/* Bot Arena — shared styles. Workshop "garage" on a blueprint floor; Fall Robotics orange. */
:root {
  color-scheme: dark;
  --bg: #1b1a1e;
  --floor: #242328;
  --panel: #2b2a30;
  --panel-hi: #33323a;
  --line: #44424b;
  --fg: #f4f1ea;
  --muted: #aaa6b0;
  --orange: #f46524;
  --orange-hi: #ff8a50;
  --orange-soft: #f4652429;
  --blue: #38a7f0;
  --blue-soft: #38a7f029;
  --purple: #c58cff;
  --gold: #ffd23f;
  --good: #4fd18b;
  --bad: #ff5d5d;
  --ink: #141316;
  --display: "Chakra Petch", "Arial Narrow", Arial, sans-serif;
  --body: "Barlow Semi Condensed", "Arial Narrow", Arial, sans-serif;
  --mono: "JetBrains Mono", "Courier New", monospace;
}
* { box-sizing: border-box; }
[hidden] { display: none !important; }
html, body { min-height: 100%; margin: 0; }
body {
  background-color: var(--bg);
  background-image:
    radial-gradient(1200px 500px at 50% -200px, #f4652418, transparent 70%),
    linear-gradient(var(--floor) 1px, transparent 1px),
    linear-gradient(90deg, var(--floor) 1px, transparent 1px);
  background-size: 100% 100%, 28px 28px, 28px 28px;
  color: var(--fg);
  font-family: var(--body);
  font-size: 17px;
  line-height: 1.45;
}
button { font: inherit; color: inherit; }
a { color: var(--orange-hi); }
.wrap {
  max-width: 1180px; margin: 0 auto;
  padding-block: 18px 56px;
  padding-left: max(16px, env(safe-area-inset-left, 0px));
  padding-right: max(16px, env(safe-area-inset-right, 0px));
}
header.top { display: flex; flex-wrap: wrap; align-items: center; justify-content: space-between; gap: 14px 24px; margin-bottom: 16px; }
.brand { display: flex; align-items: center; gap: 12px; text-decoration: none; color: inherit; }
.logo { width: 46px; height: 46px; flex: none; }
.brand small { display: block; font-family: var(--mono); font-size: 11px; letter-spacing: .16em; text-transform: uppercase; color: var(--orange); }
h1 { font-family: var(--display); font-weight: 700; font-size: clamp(30px, 6vw, 44px); line-height: 1; margin: 2px 0 0; text-wrap: balance; }
h2 { font-family: var(--display); font-size: 21px; margin: 0; line-height: 1.2; }
h3 { font-family: var(--display); font-size: 14px; letter-spacing: .1em; text-transform: uppercase; color: var(--muted); margin: 0 0 8px; font-weight: 500; display: flex; align-items: center; gap: 8px; }
p { margin: 0; }
:focus-visible { outline: 2px solid var(--blue); outline-offset: 2px; }
.intro { color: var(--muted); max-width: 70ch; }
.intro b { color: var(--fg); font-weight: 600; }
.panel { background: linear-gradient(180deg, var(--panel-hi), var(--panel) 120px); border: 1px solid var(--line); border-radius: 14px; padding: 16px; min-width: 0; }
.chip { font-family: var(--mono); font-size: 10px; font-weight: 700; letter-spacing: .08em; padding: 2px 6px; border-radius: 4px; line-height: 1.5; text-transform: uppercase; }
.c-sense { background: var(--blue-soft); color: var(--blue); }
.c-think { background: #c58cff26; color: var(--purple); }
.c-act { background: var(--orange-soft); color: var(--orange-hi); }
.c-win { background: #4fd18b26; color: var(--good); }
.c-move { background: #ffffff14; color: var(--fg); }
.btn {
  font-family: var(--display); font-weight: 700; font-size: 15px; letter-spacing: .03em;
  background: var(--orange); color: var(--ink); border: 0; border-radius: 9px; padding: 11px 18px; cursor: pointer;
  box-shadow: 0 3px 0 #a93d0c; transition: transform .08s, box-shadow .08s, filter .15s; text-decoration: none; display: inline-flex; align-items: center; justify-content: center; gap: 8px;
}
.btn:hover { filter: brightness(1.08); }
.btn:active { transform: translateY(3px); box-shadow: 0 0 0 #a93d0c; }
.btn.ghost { background: var(--panel-hi); color: var(--fg); box-shadow: 0 3px 0 #18171b; border: 1px solid var(--line); }
.btn.big { font-size: 19px; padding: 13px 26px; }
.btn.huge { font-size: 24px; padding: 16px 30px; border-radius: 12px; }
