/* Sewer Watch — paper-and-ink editorial dashboard. */

:root {
  --paper: #f4ede0;
  --paper-2: #efe7d6;
  --paper-3: #e7debe;
  --card: #faf5e8;
  --ink: #1c2530;
  --ink-2: #2b3540;
  --ink-soft: #4d5762;
  --ink-mute: #7a838d;
  --hair: rgba(28, 37, 48, 0.18);
  --hair-soft: rgba(28, 37, 48, 0.09);
  --hair-faint: rgba(28, 37, 48, 0.05);
  --sage: #4f6f4a;
  --teal: #2c6863;
  --amber: #a37020;
  --rust: #a4482a;
  --crimson: #882f24;
  --steel: #3d5878;

  --chart-pressure: #1f3552;
  --chart-pressure-fill: rgba(31, 53, 82, 0.10);
  --chart-current: #2c6863;
  --chart-current-fill: rgba(44, 104, 99, 0.12);
  --chart-bar-blue: rgba(61, 88, 120, 0.55);
  --chart-bar-rust: rgba(164, 72, 42, 0.55);
  --chart-amber-fill: rgba(163, 112, 32, 0.16);
  --chart-tooltip-bg: #1c2530;
  --chart-tooltip-fg: #f4ede0;
  --chart-tooltip-border: rgba(244, 237, 224, 0.18);

  --bg-radial-1: rgba(255, 255, 255, 0.55);
  --bg-radial-2: rgba(164, 72, 42, 0.05);

  --serif: "Iowan Old Style", "Source Serif 4", "Charter", "Palatino Linotype",
    Georgia, "Times New Roman", serif;
  --sans: -apple-system, BlinkMacSystemFont, "Segoe UI", "Inter", Roboto,
    "Helvetica Neue", Arial, sans-serif;
  --mono: ui-monospace, "SF Mono", "Menlo", "IBM Plex Mono", "JetBrains Mono",
    Consolas, monospace;

  --shell: 1400px;
  --pad-x: clamp(16px, 3.6vw, 56px);
}

[data-theme="dark"] {
  --paper: #11171f;
  --paper-2: #161e28;
  --paper-3: #1c2530;
  --card: #131b25;
  --ink: #ede2cc;
  --ink-2: #d8cdb6;
  --ink-soft: #b3a78f;
  --ink-mute: #847a68;
  --hair: rgba(237, 226, 204, 0.18);
  --hair-soft: rgba(237, 226, 204, 0.09);
  --hair-faint: rgba(237, 226, 204, 0.05);
  --sage: #94b58c;
  --teal: #6cb1aa;
  --amber: #d6a155;
  --rust: #d68466;
  --crimson: #d97a6e;
  --steel: #94afd1;

  --chart-pressure: #88b1d8;
  --chart-pressure-fill: rgba(136, 177, 216, 0.16);
  --chart-current: #6cb1aa;
  --chart-current-fill: rgba(108, 177, 170, 0.16);
  --chart-bar-blue: rgba(149, 175, 210, 0.55);
  --chart-bar-rust: rgba(214, 132, 102, 0.55);
  --chart-amber-fill: rgba(214, 161, 85, 0.20);
  --chart-tooltip-bg: #ede2cc;
  --chart-tooltip-fg: #11171f;
  --chart-tooltip-border: rgba(17, 23, 31, 0.20);

  --bg-radial-1: rgba(148, 175, 209, 0.06);
  --bg-radial-2: rgba(214, 132, 102, 0.06);
}

* { box-sizing: border-box; }

/* CSS-grid items default to min-width: auto (= min-content), which lets a
   wide inner element (like the inline-styled .history-track) push every
   sibling section out to the same width and overflow the whole page. We
   reset min-width on the layout containers and their direct children so
   each section/card sizes to its grid column, not to its widest descendant.
   Anything that still legitimately needs to scroll (history viewer, tables,
   masthead-meta) does so inside its own overflow:auto container. */
.page,
.page > *,
.card,
.card > *,
.trace-card,
.trace-card > *,
.grid > *,
.verdict > *,
.history-frame,
.history-scroll,
.history-track,
.chart-frame,
.system-grid > *,
.health-detail > *,
.band-list > li > * {
  min-width: 0;
}

html { color-scheme: light; }
html[data-theme="dark"] { color-scheme: dark; }
html, body { overflow-x: clip; }

body {
  margin: 0;
  background: var(--paper);
  color: var(--ink);
  font-family: var(--sans);
  font-size: 16px;
  line-height: 1.55;
  font-feature-settings: "tnum" on, "lnum" on, "ss01" on;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  background-image:
    radial-gradient(60rem 30rem at 12% -8%, var(--bg-radial-1), transparent 70%),
    radial-gradient(50rem 30rem at 95% 110%, var(--bg-radial-2), transparent 70%);
  min-height: 100vh;
  transition: background-color 0.18s ease, color 0.18s ease;
}

a { color: var(--steel); text-decoration: underline; text-underline-offset: 2px; }
a:hover { color: var(--rust); }

