/* SystemFlow v2 - motion polish, precise spacing
   Tokens defined in styles.css. No duplicate :root here.
*/

/* ---------- Ambient body background - neutral, not blue --------- */
body {
  background: var(--bg);
  transition: background 0.25s ease, color 0.25s ease;
}

/* ---------- App entry ---------- */
.app {
  background: transparent;
  animation: appFadeIn 0.5s var(--ease-out);
}
@keyframes appFadeIn {
  from { opacity: 0; transform: scale(0.995); }
  to   { opacity: 1; transform: scale(1); }
}

/* ---------- Header - theme-aware ---------- */
.header {
  background: var(--surface);
  border-bottom: 1px solid var(--border2);
  transition: background 0.25s ease, border-color 0.25s ease;
}
[data-theme="dark"] .header,
html.dark .header {
  background: rgba(26,27,29,0.92);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
}
[data-theme="light"] .header,
html.light .header {
  background: rgba(255,255,255,0.92);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  box-shadow: 0 1px 0 rgba(0,0,0,0.06);
}

.brand-logo { position: relative; }
.brand-name { letter-spacing: -0.02em; font-weight: 800; }
.brand-name .accent { color: var(--accent); }

.header-chip {
  background: var(--surface2);
  border: 1px solid var(--border2);
  transition: border-color var(--t), background var(--t);
}
.header-chip:hover { border-color: var(--border3); }

/* ---------- Panels - theme-aware ---------- */
.left-panel, .right-panel, .bottom-panel {
  background: var(--surface);
  transition: background 0.25s ease;
}
[data-theme="dark"] .left-panel,
[data-theme="dark"] .right-panel,
[data-theme="dark"] .bottom-panel,
html.dark .left-panel,
html.dark .right-panel,
html.dark .bottom-panel {
  background: rgba(26,27,29,0.92);
  backdrop-filter: blur(12px);
  border-color: rgba(255,255,255,0.08);
}
[data-theme="light"] .left-panel,
[data-theme="light"] .right-panel,
[data-theme="light"] .bottom-panel,
html.light .left-panel,
html.light .right-panel,
html.light .bottom-panel {
  background: rgba(255,255,255,0.92);
  backdrop-filter: blur(12px);
}

/* 2D node theme adaptation */
[data-theme="light"] .sys-node,
html.light .sys-node {
  background: rgba(255,255,255,0.97);
  border-color: rgba(0,0,0,0.10);
  box-shadow: 0 1px 4px rgba(0,0,0,0.08);
  color: var(--text);
}
[data-theme="light"] .sys-node-label,
html.light .sys-node-label { color: #1a1c1c; }
[data-theme="light"] .metric-key,
html.light .metric-key { color: rgba(0,0,0,0.35); }
[data-theme="light"] .metric-val,
html.light .metric-val { color: #1a1c1c; }
[data-theme="light"] .load-track,
html.light .load-track { background: rgba(0,0,0,0.08); }

/* Canvas background: theme-aware */
[data-theme="light"] .iso-canvas-svg,
html.light .iso-canvas-svg { background: var(--canvas-bg) !important; }
[data-theme="light"] .world-grid,
html.light .world-grid {
  background-image: radial-gradient(circle, rgba(0,0,0,0.08) 1px, transparent 1.5px);
}

/* Dark theme nodes: keep category color as background */
[data-theme="dark"] .sys-node,
html.dark .sys-node {
  /* background stays as var(--node-color) set in styles.css via inline --node-color var */
  border-color: rgba(255,255,255,0.18);
  box-shadow: 0 4px 14px rgba(0,0,0,0.4), 0 0 18px var(--node-glow, rgba(99,102,241,0.3));
  color: var(--text);
}
[data-theme="dark"] .sys-node.hovered,
[data-theme="dark"] .sys-node:hover,
html.dark .sys-node.hovered,
html.dark .sys-node:hover {
  border-color: rgba(255,255,255,0.55);
  box-shadow:
    0 8px 24px rgba(0,0,0,0.55),
    0 0 32px var(--node-glow, rgba(99,102,241,0.4));
}
[data-theme="dark"] .sys-node-label,
html.dark .sys-node-label { color: rgba(255,255,255,0.95); }
[data-theme="dark"] .metric-key,
html.dark .metric-key { color: rgba(255,255,255,0.28); }
[data-theme="dark"] .metric-val,
html.dark .metric-val { color: #e7e1de; }
[data-theme="dark"] .load-track,
html.dark .load-track { background: rgba(255,255,255,0.07); }
[data-theme="dark"] .sys-node-header,
html.dark .sys-node-header {
  background: rgba(255,255,255,0.03);
  border-bottom-color: rgba(255,255,255,0.06);
}
[data-theme="dark"] .sys-node-body,
html.dark .sys-node-body { background: rgba(0,0,0,0.20); }
[data-theme="dark"] .iso-canvas-svg,
html.dark .iso-canvas-svg { background: var(--canvas-bg) !important; }
[data-theme="dark"] .world-grid,
html.dark .world-grid {
  background-image: radial-gradient(circle, rgba(255,255,255,0.05) 1px, transparent 1.5px);
}

.metric-value {
  font-variant-numeric: tabular-nums;
  transition: color 0.18s ease;
}
.metric-value.count-flash {
  animation: countFlash 0.45s ease;
}
@keyframes countFlash {
  0%   { transform: translateY(-3px); opacity: 0.4; }
  100% { transform: translateY(0); opacity: 1; }
}

/* ---------- Panels: subtle glass ---------- */
.left-panel, .right-panel, .bottom-panel {
  background: var(--surface);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
}
.left-panel { border-right: 1px solid var(--border2); }
.right-panel { border-left: 1px solid var(--border2); }
.bottom-panel { border-top: 1px solid var(--border2); }

/* ═══════════════════════════════════════════════════════════════════
   CANVAS FOUNDATION
═══════════════════════════════════════════════════════════════════ */
.canvas-area {
  background: var(--canvas-bg, #FFFFFF);
  background-image: none;
  user-select: none;
  position: relative;
}

.iso-canvas-svg {
  display: block;
  width: 100%;
  height: 100%;
}

/* ═══════════════════════════════════════════════════════════════════
   2D / 3D MODE TOGGLE
═══════════════════════════════════════════════════════════════════ */
.canvas-mode-toggle {
  display: flex;
  align-items: center;
  gap: 2px;
  background: rgba(255,255,255,0.04);
  border: 1px solid rgba(255,255,255,0.08);
  border-radius: 8px;
  padding: 3px;
  backdrop-filter: blur(8px);
}

.mode-btn {
  display: flex;
  align-items: center;
  gap: 5px;
  padding: 5px 10px;
  border-radius: 6px;
  border: none;
  background: transparent;
  color: rgba(213,224,255,0.45);
  font-family: "Geist Mono", ui-monospace, SFMono-Regular, Menlo, monospace;
  font-size: 10px;
  font-weight: 700;
  letter-spacing: 0.06em;
  cursor: pointer;
  transition: all 0.18s ease;
  white-space: nowrap;
}

.mode-btn:hover {
  color: rgba(213,224,255,0.8);
  background: rgba(255,255,255,0.06);
}

.mode-btn.active {
  background: var(--accent-dim);
  color: var(--accent);
  border: 1px solid rgba(220, 90, 45, 0.35);
  box-shadow: inset 0 1px 0 rgba(255,255,255,0.06);
}

.mode-btn svg { flex-shrink: 0; }

/* ═══════════════════════════════════════════════════════════════════
   3D ISOMETRIC - ANIMATIONS
═══════════════════════════════════════════════════════════════════ */
.iso-node-group {
  /* GPU-friendly hover lift. transform-box keeps the origin on the node
     itself so the whole group rises as one solid object. */
  transform-box: fill-box;
  transform-origin: center;
  transition: transform 0.18s cubic-bezier(0.22, 1, 0.36, 1),
              filter 0.18s ease;
  will-change: transform;
}
.iso-node-group:hover {
  transform: translateY(-4px);
  /* Gentle premium lift: stronger contact shadow + slight brightness. */
  filter: brightness(1.06)
          drop-shadow(0 10px 12px rgba(0, 0, 0, 0.28));
  cursor: pointer;
}

.iso-node-group .iso-edge-handle {
  opacity: 0;
  transition: opacity 0.15s ease;
}
.iso-node-group:hover .iso-edge-handle {
  opacity: 1 !important;
}

/* Selection: smooth, calm glow pulse layered on top of the SVG glow-select
   filter. Driven by a drop-shadow so it stays GPU-friendly. */
@keyframes iso-select-pulse {
  0%, 100% { filter: drop-shadow(0 0 4px rgba(220, 90, 45, 0.55)); }
  50%      { filter: drop-shadow(0 0 11px rgba(220, 90, 45, 0.95)); }
}
.iso-node-group.is-selected {
  animation: iso-select-pulse 1.8s ease-in-out infinite;
}
.iso-node-group.is-selected:hover {
  transform: translateY(-4px);
}

@keyframes iso-crash-pulse {
  0%, 100% { opacity: 1; }
  50%       { opacity: 0.35; }
}
.iso-node-crashed {
  animation: iso-crash-pulse 0.65s ease-in-out infinite;
}

