/* ==========================================================================
   NexumBit "Recursive Ledger" — foundations (tokens + component system)
   Loaded after styles.css/product.css. Never renames JS hooks.
   ========================================================================== */
:root {
  /* surface ramp (warm-neutral, tinted toward the bone white) */
  --rx-ink: #09090b;
  --rx-ink-1: #0e0e11;
  --rx-ink-2: #131317;
  --rx-ink-3: #1a1a1f;
  --rx-line: rgba(244, 241, 234, 0.08);
  --rx-line-2: rgba(244, 241, 234, 0.14);
  --rx-line-3: rgba(244, 241, 234, 0.24);
  /* text */
  --rx-bone: #f4f1ea;
  --rx-bone-2: rgba(244, 241, 234, 0.68);
  --rx-bone-3: rgba(244, 241, 234, 0.46);
  --rx-bone-4: rgba(244, 241, 234, 0.30);
  /* accents */
  --rx-sig: #ff8a1f;
  --rx-sig-hi: #ffa24d;
  --rx-sig-lo: #e5730a;
  --rx-sig-ink: #170a00;
  --rx-sig-wash: rgba(255, 138, 31, 0.10);
  --rx-vio: #8b6cff;
  --rx-vio-wash: rgba(139, 108, 255, 0.12);
  --rx-ok: #3ddc97;
  --rx-ok-wash: rgba(61, 220, 151, 0.10);
  --rx-warn: #f5c451;
  --rx-warn-wash: rgba(245, 196, 81, 0.10);
  --rx-bad: #ff6b6b;
  --rx-bad-wash: rgba(255, 107, 107, 0.10);
  /* type */
  --rx-sans: 'Inter', ui-sans-serif, system-ui, -apple-system, 'Segoe UI', sans-serif;
  --rx-mono: 'JetBrains Mono', ui-monospace, 'SFMono-Regular', Menlo, monospace;
  --rx-t-11: 11px; --rx-t-12: 12px; --rx-t-13: 13px; --rx-t-14: 14px; --rx-t-16: 16px;
  --rx-t-18: 18px; --rx-t-22: 22px; --rx-t-28: 28px; --rx-t-36: 36px; --rx-t-48: 48px;
  --rx-t-display: clamp(52px, 7vw, 104px);
  /* space (4pt) */
  --rx-s1: 4px; --rx-s2: 8px; --rx-s3: 12px; --rx-s4: 16px; --rx-s5: 20px; --rx-s6: 24px;
  --rx-s8: 32px; --rx-s10: 40px; --rx-s12: 48px; --rx-s16: 64px; --rx-s24: 96px; --rx-s32: 128px;
  /* radius — 3 tokens + pill */
  --rx-r-sm: 8px; --rx-r-md: 10px; --rx-r-lg: 16px; --rx-r-pill: 999px;
  /* elevation */
  --rx-hi: inset 0 1px 0 rgba(255, 255, 255, 0.05);
  --rx-sh-1: 0 1px 1px rgba(0,0,0,.24), 0 4px 10px -4px rgba(0,0,0,.4);
  --rx-sh-2: 0 1px 1px rgba(0,0,0,.2), 0 8px 16px -6px rgba(0,0,0,.4), 0 32px 64px -16px rgba(0,0,0,.6);
  /* motion */
  --rx-ease: cubic-bezier(.23, 1, .32, 1);
  --rx-ease-io: cubic-bezier(.77, 0, .175, 1);
  --rx-fast: 140ms; --rx-med: 220ms;
  --rx-wrap: 1200px;
  --rx-gutter: clamp(20px, 4vw, 40px);
}

html { -webkit-text-size-adjust: 100%; color-scheme: dark; }
button, a, summary { touch-action: manipulation; }
[class^="rx-"], [class*=" rx-"], [class^="rx-"] *, .toast, .wallet-btn, .lang-select { box-sizing: border-box; }
body { background: var(--rx-ink); color: var(--rx-bone); font-family: var(--rx-sans);
  -webkit-font-smoothing: antialiased; text-rendering: optimizeLegibility; }
::selection { background: rgba(255, 138, 31, .32); color: #fff; }
:where(input, textarea) { caret-color: var(--rx-sig); }
.main, .main:has(#view-docs.active) { background: var(--rx-ink); }
* { scrollbar-color: var(--rx-ink-3) transparent; }
.rx-num, .rx-mono { font-family: var(--rx-mono); font-variant-numeric: tabular-nums; letter-spacing: -0.01em; }
.rx-tab-nums { font-variant-numeric: tabular-nums; }

