:root {
  --ink: #050505;
  --paper: #ffffff;
  --soft: #f4f4f4;
  --line: #d8d8d8;
  --muted: #666666;
  --panel: rgba(255,255,255,0.96);
}

* { box-sizing: border-box; }

html, body { min-height: 100%; }

body {
  margin: 0;
  background: var(--paper);
  color: var(--ink);
  font-family: Inter, ui-sans-serif, -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Microsoft YaHei", sans-serif;
  -webkit-font-smoothing: antialiased;
}

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

.life-shell {
  width: min(1500px, calc(100% - 40px));
  margin: 0 auto;
  padding: 24px 0 42px;
}

.life-topbar {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 24px;
  margin-bottom: 22px;
  border-bottom: 2px solid var(--ink);
  padding-bottom: 18px;
}

.life-back {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  color: var(--ink);
  text-decoration: none;
  font-size: 13px;
  font-weight: 700;
  letter-spacing: .02em;
  margin-bottom: 12px;
}
.life-back:hover { text-decoration: underline; }

.life-title {
  margin: 0;
  font-size: clamp(28px, 4vw, 52px);
  line-height: 1;
  letter-spacing: -0.045em;
  font-weight: 900;
}

.life-subtitle {
  margin-top: 10px;
  color: var(--muted);
  max-width: 760px;
  font-size: 13px;
  line-height: 1.7;
}

.life-dimension-switch {
  flex: 0 0 auto;
  display: inline-flex;
  border: 1px solid var(--ink);
  border-radius: 999px;
  overflow: hidden;
  background: var(--paper);
  margin-top: 4px;
}
.life-dimension-switch span {
  padding: 8px 14px;
  font-size: 12px;
  font-weight: 800;
  white-space: nowrap;
}
.life-dimension-switch .active { background: var(--ink); color: var(--paper); }
.life-dimension-switch .future { color: #777; border-left: 1px solid var(--ink); }

.life-layout {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 330px;
  gap: 18px;
  align-items: start;
}

.life-stage {
  min-width: 0;
  border: 2px solid var(--ink);
  background: var(--paper);
}

.life-stage-head {
  min-height: 52px;
  padding: 10px 12px;
  border-bottom: 1px solid var(--ink);
  display: flex;
  gap: 10px;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
}

.life-primary-controls, .life-stats {
  display: flex;
  gap: 7px;
  align-items: center;
  flex-wrap: wrap;
}

.life-btn {
  appearance: none;
  border: 1px solid var(--ink);
  background: var(--paper);
  border-radius: 0;
  padding: 7px 11px;
  min-height: 34px;
  cursor: pointer;
  font-size: 12px;
  font-weight: 800;
  transition: background .12s ease, color .12s ease, transform .08s ease;
}
.life-btn:hover, .life-btn.is-active { background: var(--ink); color: var(--paper); }
.life-btn:active { transform: translateY(1px); }
.life-btn.primary { background: var(--ink); color: var(--paper); }
.life-btn.primary:hover { background: #252525; }
.life-btn[disabled] { opacity: .35; cursor: not-allowed; }

.life-stat {
  display: inline-flex;
  align-items: baseline;
  gap: 5px;
  padding: 4px 6px;
  font-size: 11px;
  color: #555;
  font-variant-numeric: tabular-nums;
}
.life-stat strong { color: var(--ink); font-size: 13px; }

.life-canvas-wrap {
  position: relative;
  width: 100%;
  background: var(--paper);
  overflow: hidden;
  user-select: none;
  touch-action: none;
}

#life-canvas {
  width: 100%;
  height: auto;
  display: block;
  cursor: crosshair;
  background: var(--paper);
  image-rendering: pixelated;
}

.life-board-note {
  display: flex;
  justify-content: space-between;
  gap: 12px;
  padding: 9px 12px;
  border-top: 1px solid var(--ink);
  font-size: 11px;
  color: #555;
  line-height: 1.5;
}
.life-board-note strong { color: var(--ink); }

