.ev4x-flowbuilder-admin-wrap h1 {
  font-weight: 800;
  letter-spacing: -0.02em;
}
.ev4x-admin-intro {
  max-width: 900px;
  color: #334155;
}
.ev4x-flowbuilder-notice {
  padding: 18px 20px;
  border-radius: 14px;
  background: #fff7ed;
  border: 1px solid #fed7aa;
  color: #9a3412;
}
.ev4x-flowbuilder-app {
  --ev4x-bg: #08111f;
  --ev4x-panel: rgba(12, 23, 42, 0.94);
  --ev4x-panel-2: rgba(15, 32, 57, 0.95);
  --ev4x-line: rgba(148, 163, 184, 0.28);
  --ev4x-text: #eef6ff;
  --ev4x-muted: #a7b4c8;
  --ev4x-gold: #ffd166;
  --ev4x-blue: #58b7ff;
  --ev4x-green: #4ade80;
  --ev4x-red: #fb7185;
  --ev4x-purple: #c084fc;
  --ev4x-shadow: 0 18px 60px rgba(0, 0, 0, .26);
  margin: 20px 0;
  border-radius: 24px;
  overflow: hidden;
  background:
    radial-gradient(circle at 15% 20%, rgba(88, 183, 255, .24), transparent 34%),
    radial-gradient(circle at 82% 8%, rgba(255, 209, 102, .19), transparent 25%),
    radial-gradient(circle at 58% 92%, rgba(74, 222, 128, .15), transparent 30%),
    linear-gradient(135deg, #050816 0%, #0b1730 48%, #07111f 100%);
  color: var(--ev4x-text);
  box-shadow: var(--ev4x-shadow);
  border: 1px solid rgba(255, 255, 255, .1);
  font-family: system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
}
.ev4x-flowbuilder-app *,
.ev4x-flowbuilder-app *::before,
.ev4x-flowbuilder-app *::after {
  box-sizing: border-box;
}
.ev4x-flowbuilder-app button,
.ev4x-flowbuilder-app input,
.ev4x-flowbuilder-app select,
.ev4x-flowbuilder-app textarea {
  font-family: inherit;
}
.ev4x-fb-topbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 14px;
  padding: 16px;
  border-bottom: 1px solid var(--ev4x-line);
  background: rgba(2, 6, 23, .42);
  backdrop-filter: blur(10px);
}
.ev4x-fb-brand {
  display: flex;
  align-items: center;
  gap: 12px;
  min-width: 260px;
}
.ev4x-fb-logo {
  width: 46px;
  height: 46px;
  display: grid;
  place-items: center;
  border-radius: 16px;
  background: linear-gradient(135deg, rgba(255, 209, 102, .95), rgba(88, 183, 255, .8));
  color: #061225;
  font-size: 26px;
  box-shadow: 0 10px 30px rgba(88, 183, 255, .25);
}
.ev4x-fb-brand strong {
  display: block;
  font-size: 17px;
}
.ev4x-fb-brand span {
  display: block;
  color: var(--ev4x-muted);
  font-size: 12px;
  margin-top: 2px;
}
.ev4x-fb-actions {
  display: flex;
  align-items: center;
  gap: 8px;
  flex-wrap: wrap;
  justify-content: flex-end;
}
.ev4x-fb-title {
  width: 280px;
  max-width: 100%;
  border: 1px solid rgba(148, 163, 184, .35) !important;
  border-radius: 12px !important;
  padding: 9px 11px !important;
  background: rgba(15, 23, 42, .84) !important;
  color: var(--ev4x-text) !important;
}
.ev4x-flowbuilder-app .button,
.ev4x-flowbuilder-app button {
  border-radius: 12px;
}
.ev4x-flowbuilder-app .button-primary,
.ev4x-flowbuilder-app .ev4x-fb-run,
.ev4x-flowbuilder-app .ev4x-fb-python {
  background: linear-gradient(135deg, #0ea5e9, #2563eb) !important;
  color: #fff !important;
  border: 0 !important;
  box-shadow: 0 10px 24px rgba(37, 99, 235, .25);
}
.ev4x-fb-main {
  display: grid;
