:root {
  --bg: #f6f3ee;
  --panel: #fffdfa;
  --panel-strong: #ffffff;
  --ink: #1f2a2e;
  --muted: #667176;
  --line: #d9d6cf;
  --line-strong: #b9c0bd;
  --accent: #137c82;
  --accent-dark: #0e5f65;
  --accent-soft: #e0f2ef;
  --orange: #d87b2a;
  --green: #4f8a55;
  --red: #b84a4a;
  --blue: #3f6f99;
  --yellow: #b89124;
  --shadow: 0 18px 45px rgba(31, 42, 46, 0.12);
  --soft-shadow: 0 8px 24px rgba(31, 42, 46, 0.08);
  --edge-ink: #234152;
  --board-bg: #fbfaf6;
  --grid-strong: rgba(31, 42, 46, 0.06);
  --grid-soft: rgba(31, 42, 46, 0.035);
  --node-surface: #ffffff;
  --label-surface: rgba(255, 255, 255, 0.94);
  --label-ink: #273236;
  --field-surface: #ffffff;
  --field-ink: var(--ink);
  --topbar-height: 74px;
  --left-pane-width: 248px;
  --right-pane-width: 332px;

  /* UI tokens */
  --radius-sm: 8px;
  --radius-md: 10px;
  --radius-lg: 14px;
  --radius-pill: 999px;
  --hover-surface: color-mix(in srgb, var(--accent) 6%, var(--panel-strong));
  --focus-ring: color-mix(in srgb, var(--accent) 28%, transparent);
  --focus-border: color-mix(in srgb, var(--accent) 55%, var(--line));

  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  color: var(--ink);
}

html[data-theme="dark"] {
  --bg: #0f1417;
  --panel: #121a1f;
  --panel-strong: #10181d;
  --ink: #e8eef2;
  --muted: #9aa6ad;
  --line: rgba(232, 238, 242, 0.12);
  --line-strong: rgba(232, 238, 242, 0.22);
  --accent: #2bb6b1;
  --accent-dark: #1f8f8b;
  --accent-soft: rgba(43, 182, 177, 0.14);
  --shadow: 0 18px 45px rgba(0, 0, 0, 0.55);
  --soft-shadow: 0 8px 24px rgba(0, 0, 0, 0.45);
  --edge-ink: #cfe3ef;
  --board-bg: #0c1115;
  --grid-strong: rgba(232, 238, 242, 0.08);
  --grid-soft: rgba(232, 238, 242, 0.045);
  --node-surface: rgba(16, 24, 29, 0.98);
  --label-surface: rgba(16, 24, 29, 0.92);
  --label-ink: var(--ink);
  --field-surface: #0f171c;
  --field-ink: var(--ink);

  --hover-surface: color-mix(in srgb, var(--accent) 10%, var(--panel-strong));
  --focus-ring: color-mix(in srgb, var(--accent) 30%, transparent);
}

* {
  box-sizing: border-box;
}

html,
body {
  width: 100%;
  height: 100%;
  margin: 0;
  background: var(--bg);
}

body {
  overflow: hidden;
}

/* When auth gate is active, hide the app behind it (no "app shows through") */
body.auth-active .app-shell {
  opacity: 0;
  pointer-events: none;
}

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

button {
  color: inherit;
}

:focus-visible {
  outline: 3px solid color-mix(in srgb, var(--accent) 38%, transparent);
  outline-offset: 2px;
}

/* Only show focus rings for keyboard interaction */
:focus:not(:focus-visible) {
  outline: none;
}

svg {
  display: block;
}

.app-shell {
  display: grid;
  grid-template-columns: 248px minmax(0, 1fr) 332px;
  grid-template-rows: var(--topbar-height) minmax(0, 1fr);
  height: 100vh;
  background: var(--bg);
}

.app-shell.left-collapsed {
  grid-template-columns: 0px minmax(0, 1fr) 332px;
}

.app-shell.right-collapsed {
  grid-template-columns: 248px minmax(0, 1fr) 0px;
}

.app-shell.left-collapsed.right-collapsed {
  grid-template-columns: 0px minmax(0, 1fr) 0px;
}

