/* RAREXT design system
   Tokens -> primitives -> layout -> surfaces -> components -> responsive */

:root {
  /* surfaces */
  --bg: #080a0e;
  --surface-0: #0b0e13;
  --surface-1: #0f131a;
  --surface-2: #141922;
  --surface-3: #1b212c;
  --line: #212a35;
  --line-soft: #171d25;
  --line-strong: #2d3846;

  /* text */
  --text: #e3eaf3;
  --text-dim: #9aa8b8;
  --text-muted: #6c7a8b;

  /* brand and semantics */
  --brand: #6ff0c4;
  --brand-soft: rgba(111, 240, 196, 0.1);
  --brand-line: rgba(111, 240, 196, 0.3);
  --brand-accent: #f7b46a;
  --accent: #f7b46a;
  --accent-soft: rgba(247, 180, 106, 0.12);
  --accent-line: rgba(247, 180, 106, 0.34);
  --danger: #ff7d90;
  --danger-soft: rgba(255, 125, 144, 0.1);
  --danger-line: rgba(255, 125, 144, 0.3);
  --info: #8fb8e8;
  --violet: #b79cf0;

  /* shape */
  --radius-sm: 7px;
  --radius: 10px;
  --radius-lg: 16px;
  --shadow-1: 0 1px 2px rgba(0, 0, 0, 0.4);
  --shadow-2: 0 10px 30px rgba(0, 0, 0, 0.35);
  --shadow-3: 0 30px 80px rgba(0, 0, 0, 0.55);

  --mono: ui-monospace, SFMono-Regular, "SF Mono", Menlo, Consolas, monospace;
  --sans: -apple-system, BlinkMacSystemFont, "Segoe UI", Inter, "Helvetica Neue",
    "Noto Sans", "Noto Sans Arabic", "Noto Sans CJK SC", sans-serif;

  --topbar-h: 60px;
  --panel-w: 280px;
  --panel-w-right: 344px;
}

* {
  box-sizing: border-box;
}

html,
body {
  margin: 0;
  height: 100%;
  background: var(--bg);
  color: var(--text);
  font-family: var(--sans);
  font-size: 14px;
  line-height: 1.5;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

button,
input,
select,
textarea {
  font: inherit;
  color: inherit;
}

button {
  cursor: pointer;
  border: 1px solid var(--line);
  background: var(--surface-2);
  border-radius: var(--radius-sm);
  padding: 7px 12px;
  transition:
    border-color 0.16s ease,
    background 0.16s ease,
    color 0.16s ease,
    transform 0.12s ease,
    box-shadow 0.16s ease;
}

button:hover {
  border-color: var(--line-strong);
  background: var(--surface-3);
}

button:active {
  transform: translateY(1px);
}

button.primary {
  background: var(--brand);
  border-color: var(--brand);
  color: #06110d;
  font-weight: 650;
  box-shadow: 0 6px 20px rgba(111, 240, 196, 0.14);
}

button.primary:hover {
  background: #85f6d0;
  border-color: #85f6d0;
}

button.ghost {
  background: transparent;
}

button.ghost:hover {
  background: var(--surface-2);
}

button.quiet {
  background: transparent;
  border-color: transparent;
  color: var(--text-muted);
  padding: 6px 9px;
  font-size: 12px;
}

button.quiet:hover {
  background: var(--surface-2);
  border-color: var(--line);
  color: var(--text);
}

button.slim {
  padding: 4px 8px;
  margin-top: 8px;
  font-size: 10px;
  font-family: var(--mono);
}

button.danger {
  color: var(--danger);
  border-color: var(--danger-line);
  background: var(--danger-soft);
}

button.danger:hover {
  background: rgba(255, 125, 144, 0.16);
  border-color: var(--danger);
}

.hidden {
  display: none !important;
}

/* ---------- mirror refusal ---------- */
/* Shown only when the workbench's startup verification refuses its bundle:
   the reads stay refused and the page carries this instead of a feed that
   would quietly serve tampered bytes. */

.mirror-refusal {
  margin: 14px 18px 0;
  padding: 14px 16px;
  border: 1px solid var(--danger-line);
  background: var(--danger-soft);
  border-radius: var(--radius);
  color: var(--text);
}

.mirror-refusal strong {
  display: block;
  margin-bottom: 6px;
  color: var(--danger);
}

.mirror-refusal p {
  margin: 0 0 10px;
  color: var(--text-dim);
  line-height: 1.5;
}

.mirror-refusal a {
  color: var(--danger);
  text-decoration: underline;
}

.mirror-refusal-roots {
  display: grid;
  gap: 6px;
}

.mirror-refusal-roots div {
  display: flex;
  min-width: 0;
  gap: 10px;
  align-items: baseline;
}

.mirror-refusal-roots span {
  flex: none;
  min-width: 118px;
  color: var(--text-muted);
  font-size: 10px;
  font-weight: 650;
  letter-spacing: 0.14em;
  text-transform: uppercase;
}

.mirror-refusal-roots code {
  word-break: break-all;
  font-family: var(--mono);
  font-size: 11px;
  color: var(--text);
}

:focus-visible {
  outline: 2px solid var(--brand);
  outline-offset: 2px;
  border-radius: 4px;
}

.muted {
  color: var(--text-muted);
  line-height: 1.55;
}

.eyebrow {
  margin: 0;
  color: var(--brand);
  font-family: var(--mono);
  font-size: 10px;
  font-weight: 600;
  letter-spacing: 0.16em;
  text-transform: uppercase;
}

.section-label {
  margin: 0 0 9px;
  color: var(--text-muted);
  font-size: 10px;
  font-weight: 650;
  letter-spacing: 0.14em;
  text-transform: uppercase;
}

