/* Shared fact-page chrome. Brand greens/gold from official SVGs in assets/brand/. */
:root {
  --paper: #f7f5ef;
  --panel: #ffffff;
  --ink: #212121;
  --muted: #5a655e;
  --rule: #d5ddd6;
  --accent: #269B4D;
  --accent-deep: #16532A;
  --accent-mid: #208241;
  --accent-soft: #e5f3ea;
  --gold: #F6BB60;
  --flag: #C07A4E;
  --track: #e8ebe6;
  --series: #269B4D;
  --f-display: "Ubuntu", "Segoe UI", system-ui, sans-serif;
  --f-body: "Ubuntu", "Segoe UI", system-ui, sans-serif;
  --f-mono: "Ubuntu Mono", ui-monospace, "SFMono-Regular", Menlo, Consolas, monospace;
  color-scheme: light;
}
@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) {
    --paper: #0e1511; --panel: #15201a; --ink: #e8eee9; --muted: #9caaa3; --rule: #2a3630;
    --accent: #4db86a; --accent-deep: #b7e5bf; --accent-mid: #76c788; --accent-soft: #1a2c20;
    --gold: #F6BB60; --flag: #e3a35c; --track: #222b26; --series: #76c788;
    color-scheme: dark;
  }
}
:root[data-theme="dark"] {
  --paper: #0e1511; --panel: #15201a; --ink: #e8eee9; --muted: #9caaa3; --rule: #2a3630;
  --accent: #4db86a; --accent-deep: #b7e5bf; --accent-mid: #76c788; --accent-soft: #1a2c20;
  --gold: #F6BB60; --flag: #e3a35c; --track: #222b26; --series: #76c788;
  color-scheme: dark;
}

* { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; }
body {
  margin: 0;
  background: var(--paper);
  color: var(--ink);
  font-family: var(--f-body);
  font-size: 16px;
  line-height: 1.6;
  padding-inline: 20px;
  padding-block: 0 64px;
}
img { max-width: 100%; }
[hidden] { display: none !important; }
a { color: var(--accent); text-underline-offset: 3px; }
a:focus-visible, button:focus-visible, select:focus-visible, summary:focus-visible, [tabindex]:focus-visible {
  outline: 2px solid var(--accent); outline-offset: 2px; border-radius: 3px;
}
.skip { position: absolute; left: -999px; top: 0; background: var(--panel); color: var(--ink); padding: 8px 12px; z-index: 99; }
.skip:focus { left: 12px; top: 12px; }

.site-head, .pf-head {
  max-width: 880px; margin-inline: auto;
  display: flex; flex-wrap: wrap; align-items: center; justify-content: space-between; gap: 10px 24px;
  padding-block: 18px; border-bottom: 1px solid var(--rule);
}
.brand, .pf-brand {
  display: inline-flex; align-items: center; gap: 10px; text-decoration: none; color: var(--ink);
  font-family: var(--f-display); font-weight: 700; font-size: 1.15rem; letter-spacing: -0.01em;
}
.brand img, .pf-brand img { width: 40px; height: 40px; object-fit: contain; }
.brand-wordmark { height: 28px; width: auto; max-width: min(220px, 48vw); }
.site-nav, .pf-nav { display: flex; flex-wrap: wrap; gap: 4px 16px; font-size: 0.92rem; align-items: center; }
.site-nav a, .pf-nav a { color: var(--muted); text-decoration: none; padding-block: 4px; border-bottom: 2px solid transparent; }
.site-nav a:hover, .pf-nav a:hover { color: var(--ink); }
.site-nav a[aria-current="page"], .pf-nav a[aria-current="page"] {
  color: var(--ink); border-bottom-color: var(--accent); font-weight: 600;
}
.head-controls { display: flex; gap: 8px; margin-left: auto; }
.iconbtn {
  font: 600 0.8rem var(--f-body); color: var(--ink); background: var(--panel);
  border: 1px solid var(--rule); border-radius: 6px; padding: 6px 10px; cursor: pointer;
}
.iconbtn:hover { border-color: var(--accent); }