.app-shell.left-collapsed .palette,
.app-shell.right-collapsed .inspector {
  overflow: hidden;
}

.topbar {
  grid-column: 1 / -1;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 18px;
  padding: 10px 16px;
  background: var(--panel-strong);
  border-bottom: 1px solid var(--line);
  z-index: 20;
}

.brand {
  display: flex;
  align-items: center;
  min-width: 0;
  gap: 12px;
}

.brand strong,
.brand span {
  display: block;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.brand strong {
  font-size: 15px;
  font-weight: 760;
}

.brand span {
  color: var(--muted);
  font-size: 12px;
  line-height: 1.4;
}

.top-center {
  display: flex;
  align-items: center;
  justify-content: center;
  min-width: 0;
  flex: 1;
}

.workspace-pill {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  height: 40px;
  padding: 0 12px 0 14px;
  border: 1px solid var(--line);
  border-radius: var(--radius-pill);
  background: color-mix(in srgb, var(--panel) 85%, var(--panel-strong));
  box-shadow: 0 6px 18px rgba(31, 42, 46, 0.06);
}

.workspace-pill-label {
  font-size: 12px;
  font-weight: 760;
  color: var(--muted);
  letter-spacing: 0.02em;
  text-transform: uppercase;
}

#workspaceSelect {
  max-width: 240px;
  height: 34px;
  padding: 0 30px 0 10px;
  border: 1px solid transparent;
  border-radius: var(--radius-pill);
  background: transparent;
  color: var(--ink);
  cursor: pointer;
  appearance: none;
  font-weight: 760;
  background-image:
    linear-gradient(45deg, transparent 50%, color-mix(in srgb, var(--muted) 80%, transparent) 50%),
    linear-gradient(135deg, color-mix(in srgb, var(--muted) 80%, transparent) 50%, transparent 50%);
  background-position: calc(100% - 14px) 50%, calc(100% - 9px) 50%;
  background-size: 6px 6px, 6px 6px;
  background-repeat: no-repeat;
}

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

@media (max-width: 820px) {
  .top-center {
    width: 100%;
    justify-content: flex-start;
  }
}

.role-badge[data-role="editor"] {
  color: color-mix(in srgb, var(--blue) 80%, var(--ink));
  border-color: color-mix(in srgb, var(--blue) 35%, var(--line));
  background: color-mix(in srgb, var(--blue) 10%, var(--panel-strong));
}

.role-badge[data-role="viewer"] {
  opacity: 0.9;
}

.brand-mark {
  display: grid;
  width: 52px;
  height: 52px;
  min-width: 52px;
  place-items: center;
  border: none;
  border-radius: 0;
  background: transparent;
  overflow: visible;
}

html[data-theme="dark"] .brand-mark {
  background: transparent;
}

.brand-logo {
  width: 100%;
  height: 100%;
  object-fit: contain;
  object-position: center;
  display: block;
  padding: 0;
}

.icon-picker-row {
  display: flex;
  align-items: center;
  gap: 10px;
}

.icon-preview {
  width: 32px;
  height: 32px;
  display: grid;
  place-items: center;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--panel);
}

.icon-preview svg {
  width: 18px;
  height: 18px;
  stroke: var(--ink);
}

.icon-preview img {
  width: 22px;
  height: 22px;
  object-fit: contain;
}

.modal {
  position: fixed;
  inset: 0;
  display: grid;
  place-items: center;
  background: rgba(0, 0, 0, 0.45);
  z-index: 50;
}

.modal-card {
  width: min(860px, calc(100vw - 32px));
  max-height: min(720px, calc(100vh - 32px));
  display: grid;
  grid-template-rows: auto minmax(0, 1fr);
  border: 1px solid var(--line);
  border-radius: 14px;
  background: var(--panel-strong);
  box-shadow: var(--shadow);
  overflow: hidden;
}

.modal-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 12px 14px;
  border-bottom: 1px solid var(--line);
}