/* ---------- topbar ---------- */

.topbar {
  display: flex;
  align-items: center;
  gap: 18px;
  height: var(--topbar-h);
  padding: 0 18px;
  border-bottom: 1px solid var(--line);
  background: rgba(8, 10, 14, 0.86);
  backdrop-filter: blur(12px);
  position: sticky;
  top: 0;
  z-index: 20;
}

.brand {
  display: flex;
  align-items: center;
  gap: 10px;
  text-decoration: none;
  color: inherit;
}

.brand-mark {
  display: block;
  width: 26px;
  height: 26px;
  color: var(--brand);
  filter: drop-shadow(0 0 10px rgba(111, 240, 196, 0.3));
}

.brand-mark svg {
  width: 100%;
  height: 100%;
  display: block;
}

.brand-text {
  display: flex;
  align-items: center;
  gap: 9px;
}

.brand-name {
  font-family: var(--mono);
  font-weight: 700;
  letter-spacing: 0.19em;
  font-size: 14px;
  color: var(--text);
}

.badge {
  display: inline-flex;
  align-items: center;
  gap: 5px;
  font-family: var(--mono);
  font-size: 9px;
  font-weight: 600;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--accent);
  border: 1px solid var(--accent-line);
  background: var(--accent-soft);
  border-radius: 999px;
  padding: 2px 8px 2px 6px;
}

.badge i {
  width: 5px;
  height: 5px;
  border-radius: 50%;
  background: var(--accent);
  box-shadow: 0 0 8px var(--accent);
}

.tabs {
  display: flex;
  gap: 2px;
  background: var(--surface-1);
  border: 1px solid var(--line);
  padding: 3px;
  border-radius: var(--radius);
}

.tab {
  border: 0;
  background: transparent;
  color: var(--text-muted);
  padding: 6px 16px;
  border-radius: 7px;
  font-family: var(--mono);
  font-size: 12px;
  letter-spacing: 0.03em;
}

a.tab {
  text-decoration: none;
  display: inline-flex;
  align-items: center;
}

.tab:hover {
  background: var(--surface-2);
  color: var(--text-dim);
}

.tab.active {
  background: var(--surface-3);
  color: var(--text);
  box-shadow: inset 0 0 0 1px var(--line-strong);
}

.topbar-extra {
  margin-left: auto;
  display: flex;
  align-items: center;
  gap: 12px;
}

.tagline {
  color: var(--text-muted);
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: 0.02em;
}

.lang {
  display: flex;
  align-items: center;
  gap: 7px;
  padding: 4px 6px 4px 9px;
  border: 1px solid var(--line);
  border-radius: var(--radius-sm);
  background: var(--surface-1);
  transition: border-color 0.16s ease, background 0.16s ease;
}

.lang:hover {
  border-color: var(--line-strong);
  background: var(--surface-2);
}

.lang-glyph {
  width: 14px;
  height: 14px;
  flex: 0 0 auto;
  fill: none;
  stroke: var(--text-muted);
  stroke-width: 1.25;
  stroke-linecap: round;
}

.lang select {
  width: auto;
  min-width: 92px;
  appearance: none;
  -webkit-appearance: none;
  background-color: transparent;
  background-image: linear-gradient(45deg, transparent 50%, var(--text-muted) 50%),
    linear-gradient(135deg, var(--text-muted) 50%, transparent 50%);
  background-position: calc(100% - 9px) calc(50% + 1px), calc(100% - 5px) calc(50% + 1px);
  background-size: 4px 4px, 4px 4px;
  background-repeat: no-repeat;
  border: 0;
  border-radius: 0;
  padding: 2px 16px 2px 2px;
  font-family: var(--mono);
  font-size: 11px;
  color: var(--text-dim);
  cursor: pointer;
  text-overflow: ellipsis;
}

.lang select:focus {
  box-shadow: none;
  border: 0;
}

.lang option {
  background: var(--surface-2);
  color: var(--text);
}

.help-button {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  background: transparent;
  color: var(--text-muted);
  font-size: 12px;
}

.help-button svg {
  width: 15px;
  height: 15px;
  fill: none;
  stroke: currentColor;
  stroke-width: 1.3;
  stroke-linecap: round;
}

.help-button:hover {
  color: var(--brand);
  border-color: var(--brand-line);
  background: var(--brand-soft);
}

/* ---------- layout ---------- */

main {
  height: calc(100vh - var(--topbar-h));
}

.view {
  height: 100%;
}

.workbench {
  display: grid;
  grid-template-columns: var(--panel-w) minmax(0, 1fr) var(--panel-w-right);
}

.panel {
  overflow-y: auto;
  overscroll-behavior: contain;
  padding: 18px 18px 28px;
  background: var(--surface-1);
  scrollbar-width: thin;
  scrollbar-color: var(--line-strong) transparent;
}

.panel::-webkit-scrollbar {
  width: 9px;
}

.panel::-webkit-scrollbar-thumb {
  background: var(--line);
  border-radius: 9px;
  border: 3px solid var(--surface-1);
}

.panel-left {
  border-right: 1px solid var(--line);
}

.panel-right {
  border-left: 1px solid var(--line);
}

.panel h2 {
  font-family: var(--mono);
  font-size: 10px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.15em;
  color: var(--text-muted);
  margin: 0 0 8px;
}

.panel-section + .panel-section {
  margin-top: 22px;
  border-top: 1px solid var(--line-soft);
  padding-top: 20px;
}

.section-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
  margin-bottom: 12px;
}

.section-head h2 {
  margin: 0;
}

.section-copy {
  margin: 9px 0 12px;
  color: var(--text-muted);
  font-size: 12px;
  line-height: 1.55;
}

/* ---------- challenge card ---------- */

.challenge {
  padding-bottom: 16px;
  border-bottom: 1px solid var(--line-soft);
}

.challenge-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
  margin-bottom: 10px;
}

.challenge-dots {
  display: flex;
  gap: 5px;
}

.challenge-dots button {
  width: 18px;
  height: 5px;
  padding: 0;
  border: 0;
  border-radius: 999px;
  background: var(--line-strong);
  transition: background 0.16s ease, width 0.16s ease;
}