@keyframes iso-ring-spin {
  from { stroke-dashoffset: 0; }
  to   { stroke-dashoffset: -60; }
}
.iso-bottleneck-ring {
  stroke-dasharray: 12 6;
  animation: iso-ring-spin 1.4s linear infinite;
}

/* Respect reduced-motion: keep static states, drop loops + lift transition. */
@media (prefers-reduced-motion: reduce) {
  .iso-node-group {
    transition: none;
  }
  .iso-node-group:hover {
    transform: none;
    filter: brightness(1.05);
  }
  .iso-node-group.is-selected,
  .iso-node-crashed,
  .iso-bottleneck-ring {
    animation: none;
  }
}

/* ═══════════════════════════════════════════════════════════════════
   2D NODES - REFINED GLASSMORPHIC DARK CARDS
═══════════════════════════════════════════════════════════════════ */
.node-accent-bar {
  position: absolute;
  left: 0; top: 6px; bottom: 6px;
  width: 3px;
  border-radius: 0 2px 2px 0;
  background: var(--node-color, #c4503d);
  box-shadow: 0 0 10px var(--node-glow, rgba(220,90,45,0.5));
  transition: box-shadow 0.2s ease;
}

/* Metric pills */
.sys-node-metrics {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 3px 6px;
  margin-top: 2px;
}

.metric-pill {
  display: flex;
  align-items: baseline;
  gap: 4px;
}
.metric-key {
  font-size: 8px;
  font-family: "Geist Mono", ui-monospace, SFMono-Regular, Menlo, monospace;
  color: rgba(213,224,255,0.28);
  letter-spacing: 0.04em;
  text-transform: uppercase;
}
.metric-val {
  font-size: 10px;
  font-family: "Geist Mono", ui-monospace, SFMono-Regular, Menlo, monospace;
  color: rgba(213,224,255,0.82);
  font-weight: 600;
}

/* Load bar */
.load-track {
  height: 3px;
  background: rgba(255,255,255,0.07);
  border-radius: 2px;
  overflow: hidden;
  margin-bottom: 6px;
}
.load-fill {
  height: 100%;
  border-radius: 2px;
  transition: width 0.3s ease, background 0.3s ease;
}

.world-grid {
  position: absolute;
  inset: 0;
  background-image:
    radial-gradient(circle, rgba(255,255,255,0.05) 1px, transparent 1.5px);
  background-size: 22px 22px;
  pointer-events: none;
  transition: background-size 0.06s linear;
}

/* Override default canvas background so world-grid is the only grid */
.canvas-area { background-image: none !important; }

/* ---------- Nodes: spring entry, hover lift, glass surface ---------- */
.sys-node {
  background: linear-gradient(180deg, rgba(255,255,255,0.96), rgba(249,249,249,0.96));
  border: 1px solid var(--border);
  border-radius: 12px;
  box-shadow:
    0 1px 0 rgba(255,255,255,0.8) inset,
    0 8px 24px rgba(0,0,0,0.08);
  transition: transform var(--spring), box-shadow var(--t), border-color var(--t);
  animation: nodeEnter 0.42s cubic-bezier(0.34, 1.56, 0.64, 1) both;
  overflow: visible; /* allow glow */
}
@keyframes nodeEnter {
  0%   { transform: scale(0.5); opacity: 0; filter: blur(4px); }
  100% { transform: scale(1);   opacity: 1; filter: blur(0); }
}
.sys-node.hovered,
.sys-node:hover {
  border-color: var(--node-color, var(--accent));
  box-shadow:
    0 1px 0 rgba(255,255,255,0.8) inset,
    0 12px 36px rgba(0,0,0,0.12),
    0 0 32px var(--node-glow, var(--accent-glow));
  /* transform: translateY(-2px) intentionally removed - this replaced the
     positioning translate3d(--tx,--ty) from styles.css's base .sys-node rule
     wholesale (same property, this selector's higher specificity wins),
     which would have snapped any hovered node to the canvas origin plus
     a -2px offset. Nothing here needs its own transform. */
}
.sys-node.selected {
  border-color: var(--accent);
  box-shadow:
    0 1px 0 rgba(255,255,255,0.8) inset,
    0 0 0 2px var(--accent-dim),
    0 0 16px var(--accent-glow),
    0 8px 24px rgba(0,0,0,0.1);
}
.sys-node.failed {
  /* animation intentionally omitted - nodeShake (below) set a bare
     transform: translateX(...) with no reference to --tx/--ty, which would
     replace the element's real position with just that shake offset from
     the canvas origin. Not currently reachable (SysNode's `crashed` const
     only checks status==='crashed', never adds a .failed class) but left
     disarmed rather than relying on that staying true. */
  border-color: var(--red);
  box-shadow: 0 0 0 1px var(--red), 0 0 20px rgba(248,113,113,0.4), 0 8px 24px rgba(0,0,0,0.1);
}

.sys-node-header {
  background: linear-gradient(90deg, rgba(229,229,229,0.3), transparent);
  border-bottom: 1px solid var(--border);
}
.sys-node-body {
  background: rgba(0,0,0,0.02);
}
.sys-node-icon {
  filter: drop-shadow(0 0 6px var(--node-glow, transparent));
}

/* Handles: bigger, glowy on hover */
.handle {
  width: 10px;
  height: 10px;
  background: var(--surface-solid);
  border: 2px solid var(--node-color, var(--accent));
  opacity: 0;
  transition: opacity var(--t), transform var(--t), box-shadow var(--t);
}
.sys-node.hovered .handle,
.sys-node.selected .handle,
.sys-node:hover .handle { opacity: 1; }
.handle:hover {
  transform: translateY(-50%) scale(1.4);
  background: var(--node-color, var(--accent));
  box-shadow: 0 0 16px var(--node-color, var(--accent));
}
.handle.left  { left: -6px; }
.handle.right { right: -6px; }

/* ---------- Edges ---------- */
.edge-path {
  transition: stroke-width 0.18s, opacity 0.18s;
}
.edge-path.flowing {
  stroke-dasharray: 6 4;
  animation: dashFlow 1.2s linear infinite;
}
@keyframes dashFlow {
  to { stroke-dashoffset: -100; }
}
.pending-edge {
  animation: dashFlow 0.6s linear infinite;
}
.particle {
  fill: var(--accent);
  filter: drop-shadow(0 0 8px var(--accent)) drop-shadow(0 0 12px rgba(220,90,45,0.5));
}

/* ---------- Canvas controls (zoom) ---------- */
.canvas-controls {
  background: var(--surface);
  backdrop-filter: blur(10px);
  border: 1px solid var(--border2);
  border-radius: 10px;
  box-shadow: 0 6px 20px rgba(0,0,0,0.08);
  padding: 0;
}
.canvas-controls button {
  width: 34px;
  height: 34px;
  transition: var(--t);
}
.canvas-controls button:hover {
  color: var(--accent);
  background: var(--surface2);
}
.zoom-readout {
  font: 600 10px/1 var(--mono);
  color: var(--text-muted);
  text-align: center;
  padding: 4px 0;
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
}

.minimap {
  background: var(--surface);
  backdrop-filter: blur(10px);
  border: 1px solid var(--border2);
  border-radius: 10px;
  box-shadow: 0 6px 20px rgba(0,0,0,0.08);
  padding: 6px;
  overflow: hidden;
}
.minimap-empty {
  padding: 8px;
  font: 600 10px/1.4 var(--mono);
  color: var(--text-muted);
  text-align: center;
}

/* ---------- Canvas empty state ---------- */
/* Explicit edges + transform:none - styles.css also styles .canvas-empty with
   top/left 50% + translate(-50%,-50%); when that transform leaked onto this
   full-bleed flexbox the whole hint block shifted to the top-left corner and
   hid behind the panels. Centered between the floating side panels. */
.canvas-empty {
  position: absolute;
  top: 0;
  bottom: var(--sf-bottom-h, 0px);
  left: var(--sf-left-w, 0px);
  right: var(--sf-right-w, 0px);
  transform: none;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-direction: column;
  pointer-events: none;
  text-align: center;
  z-index: 3;
}
.canvas-empty-glow {
  position: absolute;
  width: 600px;
  height: 600px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(220, 90, 45, 0.10), transparent 60%);
  animation: pulseSlow 4s ease-in-out infinite;
}
@keyframes pulseSlow {
  0%, 100% { transform: scale(1); opacity: 0.6; }
  50%      { transform: scale(1.1); opacity: 1; }
}
.canvas-empty h2 {
  font: 800 28px/1 var(--sans);
  letter-spacing: -0.02em;
  background: linear-gradient(90deg, var(--text), var(--text-sec));
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
  color: transparent;
  margin: 0 0 10px 0;
}
.canvas-empty p {
  color: var(--text-sec);
  font-size: 14px;
  margin: 0 0 20px 0;
}
.canvas-empty kbd {
  display: inline-block;
  padding: 2px 6px;
  margin: 0 2px;
  background: var(--surface2-solid);
  border: 1px solid var(--border2);
  border-radius: 4px;
  font: 700 11px/1 var(--mono);
  color: var(--accent);
}
.empty-hints {
  display: flex;
  gap: 14px;
  font: 500 11px/1 var(--mono);
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.08em;
}

