/* ------------------------------------------------------------------
   Conflux — hi-fi light (paper) direction
   ------------------------------------------------------------------ */
@import url('https://fonts.googleapis.com/css2?family=JetBrains+Mono:wght@400;500;600;700&display=swap');

:root {
  --paper:        #f4f1ea;
  --paper-2:      #ece7da;
  --paper-3:      #e0d9c5;
  --paper-tint:   #faf8f2;
  --ink:          #14130f;
  --ink-2:        #3a362d;
  --ink-3:        #6e6757;
  --ink-4:        #aaa28d;
  --ink-5:        #d2cab4;
  --rule:         #14130f;
  --rule-soft:    #c9c1a8;
  --shipped:      #4a7a52;
  --shipped-bg:   #d8e4d6;
  --planned:      #b87530;
  --planned-bg:   #f0e2c8;
  --research:     #6b6157;
  --research-bg:  #ddd6c4;
  --brand:        #c9a25a;
  --brand-deep:   #a07d3d;
  --sans:         "Helvetica Neue", Helvetica, Arial, sans-serif;
  --mono:         "JetBrains Mono", ui-monospace, Menlo, monospace;

  --container:    1280px;
  --gutter:       40px;
}

* { box-sizing: border-box; }

html, body {
  margin: 0;
  background: var(--paper);
  color: var(--ink);
  font-family: var(--sans);
  font-size: 16px;
  line-height: 1.55;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

::selection { background: var(--brand); color: var(--ink); }

a { color: inherit; text-underline-offset: 3px; }
a:hover { text-decoration-color: var(--brand); }

img, svg { display: block; }

/* ── layout ───────────────────────────────────────────────── */
.container {
  width: 100%;
  max-width: var(--container);
  margin: 0 auto;
  padding: 0 var(--gutter);
}
@media (max-width: 720px) {
  :root { --gutter: 22px; }
}

section { position: relative; }

.section-head {
  display: grid;
  grid-template-columns: 96px 1fr;
  gap: 28px;
  align-items: baseline;
  padding: 28px 0 22px;
  border-top: 1px solid var(--ink);
}
.section-head .num {
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: 0.18em;
  color: var(--ink-3);
  padding-top: 6px;
}
.section-head h2 {
  font-size: clamp(36px, 4.6vw, 56px);
  font-weight: 600;
  letter-spacing: -0.025em;
  line-height: 1.02;
  margin: 0 0 10px;
  text-wrap: balance;
}
.section-head .lede {
  font-size: 18px;
  color: var(--ink-2);
  max-width: 720px;
  text-wrap: pretty;
  margin: 0;
}
.section-body { padding: 36px 0 96px; }

@media (max-width: 720px) {
  .section-head { grid-template-columns: 1fr; gap: 8px; }
  .section-head .num { padding-top: 0; }
  .section-body { padding: 24px 0 64px; }
}

/* ── type ─────────────────────────────────────────────────── */
.eyebrow {
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--ink-3);
}
.eyebrow .dot {
  display: inline-block;
  width: 6px; height: 6px;
  border-radius: 999px;
  background: var(--brand);
  margin-right: 8px;
  vertical-align: 1px;
}
.mono { font-family: var(--mono); }
code {
  font-family: var(--mono);
  font-size: 0.86em;
  background: var(--paper-2);
  padding: 1px 5px;
  border-radius: 3px;
  white-space: nowrap;
}
.h-display {
  font-weight: 600;
  letter-spacing: -0.03em;
  line-height: 0.98;
  text-wrap: balance;
}
.h-display em {
  font-style: normal;
  font-weight: 600;
  color: var(--brand-deep);
}
.cap {
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: 0.06em;
  color: var(--ink-3);
  text-transform: lowercase;
}

/* ── nav ──────────────────────────────────────────────────── */
.nav {
  position: sticky;
  top: 0;
  z-index: 50;
  background: rgba(244, 241, 234, 0.88);
  backdrop-filter: saturate(120%) blur(8px);
  -webkit-backdrop-filter: saturate(120%) blur(8px);
  border-bottom: 1px solid var(--rule-soft);
}
.nav-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 14px 0;
}
.nav .brand {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-weight: 600;
  font-size: 18px;
  letter-spacing: -0.02em;
  text-decoration: none;
}
.nav .brand .ver {
  font-family: var(--mono);
  font-size: 11px;
  color: var(--ink-3);
  margin-left: 4px;
  font-weight: 400;
}
.nav-links {
  display: flex;
  gap: 28px;
  font-family: var(--mono);
  font-size: 12px;
  color: var(--ink-2);
}
.nav-links a {
  text-decoration: none;
  letter-spacing: 0.04em;
}
.nav-links a:hover { color: var(--ink); }
.nav-cta {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-family: var(--mono);
  font-size: 12px;
  padding: 8px 14px;
  background: var(--ink);
  color: var(--paper);
  text-decoration: none;
  border-radius: 2px;
}
.nav-cta:hover { background: var(--brand-deep); }
@media (max-width: 860px) {
  .nav-links { display: none; }
}

/* ── hero ─────────────────────────────────────────────────── */
.hero {
  padding: 64px 0 28px;
}
.hero-grid {
  display: grid;
  grid-template-columns: 1.1fr 1fr;
  gap: 56px;
  align-items: start;
}
@media (max-width: 980px) {
  .hero-grid { grid-template-columns: 1fr; gap: 36px; }
}
.hero h1 {
  font-size: clamp(44px, 5.6vw, 76px);
  margin: 18px 0 22px;
}
.hero .sub {
  font-size: 19px;
  color: var(--ink-2);
  max-width: 560px;
  margin: 0 0 30px;
}
.hero-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 22px 36px;
  margin: 24px 0 0;
  padding-top: 22px;
  border-top: 1px dashed var(--rule-soft);
  font-family: var(--mono);
  font-size: 12px;
  color: var(--ink-3);
}
.hero-meta b { font-weight: 600; color: var(--ink); }

