/* OSIC — design tokens. Light palette lives on bare :root; dark overrides
   apply first from prefers-color-scheme (system default), then again from
   [data-theme] so an explicit toggle always wins over the system setting. */
:root {
  --bg: #ffffff;
  --bg-subtle: #f6f7f9;
  --bg-inset: #eef0f3;
  --border: #e3e6eb;
  --border-strong: #cdd2da;
  --text: #14181f;
  --text-muted: #5b6371;
  --text-faint: #8891a0;
  --accent: #1558d6;
  --accent-hover: #0e42ac;
  --accent-subtle: #eaf0fd;
  --warn-bg: #fff3cd;
  --warn-text: #7a5c00;
  --warn-border: #f0dfa0;
  --badge-bg: #eef0f3;
  --badge-text: #4b5563;
  --flag-bg: #fbe4de;
  --flag-text: #96341c;
  --flag-border: #eec3b8;
  --sovereign-bg: #dff1e8;
  --sovereign-text: #17694a;
  --sovereign-border: #b9e0cd;
  --shadow: 0 1px 2px rgba(20, 24, 31, 0.06), 0 1px 12px rgba(20, 24, 31, 0.04);
  --chart-text: var(--text);
  --chart-muted: var(--text-muted);
  --chart-bar: var(--accent);
  --chart-grid: var(--border);
  color-scheme: light;
}

@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) {
    --bg: #0e1116;
    --bg-subtle: #161a21;
    --bg-inset: #1c212a;
    --border: #2a2f3a;
    --border-strong: #3b4150;
    --text: #e7e9ee;
    --text-muted: #9aa2b3;
    --text-faint: #6b7280;
    --accent: #5b93f5;
    --accent-hover: #82aef8;
    --accent-subtle: rgba(91, 147, 245, 0.14);
    --warn-bg: #3a2f12;
    --warn-text: #f0c674;
    --warn-border: #5a4a1e;
    --badge-bg: #232833;
    --badge-text: #b7bec9;
    --flag-bg: #3a201a;
    --flag-text: #ec9482;
    --flag-border: #5c3229;
    --sovereign-bg: #16302a;
    --sovereign-text: #7ed3ac;
    --sovereign-border: #285143;
    --shadow: 0 1px 2px rgba(0, 0, 0, 0.3), 0 1px 16px rgba(0, 0, 0, 0.24);
    color-scheme: dark;
  }
}

:root[data-theme="dark"] {
  --bg: #0e1116;
  --bg-subtle: #161a21;
  --bg-inset: #1c212a;
  --border: #2a2f3a;
  --border-strong: #3b4150;
  --text: #e7e9ee;
  --text-muted: #9aa2b3;
  --text-faint: #6b7280;
  --accent: #5b93f5;
  --accent-hover: #82aef8;
  --accent-subtle: rgba(91, 147, 245, 0.14);
  --warn-bg: #3a2f12;
  --warn-text: #f0c674;
  --warn-border: #5a4a1e;
  --badge-bg: #232833;
  --badge-text: #b7bec9;
  --flag-bg: #3a201a;
  --flag-text: #ec9482;
  --flag-border: #5c3229;
  --sovereign-bg: #16302a;
  --sovereign-text: #7ed3ac;
  --sovereign-border: #285143;
  --shadow: 0 1px 2px rgba(0, 0, 0, 0.3), 0 1px 16px rgba(0, 0, 0, 0.24);
  color-scheme: dark;
}

* { box-sizing: border-box; }

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

body {
  font-family: -apple-system, "Segoe UI", Helvetica, Arial, sans-serif;
  margin: 0;
  background: var(--bg);
  color: var(--text);
  line-height: 1.6;
  font-size: 16px;
  transition: background-color 0.15s ease, color 0.15s ease;
}

.skip-link {
  position: absolute;
  left: -999px;
  top: 0;
  background: var(--accent);
  color: #fff;
  padding: 0.6rem 1rem;
  z-index: 100;
  border-radius: 0 0 6px 0;
}
.skip-link:focus { left: 0; }

a { color: var(--accent); }
a:hover { color: var(--accent-hover); }

.wrap {
  max-width: 860px;
  margin: 0 auto;
  padding: 0 1.5rem;
}

/* ---------- Topbar ---------- */

.topbar {
  position: sticky;
  top: 0;
  z-index: 20;
  background: color-mix(in srgb, var(--bg) 92%, transparent);
  backdrop-filter: saturate(180%) blur(8px);
  -webkit-backdrop-filter: saturate(180%) blur(8px);
  border-bottom: 1px solid var(--border);
}
.topbar-inner {
  max-width: 860px;
  margin: 0 auto;
  padding: 0 1.5rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 60px;
}