/* -------------------------------------------------------------- focus */
:where(button, a, summary, select, input, textarea, [role=button], [tabindex]):focus-visible {
  outline: 2px solid var(--rx-sig); outline-offset: 2px;
}

/* ============================================================ BUTTONS
   .rx-btn [--primary|--secondary|--ghost|--danger] [--sm|--lg] [--block]  */
.rx-btn {
  --h: 44px; --px: 18px; --fs: 15px;
  appearance: none; position: relative;
  display: inline-flex; align-items: center; justify-content: center; gap: 8px;
  height: var(--h); min-height: var(--h); padding: 0 var(--px);
  border: 1px solid transparent; border-radius: var(--rx-r-md);
  font: 600 var(--fs)/1 var(--rx-sans); letter-spacing: -0.011em; white-space: nowrap;
  text-decoration: none; cursor: pointer; user-select: none;
  transition: background-color var(--rx-fast) var(--rx-ease), border-color var(--rx-fast) var(--rx-ease),
              color var(--rx-fast), box-shadow var(--rx-fast), transform 150ms var(--rx-ease);
}
.rx-btn svg { width: 16px; height: 16px; flex: none; }
.rx-btn--sm { --h: 36px; --px: 14px; --fs: 14px; border-radius: var(--rx-r-sm); }
.rx-btn--lg { --h: 52px; --px: 24px; --fs: 16px; }
.rx-btn--block { display: flex; width: 100%; }
.rx-btn:active:not(:disabled) { transform: scale(.97); }
.rx-btn--primary {
  background: var(--rx-sig); color: var(--rx-sig-ink);
  box-shadow: inset 0 1px 0 rgba(255,255,255,.3), inset 0 -1px 0 rgba(0,0,0,.16), 0 6px 18px -10px rgba(255,138,31,.55);
}
.rx-btn--secondary { background: rgba(244,241,234,.04); color: var(--rx-bone); border-color: var(--rx-line-2); }
.rx-btn--ghost { background: transparent; color: var(--rx-bone-2); }
.rx-btn--bone { background: var(--rx-bone); color: var(--rx-ink); box-shadow: inset 0 -1px 0 rgba(0,0,0,.16); }
.rx-btn--danger { background: var(--rx-bad-wash); color: var(--rx-bad); border-color: rgba(255,107,107,.28); }
@media (hover: hover) {
  .rx-btn--primary:hover:not(:disabled) { background: var(--rx-sig-hi); }
  .rx-btn--secondary:hover:not(:disabled) { background: rgba(244,241,234,.07); border-color: var(--rx-line-3); }
  .rx-btn--ghost:hover:not(:disabled) { background: rgba(244,241,234,.05); color: var(--rx-bone); }
  .rx-btn--bone:hover:not(:disabled) { background: #fff; }
  .rx-btn--danger:hover:not(:disabled) { background: rgba(255,107,107,.16); }
  .rx-btn .rx-arrow { transition: transform var(--rx-med) var(--rx-ease); }
  .rx-btn:hover .rx-arrow { transform: translateX(2px); }
}
.rx-btn:disabled, .rx-btn[aria-disabled=true] {
  cursor: not-allowed; background: rgba(244,241,234,.06); color: var(--rx-bone-4);
  border-color: transparent; box-shadow: none;
}
.rx-btn.is-loading { color: transparent; pointer-events: none; }
.rx-btn.is-loading::after {
  content: ""; position: absolute; width: 16px; height: 16px; border-radius: 50%;
  border: 2px solid currentColor; border-color: var(--rx-sig-ink) transparent var(--rx-sig-ink) var(--rx-sig-ink);
  animation: rx-spin .7s linear infinite;
}
@keyframes rx-spin { to { transform: rotate(360deg); } }

