/* Shared editorial theme for the comparison sites.
   build.py appends each site's identity after this file: accent colors, fonts, background, masthead layout. */
:root {
  --bg: #fafaf8;
  --surface: #ffffff;
  --surface-2: #f2f2ee;
  --ink: #1b1a17;
  --muted: #625f58;
  --line: #e3e1da;
  --rule: #1b1a17;
  --warn-bg: #fdf6e7;
  --warn-line: #b7791f;
  --good: #1d7a3c;
  --bad: #b42318;
  --text-w: 44rem;
  --wide-w: 64rem;
  --font-body: ui-sans-serif, system-ui, -apple-system, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  --font-head: "Iowan Old Style", "Palatino Linotype", Palatino, "Book Antiqua", Georgia, serif;
  /* chart series: validated categorical palette (dataviz skill), light */
  --s1: #2a78d6; --s2: #eb6834; --s3: #1baf7a; --s4: #eda100;
  --chart-surface: #fcfcfb; --chart-grid: #e1e0d9; --chart-axis: #898781;
}

@media (prefers-color-scheme: dark) {
  :root {
    --bg: #141311;
    --surface: #1b1a18;
    --surface-2: #22211e;
    --ink: #eeede9;
    --muted: #aeaaa0;
    --line: #2e2d29;
    --rule: #d8d6cf;
    --warn-bg: #2a2214;
    --warn-line: #e0a43a;
    --good: #5ccf85;
    --bad: #f28b82;
    --s1: #3987e5; --s2: #d95926; --s3: #199e70; --s4: #c98500;
    --chart-surface: #1a1a19; --chart-grid: #2c2c2a; --chart-axis: #898781;
  }
}

*, *::before, *::after { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; scroll-behavior: smooth; }
body { margin: 0; background: var(--bg); color: var(--ink); font: 17px/1.68 var(--font-body); }
a { color: var(--accent-strong); text-underline-offset: 2px; text-decoration-thickness: 1px; }
a:hover { color: var(--accent); }
:focus-visible { outline: 3px solid var(--accent); outline-offset: 2px; border-radius: 3px; }
img, svg { max-width: 100%; height: auto; }
[id] { scroll-margin-top: 24px; }

.container { width: min(var(--wide-w), 100% - 32px); margin-inline: auto; }

/* Masthead: centered (mast-center) or logo left with the menu on the right (mast-left) */
.site-header { border-bottom: 1px solid var(--line); background: var(--bg); }
.site-header .container { padding: 1.1rem 0 .8rem; }
.logo { display: inline-flex; align-items: center; gap: .55rem; color: var(--ink); text-decoration: none;
  font-family: var(--font-head); font-weight: 700; font-size: 1.45rem; letter-spacing: -.01em; line-height: 1.15; }
.logo .mark { width: 28px; height: 28px; flex: none; }
.logo .mark-bg { fill: var(--accent); }
.logo .light { font-weight: 400; color: var(--muted); }
.logo:hover { color: var(--ink); }
.tagline { margin: .2rem 0 0; color: var(--muted); font-size: .88rem; }
.site-nav { display: flex; flex-wrap: wrap; gap: .3rem 1.4rem; margin-top: .7rem; }
.site-nav a { color: var(--ink); text-decoration: none; font-size: .93rem; padding-bottom: 3px; border-bottom: 2px solid transparent; }
.site-nav a:hover { color: var(--accent-strong); }
.site-nav a[aria-current="page"] { border-bottom-color: var(--accent); }
.mast-center .site-header .container { text-align: center; }
.mast-center .site-nav { justify-content: center; }
.mast-left .site-header .container { display: grid; grid-template-columns: 1fr auto; align-items: end; gap: .2rem 2rem; }
.mast-left .tagline { grid-column: 1; }
.mast-left .site-nav { grid-column: 2; grid-row: 1 / span 2; margin-top: 0; align-self: center; }

/* Page column: text stays readable, .wide blocks use the full width */
main { padding: 2.4rem 0 4rem; }
.page > * { max-width: var(--text-w); margin-inline: auto; }
.page > .wide { max-width: var(--wide-w); }

h1, h2, h3, h4, .lede, summary { font-family: var(--font-head); }
h1 { font-size: clamp(2rem, 1.3rem + 2.6vw, 2.85rem); line-height: 1.1; letter-spacing: -.018em; margin-top: .3rem; margin-bottom: .8rem; }
h2 { font-size: 1.75rem; line-height: 1.2; letter-spacing: -.01em; margin-top: 3.2rem; margin-bottom: .8rem; }
h3 { font-size: 1.32rem; line-height: 1.3; margin-top: 2.2rem; margin-bottom: .5rem; }
h4 { font-size: 1.05rem; }
p, ul, ol { margin-top: 0; margin-bottom: 1rem; }
li { margin: .3rem 0; }
strong { font-weight: 700; }