.brand {
  display: flex;
  align-items: baseline;
  gap: 0.6rem;
  text-decoration: none;
  color: var(--text);
  min-width: 0;
}
.brand-mark {
  font-weight: 800;
  font-size: 1.15rem;
  letter-spacing: -0.01em;
  color: var(--text);
}
.brand-tagline {
  color: var(--text-faint);
  font-size: 0.82rem;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.topnav {
  display: flex;
  align-items: center;
  gap: 1.6rem;
}
.topnav a {
  color: var(--text-muted);
  text-decoration: none;
  font-size: 0.92rem;
  font-weight: 600;
  padding: 0.4rem 0.1rem;
  border-bottom: 2px solid transparent;
}
.topnav a:hover { color: var(--text); }
.topnav a.active { color: var(--text); border-bottom-color: var(--accent); }

.theme-toggle {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 34px;
  height: 34px;
  border-radius: 8px;
  border: 1px solid var(--border);
  background: var(--bg-subtle);
  color: var(--text-muted);
  cursor: pointer;
  margin-left: 0.4rem;
}
.theme-toggle:hover { color: var(--text); border-color: var(--border-strong); }
.theme-toggle svg { width: 17px; height: 17px; }
.theme-toggle .icon-sun { display: none; }
.theme-toggle .icon-moon { display: block; }
@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) .theme-toggle .icon-sun { display: block; }
  :root:not([data-theme="light"]) .theme-toggle .icon-moon { display: none; }
}
:root[data-theme="dark"] .theme-toggle .icon-sun { display: block; }
:root[data-theme="dark"] .theme-toggle .icon-moon { display: none; }

.nav-toggle-input { display: none; }
.nav-toggle-btn { display: none; }

@media (max-width: 680px) {
  .brand-tagline { display: none; }
  .nav-toggle-btn {
    display: flex;
    flex-direction: column;
    justify-content: center;
    gap: 4px;
    width: 34px;
    height: 34px;
    border-radius: 8px;
    border: 1px solid var(--border);
    background: var(--bg-subtle);
    cursor: pointer;
    order: 3;
  }
  .nav-toggle-btn span {
    display: block;
    height: 2px;
    margin: 0 7px;
    background: var(--text-muted);
    border-radius: 1px;
  }
  .topnav {
    position: absolute;
    top: 60px;
    left: 0;
    right: 0;
    background: var(--bg);
    border-bottom: 1px solid var(--border);
    flex-direction: column;
    align-items: stretch;
    gap: 0;
    padding: 0.5rem 1.5rem 1rem;
    display: none;
    box-shadow: var(--shadow);
  }
  .nav-toggle-input:checked ~ .topnav { display: flex; }
  .topnav a { padding: 0.7rem 0; border-bottom: 1px solid var(--border); }
  .topnav a.active { border-bottom: 1px solid var(--border); }
  .theme-toggle { margin: 0.6rem 0 0; align-self: flex-start; }
}

/* ---------- Preview banner ---------- */

.preview-banner {
  background: var(--warn-bg);
  color: var(--warn-text);
  border-bottom: 1px solid var(--warn-border);
  text-align: center;
  padding: 0.55rem 1rem;
  font-size: 0.83rem;
}
.preview-banner a { color: inherit; text-decoration: underline; }

/* ---------- Content ---------- */

main { padding: 2.25rem 0 3rem; }
main > .wrap > p:first-child { margin-top: 0; }

.back-link {
  display: inline-block;
  margin-bottom: 1.25rem;
  font-size: 0.88rem;
  font-weight: 600;
  text-decoration: none;
  color: var(--text-muted);
}
.back-link:hover { color: var(--accent); }

h1 { font-size: 1.75rem; margin: 0 0 0.3rem; letter-spacing: -0.01em; }
h2 {
  font-size: 0.86rem;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  font-weight: 700;
  color: var(--text-muted);
  border-top: 1px solid var(--border);
  padding-top: 1.75rem;
  margin-top: 2.5rem;
  margin-bottom: 1rem;
}
h1 + h2, .lede + h2 { margin-top: 2rem; }