/* ============================================================ INPUTS */
.rx-field { display: grid; gap: 8px; }
.rx-label { font: 500 13px/1.3 var(--rx-sans); color: var(--rx-bone-2); letter-spacing: -0.005em; }
.rx-hint { font: 400 13px/1.45 var(--rx-sans); color: var(--rx-bone-3); }
.rx-input {
  width: 100%; height: 44px; padding: 0 14px;
  background: var(--rx-ink-1); color: var(--rx-bone);
  border: 1px solid var(--rx-line-2); border-radius: var(--rx-r-md);
  font: 400 15px/1 var(--rx-sans);
  transition: border-color var(--rx-fast), box-shadow var(--rx-fast), background-color var(--rx-fast);
}
.rx-input::placeholder { color: var(--rx-bone-4); }
@media (hover: hover) { .rx-input:hover:not(:focus) { border-color: var(--rx-line-3); } }
.rx-input:focus { outline: none; border-color: rgba(255,138,31,.6); box-shadow: 0 0 0 3px rgba(255,138,31,.16); }
.rx-input[aria-invalid=true] { border-color: rgba(255,107,107,.6); }
.rx-input--mono { font-family: var(--rx-mono); font-size: 14px; letter-spacing: -0.01em; }

/* Amount field: big tabular number + unit/asset chip + meta row */
.rx-amount {
  display: grid; grid-template-columns: 1fr auto; align-items: center; gap: 4px 12px;
  padding: 16px 16px 14px; background: var(--rx-ink-1);
  border: 1px solid var(--rx-line); border-radius: var(--rx-r-lg);
  transition: border-color var(--rx-fast), box-shadow var(--rx-fast);
}
.rx-amount:focus-within { border-color: rgba(255,138,31,.5); box-shadow: 0 0 0 3px rgba(255,138,31,.12); }
.rx-amount__label { grid-column: 1 / -1; font: 500 13px/1 var(--rx-sans); color: var(--rx-bone-3); }
.rx-amount__input {
  min-width: 0; width: 100%; padding: 6px 0; border: 0; background: none; outline: none;
  font: 500 34px/1.1 var(--rx-sans); letter-spacing: -0.03em; color: var(--rx-bone);
  font-variant-numeric: tabular-nums;
}
.rx-amount__input::placeholder { color: var(--rx-bone-4); }
.rx-amount__meta { grid-column: 1 / -1; display: flex; justify-content: space-between; gap: 12px;
  font: 400 13px/1.2 var(--rx-sans); color: var(--rx-bone-3); font-variant-numeric: tabular-nums; }
.rx-amount__meta button { all: unset; cursor: pointer; color: var(--rx-sig); font-weight: 500; }

/* Asset chip (selectable) */
.rx-asset {
  display: inline-flex; align-items: center; gap: 8px; height: 40px; padding: 0 12px 0 6px;
  background: var(--rx-ink-3); border: 1px solid var(--rx-line); border-radius: var(--rx-r-pill);
  color: var(--rx-bone); font: 600 15px/1 var(--rx-sans); letter-spacing: -0.01em; cursor: pointer;
}
.rx-asset img { width: 28px; height: 28px; border-radius: 50%; display: block; }
.rx-asset svg { width: 14px; height: 14px; color: var(--rx-bone-3); }
@media (hover: hover) { .rx-asset:hover { border-color: var(--rx-line-3); } }

