/* ============================================================
   BitID — bitid.org teaser site
   Tokens, base, layout, components
   ============================================================ */

:root {
  /* Palette (verbatim from spec) */
  --bg-base: #0A0A0B;
  --bg-elevated: #141416;
  --bg-inverse: #FAFAF7;
  --fg-primary-dark: #FAFAF7;
  --fg-primary-light: #0A0A0B;
  --fg-muted: #A1A1AA;
  --fg-muted-light: #52525B;
  --accent-anchor: #E8872C;   /* Bitcoin orange — single-use */
  --accent-signal: #CFFF50;   /* electric lime — single-use */
  --border-subtle: #27272A;
  --border-subtle-light: #E4E4E7;

  /* Type */
  --font-display: "Geist", "Inter", -apple-system, BlinkMacSystemFont, system-ui, sans-serif;
  --font-body: "Geist", "Inter", -apple-system, BlinkMacSystemFont, system-ui, sans-serif;
  --font-mono: "JetBrains Mono", ui-monospace, "SF Mono", Menlo, Consolas, monospace;
  --font-serif: "Instrument Serif", "GT Alpina", "Tiempos", Georgia, serif;

  /* Scale */
  --content-max: 1200px;
  --content-narrow: 720px;
  --pad-x: clamp(20px, 4vw, 48px);

  color-scheme: dark;
}

* { box-sizing: border-box; }
html, body { margin: 0; padding: 0; }

html {
  background: var(--bg-base);
  color: var(--fg-primary-dark);
  font-family: var(--font-body);
  font-size: 17px;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

@media (max-width: 640px) {
  html { font-size: 16px; }
}

body {
  min-height: 100vh;
  overflow-x: hidden;
}

/* Light mode (only on /whitepaper) */
body.theme-light {
  background: var(--bg-inverse);
  color: var(--fg-primary-light);
  color-scheme: light;
}

a { color: inherit; text-decoration: none; }
a:focus-visible, button:focus-visible {
  outline: 2px solid var(--fg-primary-dark);
  outline-offset: 2px;
  border-radius: 2px;
}
body.theme-light a:focus-visible, body.theme-light button:focus-visible {
  outline-color: var(--fg-primary-light);
}

img, svg { display: block; max-width: 100%; }

/* ============================================================
   Top nav
   ============================================================ */

.nav {
  position: sticky;
  top: 0;
  z-index: 50;
  background: color-mix(in oklab, var(--bg-base) 80%, transparent);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border-bottom: 1px solid var(--border-subtle);
}
body.theme-light .nav {
  background: color-mix(in oklab, var(--bg-inverse) 80%, transparent);
  border-bottom-color: var(--border-subtle-light);
}

.nav-inner {
  max-width: var(--content-max);
  margin: 0 auto;
  padding: 16px var(--pad-x);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
}

.brand {
  display: inline-flex;
  align-items: baseline;
  gap: 10px;
  font-family: var(--font-display);
  font-weight: 500;
  font-size: 18px;
  letter-spacing: -0.01em;
  color: var(--fg-primary-dark);
  text-decoration: none;
}
body.theme-light .brand { color: var(--fg-primary-light); }

/* The glyph: aligned to the wordmark BASELINE (not center).
   We translate it down so its visual baseline (cap-bottom = 850/1000 of height)
   sits on the text baseline. The italic shear is the visual signature. */
.brand-glyph {
  display: inline-block;
  position: relative;
  /* shift down by overshoot-below proportion (15.4%) so baseline aligns */
  transform: translateY(15%);
  flex-shrink: 0;
}

.brand-word {
  display: inline-flex;
  align-items: baseline;
  letter-spacing: -0.01em;
  /* gap between glyph and wordmark = 1× cap height of glyph (handled by parent gap) */
}
.brand-word .bw-bit { font-weight: 500; }
.brand-word .bw-id  { font-weight: 600; }

/* Legacy .brand-mark — preserved as a tiny tier-card glyph but no longer the brand mark. */
.brand-mark {
  width: 22px; height: 22px;
  display: grid;
  place-items: center;
  border-radius: 6px;
  background: var(--fg-primary-dark);
  color: var(--bg-base);
  font-family: var(--font-mono);
  font-weight: 700;
  font-size: 12px;
  letter-spacing: -0.04em;
}
body.theme-light .brand-mark { background: var(--fg-primary-light); color: var(--bg-inverse); }

/* IDLockup helper class — used outside nav/footer */
.id-lockup {
  display: inline-flex;
  align-items: baseline;
  gap: 10px;
  font-family: var(--font-display);
  letter-spacing: -0.01em;
}
.id-lockup .id-wordmark .idw-bit { font-weight: 500; }
.id-lockup .id-wordmark .idw-id  { font-weight: 600; }

.nav-links {
  display: flex; gap: 28px;
  font-size: 14px;
  color: var(--fg-muted);
}
.nav-links a { transition: color 80ms ease-out; }
.nav-links a:hover { color: var(--fg-primary-dark); }
body.theme-light .nav-links a:hover { color: var(--fg-primary-light); }
.nav-links a.is-active { color: var(--fg-primary-dark); }
body.theme-light .nav-links a.is-active { color: var(--fg-primary-light); }

.nav-cta {
  display: inline-flex;
  align-items: center;
  padding: 8px 14px;
  border-radius: 999px;
  background: var(--fg-primary-dark);
  color: var(--bg-base);
  font-size: 13px;
  font-weight: 500;
  white-space: nowrap;
  transition: opacity 80ms ease-out;
}
.nav-cta:hover { opacity: 0.86; }
body.theme-light .nav-cta { background: var(--fg-primary-light); color: var(--bg-inverse); }

@media (max-width: 820px) {
  .nav-links { display: none; }
}

/* ============================================================
   Layout helpers
   ============================================================ */

main { display: block; }

.section {
  padding: clamp(64px, 10vw, 128px) var(--pad-x);
  position: relative;
}
.section--tight { padding: clamp(48px, 7vw, 80px) var(--pad-x); }
.section--hero { padding-top: clamp(64px, 12vw, 140px); padding-bottom: clamp(48px, 8vw, 96px); }

.container {
  max-width: var(--content-max);
  margin: 0 auto;
}
.container--narrow { max-width: var(--content-narrow); }

.eyebrow {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--fg-muted);
}

h1, h2, h3, h4 { font-family: var(--font-display); font-weight: 500; letter-spacing: -0.025em; margin: 0; }
h1 { font-size: clamp(42px, 6.4vw, 76px); line-height: 1.02; letter-spacing: -0.04em; }
h2 { font-size: clamp(30px, 4vw, 48px); line-height: 1.08; letter-spacing: -0.03em; }
h3 { font-size: clamp(20px, 2.2vw, 26px); line-height: 1.2; letter-spacing: -0.02em; }
p { margin: 0 0 1em; }
.lead { font-size: clamp(18px, 1.8vw, 22px); line-height: 1.45; color: var(--fg-muted); max-width: 640px; }

.divider {
  height: 1px; background: var(--border-subtle); border: 0; margin: 0;
}
body.theme-light .divider { background: var(--border-subtle-light); }

/* ============================================================
   Buttons
   ============================================================ */

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 14px 22px;
  border-radius: 999px;
  font-size: 15px;
  font-weight: 500;
  border: 1px solid transparent;
  cursor: pointer;
  transition: opacity 80ms ease-out, background 80ms ease-out;
  text-decoration: none;
  white-space: nowrap;
  font-family: inherit;
}
.btn--primary { background: var(--fg-primary-dark); color: var(--bg-base); }
.btn--primary:hover { opacity: 0.86; }
.btn--ghost {
  background: transparent;
  color: var(--fg-primary-dark);
  border-color: var(--border-subtle);
}
.btn--ghost:hover { border-color: var(--fg-muted); }

body.theme-light .btn--primary { background: var(--fg-primary-light); color: var(--bg-inverse); }
body.theme-light .btn--ghost { color: var(--fg-primary-light); border-color: var(--border-subtle-light); }

.btn--sm { padding: 10px 16px; font-size: 14px; }

/* ============================================================
   Hero
   ============================================================ */

.hero {
  min-height: calc(100vh - 64px);
  display: grid;
  place-items: center;
  text-align: center;
  padding: clamp(80px, 10vw, 140px) var(--pad-x) clamp(48px, 6vw, 96px);
  position: relative;
}

.hero-grid-bg {
  position: absolute; inset: 0;
  background-image:
    linear-gradient(to right, var(--border-subtle) 1px, transparent 1px),
    linear-gradient(to bottom, var(--border-subtle) 1px, transparent 1px);
  background-size: 64px 64px;
  mask-image: radial-gradient(ellipse 80% 60% at 50% 40%, black 30%, transparent 75%);
  -webkit-mask-image: radial-gradient(ellipse 80% 60% at 50% 40%, black 30%, transparent 75%);
  opacity: 0.4;
  pointer-events: none;
}

.hero-inner { position: relative; max-width: 880px; }

.hero h1 { margin-bottom: 24px; }
.hero .lead { font-size: clamp(17px, 1.7vw, 21px); color: var(--fg-muted); margin: 0 auto 36px; max-width: 640px; }
.hero-ctas { display: flex; gap: 12px; justify-content: center; flex-wrap: wrap; margin-bottom: 48px; }
.hero-creds {
  font-family: var(--font-mono);
  font-size: 13px;
  color: var(--fg-muted);
  display: inline-flex;
  flex-wrap: wrap;
  gap: 14px;
  justify-content: center;
}
.hero-creds .sep { opacity: 0.5; }

/* ============================================================
   Credential card (3D, CSS only)
   ============================================================ */

