/* Grid Bid: layout, dice faces, highlights, animations. Portrait phone first (390x844), works at 360 wide. */

:root {
  --bg: #f4efe6;
  --panel: #fffdf8;
  --ink: #1f2430;
  --muted: #6b6f7a;
  --line: #d9d2c5;
  --tile: #fbf6ea;
  --tile-edge: #d8ccb4;
  --pip: #1f2430;
  --accent: #2b5fd9;
  --accent-ink: #ffffff;
  --select: #2b5fd9;
  --target: #f2b544;
  --region: #8c6bd6;
  --ok: #2a8a5b;
  --ok-bg: #e3f3ea;
  --no-bg: #f1ede6;
  --danger: #b8432f;
  --radius: 14px;
  --gap: 6px;
  --tile-radius: 10px;
  --shadow: 0 1px 2px rgba(0, 0, 0, 0.08), 0 4px 14px rgba(0, 0, 0, 0.06);
  --anim: 200ms;
  color-scheme: light dark;
}

@media (prefers-color-scheme: dark) {
  :root {
    --bg: #171a21;
    --panel: #1f2430;
    --ink: #eef0f4;
    --muted: #a3a8b4;
    --line: #353b48;
    --tile: #f3e9d2;
    --tile-edge: #b9ab8c;
    --pip: #1f2430;
    --accent: #6f94ff;
    --accent-ink: #0d1117;
    --select: #6f94ff;
    --target: #ffc857;
    --region: #b79cff;
    --ok: #5fcf93;
    --ok-bg: #1d3328;
    --no-bg: #262c39;
    --danger: #ff8a73;
  }
}

* { box-sizing: border-box; }
html, body { margin: 0; padding: 0; }
body {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  background: var(--bg);
  color: var(--ink);
  -webkit-text-size-adjust: 100%;
  -webkit-tap-highlight-color: transparent;
  overflow-x: hidden;
  line-height: 1.35;
}
button { font: inherit; color: inherit; }

.app {
  max-width: 480px;
  margin: 0 auto;
  padding: max(8px, env(safe-area-inset-top)) 16px max(16px, env(safe-area-inset-bottom));
  min-height: 100vh;
  min-height: 100dvh;
  display: flex;
  flex-direction: column;
}
.screen { display: flex; flex-direction: column; gap: 10px; flex: 1; }
.screen[hidden] { display: none; }
[hidden] { display: none !important; }

/* Buttons */
.btn {
  min-height: 44px;
  padding: 0 16px;
  border-radius: 12px;
  border: 1px solid var(--line);
  background: var(--panel);
  cursor: pointer;
  font-weight: 600;
  box-shadow: var(--shadow);
}
.btn:active { transform: translateY(1px); }
.btn:disabled { opacity: 0.5; cursor: default; }
.btn-primary { background: var(--accent); color: var(--accent-ink); border-color: transparent; }
.btn-wide { width: 100%; }
.btn-quiet { background: transparent; box-shadow: none; color: var(--muted); }
.btn-icon { width: 44px; padding: 0; border-radius: 50%; font-weight: 700; }
.btn-step { width: 56px; font-size: 26px; font-weight: 700; }

/* Home */
.home, .end { display: flex; flex-direction: column; gap: 14px; padding-top: 24px; }
.title { font-size: 44px; margin: 0; letter-spacing: -0.02em; }
.title.small { font-size: 32px; }
.tagline { margin: 0; color: var(--muted); font-size: 17px; }
.home-buttons { display: flex; flex-direction: column; gap: 10px; }
.home-stats { color: var(--muted); font-size: 15px; }
.settings { padding-top: 6px; }
.toggle { display: flex; align-items: center; gap: 10px; min-height: 44px; cursor: pointer; }
.toggle input { width: 22px; height: 22px; }
.footnote { color: var(--muted); font-size: 13px; }

/* HUD */
.hud {
  display: grid;
  grid-template-columns: 1fr 1fr 1fr 44px;
  gap: 8px;
  align-items: center;
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 8px 10px;
  box-shadow: var(--shadow);
}
.hud-item { display: flex; flex-direction: column; }
.hud-label { font-size: 11px; text-transform: uppercase; letter-spacing: 0.06em; color: var(--muted); }
.hud-value { font-size: 18px; font-weight: 700; font-variant-numeric: tabular-nums; }

