/* ═══════════════════════════════════════════════════════
   Ultra Engine — UI stylesheet v4
   Tokens → Layout → Components → Overlays → Responsive
   ═══════════════════════════════════════════════════════ */

/* ── Design Tokens ────────────────────────────────────── */
:root {
  /* layout metrics */
  --ue-topbar-h: 36px;
  --ue-bottombar-h: 32px;
  --ue-console-h: 160px;
  --ue-console-strip-h: 22px;
  --ue-panel-w: 280px;
  --ue-panel-min: 220px;
  --ue-panel-max: 480px;

  /* colors (aliases to canonical design-tokens.css where values match) */
  --ue-bg: #0a0a0f;
  --ue-bg-panel: rgba(15, 15, 30, 0.93);
  --ue-bg-bar: rgba(10, 10, 20, 0.95);
  --ue-bg-input: #1a1530;
  --ue-bg-console: rgba(0, 0, 0, 0.92);
  --ue-gold: var(--color-accent, #ffd700);
  --ue-gold-soft: #ffd47a;
  --ue-gold-dim: #c9a558;
  --ue-text: #e8d9b0;
  --ue-text-dim: #a89868;
  --ue-text-faint: #8a7a5a;
  --ue-text-ghost: #9c8b66;
  --ue-border: rgba(139, 90, 43, 0.3);
  --ue-border-strong: rgba(139, 90, 43, 0.5);
  --ue-ok: #88ff88;
  --ue-warn: #ffd47a;
  --ue-err: #ff8888;

  /* type scale (canonical --text-* tokens) */
  --ue-fs-xs: var(--text-10, 10px);
  --ue-fs-sm: var(--text-11, 11px);
  --ue-fs-md: var(--text-12, 12px);
  --ue-fs-lg: var(--text-13, 13px);

  /* z-index scale */
  --ue-z-canvas: 1;
  --ue-z-highlight: 50;
  --ue-z-panel: 100;
  --ue-z-console: 120;
  --ue-z-popup: 150;
  --ue-z-resizer: 160;
  --ue-z-bar: 200;
  --ue-z-fps: 210;
  --ue-z-toast: 400;
  --ue-z-palette: 450;
  --ue-z-loading: 500;

  --ue-anim: 0.2s ease;
}

/* ── Reset & Base ─────────────────────────────────────── */
* { box-sizing: border-box; margin: 0; padding: 0; }
body {
  background: var(--ue-bg); color: var(--ue-text);
  font-family: var(--font-heading, 'Cinzel', Georgia, serif);
  font-size: var(--ue-fs-lg); overflow: hidden;
  height: 100vh; width: 100vw;
}
.spacer { flex: 1; }
.dim { color: var(--ue-text-faint); }
kbd {
  font-family: monospace; font-size: 9px; color: var(--ue-gold-soft);
  background: rgba(255, 215, 0, 0.08); border: 1px solid var(--ue-border);
  border-radius: 2px; padding: 0 3px; vertical-align: 1px;
}
.ic { width: 13px; height: 13px; fill: currentColor; display: block; }

:focus-visible {
  outline: 1px solid var(--ue-gold);
  outline-offset: 1px;
}

/* ── Top Bar ──────────────────────────────────────────── */
#top-bar {
  position: fixed; top: 0; left: 0; right: 0; height: var(--ue-topbar-h);
  background: var(--ue-bg-bar); z-index: var(--ue-z-bar);
  display: flex; align-items: center; padding: 0 10px;
  border-bottom: 1px solid var(--ue-border-strong);
  gap: 10px;
}
#top-bar .title { color: var(--ue-gold-dim); font-size: var(--ue-fs-lg); letter-spacing: 0.08em; font-weight: bold; }
#top-bar .badge {
  background: rgba(255, 215, 0, 0.15); color: var(--ue-gold);
  padding: 2px 10px; border-radius: 3px; font-size: var(--ue-fs-xs);
  letter-spacing: 0.1em;
}
#top-bar .stat { font-size: var(--ue-fs-sm); color: var(--ue-text-faint); font-family: monospace; white-space: nowrap; }
#top-bar .stat-val { color: var(--ue-gold-soft); }

.icon-btn {
  display: inline-flex; align-items: center; justify-content: center;
  width: 24px; height: 24px; flex: none;
  background: transparent; border: 1px solid transparent; border-radius: 3px;
  color: var(--ue-gold-dim); cursor: pointer;
}
.icon-btn:hover { color: var(--ue-gold); background: rgba(255, 215, 0, 0.06); border-color: var(--ue-border); }
body.panel-collapsed #btn-panel-toggle .ic { transform: rotate(180deg); }
#btn-panel-toggle .ic { transition: transform var(--ue-anim); }

/* status pill */
.status-pill {
  font-size: var(--ue-fs-xs); font-family: monospace; letter-spacing: 0.06em;
  padding: 2px 10px; border-radius: 10px; white-space: nowrap;
  color: var(--ue-text-dim); background: rgba(255, 255, 255, 0.04);
  border: 1px solid var(--ue-border);
  max-width: 320px; overflow: hidden; text-overflow: ellipsis;
}
.status-pill[data-mode="busy"] {
  color: var(--ue-gold); border-color: var(--ue-gold-dim);
  animation: pill-pulse 1.1s ease-in-out infinite;
}
.status-pill[data-mode="ok"] { color: var(--ue-ok); border-color: rgba(136, 255, 136, 0.35); }
.status-pill[data-mode="error"] { color: var(--ue-err); border-color: rgba(255, 136, 136, 0.45); }
@keyframes pill-pulse { 50% { background: rgba(255, 215, 0, 0.12); } }

