/* BRICK B++ — Terminal Dark Design System
   Tokens from docs/design/bpp-variant/variant-b-plus-plus.jsx */

:root {
  --bg: #0a0a0b;
  --bgElev: #111113;
  --bgInset: #060607;
  --fg: #ededed;
  --fgMuted: #8a8a90;
  --fgSubtle: #5a5a60;
  --fgDim: #3a3a42;
  --border: #1a1a1d;
  --borderBright: #2a2a30;
  --accent: #a8ff60;
  --accentDim: rgba(168,255,96,0.14);
  --brand: #6b82ff;
  --warn: #ff9060;
  --mono: "Geist Mono", ui-monospace, "JetBrains Mono", "SF Mono", Menlo, monospace;
  --sans: "Geist", -apple-system, BlinkMacSystemFont, "Inter", "Helvetica Neue", sans-serif;
}

* { box-sizing: border-box; margin: 0; padding: 0; }
html, body { background: var(--bg); color: var(--fg); overflow-x: hidden; }
body {
  font-family: var(--mono);
  font-size: 13px;
  line-height: 1.55;
  font-variant-numeric: tabular-nums;
  -webkit-font-smoothing: antialiased;
}
.sans { font-family: var(--sans); font-variant-numeric: normal; }

/* Dot grid backdrop */
.grid {
  background-image: radial-gradient(var(--borderBright) 1px, transparent 1px);
  background-size: 24px 24px;
  background-position: 0 0;
}

/* Sticky top bar */
.top {
  position: sticky;
  top: 0;
  z-index: 40;
  background: var(--bg);
  border-bottom: 1px solid var(--border);
}
.topInner {
  padding: 11px 28px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  font-size: 11.5px;
}
.lockup { display: flex; align-items: center; gap: 10px; }
.lockup-text {
  display: flex;
  align-items: baseline;
  gap: 6px;
  font-family: var(--sans);
  font-weight: 600;
  letter-spacing: -0.01em;
  font-size: 14px;
  color: #f4f5f7;
}
.lockup-text .duppla { color: rgba(244,245,247,0.55); font-weight: 500; }
.nav {
  display: flex;
  gap: 20px;
  font-family: var(--sans);
  font-size: 13px;
  margin-left: 24px;
}
.nav a { color: var(--fgMuted); text-decoration: none; }
.nav a:hover { color: var(--fg); }
.nav a.active { color: var(--fg); }
.dot {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--accent);
  display: inline-block;
  margin-right: 7px;
  box-shadow: 0 0 0 3px var(--accentDim);
}
.top-right {
  display: flex;
  gap: 18px;
  align-items: center;
  color: var(--fgMuted);
}
.top-right .sub { color: var(--fgSubtle); }

/* Hero */
.hero {
  padding: 64px 28px 48px;
  border-bottom: 1px solid var(--border);
  position: relative;
  overflow: hidden;
}
.heroInner { position: relative; max-width: 1200px; }
.eyebrow {
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: 0.06em;
  color: var(--fgSubtle);
  margin-bottom: 20px;
  text-transform: uppercase;
}
.h1 {
  font-family: var(--sans);
  font-size: 68px;
  line-height: 0.98;
  font-weight: 500;
  letter-spacing: -0.045em;
  margin: 0 0 22px;
  max-width: 920px;
}
.h1 em { font-style: normal; color: var(--fgMuted); }
.h2 {
  font-family: var(--sans);
  font-size: 30px;
  line-height: 1.1;
  font-weight: 500;
  letter-spacing: -0.028em;
  margin: 0 0 8px;
}
.dek {
  font-family: var(--sans);
  font-size: 16px;
  color: var(--fgMuted);
  max-width: 620px;
  line-height: 1.55;
  margin: 0 0 28px;
}
.ctaRow { display: flex; gap: 10px; }
.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 9px 16px;
  border-radius: 6px;
  font-family: var(--sans);
  font-size: 13px;
  font-weight: 500;
  text-decoration: none;
  cursor: pointer;
  border: 1px solid transparent;
  transition: all .12s;
}
.btn-primary { background: var(--fg); color: var(--bg); }
.btn-primary:hover { background: #fff; box-shadow: 0 0 0 3px rgba(237,237,237,0.08); }
.btn-ghost { background: transparent; color: var(--fg); border-color: var(--borderBright); }
.btn-ghost:hover { background: var(--bgElev); border-color: var(--fgDim); }