.challenge-dots button:hover {
  background: var(--text-muted);
}

.challenge-dots button.active {
  width: 26px;
  background: var(--brand);
}

#task-select {
  width: 100%;
  background: var(--surface-2);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 9px 11px;
  font-size: 15px;
  font-weight: 600;
  letter-spacing: -0.01em;
  cursor: pointer;
  appearance: none;
  background-image: linear-gradient(45deg, transparent 50%, var(--text-muted) 50%),
    linear-gradient(135deg, var(--text-muted) 50%, transparent 50%);
  background-position: calc(100% - 18px) 50%, calc(100% - 13px) 50%;
  background-size: 5px 5px, 5px 5px;
  background-repeat: no-repeat;
}

.task-description {
  margin: 10px 0 0;
  color: var(--text-dim);
  font-size: 13px;
  line-height: 1.6;
}

.sponsored-list {
  margin-top: 14px;
  padding-top: 12px;
  border-top: 1px solid var(--line-soft);
}

.sponsored-list .section-label {
  margin: 0 0 8px;
}

.sponsored-list ul {
  display: grid;
  gap: 8px;
  margin: 0;
  padding: 0;
  list-style: none;
}

.sponsored-list li {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 8px;
  padding: 8px 9px;
  border: 1px solid var(--accent-line);
  border-radius: var(--radius-sm);
  background: var(--accent-soft);
}

.sponsored-copy {
  display: flex;
  flex-direction: column;
  gap: 2px;
  min-width: 0;
}

.sponsored-title {
  color: var(--text);
  font-size: 12px;
  font-weight: 700;
  overflow-wrap: anywhere;
}

.sponsored-meta {
  color: var(--text-muted);
  font-family: var(--mono);
  font-size: 9.5px;
}

.sponsored-list .tag {
  flex: 0 0 auto;
}

/* ---------- block palette ---------- */

.palette {
  padding: 16px 0;
  border-bottom: 1px solid var(--line-soft);
}

.palette-grid {
  display: grid;
  gap: 8px;
}

.block-card {
  display: flex;
  align-items: center;
  gap: 11px;
  width: 100%;
  padding: 10px 12px;
  text-align: left;
  background: var(--surface-2);
  border: 1px solid var(--line);
  border-radius: var(--radius);
}

.block-card:hover {
  background: var(--surface-3);
  border-color: var(--line-strong);
  transform: translateY(-1px);
}

.block-card[data-type="nand"] .block-glyph {
  color: var(--brand);
}

.block-card[data-type="latch"] .block-glyph {
  color: var(--violet);
}

.block-glyph {
  flex: 0 0 auto;
  display: grid;
  place-items: center;
  width: 34px;
  height: 30px;
  border-radius: 8px;
  background: var(--surface-1);
  border: 1px solid var(--line-soft);
}

.block-glyph svg {
  width: 26px;
  height: 19px;
  fill: none;
  stroke: currentColor;
  stroke-width: 1.5;
  stroke-linecap: round;
}

.block-text {
  display: flex;
  flex-direction: column;
  gap: 1px;
  min-width: 0;
}

.block-text strong {
  font-family: var(--mono);
  font-size: 12px;
  font-weight: 650;
  letter-spacing: 0.05em;
}

.block-text small {
  color: var(--text-muted);
  font-size: 11px;
}

.panel-actions {
  display: flex;
  gap: 4px;
  margin-top: 8px;
}

.part-help {
  margin: 12px 0 0;
  color: var(--text-muted);
  font-size: 11px;
  line-height: 1.5;
}

/* ---------- scorecard ---------- */

.scorecard {
  margin-top: 16px;
  padding: 14px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: linear-gradient(180deg, var(--surface-2), var(--surface-1));
}

.score-hero {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 10px;
  margin-bottom: 12px;
}

.score-label {
  display: block;
  color: var(--text-muted);
  font-size: 10px;
  font-weight: 600;
  letter-spacing: 0.14em;
  text-transform: uppercase;
}

.score-number {
  display: block;
  margin-top: 2px;
  font-family: var(--mono);
  font-size: 30px;
  font-weight: 600;
  line-height: 1.05;
  letter-spacing: -0.02em;
  color: var(--text);
  transition: color 0.2s ease;
}

.score-number.ok {
  color: var(--brand);
}

.score-number.bad {
  color: var(--danger);
}

.score-number.idle {
  color: var(--text-muted);
}

.meter {
  height: 5px;
  border-radius: 999px;
  background: var(--surface-3);
  overflow: hidden;
}

.meter-fill {
  height: 100%;
  width: 0;
  border-radius: 999px;
  background: var(--brand);
  transition: width 0.35s cubic-bezier(0.22, 1, 0.36, 1), background 0.2s ease;
}

.meter-fill.bad {
  background: var(--danger);
}

.meter-fill.idle {
  background: var(--line-strong);
}

.score-stats {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 10px;
  margin-top: 12px;
}

.score-stats > div {
  display: flex;
  flex-direction: column;
  gap: 2px;
}

.score-stats span {
  color: var(--text-muted);
  font-size: 10.5px;
}

.score-stats strong {
  font-family: var(--mono);
  font-size: 14px;
  font-weight: 600;
}

/* ---------- status pills ---------- */

.status-pill {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 3px 10px;
  border: 1px solid var(--line);
  border-radius: 999px;
  background: var(--surface-2);
  color: var(--text-muted);
  font-size: 11px;
  font-weight: 600;
  line-height: 1.4;
  white-space: nowrap;
}

.status-pill.ok {
  border-color: var(--brand-line);
  background: var(--brand-soft);
  color: var(--brand);
}

.status-pill.bad {
  border-color: var(--danger-line);
  background: var(--danger-soft);
  color: var(--danger);
}

