/* ─── Reset / base ─── */
* { box-sizing: border-box; margin: 0; padding: 0; }
html, body, #root { height: 100%; width: 100%; }
body {
  font-family: 'Inter', -apple-system, sans-serif;
  background: #f4f1ea;
  color: #1a1816;
  font-size: 13px;
  -webkit-font-smoothing: antialiased;
  overflow: hidden;
}
.mono { font-family: 'Courier New', 'JetBrains Mono', Courier, monospace; }

/* ─── App layout ─── */
.app {
  display: grid;
  grid-template-rows: 56px 1fr;
  height: 100vh;
  background: #f4f1ea;
}

/* ─── Topbar ─── */
.topbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 20px;
  background: #f4f1ea;
  border-bottom: 1px solid #1a1816;
  position: relative;
  z-index: 10;
}
.brand {
  display: flex;
  align-items: center;
  gap: 12px;
}
.logo-mark {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 2px;
  width: 22px;
  height: 22px;
}
.lm-dot {
  background: #1a1816;
}
.lm-dot:nth-child(1) { border-radius: 50% 0 0 0; }
.lm-dot:nth-child(2) { border-radius: 0 50% 0 0; }
.lm-dot:nth-child(3) { border-radius: 0 0 0 50%; background: #c4593a; }
.lm-dot:nth-child(4) { border-radius: 0 0 50% 0; }
.brand-name {
  font-family: 'Courier New', 'JetBrains Mono', Courier, monospace;
  font-weight: 600;
  font-size: 13px;
  letter-spacing: -0.01em;
}
.brand-sub {
  font-size: 10px;
  color: #8a857c;
  font-family: 'Courier New', 'JetBrains Mono', Courier, monospace;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  margin-top: 1px;
}

.topbar-right {
  display: flex;
  align-items: center;
  gap: 8px;
}
.meta-pill {
  display: flex;
  align-items: center;
  gap: 6px;
  padding: 4px 9px;
  font-size: 10px;
  font-family: 'Courier New', 'JetBrains Mono', Courier, monospace;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  border: 1px solid #d8d2c4;
  background: #f9f7f1;
}
.meta-key { color: #8a857c; }
.meta-val { color: #1a1816; font-weight: 500; }

.btn {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 7px 12px;
  font-family: 'Inter', sans-serif;
  font-size: 12px;
  font-weight: 500;
  border: 1px solid #1a1816;
  background: #f4f1ea;
  color: #1a1816;
  cursor: pointer;
  transition: all 0.12s ease;
}
.btn:hover { background: #1a1816; color: #f4f1ea; }
.btn.primary { background: #1a1816; color: #f4f1ea; margin-left: 4px; }
.btn.primary:hover { background: #c4593a; border-color: #c4593a; }
.btn.ghost { border-color: #d8d2c4; }
.btn.ghost:hover { background: #1a1816; color: #f4f1ea; border-color: #1a1816; }

/* ─── Main ─── */
.main {
  display: grid;
  grid-template-columns: 1fr 360px;
  overflow: hidden;
}

/* ─── Stage ─── */
.stage {
  position: relative;
  overflow: hidden;
  display: flex;
  align-items: center;
  justify-content: center;
  background: #ebe7dd;
  transition: background 0.3s ease;
}
.stage-grid {
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(26,24,22,0.04) 1px, transparent 1px),
    linear-gradient(90deg, rgba(26,24,22,0.04) 1px, transparent 1px);
  background-size: 24px 24px;
  pointer-events: none;
}
.canvas-wrap {
  position: relative;
  transform-origin: center;
  box-shadow: 0 30px 60px -20px rgba(0,0,0,0.25), 0 0 0 1px rgba(26,24,22,0.15);
}
.canvas-wrap canvas {
  display: block;
}
.stage-corner {
  position: absolute;
  width: 24px;
  height: 24px;
  pointer-events: none;
}
.stage-corner.tl { top: 20px; left: 20px; }
.stage-corner.tr { top: 20px; right: 20px; transform: scaleX(-1); }
.stage-corner.bl { bottom: 20px; left: 20px; transform: scaleY(-1); }
.stage-corner.br { bottom: 20px; right: 20px; transform: scale(-1, -1); }
.corner-line {
  position: absolute;
  background: #1a1816;
}
.corner-line.h { width: 16px; height: 1px; top: 0; left: 0; }
.corner-line.v { width: 1px; height: 16px; top: 0; left: 0; }