.cta-row {
  display: flex; flex-wrap: wrap; gap: 12px;
}
.btn {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 12px 18px;
  border: 1px solid var(--ink);
  background: var(--paper);
  color: var(--ink);
  font-family: var(--sans);
  font-size: 14px;
  font-weight: 500;
  text-decoration: none;
  border-radius: 2px;
  transition: transform 100ms ease, background 120ms;
}
.btn:hover { transform: translateY(-1px); }
.btn-dark   { background: var(--ink); color: var(--paper); }
.btn-dark:hover { background: var(--brand-deep); }
.btn-ghost  { background: transparent; }
.btn-ghost:hover { background: var(--paper-2); }
.btn .arrow { font-family: var(--mono); font-weight: 400; }

/* ── code panels ──────────────────────────────────────────── */
.panel {
  border: 1px solid var(--ink);
  border-radius: 4px;
  overflow: hidden;
  background: var(--paper-tint);
}
.panel-bar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 10px 14px;
  border-bottom: 1px solid var(--rule-soft);
  background: var(--paper-2);
  font-family: var(--mono);
  font-size: 11px;
  color: var(--ink-3);
}
.panel-bar .dots {
  display: inline-flex; gap: 6px; margin-right: 10px;
}
.panel-bar .dot {
  width: 9px; height: 9px; border-radius: 999px; background: var(--ink-5);
}
.panel-bar .dot.brand { background: var(--brand); }
.panel-bar .file { color: var(--ink); font-weight: 500; }
.panel-bar .meta { color: var(--ink-3); }

.panel-body { padding: 18px 22px 22px; }

/* code-card body */
.code-summary {
  display: grid;
  gap: 14px;
}
.code-summary .what {
  font-size: 14px;
  color: var(--ink-2);
}
.code-summary .what b { color: var(--ink); font-weight: 600; }
.code-summary ul {
  margin: 0;
  padding: 0 0 0 0;
  list-style: none;
  display: grid;
  gap: 8px;
}
.code-summary li {
  position: relative;
  padding-left: 22px;
  font-family: var(--mono);
  font-size: 12px;
  color: var(--ink-2);
  line-height: 1.5;
}
.code-summary li::before {
  content: "›";
  position: absolute;
  left: 4px;
  top: 0;
  color: var(--brand-deep);
  font-weight: 600;
}
.code-summary li code {
  font-size: 11px;
  background: var(--paper-2);
  padding: 1px 5px;
  border-radius: 3px;
}
.code-summary .footnote {
  margin-top: 6px;
  padding-top: 12px;
  border-top: 1px dashed var(--rule-soft);
  font-family: var(--mono);
  font-size: 11px;
  color: var(--ink-3);
}

/* ── problem cards ────────────────────────────────────────── */
.trap-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1px;
  background: var(--rule-soft);
  border: 1px solid var(--rule-soft);
  border-radius: 3px;
  overflow: hidden;
}
.trap {
  background: var(--paper);
  padding: 22px 22px 24px;
  display: flex;
  flex-direction: column;
  gap: 10px;
  min-height: 200px;
}
.trap .tag {
  font-family: var(--mono);
  font-size: 10px;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--planned);
}
.trap h3 {
  margin: 4px 0 4px;
  font-size: 19px;
  font-weight: 600;
  letter-spacing: -0.015em;
  line-height: 1.18;
}
.trap p {
  margin: 0;
  font-size: 14px;
  color: var(--ink-2);
  line-height: 1.5;
}
.trap .conflux {
  margin-top: auto;
  padding-top: 14px;
  border-top: 1px dashed var(--rule-soft);
  font-family: var(--mono);
  font-size: 11px;
  color: var(--ink);
}
.trap .conflux b { color: var(--brand-deep); font-weight: 600; }

@media (max-width: 980px) { .trap-grid { grid-template-columns: repeat(2, 1fr); } }
@media (max-width: 560px) { .trap-grid { grid-template-columns: 1fr; } }

/* ── api tabs ─────────────────────────────────────────────── */
.api-wrap {
  display: grid;
  grid-template-columns: 280px 1fr;
  gap: 36px;
  align-items: start;
}
@media (max-width: 860px) {
  .api-wrap { grid-template-columns: 1fr; }
}
.api-side h3 {
  margin: 0 0 8px;
  font-size: 22px;
  font-weight: 600;
  letter-spacing: -0.02em;
}
.api-side p {
  margin: 0 0 18px;
  font-size: 14px;
  color: var(--ink-2);
}
.api-tabs {
  display: flex;
  flex-direction: column;
  border: 1px solid var(--rule-soft);
  border-radius: 3px;
  overflow: hidden;
}
.api-tab {
  appearance: none;
  border: 0;
  background: var(--paper-tint);
  text-align: left;
  padding: 12px 14px;
  font-family: var(--mono);
  font-size: 12px;
  color: var(--ink-2);
  cursor: pointer;
  border-bottom: 1px solid var(--rule-soft);
  display: flex;
  align-items: center;
  gap: 10px;
  transition: background 100ms;
}
.api-tab:last-child { border-bottom: 0; }
.api-tab:hover { background: var(--paper-2); color: var(--ink); }
.api-tab[aria-selected="true"] {
  background: var(--ink);
  color: var(--paper);
}
.api-tab .idx {
  width: 22px;
  text-align: center;
  color: var(--ink-3);
  font-size: 10px;
}
.api-tab[aria-selected="true"] .idx { color: var(--paper-3); }
.api-tab .name { flex: 1; }
.api-tab .kind {
  font-size: 10px; letter-spacing: 0.1em; text-transform: uppercase; color: var(--ink-3);
}
.api-tab[aria-selected="true"] .kind { color: var(--paper-3); }