.modal-body {
  padding: 12px 14px 16px;
  overflow: auto;
}

.help-doc h2 {
  margin: 18px 0 8px;
  font-size: 14px;
}

.help-doc h3 {
  margin: 12px 0 6px;
  font-size: 13px;
}

.help-doc p,
.help-doc li {
  font-size: 13px;
  line-height: 1.55;
  color: var(--ink);
}

.help-doc code {
  font-family: "Cascadia Mono", Consolas, "Liberation Mono", monospace;
  font-size: 12px;
  background: color-mix(in srgb, var(--panel) 85%, var(--line));
  padding: 1px 6px;
  border-radius: 6px;
}

.help-doc ul,
.help-doc ol {
  margin: 8px 0 0 18px;
}

.hint {
  display: block;
  margin-top: 6px;
  color: var(--muted);
  font-size: 12px;
  font-weight: 650;
}

.modal-controls {
  display: grid;
  grid-template-columns: 1fr 180px auto;
  gap: 10px;
  align-items: center;
}

.modal-controls input,
.modal-controls select {
  height: 38px;
  padding: 0 10px;
  border: 1px solid var(--line);
  border-radius: 10px;
  background: var(--field-surface);
  color: var(--field-ink);
}

.upload-btn {
  height: 38px;
  padding: 0 12px;
  border: 1px solid var(--line);
  border-radius: 10px;
  background: var(--panel);
  display: inline-flex;
  align-items: center;
  cursor: pointer;
  font-weight: 760;
}

.icon-grid {
  margin-top: 14px;
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(120px, 1fr));
  gap: 10px;
}

.icon-tile {
  border: 1px solid var(--line);
  border-radius: 12px;
  background: var(--panel);
  padding: 10px;
  display: grid;
  grid-template-rows: 42px auto;
  gap: 8px;
  cursor: pointer;
  user-select: none;
}

.icon-tile:hover {
  border-color: color-mix(in srgb, var(--accent) 45%, var(--line));
  box-shadow: var(--soft-shadow);
}

.icon-tile .glyph {
  display: grid;
  place-items: center;
}

.icon-tile svg {
  width: 26px;
  height: 26px;
  stroke: var(--ink);
}

.icon-tile img {
  width: 28px;
  height: 28px;
  object-fit: contain;
}

.icon-tile .name {
  font-size: 12px;
  font-weight: 760;
  color: var(--ink);
  line-height: 1.2;
}

@media (max-width: 720px) {
  .modal-controls {
    grid-template-columns: 1fr;
  }
}

.top-actions {
  display: flex;
  align-items: center;
  justify-content: flex-end;
  gap: 8px;
  min-width: 0;
}

.icon-btn,
.text-btn,
.tool-btn,
.wide-btn {
  border: 1px solid var(--line);
  border-radius: var(--radius-sm);
  background: var(--panel-strong);
  cursor: pointer;
  transition: background 140ms ease, border-color 140ms ease, color 140ms ease, transform 140ms ease, box-shadow 140ms ease;
}

.icon-btn:hover,
.text-btn:hover,
.tool-btn:hover,
.wide-btn:hover {
  border-color: var(--line-strong);
  background: var(--hover-surface);
}

.icon-btn:focus-visible,
.text-btn:focus-visible,
.tool-btn:focus-visible,
.wide-btn:focus-visible,
.pane-toggle:focus-visible,
.crumb:focus-visible,
.icon-tile:focus-visible {
  outline: none;
  border-color: var(--focus-border);
  box-shadow: 0 0 0 3px var(--focus-ring);
}

button:disabled {
  opacity: 0.55;
  cursor: not-allowed;
  transform: none;
}

.icon-btn:active,
.text-btn:active,
.tool-btn:active,
.wide-btn:active {
  transform: translateY(1px);
}

.icon-btn {
  display: grid;
  width: 36px;
  height: 36px;
  min-width: 36px;
  place-items: center;
  padding: 0;
}

.icon-btn svg,
.text-btn svg,
.tool-btn svg,
.wide-btn svg {
  width: 18px;
  height: 18px;
  fill: none;
  stroke: currentColor;
  stroke-width: 2;
  stroke-linecap: round;
  stroke-linejoin: round;
}

