/* One Black Cell - a quilting table: linen weave, calico ground, indigo patches, madder binding, mustard thread. */
:root {
  --bg: #f5f0e6; --panel: #fffdf8; --ink: #22283a; --soft: #5d6273; --line: #ddd4c2; --chip: #f0e8d8; --weave: rgba(120, 95, 60, .05);
  --acc: #a63a2b; --acc-ink: #ffffff; --focus: #2c63c9; --field: #fffcf5; --thread: #b98a1f;
  --q-ground: #f3ead8; --q-patch: #26335e; --q-seam: rgba(80, 60, 30, .32); --q-bind: #a63a2b; --q-stitch: #f6e7c4; --q-seed: rgba(185, 138, 31, .22);
  --flag-bg: #f9dfd9; --flag-ink: #7d2216; --ok-bg: #dcefe2; --ok-ink: #1c5532; --info-bg: #e3eaf8; --info-ink: #22417a; --warn-bg: #f8edc8; --warn-ink: #634505;
  --shadow: 0 1px 0 rgba(60, 40, 20, .05), 0 6px 18px rgba(60, 40, 20, .08);
  color-scheme: light;
}
:root[data-theme="dark"] {
  --bg: #14151c; --panel: #1d1f2a; --ink: #eeece6; --soft: #b0afba; --line: #343646; --chip: #282a37; --weave: rgba(220, 200, 160, .035);
  --acc: #ff9a84; --acc-ink: #2b0a04; --focus: #86aaff; --field: #181a23; --thread: #e2b85a;
  --q-ground: #e6dcc6; --q-patch: #26335e; --q-seam: rgba(80, 60, 30, .38); --q-bind: #8f3326; --q-stitch: #f3dfb2; --q-seed: rgba(185, 138, 31, .28);
  --flag-bg: #4b1d17; --flag-ink: #ffc9bd; --ok-bg: #173826; --ok-ink: #b4e8c6; --info-bg: #1f2b47; --info-ink: #c9d8ff; --warn-bg: #3e3110; --warn-ink: #ffe2a0;
  --shadow: 0 1px 0 rgba(0, 0, 0, .3), 0 6px 18px rgba(0, 0, 0, .35);
  color-scheme: dark;
}
* { box-sizing: border-box; }
html, body { margin: 0; }
body { background-color: var(--bg); background-image: repeating-linear-gradient(0deg, var(--weave) 0 1px, transparent 1px 4px), repeating-linear-gradient(90deg, var(--weave) 0 1px, transparent 1px 4px); color: var(--ink); font: 16px/1.55 -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif; overflow-x: hidden; }
a { color: var(--acc); }
h1, h2, h3, h4, .ql-title { font-family: "Iowan Old Style", "Palatino Linotype", Palatino, Georgia, serif; }
.hidden { display: none !important; }
.small { font-size: .88rem; }
.muted { color: var(--soft); }
.mono { font-family: ui-monospace, SFMono-Regular, Menlo, monospace; overflow-wrap: anywhere; }
.none { color: var(--soft); font-style: italic; }
.sr { position: absolute; width: 1px; height: 1px; overflow: hidden; clip: rect(0 0 0 0); white-space: nowrap; }

/* Header */
.bar { position: sticky; top: 0; z-index: 10; display: flex; align-items: center; gap: 12px; padding: 10px 18px; background: var(--panel); border-bottom: 1px solid var(--line); }
.back { text-decoration: none; color: var(--soft); font-size: .92rem; white-space: nowrap; }
.brand { display: flex; align-items: center; gap: 8px; flex: 1; min-width: 0; }
.brand strong { font-family: "Iowan Old Style", Palatino, Georgia, serif; font-size: 1.1rem; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.logo { width: 34px; height: 21px; flex: none; }
.lg-bg { fill: var(--q-ground); stroke: var(--q-bind); stroke-width: 1.2; }
.lg-c rect { fill: var(--q-patch); }
.session { display: flex; gap: 6px; align-items: center; flex-wrap: wrap; justify-content: flex-end; }