.api-panel { min-height: 380px; }
.api-panel[hidden] { display: none; }

/* ── architecture ─────────────────────────────────────────── */
.arch {
  display: grid;
  grid-template-columns: 1.2fr 1fr;
  gap: 48px;
  align-items: start;
}
@media (max-width: 980px) { .arch { grid-template-columns: 1fr; } }
.stack {
  display: flex;
  flex-direction: column;
  gap: 6px;
  border-top: 1px solid var(--ink);
  border-bottom: 1px solid var(--ink);
  padding: 16px 0;
}
.layer {
  display: grid;
  grid-template-columns: 38px 1.4fr 1fr 90px;
  align-items: center;
  gap: 18px;
  padding: 18px 16px;
  border-radius: 3px;
  cursor: default;
  transition: background 140ms, color 140ms;
}
.layer .mark {
  font-family: var(--mono);
  font-size: 10px;
  color: var(--ink-3);
  letter-spacing: 0.1em;
}
.layer .name {
  font-size: 17px;
  font-weight: 600;
  letter-spacing: -0.015em;
}
.layer .role {
  font-size: 13px;
  color: var(--ink-2);
}
.layer .kind {
  justify-self: end;
  font-family: var(--mono);
  font-size: 10px;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--ink-3);
}
.layer + .layer { border-top: 1px dashed var(--rule-soft); }
.layer:hover {
  background: var(--ink);
  color: var(--paper);
}
.layer:hover .mark,
.layer:hover .role,
.layer:hover .kind { color: var(--paper-3); }
.layer.kernel:hover { background: var(--brand-deep); }

.arch-side dl {
  margin: 0;
  display: grid;
  gap: 18px;
}
.arch-side dt {
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--ink-3);
  margin-bottom: 4px;
}
.arch-side dd {
  margin: 0;
  font-size: 15px;
  color: var(--ink-2);
}
.arch-side dd b { color: var(--ink); font-weight: 600; }

@media (max-width: 720px) {
  .layer { grid-template-columns: 28px 1fr; gap: 10px; padding: 14px 10px; }
  .layer .role, .layer .kind { display: none; }
}

/* ── performance grid ─────────────────────────────────────── */
.perf-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1px;
  background: var(--rule-soft);
  border: 1px solid var(--rule-soft);
  border-radius: 3px;
  overflow: hidden;
}
.metric {
  background: var(--paper);
  padding: 24px 22px 22px;
  display: flex;
  flex-direction: column;
  gap: 12px;
  min-height: 220px;
}
.metric .label {
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--ink-3);
}
.metric .value {
  font-size: 38px;
  font-weight: 600;
  letter-spacing: -0.03em;
  line-height: 1;
  color: var(--ink-4);
  font-family: var(--mono);
}
.metric .why {
  font-size: 13px;
  color: var(--ink-2);
  line-height: 1.5;
}
.metric .meta {
  margin-top: auto;
  padding-top: 12px;
  border-top: 1px dashed var(--rule-soft);
  font-family: var(--mono);
  font-size: 11px;
  color: var(--ink-3);
}
.metric .meta b { color: var(--ink); font-weight: 500; }

@media (max-width: 980px) { .perf-grid { grid-template-columns: repeat(2, 1fr); } }
@media (max-width: 560px) { .perf-grid { grid-template-columns: 1fr; } }

.evidence-switcher {
  margin-top: 28px;
  border: 1px solid var(--ink);
  border-radius: 3px;
  background: var(--paper-tint);
  overflow: hidden;
}
.evidence-switcher .bench-table-wrap {
  margin-top: 0;
  border-left: 0;
  border-right: 0;
  border-bottom: 0;
  border-radius: 0;
}
.evidence-caption {
  border-bottom: 1px solid var(--rule-soft);
}
.evidence-tabs {
  display: flex;
  flex-wrap: wrap;
  gap: 0;
  border-bottom: 1px solid var(--rule-soft);
  background: var(--paper-2);
}
.evidence-tab {
  appearance: none;
  border: 0;
  border-right: 1px solid var(--rule-soft);
  background: var(--paper-tint);
  color: var(--ink-2);
  padding: 11px 14px;
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: 0.04em;
  cursor: pointer;
  display: inline-flex;
  gap: 9px;
  align-items: center;
}
.evidence-tab:hover { background: var(--paper-2); color: var(--ink); }
.evidence-tab[aria-selected="true"] { background: var(--ink); color: var(--paper); }
.evidence-tab .idx { color: var(--ink-3); }
.evidence-tab[aria-selected="true"] .idx { color: var(--paper-3); }
.evidence-panel[hidden] { display: none; }
.bench-table .not-run .cell-main,
.bench-table .not-run .cell-note { color: var(--ink-4); }

.method-row {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin: 22px 0 0;
}
.method {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 6px 10px;
  border: 1px solid var(--rule-soft);
  border-radius: 999px;
  font-family: var(--mono);
  font-size: 11px;
  color: var(--ink-2);
  background: var(--paper-tint);
}
.method::before {
  content: "";
  width: 6px; height: 6px; border-radius: 999px; background: var(--brand);
}

