/*
 * board.css — the play surface: the board, the pieces, the tray, the
 * toolbar and the coach. Lane B's (DESIGN.md §4).
 *
 * It only *uses* the :root tokens style.css declares (DESIGN §3) and never
 * redeclares them; the few colours it mixes are mixes of those tokens, so a
 * palette change in style.css reaches the board too.
 *
 * THE FEEL is a wooden-and-paper board game, not a spreadsheet: the board is
 * a cream tray with a thick ink rim sitting on a darker lip; givens are flat
 * tiles printed onto it (`--given`); a player's pieces are raised chunky
 * tiles with a hard bottom shadow, like something you could pick up — which
 * you can. Box lines are thick ink, cell lines are just the gaps between
 * cells.
 *
 * SIZING comes from js/play.js, which measures the container and writes
 * --board-px, --cell-px, --pad, --corner-top and --tray-cols on .zd-play,
 * plus data-mode="tall" (controls below) or "wide" (controls beside). Every
 * size inside the board is a fraction of --cell-px, so a 4×4 on a tablet
 * and a 9×9 on a phone are the same drawing at different scales.
 *
 * ANIMATION is CSS only: classes added by board.js and removed on
 * `animationend`. All of it stops under prefers-reduced-motion.
 */

/* ============================================================ the surface */

.zd-play {
  position: relative;
  width: 100%;
  height: 100%;
  box-sizing: border-box;
  padding: var(--pad, 12px);
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: var(--pad, 12px);
  /* A safety net on very short viewports, not a plan: play.js sizes the
     board so nothing needs to scroll (hub §2). */
  overflow: auto;
  font-family: var(--font);
  color: var(--ink);
  /* A drag here is a piece on its way somewhere, never a scroll or a zoom. */
  touch-action: none;
  -webkit-user-select: none;
  user-select: none;
  -webkit-touch-callout: none;
  -webkit-tap-highlight-color: transparent;
}
.zd-play[data-mode='wide'] {
  flex-direction: row;
}

.zd-stage {
  flex: none;
  /* Room for the board's rim (3px all round) and lip (below), which are
     box-shadows and so take no space of their own; play.js's RIM_X/RIM_Y. */
  padding: calc(3px + var(--corner-top, 0px)) 3px 11px;
  display: grid;
  place-items: center;
}
.zd-play[data-mode='wide'] .zd-stage {
  padding-top: 3px;
}

.zd-side {
  flex: none;
  width: 100%;
  max-width: 560px;
  display: flex;
  flex-direction: column;
  align-items: stretch;
  gap: 10px;
}
.zd-play[data-mode='wide'] .zd-side {
  align-self: stretch;
  justify-content: center;
  /* Only the right-hand column sits under the shell's corner, so only it
     steps down past it (the same move style.css's landscape menu makes). */
  padding-top: var(--corner-top, 0px);
  box-sizing: border-box;
}

/* ============================================================== the board */

.zd-board {
  --gap: max(2px, calc(var(--cell-px, 40px) * 0.06));
  --tile-r: max(4px, calc(var(--cell-px, 40px) * 0.17));
  position: relative;
  flex: none;
  width: var(--board-px, 300px);
  height: var(--board-px, 300px);
  border-radius: var(--radius);
  background: var(--board);
  /* The rim and the lip: an ink edge, then a darker step beneath, so the
     board sits on the meadow like a tray rather than floating on it. */
  box-shadow:
    0 0 0 3px var(--ink),
    0 7px 0 3px var(--bg-deep),
    0 14px 26px 4px rgba(0, 0, 0, 0.22);
}

/* Uniform gap + half a gap of padding = every track exactly (cell + gap)
   wide, which is what lets .zd-boxes land on the gap centres (board.js). */
.zd-grid {
  position: absolute;
  inset: 0;
  box-sizing: border-box;
  display: grid;
  grid-template-rows: repeat(var(--n), minmax(0, 1fr));
  gap: var(--gap);
  padding: calc(var(--gap) / 2);
  border-radius: var(--radius);
  background: color-mix(in srgb, var(--ink) 16%, var(--board));
}
.zd-row {
  display: grid;
  grid-template-columns: repeat(var(--n), minmax(0, 1fr));
  gap: var(--gap);
  min-height: 0;
}