.skip-link {
  position: absolute;
  left: -1000px; top: -1000px;
  background: var(--ink);
  color: var(--paper);
  padding: 8px 12px;
  border-radius: 2px;
  z-index: 999;
}
.skip-link:focus { left: 16px; top: 16px; }

/* ─── Masthead ─────────────────────────────────────────────────── */

.masthead {
  border-bottom: 1px solid var(--ink);
  padding: 28px var(--pad-x) 18px;
  background:
    linear-gradient(to bottom, transparent, rgba(28, 37, 48, 0.02)),
    var(--paper);
}

.masthead-row {
  max-width: var(--shell);
  margin: 0 auto;
  display: grid;
  grid-template-columns: auto minmax(0, 1fr) auto auto;
  align-items: end;
  gap: 16px 24px;
}

.masthead-mark {
  display: grid;
  gap: 4px;
  width: 28px;
}
.mark-line {
  display: block;
  height: 2px;
  background: var(--ink);
  border-radius: 1px;
}
.mark-line-short { width: 60%; background: var(--rust); }

.masthead-title {
  display: grid;
  align-content: end;
  gap: 4px;
}
.masthead-eyebrow {
  font-family: var(--serif);
  font-size: clamp(1.7rem, 3.2vw, 2.4rem);
  font-weight: 600;
  line-height: 1;
  letter-spacing: -0.01em;
}
.masthead-sub {
  font-size: 0.82rem;
  color: var(--ink-soft);
  letter-spacing: 0.04em;
  text-transform: uppercase;
}

.masthead-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 18px;
  margin: 0;
  justify-content: flex-end;
}
.masthead-meta > div {
  display: grid;
  gap: 2px;
  text-align: right;
}
.masthead-meta dt {
  margin: 0;
  font-size: 0.68rem;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--ink-mute);
}
.masthead-meta dd {
  margin: 0;
  font-family: var(--mono);
  font-size: 0.86rem;
  color: var(--ink);
  white-space: nowrap;
}

/* ─── Theme toggle ─────────────────────────────────────────────── */

.theme-toggle {
  align-self: end;
  display: inline-flex;
  align-items: center;
  gap: 7px;
  padding: 5px 10px 5px 9px;
  font-family: var(--sans);
  font-size: 0.72rem;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--ink-soft);
  background: var(--paper-2);
  border: 1px solid var(--hair);
  border-radius: 999px;
  cursor: pointer;
  transition: color 0.15s ease, background-color 0.15s ease, border-color 0.15s ease;
}
.theme-toggle:hover {
  color: var(--ink);
  border-color: var(--ink-soft);
}
.theme-toggle:focus-visible {
  outline: 2px solid var(--steel);
  outline-offset: 2px;
}
.theme-toggle svg {
  width: 14px;
  height: 14px;
  display: block;
  color: currentColor;
}
.theme-toggle .theme-label {
  font-variant-caps: all-small-caps;
}

/* ─── Page shell ───────────────────────────────────────────────── */

.page {
  max-width: var(--shell);
  margin: 0 auto;
  padding: 32px var(--pad-x) 64px;
  display: grid;
  gap: 40px;
}

/* Section heads (for any section that exposes .card-head or
   .trace-head). Reused styling: kicker is small caps tracked, then
   serif heading with optional inline meta. */
.kicker {
  display: inline-block;
  font-size: 0.7rem;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--ink-mute);
  margin-bottom: 6px;
}

h1, h2, h3, h4 {
  font-family: var(--serif);
  font-weight: 600;
  letter-spacing: -0.005em;
  color: var(--ink);
  margin: 0;
  line-height: 1.15;
}

h2 { font-size: clamp(1.4rem, 2.4vw, 1.8rem); }
h3 { font-size: 1.18rem; }

.num { font-variant-numeric: tabular-nums; font-feature-settings: "tnum" on; }

/* ─── Verdict (hero) ───────────────────────────────────────────── */

.verdict {
  display: grid;
  grid-template-columns: minmax(0, 1.1fr) minmax(0, 0.9fr);
  gap: 0;
  border-top: 2px solid var(--ink);
  border-bottom: 1px solid var(--hair);
}

.verdict-status {
  padding: 36px 36px 36px 0;
  position: relative;
  border-right: 1px solid var(--hair);
}

.verdict-tag {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 5px 10px 5px 12px;
  font-size: 0.72rem;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--ink-soft);
  background: var(--paper-2);
  border: 1px solid var(--hair);
  border-radius: 999px;
  margin-bottom: 18px;
}
.verdict-tag::before {
  content: "";
  width: 8px; height: 8px;
  border-radius: 50%;
  background: var(--ink-mute);
  display: inline-block;
}

.verdict-headline {
  font-family: var(--serif);
  font-size: clamp(2.1rem, 4.4vw, 3.4rem);
  line-height: 1.05;
  letter-spacing: -0.012em;
  font-weight: 600;
  color: var(--ink);
  text-wrap: balance;
}

.verdict-detail {
  margin: 18px 0 0;
  max-width: 38em;
  font-size: 1.02rem;
  color: var(--ink-soft);
  line-height: 1.5;
}