.process-note {
  margin-top: 36px;
  padding: 28px 32px;
  border: 1px solid var(--ink);
  border-left: 3px solid var(--brand);
  background: var(--paper-tint);
  display: grid;
  grid-template-columns: 220px 1fr;
  gap: 32px;
  align-items: start;
}
.process-note h3 {
  margin: 0;
  font-size: 22px;
  font-weight: 600;
  letter-spacing: -0.02em;
  line-height: 1.15;
}
.process-note p { margin: 0; font-size: 15px; color: var(--ink-2); }
.process-note p + p { margin-top: 10px; }
@media (max-width: 760px) {
  .process-note { grid-template-columns: 1fr; gap: 14px; padding: 22px; }
}

/* ── comparison spectrum ─────────────────────────────────── */
.spectrum {
  position: relative;
  border: 1px solid var(--ink);
  border-radius: 3px;
  background: var(--paper-tint);
  height: 300px;
  margin: 12px 0 0;
}
/* inner track: horizontal insets keep axis + pins + band aligned to the same % space */
.spectrum-track {
  position: absolute;
  left: 64px;
  right: 64px;
  top: 0;
  bottom: 0;
}
.spectrum-axis {
  position: absolute;
  left: 0;
  right: 0;
  top: 50%;
  height: 2px;
  background: var(--ink);
  transform: translateY(-50%);
}
.spectrum-axis::before, .spectrum-axis::after {
  content: "";
  position: absolute;
  top: -6px;
  width: 0; height: 0;
  border-top: 7px solid transparent;
  border-bottom: 7px solid transparent;
}
.spectrum-axis::before { left: -1px; border-right: 9px solid var(--ink); }
.spectrum-axis::after  { right: -1px; border-left: 9px solid var(--ink); }

.spectrum-end {
  position: absolute;
  top: 22px;
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--ink-3);
  max-width: 190px;
  line-height: 1.3;
  z-index: 1;
}
.spectrum-end.left  { left: 24px; }
.spectrum-end.right { right: 24px; text-align: right; }
.spectrum-end b { color: var(--ink); font-weight: 600; }

/* Conflux range — a tinted vertical band behind the peers */
.conflux-band {
  position: absolute;
  top: 64px;
  bottom: 64px;
  background: color-mix(in srgb, var(--brand) 16%, transparent);
  border-left: 1.5px dashed var(--brand-deep);
  border-right: 1.5px dashed var(--brand-deep);
  border-radius: 4px;
  z-index: 0;
}
.conflux-band-label {
  position: absolute;
  left: 50%;
  top: -2px;
  transform: translate(-50%, -100%);
  font-family: var(--mono);
  font-size: 12px;
  font-weight: 600;
  letter-spacing: 0.06em;
  white-space: nowrap;
  color: var(--brand-deep);
  text-transform: uppercase;
}
.conflux-band-label::after {
  content: "";
  position: absolute;
  left: 50%;
  top: 100%;
  width: 1px;
  height: 10px;
  background: var(--brand-deep);
}

/* peer pins on the axis, label + stem above (default) or below */
.peer {
  position: absolute;
  top: 50%;
  transform: translate(-50%, 0);
  display: flex;
  flex-direction: column-reverse;   /* pin (first child) at bottom, on axis; label on top */
  align-items: center;
  gap: 6px;
  cursor: pointer;
  background: transparent;
  border: 0;
  padding: 0;
  z-index: 2;
}
.peer { transform: translate(-50%, -100%); }   /* anchor pin bottom to axis */
.peer .pin {
  width: 14px; height: 14px;
  border-radius: 999px;
  background: var(--paper);
  border: 2px solid var(--ink);
  transition: background 120ms, transform 120ms;
  position: relative;
  top: 7px;                          /* straddle the axis line */
}
.peer:hover .pin,
.peer:focus-visible .pin { background: var(--brand); transform: scale(1.18); }
.peer .label {
  font-family: var(--mono);
  font-size: 12px;
  font-weight: 500;
  letter-spacing: 0.04em;
  color: var(--ink);
  white-space: nowrap;
}
.peer .stem {
  width: 1px; height: 20px; background: var(--ink-4);
}
.peer.below {
  transform: translate(-50%, 0);     /* anchor pin top to axis */
  flex-direction: column;            /* pin first (top, on axis), label below */
}
.peer.below .pin { top: -7px; }

.peer-tip {
  position: absolute;
  bottom: calc(100% + 12px);
  left: 50%;
  transform: translateX(-50%) translateY(4px);
  width: 270px;
  padding: 14px 16px;
  background: var(--ink);
  color: var(--paper);
  border-radius: 4px;
  font-family: var(--sans);
  font-size: 13px;
  line-height: 1.45;
  text-align: left;
  white-space: normal;
  opacity: 0;
  pointer-events: none;
  transition: opacity 140ms, transform 140ms;
  z-index: 6;
  box-shadow: 0 12px 28px -12px rgba(20, 19, 15, 0.4);
}
.peer-tip::after {
  content: "";
  position: absolute;
  top: 100%; left: 50%;
  transform: translateX(-50%);
  border: 6px solid transparent;
  border-top-color: var(--ink);
}
.peer-tip h4 {
  margin: 0 0 6px;
  font-size: 13px;
  font-weight: 600;
  color: var(--brand);
  font-family: var(--mono);
  letter-spacing: 0.06em;
  text-transform: uppercase;
}
.peer-tip p { margin: 0; }
.peer:hover .peer-tip,
.peer:focus-within .peer-tip {
  opacity: 1;
  transform: translateX(-50%) translateY(0);
}
.peer.below .peer-tip {
  bottom: auto;
  top: calc(100% + 12px);
}
.peer.below .peer-tip::after {
  top: auto; bottom: 100%;
  border-top-color: transparent;
  border-bottom-color: var(--ink);
}