/* Goals */
.goals { display: flex; flex-direction: column; gap: 6px; }
.goal {
  display: flex;
  align-items: center;
  gap: 10px;
  min-height: 44px;
  padding: 6px 12px;
  border-radius: 12px;
  border: 1px solid var(--line);
  background: var(--no-bg);
  text-align: left;
  cursor: pointer;
  font-size: 16px;
}
.goal .goal-state {
  width: 26px;
  height: 26px;
  border-radius: 50%;
  border: 2px dashed var(--muted);
  flex: 0 0 auto;
  display: grid;
  place-items: center;
  font-size: 15px;
  font-weight: 800;
}
.goal.holds { background: var(--ok-bg); border-color: var(--ok); }
.goal.holds .goal-state { border: 2px solid var(--ok); color: var(--ok); }
.goal.holds .goal-state::after { content: "✓"; }
.goal.highlighted { outline: 3px solid var(--region); outline-offset: -1px; }
.goal .goal-text { flex: 1; }
.goal .goal-text small { color: var(--muted); font-weight: 400; }

/* Board: a 7x7 grid, the outer ring holds the slide arrows */
.board-wrap { position: relative; }
.board {
  display: grid;
  grid-template-columns: repeat(7, 1fr);
  gap: var(--gap);
  width: 100%;
  aspect-ratio: 1;
  touch-action: manipulation;
  user-select: none;
  -webkit-user-select: none;
}
.board > * { min-width: 0; }
.corner { }
.arrow {
  border: none;
  background: transparent;
  color: var(--muted);
  border-radius: 10px;
  font-size: 20px;
  cursor: pointer;
  visibility: hidden;
  display: grid;
  place-items: center;
  aspect-ratio: 1;
  padding: 0;
}
.arrow::before { content: ""; width: 0; height: 0; border: 7px solid transparent; }
.arrow.up::before { border-bottom: 11px solid currentColor; border-top: 0; }
.arrow.down::before { border-top: 11px solid currentColor; border-bottom: 0; }
.arrow.left::before { border-right: 11px solid currentColor; border-left: 0; }
.arrow.right::before { border-left: 11px solid currentColor; border-right: 0; }
.board.mode-slide .arrow { visibility: visible; background: var(--panel); border: 1px solid var(--line); color: var(--accent); }
.board.mode-slide .arrow:active { background: var(--accent); color: var(--accent-ink); }

.tile {
  position: relative;
  aspect-ratio: 1;
  padding: 0;
  border-radius: var(--tile-radius);
  border: 1px solid var(--tile-edge);
  background: var(--tile);
  box-shadow: inset 0 -3px 0 rgba(0, 0, 0, 0.08), 0 1px 2px rgba(0, 0, 0, 0.12);
  cursor: pointer;
  transition: transform var(--anim) ease, opacity var(--anim) ease, box-shadow 120ms ease;
  display: grid;
  place-items: center;
  z-index: 1;
}
.tile.inert { cursor: default; }
.tile.selected { box-shadow: 0 0 0 3px var(--select), inset 0 -3px 0 rgba(0, 0, 0, 0.08); z-index: 2; }
.tile.target { box-shadow: 0 0 0 3px var(--target), inset 0 -3px 0 rgba(0, 0, 0, 0.08); }
.tile.target::after {
  content: "";
  position: absolute;
  inset: 4px;
  border: 2px dashed var(--target);
  border-radius: calc(var(--tile-radius) - 3px);
  pointer-events: none;
}
.tile.region::before {
  content: "";
  position: absolute;
  inset: -3px;
  border-radius: calc(var(--tile-radius) + 3px);
  border: 3px solid var(--region);
  pointer-events: none;
}
.tile.region { background: color-mix(in srgb, var(--tile) 80%, var(--region) 20%); }
.tile.moving { z-index: 3; }
.tile.bump { animation: bump var(--anim) ease; }
.tile.fade { opacity: 0; }
@keyframes bump {
  0% { transform: scale(1); }
  50% { transform: scale(1.18); }
  100% { transform: scale(1); }
}