/* ---------- Context menu ---------- */
.context-menu {
  position: fixed;
  background: var(--surface);
  backdrop-filter: blur(16px);
  border: 1px solid var(--border2);
  border-radius: 8px;
  padding: 4px;
  min-width: 180px;
  z-index: 500;
  box-shadow: 0 12px 32px rgba(0,0,0,0.12);
  animation: ctxIn 0.16s var(--ease-out);
}
@keyframes ctxIn {
  from { opacity: 0; transform: scale(0.95) translateY(-4px); }
  to   { opacity: 1; transform: scale(1) translateY(0); }
}
.context-menu button {
  display: flex;
  align-items: center;
  gap: 10px;
  width: 100%;
  padding: 8px 10px;
  border-radius: 5px;
  color: var(--text-sec);
  font-size: 12.5px;
  transition: var(--t);
}
.context-menu button svg { width: 13px; height: 13px; }
.context-menu button:hover { background: var(--surface3); color: var(--text); }
.context-menu button.danger:hover { background: var(--red-dim); color: var(--red); }
.context-menu .kbd-mini {
  margin-left: auto;
  font: 600 10px/1 var(--mono);
  color: var(--text-muted);
}
.ctx-divider { height: 1px; background: var(--border); margin: 4px 6px; }

/* ---------- Left palette: drag feedback ---------- */
.node-item {
  border-radius: 6px;
  margin: 2px 6px;
  padding: 8px 10px;
  border-left-width: 3px;
  transition: transform var(--t), background var(--t), border-color var(--t), box-shadow var(--t);
}
.node-item:hover {
  transform: translateX(2px);
  background: linear-gradient(90deg, var(--cat-dim), transparent);
  border-left-color: var(--cat-color, var(--accent));
  box-shadow: 0 0 0 1px rgba(0,0,0,0.04);
}
.node-item:hover .node-icon-wrap {
  transform: scale(1.08);
  box-shadow: 0 0 18px var(--cat-glow, var(--accent-glow));
}
.node-icon-wrap { transition: transform var(--spring), box-shadow var(--t), background var(--t); }

/* Cat pill polish */
.cat-pill {
  font-size: 10.5px;
  font-weight: 600;
  transition: transform var(--t), background var(--t), color var(--t), border-color var(--t);
}
.cat-pill:hover { transform: translateY(-1px); }
.cat-pill.active {
  box-shadow: 0 0 0 1px var(--cat-color), 0 4px 12px var(--cat-dim);
}

/* group headers float gracefully */
.node-group-header {
  background: linear-gradient(180deg, rgba(255,255,255,0.95), rgba(249,249,249,0.85));
  backdrop-filter: blur(8px);
}
[data-theme="dark"] .node-group-header,
html.dark .node-group-header {
  background: linear-gradient(180deg, rgba(26,27,29,0.97), rgba(18,19,20,0.92));
}

/* ---------- Buttons: motion polish ---------- */
.btn, .sim-btn, .pattern-btn, .toggle-chip {
  transition: transform 0.12s, box-shadow var(--t), border-color var(--t), background var(--t), color var(--t);
}
.btn:hover:not(:disabled), .sim-btn:hover:not(:disabled), .pattern-btn:hover, .toggle-chip:hover {
  transform: translateY(-1px);
}
.btn:active:not(:disabled), .sim-btn:active:not(:disabled) { transform: translateY(0); }

.btn-primary {
  background: linear-gradient(135deg, #c4503d, #a8402f 130%);
  border-color: transparent;
  color: white;
  font-weight: 700;
  box-shadow: 0 4px 14px rgba(196,80,61,0.35);
}
.btn-primary:hover { box-shadow: 0 6px 20px rgba(196,80,61,0.55); }

/* Sim run button - green primary */
.sim-btn[style*="--btn-color: var(--green)"] {
  background: linear-gradient(135deg, var(--green), #16a34a 130%);
  border-color: transparent;
  color: white;
}
.sim-btn[style*="--btn-color: var(--green)"]:hover {
  box-shadow: 0 6px 20px rgba(34, 197, 94, 0.5);
}
.sim-btn[style*="--btn-color: var(--red)"] {
  background: rgba(248, 113, 113, 0.1);
  color: var(--red);
}
.sim-btn[style*="--btn-color: var(--red)"]:hover {
  background: rgba(248, 113, 113, 0.18);
  box-shadow: 0 4px 14px rgba(248, 113, 113, 0.3);
}

/* ---------- Premium / Pro elements ---------- */
.pro-chip {
  background: linear-gradient(135deg, var(--gold), var(--accent2));
  border-color: var(--gold);
  color: #0a0a0f;
  letter-spacing: 0.1em;
  box-shadow: 0 0 12px rgba(252, 211, 77, 0.4);
}
.mini-badge.amber {
  background: linear-gradient(135deg, var(--gold-dim), rgba(245, 158, 11, 0.2));
  border: 1px solid rgba(252, 211, 77, 0.45);
  color: var(--gold);
}

.node-item[style*="opacity: 0.55"] {
  position: relative;
}
.node-item[style*="opacity: 0.55"]::after {
  content: "🔒";
  position: absolute;
  right: 8px;
  top: 50%;
  transform: translateY(-50%);
  font-size: 10px;
  opacity: 0.6;
}

/* ---------- Premium upgrade modal ---------- */
.premium-modal {
  width: 560px;
  background:
    radial-gradient(circle at 50% -20%, rgba(252, 211, 77, 0.20), transparent 50%),
    radial-gradient(circle at 50% 120%, rgba(220, 90, 45, 0.20), transparent 50%),
    #FAFAFA;
  border: 1px solid rgba(252, 211, 77, 0.3);
  border-radius: 16px;
  padding: 0;
  box-shadow:
    0 0 0 1px rgba(0,0,0,0.06),
    0 30px 80px rgba(0,0,0,0.12),
    0 0 60px rgba(252, 211, 77, 0.2);
  overflow: hidden;
  animation: premiumIn 0.45s cubic-bezier(0.34, 1.56, 0.64, 1);
}
@keyframes premiumIn {
  from { opacity: 0; transform: scale(0.92) translateY(10px); }
  to   { opacity: 1; transform: scale(1) translateY(0); }
}

.premium-aurora {
  position: relative;
  height: 74px;
  background:
    radial-gradient(circle at 30% 50%, rgba(192, 132, 252, 0.35), transparent 50%),
    radial-gradient(circle at 70% 50%, rgba(220, 90, 45, 0.35), transparent 50%),
    radial-gradient(circle at 50% 50%, rgba(252, 211, 77, 0.25), transparent 60%);
  filter: blur(0.5px);
  display: flex;
  align-items: center;
  justify-content: center;
}
.premium-aurora::before {
  content: "";
  position: absolute;
  inset: 0;
  background: radial-gradient(ellipse at center, transparent 40%, #FAFAFA 80%);
}
.premium-crown {
  font-size: 30px;
  filter: drop-shadow(0 0 14px rgba(252, 211, 77, 0.8));
  z-index: 1;
  animation: crownFloat 3s ease-in-out infinite;
}
@keyframes crownFloat {
  0%, 100% { transform: translateY(0); }
  50%      { transform: translateY(-6px); }
}

.premium-body { padding: 16px 24px 22px; text-align: center; }
.premium-body h2 {
  font: 800 20px/1.15 var(--sans);
  letter-spacing: -0.02em;
  margin: 0 0 5px;
  background: linear-gradient(135deg, var(--gold), #c4503d 130%);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
  color: transparent;
}
.premium-body .premium-sub {
  font-size: 13px;
  color: var(--text-sec);
  margin: 0 0 18px;
}

.premium-tier {
  display: inline-flex;
  align-items: baseline;
  gap: 6px;
  padding: 6px 14px;
  border-radius: 99px;
  border: 1px solid rgba(252, 211, 77, 0.4);
  background: rgba(252, 211, 77, 0.06);
  margin-bottom: 18px;
}
.premium-tier .price {
  font: 800 22px/1 var(--mono);
  background: linear-gradient(135deg, var(--gold), #fb923c);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
  color: transparent;
}
.premium-tier .per { font: 600 11px/1 var(--mono); color: var(--text-muted); }

.premium-features {
  text-align: left;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 10px;
  margin: 0 0 22px;
}
.premium-feat {
  display: flex;
  align-items: flex-start;
  gap: 9px;
  padding: 9px 11px;
  background: rgba(0,0,0,0.02);
  border: 1px solid var(--border);
  border-radius: 8px;
  transition: var(--t);
}
.premium-feat:hover { border-color: var(--gold); background: rgba(252, 211, 77, 0.05); }
.premium-feat .check {
  width: 18px; height: 18px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--gold), var(--accent2));
  display: flex; align-items: center; justify-content: center;
  flex-shrink: 0;
  margin-top: 1px;
}
.premium-feat .check svg { width: 12px; height: 12px; color: #0a0a0f; }
.premium-feat .feat-text { font-size: 11.5px; line-height: 1.35; color: var(--text-sec); }
.premium-feat .feat-text b { color: var(--text); display: block; font-size: 12px; margin-bottom: 1px; }