.zd-boxes {
  position: absolute;
  inset: 0;
  display: grid;
  grid-template-columns: repeat(var(--bx), 1fr);
  grid-template-rows: repeat(var(--by), 1fr);
  border-radius: var(--radius);
  overflow: hidden;
  pointer-events: none;
  z-index: 3;
}
.zd-boxes > div {
  /* Two neighbours' 1.5px edges meet in a 3px ink line on the gap centre. */
  border: 1.5px solid var(--ink);
}

/* ---- a cell ---- */

.zd-cell {
  position: relative;
  min-width: 0;
  min-height: 0;
  margin: 0;
  padding: 0;
  border: 0;
  border-radius: max(3px, calc(var(--cell-px, 40px) * 0.12));
  background: var(--cell);
  color: inherit;
  font: inherit;
  cursor: pointer;
  outline: none;
  -webkit-tap-highlight-color: transparent;
  touch-action: none;
  transition: background-color 0.15s ease;
}
.zd-cell.is-given {
  cursor: default;
}
/* Overlay for the transient marks (Check, wrong-entry hint) so they never
   fight the cell's own background highlight. */
.zd-cell::after {
  content: '';
  position: absolute;
  inset: 0;
  border-radius: inherit;
  pointer-events: none;
  opacity: 0;
}
.zd-cell:focus-visible {
  outline: 3px solid var(--coral);
  outline-offset: -2px;
  z-index: 4;
}

/* Tutorial emphasis, under every other highlight. */
.zd-cell.emph {
  background: color-mix(in srgb, var(--leaf) 26%, var(--cell));
}
.zd-cell.in-unit {
  background: var(--shade);
}
.zd-cell.emph.in-unit {
  background: color-mix(in srgb, var(--leaf) 22%, var(--shade));
}
.zd-cell.is-sel {
  background: color-mix(in srgb, var(--sun) 42%, var(--cell));
  box-shadow: inset 0 0 0 2px var(--sun);
}

/* ---- the piece ---- */

.zd-tile {
  --lift: 0 0 0 0 transparent;
  --ring: 0 0 0 0 transparent;
  position: absolute;
  inset: 7%;
  display: grid;
  place-items: center;
  border-radius: var(--tile-r);
  box-shadow: var(--ring), var(--lift);
  pointer-events: none;
  transform-origin: 50% 85%;
}
.zd-cell:not(.has-tile) > .zd-tile {
  display: none;
}
.zd-tile > svg {
  width: 86%;
  height: 86%;
  display: block;
  overflow: visible;
}
/* Numerals want a touch more breathing room than animals to stay crisp. */
.zd-board[data-skin='numbers'] .zd-tile > svg {
  width: 74%;
  height: 74%;
}

/* Givens: flat tiles printed on the board. */
.zd-cell.is-given > .zd-tile {
  background: var(--given);
  box-shadow: var(--ring), inset 0 -1px 0 color-mix(in srgb, var(--ink) 12%, transparent);
}

/* Entries, and the dragged ghost: raised chunky tiles. */
.zd-cell.is-entry > .zd-tile,
.zd-ghost .zd-tile {
  --lift:
    0 max(2px, calc(var(--cell-px, 40px) * 0.07)) 0 color-mix(in srgb, var(--ink) 34%, transparent),
    inset 0 -2px 0 var(--shade);
  inset: 6% 6% 10%;
  background: color-mix(in srgb, var(--cell) 55%, #fff);
  border: 1px solid color-mix(in srgb, var(--ink) 18%, transparent);
  box-sizing: border-box;
}
/* A player's numerals are teal so they never read as givens. The numeral
   paths carry an ink stroke attribute; a CSS property outranks it. */
.zd-cell.is-entry .zd-n path,
.zd-ghost .zd-n path {
  stroke: var(--bg);
}