.life-sidebar {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.life-panel {
  border: 1px solid var(--ink);
  background: var(--panel);
  padding: 14px;
}

.life-panel-title {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 8px;
  margin: 0 0 11px;
  padding-bottom: 8px;
  border-bottom: 1px solid var(--ink);
  font-size: 13px;
  font-weight: 900;
  letter-spacing: .04em;
  text-transform: uppercase;
}
.life-panel-title small {
  color: #777;
  font-size: 10px;
  letter-spacing: 0;
  font-weight: 600;
  text-transform: none;
}

.life-row { margin: 11px 0; }
.life-row:last-child { margin-bottom: 0; }
.life-label-line {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  margin-bottom: 6px;
  font-size: 11px;
  font-weight: 800;
}
.life-value { font-variant-numeric: tabular-nums; color: #555; font-weight: 700; }

.life-range {
  width: 100%;
  accent-color: var(--ink);
  cursor: pointer;
}

.life-inline {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 7px;
}

.life-select {
  width: 100%;
  border: 1px solid var(--ink);
  border-radius: 0;
  background: var(--paper);
  padding: 8px 9px;
  font-size: 12px;
  font-weight: 700;
  outline: none;
}

.pattern-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 6px;
}
.pattern-btn {
  border: 1px solid var(--ink);
  background: var(--paper);
  text-align: left;
  min-height: 46px;
  padding: 7px 8px;
  cursor: pointer;
  transition: .12s ease;
}
.pattern-btn:hover, .pattern-btn.is-active { background: var(--ink); color: var(--paper); }
.pattern-btn strong { display: block; font-size: 11px; }
.pattern-btn span { display: block; margin-top: 2px; font-size: 9px; opacity: .62; }

.rule-readout {
  border: 1px solid var(--ink);
  background: var(--ink);
  color: var(--paper);
  padding: 9px 10px;
  font: 800 13px/1.2 ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
  letter-spacing: .06em;
  margin-bottom: 10px;
}
.rule-group { margin-top: 9px; }
.rule-group-label {
  font-size: 10px;
  font-weight: 900;
  margin-bottom: 5px;
}
.rule-numbers {
  display: grid;
  grid-template-columns: repeat(9, 1fr);
  gap: 3px;
}
.rule-number {
  border: 1px solid var(--ink);
  background: var(--paper);
  aspect-ratio: 1;
  min-width: 0;
  padding: 0;
  cursor: pointer;
  font-size: 10px;
  font-weight: 900;
}
.rule-number.is-on { background: var(--ink); color: var(--paper); }

.preset-grid {
  display: flex;
  flex-wrap: wrap;
  gap: 5px;
  margin-top: 10px;
}
.rule-preset {
  border: 1px solid #a0a0a0;
  background: var(--paper);
  padding: 5px 7px;
  font-size: 9px;
  cursor: pointer;
  font-weight: 700;
}
.rule-preset:hover { border-color: var(--ink); background: var(--soft); }

.life-help {
  margin: 0;
  padding-left: 17px;
  color: #555;
  font-size: 10px;
  line-height: 1.65;
}
.life-help li + li { margin-top: 3px; }
.life-kbd {
  display: inline-block;
  border: 1px solid #aaa;
  background: #f8f8f8;
  padding: 0 4px;
  color: var(--ink);
  font: 800 9px/1.5 ui-monospace, monospace;
}

.life-status {
  margin-top: 10px;
  min-height: 18px;
  font-size: 10px;
  font-weight: 700;
  color: #555;
}

@media (max-width: 980px) {
  .life-layout { grid-template-columns: 1fr; }
  .life-sidebar { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); }
}

@media (max-width: 640px) {
  .life-shell { width: min(100% - 20px, 1500px); padding-top: 14px; }
  .life-topbar { flex-direction: column; gap: 12px; }
  .life-dimension-switch { align-self: flex-start; }
  .life-sidebar { display: flex; }
  .life-board-note { flex-direction: column; gap: 3px; }
  .life-stage-head { align-items: flex-start; }
  .pattern-grid { grid-template-columns: 1fr 1fr; }
}