.stage-footer {
  position: absolute;
  bottom: 20px;
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 10px;
  letter-spacing: 0.08em;
  color: #1a1816;
  background: #f4f1ea;
  border: 1px solid #1a1816;
  padding: 6px 14px;
}
.dot-sep { color: #8a857c; }

/* ─── Panel ─── */
.panel {
  border-left: 1px solid #1a1816;
  background: #f9f7f1;
  overflow-y: auto;
  display: flex;
  flex-direction: column;
}
.panel::-webkit-scrollbar { width: 8px; }
.panel::-webkit-scrollbar-track { background: transparent; }
.panel::-webkit-scrollbar-thumb { background: #d8d2c4; }

.panel-section {
  padding: 20px 20px 22px;
  border-bottom: 1px solid #e4dfd2;
}
.panel-section:last-child { border-bottom: none; }

.section-head {
  display: flex;
  align-items: baseline;
  gap: 8px;
  margin-bottom: 14px;
}
.section-num {
  font-family: 'Courier New', 'JetBrains Mono', Courier, monospace;
  font-size: 10px;
  color: #8a857c;
  letter-spacing: 0.05em;
}
.section-title {
  font-size: 11px;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  font-weight: 600;
  color: #1a1816;
}
.section-sub {
  margin-left: auto;
  font-family: 'Courier New', 'JetBrains Mono', Courier, monospace;
  font-size: 10px;
  color: #c4593a;
  text-transform: uppercase;
  letter-spacing: 0.06em;
}

/* ─── Engine grid ─── */
.engine-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 4px;
}
.engine-btn {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 6px;
  padding: 12px 4px 9px;
  background: #f4f1ea;
  border: 1px solid #e4dfd2;
  cursor: pointer;
  color: #5a554c;
  font-family: 'Inter', sans-serif;
  font-size: 10px;
  font-weight: 500;
  letter-spacing: 0.02em;
  transition: all 0.1s ease;
}
.engine-btn:hover { background: #f4f1ea; border-color: #1a1816; color: #1a1816; }
.engine-btn.active {
  background: #1a1816;
  color: #f4f1ea;
  border-color: #1a1816;
}

/* ─── Sliders ─── */
.sliders {
  display: flex;
  flex-direction: column;
  gap: 14px;
}
.slider {
  display: flex;
  flex-direction: column;
  gap: 6px;
}
.slider-head {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
}
.slider-label {
  font-size: 11px;
  font-weight: 500;
  color: #3a3530;
  letter-spacing: 0.01em;
}
.slider-value {
  font-family: 'Courier New', 'JetBrains Mono', Courier, monospace;
  font-size: 11px;
  color: #1a1816;
  font-weight: 500;
  background: #ebe7dd;
  padding: 1px 6px;
  border: 1px solid transparent;
}
.slider-track-wrap {
  position: relative;
  height: 22px;
  display: flex;
  align-items: center;
}
.slider-track-wrap::before {
  content: '';
  position: absolute;
  left: 0; right: 0;
  top: 50%;
  transform: translateY(-50%);
  height: 2px;
  background: #e4dfd2;
}
.slider-fill {
  position: absolute;
  left: 0;
  top: 50%;
  transform: translateY(-50%);
  height: 2px;
  background: #1a1816;
  pointer-events: none;
}
.slider-track-wrap input[type="range"] {
  position: relative;
  width: 100%;
  height: 22px;
  background: transparent;
  appearance: none;
  -webkit-appearance: none;
  margin: 0;
  cursor: pointer;
  z-index: 2;
}
.slider-track-wrap input[type="range"]::-webkit-slider-thumb {
  -webkit-appearance: none;
  appearance: none;
  width: 14px;
  height: 14px;
  background: #f4f1ea;
  border: 2px solid #1a1816;
  border-radius: 0;
  cursor: grab;
  transition: transform 0.08s ease, background 0.08s ease;
}
.slider-track-wrap input[type="range"]::-webkit-slider-thumb:hover {
  background: #c4593a;
  border-color: #c4593a;
  transform: scale(1.15);
}
.slider-track-wrap input[type="range"]::-webkit-slider-thumb:active {
  cursor: grabbing;
  background: #c4593a;
  border-color: #c4593a;
}
.slider-track-wrap input[type="range"]::-moz-range-thumb {
  width: 14px;
  height: 14px;
  background: #f4f1ea;
  border: 2px solid #1a1816;
  border-radius: 0;
  cursor: grab;
}

