/* LimeChain brand tokens (limechain.tech) */
:root {
  --bg: #08090C; --card: #171E28; --card-2: #11161C; --dark-2: #25303E;
  --border: #2D3B4E; --border-subtle: #3A4B64; --border-active: #576C89;
  --text: #F6FBFF; --text-2: #B8C7D8; --text-3: #98A9BE; --muted: #677B96;
  --green: #28EB9B; --purple: #936BFF; --purple-dark: #5F23FF; --pink: #FF547D;
  /* data colours: brand-derived steps validated on --card (lightness, chroma, CVD, contrast) */
  --d-exposed: #E04A6E; --d-paper: #8A63F2; --d-build: #3B97DC; --d-live: #16AE7A; --d-unknown: #576C89;
}
* { box-sizing: border-box; }
html { background: var(--bg); }
body { margin: 0; font: 300 16px/1.5 "Titillium Web", system-ui, sans-serif; color: var(--text); background: var(--bg);
  background-image: radial-gradient(900px 420px at 85% -10%, rgba(95, 35, 255, .22), transparent 70%),
                    radial-gradient(700px 360px at -10% 10%, rgba(40, 235, 155, .08), transparent 70%);
  background-repeat: no-repeat; }
a { color: var(--purple); text-decoration: none; }
a:hover { text-decoration: underline; }
code { font: 13px/1.4 ui-monospace, SFMono-Regular, Menlo, monospace; color: var(--text-2); background: var(--dark-2); padding: 1px 5px; }
code.hash { word-break: break-all; }
h1, h2, h3 { font-weight: 700; margin: 0 0 .5em; line-height: 1.15; }
h1 { font-size: clamp(34px, 5vw, 60px); }
h2 { font-size: 28px; margin-top: 8px; }
h3 { font-size: 18px; font-weight: 600; }
b { font-weight: 600; }
.muted { color: var(--muted); }
.small { font-size: 13px; }
.right { text-align: right; }
.num { font-variant-numeric: tabular-nums; font-weight: 600; }
.warn { color: var(--pink); }

/* LimeChain site header (mirrors limechain.tech) */
.lc-in { max-width: 1344px; margin: 0 auto; padding: 0 clamp(16px, 3.4vw, 48px); }
.lc-nav { position: sticky; top: 0; z-index: 20; background: #08090C; border-bottom: 1px solid var(--border); }
.lc-nav .lc-in { display: flex; align-items: center; gap: 24px; height: 72px; }
.lc-logo { display: flex; flex: none; }
.lc-menu { display: flex; gap: 4px; margin: 0 auto; align-items: center; }
.lc-menu > a, .lc-dd > a, .lc-dd > span { display: block; color: var(--text-2); font-size: 16px; font-weight: 400; padding: 24px 14px; cursor: pointer; }
.lc-menu a:hover, .lc-dd > span:hover { color: var(--text); text-decoration: none; }
.lc-dd { position: relative; }
.lc-dd > a::after, .lc-dd > span::after { content: ""; display: inline-block; width: 5px; height: 5px; margin: 0 0 4px 8px;
  border: solid currentColor; border-width: 0 1px 1px 0; transform: rotate(45deg); }
.lc-ddm { display: none; position: absolute; top: 100%; left: 0; min-width: 240px; background: var(--card-2); border: 1px solid var(--border); padding: 8px 0; }
.lc-dd:hover .lc-ddm, .lc-dd:focus-within .lc-ddm { display: block; }
.lc-ddm a { display: block; color: var(--text-2); padding: 9px 18px; font-size: 15px; }
.lc-ddm a:hover { background: var(--dark-2); color: var(--text); }
.lc-btn { display: inline-block; flex: none; background: var(--green); color: #08090C; font-weight: 600; font-size: 16px; padding: 9px 58px; text-align: center; }
.lc-btn:hover { background: #5cf3b5; text-decoration: none; }
.lc-btn.ghost { background: var(--dark-2); color: var(--text); }
.lc-btn.ghost:hover { background: var(--border); }
.lc-toggle, .lc-burger, .lc-menu .lc-menu-cta { display: none; }

