/* FORSI Flows — implementação do DESIGN-SYSTEM.md
 *
 * O documento é a fonte de verdade; este arquivo é a projeção dele.
 * As referências (§2, §3…) apontam para a seção que justifica cada bloco.
 */

/* ══════════════════════════════════════════════════════ §2 Cor */

:root {
  /* petróleo — marca / ação / estado ativo */
  --petrol-50: #EFF7F9;
  --petrol-100: #D6ECF1;
  --petrol-200: #B0D8E3;
  --petrol-300: #7DBDCE;
  --petrol-400: #479AB2;
  --petrol-500: #2A7D96;
  --petrol-600: #1B647E;
  --petrol-700: #0F4C5C;
  --petrol-800: #103E4B;
  --petrol-900: #12333D;
  --petrol-950: #081F27;

  /* neutros levemente frios — nunca cinza puro (§2) */
  --ink-0: #FFFFFF;
  --ink-25: #FBFCFD;
  --ink-50: #F6F8F9;
  --ink-100: #EDF1F3;
  --ink-200: #DDE4E8;
  --ink-300: #C2CDD3;
  --ink-400: #94A4AD;
  --ink-500: #6B7C86;
  --ink-600: #4E5D66;
  --ink-700: #3A464D;
  --ink-800: #262F35;
  --ink-900: #171D21;
  --ink-950: #0D1114;

  /* semântica de execução — significado fixo, não reutilizar (§2) */
  --running: var(--petrol-500);
  --success: #12A594;
  --failed: #E5484D;
  --skipped: var(--ink-400);
  --queued: var(--ink-300);
  --warning: #F5A623;

  /* §4 motion */
  --instant: 80ms;
  --quick: 160ms;
  --base: 240ms;
  --slow: 400ms;
  --ease-out: cubic-bezier(0.16, 1, 0.3, 1);
  --ease-in-out: cubic-bezier(0.65, 0, 0.35, 1);

  /* §6 forma */
  --r-sm: 4px;
  --r-md: 8px;
  --r-lg: 12px;
  --r-xl: 16px;

  /* §6 sombras: spread negativo + tint petróleo, nunca preto puro */
  --shadow-1: 0 1px 2px -1px rgb(13 32 40 / 0.10);
  --shadow-2: 0 2px 8px -2px rgb(13 32 40 / 0.12);
  --shadow-3: 0 8px 24px -6px rgb(13 32 40 / 0.16);
  --shadow-4: 0 16px 48px -12px rgb(13 32 40 / 0.22);
}

/* Light é o padrão (white-first) */
:root,
[data-theme='light'] {
  --canvas: var(--ink-25);
  --surface: var(--ink-0);
  --surface-2: var(--ink-50);
  --raised: var(--ink-0);
  --raised-shadow: var(--shadow-2);
  --border: var(--ink-200);
  --border-soft: var(--ink-100);
  --fg: var(--ink-900);
  --fg-2: var(--ink-500);
  --fg-3: var(--ink-400);
  --accent: var(--petrol-700);
  --accent-hover: var(--petrol-600);
  --accent-soft: var(--petrol-50);
  --ghost: var(--ink-300);
  --on-accent: #FFFFFF;
  color-scheme: light;
}

/* Dark não é inversão, é recomposição (§2): o petróleo-700 some no escuro,
   então sobe pra 400; borda vira luz em vez de sombra. */
[data-theme='dark'] {
  --canvas: var(--ink-950);
  --surface: var(--ink-900);
  --surface-2: var(--ink-800);
  --raised: var(--ink-800);
  --raised-shadow: 0 2px 8px -2px rgb(0 0 0 / 0.5);
  --border: rgb(255 255 255 / 0.08);
  --border-soft: rgb(255 255 255 / 0.05);
  --fg: var(--ink-50);
  --fg-2: var(--ink-400);
  --fg-3: var(--ink-500);
  --accent: var(--petrol-400);
  --accent-hover: var(--petrol-300);
  --accent-soft: rgb(71 154 178 / 0.14);
  --ghost: var(--ink-700);
  --on-accent: var(--ink-950);
  --running: var(--petrol-400);
  color-scheme: dark;
}