.muted { color: var(--text-muted); }
.lede { color: var(--text-muted); font-size: 1.02rem; margin-top: 0.6rem; }

/* ---------- Tables ---------- */

.table-wrap { overflow-x: auto; margin: 0 -0.1rem; }
table { width: 100%; border-collapse: collapse; font-size: 0.9rem; }
th, td { padding: 0.55rem 0.6rem; border-bottom: 1px solid var(--border); text-align: left; white-space: nowrap; }
td:first-child, th:first-child { padding-left: 0.1rem; }
th { color: var(--text-muted); font-weight: 600; font-size: 0.78rem; text-transform: uppercase; letter-spacing: 0.03em; }
tbody tr:hover { background: var(--bg-subtle); }
td { white-space: normal; }

code {
  background: var(--bg-inset);
  color: var(--text);
  padding: 0.12rem 0.4rem;
  border-radius: 4px;
  font-size: 0.88em;
  font-family: ui-monospace, SFMono-Regular, Consolas, "Liberation Mono", Menlo, monospace;
}

.badge {
  display: inline-block;
  background: var(--warn-bg);
  color: var(--warn-text);
  border: 1px solid var(--warn-border);
  padding: 0.08rem 0.55rem;
  border-radius: 99px;
  font-size: 0.74rem;
  font-weight: 600;
  margin-left: 0.4rem;
  vertical-align: middle;
}
.badge-neutral {
  background: var(--badge-bg);
  color: var(--badge-text);
  border-color: var(--border);
}

/* ---------- Sovereignty chips ---------- */

.chip {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 2.1rem;
  padding: 0.1rem 0.4rem;
  border-radius: 5px;
  font-size: 0.68rem;
  font-weight: 700;
  letter-spacing: 0.01em;
  border: 1.5px solid transparent;
  font-variant-numeric: tabular-nums;
}
.chip-us { background: var(--flag-bg); color: var(--flag-text); }
.chip-nonus { background: var(--sovereign-bg); color: var(--sovereign-text); }
.chip-unknown { background: var(--badge-bg); color: var(--badge-text); border-style: dashed; border-color: var(--border-strong); }
.chip-nodata { background: transparent; color: var(--text-faint); border-style: dashed; border-color: var(--border); }

.sovereignty-score { font-weight: 700; font-variant-numeric: tabular-nums; }
.sovereignty-score .of5 { color: var(--text-faint); font-weight: 400; font-size: 0.82em; }

.sovereignty-bar {
  display: flex;
  height: 7px;
  border-radius: 4px;
  overflow: hidden;
  background: var(--bg-inset);
  margin: 0.3rem 0 0.4rem;
}
.sovereignty-bar span { display: block; height: 100%; }
.sovereignty-bar .b-us { background: var(--flag-text); }
.sovereignty-bar .b-nonus { background: var(--sovereign-text); }
.sovereignty-bar .b-unknown { background: var(--border-strong); }
.sovereignty-bar .b-nodata { background: var(--border); }

.sovereignty-legend {
  display: flex;
  flex-wrap: wrap;
  gap: 0.9rem;
  font-size: 0.78rem;
  color: var(--text-muted);
  margin: 0.6rem 0 1rem;
}
.sovereignty-legend .item { display: flex; align-items: center; gap: 0.35rem; }
.sovereignty-legend .sw { width: 0.7rem; height: 0.7rem; border-radius: 3px; flex: none; }
.sovereignty-legend .sw.us { background: var(--flag-bg); border: 1.5px solid var(--flag-text); }
.sovereignty-legend .sw.nonus { background: var(--sovereign-bg); border: 1.5px solid var(--sovereign-text); }
.sovereignty-legend .sw.unknown { background: var(--badge-bg); border: 1.5px dashed var(--border-strong); }
.sovereignty-legend .sw.nodata { background: transparent; border: 1.5px dashed var(--border); }

/* ---------- Index / insights list ---------- */

.search-wrap {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  margin: 1.5rem 0 0.25rem;
}
.search-wrap input[type="search"] {
  flex: 1;
  font: inherit;
  font-size: 0.95rem;
  padding: 0.55rem 0.8rem;
  border: 1px solid var(--border-strong);
  border-radius: 8px;
  background: var(--bg-subtle);
  color: var(--text);
}
.search-wrap input[type="search"]:focus {
  outline: 2px solid var(--accent);
  outline-offset: -1px;
  background: var(--bg);
}
.search-wrap input[type="search"]::placeholder { color: var(--text-faint); }
.search-count { font-size: 0.82rem; color: var(--text-faint); white-space: nowrap; }