/* generation progress strip under top bar */
#top-progress {
  position: absolute; left: 0; right: 0; bottom: -1px; height: 2px;
  background: transparent; overflow: hidden; pointer-events: none;
  opacity: 0; transition: opacity 0.2s;
}
#top-progress.active { opacity: 1; }
#top-progress-fill {
  height: 100%; width: 40%;
  background: linear-gradient(90deg, transparent, var(--ue-gold), transparent);
  animation: progress-slide 1.2s linear infinite;
}
@keyframes progress-slide {
  from { transform: translateX(-100%); }
  to { transform: translateX(350%); }
}

/* ── Left Panel + Accordion ───────────────────────────── */
#left-panel {
  position: fixed; top: var(--ue-topbar-h); left: 0; bottom: var(--ue-bottombar-h);
  width: var(--ue-panel-w);
  background: var(--ue-bg-panel); z-index: var(--ue-z-panel);
  overflow-y: auto; overflow-x: hidden;
  border-right: 1px solid var(--ue-border);
  padding: 8px 12px; font-size: var(--ue-fs-md);
  transition: width var(--ue-anim), padding var(--ue-anim);
  scrollbar-width: thin; scrollbar-color: var(--ue-border-strong) transparent;
}
body.panel-collapsed #left-panel {
  width: 0; padding-left: 0; padding-right: 0; border-right: none;
}
body.panel-collapsed #panel-resizer { display: none; }

#panel-resizer {
  position: fixed; top: var(--ue-topbar-h); bottom: var(--ue-bottombar-h);
  left: calc(var(--ue-panel-w) - 2px); width: 5px;
  cursor: ew-resize; z-index: var(--ue-z-resizer);
  transition: left var(--ue-anim), background 0.15s;
}
#panel-resizer:hover, #panel-resizer.dragging { background: rgba(255, 215, 0, 0.25); }
body.resizing #panel-resizer { transition: none; }
body.resizing #left-panel, body.resizing #game-canvas, body.resizing #hex-highlight,
body.resizing #console-drawer { transition: none; }

.acc-section { margin-bottom: 2px; }
.acc-header {
  cursor: pointer; padding: 6px 8px 6px 20px;
  color: var(--ue-gold-dim); font-size: var(--ue-fs-lg);
  letter-spacing: 0.05em; position: relative;
  border-bottom: 1px solid var(--ue-border);
  user-select: none;
}
.acc-header::before {
  content: '▸'; position: absolute; left: 6px; top: 50%;
  transform: translateY(-50%);
  font-size: var(--ue-fs-xs); color: var(--ue-text-faint);
  transition: transform 0.15s;
}
.acc-section.open > .acc-header::before { transform: translateY(-50%) rotate(90deg); }
.acc-header:hover { color: var(--ue-gold); background: rgba(255, 215, 0, 0.04); }
.acc-body { display: none; padding: 6px 0; }
.acc-section.open > .acc-body { display: block; }

.acc-badge {
  display: inline-block; min-width: 16px; text-align: center;
  background: rgba(255, 215, 0, 0.15); color: var(--ue-gold);
  padding: 1px 5px; border-radius: 8px; font-size: 9px;
  font-family: monospace; margin-left: 4px; vertical-align: 1px;
}
.acc-badge.is-hidden { display: none; }
#err-count { background: rgba(255, 80, 80, 0.2); color: var(--ue-err); }

.badge-modified {
  font-size: 9px; font-family: monospace; color: var(--ue-warn);
  border: 1px solid var(--ue-border-strong); border-radius: 8px;
  padding: 0 6px; margin-left: 4px; vertical-align: 1px;
}
.badge-modified.is-hidden { display: none; }

