* { box-sizing: border-box; }
html, body { margin: 0; padding: 0; }
body {
  background: var(--bg-canvas);
  color: var(--text-1);
  font-family: var(--font-body);
  font-size: 14px;
  line-height: 1.5;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

button { font-family: inherit; cursor: pointer; border: 0; background: none; color: inherit; }
input, select, textarea { font-family: inherit; color: inherit; }
a { color: inherit; text-decoration: none; }

/* ——— Shell ——— */
.app {
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  background: var(--bg-canvas);
}

/* Top bar */
.topbar {
  position: sticky; top: 0; z-index: 10;
  background: color-mix(in srgb, var(--bg-canvas) 92%, transparent);
  backdrop-filter: blur(12px) saturate(1.2);
  -webkit-backdrop-filter: blur(12px) saturate(1.2);
  border-bottom: 1px solid var(--border);
  padding: 10px 28px;
  display: flex;
  align-items: center;
  gap: 24px;
}
.topbar__brand {
  display: flex; align-items: center; gap: 10px;
  font-family: var(--font-display);
  font-weight: 600;
  font-size: 17px;
  letter-spacing: -0.015em;
  color: var(--text-1);
  padding-right: 16px;
  border-right: 1px solid var(--border);
  margin-right: 4px;
  height: 32px;
}
.topbar__brand svg { flex: 0 0 auto; }
.topbar__meta {
  font-family: var(--font-mono);
  font-size: 10px;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--text-3);
  line-height: 1;
}
.topbar__meta b { color: var(--text-1); font-weight: 600; }
.topbar__nav { display: flex; gap: 2px; flex: 1; }
.navlink {
  padding: 8px 12px;
  border-radius: var(--r-md);
  font-size: 13px;
  font-weight: 500;
  color: var(--text-2);
  transition: background 0.12s, color 0.12s;
  white-space: nowrap;
  display: flex; align-items: center; gap: 7px;
}
.navlink:hover { background: var(--bg-muted); color: var(--text-1); }
.navlink[aria-current="page"] {
  background: var(--bg-surface);
  color: var(--text-1);
  box-shadow: inset 0 0 0 1px var(--border);
}
.navlink__dot { width: 6px; height: 6px; border-radius: 50%; background: var(--amber); opacity: 0; }
.navlink[aria-current="page"] .navlink__dot { opacity: 1; }
.topbar__right { display: flex; align-items: center; gap: 10px; }

/* Secondary bar (sub-nav under topbar) */
.subbar {
  display: flex;
  align-items: center;
  gap: 18px;
  padding: 10px 28px;
  background: var(--bg-surface);
  border-bottom: 1px solid var(--border);
}
.subbar__path {
  display: flex; align-items: center; gap: 8px;
  font-family: var(--font-display);
  font-weight: 600;
  font-size: 15px;
  letter-spacing: -0.01em;
  color: var(--text-1);
}
.subbar__path .sep { color: var(--text-3); font-weight: 400; }
.subbar__kpis { display: flex; gap: 0; margin-left: auto; }

/* Page canvas */
.canvas {
  padding: 24px 28px 64px;
  max-width: 1600px;
  margin: 0 auto;
  width: 100%;
}

/* ——— Primitives ——— */
.eyebrow {
  font-family: var(--font-mono);
  font-size: 10px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--text-3);
  font-weight: 500;
}
.mono { font-family: var(--font-mono); }
.num { font-family: var(--font-mono); font-variant-numeric: tabular-nums; }
.display-1 {
  font-family: var(--font-display);
  font-weight: 600;
  font-size: 32px;
  line-height: 1.08;
  letter-spacing: -0.02em;
  color: var(--text-1);
  margin: 0;
}
.display-2 {
  font-family: var(--font-display);
  font-weight: 600;
  font-size: 22px;
  line-height: 1.15;
  letter-spacing: -0.015em;
  color: var(--text-1);
  margin: 0;
}
.h3 {
  font-family: var(--font-display);
  font-weight: 600;
  font-size: 15px;
  letter-spacing: -0.005em;
  color: var(--text-1);
  margin: 0;
}

/* Card */
.card {
  background: var(--bg-surface);
  border: 1px solid var(--border);
  border-radius: var(--r-lg);
  padding: var(--pad-card);
}
.card--pad0 { padding: 0; }
.card__head {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 12px;
  margin-bottom: 14px;
}
.card__head--sticky {
  padding: var(--pad-card);
  border-bottom: 1px solid var(--border);
  margin-bottom: 0;
}
.card__title { display: flex; align-items: baseline; gap: 8px; }
.card__title .help {
  color: var(--text-3);
  font-weight: 400;
  font-size: 13px;
  cursor: help;
}
.card__actions { display: flex; gap: 6px; }