  grid-template-columns: 250px minmax(520px, 1fr) 330px;
  min-height: 720px;
}
.ev4x-fb-sidebar {
  padding: 14px;
  background: rgba(2, 6, 23, .28);
  border-right: 1px solid var(--ev4x-line);
  overflow: auto;
}
.ev4x-fb-right {
  border-right: 0;
  border-left: 1px solid var(--ev4x-line);
}
.ev4x-fb-sidebar h2,
.ev4x-fb-panel h2 {
  margin: 0 0 12px;
  font-size: 15px;
  color: #fff;
}
.ev4x-fb-left > button,
.ev4x-fb-helpbox button,
.ev4x-fb-output-actions button,
.ev4x-fb-canvas-toolbar button {
  width: 100%;
  min-height: 38px;
  margin: 0 0 8px;
  border: 1px solid rgba(148, 163, 184, .25);
  background: rgba(15, 23, 42, .74);
  color: var(--ev4x-text);
  cursor: pointer;
  transition: transform .12s ease, border-color .12s ease, background .12s ease;
}
.ev4x-fb-left > button:hover,
.ev4x-fb-helpbox button:hover,
.ev4x-fb-output-actions button:hover,
.ev4x-fb-canvas-toolbar button:hover {
  transform: translateY(-1px);
  border-color: rgba(88, 183, 255, .65);
  background: rgba(30, 41, 59, .88);
}
.ev4x-fb-helpbox,
.ev4x-fb-panel {
  margin-top: 16px;
  padding: 13px;
  border-radius: 18px;
  background: var(--ev4x-panel);
  border: 1px solid rgba(148, 163, 184, .2);
}
.ev4x-fb-helpbox h3 {
  margin: 0 0 8px;
  font-size: 14px;
}
.ev4x-fb-helpbox p,
.ev4x-fb-muted,
.ev4x-fb-empty {
  color: var(--ev4x-muted);
  font-size: 12px;
  line-height: 1.45;
}
.ev4x-fb-helpbox code {
  color: #fef3c7;
  background: rgba(255, 255, 255, .08);
  padding: 1px 4px;
  border-radius: 5px;
}
.ev4x-fb-helpbox select,
.ev4x-fb-fields input,
.ev4x-fb-fields select,
.ev4x-fb-fields textarea,
.ev4x-fb-test-input,
.ev4x-fb-output {
  width: 100%;
  border-radius: 12px !important;
  border: 1px solid rgba(148, 163, 184, .27) !important;
  background: rgba(15, 23, 42, .88) !important;
  color: var(--ev4x-text) !important;
  padding: 9px 10px !important;
}
.ev4x-fb-fields label {
  display: block;
  font-size: 12px;
  color: var(--ev4x-muted);
  margin: 10px 0 5px;
}
.ev4x-fb-fields textarea {
  min-height: 72px;
  resize: vertical;
}
.ev4x-fb-field-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 8px;
}
.ev4x-fb-field-actions {
  display: flex;
  gap: 8px;
  margin-top: 12px;
}
.ev4x-fb-field-actions button {
  flex: 1;
  min-height: 36px;
  border: 1px solid rgba(148, 163, 184, .25);
  background: rgba(15, 23, 42, .8);
  color: var(--ev4x-text);
  cursor: pointer;
}
.ev4x-fb-field-actions .danger {
  border-color: rgba(251, 113, 133, .45);
  color: #fecdd3;
}
.ev4x-fb-test-input {
  min-height: 92px;
  font-family: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, monospace;
}
.ev4x-fb-output {
  min-height: 260px;
  font-family: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, monospace;
  white-space: pre;
}
.ev4x-fb-output-actions {
  display: flex;
  gap: 8px;
  margin-top: 8px;
}
.ev4x-fb-output-actions button {
  margin: 0;
}
.ev4x-fb-canvas-wrap {
  min-width: 0;
  display: flex;
  flex-direction: column;
}
.ev4x-fb-canvas-toolbar {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 10px;
  padding: 10px 12px;