/* 4-stat hairline grid */
.stats {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
}
.stat {
  padding: 18px 24px;
  border-right: 1px solid var(--border);
  display: flex;
  flex-direction: column;
  gap: 6px;
  min-height: 92px;
}
.stat:last-child { border-right: none; }
.statLabel {
  font-family: var(--mono);
  font-size: 10.5px;
  color: var(--fgSubtle);
  letter-spacing: 0.08em;
  text-transform: uppercase;
  display: flex;
  align-items: center;
  gap: 6px;
}
.statPrefix { color: var(--accent); }
.statValue {
  font-family: var(--sans);
  font-size: 26px;
  font-weight: 500;
  letter-spacing: -0.02em;
  color: var(--fg);
}
.statSub {
  font-family: var(--mono);
  font-size: 11px;
  color: var(--fgMuted);
}

/* Product shell — table + side panel */
.shell {
  display: grid;
  grid-template-columns: 1.55fr 1fr;
  border-bottom: 1px solid var(--border);
  min-height: 640px;
}
.colLeft {
  border-right: 1px solid var(--border);
  display: flex;
  flex-direction: column;
}
.colRight {
  background: var(--bgElev);
  display: flex;
  flex-direction: column;
}
.panelHead {
  padding: 11px 20px;
  border-bottom: 1px solid var(--border);
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-family: var(--mono);
  font-size: 10.5px;
  color: var(--fgSubtle);
  letter-spacing: 0.08em;
  text-transform: uppercase;
}
.panelTitle { color: var(--fgMuted); }
.panelMeta { color: var(--fgSubtle); }

/* Table */
.tableWrap { flex: 1; overflow: auto; }
.tbl { width: 100%; border-collapse: collapse; font-size: 12.5px; font-family: var(--mono); }
.tbl thead th {
  position: sticky;
  top: 0;
  background: var(--bg);
  text-align: left;
  padding: 9px 16px;
  font-size: 10px;
  font-weight: 500;
  color: var(--fgSubtle);
  letter-spacing: 0.08em;
  text-transform: uppercase;
  border-bottom: 1px solid var(--border);
  z-index: 2;
}
.tbl thead th.num { text-align: right; }
.tbl td { padding: 11px 16px; border-bottom: 1px solid var(--border); vertical-align: middle; }
.tbl tr.row { cursor: pointer; transition: background .1s; }
.tbl tr.row:hover { background: var(--bgElev); }
.tbl tr.row.active { background: var(--bgElev); box-shadow: inset 2px 0 0 var(--accent); }
.num { font-variant-numeric: tabular-nums; text-align: right; }
.badge {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-family: var(--mono);
  font-size: 10.5px;
  padding: 2px 8px;
  border-radius: 3px;
  font-weight: 500;
  letter-spacing: 0.05em;
  text-transform: uppercase;
}
.badge-ok { color: var(--accent); background: var(--accentDim); }
.badge-warn { color: var(--warn); background: rgba(255,144,96,0.14); }
.link { color: var(--brand); text-decoration: none; }
.link:hover { text-decoration: underline; text-underline-offset: 2px; }
.hash { color: var(--fgMuted); cursor: pointer; }
.hash:hover { color: var(--fg); }

/* Side panel body */
.sideBody { flex: 1; overflow: auto; padding: 20px; display: flex; flex-direction: column; gap: 20px; }
.sideCard { border: 1px solid var(--border); background: var(--bgInset); }
.sideCardHead {
  padding: 9px 14px;
  border-bottom: 1px solid var(--border);
  font-family: var(--mono);
  font-size: 10px;
  color: var(--fgSubtle);
  letter-spacing: 0.08em;
  text-transform: uppercase;
  display: flex;
  justify-content: space-between;
  align-items: center;
}
.sideCardBody { padding: 16px; }