/* Pill / badge */
.pill {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 3px 8px;
  border-radius: 999px;
  font-size: 11px;
  font-weight: 500;
  border: 1px solid var(--border);
  background: var(--bg-muted);
  color: var(--text-2);
  white-space: nowrap;
}
.pill--amber { background: var(--amber-tint); color: var(--amber); border-color: color-mix(in srgb, var(--amber) 35%, transparent); }
.pill--pos { background: color-mix(in srgb, var(--pos) 10%, transparent); color: var(--pos); border-color: color-mix(in srgb, var(--pos) 30%, transparent); }
.pill--neg { background: color-mix(in srgb, var(--neg) 10%, transparent); color: var(--neg); border-color: color-mix(in srgb, var(--neg) 30%, transparent); }
.pill--warn { background: color-mix(in srgb, var(--warn) 10%, transparent); color: var(--warn); border-color: color-mix(in srgb, var(--warn) 30%, transparent); }
.pill--info { background: color-mix(in srgb, var(--info) 10%, transparent); color: var(--info); border-color: color-mix(in srgb, var(--info) 30%, transparent); }
.pill--dot::before { content: ""; width: 6px; height: 6px; border-radius: 50%; background: currentColor; }
.pill--ghost { background: transparent; }

/* Button */
.btn {
  display: inline-flex; align-items: center; gap: 6px;
  height: 32px; padding: 0 12px;
  border-radius: var(--r-md);
  font-size: 13px; font-weight: 500;
  background: var(--bg-surface);
  border: 1px solid var(--border);
  color: var(--text-1);
  transition: background 0.12s, border-color 0.12s;
}
.btn:hover { background: var(--bg-muted); border-color: var(--border-strong); }
.btn--primary {
  background: var(--bg-inverse);
  color: var(--text-inv);
  border-color: var(--bg-inverse);
}
.btn--primary:hover { background: color-mix(in srgb, var(--bg-inverse) 85%, black); }
.btn--amber {
  background: var(--amber);
  color: white;
  border-color: var(--amber);
}
.btn--amber:hover { background: color-mix(in srgb, var(--amber) 88%, black); }
.btn--ghost { background: transparent; border-color: transparent; }
.btn--ghost:hover { background: var(--bg-muted); border-color: transparent; }
.btn--sm { height: 26px; padding: 0 8px; font-size: 12px; border-radius: var(--r-sm); }
.btn--icon { width: 32px; padding: 0; justify-content: center; }
.btn--icon.btn--sm { width: 26px; }

/* KPI block (in subbar) */
.kpi {
  display: flex; flex-direction: column; gap: 2px;
  padding: 0 16px;
  border-left: 1px solid var(--border);
  min-width: 130px;
}
.kpi:first-child { border-left: 0; padding-left: 0; }
.kpi__label {
  font-family: var(--font-mono);
  font-size: 9px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--text-3);
}
.kpi__value {
  font-family: var(--font-mono);
  font-variant-numeric: tabular-nums;
  font-size: 15px;
  font-weight: 600;
  color: var(--text-1);
  line-height: 1.1;
}
.kpi__delta { font-size: 11px; font-weight: 500; }
.kpi__delta--pos { color: var(--pos); }
.kpi__delta--neg { color: var(--neg); }

/* Stat tile */
.stat {
  padding: 14px;
  border-radius: var(--r-md);
  background: var(--bg-muted);
  border: 1px solid var(--border);
}
.stat__label {
  font-family: var(--font-mono);
  font-size: 10px;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--text-3);
}
.stat__value {
  margin-top: 6px;
  font-family: var(--font-mono);
  font-variant-numeric: tabular-nums;
  font-size: 18px;
  font-weight: 600;
  color: var(--text-1);
}

/* Table */
.tbl {
  width: 100%;
  border-collapse: collapse;
  font-size: 13px;
}
.tbl th, .tbl td {
  text-align: left;
  padding: 11px 14px;
  border-bottom: 1px solid var(--border);
  vertical-align: middle;
}
.tbl th {
  font-family: var(--font-mono);
  font-size: 10px;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--text-3);
  font-weight: 500;
  background: var(--bg-muted);
  border-bottom: 1px solid var(--border);
}
.tbl tr:last-child td { border-bottom: 0; }
.tbl tr { transition: background 0.1s; }
.tbl tr.row--hover:hover td { background: var(--bg-muted); cursor: pointer; }
.tbl td.num, .tbl th.num { text-align: right; font-variant-numeric: tabular-nums; font-family: var(--font-mono); }