/* §2: 200ms nas cores; NUNCA em transform — senão a tela treme na troca */
:root {
  transition: background-color var(--base) var(--ease-out);
}
body,
.surface,
.panel,
.card,
.node {
  transition:
    background-color var(--base) var(--ease-out),
    border-color var(--base) var(--ease-out),
    color var(--base) var(--ease-out);
}

/* ══════════════════════════════════════════════════════ §5 Tipografia */

*,
*::before,
*::after {
  box-sizing: border-box;
}

html,
body,
#root {
  height: 100%;
  margin: 0;
}

body {
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, 'Segoe UI', sans-serif;
  font-size: 13px; /* ferramenta densa, não site (§5) */
  line-height: 1.5;
  color: var(--fg);
  background: var(--canvas);
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

code,
pre,
.mono {
  font-family: 'JetBrains Mono', ui-monospace, SFMono-Regular, Menlo, monospace;
  font-size: 12px;
}

/* §5: sem isto o contador de ms do nó dança enquanto sobe */
.num,
.node-ms,
td.num,
.tabular {
  font-variant-numeric: tabular-nums;
}

h1 {
  font-size: 20px;
  font-weight: 600;
  margin: 0;
  letter-spacing: -0.01em;
}
h2 {
  font-size: 16px;
  font-weight: 600;
  margin: 0;
}
h3 {
  font-size: 13px;
  font-weight: 600;
  margin: 0;
}

/* ══════════════════════════════════════════════════════ §3 Liquid glass */

/* As quatro camadas. `saturate` é o que faz parecer vidro e não neblina (§3). */
.glass {
  background: color-mix(in oklab, var(--surface) 72%, transparent);
  backdrop-filter: blur(24px) saturate(180%);
  -webkit-backdrop-filter: blur(24px) saturate(180%);
  border: 1px solid color-mix(in oklab, var(--fg) 8%, transparent);
  border-top-color: color-mix(in oklab, var(--fg) 14%, transparent);
  box-shadow:
    0 8px 32px -8px rgb(0 0 0 / 0.18),
    inset 0 1px 0 0 rgb(255 255 255 / 0.10);
}

/* §3: degradar para superfície sólida durante execução — ninguém nota a troca,
   todo mundo nota o jank. */
.degraded .glass {
  background: var(--surface);
  backdrop-filter: none;
  -webkit-backdrop-filter: none;
}

/* ══════════════════════════════════════════════════════ base */

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

button {
  cursor: pointer;
  border: 1px solid var(--border);
  background: var(--surface);
  border-radius: var(--r-md);
  padding: 6px 12px;
  font-weight: 500;
  transition: background-color var(--instant) var(--ease-out),
    border-color var(--instant) var(--ease-out),
    transform var(--instant) var(--ease-out);
}
button:hover:not(:disabled) {
  background: var(--surface-2);
  border-color: var(--ink-300);
}
button:active:not(:disabled) {
  transform: translateY(0.5px);
}
button:disabled {
  opacity: 0.5;
  cursor: not-allowed;
}

button.primary {
  background: var(--accent);
  border-color: var(--accent);
  color: var(--on-accent);
}
button.primary:hover:not(:disabled) {
  background: var(--accent-hover);
  border-color: var(--accent-hover);
}

button.ghost {
  background: transparent;
  border-color: transparent;
  color: var(--fg-2);
}
button.ghost:hover:not(:disabled) {
  background: var(--surface-2);
  color: var(--fg);
}

button.danger {
  color: var(--failed);
  border-color: color-mix(in oklab, var(--failed) 30%, transparent);
}
button.danger:hover:not(:disabled) {
  background: color-mix(in oklab, var(--failed) 10%, transparent);
}

input,
select,
textarea {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--r-sm);
  padding: 6px 10px;
  width: 100%;
  transition: border-color var(--instant) var(--ease-out), box-shadow var(--instant)
    var(--ease-out);
}
input:focus,
select:focus,
textarea:focus {
  outline: none;
  border-color: var(--accent);
  box-shadow: 0 0 0 3px var(--accent-soft);
}

