:root {
  --bg: #f6f2eb;
  --panel: #fffaf2;
  --panel-strong: #fff3df;
  --text: #2d2720;
  --muted: #7b6d5e;
  --line: #e5d6c2;
  --accent: #8a5a2b;
  --accent-dark: #603813;
  --danger: #9b2c2c;
  --success: #2f6f4f;
  --shadow: 0 18px 45px rgba(65, 43, 20, 0.12);
}
* { box-sizing: border-box; }
body {
  margin: 0;
  font-family: system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  background: radial-gradient(circle at top, #fff8ec 0, var(--bg) 42%, #efe3d1 100%);
  color: var(--text);
}
button, input, textarea { font: inherit; }
button { cursor: pointer; }
button:disabled { cursor: not-allowed; opacity: 0.55; }
.site-header {
  max-width: 1180px;
  margin: 0 auto;
  padding: 24px 18px 12px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 16px;
}
h1, h2, h3, p { margin-top: 0; }
h1 { margin-bottom: 0; letter-spacing: -0.04em; }
h2 { margin-bottom: 4px; }
h3 { margin-bottom: 8px; }
.eyebrow, .label, .status-label {
  color: var(--muted);
  font-size: 12px;
  text-transform: uppercase;
  letter-spacing: 0.13em;
  font-weight: 800;
  margin-bottom: 4px;
}
.header-actions, .hero-actions, .dev-actions { display: flex; flex-wrap: wrap; gap: 8px; }
.status-bar {
  max-width: 1180px;
  margin: 0 auto 12px;
  padding: 0 18px;
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 10px;
}
.status-bar > div {
  background: rgba(255,250,242,0.88);
  border: 1px solid var(--line);
  border-radius: 18px;
  padding: 12px 14px;
  box-shadow: 0 8px 24px rgba(65, 43, 20, 0.07);
}
.status-bar strong { display: block; font-size: 22px; letter-spacing: -0.03em; }
.tab-nav {
  max-width: 1180px;
  margin: 0 auto 16px;
  padding: 0 18px;
  display: flex;
  gap: 8px;
  overflow-x: auto;
}
.tab-button {
  border: 1px solid var(--line);
  background: rgba(255,250,242,0.8);
  color: var(--text);
  padding: 10px 16px;
  border-radius: 999px;
  font-weight: 800;
  white-space: nowrap;
}
.tab-button.is-active {
  background: var(--accent);
  color: #fff;
  border-color: var(--accent);
}
.layout { max-width: 1180px; margin: 0 auto; padding: 0 18px 42px; }
.tab-panel { display: none; }
.tab-panel.is-active { display: block; }
.panel {
  background: rgba(255,250,242,0.94);
  border: 1px solid var(--line);
  border-radius: 24px;
  padding: 20px;
  margin-bottom: 16px;
  box-shadow: var(--shadow);
}
.hero-panel, .section-title, .prestige-box, .ln2-box {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 16px;
}
.subtext, .hint, .cpu-meta { color: var(--muted); line-height: 1.6; }
.hint { max-width: 520px; text-align: right; }
.primary-button, .ghost-button, .danger-button, .prestige-button, .ln2-button {
  border: 0;
  border-radius: 14px;
  padding: 10px 14px;
  font-weight: 800;
}
.primary-button, .prestige-button, .ln2-button { background: var(--accent); color: #fff; }
.primary-button:hover, .prestige-button:hover, .ln2-button:hover { background: var(--accent-dark); }
.ghost-button { background: #f2e4d2; color: var(--text); border: 1px solid var(--line); }
.danger-button { background: var(--danger); color: #fff; }

.era-tabs {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin: 12px 0 8px;
}
.era-tab {
  border: 1px solid var(--line);
  background: #f2e4d2;
  color: var(--text);
  border-radius: 999px;
  padding: 8px 13px;
  font-weight: 800;
}
.era-tab.is-active {
  background: var(--accent);
  color: #fff;
  border-color: var(--accent);
}
.era-tab:disabled {
  opacity: 0.45;
  cursor: not-allowed;
}