.verdict-meta {
  margin: 26px 0 0;
  display: flex;
  flex-wrap: wrap;
  gap: 14px 18px;
  font-family: var(--mono);
  font-size: 0.86rem;
  color: var(--ink);
}
.meta-item {
  display: inline-flex;
  align-items: baseline;
  gap: 8px;
}
.meta-key {
  font-family: var(--sans);
  font-size: 0.7rem;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--ink-mute);
}
.meta-val { font-variant-numeric: tabular-nums; }
.meta-divider { color: var(--hair); }

/* Verdict accent by data-level (driven by JS) */
.verdict-status[data-level="quiet"] .verdict-tag::before,
.verdict-status[data-level="low"] .verdict-tag::before,
.verdict-status[data-level="normal"] .verdict-tag::before,
.verdict-status[data-level="normal_flush"] .verdict-tag::before { background: var(--sage); }

.verdict-status[data-level="watch"] .verdict-tag::before,
.verdict-status[data-level="baseline_shift"] .verdict-tag::before { background: var(--amber); }

.verdict-status[data-level="elevated"] .verdict-tag::before,
.verdict-status[data-level="high"] .verdict-tag::before { background: var(--rust); }

.verdict-status[data-level="critical"] .verdict-tag::before,
.verdict-status[data-level="alarm"] .verdict-tag::before { background: var(--crimson); }

.verdict-status[data-level="quiet"]::after,
.verdict-status[data-level="low"]::after,
.verdict-status[data-level="normal"]::after,
.verdict-status[data-level="normal_flush"]::after,
.verdict-status[data-level="watch"]::after,
.verdict-status[data-level="baseline_shift"]::after,
.verdict-status[data-level="elevated"]::after,
.verdict-status[data-level="high"]::after,
.verdict-status[data-level="critical"]::after,
.verdict-status[data-level="alarm"]::after {
  content: "";
  position: absolute;
  left: 0; bottom: -1px;
  height: 3px; width: 64px;
  background: var(--ink-mute);
}
.verdict-status[data-level="quiet"]::after,
.verdict-status[data-level="low"]::after,
.verdict-status[data-level="normal"]::after,
.verdict-status[data-level="normal_flush"]::after { background: var(--sage); }
.verdict-status[data-level="watch"]::after,
.verdict-status[data-level="baseline_shift"]::after { background: var(--amber); }
.verdict-status[data-level="elevated"]::after,
.verdict-status[data-level="high"]::after { background: var(--rust); }
.verdict-status[data-level="critical"]::after,
.verdict-status[data-level="alarm"]::after { background: var(--crimson); }

/* Readouts column */
.verdict-readouts {
  padding: 36px 0 36px 36px;
  display: grid;
  grid-template-columns: 1fr 1fr;
  grid-template-rows: 1fr 1fr;
  gap: 0;
}
.readout {
  padding: 6px 14px;
  border-right: 1px dashed var(--hair-soft);
  border-bottom: 1px dashed var(--hair-soft);
  display: grid;
  align-content: start;
  gap: 6px;
}
.readout:nth-child(2n) { border-right: 0; }
.readout:nth-child(n+3) { border-bottom: 0; }

.readout-key {
  font-size: 0.7rem;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--ink-mute);
}
.readout-val {
  font-family: var(--serif);
  font-size: clamp(1.6rem, 3vw, 2.1rem);
  line-height: 1.05;
  font-weight: 500;
  color: var(--ink);
}
.readout-num { font-variant-numeric: tabular-nums; }
.readout-foot {
  font-size: 0.85rem;
  color: var(--ink-soft);
  line-height: 1.35;
}

/* ─── Pressure trace (primary chart) ───────────────────────────── */

.trace-card {
  background: var(--card);
  border: 1px solid var(--hair);
  border-radius: 4px;
  padding: 22px 22px 24px;
  position: relative;
  display: grid;
  gap: 14px;
  transition: opacity 0.18s ease;
}
.trace-card::before {
  content: "";
  position: absolute;
  left: 22px; right: 22px; top: 0;
  height: 2px;
  background: var(--ink);
  opacity: 0.85;
}
.trace-card[data-stale="severe"]::before {
  background: var(--amber);
  opacity: 0.9;
}

.trace-head {
  display: flex;
  align-items: end;
  justify-content: space-between;
  gap: 16px 24px;
  flex-wrap: wrap;
}
.trace-title { display: grid; gap: 2px; }

.meta-pill {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 4px 10px;
  font-size: 0.78rem;
  font-family: var(--mono);
  color: var(--ink-soft);
  background: var(--paper-2);
  border: 1px solid var(--hair);
  border-radius: 999px;
  white-space: nowrap;
}
.meta-pill[hidden] { display: none; }

