:root {
  --paper: #fafaf7;
  --field: #ffffff;
  --ink: #111111;
  --ink-soft: #4d4d48;
  --muted: #8a8a82;
  --rule: #e2e1db;
  --accent: #c8102e;
  --ok: #1f7a4d;
  --word: #e6edf6;
  --cursor: #ffd966;
  --sans: "IBM Plex Sans", "Helvetica Neue", Helvetica, Arial, system-ui, sans-serif;
  --mono: "IBM Plex Mono", ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
  --radius: 10px;
  color-scheme: light;
}

* { box-sizing: border-box; }
[hidden] { display: none !important; }

html, body {
  margin: 0;
  background: var(--paper);
  color: var(--ink);
  font-family: var(--sans);
  -webkit-font-smoothing: antialiased;
  -webkit-text-size-adjust: 100%;
}
body { min-height: 100svh; display: flex; flex-direction: column; }
code { font-family: var(--mono); font-size: .92em; }
.center { text-align: center; justify-content: center; }

/* ---------------------------------------------------------------- layout */

.page { flex: 1; width: 100%; max-width: 560px; margin: 0 auto; padding: 56px 20px 48px; }
.page-wide { max-width: 1000px; }

.masthead {
  position: relative;
  left: 50%;
  width: min(920px, calc(100vw - 40px));
  transform: translateX(-50%);
  text-align: center;
}
.masthead-compact .site-title { margin: 10px 0 8px; }
.eyebrow {
  margin: 0;
  font: 500 11px/1.4 var(--mono);
  letter-spacing: .14em;
  text-transform: uppercase;
  color: var(--muted);
}
.site-title {
  margin: 16px 0 12px;
  color: #000;
  font-weight: 600;
  font-size: clamp(30px, 8.4vw, 54px);
  line-height: 1.05;
  letter-spacing: -0.025em;
  text-align: center;
  text-wrap: balance;
}
.site-title-sm { font-size: clamp(22px, 5.5vw, 30px); }
.lede { margin: 0 auto; max-width: 40ch; color: var(--ink-soft); font-size: 15px; line-height: 1.5; }

.footer {
  padding: 18px 20px calc(18px + env(safe-area-inset-bottom));
  text-align: center;
  font: 500 10.5px/1.4 var(--mono);
  letter-spacing: .1em;
  text-transform: uppercase;
  color: var(--muted);
}

/* ---------------------------------------------------------------- form bits */

.panel { margin-top: 40px; border-top: 1.5px solid var(--ink); }
.step { padding: 22px 0; border-bottom: 1px solid var(--rule); }
.step-last { border-bottom: 0; }
.step-label {
  display: flex;
  justify-content: space-between;
  gap: 12px;
  margin-bottom: 12px;
  font: 500 11px/1.4 var(--mono);
  letter-spacing: .12em;
  text-transform: uppercase;
  color: var(--muted);
}
.step-label b { color: var(--ink); font-weight: 500; }

.text {
  width: 100%;
  padding: 14px;
  font: 400 17px/1.3 var(--sans);
  color: var(--ink);
  background: var(--field);
  border: 1px solid var(--rule);
  border-radius: var(--radius);
  outline: none;
  transition: border-color .15s, box-shadow .15s;
}
.text:focus { border-color: var(--ink); box-shadow: 0 0 0 3px rgba(0, 0, 0, .07); }
.text::placeholder { color: #b3b2ab; }

.btn {
  appearance: none;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  text-decoration: none;   /* .btn is used on <a> as well as <button> */
  padding: 12px 20px;
  font: 500 15px/1.2 var(--sans);
  color: #fff;
  background: var(--ink);
  border: 1.5px solid var(--ink);
  border-radius: 999px;
  cursor: pointer;
  transition: transform .12s, background .15s, color .15s, opacity .15s;
}
.btn:hover:not(:disabled) { transform: translateY(-1px); }
.btn:active:not(:disabled) { transform: translateY(0); }
.btn:disabled { opacity: .3; cursor: not-allowed; }
.btn.ghost { color: var(--ink); background: transparent; }
.btn.ghost:hover:not(:disabled) { background: #fff; }
.btn.small { padding: 8px 14px; font-size: 13px; }
.btn.wide { width: 100%; padding: 15px 20px; font-size: 16px; }
.btn:focus-visible, .linkish:focus-within { outline: 2px solid var(--accent); outline-offset: 3px; }

.btn-row { display: flex; flex-wrap: wrap; align-items: center; gap: 10px 14px; margin-top: 14px; }

.linkish {
  padding: 0;
  font: 400 13px/1.4 var(--sans);
  color: var(--ink-soft);
  background: none;
  border: 0;
  text-decoration: underline;
  text-underline-offset: 3px;
  cursor: pointer;
}