.premium-actions {
  display: flex;
  gap: 10px;
  justify-content: center;
}
.premium-actions .btn { padding: 11px 18px; font-size: 12px; }
.btn-premium {
  background: linear-gradient(135deg, var(--gold), var(--accent2));
  border: 1px solid var(--gold);
  color: #0a0a0f;
  font-weight: 800;
  box-shadow: 0 6px 20px rgba(252, 211, 77, 0.4);
}
.btn-premium:hover { box-shadow: 0 8px 28px rgba(252, 211, 77, 0.6); }

.premium-trust {
  display: flex; gap: 16px; justify-content: center;
  margin-top: 16px;
  font: 500 10.5px/1 var(--mono);
  color: var(--text-muted);
}
.premium-trust span { display: inline-flex; align-items: center; gap: 4px; }

/* ---------- Right panel: tab bar polish ---------- */
.tab-btn {
  position: relative;
  transition: color var(--t), background var(--t);
}
.tab-btn:hover { background: var(--surface2); }
.tab-btn.active {
  background: linear-gradient(180deg, var(--accent-dim), transparent);
  border-bottom: 2px solid var(--accent);
  color: var(--accent);
}
.tab-btn.active::before {
  content: "";
  position: absolute;
  inset: 0 0 -2px 0;
  background: radial-gradient(circle at center bottom, rgba(220,90,45,0.15), transparent 70%);
  pointer-events: none;
  opacity: 0.5;
}

/* Tab content fade-up */
.tab-content {
  animation: tabIn 0.22s var(--ease-out);
}
@keyframes tabIn {
  from { opacity: 0; transform: translateY(6px); }
  to   { opacity: 1; transform: translateY(0); }
}

/* ---------- Sparkline chart cards ---------- */
.chart-card {
  background: var(--surface2);
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 10px 12px;
  margin-bottom: 10px;
  transition: var(--t);
}
.chart-card:hover { border-color: var(--border3); }
.percentile-card {
  background: var(--surface2);
  border: 1px solid var(--border);
  transition: var(--t);
}
.percentile-card:hover { border-color: var(--border3); transform: translateY(-1px); }

/* ---------- Bottom ribbon: status pill ---------- */
.ribbon {
  background: var(--surface);
}
.ribbon-tab {
  position: relative;
  font-weight: 700;
}
.ribbon-tab.active::after {
  content: "";
  position: absolute;
  left: 12px; right: 12px; bottom: -1px;
  height: 2px;
  background: linear-gradient(90deg, transparent, var(--accent), transparent);
  filter: drop-shadow(0 0 6px var(--accent));
}
.ribbon-status {
  padding: 4px 10px;
  border-radius: 99px;
  border: 1px solid var(--border);
  margin-right: 12px;
  background: rgba(0,0,0,0.03);
}
.ribbon-status.running {
  border-color: rgba(34, 197, 94, 0.4);
  background: rgba(34, 197, 94, 0.08);
}
.ribbon-status.paused {
  border-color: rgba(251, 191, 36, 0.4);
  background: rgba(251, 191, 36, 0.08);
}

/* Test cards + profile cards: lift on hover */
.testcard, .profile-card, .template-card {
  transition: transform var(--spring), border-color var(--t), background var(--t), box-shadow var(--t);
}
.testcard:hover, .profile-card:hover, .template-card:hover {
  transform: translateY(-3px);
  box-shadow: 0 10px 30px rgba(0,0,0,0.08);
}

/* ---------- Status dots: better pulses ---------- */
.status-dot.healthy { background: var(--green); box-shadow: 0 0 10px var(--green); }
.status-dot.overloaded { background: var(--amber); box-shadow: 0 0 12px var(--amber); }
.status-dot.failed { background: var(--red); box-shadow: 0 0 14px var(--red); }

/* ---------- Tour & modal polish ---------- */
.tour-card {
  background: var(--surface);
  backdrop-filter: blur(20px);
  border: 1px solid var(--accent);
  box-shadow:
    0 0 0 4px var(--accent-dim),
    0 20px 50px rgba(0,0,0,0.1),
    0 0 40px var(--accent-glow);
}
.tour-overlay {
  background: rgba(10,10,10,0.4);
  backdrop-filter: blur(2px);
}

.modal-overlay {
  background: rgba(10,10,10,0.55);
  backdrop-filter: blur(8px);
}

/* ---------- Counter motion for sim counters ---------- */
.sim-counters .metric-value {
  font-variant-numeric: tabular-nums;
  transition: color 0.2s;
}

/* ---------- Dropdown polish ---------- */
.dropdown {
  background: var(--surface);
  backdrop-filter: blur(20px);
  border: 1px solid var(--border2);
  box-shadow: 0 20px 50px rgba(0,0,0,0.1);
}

/* ---------- Scrollbar polish ---------- */
::-webkit-scrollbar { width: 6px; height: 6px; }
::-webkit-scrollbar-thumb {
  background: linear-gradient(180deg, var(--border2), var(--border3));
  border-radius: 99px;
}
::-webkit-scrollbar-thumb:hover { background: var(--accent); }

/* ---------- Pro upgrade banner in left panel ---------- */
.pro-upsell-banner {
  margin: 10px 12px;
  padding: 14px;
  background:
    radial-gradient(circle at 100% 0%, rgba(252, 211, 77, 0.15), transparent 60%),
    linear-gradient(135deg, rgba(252, 211, 77, 0.08), rgba(220, 90, 45, 0.06));
  border: 1px solid rgba(252, 211, 77, 0.3);
  border-radius: 10px;
  cursor: pointer;
  transition: var(--t);
  position: relative;
  overflow: hidden;
}
.pro-upsell-banner::before {
  content: "";
  position: absolute;
  inset: -50% -50% auto auto;
  width: 100%; height: 100%;
  background: radial-gradient(circle, rgba(252, 211, 77, 0.25), transparent 60%);
  pointer-events: none;
}
.pro-upsell-banner:hover {
  border-color: var(--gold);
  transform: translateY(-1px);
  box-shadow: 0 6px 16px rgba(252, 211, 77, 0.25);
}
.pro-upsell-banner h4 {
  margin: 0 0 4px;
  font: 800 12.5px/1.2 var(--sans);
  display: flex; align-items: center; gap: 6px;
  background: linear-gradient(90deg, var(--gold), #fb923c);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
  color: transparent;
}
.pro-upsell-banner p {
  margin: 0;
  font: 500 11px/1.4 var(--sans);
  color: var(--text-sec);
}
.pro-upsell-banner .gold-arrow {
  position: absolute;
  right: 12px; top: 50%;
  transform: translateY(-50%);
  color: var(--gold);
}

/* ---------- High traffic modal extra polish ---------- */
.high-traffic-card {
  background:
    radial-gradient(circle at 50% 0%, rgba(248, 113, 113, 0.2), transparent 60%),
    var(--surface);
  border: 1px solid var(--red);
  box-shadow: 0 0 60px rgba(248, 113, 113, 0.15), 0 30px 80px rgba(0,0,0,0.1);
}
.warn-icon {
  animation: warnPulse 1.5s ease-in-out infinite;
}
@keyframes warnPulse {
  0%, 100% { transform: scale(1); filter: drop-shadow(0 0 12px var(--red)); }
  50%      { transform: scale(1.08); filter: drop-shadow(0 0 22px var(--red)); }
}

/* ---------- Logo spinning effect smoother ---------- */
.logo-spinning {
  animation: spin 4s cubic-bezier(0.65, 0, 0.35, 1) infinite;
}

/* ---------- Collapse tabs polish ---------- */
.collapse-tab {
  background: var(--surface2);
  backdrop-filter: blur(8px);
}
.collapse-tab:hover {
  color: var(--accent);
  box-shadow: 0 0 12px var(--accent-dim);
}

/* ---------- Slider thumb glow ---------- */
.slider::-webkit-slider-thumb {
  background: var(--accent);
  box-shadow: 0 0 0 2px var(--bg), 0 0 12px var(--accent-glow);
}
.slider::-webkit-slider-thumb:hover {
  box-shadow: 0 0 0 2px var(--bg), 0 0 20px var(--accent);
}

/* ---------- Findings cards ---------- */
.finding {
  background: var(--surface2);
  border: 1px solid var(--border);
  border-left: 3px solid var(--severity-color, var(--accent));
  transition: var(--t);
}
.finding:hover {
  border-color: var(--border3);
  border-left-color: var(--severity-color, var(--accent));
}

/* ---------- Header chip rate pulse ---------- */
.pattern-chip {
  background: linear-gradient(135deg, var(--accent-dim), rgba(220, 90, 45, 0.1));
  border-color: rgba(220, 90, 45, 0.5);
}

/* ═══════════════════════════════════════════════════════════════════════════
   SIMULATION INTELLIGENCE
   ═══════════════════════════════════════════════════════════════════════════ */