/* subgroup headers: visually distinct from .acc-header (smaller, dimmer) */
.acc-body h3 {
  color: var(--ue-text-faint); font-size: var(--ue-fs-xs); margin: 10px 0 4px;
  text-transform: uppercase; letter-spacing: 0.08em; font-weight: normal;
}
.acc-body h3:first-child { margin-top: 0; }
.acc-body label {
  display: block; margin-top: 5px; font-size: var(--ue-fs-xs); position: relative;
  color: var(--ue-text-dim); text-transform: uppercase; letter-spacing: 0.05em;
}
/* dirty marker: gold dot when value differs from default */
.acc-body label.is-dirty::after {
  content: ''; position: absolute; left: -7px; top: 4px;
  width: 4px; height: 4px; border-radius: 50%;
  background: var(--ue-gold);
}
.acc-body input[type=number],
.acc-body input[type=range],
.acc-body input[type=text],
.acc-body select {
  width: 100%; margin-top: 2px; padding: 4px 6px;
  background: var(--ue-bg-input); border: 1px solid var(--ue-border);
  color: var(--ue-gold-soft); font-family: monospace; font-size: var(--ue-fs-sm);
  border-radius: 3px;
}
.acc-body textarea {
  width: 100%; margin-top: 2px; padding: 4px 6px;
  background: var(--ue-bg-input); border: 1px solid var(--ue-border);
  color: var(--ue-gold-soft); font-family: monospace; font-size: var(--ue-fs-xs);
  border-radius: 3px; resize: vertical;
}
/* custom range slider: visible gold track + big thumb */
.acc-body input[type=range] {
  -webkit-appearance: none; appearance: none;
  padding: 0; height: 16px;
  background: transparent; border: none; cursor: pointer;
}
.acc-body input[type=range]::-webkit-slider-runnable-track {
  height: 6px; border-radius: 3px;
  background: linear-gradient(90deg, #a8852f var(--fill, 50%), #241c3a var(--fill, 50%));
  border: 1px solid rgba(139, 90, 43, 0.4);
}
.acc-body input[type=range]::-webkit-slider-thumb {
  -webkit-appearance: none; appearance: none;
  width: 14px; height: 14px; margin-top: -5px;
  border-radius: 50%;
  background: radial-gradient(circle at 35% 35%, #ffe9a8, #c9a558 60%, #8a6f2a);
  border: 1px solid var(--ue-gold);
  box-shadow: 0 1px 3px rgba(0, 0, 0, 0.6);
}
.acc-body input[type=range]:hover::-webkit-slider-thumb,
.acc-body input[type=range]:focus-visible::-webkit-slider-thumb {
  background: radial-gradient(circle at 35% 35%, #fff2c0, #ffd47a 60%, #a8852f);
}
.acc-body input[type=range]::-moz-range-track {
  height: 6px; border-radius: 3px; background: #241c3a;
  border: 1px solid rgba(139, 90, 43, 0.4);
}
.acc-body input[type=range]::-moz-range-progress {
  height: 6px; border-radius: 3px; background: #a8852f;
}
.acc-body input[type=range]::-moz-range-thumb {
  width: 12px; height: 12px; border-radius: 50%;
  background: #c9a558; border: 1px solid var(--ue-gold);
  box-shadow: 0 1px 3px rgba(0, 0, 0, 0.6);
}

/* enhanced range row: slider + numeric input (built by ultra-controls.js) */
.range-row { display: flex; gap: 4px; align-items: center; margin-top: 2px; }
.range-row input[type=range] { flex: 1; margin-top: 0; min-width: 0; }
/* higher specificity than .acc-body input[type=number] (width:100%) */
.acc-body .range-row input.range-num {
  width: 54px; flex: none; margin-top: 0; padding: 2px 4px;
  text-align: right; font-size: var(--ue-fs-xs);
}
.slider-val { float: right; font-family: monospace; font-size: var(--ue-fs-xs); color: var(--ue-gold-soft); }

.hint { display: block; font-size: var(--ue-fs-xs); color: var(--ue-text-ghost); margin: 1px 0 4px 2px; font-style: italic; }

/* ── Fauna panel ─────────────────────────────────────── */
.fauna-label { text-transform: none; letter-spacing: 0.02em; }
.fauna-hexcount {
  font-family: monospace; font-size: var(--ue-fs-xs); color: var(--ue-text-faint);
  margin-left: 4px;
}
.fauna-hexcount.is-hidden { display: none; }
#fauna-sliders { max-height: 320px; overflow-y: auto; padding-right: 2px; }
#fauna-stats .fauna-total { color: var(--ue-gold-soft); margin-bottom: 2px; }

/* collapsible advanced block (native details, no JS) */
.adv-block {
  margin-top: 8px; border: 1px solid var(--ue-border); border-radius: 3px;
}
.adv-block summary {
  cursor: pointer; padding: 5px 8px; user-select: none;
  font-size: var(--ue-fs-xs); color: var(--ue-text-faint);
  text-transform: uppercase; letter-spacing: 0.06em;
}
.adv-block summary:hover { color: var(--ue-gold-dim); }
.adv-block[open] summary { border-bottom: 1px solid var(--ue-border); }
.adv-block > div { padding: 2px 4px 4px; }

.acc-body button:not(.preset-btn) {
  width: 100%; margin-top: 6px; padding: 6px 10px;
  background: linear-gradient(180deg, #6b4f1a 0%, #3a2a0a 100%);
  border: 1px solid #8a6f2a; color: var(--ue-text);
  border-radius: 3px; font-family: inherit; cursor: pointer;
  font-size: var(--ue-fs-sm); letter-spacing: 0.05em;
  transition: background 0.15s, filter 0.15s;
}
.acc-body button:not(.preset-btn):hover { background: linear-gradient(180deg, #8a6f2a 0%, #4a3a0a 100%); }
.acc-body button:not(.preset-btn):active { filter: brightness(1.2); }
.acc-body button:disabled { opacity: 0.5; cursor: not-allowed; }
.acc-body button.primary {
  background: linear-gradient(180deg, #2a6030 0%, #1a3018 100%);
  border-color: #3a8a2a; font-size: var(--ue-fs-md);
}
.acc-body button.danger {
  background: linear-gradient(180deg, #6b2a2a 0%, #3a0a0a 100%);
  border-color: #8a3a3a;
}
/* ghost: low-emphasis variant for rare/diagnostic actions */
.acc-body button.ghost {
  background: transparent; border-color: var(--ue-border-strong);
  color: var(--ue-text-dim);
}
.acc-body button.ghost:hover {
  background: rgba(255, 215, 0, 0.05); color: var(--ue-gold-dim);
  border-color: #8a6f2a;
}
.btn-row { display: flex; gap: 4px; margin-top: 4px; }
.btn-row button { flex: 1; margin-top: 0; font-size: var(--ue-fs-xs); padding: 5px 6px; }

