/* whopaysfor.ai
   CAGE colours: plum ink (#582841) + an orange highlighter (#F99F4E), as on the CAGE website and logo.
   Display: Archivo SemiExpanded (self-hosted). Text: system serif.
   The signature is the highlighter: it marks AI payments on a bank statement, key numbers in the
   text, the wordmark, and links on hover. Chart series use a lighter plum (#80385E) beside the
   paper's orange and blue; see app/pack.py. */

@font-face {
  font-family: "Archivo";
  src: url("/static/fonts/archivo-semiexp-latin.woff2") format("woff2");
  font-weight: 500 800;
  font-style: normal;
  font-display: swap;
  unicode-range: U+0000-00FF, U+0131, U+0152-0153, U+02BB-02BC, U+02C6, U+02DA, U+02DC, U+0304, U+0308,
    U+0329, U+2000-206F, U+20AC, U+2122, U+2191, U+2193, U+2212, U+2215, U+FEFF, U+FFFD;
}
@font-face {
  font-family: "Archivo";
  src: url("/static/fonts/archivo-semiexp-latinext.woff2") format("woff2");
  font-weight: 500 800;
  font-style: normal;
  font-display: swap;
  unicode-range: U+0100-02BA, U+02BD-02C5, U+02C7-02CC, U+02CE-02D7, U+02DD-02FF, U+0304, U+0308, U+0329,
    U+1D00-1DBF, U+1E00-1E9F, U+1EF2-1EFF, U+2020, U+20A0-20AB, U+20AD-20C4, U+2113, U+2C60-2C7F, U+A720-A7FF;
}

:root {
  --ink: #582841;
  --ink-2: #6D3251;
  --series: #80385E;
  --text: #383838;
  --muted: #6B5E66;
  --rule: #E2D8DD;
  --rule-dot: #CBBCC4;
  --tint: #F5F1F3;
  --paper: #FFFFFF;
  --marker: #F99F4E;
  --marker-deep: #F28A2F;
  --field: #8F7F89;
  --green: #177C52;
  --header-h: 4.6rem;
  --focus: #0072B2;
  --error: #B42318;
  --display: "Archivo", "Helvetica Neue", Arial, sans-serif;
  --serif: Charter, "Bitstream Charter", "Sitka Text", Cambria, Georgia, serif;
  --mono: ui-monospace, "SF Mono", SFMono-Regular, Menlo, Consolas, "Liberation Mono", monospace;
  --wrap: 1120px;
  --gutter: clamp(18px, 4vw, 40px);
}

/* ── Base ─────────────────────────────────────────────────────────────── */
*, *::before, *::after { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; scroll-padding-top: calc(var(--header-h) + 1rem); }
body {
  margin: 0;
  font: 400 1.125rem/1.6 var(--serif);
  color: var(--text);
  background: var(--paper);
  text-rendering: optimizeLegibility;
}
img { max-width: 100%; height: auto; }
h1, h2, h3 { font-family: var(--display); color: var(--ink); margin: 0; text-wrap: balance; }
p { margin: 0 0 1rem; }
ul, ol { padding-left: 1.2rem; }
a { color: var(--ink); text-decoration-thickness: 1px; text-underline-offset: 0.2em; }
a:hover {
  text-decoration-color: var(--marker);
  text-decoration-thickness: 0.45em;
  text-underline-offset: -0.18em;
  text-decoration-skip-ink: none;
}
:focus-visible { outline: 3px solid var(--focus); outline-offset: 3px; }
.wrap { max-width: var(--wrap); margin: 0 auto; padding-left: var(--gutter); padding-right: var(--gutter); }
.small { font-size: 0.92rem; }
.muted { color: var(--muted); }
.visually-hidden {
  position: absolute; width: 1px; height: 1px; padding: 0; margin: -1px;
  overflow: hidden; clip: rect(0 0 0 0); white-space: nowrap; border: 0;
}
.skip { position: absolute; left: -9999px; top: 0; background: var(--marker); color: var(--ink); padding: 0.6rem 1rem; z-index: 40; font: 700 1rem var(--display); }
.skip:focus { left: 1rem; top: 1rem; }

/* The highlighter */
mark, .mark {
  color: inherit;
  background-color: transparent;
  background-image: linear-gradient(100deg, rgba(249, 159, 78, 0.15) 0, var(--marker) 0.3em, var(--marker) calc(100% - 0.3em), rgba(249, 159, 78, 0.35) 100%);
  background-repeat: no-repeat;
  background-size: 100% 78%;
  background-position: 0 72%;
  padding: 0 0.18em;
  margin: 0 -0.06em;
  -webkit-box-decoration-break: clone;
  box-decoration-break: clone;
}