/* Freshness pill = the live/stale heartbeat for the chart */
.meta-pill-fresh::before {
  content: "";
  width: 7px; height: 7px;
  border-radius: 50%;
  background: var(--ink-mute);
  display: inline-block;
}
.meta-pill-fresh[data-state="live"] {
  color: var(--sage);
  border-color: rgba(79, 111, 74, 0.45);
  background: rgba(79, 111, 74, 0.08);
}
.meta-pill-fresh[data-state="live"]::before { background: var(--sage); }
.meta-pill-fresh[data-state="stale"] {
  color: var(--amber);
  border-color: rgba(163, 112, 32, 0.45);
  background: rgba(163, 112, 32, 0.08);
}
.meta-pill-fresh[data-state="stale"]::before { background: var(--amber); }
.meta-pill-fresh[data-state="severe"] {
  color: var(--crimson);
  border-color: rgba(136, 47, 36, 0.5);
  background: rgba(136, 47, 36, 0.10);
}
.meta-pill-fresh[data-state="severe"]::before { background: var(--crimson); }
.meta-pill-fresh[data-state="error"] {
  color: var(--crimson);
  border-color: rgba(136, 47, 36, 0.5);
  background: rgba(136, 47, 36, 0.10);
}
.meta-pill-fresh[data-state="error"]::before { background: var(--crimson); }
[data-theme="dark"] .meta-pill-fresh[data-state="live"] {
  background: rgba(148, 181, 140, 0.10);
  border-color: rgba(148, 181, 140, 0.4);
}
[data-theme="dark"] .meta-pill-fresh[data-state="stale"] {
  background: rgba(214, 161, 85, 0.12);
  border-color: rgba(214, 161, 85, 0.4);
}
[data-theme="dark"] .meta-pill-fresh[data-state="severe"],
[data-theme="dark"] .meta-pill-fresh[data-state="error"] {
  background: rgba(217, 122, 110, 0.12);
  border-color: rgba(217, 122, 110, 0.45);
}

.legend {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  flex-wrap: wrap;
  gap: 8px 18px;
  font-size: 0.82rem;
  color: var(--ink-soft);
}
.legend li {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-family: var(--mono);
  font-variant-numeric: tabular-nums;
}
.legend .swatch {
  width: 20px; height: 0;
  border-top: 2px dashed currentColor;
  display: inline-block;
}
.legend .swatch-solid {
  width: 20px;
  height: 8px;
  background: currentColor;
  border-radius: 1px;
  border-top: 0;
}

/* ─── Cards & grids ────────────────────────────────────────────── */

.grid {
  display: grid;
  gap: 24px;
}
.grid-two { grid-template-columns: repeat(2, minmax(0, 1fr)); }
.grid-three { grid-template-columns: repeat(3, minmax(0, 1fr)); }

.card {
  background: var(--card);
  border: 1px solid var(--hair);
  border-radius: 4px;
  padding: 22px 22px 24px;
  position: relative;
  display: grid;
  gap: 14px;
}
.card::before {
  content: "";
  position: absolute;
  left: 22px; right: 22px; top: 0;
  height: 2px;
  background: var(--ink);
  opacity: 0.85;
}

.card-head {
  display: grid;
  gap: 2px;
  margin-bottom: 4px;
}

/* Chart frames */
.chart-frame {
  position: relative;
  width: 100%;
  height: 240px;
  background:
    linear-gradient(to bottom, var(--paper), var(--card));
  border: 1px solid var(--hair-soft);
  border-radius: 2px;
  padding: 8px 10px 6px;
}
.chart-frame-mid { height: 240px; }
.chart-frame-tall { height: 360px; }
.chart-frame canvas {
  display: block;
  width: 100% !important;
  height: 100% !important;
}

/* ─── Tables ──────────────────────────────────────────────────── */

.table-scroll {
  width: 100%;
  overflow-x: auto;
  overflow-y: hidden;
  -webkit-overflow-scrolling: touch;
  scrollbar-width: thin;
  scrollbar-color: var(--ink-mute) transparent;
}
.table-scroll::-webkit-scrollbar { height: 8px; }
.table-scroll::-webkit-scrollbar:vertical { width: 8px; }
.table-scroll::-webkit-scrollbar-thumb {
  background: var(--ink-mute);
  border-radius: 4px;
}
.table-scroll::-webkit-scrollbar-track { background: transparent; }

.card-flush-list .table-scroll {
  max-height: 350px;
  overflow-y: auto;
  overscroll-behavior: contain;
}
.card-flush-list .flush-table thead th {
  position: sticky;
  top: 0;
  z-index: 1;
  background: var(--card);
}

/* Mobile affordance: subtle scroll shadows hint that columns are clipped.
   The two linear-gradient "covers" (background-attachment: local) ride with
   the content and hide the radial-gradient shadows when the corresponding
   edge is fully in view; the shadows reveal themselves only when content
   overflows on that side. Uses --card / --hair so it adapts to both themes. */
@media (max-width: 720px) {
  .table-scroll {
    background:
      linear-gradient(to right, var(--card) 30%, transparent) left center / 28px 100% no-repeat local,
      linear-gradient(to left,  var(--card) 30%, transparent) right center / 28px 100% no-repeat local,
      radial-gradient(farthest-side at 0 50%, var(--hair), transparent) left center / 10px 100% no-repeat scroll,
      radial-gradient(farthest-side at 100% 50%, var(--hair), transparent) right center / 10px 100% no-repeat scroll;
  }
}