.source-row { display: flex; gap: 6px; margin-top: 4px; }
.source-opt {
  flex: 1; text-align: center; padding: 5px;
  background: var(--ue-bg-input); border: 1px solid var(--ue-border);
  border-radius: 3px; cursor: pointer; font-size: var(--ue-fs-xs);
  color: var(--ue-text-faint); letter-spacing: 0.04em;
  transition: all 0.15s;
}
.source-opt:hover { border-color: #8a6f2a; color: var(--ue-gold-dim); }
.source-opt.active { border-color: var(--ue-gold); color: var(--ue-gold); background: rgba(255, 215, 0, 0.08); }

.toggle-row { display: flex; align-items: center; gap: 6px; margin-top: 4px; }
.toggle-row label { margin: 0; font-size: var(--ue-fs-sm); cursor: pointer; text-transform: none; color: #c8a868; }
.toggle-row input[type=checkbox] { width: auto; accent-color: #8a6f2a; }
.acc-body hr { border: none; border-top: 1px solid var(--ue-border); margin: 8px 0; }

.preset-row { display: flex; flex-wrap: wrap; gap: 3px; margin-top: 4px; }
.chip-row { display: flex; flex-wrap: wrap; gap: 3px; }

/* shared chip button (small dark chip, gold when active) */
.preset-btn, .view-preset, .cf-btn {
  font-size: var(--ue-fs-xs); cursor: pointer;
  background: #2a1f0a; border: 1px solid #4a3a1a; color: #c8a868;
  border-radius: 2px; font-family: monospace;
  transition: background 0.15s, border-color 0.15s;
}
.preset-btn:hover, .view-preset:hover, .cf-btn:hover { background: #3a2f1a; border-color: #8a6f2a; }
.preset-btn.active, .view-preset.active, .cf-btn.active {
  border-color: var(--ue-gold); color: var(--ue-gold);
  background: rgba(255, 215, 0, 0.12);
}
/* per-variant deltas */
.preset-btn { padding: 3px 7px; }
.view-preset { padding: 2px 8px; font-family: inherit; flex: none; }

/* small monospace stat blocks (were inline styles) */
.mini-stats {
  font-size: var(--ue-fs-xs); font-family: monospace;
  color: var(--ue-gold-soft); margin-top: 4px; line-height: 1.5;
}
.mini-log {
  font-size: var(--ue-fs-xs); font-family: monospace; color: var(--ue-text-dim);
  max-height: 120px; overflow-y: auto; margin-top: 4px;
}
.placed-item {
  display: flex; align-items: center; gap: 6px;
  padding: 1px 0; border-bottom: 1px solid rgba(139, 90, 43, 0.1);
}
.placed-item .pl-name { flex: 1; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.placed-item .pl-x { cursor: pointer; color: var(--ue-text-ghost); flex: none; }
.placed-item .pl-x:hover { color: var(--ue-err); }

/* ── Stats ────────────────────────────────────────────── */
/* #stats-box removed — stats live in the top bar (stat-*) */

/* ── Viewport ─────────────────────────────────────────── */
#game-canvas {
  position: fixed; top: var(--ue-topbar-h); left: var(--ue-panel-w);
  width: calc(100vw - var(--ue-panel-w));
  height: calc(100vh - var(--ue-topbar-h) - var(--ue-bottombar-h));
  display: block; z-index: var(--ue-z-canvas);
  touch-action: none; user-select: none;
  transition: left var(--ue-anim), width var(--ue-anim);
}

/* ── FPS Meter ────────────────────────────────────────── */
#fps-meter {
  position: fixed; right: 8px;
  bottom: calc(var(--ue-bottombar-h) + var(--ue-console-strip-h) + 6px);
  z-index: var(--ue-z-fps);
  font-family: monospace; font-size: var(--ue-fs-xs);
  color: var(--ue-ok); background: rgba(0, 0, 0, 0.65);
  border: 1px solid var(--ue-border); border-radius: 3px;
  padding: 2px 8px; display: none; pointer-events: none;
  white-space: pre;
}
#fps-meter.visible { display: block; }

/* ── Bottom Bar ───────────────────────────────────────── */
#bottom-bar {
  position: fixed; bottom: 0; left: 0; right: 0; height: var(--ue-bottombar-h);
  background: var(--ue-bg-bar); z-index: var(--ue-z-bar);
  display: flex; align-items: center; padding: 0 10px; gap: 10px;
  border-top: 1px solid var(--ue-border);
  overflow-x: auto; scrollbar-width: none;
}
#bottom-bar::-webkit-scrollbar { display: none; }
#bottom-bar label {
  display: inline-flex; align-items: center; gap: 3px; flex: none;
  font-size: var(--ue-fs-xs); color: #c8a868; cursor: pointer;
  text-transform: uppercase; letter-spacing: 0.04em;
}
#bottom-bar input[type=checkbox] { accent-color: #8a6f2a; }

