/* ---------------------------------------------------------------
   BPMN Token Lab — design tokens
   Layout: top bar (brand + controls) > two-pane body (canvas | sidebar) > footer.
   ----------------------------------------------------------------*/
:root {
  --bg: #0b0f14;
  --panel: #121a24;
  --panel-2: #0f161f;
  --border: #223042;
  --text: #e7edf3;
  --text-dim: #8fa3b8;
  --accent: #43d9c8;
  --accent-ink: #06201c;
  --warn: #ff8a3d;
  --danger: #ff5470;
  --ok: #58e38f;
  --font-display: 'Space Grotesk', 'Segoe UI', sans-serif;
  --font-body: 'Inter', 'Segoe UI', sans-serif;
  --font-mono: 'JetBrains Mono', 'SFMono-Regular', Consolas, monospace;
}

* { box-sizing: border-box; }

html, body {
  height: 100%;
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font-family: var(--font-body);
}

body {
  display: flex;
  flex-direction: column;
  min-height: 100vh;
}

a { color: var(--accent); }

/* ---------------- top bar ---------------- */
.topbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  flex-wrap: wrap;
  padding: 14px 20px;
  background: var(--panel);
  border-bottom: 1px solid var(--border);
}

.brand { display: flex; align-items: center; gap: 12px; }

.brand-mark {
  width: 34px; height: 34px; border-radius: 9px;
  background: radial-gradient(circle at 35% 30%, var(--accent), #1a8c80 70%);
  box-shadow: 0 0 0 1px rgba(67, 217, 200, .35), 0 4px 14px rgba(67, 217, 200, .25);
  flex-shrink: 0;
}

.brand-text h1 {
  margin: 0;
  font-family: var(--font-display);
  font-size: 1.15rem;
  font-weight: 700;
  letter-spacing: .01em;
}

.brand-text p {
  margin: 2px 0 0;
  font-size: .8rem;
  color: var(--text-dim);
}

.topbar-controls { display: flex; align-items: center; gap: 18px; flex-wrap: wrap; }

.field { display: flex; flex-direction: column; gap: 4px; font-size: .72rem; color: var(--text-dim); }
.field span:first-child { text-transform: uppercase; letter-spacing: .06em; }

.field select {
  font-family: var(--font-body);
  font-size: .85rem;
  color: var(--text);
  background: var(--panel-2);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 6px 10px;
  min-width: 220px;
}

.speed-field { flex-direction: row; align-items: center; gap: 8px; }
.speed-field span:first-child { white-space: nowrap; }
#speed-range { accent-color: var(--accent); width: 110px; }
#speed-value { font-family: var(--font-mono); color: var(--text); min-width: 3.2em; }

/* ---------------- layout ---------------- */
.layout {
  flex: 1;
  display: grid;
  grid-template-columns: 1fr 340px;
  gap: 16px;
  padding: 16px 20px;
  min-height: 0;
}

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

.canvas-wrap {
  position: relative;
  min-height: 420px;
  background:
    linear-gradient(var(--panel-2), var(--panel-2)) padding-box,
    radial-gradient(circle at 1px 1px, rgba(143, 163, 184, .18) 1px, transparent 0) 0 0 / 22px 22px;
  border: 1px solid var(--border);
  border-radius: 14px;
  overflow: hidden;
}

#canvas { position: absolute; inset: 0; }

/* bpmn-js base canvas should stay transparent so our dotted backdrop shows through */
#canvas .djs-container svg { background: transparent !important; }

.canvas-toolbar {
  position: absolute;
  left: 14px;
  bottom: 14px;
  display: flex;
  align-items: center;
  gap: 10px;
  z-index: 5;
}

.token-count {
  font-family: var(--font-mono);
  font-size: .76rem;
  color: var(--text-dim);
  background: rgba(18, 26, 36, .85);
  border: 1px solid var(--border);
  padding: 6px 10px;
  border-radius: 999px;
}

.legend {
  position: absolute;
  right: 14px;
  top: 14px;
  display: flex;
  align-items: center;
  gap: 12px;
  background: rgba(18, 26, 36, .85);
  border: 1px solid var(--border);
  border-radius: 999px;
  padding: 7px 14px;
  font-size: .74rem;
  color: var(--text-dim);
  z-index: 5;
  backdrop-filter: blur(4px);
}