/* Every copy of the focused symbol (data-hl on the board, data-d on the
   cell — board.js), and its pencil marks, without a loop in JS. */
.zd-board[data-hl='1'] .zd-cell[data-d='1'],
.zd-board[data-hl='2'] .zd-cell[data-d='2'],
.zd-board[data-hl='3'] .zd-cell[data-d='3'],
.zd-board[data-hl='4'] .zd-cell[data-d='4'],
.zd-board[data-hl='5'] .zd-cell[data-d='5'],
.zd-board[data-hl='6'] .zd-cell[data-d='6'],
.zd-board[data-hl='7'] .zd-cell[data-d='7'],
.zd-board[data-hl='8'] .zd-cell[data-d='8'],
.zd-board[data-hl='9'] .zd-cell[data-d='9'] {
  background: color-mix(in srgb, var(--sun) 34%, var(--cell));
}
.zd-board[data-hl='1'] .zd-cell[data-d='1'] > .zd-tile,
.zd-board[data-hl='2'] .zd-cell[data-d='2'] > .zd-tile,
.zd-board[data-hl='3'] .zd-cell[data-d='3'] > .zd-tile,
.zd-board[data-hl='4'] .zd-cell[data-d='4'] > .zd-tile,
.zd-board[data-hl='5'] .zd-cell[data-d='5'] > .zd-tile,
.zd-board[data-hl='6'] .zd-cell[data-d='6'] > .zd-tile,
.zd-board[data-hl='7'] .zd-cell[data-d='7'] > .zd-tile,
.zd-board[data-hl='8'] .zd-cell[data-d='8'] > .zd-tile,
.zd-board[data-hl='9'] .zd-cell[data-d='9'] > .zd-tile {
  --ring: 0 0 0 2.5px var(--sun);
}
.zd-board[data-hl='1'] .zd-note[data-d='1'].on,
.zd-board[data-hl='2'] .zd-note[data-d='2'].on,
.zd-board[data-hl='3'] .zd-note[data-d='3'].on,
.zd-board[data-hl='4'] .zd-note[data-d='4'].on,
.zd-board[data-hl='5'] .zd-note[data-d='5'].on,
.zd-board[data-hl='6'] .zd-note[data-d='6'].on,
.zd-board[data-hl='7'] .zd-note[data-d='7'].on,
.zd-board[data-hl='8'] .zd-note[data-d='8'].on,
.zd-board[data-hl='9'] .zd-note[data-d='9'].on {
  background: color-mix(in srgb, var(--sun) 60%, transparent);
}

/* Conflict: a red ring on both clashing pieces. More specific than the
   same-symbol ring above, because the reason beats the highlight. */
.zd-board .zd-cell.conflict.has-tile > .zd-tile {
  --ring: 0 0 0 3px var(--bad);
}
.zd-board .zd-cell.conflict.has-tile {
  background: color-mix(in srgb, var(--bad) 14%, var(--cell));
}

/* Check / wrong-entry hint: marked, then fading by itself. */
.zd-cell.wrong::after {
  opacity: 1;
  background: color-mix(in srgb, var(--bad) 24%, transparent);
  box-shadow: inset 0 0 0 3px var(--bad);
  animation: zd-fade 3.2s ease-in forwards;
}

/* Hint overlays. */
.zd-cell.hint-unit {
  background: color-mix(in srgb, var(--sun) 38%, var(--cell));
  animation: zd-glow 1.4s ease-in-out infinite alternate;
}
.zd-board .zd-cell.hint-cause > .zd-tile {
  --ring: 0 0 0 3px var(--coral);
}
.zd-cell.hint-focus {
  box-shadow: inset 0 0 0 3px var(--coral);
  animation: zd-pulse 1.1s ease-in-out infinite alternate;
}

/* Drag feedback. */
.zd-cell.drop-hover {
  background: color-mix(in srgb, var(--leaf) 40%, var(--cell));
  box-shadow: inset 0 0 0 3px var(--leaf);
}
.zd-cell.lifting > .zd-tile {
  opacity: 0.25;
  transform: scale(0.86);
}

/* ---- pencil marks ---- */

.zd-board[data-size='4'] {
  --nc: 2;
  --nr: 2;
}
.zd-board[data-size='6'] {
  --nc: 3;
  --nr: 2;
}
.zd-board[data-size='9'] {
  --nc: 3;
  --nr: 3;
}
.zd-notes {
  position: absolute;
  inset: 6%;
  display: grid;
  grid-template-columns: repeat(var(--nc, 3), minmax(0, 1fr));
  grid-template-rows: repeat(var(--nr, 3), minmax(0, 1fr));
  pointer-events: none;
}
.zd-notes[hidden] {
  display: none;
}
.zd-note {
  display: grid;
  place-items: center;
  min-width: 0;
  min-height: 0;
  border-radius: 30%;
  visibility: hidden;
}
.zd-note.on {
  visibility: visible;
}
.zd-note > svg {
  width: 92%;
  height: 92%;
  display: block;
}

/* ============================================================== motion */

.zd-tile.pop {
  animation: zd-pop 0.24s cubic-bezier(0.3, 1.6, 0.5, 1);
}
.zd-tile.wiggle {
  animation: zd-wiggle 0.45s ease-in-out;
}
.zd-tile.hop {
  animation: zd-hop 0.56s cubic-bezier(0.3, 0.7, 0.4, 1) var(--delay, 0ms) both;
}
/* Animals hop; numbers pop (DESIGN §1, Celebration). */
.zd-board[data-skin='numbers'] .zd-tile.hop {
  animation-name: zd-hop-pop;
}