.status-pill.idle {
  color: var(--text-muted);
}

.next-step {
  margin-top: 14px;
  padding: 13px 14px;
  border: 1px solid var(--brand-line);
  border-radius: var(--radius);
  background: var(--brand-soft);
}

.next-step strong {
  color: var(--brand);
  font-size: 13px;
}

.next-step p {
  margin: 3px 0 10px;
  color: var(--text-dim);
  font-size: 12px;
}

.next-step button {
  width: 100%;
}

.hint-button {
  width: 100%;
  margin-top: 14px;
}

.hint-box {
  margin: 8px 0 0;
  padding: 11px 13px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--surface-2);
  color: var(--text-dim);
  font-size: 12px;
  line-height: 1.6;
}

details.advanced {
  margin-top: 16px;
  border-top: 1px solid var(--line-soft);
  padding-top: 12px;
}

details.advanced > summary {
  color: var(--text-muted);
  cursor: pointer;
  font-size: 11px;
  list-style-position: inside;
  user-select: none;
  transition: color 0.16s ease;
}

details.advanced > summary:hover {
  color: var(--text-dim);
}

details.advanced > *:not(summary) {
  margin-top: 10px;
}

.hint {
  color: var(--text-muted);
  font-size: 12px;
  line-height: 1.6;
  border-left: 2px solid var(--line-strong);
  padding-left: 10px;
  margin: 16px 0;
}

details.advanced .hint {
  margin: 8px 0;
}

.source-import {
  margin-top: 14px;
  padding-top: 12px;
  border-top: 1px solid var(--line-soft);
}

.source-import .field + .field {
  margin-top: 10px;
}

.source-import .tools {
  margin-top: 10px;
}

/* ---------- forms ---------- */

.field {
  display: block;
  margin-bottom: 12px;
}

.field > span {
  display: block;
  color: var(--text-dim);
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 0.02em;
  margin-bottom: 6px;
}

.field > span em {
  color: var(--text-muted);
  font-style: normal;
  font-weight: 400;
}

input,
select,
textarea {
  width: 100%;
  background: var(--surface-2);
  border: 1px solid var(--line);
  border-radius: var(--radius-sm);
  padding: 8px 10px;
  outline: none;
  transition: border-color 0.16s ease, box-shadow 0.16s ease;
}

input::placeholder,
textarea::placeholder {
  color: var(--text-muted);
}

input:focus,
select:focus,
textarea:focus {
  border-color: var(--brand-line);
  box-shadow: 0 0 0 3px rgba(111, 240, 196, 0.08);
}

textarea {
  resize: vertical;
  min-height: 64px;
  line-height: 1.5;
}

.field-help {
  margin: -6px 0 12px;
  color: var(--text-muted);
  font-size: 11px;
  line-height: 1.45;
}

.tools {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 7px;
  margin: 12px 0;
}

.tools-secondary {
  margin-top: 8px;
}

/* ---------- canvas ---------- */

.canvas-wrap {
  position: relative;
  min-width: 0;
  background:
    radial-gradient(900px 520px at 50% 42%, rgba(111, 240, 196, 0.045), transparent 70%),
    radial-gradient(600px 400px at 82% 88%, rgba(247, 180, 106, 0.035), transparent 70%),
    var(--surface-0);
  overflow: hidden;
}

#canvas {
  width: 100%;
  height: 100%;
  display: block;
  touch-action: none;
}

svg text {
  font-family: var(--mono);
  user-select: none;
}

.grid-minor {
  stroke: #131922;
  stroke-width: 1;
}

.grid-major {
  stroke: #1b2430;
  stroke-width: 1;
}

.node {
  cursor: grab;
}

.node:active {
  cursor: grabbing;
}

.node .node-body {
  fill: #121821;
  stroke: var(--line-strong);
  stroke-width: 1.4;
  transition: stroke 0.16s ease;
}

.node .node-gloss {
  stroke: rgba(255, 255, 255, 0.055);
  stroke-width: 1;
}

.node .label {
  font-size: 12px;
  font-weight: 650;
  letter-spacing: 0.06em;
}

.node .id {
  fill: var(--text-muted);
  font-size: 10px;
}

.node .arity {
  fill: var(--text-muted);
  font-size: 9.5px;
  letter-spacing: 0.08em;
}

.node.input .node-body {
  stroke: rgba(143, 184, 232, 0.38);
}

.node.input .label {
  fill: var(--info);
}

.node.output .node-body {
  stroke: var(--accent-line);
}

.node.output .label {
  fill: var(--accent);
}

.node.nand .node-body {
  stroke: var(--brand-line);
}

.node.nand .label {
  fill: var(--brand);
}

.node.latch .node-body {
  stroke: rgba(183, 156, 240, 0.4);
}

.node.latch .label {
  fill: var(--violet);
}

.node.selected .node-body {
  stroke: var(--brand);
  stroke-width: 1.8;
  filter: drop-shadow(0 0 10px rgba(111, 240, 196, 0.22));
}

.port {
  fill: var(--surface-0);
  stroke: var(--line-strong);
  stroke-width: 2;
  cursor: crosshair;
  transition: fill 0.14s ease, stroke 0.14s ease, r 0.14s ease;
}

.port.in {
  stroke: #4a5b6e;
}

.port.out {
  fill: var(--brand);
  stroke: var(--surface-0);
  filter: drop-shadow(0 0 5px rgba(111, 240, 196, 0.45));
}

.port:hover {
  fill: var(--accent);
  stroke: var(--accent);
}

.port.pending {
  fill: var(--accent);
  stroke: var(--accent);
  filter: drop-shadow(0 0 8px rgba(247, 180, 106, 0.85));
}

.wire-under {
  fill: none;
  stroke: rgba(0, 0, 0, 0.45);
  stroke-width: 4.5;
  stroke-linecap: round;
}

.wire {
  fill: none;
  stroke: #46596e;
  stroke-width: 2;
  stroke-linecap: round;
}