/* ---------- Crashed node - permanent until sim stops ---------- */
@keyframes crashedFlicker {
  0%, 100% { opacity: 1; }
  45%       { opacity: 0.85; }
  50%       { opacity: 0.6; }
  55%       { opacity: 0.85; }
}
.sys-node.crashed {
  /* animation intentionally omitted: the live component sets its own inline
     `nodeCrashPulse` (styles.css) which keeps translate3d(--tx,--ty) in every
     keyframe. This rule used to also declare `animation: crashedFlicker...`,
     which - despite not being !important - was observed winning the cascade
     over the inline style in practice, so it's removed here rather than left
     to fight the position-preserving animation for the same property. */
  border-color: #ef4444 !important;
  background: linear-gradient(135deg, rgba(239,68,68,0.18), rgba(250,250,250,0.95)) !important;
  box-shadow:
    0 0 0 2px rgba(239,68,68,0.5),
    0 0 32px rgba(239,68,68,0.5),
    0 8px 24px rgba(0,0,0,0.1) !important;
}
.sys-node.crashed::after {
  content: "💥 CRASHED";
  position: absolute;
  top: -22px; left: 50%; transform: translateX(-50%);
  background: #ef4444; color: #fff;
  font: 700 9px/1 var(--mono);
  padding: 3px 7px; border-radius: 3px;
  white-space: nowrap; pointer-events: none;
  z-index: 10;
  letter-spacing: 0.04em;
}
.sys-node.crashed .load-fill { background: #ef4444 !important; }
.sys-node.crashed .status-dot { background: #ef4444; animation: pulse 0.6s infinite; }

/* ---------- Invalid connection: red node state ---------- */
.sys-node.misconfigured {
  border-color: #ef4444 !important;
  background: linear-gradient(135deg, rgba(239,68,68,0.22), rgba(250,250,250,0.96)) !important;
  box-shadow:
    0 0 0 2px rgba(239,68,68,0.65),
    0 0 28px rgba(239,68,68,0.55),
    0 8px 24px rgba(0,0,0,0.1) !important;
  animation: crashedFlicker 1.6s ease-in-out infinite;
}
.sys-node.misconfigured::after {
  content: "⚠ INVALID CONN";
  position: absolute;
  top: -22px; left: 50%; transform: translateX(-50%);
  background: #ef4444; color: #fff;
  font: 700 9px/1 var(--mono);
  padding: 3px 7px; border-radius: 3px;
  white-space: nowrap; pointer-events: none;
  z-index: 10;
  letter-spacing: 0.04em;
}
.sys-node.misconfigured .load-fill { background: #ef4444 !important; }
.sys-node.misconfigured .status-dot { background: #ef4444; animation: pulse 0.6s infinite; }
.invalid-conn-overlay {
  position: absolute;
  inset: 0;
  border-radius: 10px;
  background: repeating-linear-gradient(
    45deg,
    rgba(239,68,68,0.07) 0px,
    rgba(239,68,68,0.07) 4px,
    transparent 4px,
    transparent 10px
  );
  pointer-events: none;
  z-index: 1;
}

/* ---------- Invalid connection alert toasts ---------- */
@keyframes connAlertIn {
  from { opacity: 0; transform: translateX(40px); }
  to   { opacity: 1; transform: translateX(0); }
}
.conn-alert-container {
  position: absolute;
  bottom: 80px;
  right: 16px;
  width: 320px;
  display: flex;
  flex-direction: column;
  gap: 8px;
  z-index: 120;
  pointer-events: none;
}
.conn-alert {
  pointer-events: all;
  border-radius: 10px;
  padding: 12px 14px;
  background: var(--surface);
  border: 1px solid rgba(239,68,68,0.5);
  box-shadow: 0 4px 24px rgba(0,0,0,0.08), 0 0 16px rgba(239,68,68,0.15);
  animation: connAlertIn 0.3s ease;
  font-size: 11.5px;
}
.conn-alert.warn {
  border-color: rgba(245,158,11,0.5);
  box-shadow: 0 4px 24px rgba(0,0,0,0.08), 0 0 16px rgba(245,158,11,0.15);
}
.conn-alert-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  font: 700 10.5px/1 var(--mono);
  color: var(--red);
  letter-spacing: 0.06em;
  margin-bottom: 6px;
}
.conn-alert.warn .conn-alert-header { color: var(--amber); }
.conn-alert-path {
  font: 600 12px/1.4 var(--mono);
  color: var(--text);
  margin-bottom: 4px;
}
.conn-arrow { color: var(--red); margin: 0 4px; }
.conn-alert.warn .conn-arrow { color: var(--amber); }
.conn-alert-reason {
  font: 400 10.5px/1.55 var(--sans);
  color: var(--text-muted);
  margin-bottom: 5px;
}
.conn-alert-fix {
  font: 500 10.5px/1.5 var(--sans);
  color: var(--accent);
}

/* ---------- Context menu section label ---------- */
.ctx-section-label {
  padding: 3px 12px 2px;
  font: 600 9.5px/1 var(--mono);
  color: var(--text-muted);
  letter-spacing: 0.08em;
  text-transform: uppercase;
  pointer-events: none;
}

/* ---------- Crash Alert Toasts (scrollable) ---------- */
@keyframes crashAlertIn {
  from { opacity: 0; transform: translateX(40px); }
  to   { opacity: 1; transform: translateX(0); }
}
.crash-alert-container {
  position: absolute;
  top: 16px;
  right: 16px;
  width: 310px;
  display: flex;
  flex-direction: column;
  gap: 6px;
  z-index: 100;
  pointer-events: none;
}
.crash-alert-count {
  font: 600 10px var(--mono);
  color: var(--text-muted);
  text-align: right;
  padding-right: 2px;
  pointer-events: none;
}
.crash-alert-scroll {
  display: flex;
  flex-direction: column;
  gap: 10px;
  max-height: min(420px, calc(100vh - 220px));
  overflow-y: auto;
  overflow-x: hidden;
  padding-right: 4px;
  pointer-events: all;
  scrollbar-width: thin;
  scrollbar-color: var(--border3) transparent;
}
.crash-alert {
  background: linear-gradient(135deg, rgba(255,248,246,0.97), rgba(255,255,255,0.97));
  border: 1px solid #ef4444;
  border-left: 4px solid #ef4444;
  border-radius: 8px;
  padding: 12px 14px;
  min-width: 260px;
  max-width: 300px;
  box-shadow: 0 0 24px rgba(239,68,68,0.15), 0 8px 24px rgba(0,0,0,0.08);
  animation: crashAlertIn 0.3s cubic-bezier(0.34,1.56,0.64,1) both;
  pointer-events: all;
}
.crash-alert-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  font: 700 11px/1 var(--mono);
  color: #ef4444;
  letter-spacing: 0.06em;
  margin-bottom: 8px;
}
.crash-alert-close {
  background: none;
  border: none;
  color: rgba(0,0,0,0.3);
  cursor: pointer;
  font-size: 12px;
  padding: 0 2px;
  line-height: 1;
  transition: color var(--t);
}
.crash-alert-close:hover { color: #ef4444; }
.crash-alert-name {
  font: 600 13px/1.3 var(--sans);
  color: var(--text);
  margin-bottom: 8px;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}
.crash-alert-stats {
  display: flex;
  gap: 12px;
  margin-bottom: 8px;
}
.crash-stat { display: flex; flex-direction: column; gap: 2px; }
.crash-stat-label { font: 500 9px var(--mono); color: var(--text-muted); }
.crash-stat-val { font: 700 12px var(--mono); color: var(--text); }
.crash-stat-val.red { color: #ef4444; }
.crash-alert-time {
  font: 400 9px var(--mono);
  color: var(--text-muted);
  line-height: 1.4;
  margin-top: 6px;
}
.crash-alert-reason {
  display: flex;
  align-items: flex-start;
  gap: 6px;
  font: 500 10px/1.4 var(--sans);
  color: rgba(180,60,20,0.9);
  background: rgba(239,68,68,0.06);
  border-radius: 4px;
  padding: 5px 8px;
  margin-top: 6px;
}
.crash-reason-icon { flex-shrink: 0; font-size: 11px; }
.crash-alert-fix {
  display: flex;
  align-items: flex-start;
  gap: 6px;
  font: 500 10px/1.4 var(--sans);
  color: rgba(20,140,80,0.9);
  background: rgba(16,185,129,0.07);
  border-radius: 4px;
  padding: 5px 8px;
  margin-top: 4px;
}
.crash-alert-fix.recovery {
  color: rgba(20,140,80,0.9);
  background: rgba(16,185,129,0.1);
}
.crash-fix-icon { flex-shrink: 0; font-size: 11px; color: var(--green); }

/* Recovery toast variant */
.crash-alert.recovery {
  border-color: var(--green);
  border-left-color: var(--green);
  background: linear-gradient(135deg, rgba(240,255,248,0.97), rgba(255,255,255,0.97));
  box-shadow: 0 0 24px rgba(16,185,129,0.15), 0 8px 24px rgba(0,0,0,0.08);
}
.crash-alert.recovery .crash-alert-header { color: var(--green); }

/* ---------- In-node crash reason panel ---------- */
.node-crash-reason {
  display: flex;
  flex-direction: column;
  gap: 2px;
  padding: 4px 6px;
}
.node-crash-code {
  font: 700 8px/1 var(--mono);
  color: #ef4444;
  letter-spacing: 0.06em;
  text-transform: uppercase;
}
.node-crash-hint {
  font: 500 8px/1 var(--sans);
  color: rgba(16,185,129,0.8);
}