/* Acessibilidade: foco visível para quem navega por teclado. */
:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 2px;
}

a {
  color: var(--accent);
  text-decoration: none;
}

::selection {
  background: var(--accent-soft);
}

/* scrollbar discreta — parte do "desenhado em vez de default" */
* {
  scrollbar-width: thin;
  scrollbar-color: var(--ink-300) transparent;
}
*::-webkit-scrollbar {
  width: 10px;
  height: 10px;
}
*::-webkit-scrollbar-thumb {
  background: var(--ink-300);
  border-radius: 8px;
  border: 3px solid transparent;
  background-clip: content-box;
}
*::-webkit-scrollbar-track {
  background: transparent;
}

/* ══════════════════════════════════════════════════════ átomos */

.badge {
  display: inline-flex;
  align-items: center;
  gap: 5px;
  height: 20px;
  padding: 0 7px;
  border-radius: var(--r-sm);
  font-size: 11px;
  font-weight: 500;
  border: 1px solid var(--border);
  color: var(--fg-2);
  white-space: nowrap;
}
.badge .dot {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: currentColor;
  flex: none;
}

.badge.ok {
  color: var(--success);
  border-color: color-mix(in oklab, var(--success) 28%, transparent);
  background: color-mix(in oklab, var(--success) 8%, transparent);
}
.badge.failed {
  color: var(--failed);
  border-color: color-mix(in oklab, var(--failed) 28%, transparent);
  background: color-mix(in oklab, var(--failed) 8%, transparent);
}
.badge.running {
  color: var(--running);
  border-color: color-mix(in oklab, var(--running) 28%, transparent);
  background: color-mix(in oklab, var(--running) 8%, transparent);
}
.badge.queued,
.badge.sleeping,
.badge.waiting_event {
  color: var(--fg-3);
}
.badge.cancelled {
  color: var(--fg-3);
}

.spinner {
  width: 14px;
  height: 14px;
  flex: none;
  border: 2px solid var(--border);
  border-top-color: var(--accent);
  border-radius: 50%;
  animation: spin 700ms linear infinite; /* §4: linear só em progresso contínuo */
}
@keyframes spin {
  to {
    transform: rotate(360deg);
  }
}

.row {
  display: flex;
  align-items: center;
  gap: 8px;
}
.col {
  display: flex;
  flex-direction: column;
}
.grow {
  flex: 1;
  min-width: 0;
}
.muted {
  color: var(--fg-2);
}
.dim {
  color: var(--fg-3);
}
.truncate {
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.empty {
  display: grid;
  place-items: center;
  gap: 8px;
  padding: 56px 24px;
  color: var(--fg-3);
  text-align: center;
}

/* ══════════════════════════════════════════════════════ shell */

.shell {
  display: grid;
  grid-template-columns: auto 1fr;
  height: 100%;
}

/* §3: sidebar NUNCA é glass — não tem nada atrás para desfocar */
.sidebar {
  width: 236px;
  background: var(--surface);
  border-right: 1px solid var(--border);
  display: flex;
  flex-direction: column;
  overflow: hidden;
}
.sidebar-head {
  padding: 14px 14px 10px;
  display: flex;
  align-items: center;
  gap: 9px;
}
.logo {
  width: 26px;
  height: 26px;
  border-radius: 7px;
  flex: none;
  background: linear-gradient(140deg, var(--petrol-500), var(--petrol-800));
  display: grid;
  place-items: center;
  box-shadow: var(--shadow-1);
}
.sidebar-scroll {
  flex: 1;
  overflow-y: auto;
  padding: 4px 8px 8px;
}

.nav-section {
  font-size: 10px;
  font-weight: 600;
  letter-spacing: 0.07em;
  text-transform: uppercase;
  color: var(--fg-3);
  padding: 14px 6px 6px;
}

.nav-item {
  display: flex;
  align-items: center;
  gap: 9px;
  padding: 6px 8px;
  border-radius: var(--r-md);
  color: var(--fg-2);
  cursor: pointer;
  user-select: none;
  border: 1px solid transparent;
  transition: background-color var(--instant) var(--ease-out), color var(--instant)
    var(--ease-out);
}
.nav-item:hover {
  background: var(--surface-2);
  color: var(--fg);
}
.nav-item.active {
  background: var(--accent-soft);
  color: var(--accent);
  font-weight: 500;
}
.nav-item .icon {
  flex: none;
  opacity: 0.85;
}