  border-bottom: 1px solid var(--ev4x-line);
  background: rgba(2, 6, 23, .22);
}
.ev4x-fb-canvas-toolbar button {
  width: auto;
  min-width: 120px;
  margin: 0;
}
.ev4x-fb-canvas {
  position: relative;
  flex: 1;
  min-height: 680px;
  overflow: auto;
  background-image:
    radial-gradient(circle, rgba(255, 255, 255, .42) 1px, transparent 1px),
    linear-gradient(rgba(148, 163, 184, .08) 1px, transparent 1px),
    linear-gradient(90deg, rgba(148, 163, 184, .08) 1px, transparent 1px);
  background-size: 90px 90px, 28px 28px, 28px 28px;
  background-position: 0 0, 0 0, 0 0;
}
.ev4x-fb-svg {
  position: absolute;
  left: 0;
  top: 0;
  width: 2200px;
  height: 1600px;
  pointer-events: none;
  overflow: visible;
}
.ev4x-fb-node-layer {
  position: relative;
  width: 2200px;
  height: 1600px;
}
.ev4x-fb-node {
  position: absolute;
  width: 168px;
  min-height: 80px;
  border: 1px solid rgba(255, 255, 255, .18);
  color: #fff;
  background: linear-gradient(145deg, rgba(15, 23, 42, .96), rgba(30, 41, 59, .96));
  border-radius: 20px;
  padding: 11px 12px;
  box-shadow: 0 14px 34px rgba(0, 0, 0, .26);
  cursor: grab;
  user-select: none;
  transition: box-shadow .14s ease, border-color .14s ease, transform .14s ease;
}
.ev4x-fb-node:active {
  cursor: grabbing;
}
.ev4x-fb-node.selected {
  border-color: var(--ev4x-gold);
  box-shadow: 0 0 0 3px rgba(255, 209, 102, .17), 0 18px 45px rgba(0, 0, 0, .32);
}
.ev4x-fb-node.connect-target {
  border-color: var(--ev4x-green);
  box-shadow: 0 0 0 3px rgba(74, 222, 128, .16), 0 18px 45px rgba(0, 0, 0, .32);
}
.ev4x-fb-node-type {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  padding: 3px 7px;
  border-radius: 999px;
  font-size: 11px;
  color: #061225;
  background: var(--ev4x-blue);
  margin-bottom: 8px;
  font-weight: 800;
}
.ev4x-fb-node-title {
  font-weight: 800;
  line-height: 1.2;
  margin-bottom: 5px;
}
.ev4x-fb-node-sub {
  font-size: 12px;
  color: #cbd5e1;
  line-height: 1.35;
  word-break: break-word;
}
.ev4x-fb-node.start,
.ev4x-fb-node.end {
  border-radius: 999px;
  min-height: 70px;
  display: flex;
  flex-direction: column;
  justify-content: center;
  text-align: center;
}
.ev4x-fb-node.decision {
  transform: rotate(45deg);
  border-radius: 14px;
  width: 142px;
  height: 142px;
  padding: 0;
}
.ev4x-fb-node.decision.selected {
  transform: rotate(45deg);
}
.ev4x-fb-node.decision .ev4x-fb-node-inner {
  transform: rotate(-45deg);
  width: 142px;
  height: 142px;
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  text-align: center;
  padding: 14px;
}
.ev4x-fb-node.decision .ev4x-fb-node-title {
  font-size: 13px;
}
.ev4x-fb-node.decision .ev4x-fb-node-sub {
  font-size: 11px;
}
.ev4x-fb-node.output .ev4x-fb-node-type { background: var(--ev4x-green); }
.ev4x-fb-node.assign .ev4x-fb-node-type { background: var(--ev4x-gold); }
.ev4x-fb-node.decision .ev4x-fb-node-type { background: var(--ev4x-purple); color: #16051f; }
.ev4x-fb-node.end .ev4x-fb-node-type { background: var(--ev4x-red); }
.ev4x-fb-edge-label {
  font-size: 12px;
  fill: #e2e8f0;
  paint-order: stroke;
