/* Tile Link - game-owned pixel-lab skin.
 *
 * Shared geometry comes from the --pixel-* tokens in /assets/css/tokens.css.
 * The Shell pixel.css is not loaded inside the iframe. Every colour, border,
 * shadow and animation below is local to this game: 8px grid, 0 radius,
 * hard 2-3px borders, hard 3-6px offset shadows and no gradients, blurs,
 * glows or translucent glass surfaces.
 */

:root {
  color-scheme: light;

  --tl-grid: var(--pixel-grid-size);
  --tl-border: var(--pixel-border-width);
  --tl-border-thin: var(--pixel-border-thin);
  --tl-shadow-offset: var(--pixel-shadow-offset);
  --tl-shadow-lg: var(--pixel-shadow-offset-lg);
  --tl-font: var(--pixel-ui-font);

  --tl-bg: #fbf7ee;
  --tl-bg-2: #ece7fb;
  --tl-surface: #fffdf8;
  --tl-surface-2: #f1ebfb;
  --tl-ink: #241f3a;
  --tl-muted: #5f5878;
  --tl-line: #241f3a;
  --tl-accent: #6c5ce7;
  --tl-accent-strong: #4e3fc7;
  --tl-accent-soft: #ddd8ff;
  --tl-accent-2: #0c7c7e;
  --tl-accent-2-soft: #cdeeee;
  --tl-danger: #c53d50;
  --tl-danger-soft: #f7d3d8;
  --tl-warning: #a86708;
  --tl-warning-soft: #f7e3bd;
  --tl-success: #177a50;
  --tl-on-accent: #ffffff;
  --tl-shadow: #241f3a;
  --tl-focus: #4e3fc7;
  --tl-scrim: rgba(20, 16, 31, 0.82);

  --tl-board-face: #e7e0f6;
  --tl-board-cell: #f3eefc;
  --tl-scene-opacity: 0.3;

  --tl-sprite-size: 400% 200%;
  --tl-sprite-pos: 0% 0%;
}

[data-theme="dark"] {
  color-scheme: dark;

  --tl-bg: #14101f;
  --tl-bg-2: #1e1732;
  --tl-surface: #241d38;
  --tl-surface-2: #2d2547;
  --tl-ink: #f4f0ff;
  --tl-muted: #b5aed0;
  --tl-line: #f4f0ff;
  --tl-accent: #a99bff;
  --tl-accent-strong: #c8beff;
  --tl-accent-soft: #372c63;
  --tl-accent-2: #5fd6cf;
  --tl-accent-2-soft: #1d3d44;
  --tl-danger: #ff8a9b;
  --tl-danger-soft: #4a2430;
  --tl-warning: #f0c15a;
  --tl-warning-soft: #4a3a18;
  --tl-success: #6bdf9f;
  --tl-on-accent: #14101f;
  --tl-shadow: #07050f;
  --tl-focus: #ffd34e;
  --tl-scrim: rgba(4, 2, 10, 0.86);

  --tl-board-face: #211a3a;
  --tl-board-cell: #2a2246;
  --tl-scene-opacity: 0.44;
}

*,
*::before,
*::after {
  box-sizing: border-box;
}

html,
body {
  width: 100%;
  height: 100%;
  margin: 0;
  overflow: hidden;
  overscroll-behavior: none;
  background: var(--tl-bg);
}

body {
  color: var(--tl-ink);
  font-family: var(--tl-font);
  font-size: 16px;
  line-height: 1.4;
  -webkit-font-smoothing: none;
  text-rendering: optimizeSpeed;
  -webkit-text-size-adjust: 100%;
  -webkit-tap-highlight-color: transparent;
}

button,
select {
  font: inherit;
  color: inherit;
}

button {
  cursor: pointer;
  touch-action: manipulation;
  user-select: none;
}

button:focus-visible,
select:focus-visible {
  outline: var(--tl-border) solid var(--tl-focus);
  outline-offset: 2px;
}