/* Opening: kicker, headline, standfirst, trust line */
.hero { padding: .4rem 0 .2rem; }
.eyebrow { display: inline-block; font-size: .76rem; font-weight: 700; letter-spacing: .09em; text-transform: uppercase; color: var(--accent-strong); }
.lede { font-size: 1.24rem; line-height: 1.5; }
.meta-row { display: flex; flex-wrap: wrap; gap: .2rem 1.2rem; color: var(--muted); font-size: .86rem;
  border-top: 1px solid var(--line); border-bottom: 1px solid var(--line); padding: .55rem 0; margin: 1.3rem auto 1.8rem; }
.check { color: var(--good); font-weight: 800; }

/* "In short" summary */
.inshort { border-left: 3px solid var(--accent); padding: .15rem 0 .15rem 1.1rem; margin: 1.6rem auto; }
.inshort .h { font-size: .74rem; font-weight: 700; letter-spacing: .09em; text-transform: uppercase; color: var(--muted); margin: 0 0 .3rem; }
.inshort ul { margin: 0; padding-left: 1.1rem; }
.inshort li { margin: .35rem 0; }

/* Key numbers */
.kpis { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 0; border-top: 2px solid var(--rule); border-bottom: 1px solid var(--line); margin: 1.8rem auto; }
.kpi { padding: .9rem 1rem .9rem 0; }
.kpi + .kpi { padding-left: 1rem; border-left: 1px solid var(--line); }
.kpi b { display: block; font-family: var(--font-head); font-size: 1.65rem; line-height: 1.15; font-variant-numeric: tabular-nums; letter-spacing: -.01em; }
.kpi span { display: block; color: var(--muted); font-size: .84rem; line-height: 1.4; margin-top: .3rem; }

/* Cards: flat panels under a strong rule (kept for summary grids and link lists) */
.cards { display: grid; grid-template-columns: repeat(auto-fit, minmax(13rem, 1fr)); gap: 1.4rem; margin-top: 1rem; margin-bottom: 1.6rem; }
.cards.cols-3 { grid-template-columns: repeat(auto-fit, minmax(18rem, 1fr)); }
.card { border-top: 2px solid var(--rule); padding: .7rem 0 0; display: flex; flex-direction: column; gap: .45rem; }
.card h3 { margin: 0; font-size: 1.25rem; }
.card p { margin: 0; font-size: .95rem; }
.card dl { margin: .1rem 0 0; font-size: .92rem; }
.card dt { color: var(--muted); font-size: .72rem; font-weight: 650; letter-spacing: .06em; text-transform: uppercase; margin-top: .5rem; }
.card dt:first-child { margin-top: 0; }
.card dd { margin: .05rem 0 0; font-weight: 600; }
.card .card-foot { margin-top: auto; padding-top: .4rem; font-size: .9rem; }
.badge { align-self: flex-start; font-size: .72rem; font-weight: 700; letter-spacing: .07em; text-transform: uppercase; color: var(--accent-strong); }

/* Tables */
.table-wrap { overflow-x: auto; }
table { border-collapse: collapse; width: 100%; min-width: 46rem; font-size: .92rem; font-variant-numeric: tabular-nums; }
.table-wrap.compact table { min-width: 32rem; }
th, td { text-align: left; vertical-align: top; padding: .7rem .8rem .7rem 0; border-bottom: 1px solid var(--line); }
thead th { color: var(--muted); font-size: .74rem; font-weight: 700; letter-spacing: .06em; text-transform: uppercase; border-bottom: 2px solid var(--rule); }
tbody th { position: sticky; left: 0; background: var(--bg); font-weight: 700; padding-right: 1rem; }
.note { color: var(--muted); font-size: .86rem; margin-top: .7rem; }
.table-wrap + :not(.note) { margin-top: 1.1rem; }

/* Callouts */
.callout { background: var(--accent-soft); border-left: 3px solid var(--accent); padding: .9rem 1.1rem; margin-top: 1.2rem; margin-bottom: 1.2rem; }
.callout.warn { background: var(--warn-bg); border-left-color: var(--warn-line); }
.callout > strong:first-child { display: block; margin-bottom: .25rem; font-family: var(--font-head); font-size: 1.05rem; }
.callout p:last-child { margin-bottom: 0; }

/* Provider sections: an article per vendor */
.provider { border-top: 1px solid var(--line); margin-top: 2.6rem; padding-top: .3rem; }
.provider h3 { font-size: 1.55rem; margin-top: 1.2rem; }
.stats { display: flex; flex-wrap: wrap; gap: .1rem 0; list-style: none; padding: 0; margin: .3rem 0 1rem; color: var(--muted); font-size: .9rem; }
.stats li { margin: 0; }
.stats li + li::before { content: "\00b7"; margin: 0 .55rem; color: var(--line); font-weight: 700; }
.stats b { color: var(--ink); }
.fit { display: grid; grid-template-columns: repeat(auto-fit, minmax(14rem, 1fr)); gap: 1.2rem; margin: 1.1rem 0 1.2rem; }
.fit > div { border-top: 1px solid var(--line); padding-top: .5rem; }
.fit h4 { margin: 0 0 .2rem; font-family: var(--font-body); font-size: .72rem; letter-spacing: .08em; text-transform: uppercase; }
.fit .good h4 { color: var(--good); }
.fit .bad h4 { color: var(--bad); }
.fit p { margin: 0; font-size: .95rem; }