.icon-btn.danger {
  color: var(--red);
}

.text-btn {
  min-width: 76px;
  height: 36px;
  padding: 0 12px;
  font-size: 13px;
  font-weight: 700;
}

.text-btn.primary,
.wide-btn.primary {
  color: #ffffff;
  border-color: var(--accent-dark);
  background: var(--accent);
}

.text-btn.primary:hover,
.wide-btn.primary:hover {
  border-color: var(--accent-dark);
  background: var(--accent-dark);
}

.palette,
.inspector {
  position: relative;
  min-height: 0;
  overflow: auto;
  background: var(--panel);
  z-index: 10;
}

.pane-toggle {
  position: fixed;
  top: calc(var(--topbar-height) + 12px);
  width: 26px;
  height: 44px;
  padding: 0;
  border: 1px solid var(--line);
  background: var(--panel-strong);
  color: var(--ink);
  border-radius: 10px;
  display: grid;
  place-items: center;
  cursor: pointer;
  z-index: 30;
  box-shadow: var(--soft-shadow);
}

.pane-toggle svg {
  width: 18px;
  height: 18px;
  fill: none;
  stroke: currentColor;
  stroke-width: 2.2;
  stroke-linecap: round;
  stroke-linejoin: round;
}

.pane-toggle-left {
  left: calc(var(--left-pane-width) - 13px);
}

.pane-toggle-right {
  right: calc(var(--right-pane-width) - 13px);
}

.app-shell.left-collapsed .pane-toggle-left {
  left: 6px;
  top: calc(var(--topbar-height) + 54px);
}

.app-shell.right-collapsed .pane-toggle-right {
  right: 6px;
}

.app-shell.left-collapsed .pane-toggle-left svg {
  transform: rotate(180deg);
}

.app-shell.right-collapsed .pane-toggle-right svg {
  transform: rotate(180deg);
}

.palette {
  border-right: 1px solid var(--line);
  padding: 14px 12px;
}

.app-shell.left-collapsed .palette {
  padding: 0;
  border-right: 0;
}

.inspector {
  border-left: 1px solid var(--line);
  padding: 14px;
}

.app-shell.right-collapsed .inspector {
  padding: 0;
  border-left: 0;
}

.tool-section + .tool-section {
  margin-top: 18px;
}

.tool-section h2,
.inspector-header h2,
.export-header h2 {
  margin: 0 0 10px;
  font-size: 12px;
  font-weight: 780;
  color: #3d484c;
}

.segmented {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 8px;
}

.tool-btn,
.wide-btn {
  display: flex;
  align-items: center;
  gap: 8px;
  min-width: 0;
  min-height: 40px;
  padding: 8px 10px;
  text-align: left;
}

.tool-btn span,
.wide-btn span {
  min-width: 0;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
  font-size: 13px;
  font-weight: 700;
}

.tool-btn.active {
  color: var(--accent-dark);
  border-color: #8ecdc5;
  background: var(--accent-soft);
}

.wide-btn {
  width: 100%;
  justify-content: flex-start;
}

.wide-btn + .wide-btn {
  margin-top: 8px;
}

.hint-panel p {
  margin: 0;
  color: var(--muted);
  font-size: 12px;
  line-height: 1.55;
}

.board-wrap {
  position: relative;
  min-width: 0;
  min-height: 0;
  overflow: hidden;
}

.board-viewport {
  position: absolute;
  inset: 0;
  overflow: hidden;
  cursor: grab;
  background-color: var(--board-bg);
  background-image:
    linear-gradient(var(--grid-strong) 1px, transparent 1px),
    linear-gradient(90deg, var(--grid-strong) 1px, transparent 1px),
    linear-gradient(var(--grid-soft) 1px, transparent 1px),
    linear-gradient(90deg, var(--grid-soft) 1px, transparent 1px);
  background-size: 80px 80px, 80px 80px, 20px 20px, 20px 20px;
}