[hidden] {
  display: none !important;
}

/* Fallback sprite positions. game.js replaces them with the values read from
 * game/assets/pixel/tile-link-sprites.json once it loads. */
[data-sprite="hero"] { --tl-sprite-pos: 0% 0%; }
[data-sprite="coin"] { --tl-sprite-pos: 33.333% 0%; }
[data-sprite="hazard"] { --tl-sprite-pos: 66.667% 0%; }
[data-sprite="effect"] { --tl-sprite-pos: 100% 0%; }
[data-sprite="tile"] { --tl-sprite-pos: 0% 100%; }
[data-sprite="card"] { --tl-sprite-pos: 33.333% 100%; }
[data-sprite="star"] { --tl-sprite-pos: 66.667% 100%; }
[data-sprite="orb"] { --tl-sprite-pos: 100% 100%; }

/* App --------------------------------------------------------------------- */

.tl-app {
  position: relative;
  isolation: isolate;
  display: grid;
  width: 100%;
  height: 100vh;
  height: 100dvh;
  min-height: 0;
  grid-template-areas:
    "header"
    "board"
    "controls";
  grid-template-rows: auto minmax(0, 1fr) auto;
  gap: 4px;
  padding: 4px max(4px, min(env(safe-area-inset-right, 0px), 8px))
    4px max(4px, min(env(safe-area-inset-left, 0px), 8px));
  overflow: hidden;
  color: var(--tl-ink);
  background-color: var(--tl-bg);
}

/* Background -------------------------------------------------------------- */

.tl-scene {
  position: absolute;
  z-index: 0;
  inset: 0;
  background-color: var(--tl-bg);
  background-image: url("./assets/tile-link-light.png");
  background-position: center;
  background-size: cover;
  image-rendering: pixelated;
  opacity: var(--tl-scene-opacity);
  pointer-events: none;
}

[data-theme="dark"] .tl-scene {
  background-image: url("./assets/tile-link-dark.png");
}

/* Header ------------------------------------------------------------------ */

.tl-header {
  position: relative;
  z-index: 2;
  grid-area: header;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 4px;
  min-width: 0;
  padding: 4px;
  border: var(--tl-border) solid var(--tl-line);
  background: var(--tl-surface);
  box-shadow: var(--tl-shadow-offset) var(--tl-shadow-offset) 0 var(--tl-shadow);
}

.tl-brand {
  display: flex;
  align-items: center;
  gap: 6px;
  min-width: 0;
}

.tl-brand__mark {
  width: 32px;
  height: 32px;
  flex: none;
  border: var(--tl-border-thin) solid var(--tl-line);
  background-color: var(--tl-accent-soft);
  background-image: url("./assets/pixel/tile-link-sprites.png");
  background-repeat: no-repeat;
  background-size: var(--tl-sprite-size);
  background-position: var(--tl-sprite-pos);
  image-rendering: pixelated;
}

.tl-brand__copy {
  min-width: 0;
}

.tl-brand h1 {
  margin: 0;
  overflow: hidden;
  font-size: 16px;
  font-weight: 700;
  letter-spacing: 0;
  line-height: 1;
  text-overflow: ellipsis;
  text-transform: uppercase;
  white-space: nowrap;
}

.tl-seed {
  display: none;
  margin: 3px 0 0;
  overflow: hidden;
  color: var(--tl-muted);
  font-size: 10px;
  line-height: 1.2;
  text-overflow: ellipsis;
  text-transform: uppercase;
  white-space: nowrap;
}

.tl-chip {
  flex: none;
  padding: 2px 4px;
  border: var(--tl-border-thin) solid var(--tl-line);
  background: var(--tl-accent-soft);
  color: var(--tl-accent-strong);
  font-size: 10px;
  font-weight: 700;
  line-height: 1.1;
  text-transform: uppercase;
  white-space: nowrap;
}

.tl-hud {
  display: flex;
  flex: none;
  align-items: stretch;
  gap: 4px;
  min-width: 0;
}

.tl-stat {
  display: flex;
  flex-direction: column;
  justify-content: center;
  min-width: 42px;
  padding: 2px 4px;
  border: var(--tl-border-thin) solid var(--tl-line);
  background: var(--tl-surface-2);
  line-height: 1;
  text-align: right;
}

.tl-stat__label {
  color: var(--tl-muted);
  font-size: 9px;
  font-weight: 700;
  letter-spacing: 0.04em;
  line-height: 1.1;
  text-transform: uppercase;
}