.sidebar-foot {
  border-top: 1px solid var(--border);
  padding: 8px;
}

.main {
  display: flex;
  flex-direction: column;
  min-width: 0;
  overflow: hidden;
}

.topbar {
  height: 48px;
  flex: none;
  border-bottom: 1px solid var(--border);
  background: var(--surface);
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 0 14px;
}

.content {
  flex: 1;
  overflow: auto;
  min-height: 0;
}
.page {
  padding: 20px 22px;
  max-width: 1180px;
}
.page-head {
  display: flex;
  align-items: flex-start;
  gap: 12px;
  margin-bottom: 18px;
}

/* ══════════════════════════════════════════════════════ cards e tabelas */

.card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--r-lg);
}
.card-pad {
  padding: 14px 16px;
}

.list {
  display: flex;
  flex-direction: column;
}
/* §1.4: compacto onde há listagem */
.list-row {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 9px 14px;
  border-bottom: 1px solid var(--border-soft);
  cursor: pointer;
  transition: background-color var(--instant) var(--ease-out);
}
.list-row:last-child {
  border-bottom: none;
}
.list-row:hover {
  background: var(--surface-2);
}

table {
  width: 100%;
  border-collapse: collapse;
}
th {
  text-align: left;
  font-size: 11px;
  font-weight: 600;
  color: var(--fg-3);
  text-transform: uppercase;
  letter-spacing: 0.05em;
  padding: 8px 12px;
  border-bottom: 1px solid var(--border);
  position: sticky;
  top: 0;
  background: var(--surface);
  z-index: 1;
}
td {
  padding: 9px 12px;
  border-bottom: 1px solid var(--border-soft);
}
tbody tr {
  transition: background-color var(--instant) var(--ease-out);
}
tbody tr:hover {
  background: var(--surface-2);
}

.bar {
  height: 6px;
  border-radius: 3px;
  background: var(--accent);
  min-width: 2px;
  transition: width var(--base) var(--ease-out);
}
.bar-track {
  height: 6px;
  border-radius: 3px;
  background: var(--surface-2);
  overflow: hidden;
}

/* ══════════════════════════════════════════════════════ §7 canvas */

.canvas-wrap {
  position: relative;
  overflow: hidden;
  background: var(--canvas);
  /* grid de pontos: dá referência de movimento no pan, sem competir com os nós */
  background-image: radial-gradient(circle, var(--border) 1px, transparent 1px);
  background-size: 22px 22px;
  cursor: grab;
  height: 100%;
  touch-action: none;
}
.canvas-wrap.panning {
  cursor: grabbing;
}

/* §8: um grupo só, transform composited pela GPU. Zoom/pan não re-renderizam. */
.canvas-layer {
  position: absolute;
  inset: 0;
  transform-origin: 0 0;
  will-change: transform;
}

.canvas-edges {
  position: absolute;
  top: 0;
  left: 0;
  overflow: visible;
  pointer-events: none;
}

/* §7: aresta estática = o desenho parado, vindo do AST */
.edge {
  fill: none;
  stroke: var(--ghost);
  stroke-width: 1.5;
}
/* §7: dinâmica = o que a execução de fato percorreu */
.edge.taken {
  stroke: var(--success);
  stroke-width: 2;
}
.edge.active {
  stroke: var(--running);
  stroke-width: 2;
}

/* §4 momento 2: a aresta DESENHA quando o fluxo avança — causalidade, não estado */
.edge.draw {
  stroke-dasharray: var(--len);
  stroke-dashoffset: var(--len);
  animation: draw var(--slow) var(--ease-out) forwards;
}
@keyframes draw {
  to {
    stroke-dashoffset: 0;
  }
}

/* §7: label de aresta com halo recortando a linha — legível sem caixa opaca */
.edge-label {
  font-size: 10px;
  font-weight: 500;
  text-anchor: middle;
  dominant-baseline: middle;
  paint-order: stroke;
  stroke: var(--canvas);
  stroke-width: 3px;
  stroke-linejoin: round;
  fill: var(--fg-3);
}
.edge-label.taken {
  fill: var(--accent);
  font-weight: 600;
}