/* ─── Palette ─── */
.color-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 8px;
  margin-bottom: 10px;
}
.color-picker {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 6px 10px;
  background: #f4f1ea;
  border: 1px solid #e4dfd2;
  cursor: pointer;
  position: relative;
}
.color-picker:hover { border-color: #1a1816; }
.color-label {
  font-family: 'Courier New', 'JetBrains Mono', Courier, monospace;
  font-size: 10px;
  color: #8a857c;
  letter-spacing: 0.05em;
}
.color-picker input[type="color"] {
  width: 20px;
  height: 20px;
  border: 1px solid #1a1816;
  padding: 0;
  background: none;
  cursor: pointer;
  appearance: none;
  -webkit-appearance: none;
}
.color-picker input[type="color"]::-webkit-color-swatch-wrapper { padding: 0; }
.color-picker input[type="color"]::-webkit-color-swatch { border: none; }
.color-hex {
  font-size: 10px;
  color: #1a1816;
  margin-left: auto;
  letter-spacing: 0.02em;
}

.swatch-row {
  display: grid;
  grid-template-columns: repeat(8, 1fr);
  gap: 4px;
}
.swatch {
  position: relative;
  height: 28px;
  border: 1px solid #e4dfd2;
  cursor: pointer;
  background: none;
  padding: 0;
  overflow: hidden;
  transition: border-color 0.1s ease;
}
.swatch:hover { border-color: #1a1816; }
.sw-bg {
  position: absolute;
  inset: 0;
}
.sw-fg {
  position: absolute;
  inset: 0;
  clip-path: polygon(100% 0, 100% 100%, 0 100%);
}

/* ─── Presets ─── */
.preset-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 6px;
}
.preset-btn {
  display: flex;
  flex-direction: column;
  align-items: stretch;
  gap: 4px;
  padding: 4px;
  background: #f4f1ea;
  border: 1px solid #e4dfd2;
  cursor: pointer;
  font-family: 'Inter', sans-serif;
  font-size: 10px;
  font-weight: 500;
  color: #3a3530;
  letter-spacing: 0.02em;
  transition: all 0.1s ease;
}
.preset-btn:hover { border-color: #1a1816; color: #1a1816; }
.preset-thumb-canvas {
  width: 100%;
  aspect-ratio: 1;
  display: block;
  border: 1px solid rgba(26,24,22,0.08);
}
.preset-btn span:not(.preset-thumb-canvas) {
  text-align: center;
  padding: 2px 0 1px;
}

/* ─── Slider value (editable) ─── */
.slider-value {
  cursor: text;
  transition: background 0.1s ease;
}
.slider-value:hover { background: #d8d2c4; }
.slider-value-input {
  font-family: 'Courier New', 'JetBrains Mono', Courier, monospace;
  font-size: 11px;
  background: #1a1816;
  color: #f4f1ea;
  border: none;
  outline: none;
  padding: 1px 6px;
  width: 60px;
  text-align: right;
  font-weight: 500;
}