/* index sub-navigation */
.ix-bar { border-bottom: 1px solid var(--border); background: rgba(17, 22, 28, .85); }
.ix-bar .lc-in { display: flex; justify-content: space-between; align-items: center; height: 52px; gap: 12px; }
.ix-brand { display: flex; align-items: center; gap: 10px; color: var(--text); font-weight: 600; font-size: 16px; }
.ix-brand:hover { text-decoration: none; }
.logo { background: var(--green); color: #000; font-weight: 700; font-size: 12px; padding: 1px 6px; letter-spacing: .04em; }
.ix-bar nav { display: flex; }
.ix-bar nav a { color: var(--text-2); padding: 14px 14px; border-bottom: 2px solid transparent; }
.ix-bar nav a.on { color: var(--purple); border-bottom-color: var(--purple); }
.ix-bar nav a:hover { text-decoration: none; color: var(--text); }

main { max-width: 1180px; margin: 0 auto; padding: 0 clamp(16px, 4vw, 48px) 40px; }
section { margin: 40px 0; }
.qrs-note { color: var(--muted); font-size: 13px; text-align: center; max-width: 780px; margin: 24px auto 0; }

/* lead CTA band (same look as the limechain.tech contact block) */
.cta-band { border: 1px solid var(--border); padding: clamp(32px, 6vw, 64px) 24px; text-align: center; margin-top: 64px;
  background: radial-gradient(600px 240px at 50% 0, rgba(95, 35, 255, .18), transparent 70%); }
.cta-band h2 { font-size: clamp(28px, 4vw, 44px); text-transform: uppercase; }
.cta-band p { color: var(--text-2); max-width: 640px; margin: 0 auto 28px; font-size: 17px; }
.hero-ctas { display: flex; gap: 12px; flex-wrap: wrap; margin-top: 28px; }

/* LimeChain site footer */
.lc-foot { border-top: 1px solid var(--border); margin-top: 72px; padding-top: 56px; font-size: 15px; }
.lc-foot-top { display: flex; justify-content: space-between; gap: 48px; flex-wrap: wrap; padding-bottom: 48px; }
.lc-foot p { color: var(--text); margin: 0 0 14px; }
.lc-social { display: flex; gap: 8px; }
.lc-social a { display: grid; place-items: center; width: 40px; height: 40px; background: var(--dark-2); }
.lc-social a:hover { background: var(--border-subtle); }
.lc-cols { display: flex; gap: 64px; flex-wrap: wrap; }
.lc-cols a { display: block; color: var(--text-2); padding: 6px 0; }
.lc-cols a:hover { color: var(--text); text-decoration: none; }
.lc-cols .lc-col-h, .lc-main a { color: var(--text); font-weight: 600; font-size: 16px; }
.lc-main a { padding: 8px 0; }
.lc-foot-bottom { display: flex; justify-content: space-between; align-items: center; gap: 24px; flex-wrap: wrap;
  border-top: 1px solid var(--border); padding-top: 28px; padding-bottom: 40px; }
.lc-legal { display: flex; gap: 16px; flex-wrap: wrap; align-items: center; font-size: 14px; color: var(--text-2); }
.lc-legal a { color: var(--text-2); }

/* hero */
.hero { padding: 56px 0 8px; max-width: 860px; }
.eyebrow { text-transform: uppercase; letter-spacing: .14em; font-size: 12px; font-weight: 600; color: var(--green); margin: 0 0 12px; }
.hl { background: linear-gradient(90deg, var(--purple), #b59bff 45%, var(--green)); -webkit-background-clip: text; background-clip: text; color: transparent; }
.lead { font-size: 19px; color: var(--text-2); max-width: 760px; }

/* tiles */
.tiles, .kpis { display: grid; grid-template-columns: repeat(auto-fit, minmax(180px, 1fr)); gap: 12px; }
.kpis { margin: 18px 0; align-items: stretch; }
.tile { background: var(--card); border: 1px solid var(--border); padding: 18px 20px; display: flex; flex-direction: column; gap: 2px; }
.tile b { font-size: 34px; font-weight: 700; line-height: 1.1; font-variant-numeric: tabular-nums; }
.tile b small { font-size: 16px; color: var(--text-3); font-weight: 400; }
.tile span { color: var(--text-3); font-size: 14px; }