/* Dice faces */
.face {
  width: 78%;
  height: 78%;
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  grid-template-rows: repeat(3, 1fr);
  place-items: center;
}
.face .pip {
  width: 62%;
  height: 62%;
  border-radius: 50%;
  background: var(--pip);
  visibility: hidden;
}
.face[data-v="1"] .pip:nth-child(5),
.face[data-v="2"] .pip:nth-child(3), .face[data-v="2"] .pip:nth-child(7),
.face[data-v="3"] .pip:nth-child(3), .face[data-v="3"] .pip:nth-child(5), .face[data-v="3"] .pip:nth-child(7),
.face[data-v="4"] .pip:nth-child(1), .face[data-v="4"] .pip:nth-child(3), .face[data-v="4"] .pip:nth-child(7), .face[data-v="4"] .pip:nth-child(9),
.face[data-v="5"] .pip:nth-child(1), .face[data-v="5"] .pip:nth-child(3), .face[data-v="5"] .pip:nth-child(5), .face[data-v="5"] .pip:nth-child(7), .face[data-v="5"] .pip:nth-child(9),
.face[data-v="6"] .pip:nth-child(1), .face[data-v="6"] .pip:nth-child(3), .face[data-v="6"] .pip:nth-child(4), .face[data-v="6"] .pip:nth-child(6), .face[data-v="6"] .pip:nth-child(7), .face[data-v="6"] .pip:nth-child(9) {
  visibility: visible;
}
.face.numeral { display: grid; place-items: center; font-size: clamp(20px, 7vw, 30px); font-weight: 700; color: var(--pip); }
.face.numeral .pip { display: none; }
.face.small { width: 22px; height: 22px; }
.face.small .pip { width: 5px; height: 5px; }
.face.small.numeral { font-size: 15px; }

/* Nudge popover */
.nudge-pop {
  position: absolute;
  display: flex;
  gap: 8px;
  z-index: 5;
  transform: translate(-50%, 0);
}
.nudge-btn { width: 56px; height: 48px; font-size: 18px; font-weight: 700; padding: 0; background: var(--accent); color: var(--accent-ink); border-color: transparent; }

/* Bag */
.bag {
  display: grid;
  grid-template-columns: repeat(6, 1fr);
  gap: 6px;
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 6px 8px;
}
.bag-chip { display: flex; align-items: center; justify-content: center; gap: 4px; font-size: 14px; font-variant-numeric: tabular-nums; }
.bag-chip .count { color: var(--muted); }
.bag-chip.empty { opacity: 0.4; }
.bag-chip .face.small { background: var(--tile); border-radius: 5px; border: 1px solid var(--tile-edge); padding: 2px; }
.bag-title { grid-column: 1 / -1; font-size: 11px; text-transform: uppercase; letter-spacing: 0.06em; color: var(--muted); }

/* Panels */
.panel {
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 10px;
  box-shadow: var(--shadow);
  display: flex;
  flex-direction: column;
  gap: 10px;
}
.hint { margin: 0; color: var(--muted); font-size: 14px; min-height: 1.3em; }
.bid-row { display: flex; align-items: center; justify-content: center; gap: 16px; }
.bid-value { display: flex; flex-direction: column; align-items: center; min-width: 90px; }
.bid-value .bid-label, .bid-value .bid-sub { font-size: 12px; text-transform: uppercase; letter-spacing: 0.06em; color: var(--muted); }
#bid-value { font-size: 40px; font-weight: 800; line-height: 1; font-variant-numeric: tabular-nums; }

.modes { display: grid; grid-template-columns: repeat(4, 1fr); gap: 6px; }
.mode {
  min-height: 46px;
  border-radius: 12px;
  border: 1px solid var(--line);
  background: var(--bg);
  font-weight: 600;
  cursor: pointer;
}
.mode.active { background: var(--accent); color: var(--accent-ink); border-color: transparent; }
.confirm { display: flex; align-items: center; gap: 8px; flex-wrap: wrap; }
.confirm span { flex: 1 1 100%; }