@keyframes zd-pop {
  0% {
    transform: scale(0.55);
  }
  100% {
    transform: scale(1);
  }
}
@keyframes zd-wiggle {
  0%,
  100% {
    transform: rotate(0);
  }
  20% {
    transform: rotate(-11deg);
  }
  45% {
    transform: rotate(9deg);
  }
  70% {
    transform: rotate(-5deg);
  }
}
@keyframes zd-hop {
  0% {
    transform: translateY(0);
  }
  30% {
    transform: translateY(-34%) scale(1.04, 1.08);
  }
  55% {
    transform: translateY(0) scale(1.1, 0.9);
  }
  75% {
    transform: translateY(-8%);
  }
  100% {
    transform: none;
  }
}
@keyframes zd-hop-pop {
  0% {
    transform: scale(1);
  }
  35% {
    transform: scale(1.28);
  }
  65% {
    transform: scale(0.94);
  }
  100% {
    transform: none;
  }
}
@keyframes zd-fade {
  0%,
  72% {
    opacity: 1;
  }
  100% {
    opacity: 0;
  }
}
@keyframes zd-glow {
  from {
    box-shadow: inset 0 0 0 0 var(--sun);
  }
  to {
    box-shadow: inset 0 0 0 3px var(--sun);
  }
}
@keyframes zd-pulse {
  from {
    box-shadow: inset 0 0 0 2px var(--coral);
  }
  to {
    box-shadow: inset 0 0 0 4px var(--coral);
  }
}

/* ================================================================ ghost */

/* Lives on <body> (input.js), so it uses fallbacks rather than --cell-px. */
.zd-ghost {
  position: fixed;
  left: 0;
  top: 0;
  z-index: 1000;
  pointer-events: none;
  transform-origin: 50% 50%;
  will-change: transform;
}
.zd-ghost[hidden] {
  display: none;
}
.zd-ghost .zd-tile {
  position: absolute;
  inset: 0;
  border-radius: 20%;
  box-shadow:
    0 6px 0 color-mix(in srgb, var(--ink) 30%, transparent),
    0 12px 22px rgba(0, 0, 0, 0.3);
}
.zd-ghost[data-skin='numbers'] .zd-tile > svg {
  width: 74%;
  height: 74%;
}
.zd-ghost.flying {
  transition: transform 0.22s cubic-bezier(0.3, 0.7, 0.4, 1);
}
.zd-ghost.poof {
  transition: opacity 0.2s ease-out;
  opacity: 0;
}

/* ================================================================= coach */

.zd-coach-slot {
  position: relative;
  flex: none;
  height: calc(2.7em + 18px);
  font-size: 15px;
  z-index: 5;
}
.zd-coach {
  position: absolute;
  left: 0;
  right: 0;
  top: 0;
  min-height: 100%;
  box-sizing: border-box;
  padding: 8px 14px;
  display: flex;
  flex-direction: column;
  justify-content: center;
  gap: 8px;
  border-radius: var(--radius);
  background: var(--board);
  color: var(--ink);
  box-shadow:
    0 4px 0 var(--bg-deep),
    0 10px 20px rgba(0, 0, 0, 0.18);
}
.zd-coach.is-empty {
  visibility: hidden;
}
/* The speech-bubble tail points at the board: up when the board is above,
   left when it is beside. */
.zd-coach::before {
  content: '';
  position: absolute;
  top: -8px;
  left: 50%;
  margin-left: -9px;
  border: 9px solid transparent;
  border-top: 0;
  border-bottom-color: var(--board);
}
.zd-play[data-mode='wide'] .zd-coach::before {
  top: 50%;
  left: -8px;
  margin: -9px 0 0;
  border: 9px solid transparent;
  border-left: 0;
  border-right-color: var(--board);
}
.zd-coach-text {
  margin: 0;
  font-weight: 700;
  line-height: 1.3;
}
.zd-coach-actions {
  display: flex;
  gap: 8px;
}
.zd-coach-actions[hidden],
.zd-coach-btn[hidden] {
  display: none;
}
/* One logical pair, one size (hub §2): Show me and Got it are the same box;
   the recommendation is carried by colour. */
.zd-coach-btn {
  flex: 1 1 0;
  max-width: 11em;
  min-height: 40px;
  padding: 0 12px;
  border: 0;
  border-radius: 12px;
  font: inherit;
  font-weight: 800;
  font-size: 0.95em;
  cursor: pointer;
  background: var(--shade);
  color: var(--ink);
  box-shadow: 0 3px 0 color-mix(in srgb, var(--ink) 22%, transparent);
}
.zd-coach-more {
  background: var(--sun);
}
.zd-coach-btn:active {
  transform: translateY(2px);
  box-shadow: 0 1px 0 color-mix(in srgb, var(--ink) 22%, transparent);
}
.zd-coach-btn:focus-visible {
  outline: 3px solid var(--coral);
  outline-offset: 2px;
}

