:root {
  --bg: #f6efe4;
  --felt: #2f6b4f;
  --felt-dark: #24563f;
  --ink: #2b2420;
  --muted: #7a6d62;
  --ok: #7fe0a6;
  --bad: #ff7a7a;
  --ginger: #ef8a2b;
  --midnight: #2c2c36;
  --smoky: #6c87ad;
  --pinky: #e45c93;
  --rack: #3a302b;
  --rack-ledge: #221c19;
  --tile-back: #f1e8d8;
  --tile: #fffaf2;
  --tile-edge: #c9b9a3;
  --surface: #fff;
  --line: #d8cbbb;
  --err: #c0392b;
}
/* Halloween: a moonlit night, a haunted purple table, bone-white cats in witch hats */
:root[data-theme="halloween"] {
  --bg: #1c1526;
  --felt: #3b2858;
  --felt-dark: #2c1e44;
  --ink: #f1e6d6;
  --muted: #b3a3c4;
  --rack: #1f1a1d;
  --rack-ledge: #0d0a0c;
  --tile-back: #e6dcc6;
  --tile: #f4ecda;
  --tile-edge: #a99a80;
  --surface: #2b2138;
  --line: #4a3c5c;
  --err: #ff8a6a;
}
* { box-sizing: border-box; }
html { scrollbar-gutter: stable; }
body { margin: 0; font-family: system-ui, -apple-system, "Segoe UI", sans-serif; background: var(--bg); color: var(--ink); }
header { display: flex; justify-content: space-between; align-items: center; padding: 10px 16px; }
h1 { margin: 0; font-size: 1.5rem; }
.screen { padding: 0 16px 24px; max-width: 1100px; margin: 0 auto; }
.hidden { display: none !important; }
.intro { max-width: 480px; margin: 8px auto 16px; line-height: 1.5; }
.card { background: var(--surface); border-radius: 14px; padding: 18px; max-width: 420px; margin: 0 auto 12px; box-shadow: 0 2px 10px #0001; display: flex; flex-direction: column; gap: 10px; }
.row { display: flex; gap: 8px; }
.row input { flex: 1; text-transform: uppercase; letter-spacing: .2em; }
.or { text-align: center; color: var(--muted); font-size: .85rem; }
input { font: inherit; padding: 10px 12px; border: 1px solid var(--line); border-radius: 8px; background: var(--surface); color: var(--ink); }
button { font: inherit; padding: 9px 14px; border-radius: 8px; border: 1px solid var(--line); background: var(--surface); color: var(--ink); cursor: pointer; }
button:disabled { opacity: .45; cursor: default; }
button.primary { background: var(--ginger); border-color: var(--ginger); color: #fff; font-weight: 600; }
button.small { padding: 3px 8px; font-size: .8rem; }
.err { color: var(--err); min-height: 1.2em; margin: 4px 0; }

#topbar { display: flex; justify-content: space-between; flex-wrap: wrap; gap: 8px; margin-bottom: 8px; }
#players { display: flex; gap: 8px; flex-wrap: wrap; margin-bottom: 10px; }
.player { background: var(--surface); border-radius: 10px; padding: 6px 10px; font-size: .9rem; border: 2px solid transparent; }
.player.turn { border-color: var(--ginger); }
.player.off { opacity: .5; }
.player .n { font-weight: 600; }

#status { font-weight: 600; margin: 6px 0; }
#tableArea { background: var(--felt); border-radius: 14px; display: flex; align-items: flex-start; }
#tableArea.watching { background: var(--felt-dark); }
#table { flex: 1; min-width: 0; padding: 12px; min-height: 260px; display: flex; flex-wrap: wrap; gap: 12px; align-content: flex-start; }
.set { display: flex; align-items: center; padding: 6px 4px; border-radius: 10px; border: 2px dashed transparent; position: relative; }
.set.valid { border-color: transparent; }
.set.invalid { border-color: var(--bad); background: #ff7a7a22; }
.set .why { position: absolute; bottom: -9px; left: 8px; font-size: .68rem; background: var(--bad); color: #fff; padding: 0 5px; border-radius: 4px; white-space: nowrap; }
.newset { min-width: 90px; min-height: 92px; border: 2px dashed #ffffff60; border-radius: 10px; color: #ffffffb0; display: flex; align-items: center; justify-content: center; font-size: .85rem; text-align: center; padding: 6px; }
.gap { width: 6px; align-self: stretch; border-radius: 4px; }
.picking .gap { width: 16px; background: #ffffff30; cursor: pointer; margin: 0 2px; }
.picking .gap:hover, .picking .newset:hover { background: #ffffff70; }
.picking .newset { cursor: pointer; }