.tl-stat strong {
  color: var(--tl-ink);
  font-size: 14px;
  font-variant-numeric: tabular-nums;
  line-height: 1.1;
  white-space: nowrap;
}

.tl-stat.is-low {
  background: var(--tl-danger-soft);
}

.tl-stat.is-low strong {
  color: var(--tl-danger);
}

/* Board ------------------------------------------------------------------- */

.tl-board-col {
  position: relative;
  z-index: 1;
  grid-area: board;
  display: flex;
  align-items: stretch;
  justify-content: stretch;
  min-width: 0;
  min-height: 0;
}

.tl-board-frame {
  position: relative;
  display: flex;
  flex: 1 1 auto;
  align-items: center;
  justify-content: center;
  min-width: 0;
  min-height: 0;
  overflow: hidden;
  border: var(--tl-border) solid var(--tl-line);
  background-color: var(--tl-board-face);
  box-shadow:
    inset 0 0 0 var(--tl-border-thin) var(--tl-line),
    var(--tl-shadow-offset) var(--tl-shadow-offset) 0 var(--tl-shadow);
}

.tl-board-wrap {
  position: relative;
  flex: none;
  max-width: 100%;
  max-height: 100%;
}

.tl-board {
  display: grid;
  grid-template-columns: repeat(var(--tl-cols, 10), var(--tl-cell, 32px));
  grid-auto-rows: var(--tl-cell, 32px);
  gap: var(--tl-gap, 2px);
  align-content: center;
  justify-content: center;
}

.tl-row {
  display: contents;
}

.tl-tile {
  position: relative;
  display: grid;
  width: var(--tl-cell, 32px);
  height: var(--tl-cell, 32px);
  padding: 0;
  place-items: center;
  overflow: hidden;
  border: var(--tl-border-thin) solid var(--tl-line);
  border-radius: 0;
  background: var(--tl-surface);
  box-shadow: 2px 2px 0 var(--tl-shadow);
  cursor: pointer;
  touch-action: manipulation;
  -webkit-tap-highlight-color: transparent;
  user-select: none;
  transition:
    transform 80ms steps(2, end),
    box-shadow 80ms steps(2, end),
    background-color 80ms steps(2, end),
    border-color 80ms steps(2, end);
}

.tl-tile:hover {
  background: var(--tl-surface-2);
}

.tl-tile:active {
  transform: translate(2px, 2px);
  box-shadow: 0 0 0 var(--tl-shadow);
}

.tl-tile:focus-visible {
  z-index: 3;
  outline: var(--tl-border) solid var(--tl-focus);
  outline-offset: 2px;
}

.tl-tile__glyph {
  display: block;
  width: 78%;
  height: 78%;
  background-image: url("./assets/pixel/tile-link-sprites.png");
  background-repeat: no-repeat;
  background-size: var(--tl-sprite-size);
  background-position: var(--tl-sprite-pos);
  image-rendering: pixelated;
  pointer-events: none;
}

.tl-tile.is-selected {
  z-index: 2;
  border-color: var(--tl-accent-strong);
  background: var(--tl-accent-soft);
  box-shadow: 3px 3px 0 var(--tl-accent-strong);
  transform: translate(-1px, -1px);
}

.tl-tile.is-hint {
  border-color: var(--tl-warning);
  background: var(--tl-warning-soft);
  animation: tl-hint 1.2s steps(2, end) infinite alternate;
}

.tl-tile.is-invalid {
  border-color: var(--tl-danger);
  background: var(--tl-danger-soft);
  animation: tl-shake 220ms steps(2, end);
}

.tl-tile.is-matched {
  pointer-events: none;
  animation: tl-match 220ms steps(3, end) forwards;
}

.tl-tile[data-empty="true"] {
  visibility: hidden;
  pointer-events: none;
}

/* Link preview ------------------------------------------------------------ */

.tl-link {
  position: absolute;
  z-index: 4;
  overflow: visible;
  pointer-events: none;
  shape-rendering: crispEdges;
}

.tl-link__line {
  fill: none;
  stroke: var(--tl-accent-strong);
  stroke-linecap: butt;
  stroke-linejoin: miter;
}

.tl-link__node {
  fill: var(--tl-accent-strong);
  shape-rendering: crispEdges;
}

