@import url("https://fonts.googleapis.com/css2?family=Caveat:wght@500;700&family=Newsreader:ital,opsz,wght@0,6..72,400..800;1,6..72,400..600&family=UnifrakturMaguntia&display=swap");

/* The puzzle page of a newspaper: printed clues, your digits in ballpoint,
   notes in pencil, a highlighter for the selection and a rubber stamp for
   the win. Every other game in the hub is dark; this one is deliberately
   paper. */
:root {
  --desk: #26231f;
  --paper: #f3ecdc;
  --cell-bg: #fbf7ee;
  --ink: #1b1a17;
  --ink-soft: #4a463f;
  --muted: #6f695e;
  --thick: #1b1a17;   /* box borders */
  --thin: #b8b09f;    /* cell borders */
  --rule: #cfc6b3;
  --pen: #1f3fae;     /* your digits */
  --pencil: #6d675c;  /* notes */
  --peer: #efe8d8;
  --same: #fbe98a;    /* highlighter */
  --sel: #f8d94a;
  --red: #b8281d;     /* red pen, rubber stamp */
  --good: #2d6a3e;
  --info: #7a4e00;
  --serif: "Newsreader", Georgia, "Times New Roman", serif;
  --hand: "Caveat", "Segoe Print", "Bradley Hand", cursive;
  --size: 450px;      /* board edge; set by game.js to fit the screen */
}

* {
  box-sizing: border-box;
  -webkit-tap-highlight-color: transparent;
}

html,
body {
  margin: 0;
  background: var(--desk);
  color: var(--ink);
  font-family: var(--serif);
}
body {
  background:
    radial-gradient(1200px 800px at 50% 0%, #34302a 0%, var(--desk) 70%) fixed;
}

.wrap {
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  align-items: center;
  /* top room for the fixed back / FX / mute buttons */
  padding: 56px 16px 2.5rem;
}

/* ---- the sheet ------------------------------------------------------------ */
.sheet {
  width: 100%;
  max-width: 548px;   /* 500px board + side padding */
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.8rem;
  padding: 16px 24px 20px;
  background-color: var(--paper);
  /* newsprint grain */
  background-image:
    url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='180' height='180'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='.85' numOctaves='3' stitchTiles='stitch'/%3E%3CfeColorMatrix values='0 0 0 0 .35 0 0 0 0 .3 0 0 0 0 .22 0 0 0 .09 0'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)'/%3E%3C/svg%3E"),
    linear-gradient(180deg, rgba(255, 255, 255, 0.35), rgba(120, 95, 50, 0.06));
  box-shadow: 0 1px 0 rgba(0, 0, 0, 0.25), 0 22px 50px rgba(0, 0, 0, 0.5);
}

/* ---- masthead ------------------------------------------------------------- */
.mast {
  width: 100%;
  display: grid;
  grid-template-columns: 1fr auto 1fr;
  align-items: center;
  column-gap: 0.9rem;
}
.nameplate {
  margin: 0;
  font-family: "UnifrakturMaguntia", var(--serif);
  font-size: 2.55rem;
  font-weight: 400;
  line-height: 1.05;
  white-space: nowrap;
}
.ear {
  margin: 0;
  padding: 0.3rem 0.45rem;
  border: 1px solid var(--ink);
  font-size: 0.68rem;
  font-style: italic;
  line-height: 1.25;
  color: var(--ink-soft);
  text-align: center;
  max-width: 8.6rem;
}
.ear b {
  font-style: normal;
  color: var(--ink);
}
.ear-l { justify-self: start; }
.ear-r { justify-self: end; }
.ear-r b {
  display: block;
  font-size: 0.6rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}
.dateline {
  grid-column: 1 / -1;
  display: flex;
  justify-content: space-between;
  gap: 0.6rem;
  margin-top: 0.35rem;
  padding: 0.28rem 0 0.22rem;
  border-top: 3px double var(--ink);
  border-bottom: 1px solid var(--ink);
  font-size: 0.66rem;
  font-weight: 600;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  font-variant-numeric: lining-nums;
}

/* ---- field: HUD + board ------------------------------------------------ */
.field {
  display: flex;
  flex-direction: column;
  width: var(--size);
  max-width: 100%;
}