@media (max-width: 760px) {
  .spectrum { display: none; }
}
.spectrum-mobile {
  display: none;
  margin-top: 16px;
  border: 1px solid var(--ink);
  border-radius: 3px;
  overflow: hidden;
}
.spectrum-mobile .row {
  padding: 16px;
  border-bottom: 1px solid var(--rule-soft);
  background: var(--paper);
}
.spectrum-mobile .row:last-child { border-bottom: 0; }
.spectrum-mobile .row.conflux { background: var(--paper-2); border-left: 3px solid var(--brand); }
.spectrum-mobile h4 { margin: 0 0 6px; font-size: 15px; }
.spectrum-mobile p  { margin: 0; font-size: 13px; color: var(--ink-2); }
@media (max-width: 760px) { .spectrum-mobile { display: block; } }

.philosophy-cards {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1px;
  margin-top: 80px;
  background: var(--rule-soft);
  border: 1px solid var(--rule-soft);
  border-radius: 3px;
  overflow: hidden;
}
.phil-card {
  background: var(--paper);
  padding: 22px;
}
.phil-card .head {
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--ink-3);
  margin-bottom: 12px;
}
.phil-card .name {
  font-size: 16px;
  font-weight: 600;
  margin-bottom: 8px;
}
.phil-card .body {
  font-size: 13px;
  color: var(--ink-2);
  line-height: 1.5;
}
.phil-card.conflux { background: var(--paper-2); }
.phil-card.conflux .name { color: var(--brand-deep); }

@media (max-width: 860px) { .philosophy-cards { grid-template-columns: 1fr; } }

/* ── safety / docs ────────────────────────────────────────── */
.safety {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 56px;
}
@media (max-width: 980px) { .safety { grid-template-columns: 1fr; gap: 32px; } }
.safety h3 {
  margin: 0 0 14px;
  font-size: 22px;
  font-weight: 600;
  letter-spacing: -0.02em;
}
.safety ul.checks {
  list-style: none;
  padding: 0;
  margin: 0;
  display: grid;
  gap: 10px;
}
.safety .checks li {
  position: relative;
  padding-left: 30px;
  font-size: 14px;
  color: var(--ink-2);
  line-height: 1.5;
}
.safety .checks li::before {
  content: "✓";
  position: absolute;
  left: 0;
  top: 1px;
  color: var(--shipped);
  font-family: var(--mono);
  font-weight: 700;
}
.safety .checks li b { color: var(--ink); font-weight: 600; }

.docs-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1px;
  background: var(--rule-soft);
  border: 1px solid var(--rule-soft);
  border-radius: 3px;
  overflow: hidden;
}
.doc {
  background: var(--paper);
  padding: 16px 16px 18px;
  display: flex;
  flex-direction: column;
  gap: 6px;
  text-decoration: none;
  color: var(--ink);
  min-height: 110px;
  transition: background 120ms;
}
.doc:hover { background: var(--paper-2); }
.doc .num {
  font-family: var(--mono);
  font-size: 10px;
  letter-spacing: 0.1em;
  color: var(--ink-3);
}
.doc .title { font-size: 14px; font-weight: 600; letter-spacing: -0.01em; }
.doc .desc  { font-size: 12px; color: var(--ink-2); margin-top: auto; line-height: 1.45; }
.doc .desc.pending { color: var(--ink-3); font-family: var(--mono); }

@media (max-width: 760px) { .docs-grid { grid-template-columns: 1fr 1fr; } }
@media (max-width: 480px) { .docs-grid { grid-template-columns: 1fr; } }

/* ── roadmap columns ──────────────────────────────────────── */
.road {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}
@media (max-width: 860px) { .road { grid-template-columns: 1fr; } }
.road-col {
  border: 1px solid var(--ink);
  border-radius: 3px;
  background: var(--paper-tint);
  display: flex;
  flex-direction: column;
}
.road-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 16px 20px;
  border-bottom: 1px solid var(--ink);
  background: var(--paper-2);
}
.road-head h3 {
  margin: 0;
  font-size: 16px;
  font-weight: 600;
  letter-spacing: -0.01em;
}
.road-head .chip {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-family: var(--mono);
  font-size: 10px;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  padding: 3px 8px;
  border-radius: 999px;
  border: 1px solid currentColor;
}
.road-head .chip::before {
  content: "";
  width: 6px; height: 6px; border-radius: 99px; background: currentColor;
}
.road-col.shipped  .chip { color: var(--shipped); background: var(--shipped-bg); }
.road-col.progress .chip { color: var(--planned); background: var(--planned-bg); }
.road-col.research .chip { color: var(--research); background: var(--research-bg); }

.road-list {
  padding: 14px 16px 18px;
  display: grid;
  gap: 12px;
}
.road-item {
  display: grid;
  gap: 4px;
  padding: 10px 0;
  border-bottom: 1px dashed var(--rule-soft);
}
.road-item:last-child { border-bottom: 0; }
.road-item .name {
  font-size: 14px;
  font-weight: 600;
  letter-spacing: -0.01em;
}
.road-item .desc {
  font-size: 12px;
  color: var(--ink-2);
  line-height: 1.45;
}
.road-foot {
  padding: 12px 16px;
  border-top: 1px solid var(--rule-soft);
  font-family: var(--mono);
  font-size: 11px;
  color: var(--ink-3);
}
.road-foot b { color: var(--ink); font-weight: 500; }