/* ============================================================ CHIPS / TAGS / STATUS */
.rx-chip {
  display: inline-flex; align-items: center; gap: 6px; height: 24px; padding: 0 9px;
  border-radius: var(--rx-r-pill); border: 1px solid var(--rx-line-2);
  font: 500 12px/1 var(--rx-sans); color: var(--rx-bone-2); white-space: nowrap;
}
.rx-chip::before { content: none; }
.rx-chip--dot::before { content: ""; width: 6px; height: 6px; border-radius: 50%; background: currentColor; }
.rx-chip--ok { color: var(--rx-ok); background: var(--rx-ok-wash); border-color: rgba(61,220,151,.22); }
.rx-chip--sig { color: var(--rx-sig); background: var(--rx-sig-wash); border-color: rgba(255,138,31,.24); }
.rx-chip--vio { color: #b4a3ff; background: var(--rx-vio-wash); border-color: rgba(139,108,255,.26); }
.rx-chip--warn { color: var(--rx-warn); background: var(--rx-warn-wash); border-color: rgba(245,196,81,.24); }
.rx-chip--bad { color: var(--rx-bad); background: var(--rx-bad-wash); border-color: rgba(255,107,107,.24); }
.rx-tag { font: 500 11px/1 var(--rx-mono); letter-spacing: .06em; text-transform: uppercase; color: var(--rx-bone-3); }

/* ============================================================ TABS (segmented + underline) */
.rx-seg { display: inline-flex; gap: 2px; padding: 3px; border-radius: var(--rx-r-md);
  background: var(--rx-ink-1); border: 1px solid var(--rx-line); }
.rx-seg > button {
  all: unset; box-sizing: border-box; height: 32px; padding: 0 14px; border-radius: 7px; cursor: pointer;
  font: 500 14px/32px var(--rx-sans); color: var(--rx-bone-3); letter-spacing: -0.006em;
  transition: color var(--rx-fast), background-color var(--rx-fast);
}
@media (hover: hover) { .rx-seg > button:hover { color: var(--rx-bone); } }
.rx-seg > button[aria-selected=true], .rx-seg > button.active {
  background: var(--rx-ink-3); color: var(--rx-bone); box-shadow: var(--rx-hi), 0 1px 2px rgba(0,0,0,.4);
}
.rx-seg > button:focus-visible { outline: 2px solid var(--rx-sig); outline-offset: 0; }
.rx-tabs { display: flex; gap: 20px; border-bottom: 1px solid var(--rx-line); }
.rx-tabs > button {
  all: unset; position: relative; cursor: pointer; padding: 10px 0 12px;
  font: 500 14px/1 var(--rx-sans); color: var(--rx-bone-3);
}
.rx-tabs > button[aria-selected=true] { color: var(--rx-bone); }
.rx-tabs > button[aria-selected=true]::after { content: ""; position: absolute; left: 0; right: 0; bottom: -1px; height: 2px; border-radius: 2px; background: var(--rx-sig); }

/* ============================================================ CARD / PANEL */
.rx-card { background: var(--rx-ink-1); border: 1px solid var(--rx-line); border-radius: var(--rx-r-lg); box-shadow: var(--rx-hi); }
.rx-card--raised { background: var(--rx-ink-2); box-shadow: var(--rx-hi), var(--rx-sh-2); }

/* ============================================================ TABLE */
.rx-table { width: 100%; border-collapse: collapse; font: 400 14px/1.3 var(--rx-sans); font-variant-numeric: tabular-nums; }
.rx-table th {
  height: 36px; padding: 0 16px; text-align: left; white-space: nowrap;
  font: 500 12px/1 var(--rx-sans); color: var(--rx-bone-3); border-bottom: 1px solid var(--rx-line);
}
.rx-table td { height: 52px; padding: 0 16px; border-bottom: 1px solid var(--rx-line); color: var(--rx-bone-2); white-space: nowrap; }
.rx-table td.is-strong { color: var(--rx-bone); font-weight: 500; }
.rx-table .is-num { text-align: right; font-family: var(--rx-mono); font-size: 13px; letter-spacing: -0.01em; }
.rx-table tbody tr { transition: background-color var(--rx-fast); }
@media (hover: hover) { .rx-table tbody tr:hover { background: rgba(244,241,234,.025); } }