/* ─── Section action button ─── */
.section-action {
  margin-left: auto;
  background: none;
  border: none;
  cursor: pointer;
  font-size: 9px;
  letter-spacing: 0.1em;
  color: #8a857c;
  padding: 2px 6px;
  border: 1px solid #e4dfd2;
  transition: all 0.1s ease;
}
.section-action:hover { color: #c4593a; border-color: #c4593a; }

/* ─── Aspect presets ─── */
.aspect-row {
  display: grid;
  grid-template-columns: repeat(6, 1fr);
  gap: 4px;
  margin-bottom: 14px;
}
.aspect-btn {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 4px;
  padding: 8px 2px 6px;
  background: #f4f1ea;
  border: 1px solid #e4dfd2;
  cursor: pointer;
  transition: all 0.1s ease;
  font-family: inherit;
}
.aspect-btn:hover { border-color: #1a1816; }
.aspect-btn.active {
  background: #1a1816;
  border-color: #1a1816;
}
.aspect-btn.active .aspect-shape { border-color: #c4593a; background: rgba(196,89,58,0.15); }
.aspect-btn.active .aspect-label { color: #f4f1ea; }
.aspect-shape {
  width: 18px;
  max-height: 18px;
  border: 1px solid #1a1816;
  background: rgba(26,24,22,0.05);
}
.aspect-label {
  font-size: 9px;
  color: #5a554c;
  letter-spacing: 0.04em;
}

/* ─── History chips ─── */
.history-row {
  display: flex;
  align-items: center;
  gap: 8px;
  margin-top: 12px;
  padding-top: 12px;
  border-top: 1px dashed #e4dfd2;
}
.history-label {
  font-size: 9px;
  color: #8a857c;
  letter-spacing: 0.08em;
}
.history-chips {
  display: flex;
  flex-wrap: wrap;
  gap: 3px;
  flex: 1;
}
.hist-chip {
  font-family: 'Courier New', 'JetBrains Mono', Courier, monospace;
  font-size: 9px;
  padding: 2px 5px;
  background: #f4f1ea;
  border: 1px solid #e4dfd2;
  color: #5a554c;
  cursor: pointer;
  letter-spacing: 0.02em;
  transition: all 0.1s ease;
}
.hist-chip:hover { color: #1a1816; border-color: #1a1816; }
.hist-chip.active { background: #1a1816; color: #f4f1ea; border-color: #1a1816; }

/* ─── Mirror segmented control ─── */
.mirror-row {
  display: flex;
  align-items: center;
  gap: 10px;
}
.mirror-label {
  font-size: 9px;
  color: #8a857c;
  letter-spacing: 0.08em;
}
.mirror-seg {
  display: flex;
  flex: 1;
  border: 1px solid #d8d2c4;
  background: #f4f1ea;
}
.mirror-btn {
  flex: 1;
  font-family: 'Courier New', 'JetBrains Mono', Courier, monospace;
  font-size: 10px;
  padding: 5px 4px;
  background: none;
  border: none;
  border-right: 1px solid #d8d2c4;
  cursor: pointer;
  color: #5a554c;
  letter-spacing: 0.04em;
  transition: all 0.1s ease;
}
.mirror-btn:last-child { border-right: none; }
.mirror-btn:hover { color: #1a1816; background: #ebe7dd; }
.mirror-btn.active {
  background: #1a1816;
  color: #f4f1ea;
}

/* ─── Toggle ─── */
.toggle-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-top: 14px;
  padding: 8px 10px;
  background: #f4f1ea;
  border: 1px solid #e4dfd2;
  cursor: pointer;
}
.toggle-label {
  font-size: 11px;
  font-weight: 500;
  color: #3a3530;
}
.toggle-pill {
  width: 32px;
  height: 18px;
  background: #d8d2c4;
  border: 1px solid #1a1816;
  position: relative;
  cursor: pointer;
  padding: 0;
  transition: background 0.15s ease;
}
.toggle-pill.on { background: #c4593a; }
.toggle-knob {
  position: absolute;
  left: 1px; top: 1px;
  width: 12px; height: 12px;
  background: #f4f1ea;
  transition: left 0.15s ease;
}
.toggle-pill.on .toggle-knob { left: 17px; }