/* ================================================================== tray */

.zd-tray {
  --tile-max: 64px;
  display: grid;
  grid-template-columns: repeat(var(--tray-cols, 9), minmax(0, 1fr));
  gap: 8px;
  width: 100%;
  max-width: calc(var(--tray-cols, 9) * var(--tile-max) + (var(--tray-cols, 9) - 1) * 8px);
  margin-inline: auto;
  padding-bottom: 5px; /* room for the tiles' lip */
}
/* Fewer pieces, bigger pieces: a 4×4 tray on a tablet should not be four
   postage stamps beside a board of 150px cells. Constant per size rather
   than derived from --cell-px, because play.js measures the tray to size
   the board and a tray that followed the board would chase its own tail. */
.zd-play[data-size='4'] .zd-tray {
  --tile-max: 88px;
}
.zd-play[data-size='6'] .zd-tray {
  --tile-max: 76px;
}
.zd-tray-tile {
  position: relative;
  aspect-ratio: 1;
  min-width: 0;
  margin: 0;
  padding: 0;
  border: 0;
  border-radius: var(--radius);
  background: var(--board);
  color: var(--ink);
  font: inherit;
  cursor: grab;
  touch-action: none;
  box-shadow:
    0 5px 0 var(--bg-deep),
    inset 0 -3px 0 var(--shade);
  transition:
    transform 0.15s ease,
    opacity 0.2s ease,
    box-shadow 0.15s ease;
}
.zd-tray-tile > .zd-tile {
  inset: 12%;
}
.zd-tray[data-skin='numbers'] .zd-tray-tile > .zd-tile > svg {
  width: 74%;
  height: 74%;
}
.zd-tray-tile:active {
  transform: translateY(3px);
  box-shadow:
    0 2px 0 var(--bg-deep),
    inset 0 -3px 0 var(--shade);
}
.zd-tray-tile:focus-visible {
  outline: 3px solid var(--sun);
  outline-offset: 3px;
}
/* Tile first: the picked tile stays lifted and glowing until put down. */
.zd-tray-tile.is-picked {
  transform: translateY(-4px);
  box-shadow:
    0 0 0 3px var(--sun),
    0 9px 0 var(--bg-deep),
    0 0 18px 4px color-mix(in srgb, var(--sun) 60%, transparent);
}

.zd-badge {
  position: absolute;
  top: -6px;
  right: -6px;
  min-width: 1.45em;
  height: 1.45em;
  padding: 0 0.3em;
  box-sizing: border-box;
  border-radius: 999px;
  display: grid;
  place-items: center;
  background: var(--ink);
  color: var(--board);
  font-size: 12px;
  font-weight: 800;
  line-height: 1;
  font-variant-numeric: tabular-nums;
  box-shadow: 0 0 0 2px var(--board);
}
.zd-done {
  position: absolute;
  top: -6px;
  right: -6px;
  width: 1.6em;
  height: 1.6em;
  border-radius: 50%;
  display: none;
  place-items: center;
  background: var(--leaf);
  color: var(--ink);
  font-size: 12px;
  box-shadow: 0 0 0 2px var(--board);
}
.zd-done > svg {
  width: 70%;
  height: 70%;
}
/* Settled: all N placed. Dim, tick, still usable (any placement is allowed). */
.zd-tray-tile.is-done > .zd-tile {
  opacity: 0.4;
}
.zd-tray-tile.is-done {
  box-shadow:
    0 2px 0 var(--bg-deep),
    inset 0 -2px 0 var(--shade);
  transform: translateY(3px);
}
.zd-tray-tile.is-done > .zd-badge {
  display: none;
}
.zd-tray-tile.is-done > .zd-done {
  display: grid;
}