.wire-ghost {
  fill: none;
  stroke: var(--accent);
  stroke-width: 2;
  stroke-linecap: round;
  stroke-dasharray: 5 5;
  opacity: 0.85;
  animation: dash 0.7s linear infinite;
}

@keyframes dash {
  to {
    stroke-dashoffset: -10;
  }
}

/* ---------- canvas overlays ---------- */

.canvas-controls {
  position: absolute;
  bottom: 16px;
  right: 16px;
  display: flex;
  align-items: center;
  gap: 2px;
  padding: 4px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: rgba(15, 19, 26, 0.88);
  backdrop-filter: blur(10px);
  box-shadow: var(--shadow-2);
}

.canvas-controls button {
  width: 30px;
  height: 28px;
  padding: 0;
  display: grid;
  place-items: center;
  background: transparent;
  border-color: transparent;
  color: var(--text-dim);
}

.canvas-controls button:hover {
  background: var(--surface-3);
  border-color: transparent;
  color: var(--text);
}

.canvas-controls button svg {
  width: 14px;
  height: 14px;
  fill: none;
  stroke: currentColor;
  stroke-width: 1.5;
  stroke-linecap: round;
}

.canvas-controls .control-wide {
  width: auto;
  padding: 0 10px;
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: 0.04em;
}

.control-divider {
  width: 1px;
  height: 16px;
  background: var(--line);
  margin: 0 3px;
}

.canvas-help {
  position: absolute;
  left: 16px;
  bottom: 16px;
  z-index: 6;
  display: flex;
  align-items: flex-start;
  gap: 12px;
  max-width: 320px;
  padding: 11px 13px;
  border: 1px solid var(--line-strong);
  border-radius: var(--radius);
  background: rgba(15, 19, 26, 0.92);
  color: var(--text-dim);
  box-shadow: var(--shadow-2);
  backdrop-filter: blur(10px);
  font-size: 12px;
  line-height: 1.5;
}

.canvas-help strong {
  display: block;
  color: var(--text);
  font-size: 12px;
  margin-bottom: 3px;
}

.canvas-help button {
  flex: 0 0 auto;
  width: 22px;
  height: 22px;
  padding: 0;
  border: 0;
  border-radius: 50%;
  background: transparent;
  color: var(--text-muted);
  font-size: 16px;
  line-height: 1;
}

.canvas-help button:hover {
  background: var(--surface-3);
  color: var(--text);
}

.remix {
  position: absolute;
  top: 14px;
  left: 14px;
  display: flex;
  align-items: center;
  gap: 8px;
  max-width: calc(100% - 160px);
  background: rgba(28, 24, 16, 0.94);
  border: 1px solid var(--accent-line);
  color: var(--accent);
  border-radius: 7px;
  padding: 7px 10px;
  font-family: var(--mono);
  font-size: 11px;
  white-space: nowrap;
}

.remix span {
  min-width: 0;
  overflow: hidden;
  text-overflow: ellipsis;
}

.remix button {
  flex: 0 0 auto;
  padding: 2px 7px;
  font-size: 10px;
  color: var(--accent);
  border-color: var(--accent-line);
  background: transparent;
}

/* ---------- checks table ---------- */

.table-wrap {
  border: 1px solid var(--line);
  border-radius: var(--radius);
  overflow: auto;
  max-height: 320px;
  background: var(--surface-2);
}

table {
  width: 100%;
  border-collapse: collapse;
  font-family: var(--mono);
  font-size: 11px;
}

th,
td {
  text-align: left;
  padding: 7px 9px;
  border-bottom: 1px solid var(--line-soft);
  white-space: nowrap;
}

th {
  position: sticky;
  top: 0;
  background: var(--surface-3);
  color: var(--text-muted);
  font-weight: 500;
  letter-spacing: 0.03em;
  text-transform: uppercase;
  font-size: 9px;
}

tr:last-child td {
  border-bottom: 0;
}

td.pass {
  color: var(--brand);
}

td.fail {
  color: var(--danger);
}

.table-wrap table {
  font-size: 9.5px;
}

.table-wrap th,
.table-wrap td {
  padding: 4px 5px;
}

.bit {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 20px;
  padding: 1px 3px;
  border: 1px solid var(--line);
  border-radius: 999px;
  font-size: 8.5px;
}

.bit.on {
  border-color: var(--brand-line);
  background: var(--brand-soft);
  color: var(--brand);
}

.bit.off,
.bit.unknown {
  color: var(--text-muted);
}

.table-wrap.bare {
  border: 0;
  background: transparent;
  overflow: visible;
  max-height: none;
}

.empty {
  border: 1px dashed var(--line-strong);
  border-radius: var(--radius);
  padding: 28px 20px;
  text-align: center;
  color: var(--text-muted);
  font-family: var(--mono);
  font-size: 12px;
  line-height: 1.6;
}

/* ---------- share ---------- */

.share-locked {
  display: flex;
  align-items: flex-start;
  gap: 12px;
  padding: 15px 16px;
  border: 1px dashed var(--line-strong);
  border-radius: var(--radius);
  background: var(--surface-2);
}

.share-locked h2 {
  margin-bottom: 2px;
}

.share-locked .section-copy {
  margin-bottom: 0;
}

.share-icon {
  flex: 0 0 auto;
  display: grid;
  place-items: center;
  width: 30px;
  height: 30px;
  border-radius: 8px;
  border: 1px solid var(--line);
  background: var(--surface-1);
}

.share-icon svg {
  width: 16px;
  height: 16px;
  fill: none;
  stroke: var(--text-muted);
  stroke-width: 1.4;
  stroke-linecap: round;
  stroke-linejoin: round;
}

.publish-section #publish {
  margin-top: 6px;
}

.publish-section .identity-status {
  margin-top: 10px;
}

.publish-section details.advanced {
  margin-top: 12px;
}

.identity-status {
  font-size: 11.5px;
  line-height: 1.5;
  color: var(--text-muted);
  margin: 10px 0 0;
  padding-left: 10px;
  border-left: 2px solid var(--line-strong);
  overflow-wrap: break-word;
}