/* §7: o card é surface RAISED, não glass — é conteúdo do canvas, não flutua */
.node {
  position: absolute;
  width: 180px;
  background: var(--raised);
  border: 1px solid var(--border);
  border-radius: var(--r-lg);
  box-shadow: var(--raised-shadow);
  padding: 9px 11px;
  cursor: pointer;
  user-select: none;
  transition: border-color var(--quick) var(--ease-out),
    box-shadow var(--quick) var(--ease-out),
    transform var(--quick) var(--ease-out);
}
.node:hover {
  box-shadow: var(--shadow-3);
}
.node.selected {
  border-color: var(--accent);
  box-shadow: 0 0 0 3px var(--accent-soft), var(--shadow-3);
}

.node-title {
  display: flex;
  align-items: center;
  gap: 7px;
  font-weight: 500;
}
.node-title span {
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}
.node-sub {
  font-family: 'JetBrains Mono', ui-monospace, monospace;
  font-size: 10px;
  color: var(--fg-3);
  margin-top: 2px;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}
.node-foot {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 8px;
  margin-top: 8px;
  padding-top: 7px;
  border-top: 1px solid var(--border-soft);
  font-size: 10px;
  color: var(--fg-3);
}
.node-ms {
  font-size: 10px;
  color: var(--fg-2);
}

/* §7 estados */
.node.queued {
  opacity: 0.6;
}
.node.success {
  border-color: color-mix(in oklab, var(--success) 40%, transparent);
}
.node.failed {
  border-color: var(--failed);
  animation: shake 180ms var(--ease-in-out) 2;
}

/* §4 momento 1: a assinatura visual do produto */
.node.running {
  border-color: var(--running);
  animation: pulse 1.4s var(--ease-in-out) infinite;
}
@keyframes pulse {
  0%,
  100% {
    box-shadow: 0 0 0 0 color-mix(in oklab, var(--running) 40%, transparent),
      var(--raised-shadow);
  }
  50% {
    box-shadow: 0 0 0 7px color-mix(in oklab, var(--running) 0%, transparent),
      var(--raised-shadow);
  }
}

/* §4 momento 5: falha com shake curto — 2 ciclos, 6px */
@keyframes shake {
  0%,
  100% {
    transform: translateX(0);
  }
  25% {
    transform: translateX(-6px);
  }
  75% {
    transform: translateX(6px);
  }
}

/* §7: gateway — o CENTRO é o hub; arestas ligam nos vértices.
   Vértice a ±22px do centro ⇒ quadrado de 31px, não 44px. */
.gateway {
  position: absolute;
  width: 31px;
  height: 31px;
  transform: rotate(45deg);
  background: var(--raised);
  border: 1px solid var(--border);
  border-radius: 5px;
  box-shadow: var(--raised-shadow);
  cursor: pointer;
  transition: border-color var(--quick) var(--ease-out);
}
.gateway.taken {
  border-color: var(--accent);
}
.gateway-label {
  position: absolute;
  transform: translate(-50%, 0);
  white-space: nowrap;
  font-size: 10px;
  font-weight: 500;
  padding: 1px 7px;
  background: var(--canvas);
  border: 1px solid var(--border);
  border-radius: 999px;
  color: var(--fg-2);
  pointer-events: none;
}

.canvas-controls {
  position: absolute;
  left: 12px;
  bottom: 12px;
  display: flex;
  align-items: center;
  gap: 2px;
  padding: 3px;
  border-radius: var(--r-md);
  z-index: 5;
}
.canvas-controls button {
  width: 27px;
  height: 27px;
  padding: 0;
  display: grid;
  place-items: center;
  border: none;
  background: transparent;
  color: var(--fg-2);
  border-radius: var(--r-sm);
}
.canvas-controls button:hover {
  background: var(--surface-2);
  color: var(--fg);
}
.canvas-controls .zoom-level {
  min-width: 44px;
  text-align: center;
  font-size: 11px;
  color: var(--fg-2);
  font-variant-numeric: tabular-nums;
}

/* ══════════════════════════════════════════════════════ §9 painéis */

.exec-layout {
  --tl-h: 220px;
  --insp-w: 380px;
  display: grid;
  grid-template-rows: 1fr auto var(--tl-h);
  height: 100%;
  min-height: 0;
  position: relative;
}