.status { min-height: 1.4em; margin: 14px 0 0; font: 400 13px/1.45 var(--mono); color: var(--ink-soft); }
.status.error { color: var(--accent); }
.status.ok { color: var(--ok); }

/* ---------------------------------------------------------------- camera viewport */

.viewport {
  position: relative;
  aspect-ratio: 4 / 3;
  overflow: hidden;
  background: #101010;
  border-radius: var(--radius);
}
.viewport video, .viewport img {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: cover;
  transform: scaleX(-1);
}
.viewport img.unmirrored { transform: none; }

.viewport-hint {
  position: absolute;
  inset: 0;
  display: grid;
  place-items: center;
  text-align: center;
  font: 400 12px/1.6 var(--mono);
  letter-spacing: .06em;
  color: rgba(255, 255, 255, .55);
}

.bracket { position: absolute; width: 22px; height: 22px; border: 0 solid rgba(255, 255, 255, .8); }
.bracket.tl { top: 14px; left: 14px; border-top-width: 2px; border-left-width: 2px; }
.bracket.tr { top: 14px; right: 14px; border-top-width: 2px; border-right-width: 2px; }
.bracket.bl { bottom: 14px; left: 14px; border-bottom-width: 2px; border-left-width: 2px; }
.bracket.br { bottom: 14px; right: 14px; border-bottom-width: 2px; border-right-width: 2px; }

.live-tag {
  position: absolute;
  top: 16px;
  left: 46px;
  display: none;
  align-items: center;
  gap: 6px;
  font: 500 10px/1 var(--mono);
  letter-spacing: .14em;
  text-transform: uppercase;
  color: #fff;
}
.live-tag i { width: 7px; height: 7px; border-radius: 50%; background: var(--accent); animation: blink 1.2s infinite; }
.viewport[data-mode="live"] .live-tag { display: inline-flex; }

.scanline {
  position: absolute;
  left: 0;
  right: 0;
  top: -30%;
  height: 30%;
  display: none;
  background: linear-gradient(to bottom, transparent, rgba(200, 16, 46, .0) 40%, rgba(200, 16, 46, .45) 96%, #ff4d6a 100%);
  pointer-events: none;
}
.viewport.scanning .scanline { display: block; animation: scan 1.1s cubic-bezier(.45, 0, .55, 1) infinite; }

@keyframes scan { to { top: 100%; } }
@keyframes blink { 50% { opacity: .2; } }

.camera-picker {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-top: 12px;
  font: 500 11px/1.4 var(--mono);
  letter-spacing: .12em;
  text-transform: uppercase;
  color: var(--muted);
}
.select {
  flex: 1;
  min-width: 0;
  padding: 9px 12px;
  font: 400 14px/1.3 var(--sans);
  text-transform: none;
  letter-spacing: 0;
  color: var(--ink);
  background: var(--field);
  border: 1px solid var(--rule);
  border-radius: 8px;
  cursor: pointer;
}
.select:focus { border-color: var(--ink); outline: none; }

/* ---------------------------------------------------------------- admin mode */

.admin-bar {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px 16px;
  padding: 9px 16px;
  background: var(--ink);
  color: #fff;
  font: 400 12px/1.4 var(--mono);
}
.admin-bar a { color: rgba(255, 255, 255, .75); text-decoration: none; }
.admin-bar a:hover { color: #fff; text-decoration: underline; text-underline-offset: 3px; }
.admin-bar .admin-exit { margin-left: auto; color: #ff9aac; }
.admin-tag {
  padding: 3px 8px;
  border-radius: 999px;
  background: var(--accent);
  color: #fff;
  font-size: 10px;
  letter-spacing: .12em;
  text-transform: uppercase;
}
.admin-hint { margin: 10px 0 0; font: 400 12.5px/1.5 var(--mono); color: var(--accent); }
.admin-hint b { font-weight: 500; letter-spacing: .06em; }

.detector-layout { display: grid; gap: 28px; margin-top: 28px; }
@media (min-width: 860px) { .detector-layout { grid-template-columns: 1fr 1fr; align-items: start; } }
.detector-result { display: grid; gap: 14px; }
.annotated { width: 100%; border-radius: var(--radius); background: #101010; }
.numbers { margin: 0; display: grid; gap: 1px; background: var(--rule); border: 1px solid var(--rule); border-radius: 8px; overflow: hidden; }
.numbers > div { display: flex; justify-content: space-between; gap: 12px; padding: 9px 12px; background: var(--field); }
.numbers dt { font: 500 11px/1.6 var(--mono); letter-spacing: .1em; text-transform: uppercase; color: var(--muted); }
.numbers dd { margin: 0; font: 500 14px/1.3 var(--mono); }
.lede.small { font-size: 13px; }