/* Grids */
.grid { display: grid; gap: 16px; }
.grid--4 { grid-template-columns: repeat(4, 1fr); }
.grid--3 { grid-template-columns: repeat(3, 1fr); }
.grid--2 { grid-template-columns: repeat(2, 1fr); }
.grid--hero { grid-template-columns: 1.2fr 1fr 1fr; }
.grid--split { grid-template-columns: 2fr 1fr; }

/* Tabs */
.tabs { display: flex; gap: 2px; border-bottom: 1px solid var(--border); }
.tab {
  padding: 10px 14px;
  font-size: 13px;
  font-weight: 500;
  color: var(--text-3);
  border-bottom: 2px solid transparent;
  margin-bottom: -1px;
  transition: color 0.12s, border-color 0.12s;
}
.tab:hover { color: var(--text-1); }
.tab[aria-selected="true"] {
  color: var(--text-1);
  border-bottom-color: var(--amber);
}
.tab .count {
  margin-left: 6px; padding: 1px 6px;
  font-family: var(--font-mono);
  font-size: 10px;
  color: var(--text-3);
  background: var(--bg-muted);
  border-radius: 999px;
}

/* Sidebar variant */
.shell--side { display: grid; grid-template-columns: 220px 1fr; min-height: 100vh; }
.shell--side.collapsed { grid-template-columns: 60px 1fr; }
.sidebar {
  background: var(--bg-surface);
  border-right: 1px solid var(--border);
  padding: 18px 12px;
  display: flex; flex-direction: column; gap: 4px;
  position: sticky; top: 0; height: 100vh;
  overflow-y: auto;
}
.sidebar .navlink { width: 100%; }
.sidebar__group { margin-top: 16px; font-family: var(--font-mono); font-size: 10px; letter-spacing: 0.14em; text-transform: uppercase; color: var(--text-3); padding: 0 12px 6px; }
.sidebar .topbar__brand { border-right: 0; padding-right: 0; margin-bottom: 12px; }
.collapsed .navlink span:not(.navlink__dot) { display: none; }
.collapsed .sidebar__group { display: none; }
.collapsed .topbar__brand span { display: none; }

/* Tweaks panel */
.tweaks {
  position: fixed;
  right: 20px;
  bottom: 20px;
  width: 280px;
  z-index: 50;
  background: var(--bg-surface);
  border: 1px solid var(--border);
  border-radius: var(--r-lg);
  box-shadow: var(--shadow-lg);
  font-size: 13px;
  transform-origin: bottom right;
}
.tweaks__head {
  display: flex; align-items: center; justify-content: space-between;
  padding: 12px 14px;
  border-bottom: 1px solid var(--border);
  font-family: var(--font-display);
  font-weight: 600;
}
.tweaks__body { padding: 14px; display: flex; flex-direction: column; gap: 14px; }
.tweaks__row { display: flex; flex-direction: column; gap: 6px; }
.tweaks__row > label { font-size: 11px; color: var(--text-3); font-family: var(--font-mono); text-transform: uppercase; letter-spacing: 0.1em; }
.segmented { display: flex; gap: 2px; background: var(--bg-muted); border-radius: var(--r-md); padding: 2px; }
.segmented button {
  flex: 1;
  padding: 5px 8px;
  font-size: 12px;
  border-radius: 4px;
  color: var(--text-2);
}
.segmented button[aria-pressed="true"] {
  background: var(--bg-surface);
  color: var(--text-1);
  box-shadow: var(--shadow-sm);
}

/* Misc */
.divider { height: 1px; background: var(--border); margin: 16px 0; border: 0; }
.row { display: flex; align-items: center; gap: 10px; }
.row--sb { justify-content: space-between; }
.dot {
  width: 8px; height: 8px; border-radius: 50%;
  display: inline-block; flex: none;
}
.spark { display: block; width: 100%; height: 28px; }

/* Progress */
.bar {
  height: 6px;
  background: var(--bg-sunk);
  border-radius: 999px;
  overflow: hidden;
  position: relative;
}
.bar__fill { height: 100%; background: var(--amber); border-radius: 999px; }