/* ── Header ───────────────────────────────────────────────────────────── */
/* The header stays at the top of the window while the page scrolls. */
.site-header { position: sticky; top: 0; z-index: 30; border-bottom: 3px solid var(--ink); background: var(--paper); }
.header-row {
  display: flex; flex-wrap: wrap; align-items: baseline; justify-content: space-between;
  gap: 0.5rem 2rem; padding-top: 0.95rem; padding-bottom: 0.8rem;
}
.wordmark {
  font: 800 1.55rem/1.1 var(--display); color: var(--ink); text-decoration: none; letter-spacing: -0.01em;
}
.wordmark:hover { text-decoration: none; }
.nav { display: flex; flex-wrap: wrap; align-items: baseline; gap: 0.25rem 1.6rem; font: 600 1rem/1.2 var(--display); }
.nav a { color: var(--ink); text-decoration: none; padding: 0.35rem 0; border-bottom: 2px solid transparent; }
.nav a:hover { border-bottom-color: var(--ink); text-decoration: none; }
.nav a[aria-current="page"] { border-bottom-color: var(--ink); }
.nav a.nav-cta {
  background: var(--marker); border: 0; border-radius: 3px; padding: 0.5rem 0.85rem;
}
.nav a.nav-cta:hover, .nav a.nav-cta[aria-current="page"] { background: var(--marker-deep); }
.tagline { font: 400 1rem/1.45 var(--serif); color: var(--muted); margin-top: 0; margin-bottom: 0; padding-top: 1rem; padding-bottom: 0; }
.tagline-support a { color: var(--ink); }

/* ── Buttons ──────────────────────────────────────────────────────────── */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 0.5rem;
  font: 700 1rem/1.15 var(--display); text-decoration: none; text-align: center;
  padding: 0.85rem 1.3rem; border: 2px solid var(--ink); border-radius: 3px; cursor: pointer;
  transition: background-color 0.15s ease, color 0.15s ease, transform 0.12s ease;
}
.btn:hover { text-decoration: none; transform: translateY(-1px); }
.btn:active { transform: translateY(0); }
.btn-primary { background: var(--ink); color: #fff; }
.btn-primary:hover { background: var(--ink-2); color: #fff; }
.btn-marker { background: var(--marker); color: var(--ink); border-color: var(--marker); }
.btn-marker:hover { background: var(--marker-deep); border-color: var(--marker-deep); color: var(--ink); }
.btn-small { padding: 0.45rem 0.8rem; font-size: 0.9rem; }
.btn-block { display: flex; width: 100%; }
.actions { display: flex; flex-wrap: wrap; gap: 0.75rem; margin-top: 1.6rem; }
.arrow-link { font: 700 1rem var(--display); }
.arrow-link::after { content: " \2192"; }

/* ── Shared page parts ────────────────────────────────────────────────── */
.eyebrow, .kicker, .coverage {
  font: 500 0.8rem/1.4 var(--mono); letter-spacing: 0.06em; text-transform: uppercase; color: var(--muted);
}
.eyebrow { margin-bottom: 1rem; }
.section-title { font: 800 clamp(1.6rem, 3vw, 2.15rem)/1.12 var(--display); letter-spacing: -0.01em; margin-bottom: 0.8rem; }
.section-intro { color: var(--muted); max-width: 40em; }
.page { padding-top: clamp(2rem, 5vw, 3.5rem); padding-bottom: 4.5rem; }
.page-head { margin-bottom: 2.5rem; max-width: 52rem; }
.page-head h1 { font: 800 clamp(2.2rem, 5vw, 3.5rem)/1.04 var(--display); letter-spacing: -0.02em; margin-bottom: 1rem; }
.dek { font-size: 1.22rem; line-height: 1.55; max-width: 38em; }
.prose h2 { font: 700 1.35rem/1.25 var(--display); margin: 2.4rem 0 0.6rem; }
.prose section:first-child h2, .prose > h2:first-child { margin-top: 0; }
.prose p, .prose li { max-width: 40em; }