.board-viewport.dragging {
  cursor: grabbing;
}

.board-viewport.space-panning {
  cursor: grab;
}

.board-viewport.connecting {
  cursor: crosshair;
}

.board {
  position: absolute;
  left: 0;
  top: 0;
  width: 5000px;
  height: 3600px;
  transform-origin: 0 0;
}

.edge-layer,
.node-layer {
  position: absolute;
  inset: 0;
  width: 5000px;
  height: 3600px;
}

.edge-layer {
  overflow: visible;
  pointer-events: none;
}

.node-layer {
  pointer-events: none;
}

.node {
  position: absolute;
  display: flex;
  flex-direction: column;
  width: 148px;
  height: 140px;
  align-items: center;
  justify-content: flex-start;
  padding: 0;
  border: 0;
  background: transparent;
  pointer-events: auto;
  user-select: none;
}

.node-quick-connect {
  position: absolute;
  width: 18px;
  height: 18px;
  padding: 0;
  margin: 0;
  border-radius: 999px;
  border: 2px solid color-mix(in srgb, var(--line-strong) 70%, transparent);
  background: color-mix(in srgb, var(--panel-strong) 55%, transparent);
  box-shadow: 0 4px 14px rgba(0, 0, 0, 0.10);
  opacity: 0;
  transform: translate(-50%, -50%) scale(1);
  pointer-events: none;
  transition: opacity 120ms ease, border-color 120ms ease, box-shadow 120ms ease;
}

.node-quick-connect.active {
  opacity: 0.55;
  transform: translate(-50%, -50%) scale(1);
  pointer-events: auto;
}

.node-quick-connect:hover {
  opacity: 0.95;
  border-color: color-mix(in srgb, var(--accent) 70%, var(--line));
  box-shadow: 0 0 0 4px color-mix(in srgb, var(--accent) 20%, transparent), var(--shadow);
}

.node-quick-connect::before {
  content: "";
  position: absolute;
  inset: 4px;
  border-radius: 999px;
  background: color-mix(in srgb, var(--accent) 45%, transparent);
}

.node.label-above {
  justify-content: flex-end;
}

.node-body {
  position: relative;
  display: grid;
  width: 84px;
  height: 84px;
  place-items: center;
  border: 3px solid var(--node-color, var(--accent));
  border-radius: 50%;
  background: var(--node-surface);
  background:
    radial-gradient(circle at 35% 28%, color-mix(in srgb, var(--node-surface) 92%, #ffffff), var(--node-surface) 55%),
    color-mix(in srgb, var(--node-color, var(--accent)) 10%, var(--node-surface));
  box-shadow: var(--soft-shadow);
  color: var(--node-color, var(--accent));
  transition: border-color 140ms ease, box-shadow 140ms ease, transform 140ms ease;
}

.node:hover .node-body {
  box-shadow: 0 10px 28px rgba(31, 42, 46, 0.16);
  transform: translateY(-1px);
}

.node.selected .node-body {
  box-shadow: 0 0 0 4px rgba(19, 124, 130, 0.16), var(--shadow);
}

.node.connect-source .node-body {
  box-shadow: 0 0 0 5px rgba(216, 123, 42, 0.24), var(--shadow);
}

.node.container .node-body {
  border-style: dashed;
}

.node-body svg {
  width: 34px;
  height: 34px;
  fill: none;
  stroke: currentColor;
  stroke-width: 2;
  stroke-linecap: round;
  stroke-linejoin: round;
}

.node-count {
  position: absolute;
  right: -2px;
  bottom: -2px;
  display: grid;
  min-width: 25px;
  height: 25px;
  place-items: center;
  padding: 0 6px;
  border: 2px solid #ffffff;
  border-radius: 999px;
  background: var(--node-color, var(--accent));
  color: #ffffff;
  font-size: 11px;
  font-weight: 800;
  line-height: 1;
}