/* §9: alvo de ~8px, maior que o traço visível */
.resizer-h {
  height: 8px;
  flex: none;
  cursor: ns-resize;
  display: grid;
  place-items: center;
  background: var(--canvas);
  z-index: 6;
}
.resizer-h .grip {
  width: 100%;
  height: 1px;
  background: var(--border);
  transition: background-color var(--instant) var(--ease-out), height var(--instant)
    var(--ease-out);
}
.resizer-h:hover .grip,
.resizer-h.dragging .grip {
  background: var(--accent);
  height: 3px;
}

.resizer-v {
  position: absolute;
  top: 0;
  bottom: 0;
  width: 8px;
  cursor: ew-resize;
  z-index: 12;
  display: grid;
  place-items: center;
}
.resizer-v .grip {
  width: 1px;
  height: 100%;
  background: transparent;
  transition: background-color var(--instant) var(--ease-out), width var(--instant)
    var(--ease-out);
}
.resizer-v:hover .grip,
.resizer-v.dragging .grip {
  background: var(--accent);
  width: 3px;
}

/* §3 + §9: o inspector FLUTUA sobre o canvas ⇒ é glass, e é o único painel
   que abre sozinho no erro */
.inspector {
  position: absolute;
  top: 10px;
  right: 10px;
  bottom: 10px;
  width: var(--insp-w);
  border-radius: var(--r-lg);
  display: flex;
  flex-direction: column;
  overflow: hidden;
  z-index: 10;
  animation: panel-in var(--base) var(--ease-out);
}
@keyframes panel-in {
  from {
    opacity: 0;
    transform: translateX(12px);
  }
  to {
    opacity: 1;
    transform: translateX(0);
  }
}
.inspector-head {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 10px 12px;
  border-bottom: 1px solid var(--border);
  flex: none;
}
.inspector-body {
  flex: 1;
  overflow: auto;
  padding: 12px;
}

.tabs {
  display: flex;
  gap: 2px;
  padding: 6px 8px 0;
  border-bottom: 1px solid var(--border);
  flex: none;
}
.tab {
  padding: 5px 10px;
  border-radius: var(--r-sm) var(--r-sm) 0 0;
  color: var(--fg-2);
  cursor: pointer;
  font-weight: 500;
  border: 1px solid transparent;
  border-bottom: none;
  position: relative;
  top: 1px;
  transition: color var(--instant) var(--ease-out), background-color var(--instant)
    var(--ease-out);
}
.tab:hover {
  color: var(--fg);
}
.tab.active {
  color: var(--accent);
  background: var(--surface);
  border-color: var(--border);
}

.timeline {
  overflow: auto;
  background: var(--surface);
  border-top: 1px solid var(--border);
}
.tl-row {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 4px 12px;
  border-bottom: 1px solid var(--border-soft);
  cursor: pointer;
  font-size: 12px;
  animation: tl-in var(--quick) var(--ease-out) backwards;
}
.tl-row:hover {
  background: var(--surface-2);
}
.tl-row.selected {
  background: var(--accent-soft);
}
/* §4 momento 4: entram por baixo, stagger de 30ms — ritmo, não avalanche */
@keyframes tl-in {
  from {
    opacity: 0;
    transform: translateY(6px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}
.tl-time {
  color: var(--fg-3);
  font-family: 'JetBrains Mono', monospace;
  font-size: 10px;
  flex: none;
}
.tl-type {
  flex: none;
  width: 96px;
  font-size: 10px;
  color: var(--fg-3);
  font-family: 'JetBrains Mono', monospace;
}

pre.json {
  background: var(--surface-2);
  border: 1px solid var(--border-soft);
  border-radius: var(--r-md);
  padding: 9px 11px;
  overflow: auto;
  max-height: 340px;
  margin: 0;
  white-space: pre-wrap;
  word-break: break-word;
}