.flush-table,
.stats-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.92rem;
}
.flush-table { min-width: 460px; }
.stats-table { min-width: 580px; }
.flush-table th,
.flush-table td,
.stats-table th,
.stats-table td {
  padding: 8px 10px;
  text-align: left;
  border-bottom: 1px solid var(--hair-soft);
  vertical-align: top;
}
.flush-table th,
.stats-table th {
  font-family: var(--sans);
  font-weight: 600;
  font-size: 0.7rem;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--ink-mute);
  border-bottom: 1px solid var(--hair);
  padding-top: 4px;
}
.flush-table th.num,
.flush-table td.num,
.stats-table th.num,
.stats-table td.num {
  text-align: right;
  font-family: var(--mono);
  font-variant-numeric: tabular-nums;
}
.flush-table .unit {
  color: var(--ink-mute);
  font-size: 0.78em;
  letter-spacing: 0.04em;
  margin-left: 3px;
}
.flush-table tr:last-child td,
.stats-table tr:last-child td { border-bottom: 0; }
.flush-table .empty,
.stats-table .empty,
.event-list .empty {
  text-align: center;
  color: var(--ink-mute);
  font-style: italic;
  padding: 22px 0;
}

/* state cells inline */
.cell-elev { color: var(--rust); font-weight: 500; }
.cell-watch { color: var(--amber); font-weight: 500; }
.cell-quiet { color: var(--sage); font-weight: 500; }
.cell-crit { color: var(--crimson); font-weight: 600; }

/* ─── Bands list (operating ranges) ───────────────────────────── */

.band-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 0;
  counter-reset: band;
}
.band-list li {
  counter-increment: band;
  display: grid;
  grid-template-columns: 36px minmax(0, 1.1fr) auto;
  align-items: baseline;
  gap: 16px;
  padding: 14px 4px;
  border-bottom: 1px solid var(--hair-soft);
}
.band-list li:last-child { border-bottom: 0; }
.band-list li::before {
  content: counter(band, decimal-leading-zero);
  font-family: var(--mono);
  font-size: 0.85rem;
  color: var(--ink-mute);
  letter-spacing: 0.05em;
}
.band-name {
  font-family: var(--serif);
  font-size: 1.02rem;
  font-weight: 600;
  color: var(--ink);
  margin-bottom: 2px;
  display: block;
}
.band-desc {
  font-size: 0.88rem;
  color: var(--ink-soft);
  margin: 0;
  line-height: 1.45;
}
.band-range {
  font-family: var(--mono);
  font-size: 0.86rem;
  font-variant-numeric: tabular-nums;
  color: var(--ink);
  background: var(--paper-2);
  border: 1px solid var(--hair-soft);
  border-radius: 999px;
  padding: 4px 12px;
  white-space: nowrap;
}
.band-list li[data-key="quiet_pipe"] .band-range { color: var(--sage); }
.band-list li[data-key="normal_flush"] .band-range { color: var(--teal); }
.band-list li[data-key="watch"] .band-range { color: var(--amber); }
.band-list li[data-key="elevated"] .band-range { color: var(--rust); }
.band-list li[data-key="alarm"] .band-range,
.band-list li[data-key="critical"] .band-range { color: var(--crimson); }

/* ─── Health cards ────────────────────────────────────────────── */

.health-card { gap: 8px; }
.health-card h3 {
  font-size: 1.1rem;
}
.health-body {
  margin: 0;
  font-size: 0.94rem;
  color: var(--ink-soft);
  line-height: 1.5;
}

.health-detail {
  margin: 6px 0 0;
  display: grid;
  grid-template-columns: max-content minmax(0, 1fr);
  column-gap: 16px;
  row-gap: 6px;
  font-size: 0.86rem;
}
.health-detail dt {
  font-size: 0.7rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--ink-mute);
  align-self: center;
}
.health-detail dd {
  margin: 0;
  font-family: var(--mono);
  font-variant-numeric: tabular-nums;
  color: var(--ink);
  align-self: center;
}

/* driver list = health-detail variant with units inline */
.driver-list { row-gap: 10px; }

/* state badges on health card titles */
.health-card[data-state="good"] .kicker::after,
.health-card[data-state="ok"] .kicker::after,
.health-card[data-state="usable"] .kicker::after,
.health-card[data-state="poor"] .kicker::after,
.health-card[data-state="warning"] .kicker::after,
.health-card[data-state="error"] .kicker::after,
.health-card[data-state="stale"] .kicker::after {
  content: "";
  display: inline-block;
  width: 8px; height: 8px;
  border-radius: 50%;
  margin-left: 8px;
  background: var(--ink-mute);
  vertical-align: 1px;
}
.health-card[data-state="good"] .kicker::after,
.health-card[data-state="ok"] .kicker::after,
.health-card[data-state="usable"] .kicker::after { background: var(--sage); }
.health-card[data-state="warning"] .kicker::after,
.health-card[data-state="stale"] .kicker::after { background: var(--amber); }
.health-card[data-state="error"] .kicker::after,
.health-card[data-state="poor"] .kicker::after { background: var(--crimson); }