/* ── Lead: what the site is, then four headline figures ──────────────── */
.lead { padding: clamp(1.25rem, 3vw, 2rem) 0 clamp(0.5rem, 2vw, 1rem); }
.lead .eyebrow { margin-bottom: 0.45rem; }
.lead-title { font: 800 clamp(1.7rem, 3.4vw, 2.45rem)/1.08 var(--display); letter-spacing: -0.015em; max-width: 24em; margin-bottom: 0.6rem; }
.lead-dek { font-size: 1.08rem; line-height: 1.5; color: var(--muted); max-width: 52em; margin: 0 0 1.3rem; }
.kpis { list-style: none; margin: 0; padding: 0; display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 1rem 1.6rem; }
.kpis li { display: flex; }
.kpi {
  flex: 1; display: flex; flex-direction: column; gap: 0.25rem; padding: 0.7rem 0 0.25rem;
  border-top: 3px solid var(--ink); color: var(--text); text-decoration: none;
}
.kpi:hover { text-decoration: none; }
.kpi-value { font: 800 clamp(1.8rem, 3vw, 2.35rem)/1 var(--display); color: var(--ink); letter-spacing: -0.02em; }
.kpi-claude .kpi-value { color: #D66A02; }  /* Claude's colour in the charts; 3.6:1, a large-text pass */
.kpi-label { font: 400 0.98rem/1.4 var(--serif); }
.kpi-delta { font: 500 0.74rem/1.4 var(--mono); letter-spacing: 0.04em; text-transform: uppercase; color: var(--muted); }
.kpi:hover .kpi-label {
  text-decoration: underline; text-decoration-color: var(--marker); text-decoration-thickness: 0.4em;
  text-underline-offset: -0.15em; text-decoration-skip-ink: none;
}
.spark { display: block; width: 100%; max-width: 190px; height: auto; margin-top: 0.4rem; overflow: visible; }
.spark-line { fill: none; stroke: var(--series); stroke-width: 2.25; stroke-linejoin: round; stroke-linecap: round; vector-effect: non-scaling-stroke; }
.spark-end { fill: var(--marker); stroke: var(--ink); stroke-width: 2; vector-effect: non-scaling-stroke; }

.paper-card {
  background: var(--paper); border: 1px solid var(--rule);
  box-shadow: 0 22px 40px -26px rgba(88, 40, 65, 0.45);
}
.paper-cover { display: block; border-bottom: 1px solid var(--rule); }
.paper-cover img { display: block; width: 100%; height: auto; }
.paper-card-body { padding: 1rem 1.1rem 1.2rem; }
.kicker { margin-bottom: 0.3rem; }
.paper-card-title { font: 800 1.4rem/1.1 var(--display); margin-bottom: 0.3rem; }
.paper-card-title a { text-decoration: none; }
.paper-card-meta { font-size: 0.92rem; color: var(--muted); margin-bottom: 1rem; }