  stroke: rgba(2, 6, 23, .85);
  stroke-width: 4px;
  stroke-linecap: round;
  stroke-linejoin: round;
}
.ev4x-fb-modal {
  position: fixed;
  z-index: 100000;
  inset: 0;
  display: grid;
  place-items: center;
  background: rgba(2, 6, 23, .68);
  backdrop-filter: blur(6px);
}
.ev4x-fb-modal-card {
  width: min(720px, calc(100vw - 34px));
  max-height: min(720px, calc(100vh - 34px));
  overflow: hidden;
  border-radius: 22px;
  background: #0f172a;
  color: #fff;
  box-shadow: 0 30px 90px rgba(0, 0, 0, .55);
  border: 1px solid rgba(255, 255, 255, .13);
}
.ev4x-fb-modal-head {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 16px 18px;
  border-bottom: 1px solid rgba(148, 163, 184, .25);
}
.ev4x-fb-modal-head h2 {
  margin: 0;
  font-size: 18px;
}
.ev4x-fb-modal-close {
  width: 38px;
  height: 38px;
  border: 1px solid rgba(148, 163, 184, .28);
  background: rgba(15, 23, 42, .9);
  color: #fff;
  font-size: 24px;
  cursor: pointer;
}
.ev4x-fb-list {
  padding: 14px 18px 18px;
  max-height: 620px;
  overflow: auto;
}
.ev4x-fb-list-item {
  display: flex;
  justify-content: space-between;
  gap: 12px;
  align-items: center;
  padding: 12px;
  margin-bottom: 10px;
  border-radius: 16px;
  background: rgba(30, 41, 59, .68);
  border: 1px solid rgba(148, 163, 184, .2);
}
.ev4x-fb-list-title {
  font-weight: 800;
}
.ev4x-fb-list-meta {
  color: #a7b4c8;
  font-size: 12px;
  margin-top: 3px;
}
.ev4x-fb-toast {
  position: fixed;
  z-index: 100001;
  right: 22px;
  bottom: 22px;
  padding: 12px 15px;
  border-radius: 14px;
  background: #0f172a;
  color: #fff;
  border: 1px solid rgba(148, 163, 184, .28);
  box-shadow: 0 18px 45px rgba(0, 0, 0, .32);
}
.ev4x-fb-toast.ok { border-color: rgba(74, 222, 128, .55); }
.ev4x-fb-toast.err { border-color: rgba(251, 113, 133, .65); }
@media (max-width: 1280px) {
  .ev4x-fb-main {
    grid-template-columns: 230px minmax(420px, 1fr) 300px;
  }
}
@media (max-width: 1060px) {
  .ev4x-fb-topbar,
  .ev4x-fb-actions {
    align-items: stretch;
    flex-direction: column;
  }
  .ev4x-fb-main {
    grid-template-columns: 1fr;
  }
  .ev4x-fb-sidebar,
  .ev4x-fb-right {
    border: 0;
    border-bottom: 1px solid var(--ev4x-line);
  }
  .ev4x-fb-left {
    display: grid;
    grid-template-columns: repeat(2, minmax(160px, 1fr));
    gap: 8px;
  }
  .ev4x-fb-left h2,
  .ev4x-fb-helpbox {
    grid-column: 1 / -1;
  }
}

/* ===== EV4X FlowBuilder 2.0: přehlednější učitelské rozhraní ===== */
.ev4x-fb-topbar {
  background: linear-gradient(90deg, rgba(2, 6, 23, .78), rgba(15, 23, 42, .54));
}
.ev4x-fb-example,
.ev4x-fb-quick-example {
  border: 1px solid rgba(255, 209, 102, .42) !important;
  background: linear-gradient(135deg, rgba(255, 209, 102, .18), rgba(88, 183, 255, .16)) !important;
  color: #fff7d6 !important;
}
.ev4x-fb-quickstart {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 14px;
  padding: 12px 16px;
  border-bottom: 1px solid rgba(148, 163, 184, .22);
  background: rgba(8, 17, 31, .68);
}
.ev4x-fb-quickstart > div {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