/* ─── Events list ─────────────────────────────────────────────── */

.events { gap: 8px; }
.event-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 8px;
}
.event-list li {
  padding: 10px 14px;
  background: var(--paper-2);
  border: 1px solid var(--hair-soft);
  border-left: 3px solid var(--ink-mute);
  border-radius: 2px;
  font-size: 0.9rem;
  color: var(--ink);
  display: grid;
  gap: 4px;
}
.event-list li[data-kind="alert"] { border-left-color: var(--rust); }
.event-list li[data-kind="fault"] { border-left-color: var(--amber); }
.event-list li .event-key {
  font-family: var(--sans);
  font-size: 0.7rem;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--ink-mute);
}
.event-list li .event-msg {
  font-family: var(--mono);
  font-size: 0.86rem;
  color: var(--ink);
  white-space: pre-wrap;
  word-break: break-word;
}

/* ─── System dl ───────────────────────────────────────────────── */

.system-grid {
  margin: 0;
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 14px 24px;
}
.system-grid > div {
  display: grid;
  gap: 4px;
  padding: 10px 12px;
  background: var(--paper-2);
  border: 1px solid var(--hair-soft);
  border-radius: 2px;
}
.system-grid dt {
  font-size: 0.68rem;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--ink-mute);
  margin: 0;
}
.system-grid dd {
  margin: 0;
  font-family: var(--mono);
  font-size: 0.88rem;
  font-variant-numeric: tabular-nums;
  color: var(--ink);
  word-break: break-word;
}

/* ─── Colophon ───────────────────────────────────────────────── */

.colophon {
  max-width: var(--shell);
  margin: 0 auto;
  padding: 28px var(--pad-x) 56px;
  border-top: 1px solid var(--ink);
  display: grid;
  gap: 6px;
  font-size: 0.86rem;
  color: var(--ink-soft);
}
.colophon p { margin: 0; max-width: 60em; }
.colophon-meta {
  font-family: var(--mono);
  font-size: 0.78rem;
  color: var(--ink-mute);
}

/* ─── Pressure log controls (range tabs + chart frame) ────────── */

.history-nav {
  display: grid;
  gap: 8px;
  justify-items: end;
}
.control-row {
  display: inline-flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 8px 10px;
}
.control-label {
  font-size: 0.66rem;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--ink-mute);
  font-weight: 600;
  font-family: var(--sans);
  white-space: nowrap;
}

.window-controls {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 3px;
  background: var(--paper-2);
  border: 1px solid var(--hair);
  border-radius: 999px;
}
.window-step,
.window-now {
  appearance: none;
  display: inline-flex;
  align-items: center;
  gap: 4px;
  border: 1px solid transparent;
  background: transparent;
  color: var(--ink-soft);
  font-family: var(--sans);
  font-size: 0.74rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  font-weight: 600;
  padding: 6px 12px;
  border-radius: 999px;
  cursor: pointer;
  font-variant-numeric: tabular-nums;
  transition: color 0.15s ease, border-color 0.15s ease, background-color 0.15s ease, opacity 0.15s ease;
}
.window-step:hover:not([aria-disabled="true"]),
.window-now:hover:not([aria-disabled="true"]) {
  color: var(--ink);
  background: var(--card);
  border-color: var(--hair);
}
.window-step:focus-visible,
.window-now:focus-visible {
  outline: 2px solid var(--steel);
  outline-offset: 1px;
}
.window-step[aria-disabled="true"],
.window-now[aria-disabled="true"] {
  opacity: 0.4;
  cursor: not-allowed;
}
.window-now[data-state="latest"] {
  color: var(--ink-mute);
  background: transparent;
  border-color: transparent;
  cursor: default;
}
.window-now[data-state="shifted"] {
  color: var(--paper);
  background: var(--ink);
  border-color: var(--ink);
}
[data-theme="dark"] .window-now[data-state="shifted"] {
  color: var(--paper);
  background: var(--ink);
}
.window-step-glyph {
  font-size: 1.05rem;
  line-height: 1;
  letter-spacing: 0;
}

.history-controls {
  display: inline-flex;
  flex-wrap: wrap;
  gap: 4px;
  padding: 3px;
  background: var(--paper-2);
  border: 1px solid var(--hair);
  border-radius: 999px;
}
.history-range {
  appearance: none;
  border: 0;
  background: transparent;
  color: var(--ink-soft);
  font-family: var(--sans);
  font-size: 0.74rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  font-weight: 600;
  padding: 6px 12px;
  border-radius: 999px;
  cursor: pointer;
  font-variant-numeric: tabular-nums;
  transition: color 0.15s ease, background-color 0.15s ease;
}
.history-range:hover { color: var(--ink); }
.history-range:focus-visible {
  outline: 2px solid var(--steel);
  outline-offset: 1px;
}
.history-range[aria-selected="true"] {
  background: var(--ink);
  color: var(--paper);
}
[data-theme="dark"] .history-range[aria-selected="true"] {
  background: var(--ink);
  color: var(--paper);
}

