/* ==========================================================================
   ehs-benchmarks — industrial design system
   Pine green on bone paper. Archivo display, IBM Plex Mono for all data.
   2px rules, zero radius. Light and dark via custom properties.
   ========================================================================== */

:root {
  --green: #0F7A52;
  --green-soft: #0F7A521a;
  --paper: #F7F7F3;
  --paper-2: #EFEFE9;
  --ink: #12140F;
  --ink-2: #4A4E46;
  --ink-3: #7C8078;
  --rule: #12140F;
  --rule-soft: #C9CCC3;
  --warn: #A8501B;
  --bad: #8C2F1D;
  --grid: #DEE0D8;
}

:root[data-theme='dark'] {
  --green: #3FCB88;
  --green-soft: #3FCB8822;
  --paper: #0A0D0B;
  --paper-2: #131714;
  --ink: #F2F4EF;
  --ink-2: #A8AEA4;
  --ink-3: #6F756C;
  --rule: #F2F4EF;
  --rule-soft: #2C322D;
  --warn: #E39B5F;
  --bad: #E8735A;
  --grid: #1E241F;
}

@media (prefers-color-scheme: dark) {
  :root:not([data-theme='light']) {
    --green: #3FCB88;
    --green-soft: #3FCB8822;
    --paper: #0A0D0B;
    --paper-2: #131714;
    --ink: #F2F4EF;
    --ink-2: #A8AEA4;
    --ink-3: #6F756C;
    --rule: #F2F4EF;
    --rule-soft: #2C322D;
    --warn: #E39B5F;
    --bad: #E8735A;
    --grid: #1E241F;
  }
}

* { box-sizing: border-box; }

html { -webkit-text-size-adjust: 100%; }

body {
  margin: 0;
  background: var(--paper);
  color: var(--ink);
  font-family: 'IBM Plex Mono', ui-monospace, 'Cascadia Mono', Consolas, monospace;
  font-size: 14px;
  line-height: 1.5;
}

h1, h2, h3, .display {
  font-family: Archivo, 'Archivo Expanded', system-ui, sans-serif;
  font-variation-settings: 'wdth' 125, 'wght' 900;
  font-weight: 900;
  letter-spacing: -0.01em;
  line-height: 1.02;
  margin: 0;
  text-transform: uppercase;
}

h1 { font-size: clamp(30px, 6vw, 62px); }
h2 { font-size: clamp(20px, 3.2vw, 30px); }
h3 { font-size: 15px; letter-spacing: 0.02em; }

a { color: var(--green); text-decoration: none; border-bottom: 2px solid var(--green-soft); }
a:hover { border-bottom-color: var(--green); }

.wrap { max-width: 1180px; margin: 0 auto; padding: 0 20px; }

/* ---------- crumb bar: back to the portfolio ---------- */

.crumbbar {
  position: sticky;
  top: 0;
  z-index: 40;
  background: var(--paper);
  border-bottom: 2px solid var(--rule);
}
.crumbbar-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 14px;
  padding: 11px 20px;
}
.crumb {
  display: inline-flex;
  align-items: center;
  gap: 9px;
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--ink);
  border-bottom: 0;
}
.crumb:hover { border-bottom: 0; }
.crumb .brand-dot { width: 12px; height: 12px; background: var(--green); flex: none; }
.crumb-back { color: var(--ink-2); transition: color 0.15s; }
.crumb:hover .crumb-back { color: var(--green); }
.crumb-sep { color: var(--ink-3); }
.crumb-here { color: var(--ink); }

.crumb-right { display: flex; align-items: center; gap: 10px; }

.data-chip {
  font-size: 10px;
  font-weight: 600;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--green);
  border: 2px solid var(--green);
  padding: 3px 8px;
  white-space: nowrap;
}

/* Theme toggle: shows the mode it will switch TO, so the icon is an action
   rather than a status. Sun means "go light", moon means "go dark". */
.toggle {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 32px;
  height: 32px;
  flex: none;
  background: var(--paper);
  border: 2px solid var(--rule);
  border-radius: 0;
  color: var(--ink);
  cursor: pointer;
  transition: background 0.15s, color 0.15s, border-color 0.15s;
}
.toggle:hover { background: var(--green); border-color: var(--green); color: var(--paper); }
:root[data-theme='dark'] .toggle:hover { color: #06120C; }
.toggle svg { width: 15px; height: 15px; }

