/* ============================================================
   Riftle — game components

   The design system (tokens, texture, the pen, the reveal engine)
   is loaded first from /style.css and is NOT repeated here. This
   file holds only what the game itself adds.

   See STYLE-GUIDE.md at the repo root before changing anything
   visual, and add new values as tokens rather than literals.
   ============================================================ */

/* --- 15. Game tokens ------------------------------------- */

:root {
  --hit:      #2b7d58;
  --hit-ink:  #fbf7ef;
  --near:     #b5822b;
  --near-ink: #fbf7ef;
  --miss:     #b2a693;
  --miss-ink: #fbf7ef;

  /* The tile outline and the tile fill: the same hand-drawn shape,
     once as a stroke and once solid. Used as masks, so both take
     their colour from the element and theme correctly. */
  --tile-edge: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 100 100' preserveAspectRatio='none'%3E%3Cpath d='M9 5 C 32 3 68 3 92 6 C 96 25 97 71 94 93 C 71 97 32 97 7 94 C 4 71 3 26 9 5 Z' fill='none' stroke='%23000' stroke-width='2.6' stroke-linejoin='round'/%3E%3C/svg%3E");
  --tile-body: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 100 100' preserveAspectRatio='none'%3E%3Cpath d='M9 5 C 32 3 68 3 92 6 C 96 25 97 71 94 93 C 71 97 32 97 7 94 C 4 71 3 26 9 5 Z' fill='%23000'/%3E%3C/svg%3E");
}

:root[data-theme="dark"] {
  --hit:      #3d8a63;
  --hit-ink:  #f4efe4;
  --near:     #96701f;
  --near-ink: #f4efe4;
  --miss:     #4a4234;
  --miss-ink: #b3a996;
}

/* --- 16. Mode switch ------------------------------------- */

.modes {
  display: flex;
  gap: var(--space-sm);
  margin-bottom: var(--space-md);
}

.mode {
  background: none;
  border: 0;
  padding: 0 0 0.1em;
  cursor: pointer;
  position: relative;
  font-family: var(--font-hand);
  font-size: var(--size-hand);
  font-weight: 600;
  line-height: 1.2;
  color: var(--ink-faint);
  transition: color var(--dur) var(--ease);
}

.mode::after {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  bottom: -0.24em;
  height: 6px;
  background: var(--accent);
  -webkit-mask-image: var(--wave-mask);
  mask-image: var(--wave-mask);
  -webkit-mask-repeat: repeat-x;
  mask-repeat: repeat-x;
  -webkit-mask-size: 40px 6px;
  mask-size: 40px 6px;
  transform: scaleX(0);
  transform-origin: left;
  transition: transform var(--dur) var(--ease-expo);
}

.mode:hover { color: var(--accent); }
.mode[aria-pressed="true"] { color: var(--ink); }
.mode[aria-pressed="true"]::after { transform: scaleX(1); }

/* --- 17. The board --------------------------------------- */

.board {
  display: grid;
  gap: 0.45rem;
  width: min(21rem, 100%);
  margin: 0 auto;
}

.row {
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  gap: 0.45rem;
}

.tile {
  position: relative;
  aspect-ratio: 1;
  display: grid;
  place-items: center;
}

/* The outline — a drawn rectangle, never a border */
.tile::before {
  content: "";
  position: absolute;
  inset: 0;
  background: var(--rule);
  -webkit-mask-image: var(--tile-edge);
  mask-image: var(--tile-edge);
  -webkit-mask-size: 100% 100%;
  mask-size: 100% 100%;
  transition: background var(--dur) var(--ease), opacity var(--dur) var(--ease);
}

/* The fill — the same shape, solid, faded in on reveal */
.tile::after {
  content: "";
  position: absolute;
  inset: 0;
  background: var(--miss);
  -webkit-mask-image: var(--tile-body);
  mask-image: var(--tile-body);
  -webkit-mask-size: 100% 100%;
  mask-size: 100% 100%;
  opacity: 0;
}

.tile__letter {
  position: relative;
  z-index: 2;
  font-family: var(--font-display);
  font-optical-sizing: auto;
  font-variation-settings: "SOFT" 100, "WONK" 1;
  font-size: clamp(1.4rem, 6.2vw, 2rem);
  font-weight: 500;
  line-height: 1;
  color: var(--ink);
  transition: color var(--dur) var(--ease);
}

.tile[data-state="typed"]::before { background: var(--rule-strong); }

.tile[data-state="hit"]::after  { background: var(--hit);  opacity: 1; }
.tile[data-state="near"]::after { background: var(--near); opacity: 1; }
.tile[data-state="miss"]::after { background: var(--miss); opacity: 1; }

.tile[data-state="hit"]::before,
.tile[data-state="near"]::before,
.tile[data-state="miss"]::before { opacity: 0; }

.tile[data-state="hit"]  .tile__letter { color: var(--hit-ink); }
.tile[data-state="near"] .tile__letter { color: var(--near-ink); }
.tile[data-state="miss"] .tile__letter { color: var(--miss-ink); }

/* --- 18. Board motion ------------------------------------ */

.tile.is-typed .tile__letter { animation: letter-land 200ms var(--ease-bounce); }

@keyframes letter-land {
  0%   { transform: scale(0.72) rotate(-5deg); opacity: 0.4; }
  100% { transform: none; opacity: 1; }
}

.tile.is-settling::after { animation: tile-settle 440ms var(--ease-bounce); }

@keyframes tile-settle {
  0%   { transform: scale(0.8) rotate(-3deg); opacity: 0; }
  55%  { transform: scale(1.07) rotate(1.5deg); opacity: 1; }
  100% { transform: none; opacity: 1; }
}