.hud {
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  gap: 0.75rem;
  padding: 0 0 0.35rem;
}
.hud-left {
  display: flex;
  align-items: baseline;
  flex-wrap: wrap;
  column-gap: 0.6rem;
  min-width: 0;
}
.title {
  margin: 0;
  font-size: 1.7rem;
  font-weight: 800;
  line-height: 1;
  letter-spacing: 0.01em;
  text-transform: uppercase;
}
.hud-level {
  font-style: italic;
  font-weight: 600;
  font-size: 0.98rem;
  color: var(--ink-soft);
}
.hud-level small {
  margin-left: 0.3rem;
  color: var(--muted);
  font-weight: 400;
  font-size: 0.82rem;
}
.hud-level small::before {
  content: "· ";
}
.hud-right {
  display: flex;
  align-items: center;
  gap: 0.45rem;
}
.clock {
  font-weight: 700;
  font-size: 1.25rem;
  font-variant-numeric: tabular-nums lining-nums;
  min-width: 4.2ch;
  text-align: right;
}
.icon-btn {
  cursor: pointer;
  width: 2rem;
  height: 2rem;
  border-radius: 50%;
  border: 1.5px solid var(--ink);
  background: transparent;
  color: var(--ink);
  font-size: 0.8rem;
  line-height: 1;
  touch-action: manipulation;
}
.icon-btn:hover {
  background: var(--ink);
  color: var(--paper);
}

.board-frame {
  position: relative;
}

/* 3×3 boxes, each 3×3 cells; the gaps ARE the grid lines */
.board {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 3px;
  padding: 3px;
  width: var(--size);
  max-width: 100%;
  aspect-ratio: 1;
  background: var(--thick);
  user-select: none;
  -webkit-user-select: none;
  -webkit-touch-callout: none;
  touch-action: manipulation;
}
.box {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  grid-template-rows: repeat(3, 1fr);
  gap: 1px;
  background: var(--thin);
  min-width: 0;
  min-height: 0;
}

.c {
  position: relative;
  display: flex;
  align-items: center;
  justify-content: center;
  min-width: 0;
  min-height: 0;
  background: var(--cell-bg);
  color: var(--pen);
  font-family: var(--hand);
  font-size: calc(var(--size) * 0.082);
  font-weight: 700;
  line-height: 1;
  cursor: pointer;
  transition: background-color 0.12s ease;
}
/* a hand never writes two digits at the same angle */
.box .c:not(.given):nth-child(3n + 1) .v { transform: rotate(-4deg); }
.box .c:not(.given):nth-child(3n + 2) .v { transform: rotate(2deg) translateY(1px); }
.box .c:not(.given):nth-child(4n) .v { transform: rotate(-1deg) translateX(1px); }
.c.given {
  color: var(--ink);
  font-family: var(--serif);
  font-size: calc(var(--size) * 0.064);
  font-weight: 600;
  font-variant-numeric: lining-nums;
}
.c.peer {
  background: var(--peer);
}
.c.same {
  background: var(--same);
}
.c.sel {
  background: var(--sel);
  box-shadow: inset 0 0 0 2px var(--ink);
}
.c.bad {
  color: var(--red);
}
.c.clash {
  background: #f5d6cf;
}
.c.sel.clash {
  background: #efbdb2;
}

/* red pen and blue pen rings, drawn over the cell */
.c::after {
  content: "";
  position: absolute;
  inset: 8%;
  border-radius: 50%;
  pointer-events: none;
  opacity: 0;
}
.c.oops::after {
  border: 2px solid var(--red);
  border-top-color: transparent;
  transform: rotate(-20deg);
  opacity: 1;
}
.c.hinted::after {
  border: 2px solid var(--pen);
  border-right-color: transparent;
  transform: rotate(25deg);
  animation: hinted 1.1s ease-out forwards;
}

/* pencil marks */
.notes {
  position: absolute;
  inset: 1px;
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  grid-template-rows: repeat(3, 1fr);
  align-items: center;
  justify-items: center;
  font-family: var(--hand);
  font-size: calc(var(--size) * 0.034);
  font-weight: 500;
  color: var(--pencil);
}
.notes .hl {
  color: var(--ink);
  background: var(--same);
  border-radius: 2px;
  padding: 0 0.2em;
  font-weight: 700;
}

@media (hover: hover) {
  .c:not(.sel):hover {
    box-shadow: inset 0 0 0 1.5px rgba(27, 26, 23, 0.35);
  }
}