.cred-stage {
  perspective: 1400px;
  margin: 56px auto 0;
  width: min(360px, 80vw);
  aspect-ratio: 1.586 / 1;
  position: relative;
}
.cred-card {
  position: absolute; inset: 0;
  border-radius: 22px;
  background:
    radial-gradient(120% 80% at 30% 20%, rgba(255,255,255,0.08), transparent 60%),
    linear-gradient(135deg, #18181B 0%, #0F0F11 100%);
  border: 1px solid rgba(255,255,255,0.08);
  box-shadow:
    0 30px 60px -20px rgba(0,0,0,0.6),
    0 0 0 1px rgba(255,255,255,0.04) inset,
    0 80px 120px -40px rgba(0,0,0,0.8);
  padding: 22px;
  transform-style: preserve-3d;
  animation: cred-rotate 18s cubic-bezier(.4,0,.2,1) infinite;
  display: grid;
  grid-template-rows: auto 1fr auto;
  gap: 12px;
  color: #FAFAF7;
}
.cred-card::after {
  /* glossy sweep */
  content: "";
  position: absolute; inset: 0;
  border-radius: inherit;
  background: linear-gradient(105deg, transparent 30%, rgba(255,255,255,0.06) 50%, transparent 70%);
  pointer-events: none;
}
@keyframes cred-rotate {
  0%   { transform: rotateY(-14deg) rotateX(6deg); }
  50%  { transform: rotateY(14deg) rotateX(-2deg); }
  100% { transform: rotateY(-14deg) rotateX(6deg); }
}

.cred-head {
  display: flex; align-items: center; justify-content: space-between;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--fg-muted);
}
.cred-head .anchor-mark {
  display: inline-flex; align-items: center; gap: 6px;
  color: var(--accent-anchor);
}
.cred-head .anchor-mark svg { width: 14px; height: 14px; }

.cred-tier {
  font-family: var(--font-display);
  font-size: 28px;
  font-weight: 500;
  letter-spacing: -0.02em;
  margin: 6px 0 0;
}
.cred-tier-label { font-family: var(--font-mono); font-size: 11px; letter-spacing: 0.1em; text-transform: uppercase; color: var(--fg-muted); }

.cred-rows {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 10px 18px;
  font-family: var(--font-mono);
  font-size: 11px;
  align-self: end;
}
.cred-rows dt { color: var(--fg-muted); letter-spacing: 0.08em; text-transform: uppercase; margin: 0; }
.cred-rows dd { color: #FAFAF7; margin: 2px 0 0; letter-spacing: 0.02em; }

.cred-foot {
  display: flex; align-items: center; justify-content: space-between;
}
.cred-did {
  font-family: var(--font-mono);
  font-size: 10px;
  color: var(--fg-muted);
  letter-spacing: 0.04em;
}
.cred-check {
  display: inline-flex; align-items: center; gap: 8px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--accent-signal);
}
.cred-check .dot {
  width: 10px; height: 10px;
  border-radius: 999px;
  background: var(--accent-signal);
  box-shadow: 0 0 0 0 var(--accent-signal);
  animation: check-pulse 6s ease-out infinite;
}
@keyframes check-pulse {
  0%, 8% { box-shadow: 0 0 0 0 rgba(207,255,80,0.6); transform: scale(1); }
  4%     { box-shadow: 0 0 0 14px rgba(207,255,80,0); transform: scale(1.15); }
  9%, 100% { box-shadow: 0 0 0 0 rgba(207,255,80,0); transform: scale(1); }
}

@media (prefers-reduced-motion: reduce) {
  .cred-card { animation: none; transform: rotateY(-8deg) rotateX(4deg); }
  .cred-check .dot { animation: none; }
}

/* ============================================================
   Card family (hero) — 4 tier cards fanned in 3D
   ============================================================ */

.card-family {
  position: relative;
  width: min(620px, 92vw);
  height: clamp(280px, 38vw, 380px);
  margin: 56px auto 0;
  perspective: 1400px;
  transform-style: preserve-3d;
}
.card-family .tier-card {
  position: absolute;
  top: 50%; left: 50%;
  width: clamp(220px, 28vw, 300px);
  aspect-ratio: 16 / 10;
  border-radius: 16px;
  border: 1px solid rgba(255,255,255,0.08);
  box-shadow:
    inset 0 0 0 1px rgba(255,255,255,0.04),
    0 24px 80px rgba(0,0,0,0.6);
  padding: 18px;
  display: grid;
  grid-template-rows: auto 1fr auto;
  font-family: var(--font-mono);
  color: #FAFAF7;
  transform-style: preserve-3d;
  will-change: transform;
}
.card-family .tier-card::after {
  content: "";
  position: absolute; inset: 0;
  border-radius: inherit;
  background: linear-gradient(105deg, transparent 30%, rgba(255,255,255,0.06) 50%, transparent 70%);
  pointer-events: none;
}
.card-family .tier-card.t-verified  { background: #1A1A1C; }
.card-family .tier-card.t-trusted   { background: #E8872C; color: #0A0A0B; }
.card-family .tier-card.t-anchored  { background: #CFFF50; color: #0A0A0B; }
.card-family .tier-card.t-sovereign { background: #FAFAF7; color: #0A0A0B; border-color: rgba(0,0,0,0.08); }

/* fanned positions */
.card-family .tier-card.pos-1 { transform: translate(-50%, -50%) translateX(-180px) translateY(8px) rotateY(-12deg) rotateX(10deg); z-index: 1; }
.card-family .tier-card.pos-2 { transform: translate(-50%, -50%) translateX(-60px)  translateY(-4px) rotateY(-4deg)  rotateX(12deg); z-index: 2; }
.card-family .tier-card.pos-3 { transform: translate(-50%, -50%) translateX(60px)   translateY(-4px) rotateY(4deg)   rotateX(12deg); z-index: 3; }
.card-family .tier-card.pos-4 { transform: translate(-50%, -50%) translateX(180px)  translateY(8px) rotateY(12deg)  rotateX(10deg); z-index: 4; }

@media (max-width: 720px) {
  .card-family .tier-card.pos-1 { transform: translate(-50%, -50%) translateX(-90px) translateY(8px) rotateY(-10deg) rotateX(10deg); }
  .card-family .tier-card.pos-2 { transform: translate(-50%, -50%) translateX(-30px) translateY(-4px) rotateY(-4deg) rotateX(12deg); }
  .card-family .tier-card.pos-3 { transform: translate(-50%, -50%) translateX(30px)  translateY(-4px) rotateY(4deg)  rotateX(12deg); }
  .card-family .tier-card.pos-4 { transform: translate(-50%, -50%) translateX(90px)  translateY(8px) rotateY(10deg) rotateX(10deg); opacity: 0.7; }
}

.card-family .tc-head {
  display: flex; align-items: center; justify-content: space-between;
  font-size: 10px; letter-spacing: 0.08em; text-transform: uppercase;
}
.card-family .tc-head .brand { display: inline-flex; align-items: center; gap: 6px; font-weight: 500; }
.card-family .tc-head .brand .b {
  width: 12px; height: 12px; border-radius: 3px;
  background: currentColor; opacity: 0.9;
  display: inline-block;
}
.card-family .tier-card.t-verified .tc-head .brand .b { background: #FAFAF7; }
.card-family .tier-card.t-trusted .tc-head .brand .b,
.card-family .tier-card.t-anchored .tc-head .brand .b,
.card-family .tier-card.t-sovereign .tc-head .brand .b { background: #0A0A0B; }

.card-family .tc-handle {
  align-self: end;
  font-family: var(--font-display);
  font-size: clamp(20px, 2.4vw, 28px);
  letter-spacing: -0.02em;
  font-weight: 500;
}
.card-family .tc-handle .pre { font-family: var(--font-mono); font-size: 11px; opacity: 0.6; margin-right: 6px; font-weight: 400; }

.card-family .tc-foot {
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 8px;
  font-size: 9px;
  letter-spacing: 0.06em;
  text-transform: uppercase;
}
.card-family .tc-foot .fields { display: grid; gap: 4px; }
.card-family .tc-foot .row { display: grid; grid-template-columns: 60px 1fr; gap: 6px; }
.card-family .tc-foot .row span:first-child { opacity: 0.5; }
.card-family .tc-foot .qr {
  width: 40px; height: 40px;
  background-image: repeating-conic-gradient(currentColor 0% 25%, transparent 0% 50%);
  background-size: 8px 8px;
  border-radius: 4px;
  opacity: 0.8;
}

.card-family .tc-pulse-ring {
  position: absolute; inset: 0;
  border-radius: inherit;
  border: 1px solid #CFFF50;
  pointer-events: none;
  opacity: 0;
}
.card-family .tier-card { animation: tc-float 8s ease-in-out infinite; }
.card-family .tier-card.t-verified  .tc-pulse-ring { animation: tc-pulse 6s ease-out 0s infinite; }
.card-family .tier-card.t-trusted   .tc-pulse-ring { animation: tc-pulse 6s ease-out 1.5s infinite; }
.card-family .tier-card.t-anchored  .tc-pulse-ring { animation: tc-pulse 6s ease-out 3s infinite; }
.card-family .tier-card.t-sovereign .tc-pulse-ring { animation: tc-pulse 6s ease-out 4.5s infinite; border-color: #0A0A0B; }
@keyframes tc-pulse {
  0%, 100% { opacity: 0; }
  6% { opacity: 1; }
  20% { opacity: 0; }
}
@keyframes tc-float {
  0%, 100% { translate: 0 0; }
  50% { translate: 0 -6px; }
}

@media (prefers-reduced-motion: reduce) {
  .card-family .tier-card,
  .card-family .tc-pulse-ring { animation: none; }
}

.card-family-caption {
  text-align: center;
  margin: 32px auto 0;
  max-width: 560px;
  color: var(--fg-muted);
  font-size: 18px;
}

/* ============================================================
   Beem Card section
   ============================================================ */

.beem-section { padding: clamp(80px, 10vw, 140px) var(--pad-x); border-top: 1px solid var(--border-subtle); }
.beem-section .container { max-width: var(--content-max); margin: 0 auto; }
.beem-section h2 { font-size: clamp(40px, 6vw, 80px); line-height: 1.02; letter-spacing: -0.04em; margin: 12px 0 20px; }
.beem-section .lead { max-width: 720px; margin: 0 0 56px; font-size: 18px; color: var(--fg-secondary); }

/* ---- Container ---- */
.beem-v2 {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 36px;
  margin: 8px 0 56px;
}

/* ---- Tier selector (segmented control) ---- */
.beem-tiers {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  padding: 4px;
  background: var(--bg-elevated);
  border: 1px solid var(--border-subtle);
  border-radius: 999px;
}
.beem-tier-btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 8px 16px;
  border: 0;
  background: transparent;
  color: var(--fg-secondary);
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.08em;
  border-radius: 999px;
  cursor: pointer;
  transition: background 160ms ease, color 160ms ease;
}
.beem-tier-btn:hover { color: var(--fg-primary-dark); }
.beem-tier-btn.is-active {
  background: var(--bg-base);
  color: var(--fg-primary-dark);
  box-shadow: inset 0 0 0 1px var(--border-subtle);
}
.beem-tier-btn .swatch {
  width: 12px; height: 12px;
  border-radius: 3px;
  box-shadow: inset 0 0 0 1px rgba(255,255,255,0.06);
}