.wrap { max-width: 880px; margin-inline: auto; display: grid; gap: 56px; padding-top: 44px; }
.wrap > * { min-width: 0; }
.eyebrow { font-family: var(--f-mono); font-size: 14px; letter-spacing: 0.08em; text-transform: uppercase; color: var(--muted); margin: 0; }
h1, h2, h3 { font-family: var(--f-display); text-wrap: balance; margin: 0; }
h1 { font-size: clamp(2.2rem, 6vw, 3.4rem); line-height: 1.05; font-weight: 700; letter-spacing: -0.02em; }
h2 { font-size: 1.55rem; line-height: 1.2; font-weight: 500; }
h3 { font-size: 1.1rem; line-height: 1.3; font-weight: 500; }
p { margin: 0; }
.lede { font-size: 1.15rem; max-width: 62ch; }
.page-head { display: grid; gap: 18px; }
.page-head .hero-logo { width: 96px; height: 96px; object-fit: contain; }
.page-head .hero-wordmark { width: min(360px, 100%); height: auto; }
section { display: grid; gap: 20px; }
section > * { min-width: 0; }
.note { color: var(--muted); font-size: 0.92rem; max-width: 68ch; }
.prose { display: grid; gap: 16px; max-width: 68ch; }
.prose ul, .prose ol { margin: 0; padding-left: 22px; display: grid; gap: 8px; }
.num { font-variant-numeric: tabular-nums; font-weight: 700; }
.src { font-size: 0.82rem; color: var(--muted); }
code { font-family: var(--f-mono); font-size: 0.98rem; word-break: break-all; }
.lang-block[hidden] { display: none !important; }

.table-scroll { overflow-x: auto; -webkit-overflow-scrolling: touch; border: 1px solid var(--rule); border-radius: 8px; background: var(--panel); }
table { border-collapse: collapse; width: 100%; font-size: 0.95rem; }
th, td { text-align: left; vertical-align: top; padding: 12px 16px; border-bottom: 1px solid var(--rule); }
tbody tr:last-child th, tbody tr:last-child td { border-bottom: 0; }
thead th { font-family: var(--f-mono); font-size: 0.83rem; letter-spacing: 0.06em; text-transform: uppercase; color: var(--muted); font-weight: 600; border-bottom: 2px solid var(--ink); white-space: nowrap; }
thead th.coin { font-family: var(--f-display); font-size: 1.2rem; font-weight: 700; letter-spacing: 0; text-transform: none; color: var(--ink); }
thead th.coin small { display: block; font-family: var(--f-body); font-size: 0.8rem; font-weight: 400; color: var(--muted); }
tbody th { font-family: var(--f-mono); font-weight: 600; font-size: 0.83rem; letter-spacing: 0.06em; text-transform: uppercase; color: var(--muted); }
tbody th.plain { font-family: var(--f-body); font-size: 0.95rem; letter-spacing: 0; text-transform: none; color: var(--ink); white-space: nowrap; }
td.r, th.r { text-align: right; font-variant-numeric: tabular-nums; }
col.hl { background: var(--accent-soft); }
tr.hl td, tr.hl th { background: var(--accent-soft); }

/* Three-coin compare: sticky row labels + PEP highlight while horizontally scrolling */
.table-scroll table.compare-3 {
  border-collapse: separate;
  border-spacing: 0;
}
.table-scroll table.compare-3 th[scope="col"]:first-child,
.table-scroll table.compare-3 th[scope="row"] {
  position: sticky;
  left: 0;
  z-index: 2;
  background: var(--panel);
  box-shadow: 1px 0 0 var(--rule);
}
.table-scroll table.compare-3 thead th[scope="col"]:first-child { z-index: 3; }
.table-scroll table.compare-3 tbody td:nth-child(2),
.table-scroll table.compare-3 thead th:nth-child(2) { background: var(--accent-soft); }
.same { display: inline-block; font-family: var(--f-mono); font-size: 0.8rem; letter-spacing: 0.04em; text-transform: uppercase; color: var(--accent); border: 1px solid var(--accent); border-radius: 3px; padding: 0 6px; margin-left: 8px; white-space: nowrap; }

dl.facts { margin: 0; display: grid; grid-template-columns: 170px minmax(0, 1fr); border-top: 1px solid var(--rule); }
dl.facts dt, dl.facts dd { padding: 14px 0; border-bottom: 1px solid var(--rule); margin: 0; }
dl.facts dt { font-family: var(--f-mono); font-size: 0.83rem; letter-spacing: 0.06em; text-transform: uppercase; color: var(--muted); padding-top: 18px; padding-right: 16px; }
dl.facts dd { min-width: 0; }