/* board table */
.bar-head { display: flex; justify-content: space-between; align-items: end; gap: 12px; flex-wrap: wrap; }
.filters { display: flex; gap: 0; border: 1px solid var(--border); }
.filters button { font: inherit; font-size: 14px; background: transparent; color: var(--text-3); border: 0; padding: 6px 18px; cursor: pointer; }
.filters button.on { background: var(--dark-2); color: var(--text); box-shadow: inset 0 -2px 0 var(--purple); }
.tablewrap { overflow-x: auto; border: 1px solid var(--border); background: var(--card); margin: 12px 0; }
table { width: 100%; border-collapse: collapse; }
th { text-align: left; font-size: 12px; text-transform: uppercase; letter-spacing: .08em; font-weight: 600; color: var(--text-3);
  padding: 12px 14px; border-bottom: 1px solid var(--border); background: var(--card-2); white-space: nowrap; }
td { padding: 12px 14px; border-bottom: 1px solid var(--border); vertical-align: middle; }
tr:last-child td { border-bottom: 0; }
.board tbody tr { cursor: pointer; transition: background .12s; }
.board tbody tr:hover { background: #1d2633; }
.board .rcell { width: 60px; padding-right: 0; }
.cname { color: var(--text); font-weight: 600; font-size: 17px; }
.scol { white-space: nowrap; min-width: 170px; }
.sbar { display: inline-block; vertical-align: middle; width: 110px; height: 8px; background: var(--dark-2); margin-right: 10px; }
.sbar span { display: block; height: 100%; background: var(--green); border-radius: 0 4px 4px 0; }
.cells { white-space: nowrap; }
.cell { display: inline-grid; place-items: center; width: 24px; height: 24px; margin-right: 2px; font: 600 11px/1 "Titillium Web", sans-serif; font-style: normal; color: #fff; }
.flag { display: inline-block; font-size: 11px; font-weight: 600; text-transform: uppercase; letter-spacing: .06em; padding: 0 6px; margin-left: 6px;
  border: 1px solid var(--border-subtle); color: var(--text-3); vertical-align: 2px; }
h1 .flag { font-size: 13px; vertical-align: 8px; }

/* bands */
.b-exposed { --c: var(--d-exposed); } .b-paper { --c: var(--d-paper); } .b-build { --c: var(--d-build); }
.b-live { --c: var(--d-live); } .b-unknown { --c: var(--d-unknown); } .b-na { --c: transparent; }
.cell, .sw, .seg { background: var(--c); }
.cell.b-unknown, .sw.b-unknown, .chip.b-unknown { background: repeating-linear-gradient(135deg, var(--d-unknown) 0 3px, #3a4b64 3px 6px); }
.cell.b-na, .sw.b-na { background: transparent; outline: 1px dashed var(--border-active); outline-offset: -1px; color: var(--muted); }
.sw { display: inline-block; width: 12px; height: 12px; margin-right: 7px; vertical-align: -1px; }
.chip { display: inline-block; font-size: 13px; font-weight: 600; padding: 1px 9px; color: #fff; background: var(--c); white-space: nowrap; }
.chip.b-na { color: var(--text-3); border: 1px dashed var(--border-active); }
.chip.mini { font-size: 11px; padding: 0 6px; text-transform: uppercase; letter-spacing: .04em; margin-right: 4px; }
.mech, .hold { margin-top: 6px; color: var(--text-2); }
.caveat { margin-top: 4px; color: var(--text-3); max-width: 34ch; }
.legend { display: flex; flex-wrap: wrap; gap: 6px 20px; font-size: 13px; color: var(--text-3); margin: 8px 0; }