/* ================================================================ toolbar */

.zd-tools {
  display: grid;
  grid-template-columns: repeat(5, minmax(0, 1fr));
  gap: 8px;
  width: 100%;
  max-width: 480px;
  margin-inline: auto;
}
.zd-tools[data-count='4'] {
  grid-template-columns: repeat(4, minmax(0, 1fr));
  max-width: 400px;
}
.zd-tool {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 3px;
  min-width: 0;
  min-height: 54px;
  margin: 0;
  padding: 4px 2px;
  border: 0;
  border-radius: 14px;
  font: inherit;
  cursor: pointer;
  color: var(--board);
  background: var(--bg-deep);
  box-shadow:
    0 3px 0 color-mix(in srgb, var(--bg-deep) 60%, #000),
    inset 0 0 0 2px color-mix(in srgb, var(--board) 18%, transparent);
  transition:
    transform 0.1s ease,
    background-color 0.15s ease;
}
.zd-tool:active {
  transform: translateY(2px);
}
.zd-tool:disabled {
  opacity: 0.45;
  cursor: default;
}
.zd-tool:focus-visible {
  outline: 3px solid var(--sun);
  outline-offset: 2px;
}
.zd-tool[aria-pressed='true'] {
  background: var(--sun);
  color: var(--ink);
}
.zd-ico {
  width: 24px;
  height: 24px;
  flex: none;
}
.zd-tool-label {
  font-size: 12.5px;
  font-weight: 800;
  line-height: 1.1;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  max-width: 100%;
}

/* ===================================================== landscape phone */

/*
 * A sideways phone is 300–430px tall (hub §2). play.js already puts the
 * board full height on the left and the controls on the right; this buys
 * back the column's height from control sizes, stopping at 38px because a
 * finger is still the pointer. .is-squeezed is play.js's own signal that
 * the column did not fit beside the board, for any other short viewport.
 */
@media (orientation: landscape) and (max-height: 500px) {
  .zd-side {
    gap: 7px;
  }
  .zd-coach-slot {
    font-size: 13px;
    height: calc(2.6em + 14px);
  }
  .zd-coach {
    padding: 6px 10px;
    gap: 6px;
  }
  .zd-coach-btn {
    min-height: 38px;
  }
  .zd-play[data-size] .zd-tray {
    --tile-max: 52px;
    gap: 6px;
  }
  .zd-tool {
    flex-direction: row;
    gap: 5px;
    min-height: 40px;
  }
  .zd-ico {
    width: 20px;
    height: 20px;
  }
  .zd-tool-label {
    font-size: 11.5px;
  }
}
.zd-play.is-squeezed .zd-side {
  gap: 6px;
}
.zd-play.is-squeezed[data-size] .zd-tray {
  --tile-max: 46px;
  gap: 6px;
}
.zd-play.is-squeezed .zd-tool {
  min-height: 38px;
  flex-direction: row;
  gap: 4px;
}
.zd-play.is-squeezed .zd-tool-label {
  font-size: 11px;
}
.zd-play.is-squeezed .zd-coach-slot {
  font-size: 13px;
  height: calc(2.6em + 12px);
}

.zd-play.is-tight .zd-coach-slot {
  height: 0;
}
.zd-play.is-tight .zd-coach.is-empty {
  display: none;
}

/* ======================================================= reduced motion */

@media (prefers-reduced-motion: reduce) {
  .zd-tile.pop,
  .zd-tile.wiggle,
  .zd-tile.hop,
  .zd-cell.hint-unit,
  .zd-cell.hint-focus {
    animation: none;
  }
  .zd-cell.wrong::after {
    animation: zd-fade 3.2s step-end forwards;
  }
  .zd-ghost.flying {
    transition: none;
  }
}

/*
 * Two languages (hub §2): bokmål labels run longer — "Notater", "Visk ut" —
 * and a sideways phone's tool row lays icon and word side by side, which
 * leaves ~60px a tool and clips them. When the row is that narrow, stack the
 * word under a smaller icon instead: the same 40px, and every word whole.
 * Scoped to landscape, where the row layout lives; portrait already stacks.
 * Specificity matches .zd-play.is-squeezed .zd-tool and comes later, on purpose.
 */
@media (orientation: landscape) {
  .zd-tools {
    container-type: inline-size;
  }
  @container (max-width: 380px) {
    .zd-play .zd-tools .zd-tool {
      flex-direction: column;
      gap: 1px;
    }
    .zd-play .zd-tools .zd-ico {
      width: 18px;
      height: 18px;
    }
  }
}