/* Light is the default, so offer the moon. */
.icon-sun { display: none; }
.icon-moon { display: block; }
/* System dark with no explicit choice: offer the sun. */
@media (prefers-color-scheme: dark) {
  :root:not([data-theme='light']) .icon-sun { display: block; }
  :root:not([data-theme='light']) .icon-moon { display: none; }
}
/* An explicit choice always wins over the system preference. */
:root[data-theme='dark'] .icon-sun { display: block; }
:root[data-theme='dark'] .icon-moon { display: none; }
:root[data-theme='light'] .icon-sun { display: none; }
:root[data-theme='light'] .icon-moon { display: block; }

/* ---------- series nav: previous report / back home ---------- */

.series-nav {
  display: grid;
  grid-template-columns: 1fr 1fr;
  border: 2px solid var(--rule);
  margin: 8px 0 32px;
}
.sn-item {
  display: block;
  padding: 18px 20px;
  border-bottom: 0;
  border-right: 2px solid var(--rule-soft);
  transition: background 0.15s;
}
.sn-item:last-child { border-right: 0; }
.sn-item:hover { background: var(--green-soft); border-bottom: 0; }
.sn-home { text-align: right; }
.sn-dir {
  display: block;
  font-size: 10px;
  font-weight: 600;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--green);
  margin-bottom: 6px;
}
.sn-t {
  display: block;
  font-family: Archivo, system-ui, sans-serif;
  font-variation-settings: 'wdth' 125, 'wght' 900;
  font-size: 17px;
  text-transform: uppercase;
  color: var(--ink);
  line-height: 1.1;
}

@media (max-width: 560px) {
  .series-nav { grid-template-columns: 1fr; }
  .sn-item { border-right: 0; border-bottom: 2px solid var(--rule-soft); }
  .sn-item:last-child { border-bottom: 0; }
  .sn-home { text-align: left; }
  .data-chip { display: none; }
}

/* ---------- masthead ---------- */

header.masthead {
  border-bottom: 2px solid var(--rule);
  padding: 22px 0 16px;
}
.masthead-row { display: flex; align-items: flex-start; justify-content: space-between; gap: 20px; flex-wrap: wrap; }
.brand-mark { color: var(--green); }
.tagline {
  color: var(--ink-2);
  max-width: 62ch;
  margin-top: 10px;
  font-size: 13px;
}
.meta-strip {
  font-size: 11px;
  color: var(--ink-3);
  text-transform: uppercase;
  letter-spacing: 0.08em;
  margin-top: 6px;
}

/* ---------- nav ---------- */

nav.tabs {
  display: flex;
  gap: 0;
  border-bottom: 2px solid var(--rule);
  overflow-x: auto;
}
nav.tabs a {
  font-size: 11px;
  text-transform: uppercase;
  letter-spacing: 0.09em;
  padding: 13px 16px;
  border: 0;
  border-right: 2px solid var(--rule-soft);
  color: var(--ink-2);
  white-space: nowrap;
}
nav.tabs a:hover { background: var(--paper-2); color: var(--ink); }
nav.tabs a[aria-current='page'] {
  background: var(--green);
  color: var(--paper);
  font-weight: 600;
}
:root[data-theme='dark'] nav.tabs a[aria-current='page'] { color: #06120C; }

/* ---------- layout ---------- */

section.view { padding: 32px 0 64px; display: none; }
section.view.active { display: block; }

.section-head {
  border-bottom: 2px solid var(--rule);
  padding-bottom: 8px;
  margin: 40px 0 18px;
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 14px;
  flex-wrap: wrap;
}
.section-head:first-of-type { margin-top: 8px; }
.section-note { font-size: 11px; color: var(--ink-3); text-transform: uppercase; letter-spacing: 0.07em; }

.prose { max-width: 74ch; color: var(--ink-2); }
.prose p { margin: 0 0 12px; }
.prose strong { color: var(--ink); }

/* ---------- stat tiles ---------- */

.tiles { display: grid; grid-template-columns: repeat(auto-fit, minmax(215px, 1fr)); gap: 0; border: 2px solid var(--rule); }
.tile { padding: 18px; border-right: 2px solid var(--rule-soft); border-bottom: 2px solid var(--rule-soft); }
.tile:last-child { border-right: 0; }
.tile-label { font-size: 10px; text-transform: uppercase; letter-spacing: 0.1em; color: var(--ink-3); }
.tile-value {
  font-family: Archivo, system-ui, sans-serif;
  font-variation-settings: 'wdth' 125, 'wght' 900;
  font-size: 36px;
  line-height: 1.05;
  margin: 6px 0 4px;
  color: var(--green);
}
.tile-value.plain { color: var(--ink); }
.tile-value.alarm { color: var(--bad); }
.tile-sub { font-size: 11px; color: var(--ink-2); }

