/* petri — design system
   one handcrafted pixel language. amber is precious. no gradients. */

:root {
  --void:  #0A0F0A;
  --glass: #12291A;
  --glass-2: #0E2114;
  --deep:  #1E4025;
  --deep-2:#16301C;
  --body:  #4E8C4A;
  --body-2:#3A6B38;
  --sage:  #C9DCB8;
  --sage-dim: #8FA985;
  --sage-faint: #5C7355;
  --amber: #F5A623;
  --hot:   #FFE08A;
  --blood: #8C3B2E; /* death only */

  --font-px: 'Pixelify Sans', monospace;
  --font-mono: 'IBM Plex Mono', ui-monospace, monospace;
}

* { margin: 0; padding: 0; box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  background: var(--void);
  color: var(--sage);
  font-family: var(--font-mono);
  font-size: 15px;
  line-height: 1.65;
  overflow-x: hidden;
}

::selection { background: var(--deep); color: var(--sage); }

/* pixel scrollbar */
::-webkit-scrollbar { width: 12px; height: 10px; }
::-webkit-scrollbar-track { background: var(--void); border-left: 2px solid var(--deep-2); }
::-webkit-scrollbar-thumb { background: var(--deep); border: 2px solid var(--void); }
::-webkit-scrollbar-thumb:hover { background: var(--body-2); }

a { color: var(--sage); text-decoration: none; }

canvas { image-rendering: pixelated; image-rendering: crisp-edges; }

/* ---------------------------------------------------------------- top bar */
.topbar {
  position: fixed; top: 0; left: 0; right: 0; z-index: 50;
  height: 46px;
  display: flex; align-items: center; justify-content: space-between;
  padding: 0 18px;
  background: var(--void);
  border-bottom: 2px solid var(--deep-2);
}
.topbar-left, .topbar-right { display: flex; align-items: center; gap: 14px; }

.wordmark {
  font-family: var(--font-px);
  font-size: 17px;
  letter-spacing: 2px;
  color: var(--sage);
  text-transform: uppercase;
}

.live-tag { display: flex; align-items: center; gap: 7px; }
.live-dot {
  width: 6px; height: 6px;
  background: var(--amber);
  animation: blink 2.4s steps(2, jump-none) infinite;
}
.live-label {
  font-size: 11px; color: var(--sage-dim); letter-spacing: 1px;
}
@keyframes blink { 0%, 60% { opacity: 1; } 61%, 100% { opacity: 0.25; } }

.chip {
  display: inline-flex; align-items: center; gap: 8px;
  font-family: var(--font-mono); font-size: 12px; letter-spacing: 0.5px;
  color: var(--sage-dim);
  background: var(--glass-2);
  border: 2px solid var(--deep);
  padding: 5px 11px;
  cursor: default;
  user-select: none;
}
.chip .chip-key { color: var(--sage-faint); }
.chip .chip-val { color: var(--sage); }
.chip.copyable { cursor: pointer; }
.chip.copyable:hover { border-color: var(--body-2); }
.chip.copied .chip-val { color: var(--amber); }

.x-link {
  display: inline-flex; align-items: center; justify-content: center;
  width: 30px; height: 30px;
  background: var(--glass-2);
  border: 2px solid var(--deep);
}
.x-link:hover { border-color: var(--body-2); }
.x-link svg { display: block; }

/* ------------------------------------------------------------------ hero */
.hero {
  min-height: 100vh;
  display: flex; flex-direction: column;
  align-items: center; justify-content: center;
  padding: 64px 16px 30px;
  gap: 14px;
}

.stage-wrap { position: relative; line-height: 0; }
#world {
  display: block;
  background: var(--void);
}

/* hover outline handled in-canvas; cursor only */
#world.pointing { cursor: pointer; }

.under-strip {
  display: flex; align-items: stretch; gap: 14px;
  width: 100%; justify-content: center;
  flex-wrap: wrap;
}

.status-strip {
  display: flex; align-items: center; flex-wrap: wrap;
  gap: 0;
  border: 2px solid var(--deep-2);
  background: var(--glass-2);
  padding: 8px 4px;
}
.status-cell {
  padding: 2px 16px;
  border-right: 2px solid var(--deep-2);
  font-size: 12px; color: var(--sage-dim);
  white-space: nowrap;
}
.status-cell:last-child { border-right: none; }
.status-cell b {
  display: block; font-weight: 500; color: var(--sage);
  font-size: 13px; letter-spacing: 0.5px;
}

/* signal inbox */
.inbox {
  position: relative;
  width: 250px;
  border: 2px solid var(--deep);
  background: var(--glass-2);
  padding: 10px 14px 12px;
  overflow: hidden;
}
.inbox-title {
  font-family: var(--font-px);
  font-size: 12px; letter-spacing: 1px;
  color: var(--sage-dim);
  margin-bottom: 6px;
}
.inbox-body { font-size: 13px; color: var(--sage-faint); min-height: 40px; }
.inbox-body.has-signal { color: var(--sage); }
.inbox-scan {
  position: absolute; inset: 0; pointer-events: none;
  background: repeating-linear-gradient(
    to bottom, transparent 0 2px, rgba(30, 64, 37, 0.16) 2px 4px);
  animation: scan 9s steps(60) infinite;
}
@keyframes scan { 0% { background-position-y: 0; } 100% { background-position-y: 120px; } }