.company-list { list-style: none; padding: 0; margin: 0.75rem 0 0; }
.company-list li {
  display: flex;
  align-items: baseline;
  flex-wrap: wrap;
  gap: 0 0.6rem;
  padding: 0.7rem 0.1rem;
  border-bottom: 1px solid var(--border);
}
.company-list a { font-weight: 600; text-decoration: none; color: var(--text); }
.company-list a:hover { color: var(--accent); }
.company-list .muted { font-size: 0.85rem; font-family: ui-monospace, SFMono-Regular, Consolas, monospace; }
.company-list .desc { flex-basis: 100%; font-size: 0.85rem; color: var(--text-muted); margin-top: 0.1rem; }
.company-list li[hidden] { display: none; }

/* ---------- Charts ---------- */

svg rect { transition: opacity 0.1s; }
svg rect:hover { opacity: 0.72; cursor: default; }

.chart-block { margin: 1rem 0 0.5rem; }

/* ---------- Sub-tabs (Analysis pages) ---------- */

.subtabs {
  display: flex;
  gap: 0.4rem;
  margin: 1.1rem 0 0;
  border-bottom: 1px solid var(--border);
}
.subtabs a {
  text-decoration: none;
  color: var(--text-muted);
  font-size: 0.88rem;
  font-weight: 600;
  padding: 0.55rem 0.9rem;
  border-bottom: 2px solid transparent;
  margin-bottom: -1px;
}
.subtabs a:hover { color: var(--text); }
.subtabs a.active { color: var(--accent); border-bottom-color: var(--accent); }

/* ---------- Articles / insights ---------- */

article .byline { color: var(--text-faint); font-size: 0.85rem; margin-bottom: 1.75rem; }
article p { margin: 1rem 0; }
article h2 { border-top: none; padding-top: 0; margin-top: 2.25rem; }

.stat-callout {
  border-left: 3px solid var(--accent);
  background: var(--accent-subtle);
  padding: 0.7rem 1.1rem;
  margin: 1.5rem 0;
  border-radius: 0 6px 6px 0;
  font-size: 1.1rem;
  color: var(--text);
}
.stat-callout strong { color: var(--accent); }

/* Same shape as .stat-callout, flag tokens instead of accent — for a
   caveat worth visually separating from the surrounding prose, not a
   headline number. */
.flag-callout {
  border-left: 3px solid var(--flag-text);
  background: var(--flag-bg);
  padding: 0.7rem 1.1rem;
  margin: 1.5rem 0;
  border-radius: 0 6px 6px 0;
  font-size: 0.95rem;
  color: var(--text);
}
.flag-callout strong { color: var(--flag-text); }

/* ---------- Footer ---------- */

.site-footer {
  border-top: 1px solid var(--border);
  background: var(--bg-subtle);
  margin-top: 3rem;
}
.footer-inner {
  max-width: 860px;
  margin: 0 auto;
  padding: 2.5rem 1.5rem 1.5rem;
  display: grid;
  grid-template-columns: 1.4fr 1fr 1fr;
  gap: 2rem;
}
.footer-col strong {
  display: block;
  font-size: 0.78rem;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--text-faint);
  margin-bottom: 0.7rem;
}
.footer-col p { color: var(--text-muted); font-size: 0.85rem; margin: 0.4rem 0 0; }
.footer-col a {
  display: block;
  color: var(--text-muted);
  text-decoration: none;
  font-size: 0.87rem;
  padding: 0.2rem 0;
}
.footer-col a:hover { color: var(--accent); }
.footer-col .brand-mark { font-size: 1rem; }

.footer-bottom {
  max-width: 860px;
  margin: 0 auto;
  padding: 1.1rem 1.5rem;
  border-top: 1px solid var(--border);
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  gap: 0.4rem 1.5rem;
  font-size: 0.78rem;
  color: var(--text-faint);
}

@media (max-width: 640px) {
  .footer-inner { grid-template-columns: 1fr; gap: 1.5rem; }
}