/* ---- 3D stage + flip wrapper ---- */
.beem-stage {
  width: min(560px, 92vw);
  aspect-ratio: 1.586 / 1;          /* ID-1 card aspect (85.6 × 54mm) */
  perspective: 1400px;
  cursor: pointer;
  user-select: none;
}
.beem-flip {
  position: relative;
  width: 100%;
  height: 100%;
  transform-style: preserve-3d;
  transition: transform 600ms cubic-bezier(0.4, 0, 0.2, 1);
  will-change: transform;
}
@media (prefers-reduced-motion: reduce) {
  .beem-flip { transition: none; }
}

/* ---- Faces (shared) ---- */
.beem-face {
  position: absolute;
  inset: 0;
  border-radius: 18px;
  border: 1px solid rgba(0,0,0,0.08);
  overflow: hidden;
  /* Opacity-based face switching is more reliable cross-browser
     than backface-visibility for compound 3D content. */
  transition: opacity 280ms cubic-bezier(0.4, 0, 0.2, 1);
  box-shadow:
    0 1px 0 rgba(255,255,255,0.04) inset,
    0 30px 60px -20px rgba(0,0,0,0.55),
    0 12px 24px -10px rgba(0,0,0,0.35);
}
.beem-face.beem-front-v2 { opacity: 1; }
.beem-face.beem-back-v2  { opacity: 0; }
.beem-flip.is-flipped > .beem-face.beem-front-v2 { opacity: 0; }
.beem-flip.is-flipped > .beem-face.beem-back-v2  { opacity: 1; }
@media (prefers-reduced-motion: reduce) {
  .beem-face { transition: none; }
}

/* ---- FRONT face ---- */
.beem-front-v2 {
  display: grid;
  grid-template-rows: auto auto auto 1fr auto;
  padding: 22px 26px 18px;
  gap: 14px;
  font-family: var(--font-display);
}
/* Faint engineered grid texture */
.beem-grid-tex {
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(currentColor 1px, transparent 1px),
    linear-gradient(90deg, currentColor 1px, transparent 1px);
  background-size: 28px 28px;
  opacity: 0.05;
  pointer-events: none;
  mix-blend-mode: multiply;
}
.beem-front-v2[style*="#1A1A1C"] .beem-grid-tex,
.beem-front-v2[style*="#0A0A0B"] .beem-grid-tex { mix-blend-mode: screen; opacity: 0.06; }

/* Hairline at vertical midpoint */
.beem-hairline {
  position: absolute;
  left: 0; right: 0;
  top: 50%;
  height: 1px;
  background: currentColor;
  opacity: 0.12;
  pointer-events: none;
}

/* Top band */
.beem-top {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  gap: 16px;
  position: relative;
  z-index: 1;
}
.beem-top .micro,
.beem-bot .micro,
.beem-foot .foot-cap {
  font-family: var(--font-mono);
  font-size: 9px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  opacity: 0.55;
  margin-bottom: 4px;
}
.beem-top-l .holder {
  font-family: var(--font-display);
  font-weight: 500;
  font-size: 15px;
  letter-spacing: -0.01em;
}
.beem-top-r {
  text-align: right;
  display: grid;
  justify-items: end;
  gap: 2px;
}
.beem-top-r .net {
  font-family: var(--font-display);
  font-style: italic;
  font-size: 12px;
  opacity: 0.7;
  letter-spacing: -0.01em;
}
.beem-top-r .mc-mark { display: block; height: 22px; width: auto; }

/* Card number */
.beem-num {
  font-family: 'OCR A', 'Courier New', ui-monospace, monospace;
  font-size: clamp(18px, 2.6vw, 22px);
  letter-spacing: 0.06em;
  position: relative;
  z-index: 1;
  margin-top: 2px;
}

/* Hinge — chip + contactless */
.beem-hinge {
  display: flex;
  align-items: center;
  gap: 14px;
  position: relative;
  z-index: 1;
}
.beem-hinge .emv-chip { display: block; }
.beem-hinge .cl-glyph { display: block; opacity: 0.85; }

/* Bottom band — identity */
.beem-bot {
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 16px;
  align-items: end;
  position: relative;
  z-index: 1;
}
.beem-bot-l .bid {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.04em;
  margin-bottom: 6px;
}
.beem-bot-l .kv {
  display: flex;
  justify-content: space-between;
  gap: 12px;
  font-family: var(--font-mono);
  font-size: 9.5px;
  letter-spacing: 0.06em;
  opacity: 0.7;
  max-width: 260px;
  padding: 2px 0;
}
.beem-bot-l .kv span:first-child { opacity: 0.6; }

/* In-card ID glyph (text version, italicized to echo the SVG glyph) */
.beem-bot-r { text-align: right; }
.beem-bot-r .id-glyph {
  font-family: var(--font-display);
  font-weight: 700;
  font-style: italic;
  font-size: 36px;
  letter-spacing: -0.04em;
  line-height: 1;
  display: inline-flex;
  align-items: baseline;
  margin-top: 4px;
}
.beem-bot-r .id-glyph .i,
.beem-bot-r .id-glyph .d {
  display: inline-block;
  position: relative;
}
/* Vertical "stems" piercing the letters, echoing the brand glyph */
.beem-bot-r .id-glyph .i::before,
.beem-bot-r .id-glyph .d::before {
  content: "";
  position: absolute;
  top: -6px; bottom: -6px;
  left: 50%;
  width: 2px;
  background: currentColor;
  transform: translateX(-50%) skewX(-13deg);
  opacity: 0.85;
  pointer-events: none;
}
.beem-bot-r .id-glyph .d::before { left: 18%; }

/* Foot */
.beem-foot {
  position: relative;
  z-index: 1;
  display: flex;
  align-items: center;
  gap: 12px;
  padding-top: 8px;
}
.beem-foot .dotted {
  flex: 1;
  height: 1px;
  background-image: linear-gradient(to right, currentColor 50%, transparent 50%);
  background-size: 4px 1px;
  background-repeat: repeat-x;
  opacity: 0.3;
}
.beem-foot .foot-cap {
  font-family: var(--font-mono);
  font-size: 9px;
  letter-spacing: 0.14em;
  opacity: 0.55;
  margin: 0;
  white-space: nowrap;
  flex-shrink: 0;
}

/* ---- BACK face ---- */
.beem-back-v2 {
  background: #0A0A0B;
  color: #FAFAF7;
  display: grid;
  grid-template-rows: auto 1fr auto;
  padding: 22px 26px;
  gap: 16px;
}
.beem-back-v2 .back-top {
  display: flex;
  justify-content: space-between;
  gap: 24px;
}
.beem-back-v2 .back-top .col {
  display: flex;
  flex-direction: column;
  gap: 2px;
}
.beem-back-v2 .back-top .k {
  font-family: var(--font-mono);
  font-size: 9px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: #71717A;
}
.beem-back-v2 .back-top .v {
  font-family: var(--font-mono);
  font-size: 13px;
  color: #FAFAF7;
}
.beem-back-v2 .back-mid {
  display: grid;
  justify-items: center;
  align-content: center;
  gap: 10px;
}
.beem-back-v2 .back-mid .scan {
  font-family: var(--font-mono);
  font-size: 9px;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: #71717A;
}
.beem-back-v2 .back-mid .qr {
  width: 112px; height: 112px;
  background: #FAFAF7;
  padding: 6px;
  border-radius: 6px;
  display: grid;
  place-items: center;
}
.beem-back-v2 .back-mid .qr svg { width: 100%; height: 100%; display: block; }
.beem-back-v2 .back-mid .handle {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.04em;
  color: #FAFAF7;
}
.beem-back-v2 .back-bot {
  display: flex;
  justify-content: space-between;
  align-items: end;
  gap: 16px;
  border-top: 1px solid rgba(255,255,255,0.08);
  padding-top: 12px;
}
.beem-back-v2 .back-bot .anchor-line {
  font-family: var(--font-mono);
  font-size: 9px;
  letter-spacing: 0.08em;
  color: #71717A;
  line-height: 1.5;
  max-width: 60%;
}
.beem-back-v2 .back-bot .id-glyph {
  font-family: var(--font-display);
  font-weight: 700;
  font-style: italic;
  font-size: 26px;
  letter-spacing: -0.04em;
  line-height: 1;
  color: #FAFAF7;
  display: inline-flex;
}
.beem-back-v2 .back-bot .id-glyph .i,
.beem-back-v2 .back-bot .id-glyph .d {
  display: inline-block;
  position: relative;
}
.beem-back-v2 .back-bot .id-glyph .i::before,
.beem-back-v2 .back-bot .id-glyph .d::before {
  content: "";
  position: absolute;
  top: -5px; bottom: -5px;
  left: 50%;
  width: 1.5px;
  background: currentColor;
  transform: translateX(-50%) skewX(-13deg);
  opacity: 0.9;
}
.beem-back-v2 .back-bot .id-glyph .d::before { left: 18%; }

/* ---- Mobile ---- */
@media (max-width: 600px) {
  .beem-tiers { flex-wrap: wrap; justify-content: center; }
  .beem-tier-btn { padding: 6px 12px; font-size: 10px; }
  .beem-tier-btn .name { display: none; }
  .beem-tier-btn .swatch { width: 16px; height: 16px; }
  .beem-stage { width: 92vw; }
  .beem-front-v2 { padding: 16px 18px 14px; gap: 10px; }
  .beem-back-v2 { padding: 16px 18px; }
  .beem-num { font-size: 16px; }
  .beem-bot-r .id-glyph { font-size: 28px; }
}

/* ============================================================
   Two-column problem (FIX 2)
   ============================================================ */