.btn:disabled { opacity: .45; cursor: not-allowed; transform: none; }
.small { font-size: 13px; color: var(--muted); }
.soundbtn { font-family: var(--mono); font-size: 12px; background: var(--panel); border: 1px solid var(--line); color: var(--muted); border-radius: 10px; padding: 10px 12px; cursor: pointer; }
.soundbtn[aria-pressed="true"] { color: var(--good); border-color: #4fd18b66; }
input[type=text] {
  font-family: var(--mono); font-size: 17px; letter-spacing: .04em;
  background: var(--bg); color: var(--fg); border: 1px solid var(--line); border-radius: 9px; padding: 10px 12px; width: 100%;
}
input.upper { text-transform: uppercase; }
canvas { display: block; width: 100%; max-width: 100%; }
.warn { color: var(--bad); font-weight: 600; font-size: 15px; min-height: 1.45em; }
.toast { color: var(--good); font-weight: 600; font-size: 15px; min-height: 1.45em; }

/* builder */
.slot { margin-top: 16px; }
.choices { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 8px; }
.choice {
  text-align: left; background: var(--bg); border: 1.5px solid var(--line); border-radius: 10px;
  padding: 10px; cursor: pointer; line-height: 1.2; display: grid; gap: 3px; position: relative;
  transition: border-color .15s, background .15s, transform .1s;
}
.choice:hover { border-color: #6a6772; transform: translateY(-1px); }
.choice b { font-family: var(--display); font-size: 16px; }
.choice span { color: var(--muted); font-size: 13px; }
.choice em { font-style: normal; font-family: var(--mono); font-size: 11px; color: var(--muted); margin-top: 2px; }
.choice[aria-pressed="true"] { border-color: var(--orange); background: var(--orange-soft); }
.choice[aria-pressed="true"]::after { content: "✓"; position: absolute; top: 7px; right: 9px; font-size: 13px; color: var(--orange); font-weight: 700; }
.choices.locked { pointer-events: none; opacity: .55; }
.pdesc { margin-top: 8px; font-size: 14px; line-height: 1.35; color: var(--muted); }
.pdesc b { color: var(--fg); font-family: var(--display); font-weight: 700; }
/* Custom brain rules editor (builder.js renderRules) */
.rules { margin-top: 10px; display: grid; gap: 8px; padding: 10px; border: 1.5px dashed var(--line); border-radius: 10px; background: var(--bg); }
.rrow { display: flex; flex-wrap: wrap; align-items: center; gap: 6px; }
.rrow + .rrow { border-top: 1px solid var(--line); padding-top: 8px; }
.rrow b { font-family: var(--mono); font-size: 12px; color: var(--ink); background: var(--orange); border-radius: 6px; padding: 2px 7px; }
.rrow span { font-family: var(--display); font-size: 13px; letter-spacing: .08em; color: var(--muted); }
.rrow select { font: inherit; font-size: 14px; background: var(--panel); color: var(--fg); border: 1px solid var(--line); border-radius: 8px; padding: 6px 8px; min-width: 0; max-width: 100%; cursor: pointer; }
.rdel { margin-left: auto; background: none; border: 1px solid var(--line); color: var(--muted); border-radius: 8px; width: 32px; height: 32px; cursor: pointer; font-size: 18px; line-height: 1; }
.rdel:hover { color: var(--bad); border-color: var(--bad); }
.radd { justify-self: start; padding: 7px 12px; font-size: 14px; }
.rnote { margin: 0; font-size: 13px; color: var(--muted); }
.swatches { display: flex; gap: 10px; flex-wrap: wrap; }
.swatch { width: 36px; height: 36px; border-radius: 50%; border: 0; cursor: pointer; box-shadow: inset 0 -4px 0 #0003; transition: transform .15s; }
.swatch[aria-pressed="true"] { transform: scale(1.12); outline: 3px solid var(--fg); outline-offset: 3px; }
.meter { height: 14px; background: var(--bg); border-radius: 7px; overflow: hidden; border: 1px solid var(--line); position: relative; }
.meter > i { display: block; height: 100%; background: linear-gradient(90deg, #3cb877, var(--good)); transition: width .35s cubic-bezier(.3,1.4,.5,1); border-radius: 7px; }
.meter.over > i { background: linear-gradient(90deg, #d93f3f, var(--bad)); }