  color: #dbeafe;
  font-size: 13px;
}
.ev4x-fb-quickstart strong {
  color: #fff;
  margin-right: 4px;
}
.ev4x-fb-quickstart span {
  display: inline-flex;
  align-items: center;
  min-height: 27px;
  padding: 4px 8px;
  border-radius: 999px;
  background: rgba(30, 41, 59, .78);
  border: 1px solid rgba(148, 163, 184, .22);
}
.ev4x-fb-quick-example {
  min-height: 36px;
  padding: 0 12px;
  border-radius: 999px;
  cursor: pointer;
  white-space: nowrap;
}
.ev4x-fb-stepbox ol {
  margin: 0 0 0 18px;
  padding: 0;
  color: #dbeafe;
  font-size: 12px;
  line-height: 1.55;
}
.ev4x-fb-left > button {
  text-align: left;
  padding-left: 14px;
  font-weight: 700;
}
.ev4x-fb-panel,
.ev4x-fb-helpbox {
  box-shadow: 0 12px 30px rgba(0, 0, 0, .18);
}
.ev4x-fb-empty {
  min-height: 72px;
  display: grid;
  place-items: center;
  padding: 12px;
  border-radius: 14px;
  border: 1px dashed rgba(148, 163, 184, .28);
  background: rgba(15, 23, 42, .44);
  text-align: center;
}
.ev4x-fb-modal[hidden] {
  display: none !important;
}
.ev4x-fb-modal {
  background: rgba(2, 6, 23, .48);
  backdrop-filter: blur(2px);
}
.ev4x-fb-modal-card {
  background: linear-gradient(180deg, rgba(15, 23, 42, .98), rgba(8, 17, 31, .98));
  border-color: rgba(255, 209, 102, .18);
}
.ev4x-fb-modal-head {
  background: rgba(15, 23, 42, .72);
}
.ev4x-fb-modal-head p {
  margin: 5px 0 0;
  color: #a7b4c8;
  font-size: 12px;
}
.ev4x-fb-empty-list {
  display: grid;
  place-items: center;
  min-height: 210px;
  padding: 24px;
  text-align: center;
  border-radius: 18px;
  border: 1px dashed rgba(148, 163, 184, .32);
  background: radial-gradient(circle at 50% 0%, rgba(88, 183, 255, .18), transparent 45%), rgba(15, 23, 42, .68);
}
.ev4x-fb-empty-icon {
  width: 58px;
  height: 58px;
  display: grid;
  place-items: center;
  border-radius: 20px;
  background: rgba(255, 209, 102, .14);
  border: 1px solid rgba(255, 209, 102, .28);
  font-size: 28px;
  margin-bottom: 10px;
}
.ev4x-fb-empty-list h3 {
  margin: 0 0 6px;
  color: #fff;
  font-size: 18px;
}
.ev4x-fb-empty-list p {
  margin: 0 auto 16px;
  max-width: 430px;
  color: #a7b4c8;
}
.ev4x-fb-empty-actions {
  display: flex;
  gap: 10px;
  flex-wrap: wrap;
  justify-content: center;
}
.ev4x-fb-node.run-visited {
  border-color: rgba(74, 222, 128, .76);
  box-shadow: 0 0 0 3px rgba(74, 222, 128, .14), 0 18px 45px rgba(0, 0, 0, .32);
}
.ev4x-fb-node.run-last {
  border-color: rgba(255, 209, 102, .95);
  box-shadow: 0 0 0 4px rgba(255, 209, 102, .18), 0 18px 45px rgba(0, 0, 0, .38);
}
.ev4x-fb-edge.run-edge {
  filter: drop-shadow(0 0 6px rgba(255, 209, 102, .55));
}
.ev4x-fb-output:not(:placeholder-shown),
.ev4x-fb-test-input {
  line-height: 1.45;
}
@media (max-width: 1060px) {
  .ev4x-fb-quickstart {
    align-items: stretch;
    flex-direction: column;
  }
  .ev4x-fb-quick-example {
    width: 100%;
  }
}

/* ===== EV4X FlowBuilder 3.0: správné značky vývojových diagramů a horní posuvník ===== */
.ev4x-fb-top-scroll {
  width: 100%;
  height: 18px;
  overflow-x: auto;
  overflow-y: hidden;
  background: rgba(2, 6, 23, .34);
