  min-width: 0;
}
select:focus, input:focus { outline: 2px solid var(--accent); outline-offset: 1px; }

button.btn {
  font-family: inherit;
  font-size: 12.5px;
  font-weight: 560;
  padding: 6px 12px;
  border-radius: var(--radius-sm);
  border: 1px solid var(--border-strong);
  background: var(--surface-raised);
  color: var(--ink);
  cursor: pointer;
}
button.btn:hover { border-color: var(--accent); color: var(--accent); }
button.btn.primary { background: var(--action-bg); border-color: var(--action-bg); color: #fff; }
button.btn.primary:hover { filter: brightness(1.08); color: #fff; }
a.btn {
  font-size: 12.5px;
  font-weight: 560;
  padding: 6px 12px;
  border-radius: var(--radius-sm);
  border: 1px solid var(--border-strong);
  color: var(--ink);
  display: inline-block;
}
a.btn:hover { border-color: var(--accent); color: var(--accent); text-decoration: none; }

/* --------------------------------------------------------------- banners */
.banner {
  border: 1px solid var(--border);
  border-left: 3px solid var(--series-4);
  background: var(--surface);
  border-radius: var(--radius-sm);
  padding: 11px 14px;
  font-size: 12.5px;
  color: var(--ink-secondary);
  margin-bottom: 16px;
}
.banner strong { color: var(--ink); }
.banner.error { border-left-color: var(--critical); }
.banner code {
  font-family: var(--mono);
  font-size: 11.5px;
  background: var(--accent-wash);
  padding: 1px 5px;
  border-radius: 4px;
}

.note-inline {
  font-size: 12px;
  color: var(--ink-muted);
  margin-top: 8px;
}

.legend { display: flex; gap: 14px; flex-wrap: wrap; font-size: 12px; color: var(--ink-secondary); }
.legend span { display: inline-flex; align-items: center; gap: 6px; }
.legend i { width: 10px; height: 10px; border-radius: 3px; display: inline-block; }

.loading { color: var(--ink-muted); font-size: 12.5px; padding: 18px 0; }

/* --------------------------------------------------------------- matrix */
#matrix { overflow-x: auto; }
table.matrix { border-collapse: separate; border-spacing: 3px; width: 100%; }
table.matrix th {
  font-size: 11.5px;
  color: var(--ink-muted);
  text-transform: uppercase;
  letter-spacing: 0.04em;
  font-weight: 600;
  padding: 4px;
}
table.matrix td {
  border-radius: var(--radius-sm);
  padding: 10px 11px;
  color: #fff;
  vertical-align: top;
  min-width: 118px;
}
table.matrix td .cell-code { font-weight: 700; font-size: 13px; }
table.matrix td .cell-n { font-size: 11.5px; opacity: 1; }
table.matrix td .cell-v { font-size: 12.5px; font-weight: 600; margin-top: 2px; }
table.matrix td.empty { background: var(--grid); color: var(--ink-muted); }

footer.foot {
  max-width: 1520px;
  margin: 0 auto;
  padding: 0 20px 40px;
  color: var(--ink-muted);
  font-size: 12px;
}