/* ── Figures ──────────────────────────────────────────────────────────── */
.findings { padding: 0.25rem 0 3.5rem; border-top: 1px solid var(--rule); }
.exhibit-list > .fig:first-child { margin-top: 1.75rem; }
.fig { margin: 3.25rem 0 0; padding-top: 1.75rem; border-top: 3px solid var(--ink); }
.fig-title { font: 700 clamp(1.2rem, 2.3vw, 1.6rem)/1.25 var(--display); max-width: 44em; margin-bottom: 1.25rem; letter-spacing: -0.005em; }
.chart { position: relative; width: 100%; min-height: 300px; }
.chart:focus-visible { outline-offset: 6px; }
.chart svg { display: block; width: 100%; overflow: visible; }
.chart text { font-family: var(--display); font-size: 13px; fill: var(--text); }
.chart .tick text { font-size: 12.5px; fill: var(--text); }
.chart .axis-line { stroke: var(--ink); stroke-width: 2; shape-rendering: crispEdges; }
.chart .tick-mark { stroke: var(--ink); stroke-width: 1.5; }
.chart .y-label { font-weight: 600; font-size: 12.5px; fill: var(--muted); }
.chart .series-line { fill: none; stroke-width: 2.6; stroke-linejoin: round; stroke-linecap: round; }
.chart .band { opacity: 0.16; }
.chart .end-label { font-weight: 600; font-size: 13px; }
.chart .end-value { font-weight: 800; }
.chart .leader { stroke: var(--muted); stroke-width: 1; }
.chart .crosshair { stroke: var(--ink); stroke-width: 1; stroke-opacity: 0.45; }
.chart .hover-dot { stroke: #fff; stroke-width: 2; }
.chart .bar-label { font-size: 13px; font-weight: 500; }
.chart .bar-value { font-size: 12.5px; font-weight: 700; }
.chart .bar.is-weak { opacity: 0.5; }
.chart .ref-line { stroke: var(--ink); stroke-width: 1.5; stroke-dasharray: 4 4; }
.chart .ref-label { font-size: 12.5px; font-weight: 700; fill: var(--ink); }
.chart .bar:hover, .chart .bar.is-active { filter: brightness(1.35); }
.chart-legend { display: flex; flex-wrap: wrap; gap: 0.35rem 1.1rem; font: 600 0.88rem/1.3 var(--display); margin: 0 0 0.6rem; color: var(--text); }
.chart-legend span { display: inline-flex; align-items: center; gap: 0.4rem; }
.chart-legend i { display: inline-block; width: 16px; height: 3px; border-radius: 2px; }
.tooltip {
  position: absolute; z-index: 3; pointer-events: none; min-width: 10rem;
  background: #fff; border: 1px solid var(--rule); border-top: 3px solid var(--ink);
  box-shadow: 0 10px 24px -12px rgba(88, 40, 65, 0.45);
  padding: 0.5rem 0.65rem; font: 500 0.84rem/1.4 var(--display); color: var(--text);
}
.tooltip[hidden] { display: none; }
.tt-head { font-weight: 800; color: var(--ink); margin-bottom: 0.2rem; }
.tt-row { display: flex; align-items: center; gap: 0.45rem; }
.tt-row i { display: inline-block; width: 12px; height: 3px; border-radius: 2px; flex: none; }
.tt-row b { margin-left: auto; padding-left: 0.75rem; font-weight: 800; font-variant-numeric: tabular-nums; }
.tt-sub { color: var(--muted); font-size: 0.78rem; }
.fig-note { font-size: 0.95rem; line-height: 1.5; color: var(--muted); max-width: 54em; margin-top: 1rem; }
.note-label { font-weight: 700; color: var(--text); }
.fig-table { margin-top: 0.75rem; }
.fig-table summary { font: 700 0.9rem var(--display); color: var(--ink); cursor: pointer; width: max-content; }
.table-scroll { max-height: 22rem; overflow: auto; margin-top: 0.6rem; border: 1px solid var(--rule); }
.fig-table table { border-collapse: collapse; width: 100%; font: 500 0.86rem/1.35 var(--display); font-variant-numeric: tabular-nums; }
.fig-table th, .fig-table td { padding: 0.35rem 0.7rem; text-align: right; border-bottom: 1px solid var(--rule); white-space: nowrap; }
.fig-table th:first-child { text-align: left; }
.fig-table thead th { position: sticky; top: 0; background: var(--tint); font-weight: 700; color: var(--ink); }
.fig-source { font: 500 0.78rem/1.4 var(--mono); color: var(--muted); margin-top: 0.75rem; }
.fig-kicker { margin-bottom: 0.5rem; }
.fig:focus { outline: none; }

/* The region map: shaded regions beside ranked bars in the same colours. The highlighter marks
   the region under the pointer and its bar. */
.map-grid.is-wide { display: grid; grid-template-columns: auto minmax(0, 1fr); gap: 1rem 2.5rem; align-items: center; }
.map-pane { position: relative; margin: 0 auto 1.25rem; }
.map-grid.is-wide .map-pane { margin: 0; }
.map-bars { position: relative; min-width: 0; }
.chart .region { stroke: #fff; stroke-width: 0.9; stroke-linejoin: round; vector-effect: non-scaling-stroke; cursor: pointer; }
.chart .region-active { fill: var(--marker); stroke: var(--ink); stroke-width: 2; vector-effect: non-scaling-stroke; pointer-events: none; }
.chart .region.is-empty { fill: #ECE6E9; cursor: default; }
.chart .map-inset { fill: none; stroke: var(--rule-dot); stroke-width: 1; vector-effect: non-scaling-stroke; }
.chart-map .bar.is-active, .chart-map .bar:hover { fill: var(--marker); stroke: var(--ink); stroke-width: 1.5; filter: none; }