.stats { display: grid; grid-template-columns: repeat(auto-fit, minmax(190px, 1fr)); gap: 0; border-top: 2px solid var(--ink); border-bottom: 1px solid var(--rule); }
.stat { padding: 16px 16px 16px 0; display: grid; gap: 4px; align-content: start; min-width: 0; }
.stat .label { font-family: var(--f-mono); font-size: 0.83rem; letter-spacing: 0.06em; text-transform: uppercase; color: var(--muted); }
.stat .value { font-size: 1.7rem; font-weight: 700; line-height: 1.15; overflow-wrap: anywhere; }
.stat .sub { font-size: 0.86rem; color: var(--muted); }

.cards { display: grid; grid-template-columns: repeat(auto-fit, minmax(240px, 1fr)); gap: 16px; }
.cards.two { grid-template-columns: repeat(auto-fit, minmax(min(100%, 340px), 1fr)); }
.cards.two > :last-child:nth-child(odd) { grid-column: 1 / -1; }
.card { background: var(--panel); border: 1px solid var(--rule); border-radius: 8px; padding: 20px; display: grid; gap: 8px; align-content: start; text-decoration: none; color: var(--ink); min-width: 0; box-shadow: 0 1px 0 rgba(33,33,33,0.04); }
a.card:hover { border-color: var(--accent); }
.card h3 { color: var(--accent); }
.card p { font-size: 0.95rem; color: var(--muted); }
.linkgroups { display: grid; grid-template-columns: repeat(auto-fit, minmax(240px, 1fr)); gap: 28px 32px; }
.linkgroup { display: grid; gap: 10px; align-content: start; min-width: 0; }
.linkgroup h3 { font-family: var(--f-mono); font-size: 0.86rem; letter-spacing: 0.06em; text-transform: uppercase; color: var(--muted); font-weight: 600; }
.linkgroup ul { list-style: none; margin: 0; padding: 0; display: grid; gap: 0; border-top: 1px solid var(--rule); }
.linkgroup li { display: flex; justify-content: space-between; gap: 12px; align-items: baseline; padding: 9px 0; border-bottom: 1px solid var(--rule); font-size: 0.95rem; }
.linkgroup li span { color: var(--muted); font-size: 0.82rem; text-align: right; }

.sources { display: grid; grid-template-columns: repeat(auto-fit, minmax(240px, 1fr)); gap: 24px; }
.sources h3 { font-family: var(--f-mono); font-size: 0.86rem; letter-spacing: 0.06em; text-transform: uppercase; color: var(--muted); margin: 0 0 8px; font-weight: 600; }
.sources ul { margin: 0; padding-left: 18px; display: grid; gap: 6px; font-size: 0.92rem; }

.faq { display: grid; gap: 0; border-top: 1px solid var(--rule); }
.faq details { border-bottom: 1px solid var(--rule); padding: 14px 0; }
.faq summary { cursor: pointer; font-weight: 600; }
.faq details p { margin-top: 10px; max-width: 68ch; }

.callout {
  background: var(--accent-soft); border: 1px solid var(--rule); border-left: 4px solid var(--accent);
  border-radius: 8px; padding: 16px 18px; display: grid; gap: 8px; max-width: 68ch;
}
.callout.gold { border-left-color: var(--gold); }