/* ─── Stage toolbar ─── */
.stage-toolbar {
  position: absolute;
  top: 20px;
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  gap: 0;
  border: 1px solid #1a1816;
  background: #f4f1ea;
}
.st-btn {
  width: 32px;
  height: 32px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: none;
  border: none;
  border-right: 1px solid #d8d2c4;
  cursor: pointer;
  color: #1a1816;
  transition: all 0.1s ease;
}
.st-btn:last-child { border-right: none; }
.st-btn:hover { background: #1a1816; color: #f4f1ea; }
.st-btn.active { background: #1a1816; color: #f4f1ea; }

.accent { color: #c4593a !important; }

/* ─── Tile preview ─── */
.tile-preview {
  position: relative;
  transform-origin: center;
  box-shadow: 0 30px 60px -20px rgba(0,0,0,0.25), 0 0 0 1px rgba(26,24,22,0.15);
}
.tile-grid {
  position: relative;
  display: block;
}
.tile-seam-h, .tile-seam-v {
  position: absolute;
  background: repeating-linear-gradient(to right, rgba(196,89,58,0.6) 0 4px, transparent 4px 8px);
  pointer-events: none;
}
.tile-seam-h {
  left: 0; right: 0;
  height: 1px;
}
.tile-seam-v {
  top: 0; bottom: 0;
  width: 1px;
  background: repeating-linear-gradient(to bottom, rgba(196,89,58,0.6) 0 4px, transparent 4px 8px);
}

/* ─── Tile verdict badge ─── */
.tile-verdict {
  position: absolute;
  top: 64px;
  left: 50%;
  transform: translateX(-50%);
  font-size: 10px;
  letter-spacing: 0.1em;
  padding: 6px 14px;
  border: 1px solid currentColor;
  background: #f4f1ea;
  z-index: 5;
  white-space: nowrap;
}
.tile-verdict.ok { color: #2c4a3e; }
.tile-verdict.warn { color: #c4593a; }

/* ─── Keyboard hints ─── */
.panel-footer {
  padding: 14px 20px 20px;
  border-top: 1px solid #e4dfd2;
  margin-top: auto;
  background: #f4f1ea;
}
.kbd-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 6px 12px;
}
.kbd-row {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 10px;
  color: #5a554c;
}
.kbd-row kbd {
  font-family: 'Courier New', 'JetBrains Mono', Courier, monospace;
  font-size: 9px;
  padding: 2px 6px;
  background: #ebe7dd;
  border: 1px solid #d8d2c4;
  border-bottom-width: 2px;
  color: #1a1816;
  font-weight: 500;
  min-width: 40px;
  text-align: center;
}

/* ─── Button group ─── */
.btn-group {
  display: flex;
  gap: 0;
}
.btn-group .btn { margin-left: 0 !important; border-right-width: 0; }
.btn-group .btn:last-child { border-right-width: 1px; }
.icon-btn {
  width: 32px;
  padding: 7px 0;
  justify-content: center;
}
.btn:disabled { opacity: 0.35; cursor: not-allowed; }
.btn:disabled:hover { background: #f4f1ea; color: #1a1816; }

/* ─── Export menu ─── */
.export-wrap { position: relative; margin-left: 4px; }
.export-btn { padding-right: 10px !important; }
.export-overlay {
  position: fixed;
  inset: 0;
  z-index: 90;
}
.export-menu {
  position: absolute;
  top: calc(100% + 6px);
  right: 0;
  width: 240px;
  background: #f9f7f1;
  border: 1px solid #1a1816;
  z-index: 100;
  box-shadow: 0 12px 32px -8px rgba(26,24,22,0.25);
  padding: 6px 0;
}
.em-section-label {
  font-family: 'Courier New', monospace;
  font-size: 9px;
  letter-spacing: 0.12em;
  color: #8a857c;
  padding: 8px 14px 4px;
}
.em-item {
  display: flex;
  align-items: center;
  justify-content: space-between;
  width: 100%;
  padding: 8px 14px;
  background: none;
  border: none;
  font-family: 'Inter', sans-serif;
  font-size: 12px;
  color: #1a1816;
  cursor: pointer;
  text-align: left;
  transition: background 0.08s ease;
}
.em-item:hover { background: #1a1816; color: #f4f1ea; }
.em-item:hover .em-spec { color: #c4593a; }
.em-spec {
  font-size: 10px;
  color: #8a857c;
  letter-spacing: 0.02em;
}