  border-bottom: 1px solid rgba(148, 163, 184, .2);
  scrollbar-gutter: stable;
}
.ev4x-fb-top-scroll-inner {
  width: 2200px;
  height: 1px;
}
.ev4x-fb-top-scroll::-webkit-scrollbar,
.ev4x-fb-canvas::-webkit-scrollbar {
  height: 14px;
  width: 14px;
}
.ev4x-fb-top-scroll::-webkit-scrollbar-track,
.ev4x-fb-canvas::-webkit-scrollbar-track {
  background: rgba(15, 23, 42, .86);
}
.ev4x-fb-top-scroll::-webkit-scrollbar-thumb,
.ev4x-fb-canvas::-webkit-scrollbar-thumb {
  background: linear-gradient(90deg, rgba(88, 183, 255, .72), rgba(255, 209, 102, .72));
  border-radius: 999px;
  border: 3px solid rgba(15, 23, 42, .86);
}
.ev4x-fb-top-scroll::-webkit-scrollbar-thumb:hover,
.ev4x-fb-canvas::-webkit-scrollbar-thumb:hover {
  background: linear-gradient(90deg, rgba(88, 183, 255, .95), rgba(255, 209, 102, .95));
}
.ev4x-fb-node.input,
.ev4x-fb-node.output {
  width: 180px;
  border-radius: 15px;
  transform: skew(-14deg);
  padding-left: 18px;
  padding-right: 18px;
}
.ev4x-fb-node.input .ev4x-fb-node-inner,
.ev4x-fb-node.output .ev4x-fb-node-inner {
  transform: skew(14deg);
}
.ev4x-fb-node.input.selected,
.ev4x-fb-node.output.selected,
.ev4x-fb-node.input.connect-target,
.ev4x-fb-node.output.connect-target,
.ev4x-fb-node.input.run-visited,
.ev4x-fb-node.output.run-visited,
.ev4x-fb-node.input.run-last,
.ev4x-fb-node.output.run-last {
  transform: skew(-14deg);
}
.ev4x-fb-node.input::after,
.ev4x-fb-node.output::after {
  content: "";
  position: absolute;
  inset: 5px;
  border-radius: 10px;
  border: 1px solid rgba(255, 255, 255, .08);
  pointer-events: none;
}


/* ===== EV4X FlowBuilder 4.0: přepínání zobrazení na šířku / na výšku ===== */
.ev4x-fb-layout-toggle {
  background: linear-gradient(135deg, rgba(22, 163, 74, .92), rgba(20, 184, 166, .92)) !important;
  color: #ecfeff !important;
  border-color: rgba(125, 211, 252, .45) !important;
  font-weight: 800 !important;
  min-width: 165px !important;
}
.ev4x-fb-layout-toggle:hover {
  filter: brightness(1.08);
}
.ev4x-flowbuilder-app[data-layout="vertical"] .ev4x-fb-canvas {
  background-image:
    radial-gradient(circle, rgba(255, 255, 255, .42) 1px, transparent 1px),
    linear-gradient(rgba(125, 211, 252, .10) 1px, transparent 1px),
    linear-gradient(90deg, rgba(125, 211, 252, .06) 1px, transparent 1px);
}
.ev4x-flowbuilder-app[data-layout="vertical"] .ev4x-fb-layout-toggle {
  background: linear-gradient(135deg, rgba(124, 58, 237, .95), rgba(14, 165, 233, .92)) !important;
}


/* ===== EV4X FlowBuilder 5.0: samostatný svislý posuvník kreslicí plochy ===== */
.ev4x-fb-main {
  height: clamp(560px, calc(100vh - 250px), 780px);
  min-height: 0;
}
.ev4x-fb-main > * {
  min-height: 0;
}
.ev4x-fb-canvas-wrap {
  min-height: 0;
  overflow: hidden;
}
.ev4x-fb-canvas-area {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 18px;
  flex: 1;
  min-height: 0;
  height: 100%;
}
.ev4x-fb-canvas {
  min-height: 0;
  height: 100%;
  overscroll-behavior: contain;
}
.ev4x-fb-side-scroll {
  width: 18px;
  height: 100%;
  overflow-y: auto;
  overflow-x: hidden;