#controls { display: flex; gap: 8px; align-items: center; flex-wrap: wrap; margin: 12px 0 0; }
#meldInfo { color: var(--muted); font-size: .9rem; }
#handBar { display: flex; gap: 8px; align-items: center; margin-top: 8px; font-weight: 600; }
/* The rack: dark wood tiers, like a real Rummikub rack */
#hand { background: var(--rack); border-radius: 12px; padding: 10px 10px 6px; display: flex; flex-direction: column; gap: 8px; margin-top: 6px; box-shadow: inset 0 2px 6px #0007, 0 3px 8px #0003; }
#hand.returning { outline: 3px dashed var(--ginger); cursor: pointer; }
.tier { display: flex; gap: 4px; padding-bottom: 4px; border-bottom: 7px solid var(--rack-ledge); box-shadow: 0 2px 0 #ffffff12; }
.slot { width: 58px; height: 84px; flex: none; border-radius: 8px; }
.picking .slot:empty { cursor: pointer; }
.picking .slot:empty:hover, .slot.over { background: #ffffff1c; outline: 2px dashed #ffffff50; outline-offset: -2px; }

/* The draw pile: face-down cats in a heap */
#pile { flex: none; width: 130px; padding: 10px 8px; display: flex; flex-direction: column; align-items: center; color: #ffffffc0; font-size: .8rem; border-radius: 12px; }
#pile.can { cursor: pointer; }
#pile.can:hover { background: #ffffff14; }
#pile .heap { position: relative; width: 114px; height: 96px; }
#pile .heap i { position: absolute; width: 20px; height: 28px; background: var(--tile-back); border-radius: 4px; box-shadow: 0 1px 0 var(--tile-edge), 0 2px 3px #0004; }
.pileCount { margin-top: 4px; font-weight: 600; }

/* Other players' racks, seen from across the table */
.minirack { display: flex; flex-wrap: wrap; gap: 1px; max-width: 150px; margin-top: 4px; padding: 3px 4px 2px; background: var(--rack); border-bottom: 3px solid var(--rack-ledge); border-radius: 4px 4px 2px 2px; }
.minirack i { width: 6px; height: 9px; background: var(--tile-back); border-radius: 1.5px; }

.tile { width: 58px; height: 84px; background: var(--tile); border-radius: 8px; box-shadow: 0 2px 0 var(--tile-edge), 0 3px 6px #0003; display: flex; flex-direction: column; align-items: center; justify-content: space-between; padding: 4px 2px 3px; cursor: pointer; user-select: none; position: relative; flex: none; }
.tile svg { width: 44px; height: 40px; }
.tile .rank { font-size: 26px; font-weight: 800; line-height: 1; margin-bottom: 2px; }
.tile.selected { transform: translateY(-6px); box-shadow: 0 0 0 3px var(--ginger), 0 6px 10px #0004; }
.tile.fresh::after { content: ""; position: absolute; top: 3px; right: 3px; width: 7px; height: 7px; border-radius: 50%; background: var(--ginger); }
.c-ginger .rank { color: var(--ginger); }
.c-midnight .rank { color: var(--midnight); }
.c-smoky .rank { color: var(--smoky); }
.c-pinky .rank { color: var(--pinky); }
.c-wild .rank { background: linear-gradient(90deg, #ef8a2b, #e45c93, #6c87ad); -webkit-background-clip: text; background-clip: text; color: transparent; }
.mini { transform: scale(.75); transform-origin: left center; margin-right: -14px; }