.scroll-hint {
  margin-top: 10px;
  font-size: 11px; color: var(--sage-faint); letter-spacing: 2px;
  animation: blink 3s steps(2, jump-none) infinite;
}

/* -------------------------------------------------------------- life card */
.life-card {
  position: absolute; z-index: 40;
  width: 288px;
  background: var(--glass-2);
  border: 2px solid var(--deep);
  box-shadow: 4px 4px 0 rgba(6, 10, 6, 0.85);
  padding: 12px 14px 14px;
  font-size: 12px;
  display: none;
  line-height: 1.5;
}
.life-card.open { display: block; }
.lc-head {
  display: flex; justify-content: space-between; align-items: baseline;
  border-bottom: 2px solid var(--deep-2);
  padding-bottom: 7px; margin-bottom: 8px;
}
.lc-id { font-family: var(--font-px); font-size: 14px; color: var(--sage); letter-spacing: 1px; }
.lc-species { color: var(--body); font-size: 12px; }
.lc-row { display: flex; justify-content: space-between; gap: 10px; color: var(--sage-dim); }
.lc-row span:last-child { color: var(--sage); text-align: right; }
.lc-sec {
  margin-top: 8px; padding-top: 7px;
  border-top: 2px solid var(--deep-2);
}
.lc-sec-title { font-size: 10px; letter-spacing: 1.5px; color: var(--sage-faint); margin-bottom: 4px; }
.lc-bar { display: inline-flex; gap: 2px; vertical-align: middle; }
.lc-bar i { width: 6px; height: 8px; background: var(--deep); }
.lc-bar i.on { background: var(--body); }
.lc-bar i.hi { background: var(--amber); }
.lc-gene { display: grid; grid-template-columns: 92px 1fr 44px; gap: 2px 8px; align-items: center; }
.lc-gene .g-name { color: var(--sage-faint); font-size: 11px; }
.lc-gene .g-val { color: var(--sage-dim); font-size: 11px; text-align: right; }
.lc-gbar { display: flex; gap: 1px; }
.lc-gbar i { flex: 1; height: 6px; background: var(--deep-2); }
.lc-gbar i.on { background: var(--body-2); }
.lc-gbar i.mut { background: var(--sage-dim); }
.lc-obs { margin-top: 8px; color: var(--sage-dim); font-size: 11.5px; }
.lc-mut { color: var(--sage-dim); font-size: 11px; }
.lc-mut em { color: var(--sage); font-style: normal; }

/* -------------------------------------------------------------- sections */
section { max-width: 1080px; margin: 0 auto; padding: 90px 24px; }

h2 {
  font-family: var(--font-px);
  font-weight: 500;
  font-size: 26px;
  color: var(--sage);
  margin-bottom: 34px;
  letter-spacing: 1px;
}

.section-note { color: var(--sage-dim); max-width: 640px; margin-bottom: 26px; }

/* ladder */
.ladder {
  display: flex; gap: 10px; flex-wrap: wrap;
}
.rung {
  position: relative;
  flex: 1 1 108px; min-width: 104px; max-width: 220px;
  border: 2px solid var(--deep-2);
  background: var(--glass-2);
  padding: 12px 12px 11px;
  min-height: 86px;
}
.rung-index { font-size: 10px; color: var(--sage-faint); letter-spacing: 1px; }
.rung-name {
  font-family: var(--font-px); font-size: 13px; letter-spacing: 0.5px;
  margin-top: 5px; color: var(--sage-faint);
}
.rung-meta { font-size: 11px; color: var(--sage-faint); margin-top: 6px; }
.rung .tick {
  position: absolute; top: 10px; right: 10px;
  width: 8px; height: 8px; background: var(--deep-2);
}
.rung.reached { border-color: var(--deep); }
.rung.reached .rung-name { color: var(--sage); }
.rung.reached .rung-meta { color: var(--sage-dim); }
.rung.reached .tick { background: var(--amber); }
.rung.frontier { border-color: var(--body-2); }
.rung.frontier .rung-name { color: var(--sage-dim); }
.rung.frontier .tick { background: var(--deep); animation: blink 2s steps(2, jump-none) infinite; }
.rung.fog { border-color: var(--deep-2); }
.rung.fog canvas { position: absolute; inset: 0; width: 100%; height: 100%; opacity: 0.9; }