/* Result */
.result h2 { margin: 0; font-size: 28px; }
.result-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 8px; }
.result-grid > div { display: flex; flex-direction: column; }
.breakdown { margin: 0; color: var(--muted); }
.result-buttons { display: grid; grid-template-columns: 1fr 1fr; gap: 8px; }
.replay-bar { font-size: 14px; color: var(--muted); min-height: 1.4em; }

/* End screen */
.rounds { width: 100%; border-collapse: collapse; background: var(--panel); border-radius: var(--radius); overflow: hidden; border: 1px solid var(--line); }
.rounds th, .rounds td { padding: 8px 6px; text-align: center; font-variant-numeric: tabular-nums; }
.rounds th { font-size: 12px; text-transform: uppercase; letter-spacing: 0.06em; color: var(--muted); }
.rounds tr + tr td { border-top: 1px solid var(--line); }
.total { display: flex; justify-content: space-between; font-size: 22px; padding: 0 4px; }
.best { color: var(--muted); }
.share { display: flex; gap: 8px; align-items: center; }
.share code { flex: 1; font-size: 13px; background: var(--panel); border: 1px solid var(--line); border-radius: 10px; padding: 10px; word-break: break-word; }

/* Stats */
.stat-list { list-style: none; padding: 0; margin: 0; display: flex; flex-direction: column; gap: 6px; }
.stat-list li { background: var(--panel); border: 1px solid var(--line); border-radius: 10px; padding: 8px 10px; font-size: 14px; display: flex; justify-content: space-between; gap: 10px; }
.stat-list li span:last-child { color: var(--muted); }
.stat-summary { display: grid; grid-template-columns: repeat(3, 1fr); gap: 8px; }
.stat-summary div { background: var(--panel); border: 1px solid var(--line); border-radius: 10px; padding: 8px; display: flex; flex-direction: column; }

/* Help sheet */
.sheet {
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.45);
  display: flex;
  align-items: flex-end;
  justify-content: center;
  z-index: 20;
}
.sheet-body {
  background: var(--panel);
  color: var(--ink);
  width: 100%;
  max-width: 520px;
  max-height: 92vh;
  max-height: 92dvh;
  overflow-y: auto;
  border-radius: 18px 18px 0 0;
  padding: 18px 16px max(16px, env(safe-area-inset-bottom));
  font-size: 15px;
}
.sheet-body h2 { margin-top: 0; }
.sheet-body h3 { margin-bottom: 4px; }
.sheet-body ul { padding-left: 20px; }
.formula { background: var(--bg); border-radius: 10px; padding: 10px; font-size: 14px; }
.examples { width: 100%; border-collapse: collapse; font-size: 13px; }
.examples th, .examples td { padding: 5px 4px; text-align: left; border-bottom: 1px solid var(--line); }

/* Toast */
.toast {
  position: fixed;
  left: 50%;
  bottom: 24px;
  transform: translateX(-50%);
  background: var(--ink);
  color: var(--bg);
  padding: 10px 16px;
  border-radius: 12px;
  font-size: 14px;
  z-index: 30;
  box-shadow: var(--shadow);
}

@media (prefers-reduced-motion: reduce) {
  .tile { transition: none; }
  .tile.bump { animation: none; }
}

/* Narrow phones (360 wide): tighter gutters keep tiles and arrows at 44px or more */
@media (max-width: 374px) {
  .app { padding-left: 12px; padding-right: 12px; }
  .board { --gap: 4px; }
  .hud { padding: 6px 8px; }
  .goal { font-size: 15px; }
}