.node-label {
  display: -webkit-box;
  width: 138px;
  max-height: 42px;
  margin-top: 9px;
  overflow: hidden;
  padding: 5px 7px;
  border: 1px solid var(--line-strong);
  border-radius: 8px;
  background: var(--label-surface);
  box-shadow: 0 5px 16px rgba(31, 42, 46, 0.08);
  color: var(--label-ink);
  font-size: 12px;
  font-weight: 800;
  line-height: 1.25;
  text-align: center;
  -webkit-box-orient: vertical;
  -webkit-line-clamp: 2;
}

html[data-theme="dark"] .node-label {
  box-shadow: 0 6px 18px rgba(0, 0, 0, 0.5);
}

.node.label-above .node-label {
  order: -1;
  margin-top: 0;
  margin-bottom: 9px;
}

.node.selected .node-label {
  border-color: rgba(19, 124, 130, 0.5);
}

.edge-hit {
  pointer-events: stroke;
  cursor: pointer;
  fill: none;
  stroke: transparent;
  stroke-width: 18;
}

.edge-path {
  fill: none;
  stroke: var(--edge-ink);
  stroke-width: 2.4;
  stroke-linecap: round;
  stroke-linejoin: round;
  pointer-events: none;
}

.edge-path.selected {
  stroke: var(--accent);
  stroke-width: 3.2;
}

.edge-label-bg {
  fill: var(--panel-strong);
  stroke: var(--line-strong);
  stroke-width: 1;
  filter: drop-shadow(0 5px 12px rgba(31, 42, 46, 0.08));
}

html[data-theme="dark"] .edge-label-bg {
  filter: drop-shadow(0 6px 16px rgba(0, 0, 0, 0.55));
}

.edge-label-text {
  fill: var(--ink);
  font-size: 12px;
  font-weight: 760;
  pointer-events: none;
}

.breadcrumb {
  position: absolute;
  top: 14px;
  left: 14px;
  z-index: 4;
  display: flex;
  max-width: min(760px, calc(100% - 28px));
  align-items: center;
  gap: 6px;
  overflow: hidden;
  padding: 7px 9px;
  border: 1px solid rgba(185, 192, 189, 0.8);
  border-radius: 8px;
  background: rgba(255, 253, 250, 0.94);
  box-shadow: var(--soft-shadow);
}

.crumb {
  display: inline-flex;
  align-items: center;
  max-width: 180px;
  overflow: hidden;
  border: 0;
  background: transparent;
  color: var(--accent-dark);
  cursor: pointer;
  font-size: 12px;
  font-weight: 760;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.crumb[disabled] {
  color: var(--muted);
  cursor: default;
}

.crumb-separator {
  color: #9aa29e;
  font-size: 12px;
}

.zoom-bar {
  position: absolute;
  right: 14px;
  bottom: 14px;
  z-index: 4;
  display: flex;
  align-items: center;
  gap: 6px;
  padding: 7px;
  border: 1px solid rgba(185, 192, 189, 0.8);
  border-radius: 8px;
  background: rgba(255, 253, 250, 0.94);
  box-shadow: var(--soft-shadow);
}

#zoomLabel {
  width: 52px;
  color: #3f4a4f;
  font-size: 12px;
  font-weight: 780;
  text-align: center;
}

.toast {
  position: absolute;
  left: 50%;
  bottom: 18px;
  z-index: 8;
  max-width: min(460px, calc(100% - 32px));
  padding: 10px 12px;
  border: 1px solid #b9ded8;
  border-radius: 8px;
  background: #eef9f5;
  box-shadow: var(--shadow);
  color: #1e4e4e;
  font-size: 13px;
  font-weight: 700;
  opacity: 0;
  pointer-events: none;
  transform: translate(-50%, 12px);
  transition: opacity 180ms ease, transform 180ms ease;
}

.toast.visible {
  opacity: 1;
  transform: translate(-50%, 0);
}

.inspector-header,
.export-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 8px;
}

.inspector-header {
  margin-bottom: 14px;
}

.inspector-header h2 {
  margin: 0;
  font-size: 15px;
}

#selectionBadge {
  max-width: 138px;
  overflow: hidden;
  padding: 5px 8px;
  border: 1px solid #d7ddd8;
  border-radius: 999px;
  background: #f7faf8;
  color: var(--muted);
  font-size: 11px;
  font-weight: 760;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.empty-state {
  display: grid;
  min-height: 220px;
  place-items: center;
  align-content: center;
  gap: 12px;
  color: #9aa29e;
  text-align: center;
}