#publish-status {
  font-family: var(--mono);
  font-size: 11px;
  word-break: break-word;
}

/* ---------- feed ---------- */

.feed {
  max-width: 980px;
  margin: 0 auto;
  padding: 28px 20px 60px;
  display: grid;
  gap: 14px;
}

.feed-head {
  max-width: 980px;
  margin: 0 auto;
  padding: 26px 20px 0;
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 20px;
}

.feed-head h1 {
  margin: 0 0 6px;
  font-size: 30px;
  font-weight: 700;
  letter-spacing: -0.025em;
}

.feed-head .muted {
  max-width: 560px;
  font-size: 14px;
}

.feed-actions {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
  justify-content: flex-end;
}

.feed-actions button {
  font-size: 12.5px;
  padding: 6px 12px;
}

.chain-status {
  font-size: 11px;
  color: var(--text-muted);
  margin: 8px 0 0;
}

.feed-more {
  max-width: 980px;
  margin: 0 auto;
  padding: 0 20px 60px;
  text-align: center;
}

.card {
  border: 1px solid var(--line);
  background: var(--surface-1);
  border-radius: var(--radius-lg);
  padding: 18px 20px;
  transition: border-color 0.18s ease, transform 0.18s ease, box-shadow 0.18s ease;
}

.card:hover {
  border-color: var(--line-strong);
  transform: translateY(-2px);
  box-shadow: var(--shadow-2);
}

.card-top {
  display: flex;
  justify-content: space-between;
  gap: 16px;
  align-items: flex-start;
}

.card-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  margin-bottom: 10px;
}

.tag {
  display: inline-flex;
  align-items: center;
  padding: 3px 8px;
  border: 1px solid var(--line);
  border-radius: 999px;
  background: var(--surface-2);
  color: var(--text-muted);
  font-size: 10px;
  font-weight: 600;
  letter-spacing: 0.01em;
}

.tag.good {
  border-color: var(--brand-line);
  background: var(--brand-soft);
  color: var(--brand);
}

.tag.bad {
  border-color: var(--danger-line);
  background: var(--danger-soft);
  color: var(--danger);
}

.tag.quiet {
  color: var(--text-muted);
}

.tag.app {
  font-family: var(--mono);
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--text-dim);
}

.tag.claim {
  font-family: var(--mono);
  font-size: 9.5px;
  color: var(--violet);
  border-color: rgba(183, 156, 240, 0.28);
  background: rgba(183, 156, 240, 0.07);
}

.tag.sponsored {
  font-family: var(--mono);
  font-size: 9px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--accent);
  border-color: var(--accent-line);
  background: var(--accent-soft);
}

.tag.source {
  border-color: rgba(143, 184, 232, 0.3);
  background: rgba(143, 184, 232, 0.08);
  color: #a9c9ea;
  text-decoration: none;
}

.tag.source:hover {
  border-color: rgba(143, 184, 232, 0.5);
  color: #d3e7fb;
}

.card h3 {
  margin: 0;
  font-size: 19px;
  font-weight: 700;
  line-height: 1.25;
  letter-spacing: -0.015em;
}

.card .meta {
  font-size: 12px;
  color: var(--text-muted);
  margin-top: 6px;
}

.card .meta b {
  color: var(--text);
  font-weight: 600;
}

.card .body {
  color: var(--text-dim);
  line-height: 1.55;
  margin: 12px 0 0;
  white-space: pre-wrap;
}

.card-summary {
  display: flex;
  flex-wrap: wrap;
  gap: 6px 16px;
  margin-top: 12px;
  color: var(--text-muted);
  font-size: 12px;
}

.card .actions {
  display: flex;
  gap: 8px;
  margin-top: 16px;
}

.card .actions button {
  font-size: 12.5px;
}

.card details.advanced {
  margin-top: 14px;
}

.card .hash {
  color: var(--text-muted);
  font-family: var(--mono);
  font-size: 10px;
  margin-top: 10px;
  word-break: break-all;
}

.card .stats {
  display: flex;
  gap: 14px;
  flex-wrap: wrap;
  font-family: var(--mono);
  font-size: 11px;
  color: var(--text-muted);
  margin-top: 8px;
}

.score-bubble {
  flex: 0 0 auto;
  display: flex;
  flex-direction: column;
  align-items: flex-end;
  min-width: 78px;
  padding: 9px 11px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--surface-0);
  line-height: 1;
}

.score-bubble strong {
  color: var(--brand);
  font-family: var(--mono);
  font-size: 19px;
}

.score-bubble span {
  margin-top: 5px;
  color: var(--text-muted);
  font-size: 9px;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

.empty-state {
  padding: 48px 24px;
  border: 1px dashed var(--line-strong);
  border-radius: var(--radius-lg);
  text-align: center;
}

.empty-state h3 {
  margin: 0;
  font-size: 18px;
}

.empty-state p {
  margin: 8px 0 18px;
  color: var(--text-muted);
  font-size: 13px;
}

.network-tools {
  max-width: 980px;
  margin: 0 auto 60px;
  padding: 0 20px;
  color: var(--text-muted);
  font-size: 12px;
}
.network-tools > summary {
  cursor: pointer;
  color: var(--text-muted);
  font-size: 11px;
  user-select: none;
}

.network-tools > summary:hover {
  color: var(--text-dim);
}

.network-tools p {
  margin: 10px 0;
  line-height: 1.5;
}

.adapter-list {
  display: grid;
  gap: 7px;
  margin-top: 12px;
  padding-top: 10px;
  border-top: 1px solid var(--line-soft);
}