/* ══════════════════════════════════════════════════════ editor */

.editor-wrap {
  height: 100%;
  overflow: auto;
  background: var(--surface);
}
.editor {
  display: grid;
  grid-template-columns: auto 1fr;
  font-family: 'JetBrains Mono', ui-monospace, monospace;
  font-size: 12px;
  line-height: 1.65;
  min-height: 100%;
}
.gutter {
  padding: 12px 10px 12px 14px;
  text-align: right;
  color: var(--fg-3);
  user-select: none;
  border-right: 1px solid var(--border-soft);
  background: var(--surface-2);
  font-variant-numeric: tabular-nums;
}
.code {
  padding: 12px 14px;
  white-space: pre;
  overflow-x: auto;
}
.code-line {
  display: block;
  min-height: 1.65em;
  border-radius: 3px;
}
/* §4 momento 3: o nó selecionado VIRA o bloco destacado no editor */
.code-line.highlight {
  background: var(--accent-soft);
  box-shadow: inset 3px 0 0 var(--accent);
  animation: morph-in var(--slow) var(--ease-out);
}
@keyframes morph-in {
  from {
    background: color-mix(in oklab, var(--accent) 30%, transparent);
  }
  to {
    background: var(--accent-soft);
  }
}
.gutter-line.highlight {
  color: var(--accent);
  font-weight: 600;
}

/* coloração de sintaxe — tons do petróleo, não arco-íris de template */
.tok-kw {
  color: var(--petrol-500);
  font-weight: 500;
}
.tok-str {
  color: var(--success);
}
.tok-num {
  color: var(--warning);
}
.tok-com {
  color: var(--fg-3);
  font-style: italic;
}
.tok-fn {
  color: var(--accent);
}
[data-theme='dark'] .tok-kw {
  color: var(--petrol-300);
}

/* ══════════════════════════════════════════════════════ toast · palette · modal */

.toasts {
  position: fixed;
  right: 14px;
  bottom: 14px;
  z-index: 100;
  display: flex;
  flex-direction: column;
  gap: 8px;
}
.toast {
  border-radius: var(--r-md);
  padding: 9px 13px;
  min-width: 240px;
  max-width: 400px;
  animation: toast-in var(--base) var(--ease-out);
}
@keyframes toast-in {
  from {
    opacity: 0;
    transform: translateY(10px) scale(0.97);
  }
  to {
    opacity: 1;
    transform: translateY(0) scale(1);
  }
}
.toast.error {
  border-left: 3px solid var(--failed);
}
.toast.ok {
  border-left: 3px solid var(--success);
}

.overlay {
  position: fixed;
  inset: 0;
  z-index: 90;
  background: rgb(13 32 40 / 0.28);
  backdrop-filter: blur(2px);
  animation: fade var(--quick) var(--ease-out);
}
@keyframes fade {
  from {
    opacity: 0;
  }
  to {
    opacity: 1;
  }
}

.palette {
  position: fixed;
  top: 14vh;
  left: 50%;
  transform: translateX(-50%);
  width: min(560px, 92vw);
  z-index: 91;
  border-radius: var(--r-xl);
  overflow: hidden;
  animation: palette-in var(--base) var(--ease-out);
}
@keyframes palette-in {
  from {
    opacity: 0;
    transform: translateX(-50%) translateY(-8px) scale(0.98);
  }
  to {
    opacity: 1;
    transform: translateX(-50%) translateY(0) scale(1);
  }
}
.palette input {
  border: none;
  background: transparent;
  border-radius: 0;
  padding: 14px 16px;
  font-size: 14px;
  border-bottom: 1px solid var(--border);
}
.palette input:focus {
  box-shadow: none;
  border-color: var(--border);
}
.palette-list {
  max-height: 320px;
  overflow-y: auto;
  padding: 5px;
}
.palette-item {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 8px 11px;
  border-radius: var(--r-md);
  cursor: pointer;
  color: var(--fg-2);
}
.palette-item.active {
  background: var(--accent-soft);
  color: var(--accent);
}
.kbd {
  font-family: 'JetBrains Mono', monospace;
  font-size: 10px;
  padding: 1px 5px;
  border: 1px solid var(--border);
  border-bottom-width: 2px;
  border-radius: var(--r-sm);
  color: var(--fg-3);
  background: var(--surface-2);
}

.modal {
  position: fixed;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  width: min(520px, 92vw);
  z-index: 91;
  border-radius: var(--r-xl);
  animation: palette-in var(--base) var(--ease-out);
}
.modal-head {
  padding: 14px 16px;
  border-bottom: 1px solid var(--border);
}
.modal-body {
  padding: 16px;
  display: flex;
  flex-direction: column;
  gap: 12px;
  max-height: 62vh;
  overflow-y: auto;
}
.modal-foot {
  padding: 12px 16px;
  border-top: 1px solid var(--border);
  display: flex;
  justify-content: flex-end;
  gap: 8px;
}