#logBox { margin-top: 14px; color: var(--muted); font-size: .85rem; }
#log { padding-left: 18px; }
#over { text-align: center; }

@media (max-width: 600px) {
  .tile { width: 48px; height: 72px; }
  .tile svg { width: 36px; height: 32px; }
  .tile .rank { font-size: 22px; }
  .slot { width: 48px; height: 72px; }
  #tableArea { flex-direction: column-reverse; align-items: stretch; }
  #pile { width: auto; flex-direction: row; justify-content: center; gap: 10px; padding: 6px; }
  #pile .heap { width: 90px; height: 56px; }
  #pile .heap i { width: 14px; height: 20px; }
}

/* Dragging cats around in your paws */
#hand .tile { touch-action: none; }
.tile.placeholder { opacity: .3; }
.tile.ghost { position: fixed; left: 0; top: 0; z-index: 10; pointer-events: none; box-shadow: 0 0 0 3px var(--ginger), 0 10px 18px #0005; }

/* Turn timer */
#timerPick { display: flex; gap: 8px; align-items: center; justify-content: center; color: var(--muted); }
select { font: inherit; padding: 6px 8px; border: 1px solid var(--line); border-radius: 8px; background: var(--surface); color: var(--ink); }
#timer { font-weight: 700; font-variant-numeric: tabular-nums; margin-right: 10px; }
#timer.low { color: var(--err); }

/* Theme switch */
.tile .hat { display: none; }
[data-theme="halloween"] .tile .hat { display: inline; }
[data-theme="halloween"] .card, [data-theme="halloween"] .player { box-shadow: 0 2px 12px #0006; }

/* Halloween decorations: pumpkins and wizard kittens, only in Halloween mode, never in the way of a tap */
.spooky { display: none; pointer-events: none; }
[data-theme="halloween"] .spooky { display: block; }
.spooky svg { display: block; filter: drop-shadow(0 3px 3px #0006); }
.spooky .glow { animation: flicker 2.6s infinite; }
@keyframes flicker { 0%, 100% { opacity: 1; } 40% { opacity: .75; } 45% { opacity: .95; } 70% { opacity: .82; } }
@media (prefers-reduced-motion: reduce) { .spooky .glow { animation: none; } }

#tableArea { position: relative; }
#tableArea > :not(.spooky) { position: relative; }
.deco-table .left, .deco-table .right { position: absolute; bottom: 6px; display: flex; align-items: flex-end; gap: 2px; }
.deco-table .left { left: 10px; }
.deco-table .right { right: 10px; }

#handBar { position: relative; }
.deco-rack { position: absolute; right: 18px; bottom: -14px; }
[data-theme="halloween"] .deco-rack { display: flex; align-items: flex-end; gap: 2px; }

.card { position: relative; }
.deco-card .peek { position: absolute; right: 18px; bottom: calc(100% - 6px); }
.deco-card .patch { position: absolute; left: -14px; bottom: -12px; display: flex; align-items: flex-end; }
[data-theme="halloween"] .intro { margin-bottom: 84px; }

.deco-side { position: fixed; bottom: 12px; z-index: 0; }
[data-theme="halloween"] .deco-side { display: flex; align-items: flex-end; gap: 4px; }
.deco-side.left { left: 14px; }
.deco-side.right { right: 14px; }
@media (max-width: 1440px) { [data-theme="halloween"] .deco-side { display: none; } }
@media (max-width: 600px) { .deco-rack .kitten { display: none; } .deco-table svg { width: 26px; height: auto; } }