.problem-2col {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 0;
  margin-top: 56px;
  border-top: 1px solid var(--border-subtle);
  border-bottom: 1px solid var(--border-subtle);
}
.problem-2col > div { padding: 40px clamp(20px, 3vw, 40px); }
.problem-2col > div:first-child { border-right: 1px solid var(--border-subtle); }
@media (max-width: 760px) {
  .problem-2col { grid-template-columns: 1fr; }
  .problem-2col > div:first-child { border-right: 0; border-bottom: 1px solid var(--border-subtle); }
}
.problem-2col h3 {
  font-size: 24px; font-weight: 500;
  margin: 12px 0 24px;
  letter-spacing: -0.01em;
}
.problem-row {
  display: flex; align-items: baseline; justify-content: space-between;
  gap: 20px;
  padding: 16px 0;
  border-top: 1px solid var(--border-subtle);
}
.problem-row:last-child { border-bottom: 1px solid var(--border-subtle); }
.problem-row .l { font-size: 18px; color: var(--fg-primary-dark); flex: 1; }
.problem-row .r { font-family: var(--font-mono); font-size: 13px; color: var(--fg-muted); text-align: right; }

.problem-resolve {
  margin-top: 32px;
  padding: 24px;
  border: 1px solid #CFFF50;
  border-radius: 12px;
  display: flex; align-items: baseline; justify-content: space-between;
  gap: 24px;
  flex-wrap: wrap;
}
.problem-resolve .lbl {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: #CFFF50;
}
.problem-resolve .body {
  flex: 1;
  font-size: 16px;
  color: var(--fg-primary-dark);
}

/* ============================================================
   /about — full body
   ============================================================ */

.about-prose { max-width: 720px; margin: 0 auto; }
.about-section { padding: clamp(64px, 8vw, 96px) var(--pad-x); }
.about-section + .about-section { border-top: 1px solid var(--border-subtle); }
.about-section .container { max-width: 720px; margin: 0 auto; }
.about-section h1 {
  font-size: clamp(48px, 6vw, 64px);
  line-height: 1.04;
  letter-spacing: -0.04em;
  margin: 12px 0 24px;
  font-weight: 500;
}
.about-section h2 {
  font-size: clamp(28px, 3.6vw, 36px);
  margin: 12px 0 20px;
  font-weight: 500;
  letter-spacing: -0.02em;
}
.about-section p {
  font-size: 18px; line-height: 1.7; color: var(--fg-primary-dark);
  margin: 0 0 18px;
}
.about-section p strong { font-weight: 500; }
.about-section .sub { font-size: 22px; color: var(--fg-muted); line-height: 1.5; }

.about-links {
  margin-top: 32px;
  display: grid;
  gap: 0;
}
.about-links .row {
  display: grid;
  grid-template-columns: 140px 1fr;
  gap: 24px;
  padding: 14px 0;
  border-top: 1px dotted var(--border-subtle);
  align-items: baseline;
}
.about-links .row:last-child { border-bottom: 1px dotted var(--border-subtle); }
.about-links .lbl {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--fg-muted);
}
.about-links .val { font-size: 15px; color: var(--fg-primary-dark); }
.about-links .val a {
  color: var(--accent-anchor);
  display: inline-flex; align-items: center; gap: 6px;
}
.about-links .val a .arr { display: inline-block; transition: transform 120ms; }
.about-links .val a:hover .arr { transform: translateX(4px); }

.about-contact {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
  padding: 32px var(--pad-x);
  border-top: 1px solid var(--border-subtle);
  max-width: var(--content-max);
  margin: 0 auto;
}
@media (max-width: 720px) { .about-contact { grid-template-columns: 1fr; } }
.about-contact .lbl {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--fg-muted);
  margin-bottom: 6px;
}
.about-contact .val { color: var(--fg-primary-dark); font-size: 15px; }

/* ============================================================
   /whitepaper — dark redesign
   ============================================================ */

.wp-dark { padding: 0; }
.wp-dark .wp-section { padding: clamp(56px, 7vw, 96px) var(--pad-x); }
.wp-dark .wp-section + .wp-section { border-top: 1px solid var(--border-subtle); }
.wp-dark .container { max-width: 760px; margin: 0 auto; }
.wp-dark h1 {
  font-family: var(--font-display);
  font-size: clamp(40px, 5.5vw, 64px);
  line-height: 1.04;
  letter-spacing: -0.035em;
  font-weight: 500;
  margin: 12px 0 24px;
}
.wp-dark h2 {
  font-family: var(--font-display);
  font-size: clamp(26px, 3vw, 36px);
  letter-spacing: -0.02em;
  font-weight: 500;
  margin: 12px 0 20px;
}
.wp-dark p { font-size: 18px; line-height: 1.7; color: var(--fg-primary-dark); margin: 0 0 18px; }
.wp-dark .lead { font-size: 22px; color: var(--fg-muted); line-height: 1.5; max-width: 760px; }
.wp-dark .author {
  font-family: var(--font-mono);
  font-size: 13px;
  color: var(--fg-muted);
  margin-top: 24px;
  line-height: 1.6;
}
.wp-dark .ctas { display: flex; gap: 12px; flex-wrap: wrap; margin-top: 32px; }
.wp-dark .btn-orange {
  background: var(--accent-anchor);
  color: #0A0A0B;
  padding: 14px 22px;
  border-radius: 999px;
  border: 0;
  font-size: 15px;
  font-weight: 500;
  cursor: pointer;
  display: inline-flex; align-items: center; gap: 8px;
  font-family: inherit;
}
.wp-dark .btn-orange:hover { opacity: 0.9; }

.wp-toc-table {
  width: 100%;
  border-collapse: collapse;
  margin-top: 24px;
  font-size: 15px;
}
.wp-toc-table tr { border-top: 1px solid var(--border-subtle); }
.wp-toc-table tr:last-child { border-bottom: 1px solid var(--border-subtle); }
.wp-toc-table td {
  padding: 14px 16px 14px 0;
}
.wp-toc-table td:first-child { font-family: var(--font-mono); font-size: 12px; color: var(--fg-muted); width: 60px; letter-spacing: 0.04em; }
.wp-toc-table td:last-child { font-family: var(--font-mono); font-size: 12px; color: var(--fg-muted); text-align: right; width: 80px; }

.wp-cols {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 0;
  margin-top: 24px;
  border-top: 1px solid var(--border-subtle);
  border-bottom: 1px solid var(--border-subtle);
}
@media (max-width: 720px) { .wp-cols { grid-template-columns: 1fr; } }
.wp-cols > div { padding: 28px clamp(20px, 3vw, 36px); }
.wp-cols > div:first-child { border-right: 1px solid var(--border-subtle); }
@media (max-width: 720px) {
  .wp-cols > div:first-child { border-right: 0; border-bottom: 1px solid var(--border-subtle); }
}
.wp-cols .lbl {
  font-family: var(--font-mono); font-size: 11px;
  letter-spacing: 0.08em; text-transform: uppercase; color: var(--fg-muted);
  margin-bottom: 12px;
}

.wp-form {
  background: #0F0F11;
  border: 1px solid var(--border-subtle);
  border-radius: 12px;
  padding: 32px;
  max-width: 520px;
  margin-top: 32px;
}
.wp-form .field input, .wp-form .field textarea, .wp-form .field select {
  background: var(--bg-base);
  border: 1px solid var(--border-subtle);
  color: var(--fg-primary-dark);
  padding: 12px 14px;
  border-radius: 8px;
  font-family: var(--font-body);
  font-size: 15px;
  width: 100%;
}
.wp-form .field select {
  appearance: none;
  -webkit-appearance: none;
  background-image: linear-gradient(45deg, transparent 50%, var(--fg-muted) 50%), linear-gradient(135deg, var(--fg-muted) 50%, transparent 50%);
  background-position: calc(100% - 18px) 50%, calc(100% - 13px) 50%;
  background-size: 5px 5px;
  background-repeat: no-repeat;
  padding-right: 36px;
}
.wp-form .check {
  display: flex; gap: 10px; align-items: flex-start;
  font-size: 13px; color: var(--fg-muted);
  margin: 16px 0 20px;
}
.wp-form .check input { margin-top: 3px; }
.wp-form .submit-orange {
  background: var(--accent-anchor); color: #0A0A0B;
  border: 0; padding: 14px 22px; border-radius: 999px;
  font-size: 15px; font-weight: 500; cursor: pointer;
  width: 100%; font-family: inherit;
}
.wp-form .submit-orange:hover { opacity: 0.9; }
.wp-form .submit-orange:disabled { opacity: 0.5; cursor: default; }

.wp-code {
  background: #0F0F11;
  border: 1px solid var(--border-subtle);
  border-radius: 8px;
  padding: 18px 20px;
  font-family: var(--font-mono);
  font-size: 12px;
  line-height: 1.6;
  color: var(--fg-primary-dark);
  white-space: pre;
  overflow-x: auto;
  margin: 16px 0 24px;
}

/* ============================================================
   Trust band
   ============================================================ */

.trust-band {
  border-top: 1px solid var(--border-subtle);
  border-bottom: 1px solid var(--border-subtle);
  padding: clamp(32px, 5vw, 56px) var(--pad-x);
}
.trust-band-inner {
  max-width: var(--content-max);
  margin: 0 auto;
  display: grid;
  grid-template-columns: 1fr 1fr 1fr;
  gap: 0;
}
.trust-line {
  text-align: center;
  font-family: var(--font-display);
  font-size: clamp(15px, 1.4vw, 18px);
  letter-spacing: -0.01em;
  color: var(--fg-primary-dark);
  padding: 8px 24px;
  border-right: 1px solid var(--border-subtle);
}
.trust-line:last-child { border-right: 0; }
@media (max-width: 720px) {
  .trust-band-inner { grid-template-columns: 1fr; }
  .trust-line { border-right: 0; border-bottom: 1px solid var(--border-subtle); padding: 16px; }
  .trust-line:last-child { border-bottom: 0; }
}

/* ============================================================
   Problem section
   ============================================================ */

.problem-stack { display: grid; gap: 12px; max-width: 720px; margin: 48px 0 0; }
.problem-card {
  display: flex; align-items: center; justify-content: space-between;
  padding: 20px 24px;
  background: var(--bg-elevated);
  border: 1px solid var(--border-subtle);
  border-radius: 12px;
  font-size: 16px;
}
.problem-card .label { font-family: var(--font-display); font-weight: 500; }
.problem-card .cost { font-family: var(--font-mono); font-size: 13px; color: var(--fg-muted); }
.problem-card .arrow { color: var(--fg-muted); margin: 0 16px; }

.problem-divider {
  height: 1px; background: var(--border-subtle); margin: 24px 0;
}