/* icon layer toggles: checkbox hidden, icon highlights when checked */
#bottom-bar .tgl-btn {
  padding: 3px 6px; border: 1px solid transparent; border-radius: 3px;
  color: var(--ue-text-ghost); position: relative;
  transition: color 0.15s, border-color 0.15s, background 0.15s;
}
#bottom-bar .tgl-btn:hover { color: var(--ue-gold-dim); border-color: var(--ue-border); }
#bottom-bar .tgl-btn input {
  position: absolute; opacity: 0; width: 0; height: 0; pointer-events: none;
}
#bottom-bar .tgl-btn:has(input:checked) {
  color: var(--ue-gold); border-color: var(--ue-border-strong);
  background: rgba(255, 215, 0, 0.07);
}
#bottom-bar .tgl-btn .tgl-txt { display: none; }

/* cell info group inside bottom bar (merged toolbar) */
.cib-group {
  display: inline-flex; align-items: center; gap: 10px; flex: none;
  font-family: monospace; font-size: var(--ue-fs-xs); color: var(--ue-text-dim);
  border-left: 1px solid var(--ue-border); padding-left: 10px;
  max-width: 40vw; overflow: hidden;
}
.cib-group span { white-space: nowrap; }
.cib-group .cib-val { color: var(--ue-gold-soft); }

/* ── Console Drawer ───────────────────────────────────── */
#console-drawer {
  position: fixed; left: var(--ue-panel-w); right: 0;
  bottom: var(--ue-bottombar-h);
  height: var(--ue-console-strip-h);
  background: var(--ue-bg-console); z-index: var(--ue-z-console);
  border-top: 1px solid var(--ue-border);
  display: flex; flex-direction: column;
  transition: height var(--ue-anim), left var(--ue-anim);
}
#console-drawer.open { height: var(--ue-console-h); }

#console-head {
  display: flex; align-items: center; gap: 8px; flex: none;
  height: var(--ue-console-strip-h); padding: 0 8px;
  font-family: monospace; font-size: var(--ue-fs-xs); color: var(--ue-text-faint);
  cursor: pointer; user-select: none;
  border-bottom: 1px solid transparent;
}
#console-drawer.open #console-head { border-bottom-color: var(--ue-border); }
.cd-arrow { transition: transform 0.15s; font-size: 9px; }
#console-drawer.open .cd-arrow { transform: rotate(90deg); }
#console-status-line {
  overflow: hidden; text-overflow: ellipsis; white-space: nowrap;
  max-width: 45vw; color: var(--ue-text-dim);
}
#console-status-line.log-err { color: var(--ue-err); }
#console-status-line.log-warn { color: var(--ue-warn); }
#console-status-line.log-ok { color: var(--ue-ok); }

.cf-group { display: flex; gap: 2px; }
/* cf-btn base is shared with .preset-btn/.view-preset — only deltas here */
.cf-btn {
  font-size: 9px; padding: 1px 6px;
  background: transparent; border-color: var(--ue-border);
  color: var(--ue-text-faint);
}

#console-search {
  width: 90px; padding: 1px 6px;
  background: var(--ue-bg-input); border: 1px solid var(--ue-border);
  color: var(--ue-gold-soft); font-family: monospace; font-size: 9px;
  border-radius: 2px;
}
#console-drawer:not(.open) .cf-group,
#console-drawer:not(.open) #console-search,
#console-drawer:not(.open) #btn-console-export,
#console-drawer:not(.open) #btn-console-clear { display: none; }

#console {
  flex: 1; overflow-y: auto;
  font-family: monospace; font-size: var(--ue-fs-xs);
  padding: 4px 10px; color: #a8c8a8;
  display: none;
  scrollbar-width: thin; scrollbar-color: var(--ue-border-strong) transparent;
}
#console-drawer.open #console { display: block; }
#console .log-err { color: var(--ue-err); }
#console .log-warn { color: var(--ue-warn); }
#console .log-ok { color: var(--ue-ok); }
#console .log-line { white-space: pre-wrap; word-break: break-all; }
#console[data-filter="err"] .log-line:not(.log-err),
#console[data-filter="warn"] .log-line:not(.log-warn),
#console[data-filter="ok"] .log-line:not(.log-ok) { display: none; }

/* ── Toasts ───────────────────────────────────────────── */
#toast-container {
  position: fixed; top: calc(var(--ue-topbar-h) + 8px); right: 8px;
  z-index: var(--ue-z-toast); display: flex; flex-direction: column;
  gap: 6px; pointer-events: none; max-width: 340px;
}
.toast {
  padding: 7px 12px; border-radius: 4px;
  background: var(--ue-bg-panel); border: 1px solid var(--ue-border-strong);
  border-left-width: 3px; box-shadow: 0 4px 14px rgba(0, 0, 0, 0.5);
  font-size: var(--ue-fs-sm); color: var(--ue-text);
  animation: toast-in 0.2s ease;
  pointer-events: auto; cursor: pointer;
}
.toast.toast-ok { border-left-color: var(--ue-ok); }
.toast.toast-warn { border-left-color: var(--ue-warn); }
.toast.toast-error { border-left-color: var(--ue-err); }
.toast.toast-info { border-left-color: var(--ue-gold-dim); }
.toast.leaving { opacity: 0; transform: translateX(20px); transition: all 0.25s; }
@keyframes toast-in { from { opacity: 0; transform: translateX(30px); } }