/* stage badge */
.stage { display: inline-flex; align-items: baseline; gap: 8px; font-weight: 700; font-size: 14px; padding: 3px 10px; white-space: nowrap;
  color: var(--text); border: 1px solid var(--c); background: color-mix(in srgb, var(--c) 22%, transparent); }
.stage em { font-style: normal; font-weight: 400; color: var(--text-2); }
.stage.big { font-size: 24px; padding: 14px 18px; height: 100%; align-items: center; }
.stage.big em { font-size: 18px; }
.ladder { display: flex; gap: 3px; margin-top: 6px; }
.ladder i { width: 11px; height: 5px; background: var(--dark-2); }
.ladder i.on { background: var(--c); }
.ladder i.gap { margin-left: 7px; }
.kpis > div:first-child { display: flex; flex-direction: column; }
.kpis .ladder i { width: 100%; height: 6px; }
.stages.five { grid-template-columns: repeat(auto-fit, minmax(190px, 1fr)); }
.stg-group { font-size: 13px; font-weight: 600; text-transform: uppercase; letter-spacing: .06em; color: var(--text-3); margin: 20px 0 10px; }
.stg-group.prot { color: var(--green); border-top: 1px solid var(--border); padding-top: 20px; margin-top: 24px; }
.stages { display: grid; grid-template-columns: repeat(auto-fit, minmax(240px, 1fr)); gap: 12px; }
.stg { background: var(--card); border: 1px solid var(--border); padding: 16px; }
.stg p { color: var(--text-3); font-size: 14px; margin: 10px 0 0; }

/* rosette */
.rosette { display: block; overflow: visible; }
.rosette .track { fill: var(--dark-2); stroke: var(--card); stroke-width: 2; }
.rosette .track.na { fill: transparent; stroke: var(--border-active); stroke-dasharray: 2 3; stroke-width: 1; }
.rosette .fill { fill: var(--c); stroke: var(--card); stroke-width: 2; }
.rosette .fill.b-unknown { fill: var(--d-unknown); opacity: .75; }
.rosette .w { cursor: default; outline: none; }
.rosette .w:hover .fill, .rosette .w:hover .track { filter: brightness(1.25); }
.rosette .rl { fill: var(--text-3); font: 600 12px "Titillium Web", sans-serif; text-anchor: middle; dominant-baseline: central; }
.board .rosette .track, .board .rosette .fill { stroke-width: 1.2; }

/* chain page */
.crumbs { margin: 28px 0 0; font-size: 14px; color: var(--muted); }
.chain-head { display: grid; grid-template-columns: 240px 1fr; gap: 40px; align-items: center; margin-top: 18px; }
.chain-head .kpis { grid-template-columns: auto minmax(200px, 320px); justify-content: start; }
.grid2 { display: grid; grid-template-columns: repeat(auto-fit, minmax(320px, 1fr)); gap: 12px; }
.card { background: var(--card); border: 1px solid var(--border); padding: 22px 24px; }
.ticks { list-style: none; padding: 0; margin: 0; }
.ticks li { padding: 6px 0 6px 22px; position: relative; color: var(--text-2); border-bottom: 1px solid var(--border); }
.ticks li:last-child { border-bottom: 0; }
.ticks li::before { content: ""; position: absolute; left: 2px; top: 14px; width: 8px; height: 8px; background: var(--pink); }
.slicek { display: inline-grid; place-items: center; width: 26px; height: 26px; background: var(--dark-2); margin-right: 6px; }
.slices td { color: var(--text-2); }
.evidence { margin-top: 6px; font-size: 13px; line-height: 1.7; word-break: break-all; }
.refs { margin-top: 6px; font-size: 12px; color: var(--text-3); }
.refs .ref { display: inline-block; min-width: 20px; text-align: center; margin-left: 4px; padding: 0 4px; background: var(--dark-2); color: var(--text-2); font-weight: 600; }
.refs .ref:hover { background: var(--border-subtle); color: var(--text); text-decoration: none; }
.sources { border: 1px solid var(--border); background: var(--card); padding: 0 24px; }
.sources summary { cursor: pointer; list-style: none; padding: 18px 0; display: flex; align-items: baseline; gap: 16px; flex-wrap: wrap; }
.sources summary::-webkit-details-marker { display: none; }
.sources summary h2 { display: inline; font-size: 20px; margin: 0; }
.sources summary h2::before { content: "+"; display: inline-block; width: 20px; color: var(--purple); }
.sources[open] summary h2::before { content: "−"; }
.sources ol { margin: 0; padding: 0 0 20px 28px; font-size: 13px; line-height: 1.9; word-break: break-all; color: var(--text-3); }
.sources li:target { background: var(--dark-2); }
.answer { border-left: 3px solid var(--purple); padding: 4px 0 4px 20px; max-width: 900px; }
.answer h2 { font-size: 22px; }
.answer p { color: var(--text-2); font-size: 17px; margin: 0; }
.stack { display: flex; height: 22px; gap: 2px; margin: 6px 0 4px; background: var(--card); }
.stack .seg { min-width: 3px; height: 100%; }
.stack .seg:last-child { border-radius: 0 4px 4px 0; }

