/* Vesica: cream paper, three translucent inks that mix where they cross. */
:root {
  --paper: #fbf6ec;
  --card: #ffffff;
  --ink: #1b1a17;
  --ink-2: #5d5850;
  --ink-3: #958e83;
  --line: rgba(27, 26, 23, .14);
  --a: #ff6b57;
  --b: #3fa7f5;
  --c: #ffc93c;
  --blend: multiply;
  --fill-op: .5;
  --ok: #1f9d55;
  --no: #d64532;
  color-scheme: light;
}
@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) {
    --paper: #15140f; --card: #211f19; --ink: #f4efe4; --ink-2: #c4bcae; --ink-3: #8d8678;
    --line: rgba(244, 239, 228, .14);
    --a: #c2412f; --b: #1e6fb0; --c: #a8811a;
    --blend: screen; --fill-op: .9;
    --ok: #3cc477; --no: #ef6a55;
    color-scheme: dark;
  }
}
:root[data-theme="dark"] {
  --paper: #15140f; --card: #211f19; --ink: #f4efe4; --ink-2: #c4bcae; --ink-3: #8d8678;
  --line: rgba(244, 239, 228, .14);
  --a: #c2412f; --b: #1e6fb0; --c: #a8811a;
  --blend: screen; --fill-op: .9; --ok: #3cc477; --no: #ef6a55; color-scheme: dark;
}

* { box-sizing: border-box; }
body {
  margin: 0; background: var(--paper); color: var(--ink);
  font: 400 16.5px/1.55 "DM Sans", system-ui, sans-serif;
}
.sr { position: absolute; width: 1px; height: 1px; overflow: hidden; clip: rect(0 0 0 0); }
a { color: inherit; text-underline-offset: 3px; }

.top { display: flex; align-items: center; gap: 12px; max-width: 760px; margin: 0 auto; padding: 16px; }
.brand { font: 800 26px/1 "Bricolage Grotesque", sans-serif; text-decoration: none; letter-spacing: -0.02em; }
.brand span { color: var(--a); }
.pick { margin-left: auto; }
.pick select { font: inherit; font-size: 14px; padding: 8px 10px; border-radius: 10px; border: 1px solid var(--line); background: var(--card); color: var(--ink); max-width: 58vw; }

.wrap { max-width: 760px; margin: 0 auto; padding: 0 16px 40px; }
.intro { padding: 18px 0 6px; }
.no { font: 600 12px/1 "DM Sans", sans-serif; letter-spacing: .14em; text-transform: uppercase; color: var(--ink-3); }
h1 { font: 800 clamp(34px, 8vw, 54px)/1 "Bricolage Grotesque", sans-serif; letter-spacing: -0.03em; margin: 8px 0 8px; }
.teaser { margin: 0; font-size: 18px; color: var(--ink-2); max-width: 34em; }

.rules { list-style: none; padding: 0; margin: 18px 0 6px; display: grid; gap: 8px; }
@media (min-width: 700px) { .rules { grid-template-columns: repeat(3, 1fr); } }
.rules li { display: grid; grid-template-columns: 30px 1fr; gap: 10px; align-items: start; background: var(--card); border: 1px solid var(--line); border-radius: 14px; padding: 10px 12px; }
.rules b { width: 30px; height: 30px; border-radius: 50%; display: grid; place-items: center; font: 800 15px/1 "Bricolage Grotesque", sans-serif; color: #1b1a17; }
.rules [data-set="A"] b { background: var(--a); }
.rules [data-set="B"] b { background: var(--b); }
.rules [data-set="C"] b { background: var(--c); }
.rules strong { display: block; font-size: 15.5px; line-height: 1.3; }
.rules em { display: block; font-style: normal; font-size: 13px; color: var(--ink-3); line-height: 1.35; margin-top: 2px; }