/* ============================================================ TOAST (restyles app Toast DOM) */
.toast-container { gap: 8px; }
.toast {
  display: flex; align-items: flex-start; gap: 10px; min-width: 280px; max-width: 380px;
  padding: 12px 10px 12px 14px; border-radius: 12px;
  background: var(--rx-ink-2) !important; color: var(--rx-bone) !important;
  border: 1px solid var(--rx-line-2) !important; box-shadow: var(--rx-hi), var(--rx-sh-2);
  font: 500 14px/1.4 var(--rx-sans);
}
.toast-icon { flex: none; width: 18px; height: 18px; margin-top: 1px; }
.toast.success .toast-icon { color: var(--rx-ok); }
.toast.error .toast-icon { color: var(--rx-bad); }
.toast.warn .toast-icon { color: var(--rx-warn); }
.toast.info .toast-icon { color: var(--rx-bone-3); }
.toast-close {
  all: unset; flex: none; width: 24px; height: 24px; margin: -3px 0 0 auto; border-radius: 6px; cursor: pointer;
  text-align: center; line-height: 24px; font-size: 16px; color: var(--rx-bone-3);
}
@media (hover: hover) { .toast-close:hover { background: rgba(244,241,234,.06); color: var(--rx-bone); } }
.toast-tx-link { font-family: var(--rx-mono); font-size: 12px; color: var(--rx-sig); }

/* ============================================================ MODAL */
.rx-modal-scrim { position: fixed; inset: 0; z-index: 200; display: grid; place-items: center; padding: 20px;
  background: rgba(5,5,7,.72); backdrop-filter: blur(6px); }
.rx-modal { width: min(440px, 100%); padding: 24px; border-radius: 20px; background: var(--rx-ink-2);
  border: 1px solid var(--rx-line-2); box-shadow: var(--rx-hi), var(--rx-sh-2); }
.rx-modal h3 { margin: 0 0 6px; font: 600 20px/1.25 var(--rx-sans); letter-spacing: -0.02em; }
.rx-modal p { margin: 0; font: 400 14px/1.55 var(--rx-sans); color: var(--rx-bone-2); }
.rx-modal__actions { display: flex; gap: 8px; justify-content: flex-end; margin-top: 24px; }

/* ============================================================ EMPTY STATE */
.rx-empty { display: grid; gap: 6px; justify-items: start; padding: 28px 24px;
  border: 1px dashed var(--rx-line-2); border-radius: var(--rx-r-lg); }
.rx-empty b { font: 600 15px/1.3 var(--rx-sans); color: var(--rx-bone); }
.rx-empty span { font: 400 14px/1.5 var(--rx-sans); color: var(--rx-bone-3); max-width: 52ch; }
.rx-empty[data-state=syncing] b::before { content: ""; display: inline-block; width: 6px; height: 6px; margin: 0 10px 2px 0;
  border-radius: 50%; background: var(--rx-warn); animation: rx-pulse 1.6s ease-in-out infinite; }
@keyframes rx-pulse { 50% { opacity: .35; } }

/* ============================================================ HEADER / NAV / STATUS / WALLET */
.header { background: rgba(9,9,11,.78); border-bottom: 1px solid var(--rx-line);
  backdrop-filter: blur(16px) saturate(1.2); -webkit-backdrop-filter: blur(16px) saturate(1.2); }
.header-inner { height: 60px; min-height: 60px; gap: 28px; padding-inline: var(--rx-gutter); }
.brand-name, .brand-name span { color: var(--rx-bone); -webkit-text-fill-color: var(--rx-bone); font-weight: 600; letter-spacing: -0.02em; font-size: 15px; }
.nav { gap: 2px; padding: 0; margin-left: 4px; background: none; border: 0; }
.nav-btn {
  position: relative; min-height: 36px; padding: 0 12px; border: 0; border-radius: var(--rx-r-sm);
  background: none; color: var(--rx-bone-3); font: 500 14px/1 var(--rx-sans); letter-spacing: -0.006em;
  transition: color var(--rx-fast), background-color var(--rx-fast);
}
@media (hover: hover) { .nav-btn:hover { color: var(--rx-bone); background: rgba(244,241,234,.05); } }
.nav-btn.active { color: var(--rx-bone); background: none; box-shadow: none; border: 0; }
.nav-btn.active::after { content: ""; position: absolute; left: 12px; right: 12px; bottom: -12px; height: 2px; border-radius: 2px; background: var(--rx-sig); }
.header-actions { gap: 10px; }