/* ── Loading Overlay ──────────────────────────────────── */
#loading {
  position: fixed; top: 0; left: 0; right: 0; bottom: 0;
  background: var(--ue-bg); z-index: var(--ue-z-loading);
  display: flex; flex-direction: column;
  align-items: center; justify-content: center;
  color: #c9a96e; font-family: inherit;
  transition: opacity 0.5s;
}
#loading.hidden { opacity: 0; pointer-events: none; }
#loading h1 { font-size: 28px; letter-spacing: 3px; color: var(--ue-gold); margin: 0; }
.spinner {
  width: 40px; height: 40px; margin: 20px;
  border: 3px solid rgba(255, 215, 0, 0.2);
  border-top-color: var(--ue-gold); border-radius: 50%;
  animation: spin 0.8s linear infinite;
}
@keyframes spin { to { transform: rotate(360deg); } }
#loading-status { margin: 10px 0; font-size: 14px; }
#loading-info { font-size: var(--ue-fs-md); color: #888; max-width: 400px; line-height: 1.6; }
#loading-info .row { display: flex; justify-content: space-between; padding: 2px 0; }
#loading-info .ok { color: #4caf50; }
#loading-info .warn { color: #f39c12; }
#loading-info .err { color: #e74c3c; }

/* ── Hex Highlight SVG ────────────────────────────────── */
#hex-highlight {
  position: fixed; top: var(--ue-topbar-h); left: var(--ue-panel-w);
  z-index: var(--ue-z-highlight); pointer-events: none;
  width: calc(100vw - var(--ue-panel-w));
  height: calc(100vh - var(--ue-topbar-h) - var(--ue-bottombar-h));
  opacity: 0; transition: opacity 0.15s, left var(--ue-anim), width var(--ue-anim);
}
#hex-highlight.visible { opacity: 1; }
#hex-highlight-poly { animation: hex-pulse 1.6s ease-in-out infinite; }
@keyframes hex-pulse { 50% { stroke-opacity: 0.5; } }

/* ── Empty State (viewport before first generation) ───── */
#empty-state {
  position: fixed; top: var(--ue-topbar-h); left: var(--ue-panel-w); right: 0;
  bottom: var(--ue-bottombar-h); z-index: var(--ue-z-highlight);
  display: flex; flex-direction: column; align-items: center; justify-content: center;
  pointer-events: none; transition: left var(--ue-anim);
}
#empty-state.is-hidden { display: none; }
#empty-state .es-icon { font-size: 56px; color: var(--ue-border-strong); line-height: 1; }
#empty-state .es-title {
  color: var(--ue-gold-dim); font-size: 16px;
  letter-spacing: 0.12em; margin-top: 10px;
}
#empty-state .es-sub { font-size: var(--ue-fs-sm); color: var(--ue-text-faint); margin-top: 6px; }

/* ── Hex Popup ────────────────────────────────────────── */
#hex-popup {
  position: fixed; z-index: var(--ue-z-popup); min-width: 230px; max-width: 290px;
  background: var(--ue-bg-panel); border: 1px solid var(--ue-border-strong);
  border-radius: 4px; padding: 8px 10px; font-size: var(--ue-fs-sm);
  box-shadow: 0 4px 16px rgba(0, 0, 0, 0.6);
  display: none; color: #c8a868; font-family: inherit;
  animation: toast-in 0.15s ease;
}
#hex-popup.visible { display: block; }
#hex-popup.pinned { border-color: var(--ue-gold-dim); }
#hex-popup .hp-row { display: flex; justify-content: space-between; align-items: center; padding: 2px 0; border-bottom: 1px solid rgba(139, 90, 43, 0.1); }
#hex-popup .hp-label { color: var(--ue-text-faint); font-size: var(--ue-fs-xs); }
#hex-popup .hp-value { color: var(--ue-gold-soft); font-size: var(--ue-fs-xs); font-family: monospace; text-align: right; display: inline-flex; align-items: center; gap: 4px; }
#hex-popup .hp-coords { color: var(--ue-gold); font-size: var(--ue-fs-lg); text-align: center; padding: 2px 0 6px; font-weight: bold; letter-spacing: 0.05em; }
.hp-chip {
  display: inline-block; width: 10px; height: 10px; border-radius: 2px;
  background: transparent; border: 1px solid var(--ue-border-strong);
  flex: none;
}
#hex-popup .hp-close, #hex-popup .hp-pin {
  position: absolute; top: 4px; cursor: pointer;
  color: var(--ue-text-faint); font-size: 14px; background: none; border: none;
  padding: 0 2px; line-height: 1;
}
#hex-popup .hp-close { right: 8px; }
#hex-popup .hp-pin { right: 26px; font-size: 11px; opacity: 0.6; }
#hex-popup .hp-close:hover { color: var(--ue-err); }
#hex-popup .hp-pin:hover, #hex-popup.pinned .hp-pin { opacity: 1; color: var(--ue-gold); }
#hp-spark { width: 100%; height: 24px; margin-top: 6px; display: block; }
.hp-spark-cap {
  font-size: 8px; color: var(--ue-text-ghost); text-align: center;
  text-transform: uppercase; letter-spacing: 0.08em; margin-top: 1px;
}