/* ---- effects ------------------------------------------------------------ */
/* short-lived classes from fx() in game.js; --d staggers them into a wave
   with Visual FX on. With FX off the animations end at once, so the ones that
   carry a game event hold a still look instead (html.fx-off rules below) */
.c .v {
  display: inline-block;
}
.c.fill .v {
  animation: fill 0.18s ease-out;
}
@keyframes fill {
  from { transform: scale(0.55); opacity: 0.3; }
}
.c.unit {
  animation: unit 0.5s ease-out var(--d, 0ms) backwards;
}
@keyframes unit {
  0%, 100% { background-color: var(--cell-bg); }
  35% { background-color: #d6ecae; }
}
@keyframes hinted {
  0% { opacity: 0; transform: rotate(25deg) scale(1.4); }
  15%, 65% { opacity: 1; transform: rotate(25deg) scale(1); }
  100% { opacity: 0; transform: rotate(25deg) scale(1); }
}
/* Visual FX off: a finished row / column / box holds the green all at once,
   and the hint's blue ring stays drawn, each until fx() clears its class */
html.fx-off .c.unit {
  animation: none;
  background-color: #d6ecae;
}
html.fx-off .c.hinted::after {
  animation: none;
  opacity: 1;
}
.c.oops {
  animation: oops 0.4s ease-out;
}
@keyframes oops {
  20% { transform: translateX(-3px); }
  40% { transform: translateX(3px); }
  60% { transform: translateX(-2px); }
  80% { transform: translateX(1px); }
}
.c.win {
  animation: win 0.55s ease-out var(--d, 0ms) backwards;
}
.c.win .v {
  animation: winpop 0.55s ease-out var(--d, 0ms) backwards;
}
@keyframes win {
  0%, 100% { background-color: var(--cell-bg); }
  40% { background-color: #d6ecae; }
}
@keyframes winpop {
  40% { transform: scale(1.3); }
}

/* the rubber stamp; its resting look is the base style so it still lands
   when Visual FX is off and the animation is skipped */
.stamp {
  position: absolute;
  top: 50%;
  left: 50%;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.1rem;
  padding: 0.35em 0.7em 0.4em;
  border: 0.14em solid var(--red);
  border-radius: 0.2em;
  box-shadow: inset 0 0 0 0.07em var(--paper), inset 0 0 0 0.13em var(--red);
  color: var(--red);
  background: rgba(251, 247, 238, 0.35);
  font-family: var(--serif);
  font-size: calc(var(--size) * 0.1);
  line-height: 1;
  text-transform: uppercase;
  white-space: nowrap;
  pointer-events: none;
  transform: translate(-50%, -50%) rotate(-12deg);
  opacity: 0.9;
  mix-blend-mode: multiply;
  /* worn ink */
  -webkit-mask-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='160' height='160'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='.7' numOctaves='2' stitchTiles='stitch'/%3E%3CfeColorMatrix values='0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 -3 0 0 0 2.25'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)'/%3E%3C/svg%3E");
  mask-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='160' height='160'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='.7' numOctaves='2' stitchTiles='stitch'/%3E%3CfeColorMatrix values='0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 -3 0 0 0 2.25'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)'/%3E%3C/svg%3E");
  animation: stamp 0.28s cubic-bezier(0.3, 0, 0.6, 1);
}
.stamp[hidden] {
  display: none;
}
.stamp b {
  font-weight: 800;
  letter-spacing: 0.12em;
  margin-right: -0.12em;
}
.stamp span {
  font-size: 0.34em;
  font-weight: 700;
  letter-spacing: 0.14em;
  font-variant-numeric: lining-nums;
}
.stamp span:empty {
  display: none;
}
@keyframes stamp {
  from {
    transform: translate(-50%, -50%) rotate(-4deg) scale(1.9);
    opacity: 0;
  }
}

/* pause: the shared overlay is see-through, so hide the digits too */
.field.paused .board {
  filter: blur(10px);
  pointer-events: none;
}

.loading {
  position: absolute;
  inset: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  background: rgba(243, 236, 220, 0.8);
  color: var(--ink-soft);
  font-style: italic;
  font-weight: 600;
  font-size: 1rem;
}
.loading[hidden] {
  display: none;
}

#status {
  margin: 0;
  min-height: 1.4em;
  max-width: var(--size);
  text-align: center;
  font-style: italic;
  font-weight: 600;
  font-size: 0.98rem;
  line-height: 1.35;
}
#status.good { color: var(--good); }
#status.bad { color: var(--red); }
#status.info { color: var(--info); }