/* Word mode */
.face.letter { display: grid; place-items: center; position: relative; width: 100%; height: 100%; }
.face.letter .ch { font-size: clamp(20px, 7vw, 30px); font-weight: 800; color: var(--pip); line-height: 1; }
.face.letter .val { position: absolute; right: 4px; bottom: 2px; font-size: 10px; font-weight: 700; color: var(--muted); }
.face.letter.wild .ch { color: var(--region); }
.tile.locked { background: #cfe6d9; border-color: #6fae8e; box-shadow: inset 0 -3px 0 rgba(0, 0, 0, 0.12); }
.tile.locked::after { content: ""; position: absolute; left: 4px; top: 4px; width: 7px; height: 7px; border-radius: 50%; background: var(--ok); }
.tile.locked.wild { background: #e3d8f7; border-color: #a98de0; }
.words-panel { gap: 8px; }
.words-head { display: flex; justify-content: space-between; align-items: baseline; font-weight: 700; }
.chips { display: flex; flex-wrap: wrap; gap: 6px; }
.chip {
  display: inline-flex; align-items: center; gap: 6px; min-height: 44px; padding: 0 12px;
  border-radius: 999px; border: 1px solid var(--line); background: var(--bg); cursor: pointer; font-weight: 700; letter-spacing: 0.04em;
}
.chip-score { font-size: 12px; color: var(--muted); font-weight: 600; }
.chip.active { background: var(--region); color: #fff; border-color: transparent; }
.chip.active .chip-score { color: #fff; }
.bag.letters { display: flex; flex-wrap: wrap; gap: 4px 6px; font-size: 12px; font-variant-numeric: tabular-nums; }
.bag.letters .bag-title { width: 100%; }
.bag-letter { color: var(--ink); }
.bag-letter.empty { opacity: 0.35; }
.finish-row { display: flex; align-items: center; justify-content: space-between; gap: 10px; }
.locked-list { list-style: none; margin: 0; padding: 0; display: flex; flex-direction: column; gap: 4px; }
.locked-list li { display: flex; justify-content: space-between; font-weight: 600; letter-spacing: 0.04em; }
.result-grid.two { grid-template-columns: 1fr 2fr; }
@media (prefers-color-scheme: dark) {
  .tile.locked { background: #9fd1b5; border-color: #5a9f7c; }
  .tile.locked.wild { background: #cdbcf0; border-color: #a98de0; }
}
.face.letter { grid-template-columns: 1fr; grid-template-rows: 1fr; }
.chips {
  display: grid;
  grid-auto-flow: column;
  grid-template-rows: repeat(2, auto);
  grid-auto-columns: max-content;
  gap: 6px;
  overflow-x: auto;
  padding-bottom: 4px;
  scrollbar-width: thin;
}
.chips .hint { grid-row: span 2; white-space: normal; max-width: 100%; }

/* Word mode: fit a portrait phone without scrolling */
.word-screen { gap: 8px; }
.word-hud { grid-template-columns: 1fr 1fr auto 44px 44px; }
.btn-finish { padding: 0 12px; font-size: 14px; }
.locked-line { font-size: 13px; color: var(--muted); min-height: 1.3em; line-height: 1.3; padding: 0 4px; letter-spacing: 0.02em; }
.locked-line b { color: var(--ink); font-weight: 700; }
.word-actions { gap: 8px; }
.modes.five { grid-template-columns: repeat(5, 1fr); }
.modes.five .mode { padding: 0 2px; font-size: 14px; }
.tile.first-pick { box-shadow: 0 0 0 3px var(--target), inset 0 -3px 0 rgba(0, 0, 0, 0.08); }
.bag.letters { padding: 6px 8px; font-size: 12px; }
@media (max-height: 700px) {
  .word-screen { gap: 6px; }
  .word-hud { padding: 4px 8px; }
  .word-actions { padding: 8px; gap: 6px; }
  .bag.letters { font-size: 11px; padding: 4px 6px; gap: 2px 5px; }
  .locked-line { font-size: 12px; }
  .word-screen .confirm span { font-size: 14px; }
  .app:has(#screen-word:not([hidden])) { padding-top: 4px; padding-bottom: 6px; }
}

.wild-btn { background: var(--region); position: relative; }
.wild-btn small { position: absolute; right: 6px; bottom: 3px; font-size: 10px; font-weight: 700; }
.result-buttons.three { grid-template-columns: 1fr 1fr 1fr; }
.result-buttons.three .btn { padding: 0 8px; font-size: 14px; }