.range-label-full { display: inline; }
.range-label-short { display: none; }

.history-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 6px 8px;
  align-items: center;
}
.history-meta .meta-pill { font-size: 0.74rem; }
.meta-pill-window {
  color: var(--ink);
  border-color: var(--ink-soft);
  background: var(--paper-3);
}
.meta-pill-window[data-state="shifted"] {
  border-color: var(--steel);
  color: var(--steel);
  background: rgba(61, 88, 120, 0.08);
}
[data-theme="dark"] .meta-pill-window[data-state="shifted"] {
  background: rgba(148, 175, 209, 0.10);
  border-color: rgba(148, 175, 209, 0.5);
}

.history-frame {
  position: relative;
  width: 100%;
  height: 360px;
  background: linear-gradient(to bottom, var(--paper), var(--card));
  border: 1px solid var(--hair-soft);
  border-radius: 2px;
  transition: filter 0.18s ease, opacity 0.18s ease;
}
.trace-card[data-stale="severe"] .history-frame {
  filter: saturate(0.6);
  opacity: 0.85;
}

.stale-overlay {
  position: absolute;
  top: 10px;
  left: 50%;
  transform: translateX(-50%);
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 6px 12px;
  background: var(--card);
  border: 1px solid var(--amber);
  border-radius: 999px;
  font-family: var(--mono);
  font-size: 0.78rem;
  color: var(--ink);
  box-shadow: 0 1px 0 rgba(28, 37, 48, 0.06), 0 6px 18px rgba(28, 37, 48, 0.08);
  pointer-events: none;
  max-width: calc(100% - 24px);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  z-index: 2;
}
.stale-overlay[hidden] { display: none; }
.stale-overlay-tag {
  font-family: var(--sans);
  font-size: 0.66rem;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--amber);
  font-weight: 600;
  flex: 0 0 auto;
}
.stale-overlay-msg {
  color: var(--ink-soft);
  overflow: hidden;
  text-overflow: ellipsis;
}
.history-scroll {
  height: 100%;
  width: 100%;
  overflow-x: auto;
  overflow-y: hidden;
  -webkit-overflow-scrolling: touch;
  scrollbar-width: thin;
  scrollbar-color: var(--ink-mute) transparent;
}
.history-scroll:focus { outline: none; }
.history-scroll:focus-visible {
  outline: 2px solid var(--steel);
  outline-offset: -2px;
  border-radius: 2px;
}
.history-scroll::-webkit-scrollbar { height: 8px; }
.history-scroll::-webkit-scrollbar-thumb {
  background: var(--ink-mute);
  border-radius: 4px;
}
.history-scroll::-webkit-scrollbar-track { background: transparent; }

.history-track {
  height: 100%;
  min-width: 100%;
  padding: 8px 12px 6px;
  position: relative;
  box-sizing: border-box;
}
.history-track canvas {
  display: block;
  width: 100% !important;
  height: 100% !important;
}

.history-wrap-frame {
  width: 100%;
  margin-top: 10px;
  padding: 8px 10px 10px;
  background: linear-gradient(to bottom, var(--paper), var(--card));
  border: 1px solid var(--hair-soft);
  border-radius: 2px;
  box-sizing: border-box;
}
.history-wrap-frame[hidden] { display: none; }
.history-wrap-frame canvas {
  display: block;
  width: 100%;
  height: 100%;
}

.history-hint {
  font-size: 0.78rem;
  color: var(--ink-mute);
  font-family: var(--mono);
  margin: 0;
}

.flush-hover-tip {
  position: absolute;
  pointer-events: none;
  background: var(--chart-tooltip-bg);
  border: 1px solid var(--chart-tooltip-border);
  border-radius: 4px;
  padding: 5px 8px 6px;
  font-size: 0.7rem;
  font-family: var(--mono);
  letter-spacing: 0.04em;
  line-height: 1.4;
  color: var(--chart-tooltip-fg);
  white-space: pre-line;
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.22);
  z-index: 4;
}
.flush-hover-tip[aria-hidden="true"] { display: none; }
[data-theme="dark"] .flush-hover-tip {
  box-shadow: 0 2px 12px rgba(0, 0, 0, 0.55);
}

/* ─── Status text colors for inline use ───────────────────────── */

.status-good, .status-ok, .status-usable,
.status-quiet, .status-low, .status-normal, .status-normal_flush,
.status-stable, .status-falling { color: var(--sage); }
.status-watch, .status-warning, .status-baseline_shift,
.status-limited, .status-rising, .status-stale { color: var(--amber); }
.status-elevated, .status-high, .status-poor { color: var(--rust); }
.status-critical, .status-error, .status-alarm { color: var(--crimson); }
.status-unknown, .status-insufficient { color: var(--ink-mute); }

/* Stale verdict — surfaces when the snapshot itself has gone old.
   The dot keeps the underlying pressure-level color, but the tag and
   accent line shift to amber to flag that values are not live. */
.verdict-status[data-stale="true"] .verdict-tag,
.verdict-status[data-stale="severe"] .verdict-tag {
  border-color: var(--amber);
  color: var(--amber);
}
.verdict-status[data-stale="severe"] .verdict-tag::before {
  background: var(--amber);
}
.verdict-status[data-stale="severe"]::after {
  background: var(--amber) !important;
}