/* ---- digit pad + tools -------------------------------------------------- */
.pad {
  display: grid;
  grid-template-columns: repeat(9, 1fr);
  gap: 5px;
  width: var(--size);
  max-width: 100%;
}
.key {
  cursor: pointer;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 1px;
  min-width: 0;
  height: 3.3rem;
  padding: 0;
  border-radius: 2px;
  border: 1px solid var(--ink);
  background: var(--cell-bg);
  box-shadow: 2px 2px 0 var(--ink);
  color: var(--ink);
  font-family: inherit;
  font-size: 1.55rem;
  font-weight: 600;
  font-variant-numeric: lining-nums;
  line-height: 1;
  touch-action: manipulation;
  transition: background 0.12s ease, opacity 0.12s ease, transform 0.08s ease, box-shadow 0.08s ease;
}
.key small {
  font-size: 0.62rem;
  font-style: italic;
  font-weight: 500;
  color: var(--muted);
}
.key:hover {
  background: #fff;
}
.key:active {
  transform: translate(2px, 2px);
  box-shadow: 0 0 0 var(--ink);
}
.key.done {
  opacity: 0.3;
  text-decoration: line-through;
  box-shadow: none;
}
.pad.notes-on .key {
  color: var(--pencil);
  font-family: var(--hand);
  font-size: 1.5rem;
  border-style: dashed;
  box-shadow: none;
}

.tools {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  width: var(--size);
  max-width: 100%;
  border-top: 1px solid var(--ink);
  border-bottom: 1px solid var(--ink);
}
.tool {
  cursor: pointer;
  position: relative;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0.35rem;
  padding: 0.55rem 0.2rem;
  border: none;
  background: transparent;
  color: var(--ink-soft);
  font-family: inherit;
  font-size: 0.78rem;
  font-weight: 700;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  touch-action: manipulation;
  transition: background 0.12s ease, color 0.12s ease;
}
.tool + .tool {
  border-left: 1px solid var(--rule);
}
.tool .ti {
  font-size: 1.15rem;
  line-height: 1;
  font-weight: 400;
  letter-spacing: 0;
  color: var(--ink);
}
.tool:hover {
  background: rgba(27, 26, 23, 0.05);
  color: var(--ink);
}
.tool:disabled {
  cursor: default;
  opacity: 0.4;
}
.tool:disabled:hover {
  background: transparent;
}
.tool[aria-pressed="true"] {
  background: var(--ink);
  color: var(--paper);
}
.tool[aria-pressed="true"] .ti {
  color: var(--paper);
}
.badge {
  align-self: flex-start;
  margin: 0.1rem 0 0 -0.2rem;
  font-size: 0.56rem;
  font-weight: 800;
  font-style: italic;
  letter-spacing: 0.04em;
  color: var(--muted);
}
.tool[aria-pressed="true"] .badge {
  color: var(--same);
}
.badge[hidden] {
  display: none;
}

/* ---- levels / options ---------------------------------------------------- */
.levels {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 0.4rem;
  width: var(--size);
  max-width: 100%;
  margin-top: 0.2rem;
}
.lvl {
  cursor: pointer;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.12rem;
  min-width: 0;
  padding: 0.45rem 0.3rem 0.5rem;
  background: transparent;
  color: var(--ink);
  border: 1px solid var(--ink);
  border-radius: 2px;
  font-family: inherit;
  font-size: 0.95rem;
  font-weight: 700;
  line-height: 1.1;
  transition: background 0.15s ease, color 0.15s ease;
}
.lvl .stars {
  font-size: 0.7rem;
  letter-spacing: 0.08em;
  color: var(--red);
}
.lvl .stars i {
  font-style: normal;
  opacity: 0.22;
}
.lvl small {
  font-weight: 400;
  font-style: italic;
  font-size: 0.74rem;
  color: var(--muted);
}
/* the level's key (E D H X) sits in the button's corner: beside the name it
   would wrap on the longer ones */
.lvl {
  position: relative;
}
.lvl .lvl-name[data-gs-key]::after {
  position: absolute;
  top: 3px;
  right: 3px;
  margin: 0;
  font-size: 0.62rem;
}
.lvl:hover {
  background: rgba(27, 26, 23, 0.05);
}
.lvl.sel {
  background: var(--ink);
  color: var(--paper);
}
.lvl.sel .stars {
  color: var(--sel);
}
.lvl.sel small {
  color: #cfc6b3;
}

.opts {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: center;
  gap: 0.6rem;
}