.tl-link.is-visible {
  animation: tl-link-in 120ms steps(2, end);
}

/* Banners ----------------------------------------------------------------- */

.tl-banner,
.tl-combo {
  position: absolute;
  z-index: 5;
  left: 50%;
  max-width: calc(100% - 16px);
  padding: 4px 8px;
  border: var(--tl-border-thin) solid var(--tl-line);
  color: var(--tl-ink);
  background: var(--tl-surface);
  box-shadow: 3px 3px 0 var(--tl-shadow);
  font-size: 10px;
  font-weight: 700;
  line-height: 1.3;
  text-align: center;
  text-transform: uppercase;
  transform: translate(-50%, -4px);
  opacity: 0;
  pointer-events: none;
  transition:
    opacity 100ms steps(2, end),
    transform 100ms steps(2, end);
}

.tl-banner {
  top: 6px;
}

.tl-combo {
  bottom: 6px;
  border-color: var(--tl-accent-strong);
  background: var(--tl-accent-soft);
  color: var(--tl-accent-strong);
  transform: translate(-50%, 4px);
}

.tl-banner.is-visible,
.tl-combo.is-visible {
  transform: translate(-50%, 0);
  opacity: 1;
}

/* Controls ---------------------------------------------------------------- */

.tl-controls {
  position: relative;
  z-index: 2;
  grid-area: controls;
  display: flex;
  flex-direction: column;
  gap: 2px;
  min-width: 0;
}

.tl-actions {
  display: grid;
  grid-template-columns: 1.05fr repeat(4, minmax(0, 1fr));
  gap: 4px;
  min-width: 0;
}

.tl-control {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 3px;
  min-width: 0;
  min-height: var(--touch-target-min);
  height: var(--touch-target-min);
  padding: 0 2px;
  border: var(--tl-border-thin) solid var(--tl-line);
  border-radius: 0;
  color: var(--tl-ink);
  background: var(--tl-surface);
  box-shadow: 3px 3px 0 var(--tl-shadow);
  font-size: 11px;
  font-weight: 700;
  line-height: 1;
  text-transform: uppercase;
  white-space: nowrap;
  cursor: pointer;
  touch-action: manipulation;
  -webkit-tap-highlight-color: transparent;
  transition:
    transform 80ms steps(2, end),
    box-shadow 80ms steps(2, end),
    background-color 80ms steps(2, end);
}

.tl-control:hover {
  background: var(--tl-surface-2);
}

.tl-control:active {
  transform: translate(2px, 2px);
  box-shadow: 1px 1px 0 var(--tl-shadow);
}

.tl-control:focus-visible,
.tl-control--select:focus-within {
  outline: var(--tl-border) solid var(--tl-focus);
  outline-offset: 2px;
}

.tl-control__icon {
  width: 18px;
  height: 18px;
  flex: none;
  border: 1px solid var(--tl-line);
  background-color: var(--tl-surface-2);
  background-image: url("./assets/pixel/tile-link-sprites.png");
  background-repeat: no-repeat;
  background-size: var(--tl-sprite-size);
  background-position: var(--tl-sprite-pos);
  image-rendering: pixelated;
}

.tl-control span:not(.tl-control__icon) {
  overflow: hidden;
  text-overflow: ellipsis;
}

.tl-control--select {
  cursor: default;
}

.tl-control--select select {
  width: 100%;
  min-width: 0;
  height: 100%;
  padding: 0;
  border: 0;
  color: var(--tl-ink);
  background: transparent;
  font-size: 11px;
  font-weight: 700;
  text-align: center;
  cursor: pointer;
  appearance: none;
}

.tl-control--select select:focus-visible {
  outline: none;
}

#tl-daily[aria-pressed="true"] {
  border-color: var(--tl-accent-strong);
  background: var(--tl-accent-soft);
  color: var(--tl-accent-strong);
}

.tl-note,
.tl-privacy {
  display: none;
  margin: 0;
  color: var(--tl-muted);
  font-size: 10px;
  line-height: 1.35;
  text-align: center;
}