.problem-card--lime {
  border-color: rgba(207,255,80,0.5);
  background: linear-gradient(180deg, rgba(207,255,80,0.04), transparent);
  box-shadow: 0 0 0 1px rgba(207,255,80,0.12) inset;
}
.problem-card--lime .label { color: var(--fg-primary-dark); }
.problem-card--lime .cost { color: var(--accent-signal); }

/* ============================================================
   Audience scenes
   ============================================================ */

.scene {
  padding: clamp(80px, 10vw, 140px) var(--pad-x);
  border-top: 1px solid var(--border-subtle);
}
.scene-grid {
  max-width: var(--content-max);
  margin: 0 auto;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: clamp(40px, 6vw, 96px);
  align-items: center;
}
.scene-grid--reverse > .scene-visual { order: -1; }
@media (max-width: 880px) {
  .scene-grid { grid-template-columns: 1fr; }
  .scene-grid--reverse > .scene-visual { order: 0; }
}
.scene-copy h2 { margin-bottom: 16px; }
.scene-copy .lead { color: var(--fg-muted); }

.scene-visual {
  background: var(--bg-elevated);
  border: 1px solid var(--border-subtle);
  border-radius: 16px;
  padding: 36px;
  min-height: 320px;
  display: grid;
  place-items: center;
  position: relative;
  overflow: hidden;
}

/* Schematic — six-to-one collapse */
.schema-collapse {
  width: 100%;
  display: grid;
  grid-template-columns: 1fr 60px 1fr;
  align-items: center;
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--fg-muted);
}
.schema-list { display: grid; gap: 14px; }
.schema-list li {
  list-style: none;
  padding: 8px 12px;
  border: 1px solid var(--border-subtle);
  border-radius: 6px;
  background: rgba(20,20,22,0.5);
  text-align: center;
}
.schema-arrow {
  height: 100%; min-height: 200px;
  position: relative;
  display: grid; place-items: center;
}
.schema-arrow svg { width: 100%; height: 100%; }
.schema-out {
  border: 1px solid var(--border-subtle);
  border-radius: 8px;
  padding: 16px;
  background: var(--bg-base);
  text-align: center;
}
.schema-out .api {
  font-family: var(--font-mono);
  font-size: 14px;
  color: var(--fg-primary-dark);
  margin-bottom: 6px;
}
.schema-out .anchor {
  display: inline-flex; align-items: center; gap: 6px;
  color: var(--accent-anchor);
  font-size: 11px;
}

/* Schematic — agent split */
.schema-agent {
  width: 100%;
  display: grid;
  gap: 24px;
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--fg-muted);
}
.schema-agent .pair {
  display: grid;
  grid-template-columns: 1fr 100px 1fr;
  align-items: center;
}
.schema-agent .node {
  border: 1px solid var(--border-subtle);
  border-radius: 8px;
  padding: 14px;
  text-align: center;
  background: rgba(20,20,22,0.5);
}
.schema-agent .node .lbl { color: var(--fg-primary-dark); font-size: 13px; margin-bottom: 4px; }
.schema-agent .link {
  position: relative;
  height: 28px;
  display: grid; place-items: center;
}
.schema-agent .link::before {
  content: "";
  position: absolute; left: 0; right: 0; top: 50%;
  height: 1px; background: var(--border-subtle);
}
.schema-agent .link span {
  position: relative;
  background: var(--bg-elevated);
  padding: 2px 10px;
  font-size: 10px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--fg-muted);
}
.schema-agent .revoke {
  display: inline-flex; align-items: center; gap: 8px;
  padding: 8px 14px;
  border: 1px solid var(--accent-anchor);
  color: var(--accent-anchor);
  border-radius: 999px;
  font-size: 11px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  justify-self: center;
}
.schema-agent .revoke .dot { width: 8px; height: 8px; border-radius: 999px; background: var(--accent-anchor); }

/* ============================================================
   Market table
   ============================================================ */

.market-table-wrap { margin-top: 48px; border: 1px solid var(--border-subtle); border-radius: 12px; overflow: hidden; }
.market-table {
  width: 100%;
  border-collapse: collapse;
  font-family: var(--font-display);
  font-size: 16px;
}
.market-table th, .market-table td {
  text-align: left;
  padding: 18px 24px;
  border-bottom: 1px solid var(--border-subtle);
}
.market-table th {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--fg-muted);
  font-weight: 500;
  background: var(--bg-elevated);
}
.market-table td:last-child { text-align: right; font-family: var(--font-mono); font-size: 14px; color: var(--fg-muted); }
.market-table tr:last-child td { border-bottom: 0; }
.market-table tr.total td { color: var(--accent-anchor); font-weight: 500; }
.market-table tr.total td:last-child { color: var(--accent-anchor); font-size: 18px; }

.pull-quote {
  margin: 64px auto 0;
  max-width: 720px;
  font-family: var(--font-serif);
  font-style: italic;
  font-size: clamp(24px, 3vw, 36px);
  line-height: 1.3;
  letter-spacing: -0.01em;
  text-align: center;
  color: var(--fg-primary-dark);
}
body.theme-light .pull-quote { color: var(--fg-primary-light); }
.pull-caption {
  text-align: center;
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--fg-muted);
  margin-top: 16px;
}

/* ============================================================
   Two-column band
   ============================================================ */

.two-col {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: clamp(32px, 5vw, 80px);
  border-top: 1px solid var(--border-subtle);
  border-bottom: 1px solid var(--border-subtle);
}
.two-col > div { padding: clamp(48px, 6vw, 80px) 0; }
.two-col > div:first-child { border-right: 1px solid var(--border-subtle); padding-right: clamp(32px, 4vw, 64px); }
.two-col > div:last-child { padding-left: clamp(32px, 4vw, 64px); }
.two-col h3 { margin-bottom: 16px; font-size: clamp(22px, 2.4vw, 28px); }
.two-col p { color: var(--fg-muted); margin: 0; }
@media (max-width: 760px) {
  .two-col { grid-template-columns: 1fr; }
  .two-col > div:first-child { border-right: 0; border-bottom: 1px solid var(--border-subtle); padding: 32px 0; }
  .two-col > div:last-child { padding: 32px 0; }
}

/* ============================================================
   Founders band
   ============================================================ */

.founders {
  text-align: center;
  max-width: 760px;
  margin: 0 auto;
}
.founders h2 { margin-bottom: 32px; }
.founders p { color: var(--fg-muted); font-size: 18px; line-height: 1.6; text-align: left; }
.founders p strong { color: var(--fg-primary-dark); font-weight: 500; }
.founders p a { color: var(--fg-primary-dark); border-bottom: 1px solid var(--fg-muted); transition: border-color 80ms; }
.founders p a:hover { border-bottom-color: var(--fg-primary-dark); }
body.theme-light .founders p strong, body.theme-light .founders p a { color: var(--fg-primary-light); }

.cred-chips {
  margin-top: 32px;
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--fg-muted);
  display: inline-flex;
  flex-wrap: wrap;
  gap: 14px;
  justify-content: center;
}
.cred-chips .sep { opacity: 0.5; }

.inline-link {
  display: inline-flex; align-items: center; gap: 4px;
  margin-top: 24px;
  color: var(--fg-primary-dark);
  font-size: 14px;
  border-bottom: 1px solid var(--border-subtle);
  padding-bottom: 2px;
  transition: border-color 80ms;
}
.inline-link:hover { border-bottom-color: var(--fg-muted); }
body.theme-light .inline-link { color: var(--fg-primary-light); border-bottom-color: var(--border-subtle-light); }

/* ============================================================
   Roadmap chips
   ============================================================ */

.roadmap-chips {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 12px;
  margin-top: 32px;
}
.chip {
  font-family: var(--font-mono);
  font-size: 13px;
  padding: 16px 20px;
  background: var(--bg-elevated);
  border: 1px solid var(--border-subtle);
  border-radius: 10px;
  display: flex; align-items: center; justify-content: space-between;
  gap: 16px;
}
.chip .meta { color: var(--fg-muted); }
.chip .title { color: var(--fg-primary-dark); }
.chip .status {
  font-size: 11px; letter-spacing: 0.08em; text-transform: uppercase;
  color: var(--fg-muted);
}
.chip.is-available .status { color: var(--accent-signal); }
.chip.is-available .status::before {
  content: "✓ ";
  color: var(--accent-signal);
}
@media (max-width: 720px) { .roadmap-chips { grid-template-columns: 1fr; } }

/* ============================================================
   Final CTA band
   ============================================================ */

.final-cta {
  text-align: center;
  background: var(--bg-base);
  border-top: 1px solid var(--border-subtle);
  padding: clamp(80px, 10vw, 120px) var(--pad-x);
}
.final-cta h2 {
  font-family: var(--font-serif);
  font-style: italic;
  font-weight: 400;
  font-size: clamp(28px, 4vw, 44px);
  letter-spacing: -0.02em;
  max-width: 720px;
  margin: 0 auto 40px;
  line-height: 1.25;
}
.final-cta-row { display: flex; gap: 12px; justify-content: center; flex-wrap: wrap; }

/* ============================================================
   Footer
   ============================================================ */

.footer {
  border-top: 1px solid var(--border-subtle);
  padding: 64px var(--pad-x) 32px;
  font-size: 14px;
  color: var(--fg-muted);
  background: var(--bg-base);
}
body.theme-light .footer { background: var(--bg-inverse); border-top-color: var(--border-subtle-light); }

.footer-cols {
  max-width: var(--content-max);
  margin: 0 auto;
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: 48px;
  padding-bottom: 48px;
  border-bottom: 1px solid var(--border-subtle);
}
body.theme-light .footer-cols { border-bottom-color: var(--border-subtle-light); }

@media (max-width: 720px) {
  .footer-cols { grid-template-columns: 1fr 1fr; }
}

.footer-brand { font-family: var(--font-display); font-size: 18px; font-weight: 500; letter-spacing: -0.01em; color: var(--fg-primary-dark); display: inline-flex; align-items: baseline; gap: 10px; margin-bottom: 16px; text-decoration: none; }
.footer-brand .brand-glyph { transform: translateY(15%); }
body.theme-light .footer-brand { color: var(--fg-primary-light); }
.footer-tagline { font-size: 13px; color: var(--fg-muted); max-width: 280px; }