/* ---------- Crash Detail Modal ---------- */
/* .crash-modal-backdrop centering/dimming now lives on the shared
   .modal-overlay rule (styles.css) so it flex-centers the live .sf-crash-modal
   card instead of fighting a redeclared background/z-index here. The
   .crash-modal card below is a superseded design (pre sf-crash-* rename) -
   no element in the app has this class anymore, kept as-is / not in use. */
@keyframes crashModalIn {
  from { opacity: 0; transform: translate(-50%, -46%) scale(0.95); }
  to   { opacity: 1; transform: translate(-50%, -50%) scale(1); }
}
.crash-modal {
  position: fixed;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  z-index: 201;
  width: min(480px, calc(100vw - 32px));
  max-height: calc(100vh - 48px);
  display: flex;
  flex-direction: column;
  background: var(--surface);
  border: 1px solid rgba(239,68,68,0.4);
  border-top: 3px solid #ef4444;
  border-radius: 12px;
  box-shadow: 0 0 40px rgba(239,68,68,0.12), 0 20px 50px rgba(0,0,0,0.28);
  animation: crashModalIn 0.22s cubic-bezier(0.34,1.56,0.64,1) both;
  overflow: hidden;
}
.crash-modal-body {
  overflow-y: auto;
  flex: 1;
  min-height: 0;
  scrollbar-width: thin;
  scrollbar-color: rgba(239,68,68,0.3) transparent;
}
.crash-modal-body::-webkit-scrollbar { width: 4px; }
.crash-modal-body::-webkit-scrollbar-track { background: transparent; }
.crash-modal-body::-webkit-scrollbar-thumb { background: rgba(239,68,68,0.3); border-radius: 2px; }
.crash-modal-header {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 16px 16px 12px;
  border-bottom: 1px solid var(--border);
  flex-shrink: 0;
}
.crash-modal-node-icon {
  width: 36px; height: 36px;
  display: flex; align-items: center; justify-content: center;
  background: var(--surface2);
  border-radius: 8px;
  flex-shrink: 0;
}
.crash-modal-node-name {
  font: 700 14px/1.2 var(--sans);
  color: var(--text);
  white-space: nowrap; overflow: hidden; text-overflow: ellipsis;
}
.crash-modal-node-type {
  font: 500 11px var(--mono);
  color: var(--text-muted);
  margin-top: 2px;
}
.crash-modal-status-badge {
  padding: 4px 10px;
  background: rgba(239,68,68,0.1);
  border: 1px solid rgba(239,68,68,0.4);
  border-radius: 99px;
  font: 700 10px var(--mono);
  color: #ef4444;
  white-space: nowrap;
  letter-spacing: 0.06em;
  flex-shrink: 0;
}
.crash-modal-close-btn {
  background: none;
  border: none;
  color: var(--text-muted);
  font-size: 16px;
  cursor: pointer;
  padding: 4px;
  border-radius: 4px;
  transition: color var(--t);
  flex-shrink: 0;
  line-height: 1;
}
.crash-modal-close-btn:hover { color: var(--text); }

.crash-modal-section {
  padding: 14px 16px;
  border-bottom: 1px solid var(--border);
}
.crash-modal-section:last-of-type { border-bottom: none; }
.crash-modal-section-title {
  font: 600 10px/1 var(--mono);
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.08em;
  margin-bottom: 10px;
}

.crash-modal-cause {
  display: flex;
  gap: 12px;
  align-items: flex-start;
}
.crash-modal-cause-icon { font-size: 22px; line-height: 1; flex-shrink: 0; }
.crash-modal-cause-label {
  font: 700 13px/1.2 var(--sans);
  color: #ef4444;
  margin-bottom: 4px;
}
.crash-modal-cause-text {
  font: 400 11px/1.5 var(--sans);
  color: var(--text-sec);
}

.crash-modal-config-grid {
  display: flex;
  flex-direction: column;
  gap: 6px;
}
.crash-config-row {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 6px 10px;
  background: var(--surface2);
  border-radius: 6px;
  border: 1px solid transparent;
  transition: var(--t);
}
.crash-config-row.culprit {
  background: rgba(239,68,68,0.06);
  border-color: rgba(239,68,68,0.25);
}
.crash-config-label {
  font: 500 11px var(--mono);
  color: var(--text-muted);
  min-width: 80px;
}
.crash-config-value {
  font: 700 12px var(--mono);
  color: var(--text);
}
.crash-config-unit {
  font-weight: 400;
  color: var(--text-muted);
  font-size: 10px;
}
.crash-config-culprit {
  margin-left: auto;
  font: 600 9px var(--mono);
  color: #ef4444;
  letter-spacing: 0.04em;
}

.crash-modal-fix {
  font: 500 12px/1.6 var(--sans);
  color: rgba(20,140,80,0.9);
  background: rgba(16,185,129,0.06);
  border: 1px solid rgba(16,185,129,0.2);
  border-radius: 6px;
  padding: 10px 12px;
}

.crash-modal-actions {
  display: flex;
  gap: 8px;
  padding: 12px 16px;
  border-top: 1px solid var(--border);
  background: var(--surface2);
  flex-shrink: 0;
}

/* ---------- Bottleneck node ---------- */
@keyframes bottleneckPulse {
  0%, 100% { box-shadow: 0 0 0 2px rgba(251,191,36,0.6), 0 0 24px rgba(251,191,36,0.3), 0 8px 24px rgba(0,0,0,0.06); }
  50%       { box-shadow: 0 0 0 3px rgba(251,191,36,0.9), 0 0 48px rgba(251,191,36,0.6), 0 8px 32px rgba(0,0,0,0.1); }
}
.sys-node.bottleneck {
  border-color: var(--amber) !important;
  animation: bottleneckPulse 1.4s ease-in-out infinite;
}
.sys-node.bottleneck::after {
  content: "⚡ BOTTLENECK";
  position: absolute;
  top: -22px; left: 50%; transform: translateX(-50%);
  background: var(--amber); color: #000;
  font: 700 9px/1 var(--mono);
  padding: 3px 6px; border-radius: 3px;
  white-space: nowrap; pointer-events: none;
  z-index: 10;
}

/* ---------- Status dot extra states ---------- */
.status-dot.bottleneck { background: var(--amber); box-shadow: 0 0 6px rgba(251,191,36,0.6); }

/* ---------- Time Scrubber ---------- */
.scrubber-row {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 6px 4px 0;
  border-top: 1px solid var(--border);
}
.scrubber-label {
  font: 500 10px var(--mono);
  color: var(--text-muted);
  white-space: nowrap;
}
.scrubber-slider { flex: 1; }
.scrubber-live-btn {
  padding: 3px 10px;
  border-radius: 4px;
  background: var(--green-dim);
  border: 1px solid var(--green);
  color: var(--green);
  font: 600 10px var(--mono);
  cursor: pointer;
  white-space: nowrap;
  transition: var(--t);
}
.scrubber-live-btn:hover { background: var(--green); color: #000; }
.scrubber-tick {
  font: 600 10px var(--mono);
  color: var(--text-muted);
  min-width: 48px;
}

/* ---------- Failure Scenario Cards ---------- */
.scenario-cards {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
}
.scenario-card {
  display: flex;
  align-items: center;
  gap: 6px;
  padding: 6px 12px;
  background: var(--surface2);
  border: 1px solid var(--border);
  border-radius: 6px;
  cursor: pointer;
  transition: var(--t);
  font-size: 11px;
  color: var(--text-muted);
  position: relative;
}
.scenario-card:hover {
  border-color: var(--sc-color, var(--red));
  color: var(--sc-color, var(--red));
  background: var(--surface3);
}
.scenario-card.active {
  border-color: var(--sc-color, var(--red));
  color: var(--sc-color, var(--red));
  background: color-mix(in srgb, var(--sc-color, var(--red)) 12%, transparent);
}
.scenario-icon { font-size: 14px; line-height: 1; }
.scenario-name { font-weight: 600; }
.scenario-active-dot {
  color: var(--sc-color, var(--red));
  font-size: 8px;
  animation: pulse 1s infinite;
}

/* ---------- What-if Cards ---------- */
.whatif-row {
  display: flex;
  gap: 10px;
  flex-wrap: wrap;
}
.whatif-card {
  background: var(--surface2);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 10px 12px;
  min-width: 160px;
  max-width: 200px;
  transition: var(--t);
}
.whatif-card:hover { border-color: var(--border3); }
.whatif-node-name {
  font: 600 11px var(--sans);
  color: var(--text);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}
.whatif-type {
  font: 500 10px var(--mono);
  color: var(--text-muted);
  margin-bottom: 2px;
}

/* ---------- SLO Calculator ---------- */
.slo-verdict {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 8px 14px;
  border-radius: 8px;
  font: 700 13px var(--mono);
}
.slo-verdict.pass {
  background: rgba(16,185,129,0.12);
  border: 1px solid var(--green);
  color: var(--green);
}
.slo-verdict.fail {
  background: rgba(239,68,68,0.12);
  border: 1px solid var(--red);
  color: var(--red);
}
.slo-icon { font-size: 16px; }