.alloc { display: grid; gap: 8px; }
.alloc-num { font-family: var(--f-mono); font-weight: 600; font-size: 1.32rem; font-variant-numeric: tabular-nums; }
.alloc-num.flag { color: var(--flag); }
.alloc-num.zero { color: var(--accent); }
.bar { height: 8px; background: var(--track); border-radius: 4px; overflow: hidden; max-width: 160px; }
.bar span { display: block; height: 100%; background: var(--flag); }
.bar-scale { font-family: var(--f-mono); font-size: 0.8rem; color: var(--muted); }
.addr-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(240px, 1fr)); gap: 16px; }
.addr-card { background: var(--panel); border: 1px solid var(--rule); border-radius: 8px; padding: 18px; display: grid; gap: 10px; align-content: start; min-width: 0; }
.prefix { font-family: var(--f-mono); font-size: 2.3rem; font-weight: 600; line-height: 1; }
.prefix.pep { color: var(--accent); }
.addr-row { display: grid; gap: 4px; min-width: 0; }
.addr-row .who { font-weight: 700; font-size: 0.9rem; }
.addr-line { display: flex; gap: 8px; align-items: flex-start; min-width: 0; }
.addr-line code { min-width: 0; }
.copy { flex: none; font: 600 0.75rem var(--f-body); color: var(--accent); background: transparent; border: 1px solid var(--rule); border-radius: 4px; padding: 3px 8px; cursor: pointer; }
.copy:hover { border-color: var(--accent); }

footer.site-foot, footer.pf-foot {
  max-width: 880px; margin: 56px auto 0; border-top: 2px solid var(--ink); padding-top: 18px;
  display: grid; gap: 8px; font-size: 0.9rem; color: var(--muted);
}
footer.site-foot strong, footer.pf-foot strong { color: var(--ink); }

@media (max-width: 560px) {
  table.fit th, table.fit td { padding: 10px 10px; }
  table.fit tbody th { width: 92px; }
  table.fit .same { margin-left: 0; display: table; margin-top: 4px; }
  dl.facts { grid-template-columns: 1fr; }
  dl.facts dt { padding-bottom: 0; border-bottom: 0; }
  dl.facts dd { padding-top: 4px; }
  .brand-wordmark { display: none; }
}
@media (prefers-reduced-motion: reduce) { * { transition: none !important; scroll-behavior: auto !important; } }

/* Home intro pitches (What is / Triple mineable) */
.pitches { display: grid; grid-template-columns: repeat(auto-fit, minmax(min(100%, 280px), 1fr)); gap: 16px; }
.pitch {
  background: var(--panel);
  border: 1px solid var(--rule);
  border-radius: 12px;
  padding: 28px 24px 24px;
  display: grid;
  gap: 12px;
  justify-items: center;
  text-align: center;
  align-content: start;
  box-shadow: 0 1px 0 rgba(33,33,33,0.04);
}
.pitch .pitch-icon { width: 72px; height: 72px; object-fit: contain; }
.pitch .pitch-icons { width: 112px; height: 104px; object-fit: contain; }
.pitch h2 { margin: 0; font-size: 1.25rem; color: var(--ink); font-weight: 700; }
.pitch p { margin: 0; font-size: 0.98rem; color: var(--muted); max-width: 36ch; line-height: 1.55; }

.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;
}

/* Brand cluster glyphs are white — never invert/filter in dark theme */
.pitch .pitch-icon,
.pitch .pitch-icons {
  filter: none !important;
  mix-blend-mode: normal;
  forced-color-adjust: none;
}

/* Guides: numbered steps, wallet cards, glossary terms */
.guide-steps { list-style: none; margin: 0; padding: 0; display: grid; gap: 12px; counter-reset: gstep; }
.guide-steps li { counter-increment: gstep; display: grid; grid-template-columns: auto minmax(0, 1fr); gap: 4px 16px; padding: 16px 18px; background: var(--panel); border: 1px solid var(--rule); border-radius: 12px; }
.guide-steps li::before { content: counter(gstep); grid-row: span 2; display: grid; place-items: center; width: 36px; height: 36px; border-radius: 50%; background: var(--accent-soft); color: var(--accent-mid); font-weight: 700; }
.guide-steps h3 { font-weight: 700; }
.guide-steps p { color: var(--muted); font-size: 0.97rem; max-width: 66ch; }
.wallet-cards { display: grid; grid-template-columns: repeat(auto-fill, minmax(min(100%, 250px), 1fr)); gap: 14px; }
.wallet { display: grid; gap: 8px; align-content: start; padding: 18px; background: var(--panel); border: 1px solid var(--rule); border-radius: 12px; min-width: 0; }
.wallet.hl { border-color: var(--accent); background: var(--accent-soft); }
.wallet h3 { font-weight: 700; font-size: 1.12rem; }
.wallet .kind { font-family: var(--f-mono); font-size: 0.85rem; letter-spacing: 0.05em; text-transform: uppercase; color: var(--muted); }
.wallet p { font-size: 0.95rem; color: var(--muted); }
.wallet .links { display: flex; flex-wrap: wrap; gap: 4px 14px; font-size: 0.92rem; }
dl.terms { margin: 0; display: grid; border-top: 1px solid var(--rule); }
dl.terms dt { padding-top: 16px; font-weight: 700; font-size: 1.08rem; scroll-margin-top: 16px; }
dl.terms dd { margin: 4px 0 0; padding-bottom: 16px; border-bottom: 1px solid var(--rule); max-width: 70ch; }
dl.terms dd a { white-space: nowrap; }
.az { display: flex; flex-wrap: wrap; gap: 6px; }
.az a { padding: 4px 11px; border: 1px solid var(--rule); border-radius: 999px; background: var(--panel); font-size: 0.9rem; text-decoration: none; }
.az a:hover { border-color: var(--accent); }
@media (max-width: 560px) {
  .guide-steps li { padding: 14px; column-gap: 12px; }
}