.footer-col h4 {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--fg-muted);
  font-weight: 500;
  margin: 0 0 16px;
}
.footer-col ul { list-style: none; padding: 0; margin: 0; display: grid; gap: 10px; }
.footer-col a { color: var(--fg-muted); transition: color 80ms; }
.footer-col a:hover { color: var(--fg-primary-dark); }
body.theme-light .footer-col a:hover { color: var(--fg-primary-light); }

.footer-meta {
  max-width: var(--content-max);
  margin: 0 auto;
  padding-top: 24px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 16px;
  font-family: var(--font-mono);
  font-size: 12px;
}
.footer-meta .anchor-line { color: var(--fg-muted); }
.footer-meta .anchor-line .anchor { color: var(--accent-anchor); }
.footer-meta .block-height { color: var(--fg-muted); }
.footer-meta .block-height span { color: var(--fg-primary-dark); }
body.theme-light .footer-meta .block-height span { color: var(--fg-primary-light); }

.footer-x {
  width: 32px; height: 32px;
  display: inline-grid; place-items: center;
  border: 1px solid var(--border-subtle);
  border-radius: 999px;
  color: var(--fg-muted);
  transition: border-color 80ms;
}
.footer-x:hover { border-color: var(--fg-primary-dark); color: var(--fg-primary-dark); }

/* ============================================================
   Forms (intake)
   ============================================================ */

.form-card {
  max-width: 560px;
  margin: 0 auto;
  background: var(--bg-elevated);
  border: 1px solid var(--border-subtle);
  border-radius: 16px;
  padding: 40px;
}
@media (max-width: 600px) { .form-card { padding: 28px; } }
.form-card h1 { font-size: clamp(28px, 3.6vw, 40px); margin-bottom: 12px; }
.form-card .lead { font-size: 16px; margin-bottom: 28px; }

.field { display: grid; gap: 6px; margin-bottom: 18px; }
.field label {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--fg-muted);
}
.field input, .field textarea {
  background: var(--bg-base);
  border: 1px solid var(--border-subtle);
  color: var(--fg-primary-dark);
  padding: 12px 14px;
  border-radius: 8px;
  font-family: var(--font-body);
  font-size: 15px;
  transition: border-color 80ms;
}
.field input:focus, .field textarea:focus {
  outline: none;
  border-color: var(--fg-muted);
}
.field textarea { min-height: 100px; resize: vertical; }

.form-success {
  text-align: center;
  padding: 40px 24px;
}
.form-success .checkmark {
  width: 48px; height: 48px;
  border-radius: 999px;
  display: inline-grid; place-items: center;
  background: rgba(207,255,80,0.12);
  color: var(--accent-signal);
  margin-bottom: 16px;
  font-size: 22px;
}
.form-success p { color: var(--fg-muted); }

/* ============================================================
   Page hero (smaller pages)
   ============================================================ */

.page-hero {
  padding: clamp(80px, 10vw, 140px) var(--pad-x) clamp(40px, 5vw, 64px);
  border-bottom: 1px solid var(--border-subtle);
}
body.theme-light .page-hero { border-bottom-color: var(--border-subtle-light); }
.page-hero .container { max-width: var(--content-max); margin: 0 auto; }
.page-hero h1 { font-size: clamp(36px, 5vw, 64px); margin-bottom: 16px; }
.page-hero .lead { color: var(--fg-muted); }

.breadcrumb {
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--fg-muted);
  margin-bottom: 24px;
  letter-spacing: 0.04em;
}
.breadcrumb a:hover { color: var(--fg-primary-dark); }

/* ============================================================
   Trust pillars
   ============================================================ */

.pillars {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
  margin-top: 48px;
}
@media (max-width: 880px) { .pillars { grid-template-columns: 1fr; } }
.pillar {
  background: var(--bg-elevated);
  border: 1px solid var(--border-subtle);
  border-radius: 16px;
  padding: 32px;
}
.pillar h3 { margin-bottom: 12px; }
.pillar p { color: var(--fg-muted); font-size: 15px; margin: 0; }

.compliance-row {
  margin-top: 48px;
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--fg-muted);
}
.compliance-row span {
  padding: 8px 14px;
  border: 1px solid var(--border-subtle);
  border-radius: 999px;
}

.opencore {
  margin-top: 56px;
  padding: 32px;
  border: 1px solid var(--border-subtle);
  border-radius: 16px;
  background: var(--bg-elevated);
}
.opencore h3 { font-family: var(--font-display); font-size: 22px; margin-bottom: 14px; }
.opencore p { color: var(--fg-muted); margin: 0 0 12px; }
.opencore p:last-child { margin: 0; }

/* ============================================================
   Roadmap page
   ============================================================ */

.timeline {
  font-family: var(--font-mono);
  font-size: 14px;
  max-width: 720px;
  margin: 0 auto;
  display: grid;
  gap: 40px;
}
.timeline-block h3 {
  font-family: var(--font-mono);
  font-size: 13px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--fg-muted);
  margin-bottom: 16px;
  font-weight: 500;
}
.timeline-block ul { list-style: none; padding: 0; margin: 0; display: grid; gap: 10px; }
.timeline-block li {
  display: flex; align-items: center; gap: 16px;
  padding: 14px 18px;
  background: var(--bg-elevated);
  border: 1px solid var(--border-subtle);
  border-radius: 8px;
}
.timeline-block li .marker {
  width: 6px; height: 6px; border-radius: 999px;
  background: var(--fg-muted);
  flex-shrink: 0;
}
.timeline-block li.is-available .marker { background: var(--accent-signal); box-shadow: 0 0 8px rgba(207,255,80,0.5); }
.timeline-block li .text { flex: 1; }
.timeline-block li .status { color: var(--fg-muted); font-size: 11px; letter-spacing: 0.08em; text-transform: uppercase; }
.timeline-block li.is-available .status { color: var(--accent-signal); }

/* ============================================================
   Whitepaper light page
   ============================================================ */

.wp-page {
  max-width: 720px;
  margin: 0 auto;
  padding: clamp(64px, 8vw, 120px) var(--pad-x);
  font-family: var(--font-body);
  color: var(--fg-primary-light);
}
.wp-page h1 {
  font-family: var(--font-serif);
  font-style: normal;
  font-weight: 400;
  font-size: clamp(40px, 5.5vw, 60px);
  line-height: 1.1;
  letter-spacing: -0.02em;
  margin-bottom: 16px;
}
.wp-meta { display: flex; align-items: center; gap: 12px; margin-bottom: 32px; font-family: var(--font-mono); font-size: 13px; color: var(--fg-muted-light); }
.wp-meta .anchor { color: var(--accent-anchor); display: inline-flex; align-items: center; gap: 6px; }

.wp-page h2 {
  font-family: var(--font-serif);
  font-weight: 400;
  font-size: 28px;
  margin: 56px 0 16px;
  letter-spacing: -0.01em;
}
.wp-page p { font-size: 17px; line-height: 1.7; color: #1F1F22; }
.wp-page .wp-toc {
  margin: 32px 0;
  padding: 24px;
  border: 1px solid var(--border-subtle-light);
  border-radius: 12px;
  background: #FFFFFF;
}
.wp-page .wp-toc ol { margin: 12px 0 0; padding-left: 20px; font-family: var(--font-mono); font-size: 14px; color: var(--fg-muted-light); }
.wp-page .wp-toc ol a { color: var(--fg-primary-light); border-bottom: 1px dashed var(--border-subtle-light); }
.wp-page .wp-toc h3 { font-family: var(--font-mono); font-size: 11px; letter-spacing: 0.08em; text-transform: uppercase; color: var(--fg-muted-light); font-weight: 500; }

.wp-ctas { display: flex; gap: 12px; margin: 24px 0 48px; flex-wrap: wrap; }

.wp-placeholder {
  font-family: var(--font-mono);
  font-size: 13px;
  color: var(--fg-muted-light);
  padding: 16px 20px;
  border: 1px dashed var(--border-subtle-light);
  border-radius: 8px;
  background: #F4F4F0;
}

.wp-authors {
  font-family: var(--font-mono);
  font-size: 13px;
  color: var(--fg-muted-light);
  margin-bottom: 24px;
}

/* ============================================================
   About credentials table
   ============================================================ */

.creds-table {
  margin-top: 48px;
  width: 100%;
  border-collapse: collapse;
  font-size: 15px;
}
.creds-table td {
  padding: 16px 0;
  border-bottom: 1px solid var(--border-subtle);
  vertical-align: top;
}
.creds-table td:first-child {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--fg-muted);
  width: 220px;
}
.creds-table tr:last-child td { border-bottom: 0; }

/* ============================================================
   Modal (whitepaper "Cite this work")
   ============================================================ */

.modal-overlay {
  position: fixed; inset: 0;
  background: rgba(10,10,11,0.6);
  display: grid; place-items: center;
  z-index: 100;
  backdrop-filter: blur(8px);
  padding: 24px;
}
.modal {
  background: #FFFFFF;
  color: var(--fg-primary-light);
  border-radius: 16px;
  padding: 32px;
  max-width: 560px; width: 100%;
  border: 1px solid var(--border-subtle-light);
  max-height: 85vh; overflow-y: auto;
}
.modal h3 { font-family: var(--font-serif); font-weight: 400; font-size: 24px; margin-bottom: 8px; }
.modal-tabs { display: flex; gap: 4px; margin: 16px 0; border-bottom: 1px solid var(--border-subtle-light); }
.modal-tab {
  padding: 8px 14px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--fg-muted-light);
  background: none; border: 0; border-bottom: 2px solid transparent;
  cursor: pointer;
}
.modal-tab.is-active { color: var(--fg-primary-light); border-bottom-color: var(--fg-primary-light); }
.modal pre {
  font-family: var(--font-mono);
  font-size: 13px;
  background: #F4F4F0;
  padding: 16px;
  border-radius: 8px;
  white-space: pre-wrap;
  word-break: break-word;
}
.modal-close {
  position: absolute; top: 16px; right: 16px;
  background: none; border: 0; font-size: 20px; cursor: pointer; color: var(--fg-muted-light);
}

/* ============================================================
   Glossary / Vs / Press / Legal shells
   ============================================================ */

.shell-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
  margin-top: 32px;
}
@media (max-width: 720px) { .shell-grid { grid-template-columns: 1fr; } }
.shell-card {
  padding: 24px;
  border: 1px solid var(--border-subtle);
  border-radius: 12px;
  background: var(--bg-elevated);
}
.shell-card h3 { font-size: 18px; margin-bottom: 8px; }
.shell-card p { color: var(--fg-muted); font-size: 14px; margin: 0; }