/* ── final CTA ────────────────────────────────────────────── */
.final {
  margin-top: 24px;
  padding: 64px 56px 72px;
  border: 1px solid var(--ink);
  border-radius: 4px;
  background: var(--ink);
  color: var(--paper);
  position: relative;
  overflow: hidden;
}
.final::before {
  content: "";
  position: absolute;
  inset: 0;
  background-image: linear-gradient(135deg, transparent 60%, rgba(201, 162, 90, 0.08));
  pointer-events: none;
}
.final h2 {
  margin: 8px 0 16px;
  font-size: clamp(36px, 5vw, 60px);
  font-weight: 600;
  letter-spacing: -0.025em;
  line-height: 1;
  color: var(--paper);
  max-width: 18ch;
}
.final p {
  font-size: 17px;
  color: rgba(244, 241, 234, 0.78);
  max-width: 60ch;
  margin: 0 0 28px;
}
.final .eyebrow { color: var(--brand); }
.final .cta-row .btn {
  background: transparent;
  border-color: rgba(244, 241, 234, 0.25);
  color: var(--paper);
}
.final .cta-row .btn:hover { background: rgba(244, 241, 234, 0.08); border-color: var(--paper); }
.final .cta-row .btn-dark {
  background: var(--brand);
  color: var(--ink);
  border-color: var(--brand);
}
.final .cta-row .btn-dark:hover { background: var(--paper); border-color: var(--paper); }
@media (max-width: 760px) { .final { padding: 40px 28px 48px; } }

/* ── footer ───────────────────────────────────────────────── */
.footer {
  margin-top: 64px;
  padding: 36px 0 64px;
  border-top: 1px solid var(--rule-soft);
  font-family: var(--mono);
  font-size: 12px;
  color: var(--ink-3);
}
.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: 32px;
}
.footer-grid h4 {
  font-size: 11px;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--ink-2);
  margin: 0 0 12px;
  font-weight: 600;
}
.footer-grid a {
  display: block;
  text-decoration: none;
  color: var(--ink-2);
  padding: 4px 0;
}
.footer-grid a:hover { color: var(--ink); }
.footer-bottom {
  margin-top: 32px;
  padding-top: 18px;
  border-top: 1px dashed var(--rule-soft);
  display: flex;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 12px;
}
@media (max-width: 760px) {
  .footer-grid { grid-template-columns: 1fr 1fr; }
}

/* ── utility ──────────────────────────────────────────────── */
.scroll-hint {
  position: absolute;
  right: var(--gutter);
  top: 22px;
  font-family: var(--mono);
  font-size: 11px;
  color: var(--ink-3);
  letter-spacing: 0.1em;
}

.callout-link {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-family: var(--mono);
  font-size: 12px;
  color: var(--ink);
  text-decoration: none;
  border-bottom: 1px solid var(--ink);
  padding-bottom: 2px;
}
.callout-link:hover { color: var(--brand-deep); border-color: var(--brand-deep); }

/* ── brand mark follows --brand (tweakable) ───────────────── */
.m-stroke { stroke: var(--brand); }
.m-fill   { fill: var(--brand); }

/* ── density variants (tweakable) ─────────────────────────── */
html[data-density="compact"]  .section-body { padding: 24px 0 60px; }
html[data-density="compact"]  .hero         { padding: 44px 0 20px; }
html[data-density="spacious"] .section-body { padding: 48px 0 132px; }
html[data-density="spacious"] .hero         { padding: 88px 0 40px; }

/* ── tweaks panel ─────────────────────────────────────────── */
.tweaks-panel {
  position: fixed;
  right: 20px;
  bottom: 20px;
  z-index: 200;
  width: 300px;
  max-height: calc(100vh - 40px);
  overflow-y: auto;
  background: var(--paper-tint);
  border: 1px solid var(--ink);
  border-radius: 6px;
  box-shadow: 0 18px 44px -18px rgba(20, 19, 15, 0.5);
  font-family: var(--sans);
  color: var(--ink);
}
.tweaks-panel[hidden] { display: none; }
.tweaks-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 12px 14px;
  border-bottom: 1px solid var(--ink);
  background: var(--ink);
  color: var(--paper);
  cursor: grab;
  border-radius: 6px 6px 0 0;
}
.tweaks-head.dragging { cursor: grabbing; }
.tweaks-head .t {
  font-family: var(--mono);
  font-size: 12px;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}
.tweaks-head button {
  appearance: none;
  background: transparent;
  border: 0;
  color: var(--paper);
  font-size: 16px;
  line-height: 1;
  cursor: pointer;
  padding: 2px 4px;
  opacity: 0.7;
}
.tweaks-head button:hover { opacity: 1; }
.tw-section {
  padding: 14px;
  border-bottom: 1px dashed var(--rule-soft);
}
.tw-section:last-child { border-bottom: 0; }
.tw-label {
  font-family: var(--mono);
  font-size: 10px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--ink-3);
  margin-bottom: 10px;
}
.tw-swatches { display: flex; gap: 8px; }
.tw-swatch {
  width: 30px; height: 30px;
  border-radius: 999px;
  border: 2px solid var(--rule-soft);
  cursor: pointer;
  padding: 0;
  transition: transform 100ms;
}
.tw-swatch:hover { transform: scale(1.08); }
.tw-swatch[aria-pressed="true"] { border-color: var(--ink); box-shadow: 0 0 0 2px var(--paper-tint), 0 0 0 3px var(--ink); }
.tw-seg {
  display: grid;
  grid-auto-flow: column;
  grid-auto-columns: 1fr;
  border: 1px solid var(--ink);
  border-radius: 3px;
  overflow: hidden;
}
.tw-seg button {
  appearance: none;
  border: 0;
  border-right: 1px solid var(--rule-soft);
  background: var(--paper);
  padding: 8px 6px;
  font-family: var(--mono);
  font-size: 11px;
  color: var(--ink-2);
  cursor: pointer;
}
.tw-seg button:last-child { border-right: 0; }
.tw-seg button[aria-pressed="true"] { background: var(--ink); color: var(--paper); }
.tw-input {
  width: 100%;
  border: 1px solid var(--rule-soft);
  border-radius: 3px;
  padding: 8px 10px;
  font-family: var(--sans);
  font-size: 13px;
  color: var(--ink);
  background: var(--paper);
  resize: vertical;
  line-height: 1.4;
}
.tw-input:focus { outline: none; border-color: var(--ink); }
.tw-hint {
  margin-top: 8px;
  font-family: var(--mono);
  font-size: 10px;
  color: var(--ink-4);
  line-height: 1.4;
}