.lang-switch__label { position: absolute; width: 1px; height: 1px; overflow: hidden; clip: rect(0 0 0 0); }
.lang-select {
  height: 36px; padding: 0 30px 0 12px; border-radius: var(--rx-r-sm);
  background: transparent url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 16 16'%3E%3Cpath d='M4.5 6.5 8 10l3.5-3.5' fill='none' stroke='%23f4f1ea' stroke-opacity='.5' stroke-width='1.5' stroke-linecap='round' stroke-linejoin='round'/%3E%3C/svg%3E") no-repeat right 8px center / 14px;
  border: 1px solid var(--rx-line); color: var(--rx-bone-2); font: 500 13px/1 var(--rx-sans);
  appearance: none; -webkit-appearance: none; cursor: pointer;
}
@media (hover: hover) { .lang-select:hover { border-color: var(--rx-line-3); color: var(--rx-bone); } }
.lang-select option { background: var(--rx-ink-2); color: var(--rx-bone); }

/* Connection indicator: dot + calm word. Never red text, never raw errors. */
.backend-status {
  display: inline-flex; align-items: center; gap: 8px; height: 28px; padding: 0 10px 0 8px;
  border: 0; border-radius: var(--rx-r-pill); background: none !important;
  font: 500 12px/1 var(--rx-sans) !important; letter-spacing: 0 !important; text-transform: none !important;
  color: var(--rx-bone-3) !important; box-shadow: none !important;
}
.backend-status::before {
  content: ""; width: 6px; height: 6px; border-radius: 50%; background: var(--rx-ok) !important;
  box-shadow: 0 0 0 3px rgba(61,220,151,.14) !important; animation: none;
}
.backend-status--offline::before { background: var(--rx-warn) !important; box-shadow: 0 0 0 3px rgba(245,196,81,.14) !important; animation: rx-pulse 1.6s ease-in-out infinite; }

/* Wallet button: disconnected = bone primary; connected = quiet address pill w/ green dot */
.wallet-btn {
  display: inline-flex; align-items: center; gap: 8px; min-height: 36px; height: 36px; padding: 0 14px 0 12px;
  border: 0; border-radius: var(--rx-r-sm); background: var(--rx-bone); color: var(--rx-ink);
  font: 600 14px/1 var(--rx-sans); letter-spacing: -0.01em; box-shadow: inset 0 -1px 0 rgba(0,0,0,.16);
  transition: background-color var(--rx-fast), transform 80ms;
}
.wallet-btn .wallet-btn-icon { color: currentColor; }
@media (hover: hover) { .wallet-btn:hover { background: #fff; box-shadow: inset 0 -1px 0 rgba(0,0,0,.16); } }
.wallet-btn:active { transform: scale(.97); }
.wallet-btn.connected { background: var(--rx-ink-2); color: var(--rx-bone); border: 1px solid var(--rx-line-2);
  font-family: var(--rx-mono); font-weight: 500; font-size: 13px; }
.wallet-btn.connected .wallet-btn-icon { color: var(--rx-ok); }
@media (hover: hover) { .wallet-btn.connected:hover { background: var(--rx-ink-3); border-color: var(--rx-line-3); } }
.hamburger span { background: var(--rx-bone-2); }

@media (max-width: 760px) {
  .header-inner { height: 56px; min-height: 56px; gap: 12px; }
  .header-actions > .lang-switch { display: none; }
  #mobile-menu .lang-switch { display: flex; padding: 12px 16px 4px; }
  #mobile-menu .lang-select { width: 100%; height: 44px; }
  .backend-status { padding: 0 4px; font-size: 0 !important; gap: 0; }
  .wallet-btn { padding: 0 10px; }
}
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { animation-duration: .01ms !important; animation-iteration-count: 1 !important; transition-duration: .01ms !important; }
}