/* ---------------------------------------------------------------- crossword */

.clue-bar {
  position: sticky;
  top: 0;
  z-index: 5;
  display: flex;
  align-items: baseline;
  gap: 12px;
  margin: 28px -20px 0;
  padding: 12px 20px;
  background: rgba(250, 250, 247, .94);
  backdrop-filter: blur(6px);
  border-top: 1.5px solid var(--ink);
  border-bottom: 1px solid var(--rule);
}
.clue-bar-num { flex: none; font: 500 13px/1.4 var(--mono); color: var(--accent); }
.clue-bar-text { flex: 1; font-size: 15px; line-height: 1.4; }
.timer {
  flex: none;
  font: 500 14px/1.4 var(--mono);
  font-variant-numeric: tabular-nums;
  color: var(--muted);
  transition: color .2s;
}
.timer.running { color: var(--ink); }
.timer.stopped { color: var(--ok); }

.finished {
  max-width: 420px;
  margin: 44px auto 0;
  padding: 26px 24px;
  text-align: center;
  background: var(--field);
  border: 1.5px solid var(--ink);
  border-radius: 14px;
}
.finished-time {
  margin: 8px 0 6px;
  font: 600 46px/1 var(--mono);
  font-variant-numeric: tabular-nums;
  letter-spacing: -0.02em;
}
.finished .lede { margin-bottom: 18px; }
.board-link { margin: 28px 0 0; text-align: center; }
.board-empty { margin-top: 36px; }
.board-heading { margin-top: 40px; }
.responses.board td.rank { width: 3em; font-family: var(--mono); color: var(--muted); }
.responses.board td.time { font-family: var(--mono); font-variant-numeric: tabular-nums; text-align: right; }
.responses.board th:last-child { text-align: right; }
.responses.board tr.you { background: var(--word); }
.responses.board tr.you td { font-weight: 500; }

.xw-layout { display: grid; gap: 28px; margin-top: 24px; }
@media (min-width: 860px) {
  .xw-layout { grid-template-columns: auto minmax(0, 1fr); align-items: start; gap: 44px; }
  .clue-bar { margin-left: 0; margin-right: 0; }
}

.xw-grid {
  --cell: min(44px, calc((100vw - 40px) / var(--cols)));
  display: grid;
  grid-template-columns: repeat(var(--cols), var(--cell));
  grid-template-rows: repeat(var(--rows), var(--cell));
  width: max-content;
  margin: 0 auto;
  user-select: none;
}
.xw-cell {
  position: relative;
  background: #fff;
  border-right: 1.5px solid var(--ink);
  border-bottom: 1.5px solid var(--ink);
}
.xw-cell.edge-l { border-left: 1.5px solid var(--ink); }
.xw-cell.edge-t { border-top: 1.5px solid var(--ink); }
.xw-cell.in-word { background: var(--word); }
.xw-cell.active { background: var(--cursor); }

.xw-cell input {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  padding: 10% 0 0;
  font: 500 calc(var(--cell) * .5)/1 var(--sans);
  text-align: center;
  text-transform: uppercase;
  color: var(--ink);
  caret-color: transparent;
  background: transparent;
  border: 0;
  border-radius: 0;
  outline: none;
  cursor: pointer;
}
.xw-cell.wrong input { color: var(--accent); }
.xw-cell.wrong::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(to top right, transparent calc(50% - 1px), rgba(200, 16, 46, .5), transparent calc(50% + 1px));
  pointer-events: none;
}

.xw-num, .xw-cnum { position: absolute; font-family: var(--mono); line-height: 1; pointer-events: none; }
.xw-num {
  z-index: 1;
  top: 1px;
  left: 1px;
  padding: 1px 1px 0 1px;
  font-size: max(7px, calc(var(--cell) * .24));
  color: var(--ink-soft);
  background: inherit;   /* sits on top of the circle outline, matching any highlight */
}
.xw-cnum {
  right: 2px;
  bottom: 2px;
  font-size: max(7px, calc(var(--cell) * .22));
  font-weight: 500;
  color: var(--accent);
}
.xw-cell.circled::before {
  content: "";
  position: absolute;
  inset: 11%;
  border: 1.5px solid var(--accent);
  border-radius: 50%;
  pointer-events: none;
}

