:root {
  --bg: #070b07;
  --panel: #0d140d;
  --fg: #7dff9b;
  --fg-dim: #3f7a4f;
  --fg-faint: #244a2c;
  --accent: #9affc0;
  --warn: #ffd479;
  --break: #ff7d7d;
}

* { box-sizing: border-box; }

html, body {
  margin: 0;
  background: var(--bg);
  color: var(--fg);
  font-family: "DejaVu Sans Mono", "SF Mono", Menlo, Consolas, monospace;
  font-size: 15px;
  line-height: 1.5;
  min-height: 100vh;
}

/* CRT scanline overlay */
.scanlines {
  position: fixed;
  inset: 0;
  pointer-events: none;
  z-index: 100;
  background: repeating-linear-gradient(
    to bottom,
    rgba(0, 0, 0, 0) 0px,
    rgba(0, 0, 0, 0) 2px,
    rgba(0, 0, 0, 0.25) 3px
  );
}

header {
  text-align: center;
  padding: 28px 16px 8px;
}

h1 {
  margin: 0;
  font-size: 44px;
  letter-spacing: 14px;
  text-shadow: 0 0 12px var(--fg-dim);
}

.subtitle {
  margin: 4px 0 0;
  color: var(--fg-dim);
  font-size: 13px;
}

.status {
  margin: 8px 0 0;
  color: var(--fg-dim);
  font-size: 12px;
  letter-spacing: 2px;
}
#mult-status { color: var(--accent); }

main {
  display: flex;
  gap: 16px;
  max-width: 880px;
  margin: 16px auto;
  padding: 0 16px;
  align-items: flex-start;
}

.panel {
  background: var(--panel);
  border: 1px solid var(--fg-faint);
  border-radius: 4px;
  padding: 14px 16px;
}

.panel h2 {
  margin: 0 0 10px;
  font-size: 12px;
  color: var(--fg-dim);
  font-weight: normal;
}

.log-panel { flex: 1 1 0; }
.play-panel { flex: 1 1 0; }

/* system log */
.log {
  height: 320px;
  overflow-y: auto;
  font-size: 13px;
  color: var(--fg-dim);
  white-space: pre-wrap;
  word-break: break-word;
}
.log .line { margin: 0 0 3px; }
.log .line.big { color: var(--accent); text-shadow: 0 0 8px var(--fg-dim); }
.log .line.warn { color: var(--warn); }
.log .line.div {
  color: var(--fg-faint);
  text-align: center;
  letter-spacing: 3px;
  margin: 8px 0;
}

/* readout */
.readout {
  text-align: center;
  margin-bottom: 18px;
}
.cycles {
  display: block;
  font-size: 40px;
  color: var(--accent);
  text-shadow: 0 0 14px var(--fg-dim);
}
.cycles.bump { animation: bump 0.16s ease; }
@keyframes bump { 50% { transform: scale(1.13); } }

.unit { color: var(--fg-dim); font-size: 13px; }
.rate {
  display: block;
  margin-top: 2px;
  color: var(--fg-dim);
  font-size: 13px;
}

/* buttons */
.controls {
  display: flex;
  flex-direction: column;
  gap: 8px;
  margin-bottom: 18px;
}

/* generated buy buttons — same vertical rhythm as the rest of the controls */
#buy-list {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

/* generated building stat rows sit transparently inside .stats */
#building-stats { display: contents; }

/* buy-quantity toggle */
.qty {
  display: flex;
  gap: 6px;
}
.qty-btn {
  flex: 1;
  font-family: inherit;
  font-size: 12px;
  color: var(--fg-dim);
  background: #0a120a;
  border: 1px solid var(--fg-faint);
  border-radius: 3px;
  padding: 5px 4px;
  cursor: pointer;
  transition: background 0.08s;
}
.qty-btn:hover { background: #112011; }
.qty-btn.active {
  color: var(--bg);
  background: var(--fg-dim);
  border-color: var(--fg-dim);
}

.btn {
  font-family: inherit;
  font-size: 14px;
  color: var(--fg);
  background: #0a120a;
  border: 1px solid var(--fg-dim);
  border-radius: 3px;
  padding: 11px 12px;
  cursor: pointer;
  text-align: left;
  transition: background 0.08s, transform 0.04s;
}
.btn:hover:not(:disabled) { background: #112011; }
.btn:active:not(:disabled) { transform: translateY(1px); }

.btn-primary {
  border-color: var(--fg);
  text-shadow: 0 0 6px var(--fg-dim);
}
.btn .hint { float: right; color: var(--fg-dim); }

/* clicked feedback */
.btn.pulse { background: #1c331c; }

/* cannot afford */
.btn:disabled {
  cursor: not-allowed;
  opacity: 0.4;
}

/* retired: automated away, no longer yours to do */
.btn.retired {
  cursor: default;
  opacity: 0.3;
  text-decoration: line-through;
  border-style: dashed;
}
.btn.retired .hint { text-decoration: none; }

.btn-break {
  border-color: var(--break);
  color: var(--break);
  text-align: center;
  letter-spacing: 3px;
  text-shadow: 0 0 10px rgba(255, 125, 125, 0.5);
  animation: breathe 2.4s ease-in-out infinite;
}
.btn-break:hover:not(:disabled) { background: #2a1414; }
@keyframes breathe {
  0%, 100% { box-shadow: 0 0 0 rgba(255, 125, 125, 0); }
  50% { box-shadow: 0 0 16px rgba(255, 125, 125, 0.35); }
}