.placeholder-block {
  margin-top: 32px;
  padding: 32px;
  border: 1px dashed var(--border-subtle);
  border-radius: 12px;
  font-family: var(--font-mono);
  font-size: 13px;
  color: var(--fg-muted);
}

.palette-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(160px, 1fr));
  gap: 12px;
  margin-top: 24px;
}
.palette-swatch {
  border: 1px solid var(--border-subtle);
  border-radius: 10px;
  overflow: hidden;
  background: var(--bg-elevated);
}
.palette-swatch .chip-color {
  height: 80px;
}
.palette-swatch .chip-meta {
  padding: 12px 14px;
  font-family: var(--font-mono);
  font-size: 11px;
  color: var(--fg-muted);
  display: grid; gap: 2px;
}
.palette-swatch .chip-meta .name { color: var(--fg-primary-dark); font-size: 12px; }

/* ============================================================
   Reduced motion
   ============================================================ */

@media (prefers-reduced-motion: reduce) {
  * { animation-duration: 0.01ms !important; animation-iteration-count: 1 !important; transition-duration: 0.01ms !important; }
}


/* ============================================================
   ABOUT PAGE
   ============================================================ */
.about-hero {
  padding: clamp(80px, 10vw, 140px) var(--pad-x) clamp(60px, 7vw, 100px);
  border-bottom: 1px solid var(--border-subtle);
}
.about-hero .container { max-width: var(--content-max); margin: 0 auto; }
.about-h1 {
  font-family: var(--font-display);
  font-weight: 500;
  font-size: clamp(44px, 7vw, 96px);
  line-height: 1.02;
  letter-spacing: -0.04em;
  margin: 16px 0 24px;
  max-width: 1200px;
  text-wrap: balance;
}
.about-sub {
  font-family: var(--font-display);
  font-size: clamp(20px, 2vw, 26px);
  line-height: 1.45;
  color: var(--fg-muted);
  max-width: 820px;
  margin: 0 0 56px;
  text-wrap: pretty;
}
.about-stats {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1px;
  background: var(--border-subtle);
  border: 1px solid var(--border-subtle);
}
.about-stats > div {
  background: var(--bg-base);
  padding: 28px 28px 32px;
  display: flex; flex-direction: column; gap: 12px;
}
.about-stats .n {
  font-family: var(--font-display);
  font-weight: 500;
  font-size: clamp(40px, 5vw, 64px);
  letter-spacing: -0.04em;
  line-height: 1;
}
.about-stats .l {
  font-family: var(--font-mono);
  font-size: 11px;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--fg-muted);
}
@media (max-width: 720px) {
  .about-stats { grid-template-columns: 1fr; }
}

.about-story {
  padding: clamp(80px, 9vw, 120px) var(--pad-x);
  border-bottom: 1px solid var(--border-subtle);
}
.about-h2 {
  font-family: var(--font-display);
  font-weight: 500;
  font-size: clamp(32px, 4.5vw, 56px);
  line-height: 1.05;
  letter-spacing: -0.03em;
  margin: 12px 0 40px;
  text-wrap: balance;
}
.about-prose p {
  font-family: var(--font-display);
  font-size: 21px;
  line-height: 1.55;
  color: var(--fg-primary);
  margin: 0 0 24px;
  text-wrap: pretty;
}
.about-prose p a { color: var(--fg-primary); border-bottom: 1px solid rgba(250,250,247,0.4); }
.about-prose p a:hover { border-bottom-color: var(--fg-primary); }
.about-italic {
  font-family: 'Instrument Serif', Georgia, serif !important;
  font-style: italic;
  font-size: 32px !important;
  line-height: 1.2 !important;
  color: var(--accent-anchor) !important;
  margin-top: 40px !important;
}

.about-principles {
  padding: clamp(80px, 9vw, 120px) var(--pad-x);
  border-bottom: 1px solid var(--border-subtle);
  background: linear-gradient(180deg, var(--bg-base), #08080a);
}
.about-principles .container { max-width: var(--content-max); margin: 0 auto; }
.princ-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 1px;
  background: var(--border-subtle);
  border: 1px solid var(--border-subtle);
  margin-top: 24px;
}
.princ {
  background: var(--bg-base);
  padding: 40px 36px 44px;
  display: flex; flex-direction: column; gap: 16px;
  position: relative;
}
.princ .num {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.12em;
  color: var(--fg-muted);
}
.princ h3 {
  font-family: var(--font-display);
  font-weight: 500;
  font-size: 26px;
  line-height: 1.15;
  letter-spacing: -0.02em;
  margin: 0;
}
.princ p {
  font-size: 16px;
  line-height: 1.6;
  color: var(--fg-muted);
  margin: 0;
}
@media (max-width: 720px) {
  .princ-grid { grid-template-columns: 1fr; }
}

.about-founder {
  padding: clamp(80px, 9vw, 120px) var(--pad-x);
  border-bottom: 1px solid var(--border-subtle);
}
.about-founder .container { max-width: var(--content-max); margin: 0 auto; }
.founder-grid {
  display: grid;
  grid-template-columns: 1fr 1.2fr;
  gap: 80px;
  align-items: start;
}
.founder-meta .founder-name {
  font-family: var(--font-display);
  font-weight: 500;
  font-size: 40px;
  letter-spacing: -0.02em;
  margin: 12px 0 4px;
}
.founder-title {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.06em;
  color: var(--fg-muted);
  margin: 0 0 28px;
  text-transform: uppercase;
}
.founder-bullets {
  list-style: none;
  padding: 0;
  margin: 0 0 28px;
  border-top: 1px solid var(--border-subtle);
}
.founder-bullets li {
  font-size: 16px;
  padding: 14px 0;
  border-bottom: 1px solid var(--border-subtle);
  color: var(--fg-primary);
}
.founder-link { margin: 0; }
.founder-quote {
  background: var(--bg-elevated);
  border: 1px solid var(--border-subtle);
  padding: 48px 44px;
}
.founder-quote blockquote {
  font-family: 'Instrument Serif', Georgia, serif;
  font-style: italic;
  font-size: clamp(24px, 2.4vw, 32px);
  line-height: 1.35;
  color: var(--fg-primary);
  margin: 16px 0 24px;
  text-wrap: pretty;
}
.founder-attrib {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.06em;
  color: var(--fg-muted);
  margin: 0;
  text-transform: uppercase;
}
@media (max-width: 880px) {
  .founder-grid { grid-template-columns: 1fr; gap: 48px; }
}

.about-team {
  padding: clamp(80px, 9vw, 120px) var(--pad-x);
  border-bottom: 1px solid var(--border-subtle);
}
.about-team .container { max-width: var(--content-max); margin: 0 auto; }
.team-lead {
  font-family: var(--font-display);
  font-size: 20px;
  line-height: 1.55;
  color: var(--fg-muted);
  max-width: 760px;
  margin: 0 0 48px;
}
.team-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1px;
  background: var(--border-subtle);
  border: 1px solid var(--border-subtle);
}
.team-grid > div {
  background: var(--bg-base);
  padding: 28px 24px 32px;
}
.team-grid .k {
  font-family: var(--font-mono);
  font-size: 10px;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--fg-muted);
  margin: 0 0 10px;
}
.team-grid .v {
  font-family: var(--font-display);
  font-size: 17px;
  line-height: 1.35;
  color: var(--fg-primary);
  margin: 0;
}
@media (max-width: 880px) { .team-grid { grid-template-columns: repeat(2, 1fr); } }
@media (max-width: 520px) { .team-grid { grid-template-columns: 1fr; } }

/* support: final-cta with single h2 (no preceding caption) */
.final-cta h2 { text-wrap: balance; }


/* ============================================================
   WHITEPAPER (dark)
   ============================================================ */
.wp-hero {
  padding: clamp(80px, 10vw, 140px) var(--pad-x) clamp(60px, 6vw, 80px);
  border-bottom: 1px solid var(--border-subtle);
}
.wp-hero .container { margin: 0 auto; }
.wp-title {
  font-family: var(--font-display);
  font-weight: 500;
  font-size: clamp(48px, 8vw, 112px);
  line-height: 1;
  letter-spacing: -0.045em;
  margin: 16px 0 24px;
  text-wrap: balance;
}
.wp-subtitle {
  font-family: 'Instrument Serif', Georgia, serif;
  font-style: italic;
  font-size: clamp(22px, 2.4vw, 30px);
  line-height: 1.4;
  color: var(--fg-muted);
  max-width: 760px;
  margin: 0 0 32px;
  text-wrap: pretty;
}
.wp-authors {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--fg-muted);
  margin: 0 0 32px;
}
.wp-ctas { display: flex; gap: 12px; flex-wrap: wrap; }
.eyebrow .anchor-mini { display: inline-flex; align-items: center; gap: 6px; margin-right: 10px; color: var(--accent-anchor); }

.wp-abstract {
  padding: clamp(64px, 8vw, 100px) var(--pad-x);
  border-bottom: 1px solid var(--border-subtle);
}
.wp-lead {
  font-family: var(--font-display);
  font-size: 21px;
  line-height: 1.6;
  color: var(--fg-primary);
  margin: 0 0 24px;
  max-width: 760px;
  text-wrap: pretty;
}
.wp-lead:first-of-type { margin-top: 24px; }

.wp-toc-band {
  padding: clamp(64px, 8vw, 100px) var(--pad-x);
  border-bottom: 1px solid var(--border-subtle);
  background: var(--bg-elevated);
}
.wp-toc-list {
  list-style: none;
  padding: 0;
  margin: 24px 0 0;
  border-top: 1px solid var(--border-subtle);
}
.wp-toc-list li {
  display: grid;
  grid-template-columns: 56px 1fr auto;
  gap: 24px;
  padding: 18px 0;
  border-bottom: 1px solid var(--border-subtle);
  align-items: baseline;
}
.wp-toc-list .num { font-family: var(--font-mono); font-size: 11px; color: var(--fg-muted); letter-spacing: 0.06em; }
.wp-toc-list .label { font-family: var(--font-display); font-size: 19px; color: var(--fg-primary); }
.wp-toc-list .pages { font-family: var(--font-mono); font-size: 11px; color: var(--fg-muted); letter-spacing: 0.06em; }