.empty-state svg {
  width: 76px;
  height: 76px;
}

.empty-state p {
  max-width: 230px;
  margin: 0;
  color: var(--muted);
  font-size: 13px;
  line-height: 1.45;
}

.hidden {
  display: none !important;
}

.inspector-form {
  display: grid;
  gap: 11px;
}

.inspector-form label {
  display: grid;
  gap: 6px;
  color: var(--muted);
  font-size: 12px;
  font-weight: 760;
}

.inspector-form input,
.inspector-form select,
.inspector-form textarea,
.export-preview textarea {
  width: 100%;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--field-surface);
  color: var(--field-ink);
  outline: none;
}

.inspector-form input,
.inspector-form select {
  height: 38px;
  padding: 0 10px;
}

.inspector-form textarea,
.export-preview textarea {
  min-height: 86px;
  padding: 9px 10px;
  resize: vertical;
}

.inspector-form input:focus,
.inspector-form select:focus,
.inspector-form textarea:focus,
.export-preview textarea:focus {
  border-color: color-mix(in srgb, var(--accent) 55%, var(--line));
  box-shadow: 0 0 0 3px color-mix(in srgb, var(--accent) 22%, transparent);
}

.inspector-actions {
  margin-top: 2px;
}

.export-preview {
  margin-top: 20px;
  padding-top: 14px;
  border-top: 1px solid var(--line);
}

.export-header h2 {
  margin: 0;
}

.export-preview textarea {
  height: 210px;
  margin-top: 10px;
  color: var(--ink);
  font-family: "Cascadia Mono", Consolas, "Liberation Mono", monospace;
  font-size: 11px;
  line-height: 1.45;
  white-space: pre;
}

@media (max-width: 1160px) {
  .app-shell {
    grid-template-columns: 84px minmax(0, 1fr) 304px;
  }

  .palette {
    padding: 12px 8px;
  }

  .tool-section h2,
  .hint-panel {
    display: none;
  }

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

  .tool-btn,
  .wide-btn {
    justify-content: center;
    padding: 8px;
  }

  .tool-btn span,
  .wide-btn span {
    display: none;
  }
}

@media (max-width: 820px) {
  body {
    overflow: auto;
  }

  .app-shell {
    grid-template-columns: 1fr;
    grid-template-rows: var(--topbar-height) auto minmax(520px, 1fr) auto;
    min-height: 100vh;
    height: auto;
  }

  .topbar {
    position: sticky;
    top: 0;
  }

  .brand span {
    display: none;
  }

  .top-actions {
    overflow-x: auto;
    justify-content: flex-start;
  }

  .palette {
    display: grid;
    grid-template-columns: 160px minmax(0, 1fr) 116px;
    gap: 10px;
    border-right: 0;
    border-bottom: 1px solid var(--line);
    overflow: visible;
  }

  .tool-section + .tool-section {
    margin-top: 0;
  }

  .board-wrap {
    min-height: 520px;
  }

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

  .export-preview textarea {
    height: 150px;
  }
}

@media (max-width: 560px) {
  .app-shell {
    grid-template-rows: auto auto minmax(500px, 1fr) auto;
  }

  .topbar {
    align-items: flex-start;
    flex-direction: column;
  }

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

}

/* Auth gate */
.auth-gate {
  position: fixed;
  inset: 0;
  display: grid;
  place-items: center;
  background:
    radial-gradient(1200px 600px at 20% 20%, color-mix(in srgb, var(--accent) 18%, transparent), transparent 60%),
    radial-gradient(900px 500px at 80% 30%, color-mix(in srgb, var(--orange) 14%, transparent), transparent 55%),
    color-mix(in srgb, var(--bg) 92%, #000000);
  z-index: 80;
}

.auth-card {
  width: min(520px, calc(100vw - 32px));
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  background: var(--panel-strong);
  box-shadow: var(--shadow);
  overflow: hidden;
}