/* stats */
.stats {
  font-size: 13px;
  color: var(--fg-dim);
  border-top: 1px solid var(--fg-faint);
  padding-top: 10px;
}
.stats div {
  display: flex;
  justify-content: space-between;
  padding: 2px 0;
}
.stats .k { color: var(--fg-faint); }
.stats span:last-child { color: var(--fg); }

/* upgrades */
.upgrades-panel {
  max-width: 880px;
  margin: 0 auto 16px;
}
.upgrades {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 8px;
}
.upgrade {
  display: flex;
  flex-direction: column;
  gap: 2px;
}
.upgrade .up-name { color: var(--accent); }
.upgrade .up-desc { color: var(--fg-dim); font-size: 12px; }
.upgrade .hint {
  float: none;
  align-self: flex-start;
  margin-top: 4px;
}
.upgrade.retired { text-decoration: none; }
.upgrade.retired .up-name { text-decoration: line-through; }

/* fog of war — locked upgrades show as obscured slots */
.upgrade.fog .up-name,
.upgrade.fog .up-desc { color: var(--fg-faint); letter-spacing: 2px; }
.ach.locked .ach-name { color: var(--fg-faint); letter-spacing: 2px; }

footer {
  max-width: 880px;
  margin: 0 auto 24px;
  padding: 0 16px;
  display: flex;
  justify-content: space-between;
  font-size: 12px;
  color: var(--fg-faint);
}

.btn-text {
  font-family: inherit;
  font-size: 12px;
  background: none;
  border: none;
  color: var(--fg-faint);
  cursor: pointer;
  text-decoration: underline;
}
.btn-text:hover { color: var(--fg-dim); }

/* ascension / ending overlay */
.ending {
  position: fixed;
  inset: 0;
  z-index: 50;
  display: flex;
  align-items: center;
  justify-content: center;
  background: rgba(7, 11, 7, 0.93);
  animation: fade-in 1.6s ease;
}
/* author `display` rules override the HTML `hidden` attribute, so restore it */
.ending[hidden] { display: none; }
@keyframes fade-in { from { opacity: 0; } to { opacity: 1; } }

.ending-card {
  text-align: center;
  max-width: 480px;
  max-height: 90vh;
  overflow-y: auto;
  padding: 32px;
}

/* meta-prestige shop inside the true-ending overlay */
.meta-shop {
  margin: 22px 0;
  text-align: left;
  border-top: 1px solid var(--fg-faint);
  border-bottom: 1px solid var(--fg-faint);
  padding: 14px 0;
}
.meta-shop h3 {
  margin: 0 0 10px;
  font-size: 12px;
  font-weight: normal;
  color: var(--accent);
}
.meta-up {
  display: flex;
  flex-direction: column;
  gap: 2px;
  width: 100%;
  margin-bottom: 6px;
}
.meta-up .lvl { color: var(--fg-faint); }
.meta-up .up-desc { color: var(--fg-dim); font-size: 12px; }
.meta-up .hint {
  float: none;
  align-self: flex-start;
  margin-top: 4px;
}

/* settings modal */
.setting {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin: 12px 0;
}
.toggle {
  font-family: inherit;
  font-size: 13px;
  color: var(--fg);
  background: #0a120a;
  border: 1px solid var(--fg-dim);
  border-radius: 3px;
  padding: 5px 14px;
  cursor: pointer;
  min-width: 100px;
}
.toggle:hover { background: #112011; }
.settings-section {
  border-top: 1px solid var(--fg-faint);
  margin-top: 16px;
  padding-top: 14px;
  text-align: center;
}
.settings-section h3 {
  margin: 0 0 10px;
  font-size: 12px;
  font-weight: normal;
  color: var(--fg-dim);
}
.settings-section .btn {
  width: 100%;
  margin-bottom: 6px;
  text-align: center;
}
#set-import-text {
  width: 100%;
  height: 56px;
  resize: vertical;
  font-family: inherit;
  font-size: 11px;
  color: var(--fg-dim);
  background: #0a120a;
  border: 1px solid var(--fg-faint);
  border-radius: 3px;
  padding: 6px;
  margin-bottom: 6px;
}
.set-msg {
  color: var(--warn);
  font-size: 12px;
  min-height: 16px;
  margin: 4px 0 0;
}

/* CRT scanlines off */
body.no-crt .scanlines { display: none; }

/* achievements */
.achievements-panel {
  max-width: 880px;
  margin: 0 auto 16px;
}
.achievements {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 8px;
}
.ach {
  display: flex;
  flex-direction: column;
  gap: 2px;
  border: 1px solid var(--fg-faint);
  border-radius: 3px;
  padding: 8px 10px;
}
.ach.locked { opacity: 0.4; }
.ach.unlocked { border-color: var(--fg-dim); }
.ach-name { color: var(--fg); }
.ach.unlocked .ach-name {
  color: var(--accent);
  text-shadow: 0 0 8px var(--fg-dim);
}
.ach-desc { color: var(--fg-dim); font-size: 12px; }
.ending-card h2 {
  color: var(--break);
  font-weight: normal;
  font-size: 14px;
  margin: 0 0 22px;
}
.ending-card p {
  margin: 8px 0;
  color: var(--fg-dim);
}
.ending-counter {
  margin-top: 22px !important;
  color: var(--accent) !important;
  text-shadow: 0 0 10px var(--fg-dim);
}
.ending-card .btn-break { margin-top: 24px; }
.ending-card .btn-text { margin-top: 22px; }

@media (max-width: 720px) {
  main { flex-direction: column; }
  .upgrades,
  .achievements { grid-template-columns: 1fr; }
  h1 { font-size: 32px; letter-spacing: 8px; }
}