/* Exhibit navigation: a sticky side list on wide screens, a sticky strip on narrow ones, and
   previous/next links under every exhibit. */
.exhibit-nav ol { list-style: none; margin: 0; padding: 0; position: relative; }
.exhibit-nav a { display: flex; gap: 0.6rem; align-items: baseline; text-decoration: none; color: var(--ink); font: 600 0.95rem/1.3 var(--display); }
.exhibit-nav a[aria-current="true"] .exnav-text { background: var(--marker); box-shadow: 0 0 0 0.2em var(--marker); }
.exnav-num { font: 500 0.78rem var(--mono); color: var(--muted); min-width: 1.1rem; }
.exnav-title { font: 500 0.8rem/1.4 var(--mono); letter-spacing: 0.06em; text-transform: uppercase; color: var(--muted); margin: 0 0 0.6rem; }
.exnav-hint { font-size: 0.82rem; color: var(--muted); margin: 1rem 0 0; }
.fig-pager { display: flex; justify-content: space-between; gap: 1rem; margin-top: 1.5rem; padding-top: 1rem; border-top: 1px solid var(--rule); }
.pager-link { display: grid; gap: 0.15rem; text-decoration: none; color: var(--ink); max-width: 48%; }
.pager-next { text-align: right; margin-left: auto; }
.pager-dir { font: 500 0.78rem/1.3 var(--mono); letter-spacing: 0.06em; text-transform: uppercase; color: var(--muted); }
.pager-name { font: 700 1.02rem/1.3 var(--display); }
.pager-link:hover .pager-name { text-decoration: underline; text-decoration-color: var(--marker); text-decoration-thickness: 0.45em; text-underline-offset: -0.18em; text-decoration-skip-ink: none; }
@media (prefers-reduced-motion: no-preference) { html { scroll-behavior: smooth; } }
@media (min-width: 1100px) {
  .exhibits { display: grid; grid-template-columns: 12.5rem minmax(0, 1fr); gap: 0 3rem; align-items: start; }
  .exhibit-nav { position: sticky; top: calc(var(--header-h) + 1.5rem); margin-top: 1.75rem; padding-top: 1.75rem; border-top: 3px solid var(--ink); }
  .exhibit-nav li + li { margin-top: 0.15rem; }
  .exhibit-nav a { padding: 0.4rem 0; }
  .exhibit-nav a:hover .exnav-text { text-decoration: underline; text-decoration-color: var(--marker); text-decoration-thickness: 0.45em; text-underline-offset: -0.18em; text-decoration-skip-ink: none; }
  .fig { scroll-margin-top: 0.75rem; }  /* plus the page's 1rem scroll padding */
}
@media (max-width: 1099.98px) {
  .exhibit-nav {
    position: sticky; top: var(--header-h); z-index: 5; background: var(--paper); margin: 1.5rem calc(-1 * var(--gutter)) 0;
    padding: 0 var(--gutter); border-bottom: 1px solid var(--rule); box-shadow: 0 8px 14px -14px rgba(88, 40, 65, 0.5);
  }
  .exnav-title, .exnav-hint { position: absolute; width: 1px; height: 1px; overflow: hidden; clip: rect(0 0 0 0); white-space: nowrap; }
  .exhibit-nav ol { display: flex; gap: 0.4rem; overflow-x: auto; scrollbar-width: none; padding: 0.6rem 0; }
  .exhibit-nav ol::-webkit-scrollbar { display: none; }
  .exhibit-nav a { white-space: nowrap; gap: 0.4rem; padding: 0.4rem 0.7rem; border: 1px solid var(--rule); border-radius: 999px; font-size: 0.88rem; }
  .exhibit-nav a[aria-current="true"] { background: var(--marker); border-color: var(--ink); }
  .exhibit-nav a[aria-current="true"] .exnav-text { box-shadow: none; }
  html:has(.exhibit-nav) { scroll-padding-top: calc(var(--header-h) + 4.5rem); }  /* header + strip, for jumps and focus */
}
@media (hover: none) { .exnav-hint { display: none; } }

/* ── Bands ────────────────────────────────────────────────────────────── */
.band { padding: clamp(2.75rem, 6vw, 4.25rem) 0; }
.band-grid { display: grid; grid-template-columns: minmax(0, 0.9fr) minmax(0, 1.4fr); gap: 1rem 4rem; align-items: start; }
.band-text { font-size: 1.2rem; line-height: 1.55; max-width: 34em; }
.band-paper { background: var(--tint); }
.band-grid-paper { grid-template-columns: minmax(0, 1.6fr) minmax(0, 290px); align-items: center; }
.band-data { background: var(--ink); color: #fff; }
.band-data .section-title, .band-data label { color: #fff; }
.band-data .band-text { color: #EADDE4; }
.band-data a { color: #fff; }
.band-data .btn-primary { background: var(--marker); color: var(--ink); border-color: var(--marker); }
.band-data .btn-primary:hover { background: var(--marker-deep); border-color: var(--marker-deep); }
.band-data input { border-color: #fff; }

.measure { padding: clamp(2.75rem, 6vw, 4.25rem) 0; }
.measure-grid { display: grid; grid-template-columns: minmax(0, 1fr) minmax(0, 1.05fr); gap: 2rem 4rem; align-items: start; }
.measure-text p { max-width: 34em; }