/* prose */
.prose { max-width: 900px; padding-top: 32px; color: var(--text-2); }
.prose h1 { font-size: 40px; color: var(--text); }
.prose h2 { color: var(--text); margin-top: 1.6em; border-bottom: 1px solid var(--border); padding-bottom: 8px; }
.prose li { margin: 6px 0; }
.prose b { color: var(--text); }

/* tooltip */
#tip { position: fixed; z-index: 50; pointer-events: none; max-width: 320px; background: #0d1117; color: var(--text); font-size: 13px; font-weight: 400;
  border: 1px solid var(--border-subtle); padding: 6px 10px; opacity: 0; transition: opacity .08s; box-shadow: 0 6px 24px rgba(0,0,0,.5); }
#tip.on { opacity: 1; }

@media (max-width: 1100px) {
  .lc-nav .lc-in { justify-content: space-between; }
  .lc-burger { display: block; order: 3; width: 40px; height: 40px; cursor: pointer; position: relative; }
  .lc-burger span, .lc-burger span::before, .lc-burger span::after { position: absolute; left: 8px; width: 24px; height: 2px; background: var(--text); content: ""; }
  .lc-burger span { top: 19px; } .lc-burger span::before { left: 0; top: -7px; } .lc-burger span::after { left: 0; top: 7px; }
  .lc-menu { display: none; position: absolute; top: 72px; left: 0; right: 0; flex-direction: column; align-items: stretch; gap: 0;
    background: #08090C; border-bottom: 1px solid var(--border); padding: 8px 0; max-height: calc(100vh - 72px); overflow: auto; }
  .lc-toggle:checked ~ .lc-menu { display: flex; }
  .lc-menu > a, .lc-dd > a, .lc-dd > span { padding: 12px 24px; }
  .lc-ddm { display: block; position: static; border: 0; background: none; padding: 0 0 6px 16px; }
  .lc-ddm a { padding: 6px 24px; }
  .lc-menu .lc-menu-cta { display: block; margin: 12px 24px; padding: 10px; background: var(--green); color: #08090C; font-weight: 600; text-align: center; }
  .lc-nav .lc-btn { margin-left: auto; padding: 9px 20px; }
}
@media (max-width: 760px) {
  .chain-head { grid-template-columns: 1fr; justify-items: center; text-align: center; }
  .chain-head .kpis { grid-template-columns: 1fr; }
  .ix-brand { font-size: 14px; }
  .ix-bar nav a { padding: 14px 8px; }
}
@media (max-width: 520px) {
  .lc-nav .lc-btn { display: none; }
  .ix-brand .logo { display: none; }
}
@media (forced-colors: active) { .cell, .sw, .seg, .chip { forced-color-adjust: none; } }

/* awaiting-evidence chains */
a.stg.pend { display: block; color: inherit; border-style: dashed; border-color: var(--border-active); }
a.stg.pend:hover { text-decoration: none; border-color: var(--purple); }
.pendbox { border-style: dashed; border-color: var(--border-active); margin: 18px 0; max-width: 620px; }
.pendbox p { color: var(--text-3); margin: 6px 0 0; font-size: 14px; }
.ctrls { display: flex; gap: 12px; flex-wrap: wrap; }
.board td, .board th { padding-left: 10px; padding-right: 10px; }
.board .scol { min-width: 0; }
.board .sbar { width: 64px; }
.board .cell { width: 21px; height: 21px; }