.xw-clues { display: grid; gap: 24px; }
@media (min-width: 560px) { .xw-clues { grid-template-columns: 1fr 1fr; } }
.clue-heading {
  margin: 0 0 8px;
  padding-bottom: 8px;
  font: 500 11px/1.4 var(--mono);
  letter-spacing: .14em;
  text-transform: uppercase;
  border-bottom: 1px solid var(--ink);
}
.clue-list { margin: 0; padding: 0; list-style: none; }
.clue-list li {
  display: flex;
  gap: 10px;
  padding: 7px 8px;
  margin: 0 -8px;
  font-size: 14.5px;
  line-height: 1.4;
  border-radius: 6px;
  cursor: pointer;
}
.clue-list li b { flex: none; min-width: 1.6em; font: 500 13px/1.55 var(--mono); }
.clue-list li .enum { color: var(--muted); white-space: nowrap; }
.clue-list li.active { background: var(--word); }
.clue-list li.cross { box-shadow: inset 3px 0 0 var(--word); }

.passphrase { max-width: 560px; margin: 48px auto 0; padding-top: 22px; border-top: 1.5px solid var(--ink); }
.passphrase-row { display: flex; gap: 10px; }
.passphrase-row .text { text-transform: uppercase; letter-spacing: .08em; }
.passphrase-row .text::placeholder { text-transform: none; letter-spacing: 0; }
.shake { animation: shake .35s; }
@keyframes shake { 20%, 60% { transform: translateX(-6px); } 40%, 80% { transform: translateX(6px); } }

/* ---------------------------------------------------------------- reveal + answers */

.reveal-stage {
  flex: 1;
  width: 100%;
  max-width: 960px;
  margin: 0 auto;
  padding: 48px 20px 56px;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 36px;
}

.anagram {
  position: relative;
  width: 100%;
  margin: 0;
  font-weight: 600;
  font-size: 48px;
  line-height: 1.3;
  letter-spacing: -0.025em;
  color: #000;
  text-align: center;
}
.anagram-static { display: block; white-space: pre; }
.anagram-measure, .anagram-probe { position: absolute; top: 0; left: 0; visibility: hidden; white-space: pre; }
.anagram-measure { right: 0; text-align: center; }
.anagram-glyph { position: absolute; top: 0; left: 0; white-space: pre; will-change: transform; }

[data-after-anagram] { opacity: 0; transform: translateY(12px); transition: opacity .7s ease, transform .7s ease; }
[data-after-anagram].shown, .transmission.shown { opacity: 1; transform: none; }
.reveal:not(.anagram-done) [data-after-anagram] { pointer-events: none; }

.transmission { display: grid; justify-items: center; gap: 12px; width: 100%; max-width: 720px; }
.video {
  display: block;
  width: 100%;
  max-height: 70svh;
  background: #000;
  border-radius: 14px;
}
.video-placeholder {
  display: grid;
  place-content: center;
  gap: 10px;
  aspect-ratio: 16 / 9;
  padding: 24px;
  text-align: center;
  color: rgba(255, 255, 255, .8);
  font-size: 14px;
  background:
    repeating-linear-gradient(135deg, #141414 0 14px, #1b1b1b 14px 28px);
}
.video-placeholder .eyebrow { color: rgba(255, 255, 255, .5); }

.choices { display: flex; flex-wrap: wrap; justify-content: center; gap: 12px; }
.choices .btn { min-width: 150px; padding: 14px 24px; font-size: 16px; }

/* The three answers, once the reveal has happened: red, faded rose, black. */
.btn-yes { background: var(--accent); border-color: var(--accent); color: #fff; }
.btn-yes:hover:not(:disabled) { background: #a80d26; border-color: #a80d26; }
.btn-maybe { background: #f7dee2; border-color: #eabec6; color: #9c1b2e; }
.btn-maybe:hover:not(:disabled) { background: #f2ccd3; border-color: #e0a9b3; }
.btn-no { background: var(--ink); border-color: var(--ink); color: #fff; }
.btn-no:hover:not(:disabled) { background: #000; border-color: #000; }
@media (max-width: 520px) {
  .choices { flex-direction: column; width: 100%; max-width: 320px; }
}

.answer { gap: 22px; }
.answer-heading { margin: 0; font-size: clamp(30px, 7vw, 48px); font-weight: 600; letter-spacing: -0.025em; text-align: center; }
.answer .lede { text-align: center; }
.back { margin-top: 8px; }

/* ---------------------------------------------------------------- admin */

.table-wrap { margin-top: 32px; overflow-x: auto; }
.responses { width: 100%; border-collapse: collapse; font-size: 14px; }
.responses th, .responses td { padding: 10px 8px; text-align: left; border-bottom: 1px solid var(--rule); }
.responses th { font: 500 11px/1.4 var(--mono); letter-spacing: .12em; text-transform: uppercase; color: var(--muted); border-bottom-color: var(--ink); }
.responses td:first-child { font-family: var(--mono); font-size: 12.5px; white-space: nowrap; }

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { animation-duration: .01ms !important; transition-duration: .01ms !important; }
}