.field {
  display: flex;
  flex-direction: column;
  gap: 5px;
}
.field label {
  font-size: 11px;
  font-weight: 600;
  color: var(--fg-2);
}
.field .hint {
  font-size: 11px;
  color: var(--fg-3);
}

/* ══════════════════════════════════════════════════════ login */

.login-page {
  height: 100%;
  display: grid;
  place-items: center;
  background:
    radial-gradient(1000px 520px at 50% -8%, var(--accent-soft), transparent 62%),
    var(--canvas);
}
.login-card {
  width: min(370px, 90vw);
  padding: 26px;
  border-radius: var(--r-xl);
  display: flex;
  flex-direction: column;
  gap: 14px;
  animation: panel-up var(--slow) var(--ease-out);
}
@keyframes panel-up {
  from {
    opacity: 0;
    transform: translateY(12px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

/* ══════════════════════════════════════════════════════ §4 higiene */

/* Acessibilidade não é opcional (§4). O pulso do nó vira dot estático. */
@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }
  .node.running {
    animation: none;
    border-color: var(--running);
  }
  .node.running::after {
    content: '';
    position: absolute;
    top: 9px;
    right: 9px;
    width: 6px;
    height: 6px;
    border-radius: 50%;
    background: var(--running);
  }
  .edge.draw {
    stroke-dasharray: none;
    stroke-dashoffset: 0;
  }
}

/* ══════════════════════════════════════════════════════ árvore de pastas */

.tree {
  border: 1px solid var(--border);
  border-radius: var(--r-lg);
  background: var(--surface);
  overflow: hidden;
  min-height: 220px;
  transition: box-shadow var(--quick) var(--ease-out);
}
/* a raiz também é alvo de drop: arrastar para fora de toda pasta */
.tree.drop {
  box-shadow: inset 0 0 0 2px var(--accent);
}

.tree-row {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 6px 10px;
  border-bottom: 1px solid var(--border-soft);
  cursor: pointer;
  user-select: none;
  transition: background-color var(--instant) var(--ease-out);
}
.tree-row:hover {
  background: var(--surface-2);
}
.tree-row.folder {
  font-weight: 500;
}
/* o alvo do drop precisa ser óbvio no meio do arrasto, não sutil */
.tree-row.drop {
  background: var(--accent-soft);
  box-shadow: inset 0 0 0 1px var(--accent);
}
.tree-row[draggable='true']:active {
  cursor: grabbing;
}

.chevron {
  display: grid;
  place-items: center;
  width: 14px;
  flex: none;
  color: var(--fg-3);
  transition: transform var(--quick) var(--ease-out);
}

/* as ações só aparecem no hover: com 40 automações, 4 botões em cada linha
   viram 160 botões competindo com o conteúdo */
.tree-actions {
  display: flex;
  gap: 2px;
  opacity: 0;
  transition: opacity var(--instant);
}
.tree-row:hover .tree-actions {
  opacity: 1;
}
.tree-actions button {
  padding: 2px 5px;
  height: 22px;
}

/* touch não tem hover: sem isto as ações ficariam inalcançáveis no tablet */
@media (hover: none) {
  .tree-actions {
    opacity: 1;
  }
}

/* ══════════════════════════════════════════════════════ painel de IA */

/* §3: flutua sobre o canvas/editor ⇒ é glass, como o inspector */
.ai-panel {
  position: absolute;
  top: 10px;
  right: 10px;
  bottom: 10px;
  width: 400px;
  border-radius: var(--r-lg);
  display: flex;
  flex-direction: column;
  overflow: hidden;
  z-index: 11;
  animation: panel-in var(--base) var(--ease-out);
}

.ai-input {
  display: flex;
  gap: 6px;
  align-items: flex-end;
  padding: 10px;
  border-top: 1px solid var(--border);
  flex: none;
}
.ai-input textarea {
  resize: none;
  border-radius: var(--r-md);
  line-height: 1.5;
  font-family: inherit;
}
.ai-input button {
  height: 32px;
  width: 34px;
  padding: 0;
  flex: none;
}