/* ═══════════════════════════════════════════════════════════════
   LATENCY HEATMAP OVERLAY
   ═══════════════════════════════════════════════════════════════ */
.heatmap-overlay {
  position: absolute;
  inset: 0;
  border-radius: inherit;
  pointer-events: none;
  z-index: 0;
  transition: background 0.4s ease;
}
.sys-node.heatmap-active {
  transition: box-shadow 0.4s ease;
}
/* Heatmap toggle button active state */
.ctrl-btn-text.active-heatmap {
  color: var(--amber);
  background: var(--amber-dim);
}

/* ═══════════════════════════════════════════════════════════════
   EDGE PROTOCOL LABELS
   ═══════════════════════════════════════════════════════════════ */
.edge-protocol-label {
  fill: rgba(56, 189, 248, 0.85);
  font: 600 8.5px var(--mono, monospace);
  letter-spacing: 0.07em;
  text-transform: uppercase;
  pointer-events: none;
}

/* ═══════════════════════════════════════════════════════════════
   VENDOR LOCK-IN SECTION (Advisor tab)
   ═══════════════════════════════════════════════════════════════ */
.vendor-section {
  background: var(--surface2);
  border: 1px solid var(--border2);
  border-radius: 8px;
  padding: 10px 12px;
  margin-bottom: 12px;
}
.vendor-header {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-bottom: 8px;
}
.vendor-grade {
  font: 800 32px/1 var(--mono);
  min-width: 36px;
  text-align: center;
}
.vendor-bars { display: flex; flex-direction: column; gap: 5px; }
.vendor-bar-row {
  display: flex;
  align-items: center;
  gap: 6px;
  font: 600 10px var(--mono);
}
.vendor-bar-label { min-width: 34px; }
.vendor-bar-track {
  flex: 1;
  height: 6px;
  background: var(--surface3);
  border-radius: 3px;
  overflow: hidden;
}
.vendor-bar-fill {
  height: 100%;
  border-radius: 3px;
  transition: width 0.4s var(--ease-out);
  opacity: 0.85;
}
.vendor-bar-count { min-width: 16px; color: var(--text-muted); text-align: right; }

/* ═══════════════════════════════════════════════════════════════
   INCIDENT REPLAY (bottom panel)
   ═══════════════════════════════════════════════════════════════ */
.incident-ribbon {
  display: flex;
  flex-direction: column;
  gap: 10px;
  padding: 2px 0;
  width: 100%;
}
.incident-header {
  display: flex;
  align-items: flex-start;
  gap: 12px;
}
.incident-title {
  font: 700 13px var(--sans);
  color: var(--text);
}
.incident-sub {
  font: 500 10.5px var(--sans);
  color: var(--text-muted);
  margin-top: 2px;
}
.incident-active-badge {
  display: flex;
  align-items: center;
  gap: 5px;
  font: 700 10px var(--mono);
  color: var(--red);
  background: var(--red-dim);
  border: 1px solid rgba(248,113,113,0.3);
  border-radius: 6px;
  padding: 3px 8px;
  letter-spacing: 0.06em;
  white-space: nowrap;
}
.incident-nodes {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
}
.incident-node-btn {
  display: flex;
  align-items: center;
  gap: 6px;
  padding: 5px 10px;
  background: var(--surface2);
  border: 1px solid var(--border2);
  border-radius: 7px;
  cursor: pointer;
  transition: var(--t);
  color: var(--text);
}
.incident-node-btn:hover { border-color: var(--node-color, var(--border3)); }
.incident-node-btn.failed {
  background: var(--red-dim);
  border-color: rgba(248,113,113,0.5);
  animation: incidentPulse 1.5s infinite;
}
@keyframes incidentPulse {
  0%, 100% { box-shadow: 0 0 0 0 rgba(248,113,113,0); }
  50%       { box-shadow: 0 0 0 4px rgba(248,113,113,0.2); }
}
.incident-node-icon { width: 14px; height: 14px; display: flex; align-items: center; justify-content: center; }
.incident-node-label { font: 600 11px var(--sans); }
.incident-node-status { font: 700 9px var(--mono); letter-spacing: 0.06em; }
.incident-node-status.up   { color: var(--green); }
.incident-node-status.down { color: var(--red); }
.incident-hint {
  font: 500 10.5px var(--sans);
  color: var(--amber);
  padding: 5px 10px;
  background: var(--amber-dim);
  border-radius: 6px;
}

/* ═══════════════════════════════════════════════════════════════
   SYSTEM DESIGN INTERVIEW MODE (bottom panel)
   ═══════════════════════════════════════════════════════════════ */
.interview-ribbon {
  display: flex;
  flex-direction: column;
  gap: 8px;
  width: 100%;
}
.interview-header {
  display: flex;
  align-items: center;
  gap: 10px;
}
.interview-header svg { width: 20px; height: 20px; color: var(--gold); flex-shrink: 0; }
.interview-title { font: 700 13px var(--sans); color: var(--text); }
.interview-sub   { font: 500 10.5px var(--sans); color: var(--text-muted); margin-top: 1px; }
.interview-challenges {
  display: flex;
  gap: 7px;
  flex-wrap: wrap;
}
.interview-challenge-card {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 7px 12px;
  background: var(--surface2);
  border: 1px solid var(--border2);
  border-radius: 8px;
  cursor: pointer;
  transition: var(--t);
  color: var(--text);
  text-align: left;
}
.interview-challenge-card:hover {
  border-color: var(--gold);
  background: rgba(252,211,77,0.06);
}
.challenge-emoji { font-size: 18px; flex-shrink: 0; }
.challenge-name  { font: 700 11px var(--sans); color: var(--text); }
.challenge-desc  { font: 500 10px var(--sans); color: var(--text-muted); margin-top: 1px; }
.challenge-time  {
  font: 700 11px var(--mono);
  color: var(--text-muted);
  white-space: nowrap;
  margin-left: auto;
  padding-left: 8px;
}
/* Active interview */
.interview-active-header {
  display: flex;
  align-items: center;
  gap: 10px;
}
.interview-challenge-name { font: 700 13px var(--sans); color: var(--text); }
.interview-timer {
  display: flex;
  align-items: center;
  gap: 5px;
  font: 700 15px var(--mono);
  color: var(--green);
  padding: 3px 10px;
  background: var(--green-dim);
  border-radius: 6px;
  white-space: nowrap;
}
.interview-timer svg { width: 14px; height: 14px; }
.interview-timer.warning { color: var(--amber); background: var(--amber-dim); }
.interview-timer.urgent  { color: var(--red);   background: var(--red-dim);   animation: incidentPulse 0.6s infinite; }
.interview-timer-bar {
  height: 3px;
  background: var(--surface3);
  border-radius: 2px;
  overflow: hidden;
}
.interview-timer-fill {
  height: 100%;
  border-radius: 2px;
  transition: width 1s linear, background 0.4s ease;
}
.interview-criteria {
  display: flex;
  flex-wrap: wrap;
  gap: 5px;
}
.criteria-item {
  display: flex;
  align-items: center;
  gap: 6px;
  padding: 4px 9px;
  border-radius: 6px;
  font: 500 10.5px var(--sans);
  background: var(--surface2);
  border: 1px solid var(--border2);
}
.criteria-item.passed { background: rgba(34,197,94,0.1); border-color: rgba(34,197,94,0.3); }
.criteria-item.failed { background: rgba(248,113,113,0.08); border-color: rgba(248,113,113,0.2); }
.criteria-item.pending { color: var(--text-muted); }
.criteria-check { font: 700 11px var(--mono); width: 12px; }
.criteria-item.passed .criteria-check { color: var(--green); }
.criteria-item.failed .criteria-check { color: var(--red); }
.criteria-label { flex: 1; }
.criteria-pts   { font: 600 10px var(--mono); white-space: nowrap; }
/* Result view */
.interview-result-header {
  display: flex;
  align-items: center;
  gap: 12px;
}
.interview-score {
  display: flex;
  flex-direction: column;
  align-items: center;
  line-height: 1;
  min-width: 48px;
}
.score-grade { font: 800 28px var(--mono); }
.score-num   { font: 600 10px var(--mono); color: var(--text-muted); margin-top: 2px; }

/* ---------- Config tab: connections panel ---------- */
.conn-row {
  display: flex;
  align-items: center;
  gap: 6px;
  padding: 5px 8px;
  margin-bottom: 4px;
  border-radius: 6px;
  background: var(--surface2);
  border: 1px solid var(--border2);
  font: 500 11.5px var(--sans);
}
.conn-row.invalid {
  background: rgba(239,68,68,0.06);
  border-color: rgba(239,68,68,0.3);
}
.conn-dir {
  font: 700 11px var(--mono);
  color: var(--accent);
  flex-shrink: 0;
  min-width: 14px;
}
.conn-row.invalid .conn-dir { color: var(--red); }
.conn-label {
  flex: 1;
  min-width: 0;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
  color: var(--text);
}
.conn-warn-icon {
  font-size: 11px;
  flex-shrink: 0;
  color: var(--amber);
  cursor: default;
}
.conn-remove {
  flex-shrink: 0;
  background: none;
  border: none;
  color: var(--text-muted);
  cursor: pointer;
  padding: 0 2px;
  font-size: 12px;
  line-height: 1;
  border-radius: 4px;
  transition: color 0.15s, background 0.15s;
}
.conn-remove:hover {
  color: var(--red);
  background: rgba(239,68,68,0.1);
}