.wrow { display: flex; justify-content: space-between; font-family: var(--mono); font-size: 12px; color: var(--muted); margin-bottom: 6px; letter-spacing: .06em; }
.stats { display: grid; grid-template-columns: 4.5em minmax(0, 1fr) 2em; gap: 8px 10px; align-items: center; font-size: 15px; }
.stats .bar { height: 10px; background: var(--bg); border-radius: 5px; overflow: hidden; }
.stats .bar i { display: block; height: 100%; border-radius: 5px; transition: width .4s cubic-bezier(.3,1.4,.5,1); }
.stats .n { font-family: var(--mono); text-align: right; font-variant-numeric: tabular-nums; font-weight: 700; }

/* battle HUD */
.stage-card { padding: 0; overflow: hidden; }
.arena-stage { aspect-ratio: 16 / 9; }
.huds { display: grid; grid-template-columns: minmax(0, 1fr) auto minmax(0, 1fr); gap: 12px; align-items: center; padding: 12px 16px; border-top: 1px solid var(--line); }
.hud .who { display: flex; justify-content: space-between; gap: 8px; font-family: var(--display); font-weight: 700; font-size: 17px; }
.hud .who span:first-child { overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.hud .who span:last-child { font-family: var(--mono); font-variant-numeric: tabular-nums; }
.hud.b .who { flex-direction: row-reverse; }
.hpbar { height: 16px; background: var(--bg); border: 1px solid var(--line); border-radius: 8px; overflow: hidden; margin-top: 5px; position: relative; }
.hpbar i { position: absolute; inset: 0 auto 0 0; display: block; height: 100%; border-radius: 8px; }
.hpbar .ghost { background: #fff8; transition: width .7s ease .35s; }
.hpbar .main { transition: width .25s ease; }
.hud.b .hpbar i { inset: 0 0 0 auto; }
.hud.a .main { background: linear-gradient(90deg, #c84a12, var(--orange)); }
.hud.b .main { background: linear-gradient(270deg, #1d7fc4, var(--blue)); }
.vs-mini { font-family: var(--display); font-weight: 700; color: var(--muted); font-size: 14px; }
.stage-ctrl { display: flex; flex-wrap: wrap; gap: 8px; align-items: center; padding: 0 16px 16px; }
.stage-ctrl .spacer { flex: 1; }
.seg { display: inline-flex; border: 1px solid var(--line); border-radius: 9px; overflow: hidden; }
.seg button { background: var(--bg); border: 0; padding: 8px 12px; cursor: pointer; font-family: var(--mono); font-size: 13px; color: var(--muted); }
.seg button[aria-pressed="true"] { background: var(--panel-hi); color: var(--fg); }
.log { padding: 12px 16px 16px; border-top: 1px solid var(--line); font-size: 15px; max-height: 190px; overflow-y: auto; display: grid; gap: 5px; }
.log:empty::before { content: "The battle log will show every Sense, Think, and Act move here."; color: var(--muted); font-size: 14px; }
.log div { display: grid; grid-template-columns: 4.8em minmax(0, 1fr); gap: 8px; align-items: baseline; animation: logIn .25s ease-out; }
.log .chip { text-align: center; }
.log .a { color: var(--orange-hi); font-weight: 600; }
.log .b { color: var(--blue); font-weight: 600; }
.why { padding: 14px 16px; border-top: 1px solid var(--line); display: grid; gap: 8px; animation: logIn .35s ease-out; background: linear-gradient(180deg, #ffd23f10, transparent); }
.why h4 { margin: 0; font-family: var(--display); font-size: 19px; color: var(--gold); }
.why ul { margin: 0; padding-left: 20px; display: grid; gap: 4px; }
.why li { font-size: 16px; }
.why .tip { font-size: 15px; padding: 8px 10px; border-radius: 9px; border: 1.5px dashed var(--orange); background: var(--orange-soft); }
.why .tip b { font-family: var(--display); color: var(--orange-hi); }
@keyframes logIn { from { opacity: 0; transform: translateX(-6px); } to { opacity: 1; transform: none; } }
@keyframes pop { 0% { transform: scale(.3); opacity: 0; } 100% { transform: scale(1); opacity: 1; } }
@media (prefers-reduced-motion: reduce) { *, *::before, *::after { animation: none !important; transition: none !important; } }