.legend-title { font-weight: 600; color: var(--text); margin-right: 2px; }
.legend-item { display: flex; align-items: center; gap: 6px; white-space: nowrap; }

.dot { width: 9px; height: 9px; border-radius: 50%; display: inline-block; }
.dot-active { background: var(--accent); box-shadow: 0 0 0 3px rgba(67, 217, 200, .25); }
.dot-wait { background: var(--warn); box-shadow: 0 0 0 3px rgba(255, 138, 61, .25); }
.dot-auto { background: #4cc9f0; box-shadow: 0 0 0 3px rgba(76, 201, 240, .25); }
.dot-stuck { background: var(--danger); box-shadow: 0 0 0 3px rgba(255, 84, 112, .25); }

/* ---------------- buttons ---------------- */
.btn {
  font-family: var(--font-body);
  font-weight: 600;
  font-size: .82rem;
  border-radius: 9px;
  padding: 9px 14px;
  border: 1px solid var(--border);
  background: var(--panel);
  color: var(--text);
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  gap: 7px;
  transition: transform .12s ease, border-color .12s ease, background .12s ease;
}
.btn:hover { transform: translateY(-1px); border-color: var(--accent); }
.btn:active { transform: translateY(0); }

.btn-primary { background: var(--accent); color: var(--accent-ink); border-color: var(--accent); }
.btn-primary:hover { filter: brightness(1.08); }
.btn-ghost { background: transparent; }

.btn-text {
  background: none; border: none; color: var(--text-dim);
  font-size: .76rem; cursor: pointer; text-decoration: underline;
  text-underline-offset: 2px;
}
.btn-text:hover { color: var(--text); }

/* ---------------- sidebar ---------------- */
.sidebar { display: flex; flex-direction: column; gap: 16px; min-height: 0; }

.panel {
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: 14px;
  padding: 16px;
}

.panel h2 {
  margin: 0 0 8px;
  font-family: var(--font-display);
  font-size: .95rem;
  letter-spacing: .01em;
}

.muted { color: var(--text-dim); font-size: .82rem; margin: 0 0 10px; }

#concept-list {
  margin: 0; padding-left: 18px;
  font-size: .85rem; line-height: 1.5;
  color: var(--text);
}
#concept-list li { margin-bottom: 8px; }
#concept-list li::marker { color: var(--accent); }

.log-panel { flex: 1; display: flex; flex-direction: column; min-height: 220px; }
.log-header { display: flex; align-items: center; justify-content: space-between; margin-bottom: 4px; }
.log-header h2 { margin: 0; }

.log-list {
  flex: 1;
  overflow-y: auto;
  margin: 8px 0 0;
  padding: 0;
  list-style: none;
  font-family: var(--font-mono);
  font-size: .76rem;
  line-height: 1.5;
  display: flex;
  flex-direction: column;
  gap: 2px;
}

.tl-log-item { display: flex; gap: 8px; padding: 4px 6px; border-radius: 6px; }
.tl-log-item:nth-child(odd) { background: rgba(255, 255, 255, .02); }
.tl-log-step { color: var(--text-dim); flex-shrink: 0; }
.tl-log-text { color: var(--text); }
.tl-log-wait .tl-log-text { color: var(--warn); }
.tl-log-warn .tl-log-text { color: var(--danger); }
.tl-log-end .tl-log-text { color: var(--ok); }
.tl-log-auto .tl-log-text { color: #4cc9f0; }

/* ---------------- footer ---------------- */
.foot {
  text-align: center;
  font-size: .76rem;
  color: var(--text-dim);
  padding: 12px 20px 18px;
}

/* ---------------- bpmn-js marker overrides (token state on nodes) ---------------- */
.tl-active .djs-visual > :first-child {
  stroke: var(--accent) !important;
  stroke-width: 2.5px !important;
  filter: drop-shadow(0 0 6px rgba(67, 217, 200, .55));
}