/* ─── Responsive ──────────────────────────────────────────────── */

@media (max-width: 980px) {
  .verdict {
    grid-template-columns: 1fr;
  }
  .verdict-status {
    border-right: 0;
    border-bottom: 1px solid var(--hair);
    padding: 28px 0;
  }
  .verdict-readouts {
    padding: 28px 0;
  }
  .grid-three { grid-template-columns: repeat(2, minmax(0, 1fr)); }
}

@media (max-width: 720px) {
  .masthead-row {
    grid-template-columns: auto minmax(0, 1fr) auto;
    align-items: start;
  }
  .masthead-meta {
    grid-column: 1 / -1;
    justify-content: flex-start;
  }
  .masthead-meta > div { text-align: left; }
  .theme-toggle {
    grid-column: 3 / 4;
    grid-row: 1;
    align-self: start;
  }

  .grid-two,
  .grid-three { grid-template-columns: 1fr; }

  .verdict-readouts {
    grid-template-columns: 1fr;
    grid-template-rows: auto;
  }
  .readout {
    border-right: 0;
    border-bottom: 1px dashed var(--hair-soft);
    padding: 12px 0;
  }
  .readout:last-child { border-bottom: 0; }

  .band-list li {
    grid-template-columns: 28px minmax(0, 1fr);
  }
  .band-range {
    grid-column: 2 / -1;
    justify-self: start;
    margin-top: 6px;
  }

  .stats-table,
  .flush-table { font-size: 0.85rem; }
  .stats-table th,
  .flush-table th,
  .stats-table td,
  .flush-table td { padding: 8px 6px; }

  .trace-head { align-items: stretch; }
  .history-nav {
    width: 100%;
    justify-items: stretch;
  }
  .control-row {
    width: 100%;
    flex-wrap: nowrap;
    gap: 8px;
  }
  .control-label { flex: 0 0 auto; }
  .history-controls {
    flex: 1 1 auto;
    min-width: 0;
    overflow-x: auto;
    flex-wrap: nowrap;
    justify-content: flex-start;
    scrollbar-width: none;
  }
  .history-controls::-webkit-scrollbar { display: none; }
  .history-range { flex: 0 0 auto; }
  .window-controls {
    flex: 1 1 auto;
    min-width: 0;
    justify-content: space-between;
  }
  .window-step,
  .window-now { flex: 0 1 auto; }
  .history-frame { height: 300px; }
  .stale-overlay { font-size: 0.74rem; padding: 5px 10px; }
}

@media (max-width: 480px) {
  .verdict-headline { font-size: 1.85rem; }
  .readout-val { font-size: 1.4rem; }
  .chart-frame-tall { height: 280px; }
  .chart-frame-mid { height: 220px; }
  .history-frame { height: 260px; }
  .trace-card { padding: 18px 16px 20px; }
  .trace-card::before { left: 16px; right: 16px; }
  .theme-toggle .theme-label { display: none; }
  .theme-toggle { padding: 6px; }
  .theme-toggle svg { width: 16px; height: 16px; }

  /* On narrow phones the Range-size / Time-window label + control pill
     don't fit on a single row inside the trace card, so stack the
     label above the controls and let the pill take the full width. */
  .control-row {
    flex-wrap: wrap;
    row-gap: 4px;
    column-gap: 0;
    min-width: 0;
  }
  .control-label { flex: 0 0 100%; }
  .history-controls,
  .window-controls { width: 100%; flex: 0 0 100%; }

  /* Fit all five pressure-range options across the row without horizontal
     scrolling. Buttons share the row evenly and use the compact labels. */
  .history-controls {
    overflow-x: visible;
    justify-content: space-between;
    gap: 2px;
  }
  .history-range {
    flex: 1 1 0;
    min-width: 0;
    padding: 6px 4px;
    text-align: center;
    letter-spacing: 0.06em;
  }
  .range-label-full { display: none; }
  .range-label-short { display: inline; }

  /* Drop the dynamic range suffix ("24 h" etc.) on narrow phones —
     the active range is already shown in the Range size row above. */
  .window-step-suffix { display: none; }
  .window-step,
  .window-now { padding: 6px 10px; letter-spacing: 0.1em; }
  .window-controls { gap: 4px; }
}

@media (prefers-reduced-motion: no-preference) {
  .page > section,
  .colophon { animation: appear 0.5s ease both; }
  .page > section:nth-child(1) { animation-delay: 0.02s; }
  .page > section:nth-child(2) { animation-delay: 0.06s; }
  .page > section:nth-child(3) { animation-delay: 0.10s; }
  .page > section:nth-child(4) { animation-delay: 0.14s; }
  .page > section:nth-child(5) { animation-delay: 0.18s; }
  .page > section:nth-child(6) { animation-delay: 0.20s; }
  .colophon { animation-delay: 0.24s; }
}

@keyframes appear {
  from { opacity: 0; transform: translateY(6px); }
  to { opacity: 1; transform: translateY(0); }
}

@media print {
  body { background: #fff; }
  .skip-link, .meta-pill, .chart-frame { background: #fff !important; }
}