.auth-header {
  padding: 14px 16px;
  border-bottom: 1px solid var(--line);
}

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

.auth-logo {
  width: 44px;
  height: 44px;
  object-fit: contain;
}

.auth-brand strong {
  display: block;
  font-size: 16px;
  font-weight: 780;
}

.auth-brand span {
  display: block;
  font-size: 12px;
  color: var(--muted);
  margin-top: 2px;
}

.auth-body {
  padding: 14px 16px 16px;
}

.auth-tabs {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 8px;
  margin-bottom: 12px;
}

.auth-tab {
  border: 1px solid var(--line);
  border-radius: var(--radius-sm);
  background: var(--panel);
  height: 38px;
  cursor: pointer;
  font-weight: 760;
}

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

.auth-tab.active {
  color: var(--accent-dark);
  border-color: color-mix(in srgb, var(--accent) 40%, var(--line));
  background: color-mix(in srgb, var(--accent-soft) 80%, var(--panel-strong));
}

.auth-form {
  display: grid;
  gap: 10px;
}

.auth-two-col {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 10px;
}

@media (max-width: 480px) {
  .auth-two-col {
    grid-template-columns: 1fr;
  }
}

.auth-form label {
  display: grid;
  gap: 6px;
  color: var(--muted);
  font-size: 12px;
  font-weight: 760;
}

.auth-form input {
  height: 40px;
  padding: 0 10px;
  border: 1px solid var(--line);
  border-radius: var(--radius-sm);
  background: var(--field-surface);
  color: var(--field-ink);
}

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

.mfa-box {
  border: 1px solid var(--line);
  border-radius: var(--radius-md);
  background: var(--panel);
  padding: 12px;
  display: grid;
  gap: 10px;
}

.mfa-qr {
  width: 220px;
  height: 220px;
  border-radius: 12px;
  border: 1px solid var(--line);
  background: #ffffff;
  justify-self: center;
}

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

.mfa-secret-label {
  color: var(--muted);
  font-size: 12px;
  font-weight: 760;
}

.mfa-secret {
  font-family: "Cascadia Mono", Consolas, "Liberation Mono", monospace;
  font-size: 12px;
  padding: 2px 6px;
  border-radius: 8px;
  background: color-mix(in srgb, var(--panel-strong) 75%, var(--line));
  color: var(--ink);
}

.auth-error {
  margin-top: 10px;
  padding: 10px 12px;
  border: 1px solid color-mix(in srgb, var(--red) 45%, var(--line));
  border-radius: var(--radius-sm);
  background: color-mix(in srgb, var(--red) 10%, var(--panel-strong));
  color: color-mix(in srgb, var(--red) 85%, var(--ink));
  font-size: 13px;
  font-weight: 700;
}

/* Marquee selection */
.marquee {
  position: absolute;
  z-index: 5;
  border: 1px dashed rgba(19, 124, 130, 0.9);
  background: rgba(19, 124, 130, 0.12);
  border-radius: 6px;
  pointer-events: none;
}


/* Advanced metadata blocks */
.advanced-block {
  margin-top: 10px;
  padding-top: 6px;
  border-top: 1px dashed rgba(35, 65, 82, 0.18);
}

.advanced-block summary {
  cursor: pointer;
  font-weight: 600;
  color: var(--muted);
  font-size: 12px;
  user-select: none;
}

.advanced-fields {
  display: grid;
  gap: 10px;
  margin-top: 10px;
}

.advanced-group {
  font-size: 11px;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: rgba(93, 105, 112, 0.9);
  margin-top: 4px;
}

.mini-btn {
  border: 1px solid var(--line);
  background: #ffffff;
  color: var(--muted);
  border-radius: 10px;
  padding: 6px 10px;
  font-size: 12px;
  width: fit-content;
}

.mini-btn:hover {
  border-color: rgba(19, 124, 130, 0.4);
}

.advanced-field {
  display: grid;
  gap: 6px;
}

.advanced-label {
  font-size: 12px;
  color: var(--muted);
}

.advanced-hint {
  font-size: 11px;
  color: rgba(93, 105, 112, 0.95);
}