  background: rgba(2, 6, 23, .34);
  border-left: 1px solid rgba(148, 163, 184, .2);
  scrollbar-gutter: stable;
  overscroll-behavior: contain;
}
.ev4x-fb-side-scroll-inner {
  width: 1px;
  height: 1600px;
}
.ev4x-fb-side-scroll::-webkit-scrollbar {
  width: 14px;
}
.ev4x-fb-side-scroll::-webkit-scrollbar-track {
  background: rgba(15, 23, 42, .82);
  border-radius: 999px;
}
.ev4x-fb-side-scroll::-webkit-scrollbar-thumb {
  background: linear-gradient(180deg, rgba(88, 183, 255, .92), rgba(255, 209, 102, .84));
  border-radius: 999px;
  border: 3px solid rgba(15, 23, 42, .88);
}
.ev4x-fb-side-scroll::-webkit-scrollbar-thumb:hover {
  background: linear-gradient(180deg, rgba(125, 211, 252, 1), rgba(254, 240, 138, .98));
}
.ev4x-fb-sidebar {
  max-height: 100%;
  overscroll-behavior: contain;
}
@media (max-width: 1060px) {
  .ev4x-fb-main {
    height: auto;
    max-height: none;
  }
  .ev4x-fb-canvas-area {
    height: 620px;
  }
}


/* ===== EV4X FlowBuilder 7.0: jediný svislý posuvník kreslicí plochy ===== */
.ev4x-fb-canvas-area {
  display: block;
}
.ev4x-fb-canvas {
  overflow: auto;
  scrollbar-gutter: stable;
}
.ev4x-fb-side-scroll {
  display: none !important;
}

/* ===== EV4X FlowBuilder 6.0: více ukázkových příkladů ===== */
.ev4x-fb-examplebar {
  display: flex;
  align-items: center;
  gap: 10px;
  flex-wrap: wrap;
  justify-content: flex-end;
}
.ev4x-fb-quick-ohm-example {
  min-height: 36px;
  padding: 0 12px;
  border-radius: 999px;
  cursor: pointer;
  white-space: nowrap;
  border: 1px solid rgba(74, 222, 128, .42) !important;
  background: linear-gradient(135deg, rgba(74, 222, 128, .18), rgba(88, 183, 255, .16)) !important;
  color: #dcfce7 !important;
}
.ev4x-fb-ohm-example {
  border-color: rgba(74, 222, 128, .48) !important;
  color: #dcfce7 !important;
}
@media (max-width: 1060px) {
  .ev4x-fb-examplebar,
  .ev4x-fb-quick-ohm-example {
    width: 100%;
  }
  .ev4x-fb-examplebar {
    justify-content: stretch;
  }
  .ev4x-fb-examplebar button {
    flex: 1 1 220px;
  }
}

/* ===== EV4X FlowBuilder 8.0: cykly a lupa diagramu ===== */
.ev4x-fb-stage {
  position: relative;
  width: 2200px;
  height: 1600px;
}
.ev4x-fb-svg,
.ev4x-fb-node-layer {
  transform-origin: 0 0;
}
.ev4x-fb-node-layer {
  position: absolute;
  left: 0;
  top: 0;
}
.ev4x-fb-zoom-level {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 72px;
  height: 38px;
  padding: 0 12px;
  border-radius: 999px;
  border: 1px solid rgba(255, 209, 102, .32);
  background: rgba(15, 23, 42, .78);
  color: #fff7d6;
  font-weight: 800;
  box-shadow: inset 0 0 18px rgba(255, 209, 102, .08);
}
.ev4x-fb-zoom-in,
.ev4x-fb-zoom-out {
  min-width: 86px !important;
  background: linear-gradient(135deg, rgba(88, 183, 255, .92), rgba(14, 165, 233, .86)) !important;
  color: #eff6ff !important;
  font-weight: 800 !important;
}
.ev4x-fb-zoom-in:disabled,
.ev4x-fb-zoom-out:disabled {
  opacity: .48;
  cursor: not-allowed;
  transform: none !important;
}
.ev4x-fb-node.for_loop {
  width: 184px;
  min-height: 88px;
  border-radius: 16px;