/* ════════════════════════════════════════════════════════════
   DARK THEME
   - auto: follows the OS when no explicit choice is stored
   - manual: html[data-theme="dark"] / html[data-theme="light"]
   Only design tokens are overridden; every component reads them.
   ════════════════════════════════════════════════════════════ */
:root[data-theme="dark"] {
  --paper:        #13120e;
  --paper-2:      #1c1a15;
  --paper-3:      #26231d;
  --paper-tint:   #191712;
  --ink:          #ece7da;
  --ink-2:        #c4bda9;
  --ink-3:        #928a75;
  --ink-4:        #615a4a;
  --ink-5:        #39352e;
  --rule:         #ece7da;
  --rule-soft:    #39352e;
  --shipped:      #6fae78;
  --shipped-bg:   #17251a;
  --planned:      #d39a55;
  --planned-bg:   #2a2113;
  --research:     #a99e88;
  --research-bg:  #222019;
}
@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) {
    --paper:        #13120e;
    --paper-2:      #1c1a15;
    --paper-3:      #26231d;
    --paper-tint:   #191712;
    --ink:          #ece7da;
    --ink-2:        #c4bda9;
    --ink-3:        #928a75;
    --ink-4:        #615a4a;
    --ink-5:        #39352e;
    --rule:         #ece7da;
    --rule-soft:    #39352e;
    --shipped:      #6fae78;
    --shipped-bg:   #17251a;
    --planned:      #d39a55;
    --planned-bg:   #2a2113;
    --research:     #a99e88;
    --research-bg:  #222019;
  }
}

/* theme toggle button in the nav */
.theme-toggle {
  appearance: none;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 34px; height: 34px;
  border: 1px solid var(--rule-soft);
  border-radius: 2px;
  background: transparent;
  color: var(--ink-2);
  cursor: pointer;
  margin-right: 14px;
  transition: border-color 120ms, color 120ms;
}
.theme-toggle:hover { border-color: var(--ink); color: var(--ink); }
.theme-toggle svg { width: 17px; height: 17px; display: block; }
.theme-toggle .icon-sun  { display: none; }
.theme-toggle .icon-moon { display: block; }
:root[data-theme="dark"] .theme-toggle .icon-sun  { display: block; }
:root[data-theme="dark"] .theme-toggle .icon-moon { display: none; }
@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; }
}

/* keep the final CTA a dark band in BOTH themes (theme-independent) */
.final { background: #13120e; border-color: rgba(236, 231, 218, 0.18); }
.final h2 { color: #f4f1ea; }
.final .cta-row .btn { color: #f4f1ea; }
.final .cta-row .btn-dark { color: #14130f; }

/* nav has a hardcoded translucent light bg — flip it for dark */
:root[data-theme="dark"] .nav { background: rgba(19, 18, 14, 0.85); }
@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) .nav { background: rgba(19, 18, 14, 0.85); }
}