/* ── The statement (signature) ────────────────────────────────────────── */
.statement {
  margin: 0; background: #FDFDFB; border: 1px solid var(--rule); border-top: 3px solid var(--ink);
  padding: 0.9rem 1rem 0.8rem; box-shadow: 0 18px 36px -28px rgba(88, 40, 65, 0.5);
}
.st-table { width: 100%; border-collapse: collapse; font: 500 0.86rem/1.3 var(--mono); }
.st-table th {
  text-align: left; font-weight: 600; font-size: 0.7rem; letter-spacing: 0.1em; text-transform: uppercase;
  color: var(--muted); padding: 0.2rem 0.35rem 0.45rem; border-bottom: 1px solid var(--ink);
}
.st-table td { padding: 0.5rem 0.35rem; border-bottom: 1px dotted var(--rule-dot); white-space: nowrap; color: var(--text); }
.st-table .num { text-align: right; font-variant-numeric: tabular-nums; }
.st-date { color: var(--muted); }
.st-desc {
  padding: 0.12em 0.3em; margin: 0 -0.3em;
  background-repeat: no-repeat; background-size: 100% 100%;
  -webkit-box-decoration-break: clone; box-decoration-break: clone;
}
.is-direct .st-desc, .key-direct {
  background-image: linear-gradient(100deg, rgba(249, 159, 78, 0.35), var(--marker) 5%, var(--marker) 95%, rgba(249, 159, 78, 0.5));
}
.is-appstore .st-desc, .key-appstore {
  background-image: repeating-linear-gradient(135deg, var(--marker) 0 5px, rgba(249, 159, 78, 0.15) 5px 9px);
}
.statement.will-draw .st-desc { background-size: 0% 100%; transition: background-size 0.75s cubic-bezier(0.3, 0.7, 0.3, 1); }
.statement.will-draw.is-drawn .st-desc { background-size: 100% 100%; }
.statement.will-draw.is-drawn .st-row:nth-child(4) .st-desc { transition-delay: 0.35s; }
.statement.will-draw.is-drawn .st-row:nth-child(6) .st-desc { transition-delay: 0.7s; }
.st-legend { list-style: none; padding: 0; margin: 0.9rem 0 0.4rem; display: grid; gap: 0.35rem; font: 500 0.84rem/1.35 var(--display); }
.st-legend li { display: flex; gap: 0.55rem; align-items: center; }
.key { display: inline-block; flex: none; width: 1.6rem; height: 0.85rem; background-size: 100% 100%; }
.st-caption { font-size: 0.8rem; color: var(--muted); margin: 0.4rem 0 0; }

/* ── Paper page ───────────────────────────────────────────────────────── */
.authors { list-style: none; padding: 0; margin: 0 0 0.5rem; display: flex; flex-wrap: wrap; gap: 0.6rem 2rem; }
.authors li { display: flex; flex-direction: column; }
.author-name { font: 700 1.15rem/1.3 var(--display); color: var(--ink); }
.author-aff { font-size: 0.95rem; color: var(--muted); }
.paper-grid { display: grid; grid-template-columns: minmax(0, 1fr) 280px; gap: 2rem 4rem; align-items: start; }
.abstract { font-size: 1.15rem; line-height: 1.65; }
.findings-list { padding-left: 0; list-style: none; }
.findings-list li { padding: 0.75rem 0 0.75rem 1.4rem; border-bottom: 1px solid var(--rule); position: relative; }
.findings-list li::before { content: ""; position: absolute; left: 0; top: 1.3rem; width: 0.65rem; height: 0.65rem; background: var(--marker); outline: 1.5px solid var(--ink); }
.bibtex { position: relative; margin-top: 1rem; }
.bibtex pre { font: 500 0.82rem/1.5 var(--mono); background: var(--tint); border: 1px solid var(--rule); padding: 1rem; overflow-x: auto; margin: 0 0 0.6rem; }
.paper-side .paper-cover { border: 1px solid var(--rule); margin-bottom: 1.5rem; box-shadow: 0 22px 40px -26px rgba(88, 40, 65, 0.45); }
.facts dt { font: 700 0.85rem var(--display); color: var(--ink); text-transform: uppercase; letter-spacing: 0.05em; }
.facts dd { margin: 0.2rem 0 1rem; font-size: 0.98rem; }
.side-heading { font: 700 1.05rem var(--display); margin: 1.5rem 0 0.4rem; }