/* epoch log */
.epoch-list { display: flex; flex-direction: column; gap: 12px; }
.epoch-entry {
  border: 2px solid var(--deep-2);
  background: var(--glass-2);
}
.epoch-head {
  display: flex; align-items: baseline; gap: 18px; flex-wrap: wrap;
  padding: 12px 16px;
  cursor: pointer; user-select: none;
}
.epoch-head:hover { background: var(--glass); }
.epoch-num { font-family: var(--font-px); font-size: 14px; color: var(--sage); letter-spacing: 1px; }
.epoch-date { font-size: 12px; color: var(--sage-faint); }
.epoch-brief { font-size: 12px; color: var(--sage-dim); flex: 1; min-width: 160px; }
.epoch-arrow { font-size: 11px; color: var(--sage-faint); }
.epoch-body { display: none; padding: 4px 16px 16px; border-top: 2px solid var(--deep-2); }
.epoch-entry.open .epoch-body { display: block; }
.epoch-sub { font-size: 10px; letter-spacing: 1.5px; color: var(--sage-faint); margin: 13px 0 6px; }
.decision-line { font-size: 13px; color: var(--sage-dim); padding-left: 14px; position: relative; }
.decision-line::before { content: '·'; position: absolute; left: 2px; color: var(--body-2); }
.epoch-report {
  color: var(--sage); font-size: 13.5px;
  background: var(--void);
  border: 2px solid var(--deep-2);
  border-left: 4px solid var(--deep);
  padding: 12px 14px;
  white-space: pre-wrap;
}
.epoch-fail { color: var(--blood); font-size: 13px; }
.evt-death { color: var(--blood); }
.epoch-window { font-size: 12.5px; color: var(--sage-dim); }
.log-more {
  margin-top: 16px;
  font-family: var(--font-mono); font-size: 12px; letter-spacing: 1px;
  background: var(--glass-2); color: var(--sage-dim);
  border: 2px solid var(--deep); padding: 8px 18px; cursor: pointer;
}
.log-more:hover { border-color: var(--body-2); color: var(--sage); }

/* how it works */
.how-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 40px 56px; }
.how-item h3 {
  font-family: var(--font-px); font-weight: 500;
  font-size: 16px; color: var(--sage); margin-bottom: 10px; letter-spacing: 0.5px;
}
.how-item p { color: var(--sage-dim); font-size: 14px; }
.how-item ul { list-style: none; margin-top: 8px; }
.how-item li { color: var(--sage-dim); font-size: 13.5px; padding-left: 16px; position: relative; }
.how-item li::before { content: '—'; position: absolute; left: 0; color: var(--body-2); }

/* god mind */
.terminal {
  border: 2px solid var(--deep);
  background: var(--void);
  font-size: 13px;
}
.terminal-title {
  padding: 8px 14px;
  border-bottom: 2px solid var(--deep-2);
  color: var(--sage-faint); font-size: 11px; letter-spacing: 1.5px;
  display: flex; justify-content: space-between;
}
.terminal-body { padding: 14px 16px; overflow-x: auto; }
.terminal-body pre {
  font-family: var(--font-mono); font-size: 12.5px; line-height: 1.6;
  color: var(--sage-dim); white-space: pre;
}
.terminal-body .k { color: var(--sage); }
.terminal-body .s { color: var(--body); }
.terminal-body .c { color: var(--sage-faint); }
.godmind-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 18px; margin-top: 18px; }
.godmind-grid .wide { grid-column: 1 / -1; }
.godmind-grid .terminal { min-width: 0; }
.terminal { max-width: 100%; }
.terminal-body pre { max-width: 100%; }
.counters { display: flex; gap: 14px; flex-wrap: wrap; margin-top: 18px; }
.counter {
  flex: 1 1 150px;
  border: 2px solid var(--deep-2); background: var(--glass-2);
  padding: 12px 16px;
}
.counter b { display: block; font-family: var(--font-px); font-weight: 500; font-size: 19px; color: var(--sage); }
.counter span { font-size: 11px; color: var(--sage-faint); letter-spacing: 1px; }

/* footer */
footer {
  border-top: 2px solid var(--deep-2);
  padding: 34px 24px 44px;
  display: flex; align-items: center; justify-content: space-between;
  max-width: 1080px; margin: 40px auto 0; gap: 16px; flex-wrap: wrap;
}
.footer-note { font-size: 12px; color: var(--sage-faint); }

/* mobile */
.desktop-note { display: none; }
@media (max-width: 860px) {
  .how-grid, .godmind-grid { grid-template-columns: 1fr; }
  .hero { padding-top: 70px; }
  .inbox { width: 100%; }
  .desktop-note {
    display: block; font-size: 11px; color: var(--sage-faint);
    letter-spacing: 0.5px; margin-top: 6px;
  }
  .topbar { padding: 0 10px; }
  .topbar-left, .topbar-right { gap: 8px; }
}

@media (prefers-reduced-motion: reduce) {
  .live-dot, .rung.frontier .tick, .scroll-hint { animation: none; }
  .inbox-scan { animation: none; }
  html { scroll-behavior: auto; }
}