/* Merkle proof visualizer */
.proofTree { position: relative; padding: 8px 0; }
.proofRow { display: flex; justify-content: center; align-items: center; gap: 8px; margin-bottom: 18px; position: relative; }
.proofRow:last-child { margin-bottom: 0; }
.proofNode {
  border: 1px solid var(--border);
  background: var(--bgElev);
  padding: 5px 9px;
  font-family: var(--mono);
  font-size: 10px;
  color: var(--fgMuted);
  border-radius: 3px;
  min-width: 72px;
  text-align: center;
}
.proofNode.root { border-color: var(--accent); background: var(--accentDim); color: var(--accent); font-weight: 600; padding: 7px 14px; min-width: 120px; }
.proofNode.proof { border-color: var(--brand); color: var(--brand); }
.proofNode.target { border-color: var(--accent); border-style: dashed; color: var(--accent); background: var(--bgInset); }
.proofNode.dim { opacity: 0.35; }
.proofNode .lbl { font-size: 8.5px; letter-spacing: 0.08em; text-transform: uppercase; display: block; margin-bottom: 2px; opacity: 0.7; }

/* KV rows */
.kv { display: grid; grid-template-columns: auto 1fr; gap: 14px 20px; font-family: var(--mono); font-size: 11.5px; }
.kvL { color: var(--fgSubtle); text-transform: uppercase; letter-spacing: 0.06em; font-size: 10px; }
.kvR { color: var(--fg); text-align: right; font-variant-numeric: tabular-nums; }
.kvR.ok { color: var(--accent); }

/* Assets subtable */
.subTable { width: 100%; border-collapse: collapse; font-family: var(--mono); font-size: 11px; }
.subTable th {
  text-align: left;
  padding: 6px 10px;
  font-size: 9.5px;
  font-weight: 500;
  color: var(--fgSubtle);
  letter-spacing: 0.08em;
  text-transform: uppercase;
  border-bottom: 1px solid var(--border);
}
.subTable th.num { text-align: right; }
.subTable td { padding: 7px 10px; border-bottom: 1px solid var(--border); }
.subTable tr:last-child td { border-bottom: none; }
.subTable td.num { text-align: right; font-variant-numeric: tabular-nums; color: var(--fg); }

/* Terminal log */
.term {
  background: var(--bgInset);
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
  padding: 14px 28px 16px;
  min-height: 180px;
  font-family: var(--mono);
  font-size: 11.5px;
  line-height: 1.7;
}
.termHead {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 10px;
  font-size: 10.5px;
  color: var(--fgSubtle);
  letter-spacing: 0.08em;
  text-transform: uppercase;
}
.termRow { display: grid; grid-template-columns: 70px 90px 1fr; gap: 14px; color: var(--fgMuted); }
.termTime { color: var(--fgDim); }
.termOK { color: var(--accent); }
.termBrand { color: var(--brand); }
.termWarn { color: var(--warn); }

/* Why section */
.why { padding: 64px 28px; border-bottom: 1px solid var(--border); }
.whyGrid { display: grid; grid-template-columns: 1fr 2fr; gap: 64px; align-items: start; }
.whyProse { font-family: var(--sans); font-size: 16px; line-height: 1.65; color: var(--fgMuted); max-width: 640px; }
.whyProse p { margin: 0 0 14px; }
.whyProse strong { color: var(--fg); font-weight: 500; }

/* Gates */
.gates { padding: 48px 28px; border-bottom: 1px solid var(--border); }
.gatesHead {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  margin-bottom: 20px;
  padding-bottom: 10px;
  border-bottom: 1px solid var(--border);
}
.gatesGrid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  border-top: 1px solid var(--border);
  border-left: 1px solid var(--border);
}
.gate {
  padding: 18px 20px;
  border-right: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
  min-height: 110px;
  display: flex;
  flex-direction: column;
  gap: 8px;
}
.gateN { font-family: var(--mono); font-size: 10px; color: var(--fgSubtle); letter-spacing: 0.08em; }
.gateText { font-family: var(--sans); font-size: 14px; color: var(--fg); line-height: 1.35; flex: 1; }
.gateStatus { font-family: var(--mono); font-size: 10px; letter-spacing: 0.08em; text-transform: uppercase; }
.gateStatus.ok { color: var(--accent); }
.gateStatus.pending { color: var(--warn); }

/* Footer */
.footer {
  padding: 20px 28px;
  font-family: var(--mono);
  font-size: 10.5px;
  color: var(--fgSubtle);
  display: flex;
  justify-content: space-between;
  letter-spacing: 0.04em;
}