  background: linear-gradient(145deg, rgba(21, 94, 117, .96), rgba(15, 23, 42, .96));
  clip-path: polygon(12% 0, 88% 0, 100% 50%, 88% 100%, 12% 100%, 0 50%);
  padding-left: 22px;
  padding-right: 22px;
  border-color: rgba(125, 211, 252, .38);
}
.ev4x-fb-node.while_loop,
.ev4x-fb-node.do_while_loop {
  width: 184px;
  min-height: 88px;
  border-radius: 28px 10px 28px 10px;
  background: linear-gradient(145deg, rgba(49, 46, 129, .96), rgba(15, 23, 42, .96));
  border-color: rgba(192, 132, 252, .36);
}
.ev4x-fb-node.do_while_loop {
  border-radius: 10px 28px 10px 28px;
  background: linear-gradient(145deg, rgba(88, 28, 135, .94), rgba(15, 23, 42, .96));
}
.ev4x-fb-node.for_loop .ev4x-fb-node-type {
  background: linear-gradient(135deg, #67e8f9, #a7f3d0);
  color: #042f2e;
}
.ev4x-fb-node.while_loop .ev4x-fb-node-type,
.ev4x-fb-node.do_while_loop .ev4x-fb-node-type {
  background: linear-gradient(135deg, #c084fc, #93c5fd);
  color: #14051f;
}
.ev4x-fb-node.for_loop::after,
.ev4x-fb-node.while_loop::after,
.ev4x-fb-node.do_while_loop::after {
  content: "";
  position: absolute;
  inset: 6px;
  border-radius: inherit;
  border: 1px solid rgba(255, 255, 255, .08);
  pointer-events: none;
}
.ev4x-fb-node.for_loop::after {
  clip-path: polygon(12% 0, 88% 0, 100% 50%, 88% 100%, 12% 100%, 0 50%);
}
.ev4x-fb-left button[data-add-node="for_loop"],
.ev4x-fb-left button[data-add-node="while_loop"],
.ev4x-fb-left button[data-add-node="do_while_loop"] {
  border-color: rgba(125, 211, 252, .34);
  background: linear-gradient(135deg, rgba(14, 165, 233, .16), rgba(124, 58, 237, .14));
}

/* ===== EV4X FlowBuilder 10.0: práce s polem a prvky pole ===== */
.ev4x-fb-node.array_create,
.ev4x-fb-node.array_set,
.ev4x-fb-node.array_get,
.ev4x-fb-node.array_append,
.ev4x-fb-node.array_length {
  width: 184px;
  min-height: 88px;
  border-radius: 18px;
  background: linear-gradient(145deg, rgba(8, 47, 73, .96), rgba(15, 23, 42, .96));
  border-color: rgba(56, 189, 248, .36);
}
.ev4x-fb-node.array_create {
  clip-path: polygon(8% 0, 100% 0, 92% 100%, 0 100%);
  padding-left: 22px;
  padding-right: 22px;
}
.ev4x-fb-node.array_set,
.ev4x-fb-node.array_get {
  background: linear-gradient(145deg, rgba(30, 64, 175, .94), rgba(15, 23, 42, .96));
}
.ev4x-fb-node.array_append,
.ev4x-fb-node.array_length {
  background: linear-gradient(145deg, rgba(15, 118, 110, .94), rgba(15, 23, 42, .96));
}
.ev4x-fb-node.array_create .ev4x-fb-node-type,
.ev4x-fb-node.array_set .ev4x-fb-node-type,
.ev4x-fb-node.array_get .ev4x-fb-node-type,
.ev4x-fb-node.array_append .ev4x-fb-node-type,
.ev4x-fb-node.array_length .ev4x-fb-node-type {
  background: linear-gradient(135deg, #38bdf8, #a7f3d0);
  color: #05233d;
}
.ev4x-fb-left button[data-add-node="array_create"],
.ev4x-fb-left button[data-add-node="array_set"],
.ev4x-fb-left button[data-add-node="array_get"],
.ev4x-fb-left button[data-add-node="array_append"],
.ev4x-fb-left button[data-add-node="array_length"] {
  border-color: rgba(56, 189, 248, .36);
  background: linear-gradient(135deg, rgba(14, 165, 233, .15), rgba(20, 184, 166, .13));
}