/* ── Hex Popup Model Placement ────────────────────────── */
.hp-model-section { margin-top: 8px; padding-top: 8px; border-top: 1px solid var(--ue-border); }
.hp-model-section.is-hidden { display: none; }
.hp-model-name {
  font-size: var(--ue-fs-xs); color: var(--ue-gold-soft);
  font-family: monospace; margin-bottom: 6px;
  overflow: hidden; text-overflow: ellipsis; white-space: nowrap;
}
.hp-place-btn {
  width: 100%; padding: 5px 10px;
  background: linear-gradient(180deg, #2a6030 0%, #1a3018 100%);
  border: 1px solid #3a8a2a; color: var(--ue-text);
  border-radius: 3px; font-family: inherit; cursor: pointer;
  font-size: var(--ue-fs-sm); letter-spacing: 0.05em;
  transition: background 0.15s, filter 0.15s;
}
.hp-place-btn:hover { background: linear-gradient(180deg, #3a8030 0%, #2a4020 100%); }
.hp-place-btn:active { filter: brightness(1.2); }
.hp-place-btn:disabled { opacity: 0.4; cursor: not-allowed; }

/* ── Model List ───────────────────────────────────────── */
#model-list { margin-top: 4px; max-height: 220px; overflow-y: auto; }
.model-item {
  padding: 3px 6px; cursor: pointer; border-bottom: 1px solid rgba(139, 90, 43, 0.1);
  font-size: var(--ue-fs-xs); display: flex; align-items: center; gap: 6px;
  transition: background 0.1s;
}
.model-item:hover { background: rgba(255, 215, 0, 0.06); }
.model-item.selected { background: rgba(255, 215, 0, 0.12); border-left: 2px solid var(--ue-gold); }
.model-item .mi-name { color: #c8a868; flex: 1; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.model-item .mi-cat { color: var(--ue-text-ghost); font-size: 9px; }
.model-item .mi-loaded { color: #4caf50; font-size: 9px; }
#model-preview-info { font-size: 9px; color: var(--ue-text-ghost); margin-top: 4px; font-family: monospace; line-height: 1.4; }
#model-preview-info .mpi-val { color: var(--ue-gold-soft); }
.model-more {
  padding: 4px 6px; font-size: var(--ue-fs-xs); font-family: monospace;
  color: var(--ue-text-faint); text-align: center;
}

/* ── Wall Planner ─────────────────────────────────────── */
.wp-row { display: flex; gap: 4px; margin-top: 2px; }
.wp-row input { width: 50%; font-size: var(--ue-fs-xs); }

/* ── Command Palette ──────────────────────────────────── */
#palette {
  position: fixed; top: 15vh; left: 50%; transform: translateX(-50%);
  width: min(440px, 90vw); z-index: var(--ue-z-palette);
  background: var(--ue-bg-panel); border: 1px solid var(--ue-border-strong);
  border-radius: 6px; box-shadow: 0 10px 40px rgba(0, 0, 0, 0.7);
  display: none; overflow: hidden;
}
#palette.visible { display: block; animation: toast-in 0.15s ease; }
#palette-input {
  width: 100%; padding: 10px 12px; background: transparent; border: none;
  border-bottom: 1px solid var(--ue-border);
  color: var(--ue-text); font-family: inherit; font-size: var(--ue-fs-lg);
  outline: none;
}
#palette-list { max-height: 300px; overflow-y: auto; padding: 4px; }
.pal-item {
  display: flex; align-items: center; gap: 8px;
  padding: 6px 10px; border-radius: 3px; cursor: pointer;
  font-size: var(--ue-fs-md); color: var(--ue-text-dim);
}
.pal-item .pal-kind {
  font-size: 9px; font-family: monospace; color: var(--ue-text-ghost);
  text-transform: uppercase; flex: none; width: 52px;
}
.pal-item .pal-label { flex: 1; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.pal-item.selected { background: rgba(255, 215, 0, 0.1); color: var(--ue-gold-soft); }
.pal-empty { padding: 10px; text-align: center; color: var(--ue-text-ghost); font-size: var(--ue-fs-sm); }

/* ── Help Overlay ─────────────────────────────────────── */
#help-overlay {
  position: fixed; inset: 0; z-index: var(--ue-z-palette);
  background: rgba(0, 0, 0, 0.6); display: none;
  align-items: center; justify-content: center;
}
#help-overlay.visible { display: flex; }
.help-box {
  background: var(--ue-bg-panel); border: 1px solid var(--ue-border-strong);
  border-radius: 6px; padding: 18px 22px; max-width: 480px;
  box-shadow: 0 10px 40px rgba(0, 0, 0, 0.7);
}
.help-box h3 { color: var(--ue-gold); font-size: var(--ue-fs-lg); margin-bottom: 10px; letter-spacing: 0.06em; }
.help-box table { border-collapse: collapse; width: 100%; }
.help-box td { padding: 4px 10px 4px 0; font-size: var(--ue-fs-md); color: var(--ue-text-dim); white-space: nowrap; }
.help-close-hint { margin-top: 12px; font-size: var(--ue-fs-xs); color: var(--ue-text-ghost); text-align: center; }