/* Controls */
.pill { display: inline-flex; align-items: center; gap: 4px; padding: 6px 13px; border-radius: 999px; border: 1px solid var(--line); background: var(--panel); color: var(--ink); font: inherit; font-size: .88rem; cursor: pointer; text-decoration: none; white-space: nowrap; }
.pill:hover { border-color: var(--acc); }
.pill.solid { background: var(--acc); border-color: var(--acc); color: var(--acc-ink); font-weight: 600; }
.pill.solid:hover { filter: brightness(1.06); }
.pill.ghost { background: transparent; cursor: default; }
.pill.tiny { padding: 3px 10px; font-size: .8rem; }
.pill.big { padding: 10px 20px; font-size: 1rem; }
.pill:disabled { opacity: .5; cursor: not-allowed; }
.chip { padding: 5px 12px; border-radius: 4px; border: 1px dashed var(--thread); background: var(--chip); color: var(--ink); font: inherit; font-size: .86rem; cursor: pointer; }
.chip.on { border-style: solid; border-color: var(--acc); box-shadow: inset 0 0 0 1px var(--acc); }
textarea, select, input[type="text"], input[type="number"] { width: 100%; font: inherit; color: var(--ink); background: var(--field); border: 1px solid var(--line); border-radius: 8px; padding: 9px 11px; }
textarea { resize: vertical; min-height: 64px; line-height: 1.6; }
textarea:focus, select:focus, input:focus, .pill:focus-visible, .chip:focus-visible, .law:focus-visible { outline: 2px solid var(--focus); outline-offset: 1px; }
.seg { display: inline-flex; flex-wrap: wrap; gap: 0; border: 1px solid var(--line); border-radius: 999px; overflow: hidden; margin: 0 0 10px; }
.segb { display: inline-flex; align-items: center; gap: 4px; padding: 6px 12px; cursor: pointer; font-size: .88rem; }
.segb input { margin: 0; accent-color: var(--acc); }
.segb + .segb { border-left: 1px solid var(--line); }

/* Layout */
main { max-width: 1060px; margin: 0 auto; padding: 18px 18px 40px; }
.hero { padding: 14px 4px 6px; }
.kicker { margin: 0 0 10px; font-size: .9rem; color: var(--soft); border-left: 3px dashed var(--thread); padding-left: 10px; }
h1 { margin: 0 0 8px; font-size: 2.4rem; line-height: 1.1; }
.h1b { display: block; font-size: 1.15rem; color: var(--acc); margin-top: 4px; font-weight: 600; }
.lede { max-width: 780px; margin: 0 0 12px; }
.samples { display: flex; flex-wrap: wrap; gap: 6px; align-items: center; }
.panel { background: var(--panel); border: 1px solid var(--line); border-radius: 12px; padding: 16px 18px; margin: 14px 0; box-shadow: var(--shadow); min-width: 0; }
.ph { margin: 0 0 10px; font-size: 1.3rem; display: flex; align-items: center; gap: 8px; flex-wrap: wrap; }
.step-no { display: inline-grid; place-items: center; width: 26px; height: 26px; background: var(--q-patch); color: #fff; font: 700 .85rem/1 -apple-system, sans-serif; outline: 2px dashed var(--thread); outline-offset: -5px; }
.free { font: 600 .7rem/1 -apple-system, sans-serif; letter-spacing: .06em; text-transform: uppercase; color: var(--ok-ink); background: var(--ok-bg); padding: 4px 7px; border-radius: 6px; }
.lbl { display: block; font-weight: 600; font-size: .92rem; margin: 10px 0 5px; }
.lbl .muted { font-weight: 400; }
.pickrow { display: grid; grid-template-columns: 1fr 1fr; gap: 10px; margin-bottom: 8px; }
.pick { display: block; min-width: 0; }
.pick-l { display: block; font-size: .85rem; font-weight: 600; margin-bottom: 4px; }
.nudge { display: flex; gap: 6px; flex-wrap: wrap; }
.note { background: var(--chip); border-radius: 8px; padding: 7px 10px; margin: 8px 0 0; }

/* The laws */
.laws { display: grid; grid-template-columns: repeat(8, minmax(0, 1fr)); gap: 6px; margin: 10px 0 6px; }
.law { display: grid; justify-items: center; gap: 2px; padding: 6px 2px 4px; border: 1px solid var(--line); border-radius: 6px; background: var(--q-ground); cursor: pointer; font: inherit; color: #22283a; min-width: 0; }
.law:hover { border-color: var(--acc); }
.law.pick { box-shadow: 0 0 0 2px var(--thread); border-color: var(--thread); }
.law-svg { width: 100%; max-width: 54px; height: auto; display: block; }
.lc { stroke: rgba(80, 60, 30, .45); stroke-width: .8; }
.lc-b { fill: var(--q-patch); } .lc-w { fill: #fffaf0; }
.lc-pick { stroke: var(--thread); stroke-width: 2.4; }
.law-cap { font: 600 .7rem/1 ui-monospace, Menlo, monospace; letter-spacing: .04em; }