.board { margin-top: 6px; }
#venn { width: 100%; max-width: 540px; margin: 0 auto; height: auto; display: block; touch-action: manipulation; }
#venn .c { opacity: var(--fill-op); mix-blend-mode: var(--blend); transition: opacity .2s; }
#venn .cA { fill: var(--a); } #venn .cB { fill: var(--b); } #venn .cC { fill: var(--c); }
#venn .circles { isolation: isolate; }
#venn .outlines circle { fill: none; stroke: var(--ink); stroke-width: 2; opacity: .3; }
body.picking #venn { cursor: copy; }
body.picking #venn .outlines circle { opacity: .7; stroke-dasharray: 6 6; animation: march 1s linear infinite; }
@keyframes march { to { stroke-dashoffset: -12; } }
#venn .badge circle { fill: var(--ink); }
#venn .badge text { fill: var(--paper); font: 800 17px "Bricolage Grotesque", sans-serif; text-anchor: middle; }
#venn .pill { cursor: pointer; }
#venn .pill rect { fill: var(--card); stroke: var(--ink); stroke-width: 1.5; }
#venn .pill text { fill: var(--ink); font-family: "DM Sans", sans-serif; font-weight: 600; text-anchor: middle; }
#venn .pill.good rect { fill: var(--ok); stroke: var(--ok); } #venn .pill.good text { fill: #fff; }
#venn .pill.bad rect { fill: var(--no); stroke: var(--no); } #venn .pill.bad text { fill: #fff; }
#venn .pill:focus-visible rect { stroke-width: 3; }

.none-zone {
  width: 100%; margin-top: 6px; display: flex; flex-wrap: wrap; align-items: center; gap: 8px;
  border: 2px dashed var(--line); border-radius: 14px; background: transparent; padding: 10px 12px;
  font: inherit; color: var(--ink-2); cursor: pointer; text-align: left; min-height: 48px;
}
body.picking .none-zone { border-color: var(--ink-3); }
.nz-label { font-size: 13px; font-weight: 600; text-transform: uppercase; letter-spacing: .08em; color: var(--ink-3); }
.nz-items { display: contents; }

.howto { font-size: 14px; color: var(--ink-3); margin: 14px 0 8px; }
.tray { display: flex; flex-wrap: wrap; gap: 8px; min-height: 44px; }
.chip {
  font: 600 15px/1 "DM Sans", sans-serif; color: var(--ink); background: var(--card);
  border: 1.5px solid var(--ink); border-radius: 999px; padding: 10px 15px; cursor: pointer;
  transition: transform .15s, box-shadow .15s, background .15s;
  box-shadow: 0 2px 0 var(--ink);
}
.chip:hover { transform: translateY(-1px); }
.chip.sel { background: var(--ink); color: var(--paper); transform: translateY(-3px); box-shadow: 0 5px 0 var(--a); }
.chip.in { padding: 7px 12px; font-size: 14px; box-shadow: none; }
.chip.good { background: var(--ok); border-color: var(--ok); color: #fff; }
.chip.bad { background: var(--no); border-color: var(--no); color: #fff; }
.done { font-size: 14px; color: var(--ink-2); align-self: center; }

.actions { display: flex; gap: 10px; margin-top: 18px; flex-wrap: wrap; }
.btn { font: 700 16px/1 "DM Sans", sans-serif; border: 0; border-radius: 999px; padding: 14px 20px; background: var(--ink); color: var(--paper); cursor: pointer; }
.btn:disabled { opacity: .35; cursor: not-allowed; }
.btn.ghost { background: transparent; color: var(--ink); border: 1.5px solid var(--line); }

.reveal { margin-top: 28px; scroll-margin-top: 12px; }
.score { display: flex; align-items: baseline; gap: 10px; }
.score b { font: 800 72px/1 "Bricolage Grotesque", sans-serif; letter-spacing: -0.04em; }
.score span { font-size: 20px; color: var(--ink-2); }
.verdict { margin: 4px 0 16px; font-size: 18px; }
.facts { list-style: none; padding: 0; margin: 0; display: grid; gap: 10px; }
.facts li { background: var(--card); border: 1px solid var(--line); border-left: 5px solid var(--ok); border-radius: 12px; padding: 12px 14px; animation: up .4s both; }
.facts li.bad { border-left-color: var(--no); }
.facts li:nth-child(n) { animation-delay: calc(var(--n, 0) * 40ms); }
@keyframes up { from { opacity: 0; transform: translateY(6px); } }
.f-head { display: flex; flex-wrap: wrap; align-items: baseline; gap: 4px 10px; }
.f-head strong { font: 700 19px/1.2 "Bricolage Grotesque", sans-serif; }
.f-where { font-size: 13px; color: var(--ink-3); }
.f-miss { font-size: 13.5px; color: var(--no); margin-top: 2px; }
.facts p { margin: 6px 0 4px; }
.facts a { font-size: 13px; color: var(--ink-3); }

.foot { max-width: 760px; margin: 0 auto; padding: 24px 16px 48px; font-size: 13px; color: var(--ink-3); border-top: 1px solid var(--line); }
@media (prefers-reduced-motion: reduce) { * { animation: none !important; transition: none !important; } }