.adapter-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
}

.adapter-row b {
  font-size: 12px;
  font-weight: 600;
}

.adapter-row .tag {
  flex: 0 0 auto;
}

.bem-balance {
  display: grid;
  gap: 6px;
  margin-top: 12px;
  padding-top: 10px;
  border-top: 1px solid var(--line-soft);
}

.bem-balance > label {
  font-size: 11px;
  letter-spacing: 0.04em;
  text-transform: uppercase;
}

.bem-row {
  display: flex;
  gap: 8px;
}

.bem-row input {
  flex: 1 1 auto;
  min-width: 0;
}

.bem-row button {
  flex: 0 0 auto;
}

/* ---------- toast ---------- */

.toast {
  position: fixed;
  bottom: 22px;
  left: 50%;
  transform: translateX(-50%);
  background: #111a1f;
  border: 1px solid var(--brand-line);
  color: var(--brand);
  border-radius: var(--radius);
  padding: 10px 16px;
  font-family: var(--mono);
  font-size: 12px;
  box-shadow: var(--shadow-3);
  z-index: 50;
  animation: toast-in 0.22s ease;
}

.toast.error {
  border-color: var(--danger-line);
  background: #1a1116;
  color: var(--danger);
}

@keyframes toast-in {
  from {
    opacity: 0;
    transform: translate(-50%, 8px);
  }
}

/* ---------- welcome ---------- */

.welcome {
  position: fixed;
  inset: 0;
  z-index: 100;
  display: grid;
  place-items: center;
  overflow: auto;
  padding: 24px;
  background: rgba(4, 6, 9, 0.8);
  backdrop-filter: blur(12px);
}

.welcome-card {
  position: relative;
  width: min(600px, 100%);
  max-height: calc(100vh - 48px);
  overflow: auto;
  padding: 32px;
  border: 1px solid var(--line-strong);
  border-radius: 20px;
  background: linear-gradient(180deg, #121821, #0d1219);
  box-shadow: var(--shadow-3);
}

.welcome-close {
  position: absolute;
  top: 14px;
  right: 14px;
  width: 32px;
  height: 32px;
  padding: 0;
  border: 0;
  border-radius: 50%;
  background: transparent;
  color: var(--text-muted);
  font-size: 20px;
  line-height: 1;
}

.welcome-close:hover {
  background: var(--surface-3);
  color: var(--text);
}

.welcome-mark {
  width: 40px;
  height: 40px;
  margin-bottom: 16px;
  color: var(--brand);
  filter: drop-shadow(0 0 16px rgba(111, 240, 196, 0.28));
}

.welcome-mark svg {
  width: 100%;
  height: 100%;
}

.welcome-card h1 {
  margin: 6px 0 12px;
  font-size: 32px;
  font-weight: 700;
  line-height: 1.15;
  letter-spacing: -0.03em;
}

.welcome-lede {
  margin: 0 0 22px;
  color: var(--text-dim);
  font-size: 14.5px;
  line-height: 1.6;
}

.protocol-note {
  margin: 0;
  color: var(--text-muted);
  font-family: var(--mono);
  font-size: 10.5px;
  letter-spacing: 0.02em;
}

.protocol-note.panel-note {
  margin-top: 18px;
  padding-top: 12px;
  border-top: 1px solid var(--line-soft);
}

.protocol-note.welcome-note {
  margin-top: 18px;
  padding-top: 14px;
  border-top: 1px solid var(--line-soft);
  text-align: center;
}

.steps {
  display: grid;
  gap: 14px;
  margin: 0 0 24px;
  padding: 0;
  list-style: none;
}

.steps li {
  display: flex;
  align-items: flex-start;
  gap: 12px;
}

.steps li > span {
  flex: 0 0 28px;
  display: grid;
  place-items: center;
  height: 28px;
  border: 1px solid var(--brand-line);
  border-radius: 50%;
  background: var(--brand-soft);
  color: var(--brand);
  font-family: var(--mono);
  font-size: 12px;
  font-weight: 700;
}

.steps strong {
  display: block;
  margin-bottom: 2px;
  font-size: 14px;
}

.steps p {
  margin: 0;
  color: var(--text-muted);
  font-size: 12.5px;
  line-height: 1.5;
}

.welcome-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

.welcome-actions button {
  padding: 9px 16px;
}

.welcome-glossary {
  margin-top: 20px;
  padding-top: 14px;
  border-top: 1px solid var(--line-soft);
}

.welcome-glossary > summary {
  color: var(--text-muted);
  cursor: pointer;
  font-size: 11px;
  user-select: none;
}

.welcome-glossary > summary:hover {
  color: var(--text-dim);
}

.welcome-glossary dl {
  display: grid;
  gap: 10px;
  margin: 12px 0 0;
}

.welcome-glossary dt {
  color: var(--text);
  font-size: 12px;
  font-weight: 600;
}

.welcome-glossary dd {
  margin: 2px 0 0;
  color: var(--text-muted);
  font-size: 12px;
  line-height: 1.5;
}

.board-button {
  display: none;
}

/* ---------- right to left ---------- */

[dir="rtl"] .topbar-extra {
  margin-right: auto;
  margin-left: 0;
}

[dir="rtl"] .panel-left {
  border-right: 0;
  border-left: 1px solid var(--line);
}

[dir="rtl"] .panel-right {
  border-left: 0;
  border-right: 1px solid var(--line);
}

[dir="rtl"] .remix {
  right: 14px;
  left: auto;
}

[dir="rtl"] .canvas-controls {
  left: 16px;
  right: auto;
}

[dir="rtl"] .canvas-help {
  right: 16px;
  left: auto;
}

[dir="rtl"] .welcome-close {
  left: 14px;
  right: auto;
}

[dir="rtl"] .hint,
[dir="rtl"] .identity-status {
  border-right: 2px solid var(--line-strong);
  border-left: 0;
  padding-right: 10px;
  padding-left: 0;
}