.tl-wait .djs-visual > :first-child {
  stroke: var(--warn) !important;
  stroke-width: 2.5px !important;
  animation: tl-pulse 1.1s ease-in-out infinite;
}

.tl-processing .djs-visual > :first-child {
  stroke: #4cc9f0 !important;
  stroke-width: 2.5px !important;
  stroke-dasharray: 6 4;
  animation: tl-dash 1s linear infinite;
}

@keyframes tl-pulse {
  0%, 100% { filter: drop-shadow(0 0 2px rgba(255, 138, 61, .4)); }
  50% { filter: drop-shadow(0 0 9px rgba(255, 138, 61, .85)); }
}

@keyframes tl-dash {
  to { stroke-dashoffset: -20; }
}

@media (prefers-reduced-motion: reduce) {
  .tl-wait .djs-visual > :first-child,
  .tl-processing .djs-visual > :first-child { animation: none; }
}

/* ---------------- token (custom SVG layer) ---------------- */
.tl-token { pointer-events: none; }
.tl-token-dot { stroke: rgba(0, 0, 0, .35); stroke-width: 1px; }
.tl-token-label {
  font-family: var(--font-mono);
  font-size: 9px;
  fill: #06131a;
  text-anchor: middle;
  dominant-baseline: central;
  font-weight: 700;
  pointer-events: none;
}

/* ---------------- decision / auto-processing overlays ---------------- */
.tl-overlay {
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 10px;
  min-width: 170px;
  max-width: 250px;
  transform: translateX(-50%);
  box-shadow: 0 10px 24px rgba(0, 0, 0, .45);
  display: flex;
  flex-direction: column;
  gap: 6px;
  font-family: var(--font-body);
}

.tl-overlay-title {
  font-size: .72rem;
  font-weight: 600;
  color: var(--text-dim);
  text-transform: uppercase;
  letter-spacing: .04em;
  margin-bottom: 2px;
}

.tl-btn {
  font-family: var(--font-body);
  font-size: .8rem;
  font-weight: 600;
  padding: 7px 10px;
  border-radius: 7px;
  border: 1px solid var(--border);
  background: var(--panel-2);
  color: var(--text);
  cursor: pointer;
  text-align: left;
}
.tl-btn:hover { border-color: var(--accent); }
.tl-btn-primary { background: var(--accent); color: var(--accent-ink); border-color: var(--accent); }
.tl-btn-warn { background: transparent; color: var(--warn); border-color: var(--warn); }
.tl-btn-branch { background: var(--panel-2); }

.tl-check-row {
  display: flex; align-items: center; gap: 8px;
  font-size: .8rem; padding: 4px 2px; cursor: pointer;
}
.tl-check-row input { accent-color: var(--accent); }

.tl-shake { animation: tl-shake .3s; }
@keyframes tl-shake {
  25% { transform: translateX(-50%) translateX(-4px); }
  75% { transform: translateX(-50%) translateX(4px); }
}

.tl-progress-track {
  width: 150px; height: 6px; border-radius: 4px;
  background: var(--panel-2); overflow: hidden;
  border: 1px solid var(--border);
}
.tl-progress-fill { width: 0; height: 100%; background: #4cc9f0; }

/* ---------------- responsive ---------------- */
@media (max-width: 560px) {
  .field select { min-width: 150px; }
  .topbar { padding: 12px 14px; }
  .layout { padding: 12px; }
  .legend { flex-wrap: wrap; row-gap: 6px; }
}


/* ---------------- node states added for the extended engine ---------------- */
.tl-incident .djs-visual > :first-child,
.tl-dead .djs-visual > :first-child {
  stroke: var(--danger) !important;
  stroke-width: 3px !important;
  animation: tl-alarm 1s ease-in-out infinite;
}
@keyframes tl-alarm {
  0%, 100% { filter: drop-shadow(0 0 2px rgba(255, 84, 112, .4)); }
  50% { filter: drop-shadow(0 0 10px rgba(255, 84, 112, .9)); }
}
@media (prefers-reduced-motion: reduce) {
  .tl-incident .djs-visual > :first-child,
  .tl-dead .djs-visual > :first-child { animation: none; }
}