.btn {
  cursor: pointer;
  background: var(--red);
  color: #fff8ec;
  border: none;
  border-radius: 2px;
  padding: 0.6rem 1.3rem;
  font-family: inherit;
  font-size: 0.85rem;
  font-weight: 700;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  box-shadow: 2px 2px 0 var(--ink);
  transition: background 0.15s ease, transform 0.08s ease, box-shadow 0.08s ease;
}
.btn:hover {
  background: #a02217;
}
.btn:active {
  transform: translate(2px, 2px);
  box-shadow: 0 0 0 var(--ink);
}

.pad button:focus-visible,
.tools button:focus-visible,
.lvl:focus-visible,
.btn:focus-visible,
.icon-btn:focus-visible,
.rules summary:focus-visible {
  outline: 2px solid var(--pen);
  outline-offset: 2px;
}

#stats {
  margin: 0;
  color: var(--muted);
  font-size: 0.88rem;
  font-style: italic;
  text-align: center;
}
#stats b {
  color: var(--ink);
  font-style: normal;
}

/* how to play reads as a two-column newspaper story */
.rules {
  width: 100%;
  border-top: 3px double var(--ink);
  padding-top: 0.5rem;
  color: var(--ink-soft);
  font-size: 0.9rem;
  line-height: 1.45;
}
.rules summary {
  cursor: pointer;
  text-align: center;
  font-weight: 800;
  font-size: 0.8rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--ink);
  list-style: none;
}
.rules summary::-webkit-details-marker {
  display: none;
}
/* a red-pen chevron instead of the browser's triangle; it turns down when open */
.rules summary::before {
  content: "";
  display: inline-block;
  width: 0.42em;
  height: 0.42em;
  margin-right: 0.7em;
  vertical-align: 0.12em;
  border-right: 2px solid var(--red);
  border-bottom: 2px solid var(--red);
  transform: rotate(-45deg);
}
.rules[open] summary::before {
  transform: translateY(-0.15em) rotate(45deg);
}
.rules[open] summary {
  margin-bottom: 0.6rem;
}
.rules p {
  margin: 0 0 0.6rem;
}
.rules p:first-of-type::first-letter {
  float: left;
  font-size: 3.1em;
  line-height: 0.85;
  font-weight: 700;
  margin: 0.05em 0.08em 0 0;
  color: var(--ink);
}
.rules b {
  color: var(--ink);
}
@media (min-width: 520px) {
  .rules[open] {
    column-count: 2;
    column-gap: 1.4rem;
    column-rule: 1px solid var(--rule);
  }
  .rules summary {
    column-span: all;
  }
}

#byline {
  margin: 0.1rem 0 0;
  color: var(--muted);
  font-size: 0.72rem;
  font-style: italic;
}

/* ---- the shared pause overlay, reprinted on paper ------------------------ */
body > .gs-pause {
  background: rgba(20, 18, 15, 0.45);
  font-family: var(--serif);
}
.gs-pause .gs-pause-card {
  background: var(--paper);
  border: 1px solid var(--ink);
  border-radius: 2px;
  box-shadow: 4px 4px 0 var(--ink);
  color: var(--ink);
}
.gs-pause .gs-pause-card h2 {
  font-weight: 800;
  letter-spacing: 0.06em;
  text-transform: uppercase;
}
.gs-pause .gs-pause-card p {
  color: var(--muted);
  font-style: italic;
}
.gs-pause .gs-pause-card button {
  border: 1px solid var(--ink);
  border-radius: 2px;
  background: var(--ink);
  color: var(--paper);
  font-family: var(--serif);
}
.gs-pause .gs-pause-card button:hover {
  background: #3a3731;
}

/* ---- narrow screens ------------------------------------------------------- */
@media (max-width: 600px) {
  .wrap {
    padding: 52px 6px 1.5rem;
  }
  .sheet {
    padding: 12px 12px 16px;
    gap: 0.7rem;
  }
  .mast {
    grid-template-columns: 1fr;
  }
  .ear {
    display: none;
  }
  .nameplate {
    justify-self: center;
    font-size: 2.1rem;
  }
  .dl-mid {
    display: none;
  }
  .dateline {
    font-size: 0.6rem;
    letter-spacing: 0.05em;
  }
  .dateline span {
    white-space: nowrap;
  }
  .title {
    font-size: 1.4rem;
  }
  .tool {
    flex-direction: column;
    gap: 0.2rem;
    font-size: 0.66rem;
    padding: 0.45rem 0.1rem;
  }
  .badge {
    position: absolute;
    top: 3px;
    right: 5px;
    margin: 0;
  }
  .lvl {
    font-size: 0.85rem;
  }
  .lvl small {
    font-size: 0.66rem;
  }
}