/* The quilt */
.quilt-head { display: flex; justify-content: space-between; align-items: center; gap: 10px; flex-wrap: wrap; }
.estimate { margin: 0 0 10px; }
.est-tag { display: inline-block; padding: 2px 9px; border-radius: 4px; background: var(--q-patch); color: #fff; font-size: .86rem; letter-spacing: .03em; }
.est-tag.c-fades { background: #6b6f7d; } .est-tag.c-repeats { background: #2f6b55; } .est-tag.c-nests { background: #6a3d8f; } .est-tag.c-churns { background: #a63a2b; } .est-tag.c-edge { background: #8a6410; }
.quilt { margin: 4px 0 12px; }
.quilt-svg { width: 100%; height: auto; display: block; filter: drop-shadow(0 4px 8px rgba(40, 25, 10, .18)); }
.q-bind { fill: var(--q-bind); }
.q-ground { fill: var(--q-ground); }
.q-patch { fill: var(--q-patch); }
.q-seam { fill: none; stroke: var(--q-seam); stroke-width: .5; stroke-dasharray: 1.6 1.4; }
.q-stitch { fill: none; stroke: var(--q-stitch); stroke-width: 1.4; stroke-linecap: round; }
.q-seedrow { fill: var(--q-seed); }
.facts { display: grid; grid-template-columns: max-content 1fr; gap: 4px 14px; margin: 6px 0 14px; font-size: .9rem; }
.facts dt { font-weight: 700; color: var(--soft); }
.facts dd { margin: 0; overflow-wrap: anywhere; min-width: 0; }
.flipwrap { overflow-x: auto; }
.flips { width: 100%; border-collapse: collapse; font-size: .9rem; }
.flips th, .flips td { text-align: left; padding: 5px 8px; border-bottom: 1px dashed var(--line); white-space: nowrap; }
.flips td.lawc { font-family: ui-monospace, Menlo, monospace; font-weight: 700; }
.flips tr.hit td { background: var(--warn-bg); color: var(--warn-ink); }
.dot { display: inline-block; width: 9px; height: 9px; margin-right: 6px; vertical-align: middle; }
.dot.c-fades { background: #6b6f7d; } .dot.c-repeats { background: #2f6b55; } .dot.c-nests { background: #6a3d8f; } .dot.c-churns { background: #a63a2b; } .dot.c-edge { background: #8a6410; }
.exports { display: flex; flex-wrap: wrap; gap: 6px; margin-top: 12px; }

/* Ask + progress */
.runrow { display: flex; align-items: center; gap: 12px; flex-wrap: wrap; margin-top: 10px; }
.gate { background: var(--flag-bg); color: var(--flag-ink); border-radius: 10px; padding: 8px 12px; margin: 10px 0 0; }
.gate .pill { margin-left: 4px; }
.steps { list-style: none; padding: 0; margin: 8px 0; display: grid; gap: 4px; }
.step { color: var(--soft); }
.step.active { color: var(--ink); font-weight: 600; }
.step.done { color: var(--ok-ink); }
.step-ic { display: inline-block; width: 1.2em; font-family: ui-monospace, monospace; }
.raw { white-space: pre-wrap; overflow-wrap: anywhere; background: var(--field); border-radius: 8px; padding: 10px; font-size: .82rem; max-height: 340px; overflow: auto; }