.tl-privacy {
  color: var(--tl-warning);
}

/* Wide / landscape layout ------------------------------------------------- */

.tl-app[data-layout="wide"] {
  grid-template-areas:
    "board header"
    "board controls";
  grid-template-columns: minmax(0, 1fr) clamp(152px, 25%, 214px);
  grid-template-rows: auto minmax(0, 1fr);
  gap: 6px;
  padding: 6px max(6px, min(env(safe-area-inset-right, 0px), 10px))
    6px max(6px, min(env(safe-area-inset-left, 0px), 10px));
}

.tl-app[data-layout="wide"] .tl-header {
  flex-direction: column;
  align-items: stretch;
  justify-content: flex-start;
  gap: 5px;
  padding: 6px;
}

.tl-app[data-layout="wide"] .tl-brand {
  display: grid;
  grid-template-areas:
    "mark copy"
    "chip chip";
  grid-template-columns: 32px minmax(0, 1fr);
  align-items: center;
  gap: 4px 6px;
}

.tl-app[data-layout="wide"] .tl-brand__mark {
  grid-area: mark;
  width: 32px;
  height: 32px;
}

.tl-app[data-layout="wide"] .tl-brand__copy {
  grid-area: copy;
}

.tl-app[data-layout="wide"] .tl-chip {
  grid-area: chip;
  justify-self: start;
}

.tl-app[data-layout="wide"] .tl-brand h1 {
  font-size: 16px;
}

.tl-app[data-layout="wide"] .tl-seed {
  display: block;
}

.tl-app[data-layout="wide"] .tl-hud {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 3px;
  padding-top: 5px;
  border-top: var(--tl-border-thin) solid var(--tl-line);
}

.tl-app[data-layout="wide"] .tl-stat {
  min-width: 0;
  text-align: left;
}

.tl-app[data-layout="wide"] .tl-actions {
  grid-template-columns: repeat(2, minmax(0, 1fr));
  grid-auto-rows: var(--touch-target-min);
}

.tl-app[data-layout="wide"] .tl-controls {
  justify-content: center;
}

.tl-app[data-layout="wide"] #tl-daily {
  grid-column: span 2;
}

.tl-app[data-layout="wide"] .tl-note {
  display: block;
}

.tl-app[data-layout="wide"] .tl-privacy:not([hidden]) {
  display: block;
}

@media (max-height: 380px) {
  .tl-app[data-layout="wide"] .tl-note,
  .tl-app[data-layout="wide"] .tl-privacy,
  .tl-app[data-layout="wide"] .tl-seed {
    display: none;
  }
}

@media (max-width: 520px) {
  .tl-header {
    gap: 3px;
    padding: 3px;
  }

  .tl-brand {
    gap: 4px;
  }

  .tl-brand__mark {
    width: 28px;
    height: 28px;
  }

  .tl-brand h1 {
    font-size: 14px;
  }

  .tl-chip {
    padding: 1px 3px;
    font-size: 9px;
  }

  .tl-hud {
    gap: 3px;
  }

  .tl-stat {
    min-width: 34px;
    padding: 1px 3px;
  }

  .tl-stat__label {
    font-size: 8px;
  }

  .tl-stat strong {
    font-size: 13px;
  }
}

@media (max-width: 430px) {
  .tl-control {
    flex-direction: column;
    gap: 1px;
    font-size: 10px;
  }

  .tl-control__icon {
    width: 16px;
    height: 16px;
  }

  .tl-control--select select {
    font-size: 10px;
  }
}

/* Dialogs ----------------------------------------------------------------- */

.tl-dialog {
  width: min(360px, calc(100% - 16px));
  max-height: 80dvh;
  padding: 0;
  overflow: hidden;
  border: var(--tl-border) solid var(--tl-line);
  border-radius: 0;
  color: var(--tl-ink);
  background: var(--tl-surface);
  box-shadow: var(--tl-shadow-lg) var(--tl-shadow-lg) 0 var(--tl-shadow);
}

.tl-dialog::backdrop {
  background: var(--tl-scrim);
}

.tl-dialog__body {
  display: flex;
  flex-direction: column;
  gap: 8px;
  max-height: 80dvh;
  padding: 16px;
  overflow-y: auto;
  text-align: center;
}

.tl-dialog h2 {
  margin: 0;
  font-size: 20px;
  line-height: 1.2;
  letter-spacing: 0;
  text-transform: uppercase;
}

.tl-dialog p {
  margin: 0;
  color: var(--tl-muted);
  font-size: 16px;
  line-height: 1.45;
}