/* Signature line (for attestations) */
.attest {
  display: grid;
  grid-template-columns: 140px 1fr auto;
  gap: 12px;
  align-items: center;
  padding: 12px 0;
  border-bottom: 1px dashed var(--border);
}
.attest:last-child { border-bottom: 0; }
.attest__role { font-size: 11px; color: var(--text-3); font-family: var(--font-mono); letter-spacing: 0.08em; text-transform: uppercase; }
.attest__name { font-weight: 500; }
.attest__addr { font-family: var(--font-mono); font-size: 11px; color: var(--text-3); margin-top: 2px; }

/* Ledger / glassbox rows */
.ledger {
  font-family: var(--font-mono);
  font-size: 12px;
}
.ledger__row {
  display: grid;
  grid-template-columns: 80px 1fr 110px 90px 110px;
  gap: 12px;
  padding: 10px 14px;
  border-bottom: 1px solid var(--border);
  align-items: center;
}
.ledger__row:hover { background: var(--bg-muted); }
.ledger__hash { color: var(--text-3); }
.ledger__hash b { color: var(--amber); font-weight: 500; }

/* Charts */
.chart-legend { display: flex; flex-wrap: wrap; gap: 10px 14px; margin-top: 12px; font-size: 12px; }
.chart-legend__item { display: flex; align-items: center; gap: 6px; color: var(--text-2); }
.chart-legend__dot { width: 8px; height: 8px; border-radius: 2px; }
.chart-legend__value { color: var(--text-3); font-family: var(--font-mono); font-variant-numeric: tabular-nums; margin-left: auto; }

/* Marketplace order book */
.book {
  display: grid;
  grid-template-columns: 1fr 1fr;
  font-family: var(--font-mono);
  font-size: 12px;
}
.book__col { padding: 8px 0; }
.book__row {
  display: grid;
  grid-template-columns: 1fr 1fr 1fr;
  gap: 8px;
  padding: 4px 14px;
  position: relative;
  font-variant-numeric: tabular-nums;
}
.book__row .fill {
  position: absolute; top: 0; bottom: 0; right: 0;
  opacity: 0.12;
  z-index: 0;
}
.book__row > * { position: relative; z-index: 1; }
.book__row--bid .fill { background: var(--pos); left: auto; }
.book__row--ask .fill { background: var(--neg); left: auto; }

/* Utility */
.muted { color: var(--text-3); }
.stack { display: flex; flex-direction: column; gap: 14px; }
.stack-sm { display: flex; flex-direction: column; gap: 8px; }
.col-span-2 { grid-column: span 2; }
.col-span-3 { grid-column: span 3; }
.col-span-4 { grid-column: span 4; }
.text-sm { font-size: 12px; }
.text-lg { font-size: 16px; }
.bold { font-weight: 600; }
.pos { color: var(--pos); }
.neg { color: var(--neg); }
.amber { color: var(--amber); }

/* Portal landing */
.hero {
  padding: 72px 28px 48px;
  max-width: 1200px;
  margin: 0 auto;
}
.hero h1 {
  font-family: var(--font-display);
  font-weight: 600;
  font-size: 64px;
  line-height: 1.02;
  letter-spacing: -0.035em;
  max-width: 18ch;
  margin: 24px 0 24px;
}
.hero h1 em { color: var(--amber); font-style: normal; }
.hero p { font-size: 17px; max-width: 60ch; color: var(--text-2); margin-bottom: 28px; }

/* Tooltip-ish */
.help-ring {
  display: inline-flex; align-items: center; justify-content: center;
  width: 14px; height: 14px;
  border: 1px solid var(--border-strong);
  border-radius: 50%;
  font-size: 9px;
  color: var(--text-3);
  cursor: help;
}

/* Mini map for SPV cells */
.cells {
  display: grid;
  grid-template-columns: repeat(8, 1fr);
  gap: 4px;
}
.cells__cell {
  aspect-ratio: 1;
  border-radius: 4px;
  background: var(--bg-sunk);
  border: 1px solid var(--border);
  position: relative;
  transition: transform 0.1s;
  cursor: pointer;
}
.cells__cell:hover { transform: scale(1.1); z-index: 2; box-shadow: var(--shadow-md); }
.cells__cell--active { background: var(--amber); border-color: var(--amber); }
.cells__cell--pending { background: var(--amber-soft); }
.cells__cell--review { background: var(--viz-4); border-color: var(--viz-4); }

/* Scrollbar cleanup */
::-webkit-scrollbar { width: 10px; height: 10px; }
::-webkit-scrollbar-track { background: transparent; }
::-webkit-scrollbar-thumb { background: var(--border); border-radius: 999px; }
::-webkit-scrollbar-thumb:hover { background: var(--border-strong); }