/* ── Data page ────────────────────────────────────────────────────────── */
.data-grid { display: grid; grid-template-columns: minmax(0, 1fr) minmax(0, 1fr); gap: 2.5rem 4rem; align-items: start; }
.card { background: #fff; border: 2px solid var(--ink); box-shadow: 8px 8px 0 var(--marker); padding: clamp(1.25rem, 3vw, 2rem); }
.card h2, .contents h2, .faq h2 { font: 800 1.45rem/1.2 var(--display); margin-bottom: 0.6rem; }
.contents h2 + p { color: var(--muted); }
.contents h2:not(:first-child) { margin-top: 2rem; }
label, legend { display: block; font: 700 0.95rem/1.3 var(--display); color: var(--ink); margin-bottom: 0.4rem; }
legend .hint { display: inline; font-weight: 500; }
input:not([type="checkbox"]), select {
  width: 100%; font: 400 1.05rem/1.3 var(--serif); color: var(--text);
  padding: 0.72rem 0.8rem; border: 2px solid var(--field); border-radius: 3px; background: #fff;
}
select { font-family: var(--display); font-size: 1rem; }
input:focus, select:focus { border-color: var(--ink); outline: 3px solid rgba(0, 114, 178, 0.45); outline-offset: 0; }
.gate-form { margin-top: 1rem; }
.gate-row { display: flex; gap: 0.6rem; }
.gate-row input { flex: 1; min-width: 0; }
.gate-row .btn { flex: none; }
.field { margin: 0 0 1.15rem; padding: 0; border: 0; min-width: 0; }
.field-pair { display: grid; grid-template-columns: 1fr 1fr; gap: 0 1rem; }
.hint { font-size: 0.86rem; color: var(--muted); margin: 0.35rem 0 0; }
.chips { display: flex; flex-wrap: wrap; gap: 0.5rem; margin-top: 0.3rem; }
.chip { position: relative; margin: 0; font: inherit; }
.chip input { position: absolute; opacity: 0; width: 1px; height: 1px; }
.chip span {
  display: inline-block; padding: 0.45rem 0.8rem; border: 2px solid var(--field); border-radius: 999px;
  font: 600 0.9rem/1.2 var(--display); color: var(--ink); cursor: pointer; background: #fff;
}
.chip input:checked + span { background: var(--marker); border-color: var(--ink); }
.chip input:focus-visible + span { outline: 3px solid var(--focus); outline-offset: 2px; }
.field-error, .form-error { color: var(--error); font: 700 0.9rem/1.35 var(--display); margin: 0.4rem 0 0; }
.form-error { margin-bottom: 1rem; }
.has-error input, .has-error select, .has-error .chip span { border-color: var(--error); }
.as-email { font: 600 0.98rem var(--display); color: var(--ink); background: var(--tint); padding: 0.55rem 0.75rem; display: flex; flex-wrap: wrap; justify-content: space-between; gap: 0.5rem; }
.as-email a { font-weight: 500; font-size: 0.88rem; }
.consent { color: var(--muted); }
.downloads { display: grid; gap: 0.7rem; margin: 1.3rem 0; }
.past summary { font: 700 0.9rem var(--display); cursor: pointer; }
.hp { position: absolute; left: -10000px; width: 1px; height: 1px; overflow: hidden; }
.band-data .gate-form label { color: #fff; }
.file-list { list-style: none; padding: 0; margin: 0 0 1rem; border-top: 2px solid var(--ink); }
.file-list li { display: grid; grid-template-columns: minmax(0, 16.5rem) minmax(0, 1fr); gap: 0.2rem 1rem; padding: 0.7rem 0; border-bottom: 1px dotted var(--rule-dot); }
.file-name { font: 600 0.8rem/1.45 var(--mono); color: var(--ink); overflow-wrap: anywhere; }
.file-desc { font-size: 0.96rem; line-height: 1.45; }
.rules { padding-left: 1.1rem; }
.rules li { margin-bottom: 0.5rem; font-size: 0.98rem; }
.faq { margin-top: 3rem; max-width: 52rem; }
.faq dt { font: 700 1.05rem/1.35 var(--display); color: var(--ink); margin-top: 1.4rem; }
.faq dd { margin: 0.35rem 0 0; }