.tl-eyebrow {
  color: var(--tl-accent-strong) !important;
  font-size: 11px !important;
  font-weight: 700;
  letter-spacing: 0.06em;
  text-transform: uppercase;
}

.tl-dialog__score {
  color: var(--tl-accent-strong) !important;
  font-size: clamp(2rem, 8vw, 3rem) !important;
  font-weight: 700;
  font-variant-numeric: tabular-nums;
  line-height: 1;
  letter-spacing: 0;
}

.tl-dialog__best {
  margin-top: -4px !important;
  font-size: 14px !important;
}

.tl-result {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 8px;
  margin: 8px 0;
  padding: 8px;
  border: var(--tl-border-thin) solid var(--tl-line);
  border-radius: 0;
  background: var(--tl-surface-2);
}

.tl-result dt {
  color: var(--tl-muted);
  font-size: 10px;
  font-weight: 700;
  text-transform: uppercase;
}

.tl-result dd {
  margin: 3px 0 0;
  font-size: 16px;
  font-weight: 700;
  font-variant-numeric: tabular-nums;
}

.tl-dialog__actions {
  display: flex;
  flex-direction: column;
  gap: 8px;
  margin-top: 8px;
}

.tl-btn {
  min-height: 48px;
  padding: 0 16px;
  border: var(--tl-border) solid var(--tl-line);
  border-radius: 0;
  box-shadow: 3px 3px 0 var(--tl-shadow);
  font-size: 14px;
  font-weight: 700;
  text-transform: uppercase;
  cursor: pointer;
  touch-action: manipulation;
  transition:
    transform 80ms steps(2, end),
    box-shadow 80ms steps(2, end);
}

.tl-btn:active {
  transform: translate(2px, 2px);
  box-shadow: 1px 1px 0 var(--tl-shadow);
}

.tl-btn--primary {
  color: var(--tl-on-accent);
  background: var(--tl-accent);
}

.tl-btn--ghost {
  color: var(--tl-ink);
  background: var(--tl-surface);
}

.tl-btn:focus-visible {
  outline: var(--tl-border) solid var(--tl-focus);
  outline-offset: 2px;
}

/* Utilities --------------------------------------------------------------- */

.tl-sr-only {
  position: absolute !important;
  width: 1px !important;
  height: 1px !important;
  padding: 0 !important;
  overflow: hidden !important;
  clip: rect(0, 0, 0, 0) !important;
  white-space: nowrap !important;
  border: 0 !important;
}

/* Motion ------------------------------------------------------------------ */

@keyframes tl-hint {
  from {
    transform: translateY(0);
  }
  to {
    transform: translateY(-2px);
  }
}

@keyframes tl-shake {
  0%,
  100% {
    transform: translateX(0);
  }
  25% {
    transform: translateX(-2px);
  }
  75% {
    transform: translateX(2px);
  }
}

@keyframes tl-match {
  0% {
    transform: scale(1);
    opacity: 1;
  }
  60% {
    transform: scale(1.08);
    opacity: 1;
  }
  100% {
    transform: scale(0.5);
    opacity: 0;
  }
}

@keyframes tl-link-in {
  from {
    opacity: 0;
  }
  to {
    opacity: 1;
  }
}

@media (prefers-reduced-motion: reduce) {
  .tl-tile.is-hint,
  .tl-tile.is-invalid,
  .tl-tile.is-matched,
  .tl-link.is-visible {
    animation: none;
  }

  .tl-tile.is-invalid {
    box-shadow: 0 0 0 var(--tl-border) var(--tl-danger);
  }

  .tl-tile.is-matched {
    opacity: 0;
  }

  .tl-tile,
  .tl-banner,
  .tl-combo,
  .tl-control,
  .tl-btn {
    transition: none;
  }
}

.tl-app[data-motion="reduce"] .tl-tile.is-hint,
.tl-app[data-motion="reduce"] .tl-tile.is-invalid,
.tl-app[data-motion="reduce"] .tl-tile.is-matched,
.tl-app[data-motion="reduce"] .tl-link.is-visible {
  animation: none;
}

.tl-app[data-motion="reduce"] .tl-tile.is-matched {
  opacity: 0;
}