[dir="rtl"] th,
[dir="rtl"] td {
  text-align: right;
}

[dir="rtl"] .score-bubble {
  align-items: flex-start;
}

[dir="rtl"] .block-card {
  text-align: right;
}

[dir="rtl"] #canvas text {
  direction: ltr;
}

/* ---------- responsive ---------- */

@media (max-width: 1180px) {
  :root {
    --panel-w: 252px;
    --panel-w-right: 300px;
  }

  .tagline {
    display: none;
  }
}

@media (max-width: 1080px) {
  main {
    height: auto;
  }

  .workbench {
    grid-template-columns: 1fr;
  }

  .panel-left {
    border-right: 0;
    border-bottom: 1px solid var(--line);
  }

  .panel-right {
    border-left: 0;
    border-top: 1px solid var(--line);
  }

  .canvas-wrap {
    height: 540px;
    overflow: hidden;
    scroll-margin-top: 70px;
  }

  .board-button {
    display: block;
    width: 100%;
    margin-top: 8px;
  }

  .help-button span {
    display: none;
  }

  .help-button {
    width: 30px;
    height: 30px;
    padding: 0;
    justify-content: center;
  }
}

@media (max-width: 720px) {
  .topbar {
    flex-wrap: wrap;
    height: auto;
    gap: 8px;
    row-gap: 8px;
    padding: 8px 10px;
  }

  .brand {
    order: 1;
  }

  .topbar-extra {
    order: 2;
    margin-left: auto;
    gap: 8px;
  }

  .tabs {
    order: 3;
    width: 100%;
  }

  .tabs .tab {
    flex: 1;
  }

  .brand-text {
    gap: 7px;
  }

  .badge {
    font-size: 8.5px;
    padding: 2px 7px 2px 5px;
  }

  .brand-name {
    font-size: 13px;
    letter-spacing: 0.12em;
  }

  .tab {
    padding: 7px 11px;
    font-size: 11.5px;
  }

  .lang {
    padding: 3px 4px 3px 7px;
  }

  .lang select {
    width: 72px;
    min-width: 0;
    font-size: 10px;
  }

  .feed-head {
    flex-direction: column;
    gap: 12px;
  }

  .feed-head h1 {
    font-size: 26px;
  }

  .feed-actions {
    width: 100%;
    flex-direction: row;
  }

  .feed-actions button {
    flex: 1;
  }

  .card {
    padding: 16px;
  }

  .card h3 {
    font-size: 17.5px;
  }

  .card .actions {
    flex-wrap: wrap;
  }

  .card .actions button {
    flex: 1 1 auto;
  }

  .canvas-help {
    right: 12px;
    bottom: 12px;
    left: 12px;
    max-width: none;
  }

  .canvas-controls {
    right: 12px;
    bottom: 12px;
  }

  .welcome {
    padding: 14px;
  }

  .welcome-card {
    max-height: calc(100vh - 28px);
    padding: 24px 20px;
  }

  .welcome-card h1 {
    font-size: 27px;
  }

  .welcome-actions {
    flex-direction: column;
  }

  .welcome-actions button {
    width: 100%;
  }
}

@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation-duration: 0.001ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.001ms !important;
  }
}

/* ---------- rewards ---------- */

.rewards-total {
  margin: 6px 0 0;
  font-family: var(--mono);
  font-size: 34px;
  font-weight: 600;
  line-height: 1.1;
  color: var(--brand);
}

.rewards-board,
.rewards-orders {
  max-width: 980px;
  margin: 0 auto;
  padding: 26px 20px 0;
}

.rewards-orders {
  padding-bottom: 60px;
}

.rewards-actions {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(240px, 1fr));
  gap: 12px;
}

.reward-card {
  padding: 14px 16px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--surface-1);
  transition: border-color 0.16s ease, transform 0.16s ease;
}

.reward-card:hover {
  border-color: var(--line-strong);
  transform: translateY(-1px);
}

.reward-head {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 10px;
}

.reward-head strong {
  font-size: 13px;
  font-weight: 650;
}

.reward-value {
  font-family: var(--mono);
  font-size: 13px;
  color: var(--brand);
}

.reward-desc {
  margin: 6px 0 0;
  color: var(--text-muted);
  font-size: 12px;
  line-height: 1.5;
}

.reward-unit {
  margin: 8px 0 0;
  color: var(--text-muted);
  font-family: var(--mono);
  font-size: 10px;
  letter-spacing: 0.04em;
}

.reward-earned {
  margin: 8px 0 0;
  color: var(--brand);
  font-family: var(--mono);
  font-size: 11px;
}

.rewards-orders-list {
  display: grid;
  gap: 8px;
}

.reward-order {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  padding: 11px 14px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--surface-1);
}

.reward-order-id {
  display: block;
  margin-top: 2px;
  color: var(--text-muted);
  font-family: var(--mono);
  font-size: 10.5px;
}

.tag.pq {
  font-family: var(--mono);
  font-size: 9px;
  letter-spacing: 0.08em;
  color: #9ad4ff;
  border-color: rgba(154, 212, 255, 0.3);
  background: rgba(154, 212, 255, 0.08);
}

.tag.ai {
  font-family: var(--mono);
  font-size: 9px;
  letter-spacing: 0.08em;
  color: #c9a6ff;
  border-color: rgba(201, 166, 255, 0.3);
  background: rgba(201, 166, 255, 0.08);
}

/* ---------- market ---------- */

.market-grid {
  max-width: 1100px;
  margin: 0 auto;
  padding: 26px 20px 60px;
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 22px;
  align-items: start;
}

.market-column {
  min-width: 0;
}

.market-list {
  display: grid;
  gap: 8px;
}

.market-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  padding: 11px 14px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--surface-1);
}

.market-row strong {
  display: block;
  font-size: 13px;
  font-weight: 600;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.market-sub {
  display: block;
  margin-top: 2px;
  color: var(--text-muted);
  font-family: var(--mono);
  font-size: 10.5px;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}