.wp-gate {
  padding: clamp(80px, 10vw, 140px) var(--pad-x);
  background: linear-gradient(180deg, var(--bg-base), #08080a);
}
.wp-gate-grid {
  display: grid;
  grid-template-columns: 1.1fr 1fr;
  gap: 80px;
  align-items: start;
}
.wp-gate-grid h2 {
  font-family: var(--font-display);
  font-weight: 500;
  font-size: clamp(36px, 4.5vw, 56px);
  line-height: 1.05;
  letter-spacing: -0.03em;
  margin: 12px 0 24px;
  text-wrap: balance;
}
.wp-gate-grid > div > p {
  font-size: 17px; line-height: 1.65; color: var(--fg-muted);
  max-width: 540px;
}
.wp-gate-list {
  list-style: none; padding: 0; margin: 32px 0 0;
  border-top: 1px solid var(--border-subtle);
}
.wp-gate-list li {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.04em;
  color: var(--fg-primary);
  padding: 14px 0;
  border-bottom: 1px solid var(--border-subtle);
  position: relative;
  padding-left: 22px;
}
.wp-gate-list li::before {
  content: ""; position: absolute; left: 0; top: 21px;
  width: 6px; height: 6px;
  background: var(--accent-signal);
  border-radius: 50%;
}
@media (max-width: 880px) {
  .wp-gate-grid { grid-template-columns: 1fr; gap: 48px; }
}
.modal--dark { background: var(--bg-elevated); color: var(--fg-primary); border: 1px solid var(--border-subtle); }
.modal--dark h3 { color: var(--fg-primary); }
.modal--dark .modal-tab { border-color: var(--border-subtle); color: var(--fg-muted); }
.modal--dark .modal-tab.is-active { background: var(--fg-primary); color: var(--bg-base); border-color: var(--fg-primary); }
.modal--dark pre { background: var(--bg-base); color: var(--fg-primary); border: 1px solid var(--border-subtle); }
.modal--dark .modal-close { color: var(--fg-muted); }


/* ============================================================
   HOMEPAGE: two-col problem & beem support
   ============================================================ */
.problem-2col {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 64px;
  margin-top: 56px;
}
.problem-2col h3 {
  font-family: var(--font-display);
  font-weight: 500;
  font-size: clamp(24px, 2.4vw, 32px);
  line-height: 1.15;
  letter-spacing: -0.02em;
  margin: 8px 0 24px;
  text-wrap: balance;
}
.problem-row {
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 16px;
  padding: 18px 0;
  border-bottom: 1px solid var(--border-subtle);
  align-items: baseline;
}
.problem-row:first-of-type { border-top: 1px solid var(--border-subtle); }
.problem-row .l {
  font-size: 17px;
  color: var(--fg-primary);
}
.problem-row .r {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--fg-muted);
}
.problem-resolve {
  margin-top: 56px;
  padding: 28px 32px;
  border: 1px solid var(--accent-signal);
  background: rgba(207,255,80,0.04);
  display: grid;
  grid-template-columns: auto 1fr;
  gap: 24px;
  align-items: center;
}
.problem-resolve .lbl {
  font-family: var(--font-display);
  font-weight: 600;
  font-size: 22px;
  letter-spacing: -0.01em;
  color: var(--accent-signal);
}
.problem-resolve .body {
  font-size: 16px;
  line-height: 1.55;
  color: var(--fg-primary);
}
@media (max-width: 880px) {
  .problem-2col { grid-template-columns: 1fr; gap: 40px; }
  .problem-resolve { grid-template-columns: 1fr; gap: 8px; }
}

.beem-features {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1px;
  background: var(--border-subtle);
  border: 1px solid var(--border-subtle);
  margin: 24px 0 48px;
}
.beem-features .feat {
  background: var(--bg-base);
  padding: 28px 28px 32px;
}
.beem-features .lbl {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--fg-muted);
  margin: 0 0 12px;
}
.beem-features .body {
  font-family: var(--font-display);
  font-size: 17px;
  line-height: 1.45;
  color: var(--fg-primary);
}
.beem-italic {
  font-family: 'Instrument Serif', Georgia, serif;
  font-style: italic;
  font-size: clamp(24px, 2.4vw, 32px);
  line-height: 1.4;
  color: var(--fg-primary);
  margin: 56px 0 24px;
  max-width: 720px;
  text-wrap: balance;
}
.beem-foot {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.04em;
  color: var(--fg-muted);
  margin: 0;
}
.beem-foot a { color: var(--fg-primary); border-bottom: 1px solid var(--border-subtle); }
@media (max-width: 720px) {
  .beem-features { grid-template-columns: 1fr; }
}


/* ============================================================
   BitID Card Stack — Mastercard-grade payment cards
   ============================================================ */
.mc-stack-wrap {
  margin: 56px auto 0;
  width: min(620px, 92vw);
  display: flex; flex-direction: column; align-items: center;
  perspective: 1600px;
}
.mc-stack {
  position: relative;
  width: 540px;
  height: 340px;
  cursor: grab;
  outline: none;
  user-select: none;
  touch-action: pan-y;
}
.mc-stack:focus-visible { outline: 2px solid #E8872C; outline-offset: 6px; border-radius: 18px; }
.mc-stack.is-drag { cursor: grabbing; }

.mc-card {
  position: absolute;
  inset: 0;
  width: 540px;
  height: 340px;
  border-radius: 16px;
  border: 1px solid rgba(255,255,255,0.06);
  box-shadow: 0 32px 80px -16px rgba(0,0,0,0.7), 0 4px 16px rgba(0,0,0,0.4);
  padding: 24px;
  display: grid;
  grid-template-rows: auto 1fr auto auto;
  gap: 16px;
  transition: transform 360ms cubic-bezier(0.4, 0, 0.2, 1), opacity 360ms cubic-bezier(0.4, 0, 0.2, 1);
  transform-origin: 50% 50%;
  overflow: hidden;
  font-family: var(--font-display);
}
.mc-stack.is-drag .mc-card.is-active { transition: none; }

.mc-card.t-sovereign { border-color: rgba(0,0,0,0.08); box-shadow: 0 32px 80px -16px rgba(0,0,0,0.4), 0 4px 16px rgba(0,0,0,0.2); }

.mc-tex {
  position: absolute; inset: 0;
  pointer-events: none;
  border-radius: inherit;
}
.tex-verified {
  background-image:
    linear-gradient(rgba(255,255,255,0.04) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,255,255,0.04) 1px, transparent 1px);
  background-size: 32px 32px;
}
.tex-trusted {
  background: radial-gradient(ellipse at top left, rgba(255,255,255,0.10), transparent 60%);
}
.tex-anchored {
  background-image: repeating-linear-gradient(45deg, rgba(0,0,0,0.06) 0 1px, transparent 1px 14px);
}
.tex-sovereign {
  background: linear-gradient(115deg, transparent 30%, rgba(0,0,0,0.04) 32%, rgba(0,0,0,0.04) 36%, transparent 38%);
}

.mc-row { display: flex; align-items: center; justify-content: space-between; }
.mc-brand { font-family: var(--font-display); font-weight: 600; font-size: 14px; letter-spacing: -0.01em; }
.mc-tier-label { font-family: var(--font-mono); font-size: 11px; letter-spacing: 0.08em; text-transform: uppercase; opacity: 0.85; }

.mc-mid { display: flex; align-items: center; gap: 16px; }
.emv-chip { display: block; }
.cl-glyph { display: block; opacity: 0.85; }

.mc-number {
  font-family: var(--font-mono);
  font-weight: 500;
  font-size: 22px;
  letter-spacing: 0.12em;
}

.mc-bottom {
  display: grid;
  grid-template-columns: 1fr auto;
  align-items: end;
  gap: 16px;
}
.mc-bot-l { display: grid; grid-template-columns: auto auto; gap: 8px 36px; }
.mc-pair { display: flex; flex-direction: column; gap: 4px; }
.mc-pair .k { font-family: var(--font-mono); font-size: 9px; letter-spacing: 0.12em; text-transform: uppercase; opacity: 0.6; }
.mc-pair .v { font-family: var(--font-display); font-weight: 500; font-size: 13px; letter-spacing: 0.04em; text-transform: uppercase; }
.mc-bot-r { display: flex; flex-direction: column; align-items: flex-end; gap: 4px; }
.mc-net { font-family: var(--font-mono); font-size: 9px; letter-spacing: 0.12em; text-transform: uppercase; opacity: 0.6; }

/* idle pulse */
.mc-card.is-active.is-idle::after {
  content: ""; position: absolute; inset: -1px;
  border: 1px solid var(--accent);
  border-radius: inherit;
  animation: mc-idle 3.6s ease-in-out infinite;
  pointer-events: none;
}
@keyframes mc-idle {
  0%, 100% { opacity: 0; }
  30%, 70% { opacity: 0.7; }
}

/* dots */
.mc-dots { display: flex; gap: 12px; margin-top: 32px; }
.mc-dot {
  width: 8px; height: 8px;
  border-radius: 50%; border: none; padding: 0;
  opacity: 0.4; cursor: pointer;
  transition: opacity 200ms, transform 200ms;
}
.mc-dot.is-active { opacity: 1; transform: scale(1.4); }

/* meta line */
.mc-meta {
  margin-top: 20px;
  display: flex; gap: 16px; align-items: center;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}
.mc-meta-label { color: var(--fg-primary); font-weight: 500; }
.mc-meta-desc { color: var(--fg-muted); }

/* responsive */
@media (max-width: 600px) {
  .mc-stack, .mc-card { width: 320px; height: 202px; padding: 16px; gap: 8px; border-radius: 12px; }
  .mc-number { font-size: 14px; letter-spacing: 0.08em; }
  .mc-pair .v { font-size: 11px; }
  .mc-bot-l { gap: 4px 16px; }
  .emv-chip { width: 36px; height: 28px; }
  .cl-glyph { width: 14px; height: 18px; }
  .mc-meta { flex-direction: column; gap: 4px; text-align: center; }
}

@media (prefers-reduced-motion: reduce) {
  .mc-card { transition: opacity 160ms ease-out; }
  .mc-card.is-active.is-idle::after { animation: none; }
}

/* hide legacy card-family if still referenced */
.card-family { display: none !important; }

/* support: reuse .card-family-caption that pages-home.jsx renders */
.card-family-caption .hint { color: #71717A; }