/* Verify page specific */
.verifyHead { padding: 56px 28px 32px; border-bottom: 1px solid var(--border); }
.steps { padding: 40px 28px; border-bottom: 1px solid var(--border); }
.stepsHead {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  margin-bottom: 20px;
  padding-bottom: 10px;
  border-bottom: 1px solid var(--border);
}
.stepGrid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 0;
  border-top: 1px solid var(--border);
  border-left: 1px solid var(--border);
}
.step {
  padding: 20px 22px;
  border-right: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
  display: flex;
  flex-direction: column;
  gap: 6px;
  min-height: 130px;
}
.stepN { font-family: var(--mono); font-size: 11px; color: var(--accent); letter-spacing: 0.08em; }
.stepT { font-family: var(--sans); font-size: 15px; font-weight: 500; color: var(--fg); }
.stepB { font-family: var(--sans); font-size: 12.5px; color: var(--fgMuted); line-height: 1.5; }

/* Roadmap */
.roadmap { padding: 56px 28px; border-bottom: 1px solid var(--border); }
.roadmapHead { margin-bottom: 28px; }
.roadmapList { border-top: 1px solid var(--border); }
.roadmapItem {
  display: grid;
  grid-template-columns: 60px 1fr auto;
  padding: 18px 0;
  border-bottom: 1px solid var(--border);
  align-items: center;
  gap: 20px;
}
.roadmapN { font-family: var(--mono); font-size: 11px; color: var(--fgSubtle); letter-spacing: 0.1em; }
.roadmapT { font-family: var(--sans); font-size: 15px; font-weight: 500; color: var(--fg); margin-bottom: 3px; }
.roadmapB { font-family: var(--sans); font-size: 13px; color: var(--fgMuted); line-height: 1.5; }
.roadmapBadge {
  font-family: var(--mono);
  font-size: 10px;
  color: var(--fgSubtle);
  padding: 3px 9px;
  border: 1px solid var(--border);
  border-radius: 3px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  white-space: nowrap;
}
.roadmapBadge.exploring { color: var(--brand); border-color: var(--brand); }

/* CLI box (verify page side panel) */
.cliBox { font-family: var(--mono); font-size: 11px; color: var(--fgMuted); line-height: 1.7; }
.cliBox .cmd { color: var(--fgSubtle); }
.cliBox .out { color: var(--accent); }

/* ─── Mobile ─── */
@media (max-width: 768px) {
  .topInner { padding: 10px 16px; flex-wrap: wrap; gap: 8px; }
  .top-right { display: none; }
  .nav { margin-left: 16px; gap: 14px; font-size: 12px; }
  .hero { padding: 40px 16px 32px; }
  .h1 { font-size: 36px; letter-spacing: -0.03em; }
  .dek { font-size: 14px; }
  .stats { grid-template-columns: repeat(2, 1fr); }
  .stat { border-right: none; border-bottom: 1px solid var(--border); }
  .stat:nth-child(odd) { border-right: 1px solid var(--border); }
  .stat:nth-last-child(-n+2) { border-bottom: none; }
  .shell { grid-template-columns: 1fr; min-height: auto; }
  .colLeft { border-right: none; border-bottom: 1px solid var(--border); max-height: 360px; }
  .tbl thead th, .tbl td { padding: 9px 10px; font-size: 11px; white-space: nowrap; }
  .tbl .col-hash { display: none; }
  .term { padding: 12px 16px; min-height: 140px; }
  .termRow { grid-template-columns: 55px 70px 1fr; gap: 8px; font-size: 10.5px; }
  .why { padding: 40px 16px; }
  .whyGrid { grid-template-columns: 1fr; gap: 28px; }
  .gates { padding: 32px 16px; }
  .gatesGrid { grid-template-columns: repeat(2, 1fr); }
  .stepGrid { grid-template-columns: repeat(2, 1fr); }
  .roadmapItem { grid-template-columns: 40px 1fr; gap: 12px; }
  .roadmapItem > :last-child { grid-column: 2; }
  .footer { padding: 16px; flex-direction: column; gap: 6px; text-align: center; }
}

@media (max-width: 480px) {
  .stats { grid-template-columns: 1fr; }
  .stat { border-right: none; }
  .gatesGrid { grid-template-columns: 1fr; }
  .stepGrid { grid-template-columns: 1fr; }
}