/* ─── Variations strip ─── */
.var-strip {
  position: absolute;
  bottom: 20px;
  right: 20px;
  display: flex;
  flex-direction: column;
  align-items: flex-end;
  gap: 6px;
  padding: 8px 10px;
  background: rgba(244,241,234,0.94);
  backdrop-filter: blur(8px);
  border: 1px solid #1a1816;
}
.var-label {
  font-size: 9px;
  letter-spacing: 0.1em;
  color: #8a857c;
  text-transform: uppercase;
}
.var-thumbs {
  display: flex;
  gap: 4px;
}
.var-thumb {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 3px;
  padding: 2px;
  background: #f4f1ea;
  border: 1px solid #d8d2c4;
  cursor: pointer;
  transition: all 0.1s ease;
}
.var-thumb canvas {
  width: 48px;
  height: 48px;
  display: block;
}
.var-thumb:hover { border-color: #1a1816; }
.var-thumb.active {
  border-color: #c4593a;
  border-width: 1px;
  box-shadow: 0 0 0 1px #c4593a;
}
.var-thumb-seed {
  font-size: 8px;
  color: #5a554c;
  letter-spacing: 0.04em;
}
.var-thumb.active .var-thumb-seed { color: #c4593a; }
.var-shuffle {
  align-self: stretch;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 4px;
  padding: 4px;
  font-size: 9px;
  letter-spacing: 0.08em;
  background: #1a1816;
  color: #f4f1ea;
  border: none;
  cursor: pointer;
  transition: background 0.1s ease;
}
.var-shuffle:hover { background: #c4593a; }

/* ─── Library ─── */
.lib-empty {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 6px;
  padding: 22px 12px;
  background: #f4f1ea;
  border: 1px dashed #d8d2c4;
}
.lib-empty-icon { color: #8a857c; }
.lib-empty-text {
  font-size: 11px;
  color: #5a554c;
  font-weight: 500;
}
.lib-empty-sub {
  font-size: 10px;
  color: #8a857c;
  display: flex;
  align-items: center;
  gap: 4px;
}
.lib-empty-sub kbd {
  font-family: 'Courier New', monospace;
  font-size: 9px;
  padding: 1px 5px;
  background: #ebe7dd;
  border: 1px solid #d8d2c4;
  border-bottom-width: 2px;
}

.lib-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 6px;
}
.lib-item {
  position: relative;
  display: flex;
  flex-direction: column;
  background: #f4f1ea;
  border: 1px solid #e4dfd2;
  cursor: pointer;
  transition: border-color 0.1s ease;
  overflow: hidden;
}
.lib-item:hover { border-color: #1a1816; }
.lib-thumb {
  width: 100%;
  aspect-ratio: 1;
  display: block;
  object-fit: cover;
}
.lib-meta {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 3px 5px;
  border-top: 1px solid #e4dfd2;
}
.lib-name {
  font-size: 9px;
  color: #1a1816;
  letter-spacing: 0;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}
.lib-del {
  background: none;
  border: none;
  cursor: pointer;
  color: #8a857c;
  padding: 2px;
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  transition: all 0.1s ease;
}
.lib-item:hover .lib-del { opacity: 1; }
.lib-del:hover { color: #c4593a; }