/* ── Method, about ────────────────────────────────────────────────────── */
.method-grid { display: grid; grid-template-columns: minmax(0, 1fr) minmax(0, 0.85fr); gap: 2rem 4rem; align-items: start; }
.method-side { position: sticky; top: 1.5rem; }
.pointer { margin-top: 2.5rem; padding-top: 1.25rem; border-top: 1px solid var(--rule); }
.team { list-style: none; padding: 0; display: grid; grid-template-columns: repeat(auto-fit, minmax(15rem, 1fr)); gap: 1rem; margin: 1rem 0 2.5rem; }
.person { border-top: 3px solid var(--ink); padding-top: 1.1rem; display: flex; flex-direction: column; align-items: flex-start; gap: 0.2rem; }
.person-photo { display: block; margin-bottom: 0.7rem; border-radius: 50%; }
.person-photo img { display: block; width: 160px; height: 160px; border-radius: 50%; object-fit: cover; background: var(--tint); }
.person-name { font: 800 1.2rem/1.25 var(--display); color: var(--ink); text-decoration: none; }
.person-name:hover { text-decoration: underline; text-decoration-color: var(--marker); }
.person-aff { color: var(--muted); font-size: 0.98rem; }
.about-page section { margin-bottom: 2.5rem; max-width: 52rem; }
.about-page h2 { font: 800 1.45rem var(--display); margin-bottom: 0.6rem; }
.support-row { display: flex; flex-wrap: wrap; gap: 1rem 2rem; align-items: center; }
.support-row img { display: block; height: 82px; width: auto; }
.support-row p { flex: 1 1 18rem; margin: 0; }

/* ── Footer ───────────────────────────────────────────────────────────── */
.site-footer { border-top: 3px solid var(--ink); background: var(--tint); padding: 2.25rem 0 2.5rem; }
.support { display: flex; flex-wrap: wrap; align-items: center; gap: 1rem 1.75rem; padding-bottom: 1.6rem; margin-bottom: 1.4rem; border-bottom: 1px solid var(--rule); }
.support-logo { flex: none; }
.support-logo img { display: block; height: 57px; width: auto; }
.support-text { font: 600 1.02rem/1.45 var(--display); color: var(--ink); max-width: 38em; margin: 0; }
.footer-nav { display: flex; flex-wrap: wrap; gap: 0.25rem 1.4rem; font: 600 0.95rem var(--display); margin-bottom: 0.8rem; }
.footer-nav a { display: inline-block; padding: 0.45rem 0; }
.footer-cite, .footer-meta { font-size: 0.92rem; color: var(--muted); margin-bottom: 0.4rem; }
.footer-meta .sep { margin: 0 0.4rem; }

/* ── Responsive ───────────────────────────────────────────────────────── */
@media (max-width: 960px) {
  .kpis { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .paper-card { display: grid; grid-template-columns: 150px minmax(0, 1fr); max-width: 560px; }
  .paper-card .paper-cover { border-bottom: 0; border-right: 1px solid var(--rule); }
  .band-grid, .measure-grid, .data-grid, .paper-grid, .method-grid { grid-template-columns: minmax(0, 1fr); }
  .method-side { position: static; }
  .paper-side { max-width: 420px; }
}
@media (max-width: 600px) {
  body { font-size: 1.06rem; }
  :root { --header-h: 5.4rem; }
  .header-row { display: block; position: relative; padding-top: 0.7rem; padding-bottom: 0.45rem; }
  .wordmark { font-size: 1.25rem; }
  .nav { gap: 0.1rem 1.1rem; font-size: 0.95rem; margin-top: 0.35rem; }
  .nav a.nav-cta { position: absolute; top: 0.5rem; right: var(--gutter); padding: 0.4rem 0.65rem; font-size: 0.86rem; }
  .band-text, .dek { font-size: 1.12rem; }
  .kpis { gap: 1rem; }
  .kpi-label { font-size: 0.93rem; }
  .paper-card { grid-template-columns: 110px minmax(0, 1fr); }
  .paper-card-body { padding: 0.8rem; }
  .paper-card-title { font-size: 1.15rem; }
  .field-pair { grid-template-columns: 1fr; }
  .gate-row { flex-direction: column; }
  .file-list li { grid-template-columns: 1fr; }
  .st-table { font-size: 0.74rem; }
  .st-table td { padding: 0.45rem 0.25rem; }
}
@media (max-width: 370px) {  /* too narrow for the button beside the wordmark: it joins the links */
  :root { --header-h: 7.2rem; }
  .nav a.nav-cta { position: static; }
}
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { transition: none !important; animation: none !important; }
}
@media print {
  .site-header nav, .band-data, .fig-table, .actions, .exhibit-nav, .fig-pager { display: none; }
  .site-header { position: static; }
  .exhibits { display: block; }
  .fig { break-inside: avoid; }
}