/* ── Responsive ───────────────────────────────────────── */
@media (max-width: 900px) {
  :root { --ue-panel-w: 0px; }
  body:not(.panel-collapsed) #left-panel {
    width: min(320px, 85vw);
    box-shadow: 0 0 30px rgba(0, 0, 0, 0.7);
  }
  #panel-resizer { display: none; }
  /* keep cell info on small screens — hide only low-priority fields */
  .cib-group #cib-chunk, .cib-group #cib-habit { display: none; }
  .cib-group { max-width: 50vw; gap: 6px; }
  #top-bar .stat:nth-of-type(n+3) { display: none; }
}

/* ── Reduced Motion ───────────────────────────────────── */
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    transition-duration: 0.01ms !important;
  }
}

/* ── Tick Control ─────────────────────────────────────── */
.tick-display { display: flex; gap: 0.5rem; align-items: center; margin: 0.3rem 0; }
.tick-label { color: var(--clr-text-dim, #888); font-size: 0.78rem; }
.tick-value { color: var(--clr-text, #ddd); font-weight: 600; font-size: 1.05rem; font-variant-numeric: tabular-nums; }
.tick-phase { margin-left: auto; color: var(--clr-accent, #f5c542); font-size: 0.85rem; }
.tick-speed-row { display: flex; gap: 0.3rem; align-items: center; margin-top: 0.5rem; font-size: 0.78rem; color: var(--clr-text-dim, #888); }
.tick-speed-btn { padding: 0.2rem 0.55rem; border: 1px solid #444; border-radius: 3px; background: #1a1a1a; color: #999; cursor: pointer; font-size: 0.72rem; }
.tick-speed-btn.active { background: var(--clr-accent, #f5c542); color: #111; border-color: var(--clr-accent, #f5c542); }
.tick-speed-btn:hover:not(.active) { border-color: #666; color: #ccc; }

/* ── Build Menu (settlement hex) ──────────────────────── */
#build-menu {
  position: fixed; z-index: var(--ue-z-popup); width: 520px; max-width: 92vw;
  background: var(--ue-bg-panel); border: 1px solid var(--ue-border-strong);
  border-radius: 4px; padding: 10px 12px; font-size: var(--ue-fs-sm);
  box-shadow: 0 6px 24px rgba(0, 0, 0, 0.7);
  display: none; color: #c8a868; font-family: inherit;
  animation: toast-in 0.15s ease;
}
#build-menu.visible { display: block; }
#build-menu .hp-close { position: absolute; top: 4px; right: 8px; cursor: pointer;
  color: var(--ue-text-faint); font-size: 14px; background: none; border: none; padding: 0 2px; line-height: 1; }
#build-menu .hp-close:hover { color: var(--ue-err); }
#bm-head { padding-bottom: 6px; border-bottom: 1px solid var(--ue-border); margin-bottom: 8px; }
#bm-name { color: var(--ue-gold); font-size: var(--ue-fs-lg); font-weight: bold; letter-spacing: 0.05em; }
#bm-sub { color: var(--ue-text-faint); font-size: var(--ue-fs-xs); }
#bm-body { display: flex; gap: 10px; min-height: 300px; }
#bm-slots { flex: 0 0 46%; display: flex; flex-direction: column; align-items: center; gap: 6px; }
#bm-svg { width: 100%; height: 250px; }
#bm-counter { font-size: var(--ue-fs-sm); color: var(--ue-gold-soft); font-family: monospace; }
#bm-buildings { flex: 1; display: flex; flex-direction: column; min-width: 0; }
#bm-buildings-title { font-size: var(--ue-fs-xs); color: var(--ue-text-faint); text-transform: uppercase; letter-spacing: 0.08em; margin-bottom: 4px; }
#bm-buildings-list { display: flex; flex-wrap: wrap; gap: 4px; align-content: flex-start; overflow-y: auto; max-height: 270px; scrollbar-width: thin; scrollbar-color: var(--ue-border-strong) transparent; }
.bm-building {
  padding: 3px 8px; border: 1px solid var(--ue-border); border-radius: 3px;
  background: rgba(255, 255, 255, 0.03); color: var(--ue-text-dim);
  font-size: var(--ue-fs-xs); cursor: pointer; transition: all var(--ue-anim);
}
.bm-building:hover { color: var(--ue-gold-soft); border-color: var(--ue-gold-dim); }
.bm-building.selected { background: rgba(255, 215, 0, 0.15); color: var(--ue-gold); border-color: var(--ue-gold); }
#bm-status { margin-top: 8px; padding-top: 6px; border-top: 1px solid var(--ue-border);
  font-size: var(--ue-fs-xs); color: var(--ue-gold-soft); min-height: 16px; }
#build-menu .bm-slot { cursor: pointer; }
#build-menu .bm-slot.bm-free:hover { stroke: var(--ue-gold); stroke-width: 2; fill: rgba(255, 215, 0, 0.12); }
#build-menu .bm-slot.bm-main { cursor: default; }