/* ═══════════════════════════════════════════════════════════════════════════
   SYSFLOW DESIGN TOKEN BRIDGE
   Maps new SysFlow variable names → existing SystemFlow variable names so
   new component classes work without renaming any JSX references.
   ═══════════════════════════════════════════════════════════════════════════ */

:root,
[data-theme="dark"],
html.dark {
  /* Foreground aliases */
  --fg:            var(--text);
  --fg-dim:        var(--text-sec);
  --fg-faint:      var(--text-dim);
  --fg-ghost:      var(--text-muted);

  /* Surface aliases */
  --surf:          var(--surface);
  --surf-2:        var(--surface2);
  --surf-hi:       var(--surface3);
  --bg-elev:       var(--bg-2);

  /* Border aliases */
  --border-dim:    var(--border);
  --hairline:      var(--border);

  /* Shadow tokens */
  --shadow-1:      0 1px 0 rgba(0,0,0,0.5), 0 8px 24px rgba(0,0,0,0.28);
  --shadow-pop:    0 24px 60px rgba(0,0,0,0.5), 0 2px 0 rgba(255,255,255,0.04) inset;

  /* Motion tokens */
  --dur-fast:      120ms;
  --dur-med:       220ms;
  --easing:        cubic-bezier(0.2, 0.7, 0.2, 1);

  /* Radius tokens (SysFlow scale) */
  --r-1:           3px;
  --r-2:           6px;
  --r-3:           10px;
  --r-4:           14px;

  /* Semantic health aliases */
  --ok:            var(--green);
  --ok-dim:        var(--green-dim);
  --warn:          var(--amber);
  --warn-dim:      var(--amber-dim);
  --crit:          var(--red);
  --crit-dim:      var(--red-dim);
  --info:          var(--blue);

  /* Canvas alias */
  --grid:          var(--canvas-grid);

  /* Accent variants */
  --accent-hi:     #e8673a;
  --accent-faint:  rgba(220,90,45,0.08);

  /* Font aliases for SysFlow component classes */
  --font-sans:     var(--sans);
  --font-mono:     var(--mono);
}

[data-theme="light"],
html.light {
  /* Foreground aliases */
  --fg:            var(--text);
  --fg-dim:        var(--text-sec);
  --fg-faint:      var(--text-dim);
  --fg-ghost:      var(--text-muted);

  /* Surface aliases */
  --surf:          var(--surface);
  --surf-2:        var(--surface2);
  --surf-hi:       var(--surface3);
  --bg-elev:       var(--bg-2);

  /* Border aliases */
  --border-dim:    var(--border);
  --hairline:      var(--border);

  /* Shadow tokens */
  --shadow-1:      0 1px 0 rgba(0,0,0,0.06), 0 6px 24px rgba(0,0,0,0.06);
  --shadow-pop:    0 24px 60px rgba(0,0,0,0.12), 0 0 0 1px rgba(0,0,0,0.04);

  /* Motion tokens (same for both themes) */
  --dur-fast:      120ms;
  --dur-med:       220ms;
  --easing:        cubic-bezier(0.2, 0.7, 0.2, 1);

  /* Radius tokens (SysFlow scale) */
  --r-1:           3px;
  --r-2:           6px;
  --r-3:           10px;
  --r-4:           14px;

  /* Semantic health aliases */
  --ok:            var(--green);
  --ok-dim:        var(--green-dim);
  --warn:          var(--amber);
  --warn-dim:      var(--amber-dim);
  --crit:          var(--red);
  --crit-dim:      var(--red-dim);
  --info:          var(--blue);

  /* Canvas alias */
  --grid:          var(--canvas-grid);

  /* Accent variants */
  --accent-hi:     #c84e22;
  --accent-faint:  rgba(200,78,34,0.08);

  /* Font aliases */
  --font-sans:     var(--sans);
  --font-mono:     var(--mono);
}

/* ═══════════════════════════════════════════════════════════════════════════
   DENSITY VARIANTS
   ═══════════════════════════════════════════════════════════════════════════ */

[data-density="compact"]  { --pad-y: 6px;  --pad-x: 10px; --row-h: 26px; --gap: 6px;  }
[data-density="balanced"] { --pad-y: 10px; --pad-x: 14px; --row-h: 32px; --gap: 10px; }
[data-density="comfy"]    { --pad-y: 14px; --pad-x: 18px; --row-h: 38px; --gap: 14px; }

/* ═══════════════════════════════════════════════════════════════════════════
   PULSE ANIMATION (for .dot.crit and crashed nodes)
   ═══════════════════════════════════════════════════════════════════════════ */

@keyframes pulse {
  0%, 100% { box-shadow: 0 0 0 3px var(--red-dim); }
  50%      { box-shadow: 0 0 0 6px rgba(239,68,68,0.05); }
}

/* ═══════════════════════════════════════════════════════════════════════════
   SYSFLOW COMPONENT CLASSES
   These are additive - they do not replace any existing classes.
   ═══════════════════════════════════════════════════════════════════════════ */

/* ---------- .tag - pill badge (monospace, uppercase) ---------- */
.tag {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  font-family: var(--mono);
  font-size: 10.5px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  padding: 2px 6px;
  border-radius: var(--r-1, 3px);
  background: var(--surface2);
  color: var(--text-sec);
  border: 1px solid var(--border);
  line-height: 1.4;
  white-space: nowrap;
}
.tag.ok   { color: var(--green); background: var(--green-dim); border-color: transparent; }
.tag.warn { color: var(--amber); background: var(--amber-dim); border-color: transparent; }
.tag.crit { color: var(--red);   background: var(--red-dim);   border-color: transparent; }
.tag.info { color: var(--blue);  background: rgba(59,130,246,0.12); border-color: transparent; }

/* ---------- .dot - 6px health indicator dot ---------- */
.dot {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  display: inline-block;
  flex-shrink: 0;
}
.dot.ok   { background: var(--green); box-shadow: 0 0 0 3px var(--green-dim); }
.dot.warn { background: var(--amber); box-shadow: 0 0 0 3px var(--amber-dim); }
.dot.crit { background: var(--red);   box-shadow: 0 0 0 3px var(--red-dim);   animation: pulse 1.4s ease-in-out infinite; }
.dot.info { background: var(--blue);  box-shadow: 0 0 0 3px rgba(59,130,246,0.14); }

/* ---------- .lbl - uppercase monospace label ---------- */
.lbl {
  text-transform: uppercase;
  letter-spacing: 0.08em;
  font-size: 10px;
  font-weight: 500;
  color: var(--text-dim);
  font-family: var(--mono);
}

/* ---------- .num - tabular-nums monospace ---------- */
.num {
  font-family: var(--mono);
  font-variant-numeric: tabular-nums;
  font-variant-ligatures: none;
}

/* ---------- .kbd - keyboard shortcut badge ---------- */
/* (Refined over existing .kbd in styles.css) */
.kbd {
  display: inline-flex;
  align-items: center;
  font-family: var(--mono);
  font-size: 10.5px;
  font-weight: 600;
  padding: 1px 5px;
  background: var(--surface2);
  border: 1px solid var(--border2);
  border-bottom-width: 2px;
  border-radius: 4px;
  color: var(--text);
  line-height: 1.5;
  white-space: nowrap;
}

/* ---------- .btn - base button + variants ---------- */
/* Base .btn already exists in styles.css; these add the SysFlow variants */
.btn.primary {
  background: var(--accent);
  border-color: var(--accent);
  color: #fff;
  font-weight: 700;
  box-shadow: 0 4px 14px rgba(220,90,45,0.30);
}
.btn.primary:hover:not(:disabled) {
  background: var(--accent-hi);
  border-color: var(--accent-hi);
  box-shadow: 0 6px 20px rgba(220,90,45,0.45);
}
.btn.primary:disabled { opacity: 0.4; cursor: default; }

.btn.ghost {
  background: transparent;
  border-color: transparent;
  color: var(--text-sec);
}
.btn.ghost:hover { background: var(--surface2); color: var(--text); }

.btn.icon {
  width: 32px;
  height: 32px;
  padding: 0;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}

.btn.sm {
  height: 26px;
  padding: 0 8px;
  font-size: 11.5px;
  border-radius: var(--r-sm);
}

/* ---------- .card - card container ---------- */
.card {
  background: var(--bg-2);
  border: 1px solid var(--border);
  border-radius: var(--r-3, 10px);
  box-shadow: var(--shadow-1);
}
.card.flat { background: transparent; box-shadow: none; }

/* ---------- .hr - divider ---------- */
.hr {
  height: 1px;
  background: var(--border);
  border: 0;
  margin: 0;
}

/* ---------- .link - hyperlink ---------- */
a.link {
  color: var(--accent);
  text-decoration: none;
}
a.link:hover { text-decoration: underline; }

/* ---------- .spark - sparkline SVG container ---------- */
.spark {
  display: block;
  overflow: visible;
}