/* token parked at a join: dashed ring, slightly transparent */
.tl-token-parked .tl-token-dot { stroke: #fff; stroke-dasharray: 3 2; stroke-width: 1.5px; opacity: .85; }

.spawn-buttons { display: flex; gap: 8px; flex-wrap: wrap; }

/* ---------------- node panels (rows) ---------------- */
.tl-panel { padding: 0; gap: 0; overflow: hidden; min-width: 190px; max-width: 230px; }
.tl-panel .tl-btn { font-size: .76rem; padding: 6px 9px; line-height: 1.25; }
.tl-panel .tl-overlay-title { font-size: .64rem; margin-bottom: 0; }
.tl-row { display: flex; flex-direction: column; gap: 5px; padding: 8px 9px; }
.tl-row + .tl-row { border-top: 1px solid var(--border); }
.tl-note {
  font-size: .74rem; line-height: 1.4; color: var(--text-dim);
  background: var(--panel-2); border-radius: 6px; padding: 6px 8px;
}
.tl-checks { display: flex; flex-direction: column; gap: 4px; }
.tl-form { display: flex; flex-direction: column; gap: 6px; }
.tl-field { display: flex; flex-direction: column; gap: 3px; font-size: .7rem; color: var(--text-dim); }
.tl-field select, .tl-field input {
  font-family: var(--font-body); font-size: .8rem; color: var(--text);
  background: var(--panel-2); border: 1px solid var(--border);
  border-radius: 6px; padding: 5px 7px; min-width: 0;
}
.tl-btn-danger { background: transparent; color: var(--danger); border-color: var(--danger); }

/* ---------------- toasts ---------------- */
.toasts {
  position: absolute; top: 14px; left: 14px; z-index: 6;
  display: flex; flex-direction: column; gap: 8px; max-width: 340px;
}
.tl-toast {
  font-size: .78rem; line-height: 1.4;
  background: rgba(18, 26, 36, .95); color: var(--text);
  border: 1px solid var(--border); border-left: 3px solid var(--accent);
  border-radius: 8px; padding: 9px 12px; cursor: pointer;
  box-shadow: 0 8px 20px rgba(0, 0, 0, .4);
}
.tl-toast-danger { border-left-color: var(--danger); }

/* ---------------- sidebar: broker + DMN ---------------- */
.broker-panel h3 {
  margin: 12px 0 4px; font-size: .72rem; text-transform: uppercase;
  letter-spacing: .05em; color: var(--text-dim);
}
.broker-list {
  margin: 0; padding: 0; list-style: none; font-family: var(--font-mono);
  font-size: .72rem; line-height: 1.5; display: flex; flex-direction: column; gap: 3px;
}
.broker-list li { background: var(--panel-2); border-radius: 6px; padding: 4px 7px; word-break: break-word; }
.broker-list .broker-empty { background: none; color: var(--text-dim); padding-left: 0; }
.broker-ttl { color: var(--warn); }
.broker-dim { color: var(--text-dim); }
.broker-form { display: flex; flex-direction: column; gap: 8px; margin-top: 12px; padding-top: 12px; border-top: 1px solid var(--border); }
.broker-form[hidden] { display: none; }

.dmn-scroll { overflow-x: auto; }
.dmn-table { border-collapse: collapse; font-size: .68rem; width: 100%; line-height: 1.3; }
.dmn-table th, .dmn-table td { border: 1px solid var(--border); padding: 3px 5px; text-align: left; vertical-align: top; }
.dmn-table th { background: var(--panel-2); font-weight: 600; color: var(--text-dim); }
.dmn-table .dmn-in { color: var(--text); }
.dmn-table th.dmn-out, .dmn-table td.dmn-out { color: var(--accent); }
.dmn-table .dmn-idx { color: var(--text-dim); text-align: center; }
.dmn-table tr.dmn-hit td { background: rgba(67, 217, 200, .16); font-weight: 600; }

/* node panels must float above the legend / toolbar, and the toolbar must not
   swallow clicks in its empty areas */
#canvas .djs-overlay-container { z-index: 8; }
.canvas-toolbar { pointer-events: none; }
.canvas-toolbar > * { pointer-events: auto; }