/* ── real pre-release content additions ───────────────────── */
pre.code {
  margin: 0;
  padding: 0;
  overflow-x: auto;
  font-family: var(--mono);
  font-size: 12px;
  line-height: 1.55;
  color: var(--ink);
  background: transparent;
  white-space: pre-wrap;
}
pre.code code {
  display: block;
  padding: 0;
  background: transparent;
  border-radius: 0;
  white-space: pre-wrap;
  font-size: inherit;
}
pre.code .code-line {
  display: block;
  min-height: 1.55em;
  white-space: pre-wrap;
}
pre.code .code-line:empty::before {
  content: "\00a0";
}
.code-caption {
  margin-top: 14px;
  padding-top: 12px;
  border-top: 1px dashed var(--rule-soft);
  font-family: var(--mono);
  font-size: 11px;
  color: var(--ink-3);
  line-height: 1.5;
}
.metric .value.actual {
  color: var(--ink);
  font-variant-numeric: tabular-nums;
}
.metric .value .unit {
  font-size: 0.32em;
  letter-spacing: 0;
  color: var(--ink-3);
  font-weight: 500;
}
.bench-table-wrap {
  margin-top: 26px;
  border: 1px solid var(--ink);
  border-radius: 3px;
  overflow-x: auto;
  background: var(--paper-tint);
}
.bench-table {
  width: 100%;
  border-collapse: separate;
  border-spacing: 0;
  font-family: var(--mono);
  font-size: 11px;
  min-width: 1280px;
}
.bench-table th,
.bench-table td {
  padding: 11px 12px;
  border-right: 1px solid var(--rule-soft);
  border-bottom: 1px solid var(--rule-soft);
  text-align: left;
  white-space: nowrap;
  background: var(--paper-tint);
  vertical-align: top;
}
.bench-table th {
  background: var(--paper-2);
  color: var(--ink-2);
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}
.bench-table th:last-child,
.bench-table td:last-child { border-right: 0; }
.bench-table tr:last-child td { border-bottom: 0; }
.bench-table tbody tr:nth-child(even) td { background: var(--paper); }
.bench-table td:first-child { color: var(--ink); font-weight: 600; }
.bench-table td:nth-child(2),
.bench-table td:nth-child(3),
.bench-table td:nth-child(4),
.bench-table td:nth-child(5),
.bench-table td:nth-child(6),
.bench-table td:nth-child(7),
.bench-table td:nth-child(9) { text-align: right; }
.bench-table th:nth-child(2),
.bench-table th:nth-child(3),
.bench-table th:nth-child(4),
.bench-table th:nth-child(5),
.bench-table th:nth-child(6),
.bench-table th:nth-child(7),
.bench-table th:nth-child(9) { text-align: right; }
.api-panel { min-height: 0; }
.panel-body pre.code { max-height: 520px; }
.hero .panel-body pre.code { max-height: 460px; }
@media (max-width: 720px) {
  pre.code { font-size: 11px; }
  .panel-body { padding: 14px 16px 18px; }
}


/* ── evidence table v2: winners + relative losers ─────────── */
.bench-table-wrap {
  margin-top: 28px;
}
.bench-caption {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 18px;
  padding: 11px 12px;
  border-bottom: 1px solid var(--rule-soft);
  background: var(--paper-2);
  font-family: var(--mono);
}
.bench-caption span {
  color: var(--ink);
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}
.bench-caption b {
  color: var(--ink-3);
  font-size: 11px;
  font-weight: 500;
}
.comparison-table {
  min-width: 1120px;
}
.json-comparison {
  min-width: 1040px;
}
.bench-table .workload {
  color: var(--ink);
  font-weight: 700;
  text-align: left;
}
.bench-table .scope-cell {
  color: var(--ink-3);
  font-size: 10px;
  text-align: left;
  white-space: normal;
  min-width: 150px;
}
.bench-table .bench-cell {
  text-align: right;
  min-width: 118px;
}
.bench-table .cell-main,
.bench-table .cell-note {
  display: block;
}
.bench-table .cell-main {
  color: var(--ink);
  font-size: 12px;
  font-weight: 700;
  letter-spacing: -0.01em;
}
.bench-table .cell-note {
  margin-top: 2px;
  color: var(--ink-3);
  font-size: 10px;
  font-weight: 500;
  letter-spacing: 0;
  text-transform: none;
}
.bench-table .is-winner,
.bench-table tbody tr:nth-child(even) td.is-winner {
  background: var(--shipped-bg);
  box-shadow: inset 0 0 0 1px color-mix(in srgb, var(--shipped) 55%, transparent);
}
.bench-table .is-winner .cell-main {
  color: var(--shipped);
}
.bench-table .winner-note {
  color: var(--shipped);
  font-weight: 700;
}
.bench-table .delta-neg {
  color: var(--planned);
}
.bench-table .is-loser {
  color: var(--ink-2);
}
.bench-table th:nth-child(n+2),
.bench-table td:nth-child(n+2) {
  text-align: right;
}
.bench-table th:last-child,
.bench-table td:last-child {
  text-align: left;
}

/* readable inline code while hovering architecture rows.
   In light theme the row hover is dark; in dark theme the row hover flips light. */
.layer:hover code {
  background: rgba(244, 241, 234, 0.16);
  color: #fff3cf;
  box-shadow: inset 0 0 0 1px rgba(244, 241, 234, 0.20);
}
:root[data-theme="dark"] .layer:hover code {
  background: rgba(19, 18, 14, 0.12);
  color: #13120e;
  box-shadow: inset 0 0 0 1px rgba(19, 18, 14, 0.28);
}
@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) .layer:hover code {
    background: rgba(19, 18, 14, 0.12);
    color: #13120e;
    box-shadow: inset 0 0 0 1px rgba(19, 18, 14, 0.28);
  }
}
.layer.kernel:hover code {
  background: rgba(244, 241, 234, 0.18);
  color: #fff3cf;
  box-shadow: inset 0 0 0 1px rgba(244, 241, 234, 0.26);
}

/* lightweight static C++ highlighting */
pre.code .tok-kw { color: var(--brand-deep); font-weight: 700; }
pre.code .tok-type { color: var(--shipped); font-weight: 600; }
pre.code .tok-call { color: var(--ink); font-weight: 600; }
pre.code .tok-str { color: var(--planned); }
pre.code .tok-num { color: var(--brand-deep); }
pre.code .tok-comment { color: var(--ink-3); font-style: italic; }
pre.code .tok-preproc { color: var(--research); font-weight: 600; }
:root[data-theme="dark"] pre.code .tok-kw { color: #d8b363; }
:root[data-theme="dark"] pre.code .tok-call { color: #f2ead7; }
@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) pre.code .tok-kw { color: #d8b363; }
  :root:not([data-theme="light"]) pre.code .tok-call { color: #f2ead7; }
}
@media (max-width: 720px) {
  .bench-caption { display: block; }
  .bench-caption b { display: block; margin-top: 4px; }
}