/* Figures, diagrams and charts */
figure { margin: 1.6rem auto; }
.diagram, figure.chart { background: var(--chart-surface); border: 1px solid var(--line); padding: 1rem 1.1rem .8rem; }
.diagram svg, .chart-svg { display: block; width: 100%; height: auto; }
.diagram .d-src { fill: var(--accent-soft); stroke: var(--accent); stroke-width: 2; }
.diagram .d-bank { fill: var(--surface-2); stroke: var(--line); stroke-width: 1.5; }
.diagram .d-line { fill: none; stroke: var(--accent); stroke-width: 1.6; }
.diagram .d-t { fill: var(--ink); font: 500 14px var(--font-body); }
.diagram .d-b { font-size: 19px; font-weight: 750; }
.diagram .d-m { fill: var(--muted); font-size: 13px; }
.chart .cap { font-family: var(--font-head); font-size: 1.08rem; margin: 0 0 .1rem; }
.chart .sub { color: var(--muted); font-size: .84rem; margin: 0 0 .5rem; }
.chart .grid line { stroke: var(--chart-grid); stroke-width: 1; }
.chart .zero { stroke: var(--chart-axis); stroke-width: 1.5; stroke-dasharray: 4 4; }
.chart .axis text, .chart .zero-label { fill: var(--chart-axis); font: 12px var(--font-body); }
.chart .s { fill: none; stroke-width: 2; stroke-linejoin: round; stroke-linecap: round; }
.chart .s1, .chart .p1 { stroke: var(--s1); }
.chart .s2, .chart .p2 { stroke: var(--s2); }
.chart .s3, .chart .p3 { stroke: var(--s3); }
.chart .s4, .chart .p4 { stroke: var(--s4); }
.chart .pts circle { fill: var(--chart-surface); stroke-width: 2; }
.chart .lbl text { fill: var(--ink); font: 12px var(--font-body); }
.legend { list-style: none; display: flex; flex-wrap: wrap; gap: .2rem 1.1rem; padding: 0; margin: .6rem 0 0; font-size: .84rem; color: var(--muted); }
.legend li { margin: 0; }
.legend i { display: inline-block; width: 16px; height: 3px; border-radius: 2px; margin-right: .45rem; vertical-align: middle; }
.legend .k1 { background: var(--s1); } .legend .k2 { background: var(--s2); } .legend .k3 { background: var(--s3); } .legend .k4 { background: var(--s4); }
figcaption { color: var(--muted); font-size: .86rem; margin-top: .6rem; }

/* FAQ */
details { border-bottom: 1px solid var(--line); padding: .75rem 0; }
details:first-of-type { border-top: 1px solid var(--line); }
summary { cursor: pointer; font-weight: 600; font-size: 1.08rem; }
details[open] summary { margin-bottom: .5rem; }
details p:last-child { margin-bottom: 0; }

/* Related guides */
.link-cards { list-style: none; padding: 0; border-top: 2px solid var(--rule); }
.link-cards li { margin: 0; border-bottom: 1px solid var(--line); }
.link-cards a { display: block; padding: .75rem 0; color: var(--ink); text-decoration: none; }
.link-cards a strong { font-family: var(--font-head); font-size: 1.1rem; }
.link-cards a:hover strong { color: var(--accent-strong); }
.link-cards span { display: block; color: var(--muted); font-size: .9rem; margin-top: .1rem; }

/* Sources, footnotes, fine print */
sup a { text-decoration: none; font-weight: 700; font-size: .78em; padding: 0 .1em; }
.sources { color: var(--muted); font-size: .88rem; padding-left: 1.4rem; }
.sources li { margin: .3rem 0; }
.fineprint { color: var(--muted); font-size: .88rem; border-top: 1px solid var(--line); padding-top: .7rem; }

/* Footer */
.site-footer { border-top: 2px solid var(--rule); color: var(--muted); font-size: .88rem; padding: 1.6rem 0 2.4rem; }
.site-footer .container { display: grid; gap: .5rem; }
.footer-links { display: flex; flex-wrap: wrap; gap: .4rem 1.3rem; }
.site-footer a { color: var(--muted); }
.site-footer p { margin: 0; }

@media (max-width: 700px) {
  body { font-size: 16px; }
  .mast-left .site-header .container { display: block; }
  .mast-left .site-nav { margin-top: .6rem; }
  .kpis { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .kpi:nth-child(3) { padding-left: 0; border-left: 0; }
  .kpi:nth-child(n+3) { border-top: 1px solid var(--line); }
  h2 { font-size: 1.45rem; margin-top: 2.6rem; }
  figure.chart, .diagram { padding: .8rem .6rem .6rem; }
}

/* site identity */
:root{--accent:#c2410c;--accent-strong:#9a3412;--accent-soft:#fff1e7;--font-head:"Iowan Old Style", "Palatino Linotype", Palatino, "Book Antiqua", Georgia, serif;--bg:#fbfaf7}
@media (prefers-color-scheme: dark){:root{--accent:#fb923c;--accent-strong:#fdba74;--accent-soft:#3a1d0b;--bg:#141311}}