.cpu-list, .upgrade-list, .legacy-list, .museum-list {
  display: grid;
  gap: 12px;
  margin-top: 16px;
}
.cpu-card {
  display: grid;
  grid-template-columns: 76px 1fr auto;
  gap: 14px;
  align-items: center;
  padding: 14px;
  background: #fffdf8;
  border: 1px solid var(--line);
  border-radius: 20px;
}
.cpu-card img {
  width: 72px;
  height: 72px;
  object-fit: contain;
  image-rendering: auto;
}
.cpu-title { display: flex; flex-wrap: wrap; gap: 8px; align-items: center; margin-bottom: 4px; }
.cpu-title h3 { margin: 0; }
.badge {
  display: inline-flex;
  align-items: center;
  border-radius: 999px;
  padding: 3px 8px;
  background: var(--panel-strong);
  border: 1px solid var(--line);
  color: var(--muted);
  font-size: 12px;
  font-weight: 800;
}
.rank-row { display: flex; flex-wrap: wrap; gap: 6px; margin-top: 8px; }
.rank-pill { border-radius: 999px; padding: 3px 8px; font-size: 12px; border: 1px solid var(--line); background: #f7efe4; }
.rank-dud { color: #7c6f65; }
.rank-normal { color: #4c4c4c; }
.rank-good { color: #2f6f4f; }
.rank-great { color: #885d00; font-weight: 800; }
.rank-legendary { color: #8c2f85; font-weight: 900; }
.upgrade-card, .legacy-card, .museum-card {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 12px;
  background: #fffdf8;
  border: 1px solid var(--line);
  border-radius: 18px;
  padding: 14px;
}
.next-unlock { color: var(--muted); margin: 16px 0 0; }
.prestige-target { font-weight: 900; font-size: 20px; margin-bottom: 8px; }
.prestige-gain { color: var(--success); font-weight: 900; margin-bottom: 8px; }

.legacy-summary {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 16px;
  margin-top: 18px;
  padding: 14px 16px;
  border: 1px solid var(--line);
  border-radius: 18px;
  background: var(--panel-strong);
}
.legacy-summary strong {
  display: block;
  font-size: 28px;
  letter-spacing: -0.04em;
}
.legacy-summary p {
  margin: 0;
  color: var(--muted);
  line-height: 1.6;
  text-align: right;
}
.legacy-card button[disabled] { opacity: 0.55; cursor: not-allowed; }

.legacy-title { margin-top: 22px; }
.ln2-status { font-weight: 900; font-size: 19px; margin-bottom: 8px; }
.save-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }
.save-textarea {
  width: 100%;
  min-height: 160px;
  resize: vertical;
  border: 1px solid var(--line);
  border-radius: 16px;
  padding: 12px;
  background: #fffdf8;
  color: var(--text);
  margin-top: 10px;
}
.dev-grid { display: grid; grid-template-columns: minmax(220px, 1fr) 2fr; gap: 12px; align-items: end; }
.dev-field { display: grid; gap: 6px; color: var(--muted); font-weight: 700; }
.dev-field input {
  border: 1px solid var(--line);
  border-radius: 14px;
  padding: 10px 12px;
  background: #fffdf8;
}
.reset-row { margin-top: 14px; }
.log-list { list-style: none; padding: 0; margin: 0; display: grid; gap: 8px; }
.log-list li { padding: 10px 12px; background: #fffdf8; border: 1px solid var(--line); border-radius: 14px; color: var(--muted); }
@media (max-width: 760px) {
  .site-header, .hero-panel, .section-title, .prestige-box, .ln2-box { align-items: flex-start; flex-direction: column; }
  .hint { text-align: left; }
  .status-bar { grid-template-columns: repeat(2, 1fr); }
  .cpu-card { grid-template-columns: 60px 1fr; }
  .cpu-card img { width: 58px; height: 58px; }
  .cpu-actions { grid-column: 1 / -1; display: flex; justify-content: flex-end; }
  .save-grid, .dev-grid { grid-template-columns: 1fr; }
}