/* The reading: a sewn-in quilt label */
.res-kick { text-transform: uppercase; letter-spacing: .12em; color: var(--soft); margin: 0 0 8px; font-weight: 700; }
.label-wrap { display: grid; grid-template-columns: minmax(0, 1fr) 260px; gap: 18px; align-items: start; }
.qlabel { position: relative; background: #fbf4e2; color: #2a2418; padding: 18px 20px 16px; border-radius: 3px; outline: 2px dashed #b98a1f; outline-offset: -9px; box-shadow: 0 0 0 6px #fbf4e2, 0 0 0 7px #d9c9a3, 0 8px 18px rgba(40, 25, 10, .16); transform: rotate(-.6deg); margin: 8px; }
.qlabel h4 { margin: 14px 0 6px; font-size: 1rem; color: #7a2b1f; }
.ql-kick { margin: 0; text-transform: uppercase; letter-spacing: .14em; color: #6b5a3a; font-weight: 700; }
.ql-title { margin: 4px 0 10px; font-size: 1.55rem; font-style: italic; line-height: 1.2; overflow-wrap: anywhere; }
.ql-phil { font-family: "Iowan Old Style", Palatino, Georgia, serif; font-size: 1.04rem; line-height: 1.6; margin: 10px 0 0; overflow-wrap: anywhere; }
.qlabel .muted { color: #5e5442; }
.qlabel .note { background: #f1e3bf; color: #4d3a0c; }
.verdict-row { display: flex; gap: 12px; align-items: center; flex-wrap: wrap; }
.verdict-row p { margin: 0; flex: 1 1 220px; min-width: 0; }
.badge { display: inline-block; padding: 5px 11px; border-radius: 3px; font: 800 .78rem/1.2 -apple-system, sans-serif; letter-spacing: .06em; background: #e6dcc6; color: #2a2418; border: 1px solid #b9a77f; white-space: nowrap; }
.badge.v-already { background: #cfe7d8; color: #11402a; border-color: #7fb596; }
.badge.v-one_flip { background: #f6e1a6; color: #4f3604; border-color: #c9a24a; }
.badge.v-no_flip { background: #f2cfc7; color: #6a1b10; border-color: #c98b7f; }
.look { margin: 0; padding-left: 20px; display: grid; gap: 5px; }
.look li { overflow-wrap: anywhere; }
.look li.none { list-style: none; margin-left: -20px; }
.look .fk { display: inline-block; font: 700 .7rem/1.4 -apple-system, sans-serif; letter-spacing: .05em; text-transform: uppercase; color: #6b5a3a; margin-right: 6px; }
.flipcard { border: 1px solid var(--line); border-radius: 10px; padding: 12px; background: var(--field); }
.flipcard h4 { margin: 0 0 6px; }
.swatch { margin: 8px 0; }
.result h4 { font-size: 1.05rem; }
.recon { list-style: none; padding: 0; margin: 0; display: grid; gap: 6px; }
.recon li { padding: 7px 10px; border-radius: 8px; background: var(--chip); font-size: .9rem; }
.recon li.warn { background: var(--warn-bg); color: var(--warn-ink); }
.recon li.none { font-style: normal; color: var(--ok-ink); background: var(--ok-bg); }

/* Saved universes */
.cardrow { display: flex; flex-wrap: wrap; gap: 6px; margin: 10px 0 8px; }
.saved { list-style: none; padding: 0; margin: 8px 0 0; display: grid; gap: 6px; }
.hrow { display: flex; align-items: center; gap: 10px; padding: 8px 10px; border: 1px solid var(--line); border-radius: 10px; }
.hrow.none { border-style: dashed; }
.hdot { width: 14px; height: 14px; background: var(--q-patch); outline: 1px dashed var(--thread); outline-offset: 2px; flex: none; }
.hdot.v-already { background: #2f6b55; } .hdot.v-one_flip { background: #b98a1f; } .hdot.v-no_flip { background: #a63a2b; }
.hinfo { flex: 1; display: grid; min-width: 0; }
.hinfo b { overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.hbtns { display: flex; gap: 4px; }

/* Footer + toasts */
.foot { max-width: 1060px; margin: 0 auto; padding: 0 18px 40px; color: var(--soft); font-size: .86rem; }
.toasts { position: fixed; right: 14px; bottom: 14px; display: grid; gap: 8px; z-index: 30; max-width: min(380px, calc(100vw - 28px)); }
.toast { padding: 10px 14px; border-radius: 10px; background: var(--ink); color: var(--bg); box-shadow: var(--shadow); font-size: .9rem; transition: opacity .5s; }
.toast.err { background: var(--flag-bg); color: var(--flag-ink); border: 1px solid var(--acc); }
.toast a { color: inherit; font-weight: 700; }
.toast.gone { opacity: 0; }

@media (max-width: 760px) {
  .label-wrap { grid-template-columns: 1fr; }
  .laws { grid-template-columns: repeat(4, minmax(0, 1fr)); }
}
@media (max-width: 480px) {
  .bar { padding: 8px 12px; gap: 8px; }
  .back-t { display: none; }
  .brand strong { font-size: .98rem; }
  main { padding: 12px 12px 30px; }
  .foot { padding: 0 12px 30px; }
  h1 { font-size: 1.95rem; }
  .h1b { font-size: 1.02rem; }
  .pickrow { grid-template-columns: 1fr; }
  .panel { padding: 14px 13px; }
  .facts { grid-template-columns: 1fr; gap: 0 0; }
  .facts dd { margin-bottom: 6px; }
  .qlabel { padding: 16px 14px 14px; }
  .flips th, .flips td { padding: 5px 5px; }
}