/* ─── Help overlay ─── */
.help-backdrop {
  position: fixed;
  inset: 0;
  background: rgba(26,24,22,0.65);
  z-index: 1000;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 32px;
  backdrop-filter: blur(4px);
  animation: helpFade 0.2s ease;
}
@keyframes helpFade {
  from { opacity: 0; }
  to { opacity: 1; }
}
.help-modal {
  width: 100%;
  max-width: 720px;
  max-height: 90vh;
  background: #f4f1ea;
  border: 1px solid #1a1816;
  box-shadow: 0 30px 80px -10px rgba(0,0,0,0.5);
  display: flex;
  flex-direction: column;
  animation: helpSlide 0.25s cubic-bezier(0.2, 0.8, 0.2, 1);
}
@keyframes helpSlide {
  from { transform: translateY(12px); opacity: 0; }
  to { transform: translateY(0); opacity: 1; }
}
.help-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 22px 26px 18px;
  border-bottom: 1px solid #1a1816;
  background: #f9f7f1;
}
.help-eyebrow {
  font-size: 10px;
  letter-spacing: 0.12em;
  color: #c4593a;
  margin-bottom: 2px;
}
.help-title {
  font-size: 18px;
  font-weight: 600;
  letter-spacing: -0.01em;
  color: #1a1816;
}
.help-close {
  width: 32px;
  height: 32px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: none;
  border: 1px solid #1a1816;
  color: #1a1816;
  cursor: pointer;
  transition: all 0.1s ease;
}
.help-close:hover { background: #1a1816; color: #f4f1ea; }

.help-body {
  overflow-y: auto;
  padding: 22px 26px 26px;
}
.help-body::-webkit-scrollbar { width: 8px; }
.help-body::-webkit-scrollbar-track { background: transparent; }
.help-body::-webkit-scrollbar-thumb { background: #d8d2c4; }

.help-intro {
  font-size: 13px;
  line-height: 1.55;
  color: #3a3530;
  padding: 12px 14px;
  border-left: 2px solid #c4593a;
  background: #f9f7f1;
  margin-bottom: 22px;
}

.help-section {
  margin-bottom: 26px;
}
.help-section-title {
  font-size: 10px;
  text-transform: uppercase;
  letter-spacing: 0.14em;
  color: #8a857c;
  padding-bottom: 8px;
  margin-bottom: 12px;
  border-bottom: 1px solid #e4dfd2;
  font-weight: 600;
}

.help-block {
  margin-bottom: 14px;
  padding-bottom: 12px;
  border-bottom: 1px dashed #e4dfd2;
}
.help-block:last-child { border-bottom: none; }
.help-block-head {
  display: flex;
  align-items: baseline;
  gap: 8px;
  margin-bottom: 4px;
}
.help-block-num {
  font-size: 10px;
  color: #8a857c;
  letter-spacing: 0.05em;
}
.help-block-title {
  font-size: 13px;
  font-weight: 600;
  letter-spacing: 0;
  color: #1a1816;
  text-transform: uppercase;
  letter-spacing: 0.06em;
}
.help-block-desc {
  font-size: 12px;
  line-height: 1.55;
  color: #3a3530;
  margin-bottom: 8px;
}

.help-list {
  display: grid;
  gap: 4px;
  margin-top: 6px;
}
.help-item {
  display: grid;
  grid-template-columns: 120px 1fr;
  gap: 14px;
  align-items: baseline;
  padding: 4px 0;
}
.help-item-key {
  font-size: 11px;
  font-weight: 500;
  color: #1a1816;
  letter-spacing: 0.02em;
  text-transform: none;
}
.help-item-val {
  font-size: 12px;
  line-height: 1.5;
  color: #5a554c;
}

.help-kbd-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 6px 18px;
}
.help-kbd-row {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 4px 0;
  font-size: 12px;
  color: #3a3530;
}
.help-kbd-row kbd {
  font-size: 10px;
  padding: 3px 8px;
  background: #ebe7dd;
  border: 1px solid #d8d2c4;
  border-bottom-width: 2px;
  color: #1a1816;
  font-weight: 500;
  min-width: 44px;
  text-align: center;
}

.help-footer {
  display: flex;
  align-items: center;
  gap: 8px;
  margin-top: 18px;
  padding-top: 14px;
  border-top: 1px solid #e4dfd2;
  font-size: 11px;
  color: #8a857c;
  font-style: italic;
}