/* ---------- drill-down disclosure ---------- */

details.drill { border-top: 2px solid var(--rule-soft); margin-top: 10px; }
details.drill > summary {
  cursor: pointer;
  list-style: none;
  font-size: 10px;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--green);
  padding: 8px 0 6px;
  user-select: none;
}
details.drill > summary::-webkit-details-marker { display: none; }
details.drill > summary::before { content: '▸ '; }
details.drill[open] > summary::before { content: '▾ '; }
details.drill > summary:hover { color: var(--ink); }
.drill-body { padding-bottom: 12px; }

/* ---------- tables ---------- */

table { width: 100%; border-collapse: collapse; font-size: 12px; }
th {
  text-align: left;
  font-size: 10px;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--ink-3);
  font-weight: 400;
  border-bottom: 2px solid var(--rule);
  padding: 7px 9px;
  white-space: nowrap;
}
td { padding: 7px 9px; border-bottom: 1px solid var(--rule-soft); vertical-align: top; }
td.num, th.num { text-align: right; font-variant-numeric: tabular-nums; }
tbody tr:hover { background: var(--paper-2); }
.scroll-x { overflow-x: auto; border: 2px solid var(--rule); }

/* ---------- forms ---------- */

.form-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(180px, 1fr)); gap: 14px; }
label.field { display: block; }
label.field span {
  display: block;
  font-size: 10px;
  text-transform: uppercase;
  letter-spacing: 0.09em;
  color: var(--ink-3);
  margin-bottom: 5px;
}
input, select {
  width: 100%;
  font-family: inherit;
  font-size: 14px;
  padding: 9px 10px;
  background: var(--paper);
  color: var(--ink);
  border: 2px solid var(--rule);
  border-radius: 0;
}
input:focus, select:focus { outline: 2px solid var(--green); outline-offset: 1px; }

button.action {
  font-family: inherit;
  font-size: 12px;
  text-transform: uppercase;
  letter-spacing: 0.09em;
  background: var(--green);
  color: var(--paper);
  border: 2px solid var(--green);
  border-radius: 0;
  padding: 11px 20px;
  cursor: pointer;
}
:root[data-theme='dark'] button.action { color: #06120C; }
button.action:hover { background: var(--ink); border-color: var(--ink); color: var(--paper); }

/* ---------- callouts ---------- */

.callout {
  border-left: 6px solid var(--green);
  background: var(--green-soft);
  padding: 14px 16px;
  margin: 16px 0;
}
.callout.warn { border-left-color: var(--warn); background: transparent; border-top: 2px solid var(--rule-soft); border-bottom: 2px solid var(--rule-soft); }
.callout h3 { margin-bottom: 6px; }

/* ---------- charts ---------- */

.chart { width: 100%; height: auto; display: block; }
.chart text { font-family: 'IBM Plex Mono', monospace; font-size: 10px; fill: var(--ink-2); }
.chart .axis { stroke: var(--rule-soft); stroke-width: 2; }
.chart .grid { stroke: var(--grid); stroke-width: 1; }
.chart .bar { fill: var(--green); }
.chart .bar.muted { fill: var(--ink-3); }
.chart .marker { stroke: var(--bad); stroke-width: 3; }
.chart .label-strong { fill: var(--ink); }

.legend { display: flex; gap: 16px; flex-wrap: wrap; font-size: 10px; text-transform: uppercase; letter-spacing: 0.08em; color: var(--ink-3); margin-top: 8px; }
.legend i { display: inline-block; width: 12px; height: 12px; margin-right: 5px; vertical-align: -1px; }

/* ---------- results ---------- */

.result-card { border: 2px solid var(--rule); padding: 20px; margin-top: 18px; }
.result-rank {
  font-family: Archivo, system-ui, sans-serif;
  font-variation-settings: 'wdth' 125, 'wght' 900;
  font-size: 58px;
  line-height: 1;
  color: var(--green);
}
.result-rank sup { font-size: 22px; }

.search-result { border-bottom: 2px solid var(--rule-soft); padding: 12px 0; }
.search-result-head { display: flex; justify-content: space-between; align-items: baseline; gap: 14px; flex-wrap: wrap; }
.search-name { font-size: 15px; color: var(--ink); font-weight: 600; }
.pill {
  display: inline-block;
  font-size: 10px;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  border: 2px solid var(--rule-soft);
  padding: 2px 7px;
  color: var(--ink-2);
  margin-right: 6px;
}
.pill.green { border-color: var(--green); color: var(--green); }

.muted { color: var(--ink-3); }
.empty { color: var(--ink-3); padding: 20px 0; font-size: 13px; }

footer.site {
  border-top: 2px solid var(--rule);
  padding: 24px 0 48px;
  font-size: 11px;
  color: var(--ink-3);
}

@media (max-width: 640px) {
  .tile { border-right: 0; }
  .result-rank { font-size: 44px; }
}