:root {
  --bg: #f5f2ea;
  --ink: #1d1b16;
  --ink-soft: #6a6458;
  --card: #fffdf8;
  --rule: #e3ddd0;
  --accent: #00a29c;
  --jump: #e8590c;
  --run: #2f9e44;
}
@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) {
    --bg: #15140f;
    --ink: #f1ede3;
    --ink-soft: #a39d90;
    --card: #1f1d17;
    --rule: #34312a;
  }
}
:root[data-theme="dark"] {
  --bg: #15140f;
  --ink: #f1ede3;
  --ink-soft: #a39d90;
  --card: #1f1d17;
  --rule: #34312a;
}

* { box-sizing: border-box; }
body {
  margin: 0;
  background: var(--bg);
  color: var(--ink);
  font: 16px/1.55 "Plus Jakarta Sans", system-ui, sans-serif;
}
a { color: var(--accent); }
code { font-size: .9em; background: var(--rule); padding: .05em .35em; border-radius: 4px; }

.top, main, .foot { max-width: 1240px; margin: 0 auto; padding: 0 16px; }
.top { display: flex; align-items: center; gap: 14px; padding-top: 22px; }
.brand { font: 800 1.6rem "Plus Jakarta Sans", sans-serif; color: var(--ink); text-decoration: none; letter-spacing: -.02em; }
.tag { font-size: .8rem; color: var(--ink-soft); border: 1px solid var(--rule); border-radius: 99px; padding: .15rem .7rem; }

.intro { max-width: 760px; margin: 28px 0 22px; }
.intro h1 { font-size: clamp(1.7rem, 4vw, 2.6rem); line-height: 1.1; margin: 0 0 .6rem; letter-spacing: -.02em; }
.intro p { margin: 0; color: var(--ink-soft); }
.intro strong { color: var(--ink); }

.stage { display: grid; grid-template-columns: minmax(0, 1fr) 300px; gap: 18px; align-items: start; }
@media (max-width: 900px) { .stage { grid-template-columns: 1fr; } }

.stage { grid-template-rows: auto 1fr; }
.stage > .screen, .stage > .spawn { grid-column: 1; }
.stage > .spawn { align-self: start; margin-top: 0; }
.stage > .panel { grid-column: 2; grid-row: 1 / span 2; }
@media (max-width: 900px) { .stage > .panel { grid-column: 1; grid-row: auto; } }
.spawn { display: flex; flex-wrap: wrap; align-items: center; gap: 10px; margin-top: -6px; }
.spawn-label { color: var(--ink-soft); font-size: .9rem; }
.spawn button { background: var(--card); color: var(--ink); border: 1px solid var(--rule); border-radius: 8px; padding: .45rem .8rem; font-weight: 600; }
.spawn button:hover:not(:disabled) { border-color: #7048e8; }
.spawn button:disabled { opacity: .45; cursor: default; }
.spawn-count { color: var(--ink-soft); font-size: .85rem; font-variant-numeric: tabular-nums; }
.screen { position: relative; border-radius: 14px; overflow: hidden; border: 1px solid var(--rule); background: #7ec8f0; }
canvas { display: block; width: 100%; height: auto; image-rendering: pixelated; }
.hud { position: absolute; top: 10px; left: 12px; right: 12px; display: flex; justify-content: space-between;
  font: 12px "Press Start 2P", monospace; color: #fff; text-shadow: 2px 2px 0 rgba(0,0,0,.35); pointer-events: none; }
.toast { position: absolute; left: 50%; bottom: 18px; transform: translateX(-50%); max-width: 90%;
  background: rgba(20,18,14,.88); color: #fff; padding: .6rem .9rem; border-radius: 10px; font-size: .85rem; }
.toast b { color: #ffd43b; }
.waiting { position: absolute; inset: 0; display: grid; place-items: center; color: #fff;
  font: 12px "Press Start 2P", monospace; text-shadow: 2px 2px 0 rgba(0,0,0,.35); background: rgba(0,0,0,.15); }
.waiting[hidden] { display: none; }

.panel { background: var(--card); border: 1px solid var(--rule); border-radius: 14px; padding: 16px; }
.big-num { font: 800 3.2rem/1 "Plus Jakarta Sans", sans-serif; letter-spacing: -.03em; }
.big-num small { font-size: 1.1rem; margin-left: .2rem; color: var(--ink-soft); }
.big-label { color: var(--ink-soft); font-size: .85rem; margin-top: .2rem; }
.nums { display: grid; grid-template-columns: 1fr 1fr; gap: 8px 14px; margin: 16px 0; }
.nums div { border-top: 1px solid var(--rule); padding-top: 6px; }
.nums dt { font-size: .72rem; color: var(--ink-soft); text-transform: uppercase; letter-spacing: .04em; }
.nums dd { margin: 0; font-weight: 800; font-size: 1.1rem; font-variant-numeric: tabular-nums; }
.panel h2 { font-size: .8rem; text-transform: uppercase; letter-spacing: .05em; color: var(--ink-soft); margin: 4px 0 8px; }
.log { list-style: none; margin: 0; padding: 0; font-size: .82rem; min-height: 220px; }
.log li { display: grid; grid-template-columns: 1fr auto; gap: 2px 8px; padding: 6px 0; border-top: 1px solid var(--rule); }
.log .text { color: var(--ink-soft); overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.log .ans { font-weight: 800; text-transform: uppercase; font-size: .75rem; }
.log .ans.jump { color: var(--jump); }
.log .ans.run { color: var(--run); }
.log .meta { grid-column: 1 / -1; font-size: .72rem; color: var(--ink-soft); font-variant-numeric: tabular-nums; }

.how { display: grid; grid-template-columns: repeat(3, 1fr); gap: 18px; margin: 30px 0 10px; }
@media (max-width: 760px) { .how { grid-template-columns: 1fr; } }
.how h3 { margin: 0 0 .3rem; font-size: 1rem; }
.how p { margin: 0; color: var(--ink-soft); font-size: .92rem; }

.foot { display: flex; justify-content: space-between; flex-wrap: wrap; gap: 10px; padding-top: 30px; padding-bottom: 30px; color: var(--ink-soft); font-size: .85rem; }
.admin { display: flex; gap: 12px; align-items: center; }
.admin a { color: var(--ink-soft); }
button { font: inherit; cursor: pointer; }
#reset { background: var(--jump); color: #fff; border: 0; border-radius: 8px; padding: .4rem .8rem; font-weight: 600; }
button.link { background: none; border: 0; color: var(--ink-soft); text-decoration: underline; padding: 0; }