/* Poking a kitten or pumpkin (the table pumpkins stay out of the way of taps) */
.spooky .kitten, .spooky .pumpkin { pointer-events: auto; cursor: pointer; transform-origin: 50% 100%; }
.deco-table .pumpkin { pointer-events: none; cursor: default; }
.kitten .wizhat { transform-box: fill-box; transform-origin: 40% 100%; }
.kitten.poke { animation: hop .7s ease-out; }
.kitten.poke .wizhat { animation: hatbounce .8s ease-out; }
.pumpkin.poke { animation: wobble .7s ease-out; }
.spooky .pumpkin.poke .glow { animation: flare .9s ease-out; }
@keyframes hop {
  0%, 100% { transform: none; }
  18% { transform: scale(1.12, .84); }
  45% { transform: translateY(-20px) scale(.94, 1.08); }
  72% { transform: translateY(0) scale(1.1, .9); }
  86% { transform: scale(.97, 1.03); }
}
@keyframes hatbounce {
  0%, 100% { transform: none; }
  35% { transform: translateY(-7px) rotate(-16deg); }
  60% { transform: translateY(-3px) rotate(12deg); }
  80% { transform: rotate(-4deg); }
}
@keyframes wobble {
  0%, 100% { transform: none; }
  15% { transform: rotate(-12deg) scale(1.06); }
  35% { transform: rotate(10deg); }
  55% { transform: rotate(-6deg); }
  75% { transform: rotate(3deg); }
}
@keyframes flare { 0% { fill: #fffbe0; } 30% { fill: #fff3a0; } 100% { fill: #ffcf4a; } }

.bubble, .sparkle { position: fixed; z-index: 20; pointer-events: none; }
.bubble { transform: translate(-50%, -100%); background: var(--surface); color: var(--ink); border: 1px solid var(--line); padding: 3px 9px; border-radius: 12px; font-size: .8rem; font-weight: 600; white-space: nowrap; box-shadow: 0 3px 8px #0006; animation: bubble 1.5s ease-out forwards; }
.sparkle { color: #ffd84a; font-size: 13px; transform: translate(-50%, -50%); animation: sparkle .8s ease-out forwards; }
.sparkle.ember { color: #ff9a3c; }
@keyframes bubble {
  0% { opacity: 0; transform: translate(-50%, -80%) scale(.6); }
  15% { opacity: 1; transform: translate(-50%, -100%) scale(1.05); }
  75% { opacity: 1; transform: translate(-50%, -115%); }
  100% { opacity: 0; transform: translate(-50%, -130%); }
}
@keyframes sparkle {
  0% { opacity: 1; transform: translate(-50%, -50%) scale(.5); }
  100% { opacity: 0; transform: translate(calc(-50% + var(--dx)), calc(-50% + var(--dy))) scale(1.1) rotate(90deg); }
}
@media (prefers-reduced-motion: reduce) {
  .kitten.poke, .kitten.poke .wizhat, .pumpkin.poke { animation: none; }
}

/* The night sky: a crescent moon with drifting clouds and a few twinkling stars, behind everything */
.deco-sky { position: fixed; top: 52px; right: 4%; z-index: -1; }
.deco-sky svg { filter: none; overflow: visible; }
.deco-sky .cloud { animation: drift 26s ease-in-out infinite alternate; }
.deco-sky .cloud.two { animation-duration: 34s; animation-delay: -12s; }
.deco-sky .twinkle { animation: twinkle 3.2s ease-in-out infinite; }
.deco-sky .twinkle:nth-of-type(2n) { animation-delay: -1.1s; animation-duration: 4.1s; }
.deco-sky .twinkle:nth-of-type(3n) { animation-delay: -2.3s; }
@keyframes drift { from { transform: translateX(-18px); } to { transform: translateX(22px); } }
@keyframes twinkle { 0%, 100% { opacity: .9; } 50% { opacity: .25; } }
@media (prefers-reduced-motion: reduce) { .deco-sky .cloud, .deco-sky .twinkle { animation: none; } }
@media (max-width: 600px) { [data-theme="halloween"] .deco-sky { display: none; } }

/* A wild cat swapped off the table: it has to go back out this turn */
.tile.borrowed { box-shadow: 0 0 0 3px #a77bff, 0 0 14px #a77bffaa; }
.tile.borrowed.selected { box-shadow: 0 0 0 3px var(--ginger), 0 0 0 6px #a77bff, 0 6px 14px #0006; }