/* Language menu, translation hint, per-language type */
.langmenu { position: relative; }
.langmenu > summary { list-style: none; display: inline-flex; align-items: center; gap: 6px; user-select: none; }
.langmenu > summary::-webkit-details-marker { display: none; }
.langmenu ul {
  position: absolute; right: 0; top: calc(100% + 6px); z-index: 50; margin: 0; padding: 6px; list-style: none;
  min-width: 160px; background: var(--panel); border: 1px solid var(--rule); border-radius: 10px;
  box-shadow: 0 10px 28px rgba(0, 0, 0, 0.14);
}
.site-nav .langmenu a, .pf-nav .langmenu a {
  display: block; padding: 7px 10px; border: 0; border-radius: 6px; color: var(--ink); white-space: nowrap; font-weight: 400;
}
.site-nav .langmenu a:hover, .pf-nav .langmenu a:hover { background: var(--accent-soft); }
.site-nav .langmenu a[aria-current="true"], .pf-nav .langmenu a[aria-current="true"] { color: var(--accent); font-weight: 700; }
.lang-hint {
  max-width: 880px; margin: 14px auto 0; display: flex; flex-wrap: wrap; align-items: center; gap: 6px 14px;
  padding: 10px 8px 10px 14px; background: var(--accent-soft); border: 1px solid var(--rule); border-left: 3px solid var(--accent);
  border-radius: 8px; font-size: 0.95rem;
}
.lang-hint a { font-weight: 600; }
.lang-hint-x { margin-left: auto; background: none; border: 0; padding: 2px 8px; font-size: 1.35rem; line-height: 1; color: var(--muted); cursor: pointer; }
.lang-hint-x:hover { color: var(--ink); }
html:lang(zh) {
  --f-display: "Ubuntu", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Noto Sans CJK SC", "Noto Sans SC", "Source Han Sans SC", sans-serif;
  --f-body: "Ubuntu", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Noto Sans CJK SC", "Noto Sans SC", "Source Han Sans SC", sans-serif;
  --f-mono: "Ubuntu Mono", ui-monospace, Menlo, Consolas, "PingFang SC", "Microsoft YaHei", "Noto Sans CJK SC", monospace;
}
.tag-en {
  display: inline-block; margin-left: 6px; padding: 0 5px; border: 1px solid var(--rule); border-radius: 4px;
  font: 600 0.68rem/1.5 var(--f-mono); letter-spacing: 0.06em; color: var(--muted); vertical-align: 0.2em;
}
.card.feature { background: var(--accent-soft); border-color: var(--accent); border-left-width: 4px; padding: 22px 24px; }
.card.feature h3 { font-size: 1.3rem; }
.card.feature p { color: var(--ink); }
.pledge {
  display: flex; gap: 10px; align-items: baseline; max-width: 62ch; margin: 0; padding: 12px 16px;
  background: var(--accent-soft); border-left: 3px solid var(--accent); border-radius: 0 8px 8px 0;
}
.pledge::before { content: "✓"; flex: none; color: var(--accent); font-weight: 700; }