/* ---------- Privacy page ---------- */

.policy-section { margin: 1.75rem 0; }
.policy-section h2 { border-top: none; padding-top: 0; margin-top: 0; }
.policy-meta { color: var(--text-faint); font-size: 0.85rem; }
dl.rights-list dt { font-weight: 700; margin-top: 0.9rem; }
dl.rights-list dd { margin: 0.2rem 0 0; color: var(--text-muted); }

/* ---------- FTSE 100 vs 250 comparison ---------- */

.compare-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1.25rem;
  margin: 1.25rem 0 2rem;
}
@media (max-width: 640px) { .compare-grid { grid-template-columns: 1fr; } }

.compare-card {
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 1.25rem 1.4rem;
  background: var(--bg-subtle);
}
.compare-card.is-highlight { border-color: var(--accent); background: var(--accent-subtle); }
.compare-card h3 { margin: 0 0 0.9rem; font-size: 1.05rem; }
.compare-card .metric {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  padding: 0.45rem 0;
  border-bottom: 1px solid var(--border);
  font-size: 0.92rem;
}
.compare-card .metric:last-child { border-bottom: none; }
.compare-card .metric .value { font-weight: 700; color: var(--text); }
.compare-card .sector-list { list-style: none; padding: 0; margin: 0.4rem 0 0; font-size: 0.85rem; color: var(--text-muted); }
.compare-card .sector-list li { padding: 0.15rem 0; }

.cta-box {
  border: 1px solid var(--accent);
  background: var(--accent-subtle);
  border-radius: 10px;
  padding: 1.75rem;
  text-align: center;
  margin: 2.5rem 0 1rem;
}
.cta-box h2 { border-top: none; padding-top: 0; margin-top: 0; }
.cta-box p { color: var(--text-muted); max-width: 46ch; margin: 0.5rem auto 1.25rem; }
.cta-button {
  display: inline-block;
  background: var(--accent);
  color: #fff;
  font-weight: 700;
  text-decoration: none;
  padding: 0.7rem 1.6rem;
  border-radius: 8px;
  font-size: 0.95rem;
}
.cta-button:hover { background: var(--accent-hover); color: #fff; }

/* ---------- Index + crawl-state badges ---------- */
/* The default .badge is warn-coloured, which was right when the only badge
   said "not yet crawled". Two badges now appear on every row, so they have
   to be told apart at a glance: the index label is a neutral fact about the
   company, the refusal is a statement about our own collection. */
.badge-index {
  background: var(--badge-bg);
  color: var(--badge-text);
  border-color: var(--border);
  font-weight: 500;
}
.badge-refused {
  background: var(--flag-bg);
  color: var(--flag-text);
  border-color: var(--flag-border);
  cursor: help;
}

/* ---------- Index filter chips ---------- */
.filter-row {
  display: flex;
  flex-wrap: wrap;
  gap: 0.4rem;
  margin: 0.75rem 0 0.25rem;
}
.filter-chip {
  font: inherit;
  font-size: 0.82rem;
  font-weight: 600;
  padding: 0.3rem 0.75rem;
  border: 1px solid var(--border-strong);
  border-radius: 99px;
  background: var(--bg-subtle);
  color: var(--text-muted);
  cursor: pointer;
}
.filter-chip:hover { color: var(--text); border-color: var(--accent); }
.filter-chip:focus-visible { outline: 2px solid var(--accent); outline-offset: 2px; }
.filter-chip.is-on {
  background: var(--accent);
  border-color: var(--accent);
  color: #fff;
}

/* ---------- Coverage page ---------- */
/* Numeric columns line up only if the digits do — the coverage table is read
   by comparing counts down a column, which proportional figures defeat. */
th.num, td.num { text-align: right; font-variant-numeric: tabular-nums; white-space: nowrap; }
.total-row td { border-top: 2px solid var(--border-strong); background: var(--bg-subtle); }
.total-row td:hover { background: var(--bg-subtle); }

ul.clean {
  list-style: disc;
  padding-left: 1.2rem;
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
  margin: 0.8rem 0;
}
ul.clean li { padding-left: 0.15rem; }

/* ---------- /crawling ---------- */
/* The User-Agent is the one string on the site a reader may need to copy
   verbatim into a robots.txt or a WAF rule, so it must not be re-wrapped
   into something that no longer matches what is in their log. */
.ua-block {
  background: var(--bg-inset);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 0.75rem 0.9rem;
  overflow-x: auto;
  font-size: 0.86rem;
}
.ua-block code { background: none; padding: 0; white-space: pre; }