.row.is-wrong { animation: row-shake 420ms var(--ease); }

@keyframes row-shake {
  15%, 85% { transform: translateX(-4px) rotate(-0.5deg); }
  35%, 65% { transform: translateX(6px) rotate(0.6deg); }
  50%      { transform: translateX(-6px); }
}

.row.is-won .tile { animation: tile-cheer 560ms var(--ease-bounce) both; }
.row.is-won .tile:nth-child(1) { animation-delay: 0ms; }
.row.is-won .tile:nth-child(2) { animation-delay: 80ms; }
.row.is-won .tile:nth-child(3) { animation-delay: 160ms; }
.row.is-won .tile:nth-child(4) { animation-delay: 240ms; }
.row.is-won .tile:nth-child(5) { animation-delay: 320ms; }

@keyframes tile-cheer {
  0%   { transform: none; }
  40%  { transform: translateY(-12px) rotate(-3deg); }
  70%  { transform: translateY(2px) rotate(1deg); }
  100% { transform: none; }
}

/* --- 19. Message ----------------------------------------- */

.msg {
  min-height: 1.9em;
  margin-top: var(--space-xs);
  text-align: center;
  font-family: var(--font-hand);
  font-size: var(--size-hand);
  line-height: 1.2;
  color: var(--ink-muted);
}

.msg:empty { color: transparent; }

/* --- 20. Keyboard ---------------------------------------- */

.keyboard {
  width: min(28rem, 100%);
  margin: var(--space-sm) auto 0;
  display: grid;
  gap: 0.3rem;
}

.krow {
  display: flex;
  gap: 0.3rem;
  justify-content: center;
}

.key {
  flex: 1 1 0;
  min-width: 0;
  padding: 0.75rem 0.1rem;
  border: 0;
  border-radius: 10px 13px 9px 12px;
  background: var(--paper-warm);
  color: var(--ink);
  cursor: pointer;
  font-family: var(--font-display);
  font-optical-sizing: auto;
  font-variation-settings: "SOFT" 100, "WONK" 1;
  font-size: 1rem;
  font-weight: 500;
  line-height: 1;
  transition: background var(--dur) var(--ease), color var(--dur) var(--ease),
              transform var(--dur-fast) var(--ease-bounce);
}

.key:hover { transform: translateY(-2px) rotate(-1.5deg); }
.key:active { transform: translateY(1px); }

.key--wide {
  flex: 1.9 1 0;
  font-family: var(--font-hand);
  font-size: var(--size-hand-sm);
  font-weight: 600;
}

.key[data-state="hit"]  { background: var(--hit);  color: var(--hit-ink); }
.key[data-state="near"] { background: var(--near); color: var(--near-ink); }
.key[data-state="miss"] { background: var(--miss); color: var(--miss-ink); }

/* --- 21. Result panel ------------------------------------ */

.result {
  margin: var(--space-md) auto 0;
  width: min(28rem, 100%);
  padding: var(--space-sm) var(--space-sm) var(--space-md);
  background: var(--paper-sunk);
  border-radius: var(--radius-blob);
  text-align: center;
  animation: settle-in var(--dur-slow) var(--ease-expo) both;
}

@keyframes settle-in {
  from { opacity: 0; transform: translateY(12px); }
  to   { opacity: 1; transform: none; }
}

.result__verdict {
  font-family: var(--font-hand);
  font-size: var(--size-hand);
  color: var(--ink-muted);
}

.result__word {
  font-family: var(--font-display);
  font-optical-sizing: auto;
  font-variation-settings: "SOFT" 100, "WONK" 1;
  font-size: clamp(2rem, 8vw, 2.75rem);
  font-weight: 500;
  line-height: 1.1;
  color: var(--accent);
  margin: var(--space-2xs) 0;
}

.result__gloss {
  font-style: italic;
  color: var(--ink-muted);
  line-height: var(--leading-snug);
  max-width: 22rem;
  margin: 0 auto var(--space-sm);
}

.result__actions {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-xs);
  justify-content: center;
}

.result__next {
  margin-top: var(--space-sm);
  font-family: var(--font-hand);
  font-size: var(--size-hand-sm);
  color: var(--ink-faint);
}

/* --- 22. Buttons ----------------------------------------- */

.btn {
  border: 0;
  cursor: pointer;
  padding: 0.45em 1.1em;
  border-radius: 16px 20px 15px 22px;
  background: var(--accent);
  color: var(--paper);
  font-family: var(--font-hand);
  font-size: var(--size-hand-sm);
  font-weight: 600;
  line-height: 1.3;
  transition: transform var(--dur) var(--ease-bounce), opacity var(--dur) var(--ease);
}

:root[data-theme="dark"] .btn { color: var(--paper); }

.btn:hover { transform: rotate(-1.5deg) scale(1.04); }

.btn--quiet {
  background: transparent;
  color: var(--ink-muted);
  box-shadow: inset 0 0 0 0 transparent;
}

.btn--quiet:hover { color: var(--accent); }

/* --- 23. Stats ------------------------------------------- */

.tally { margin-top: var(--space-lg); }

.stats {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: var(--space-xs);
  margin: var(--space-sm) 0 var(--space-md);
}

.stat { text-align: center; }

.stat__num {
  font-family: var(--font-display);
  font-optical-sizing: auto;
  font-variation-settings: "SOFT" 100, "WONK" 1;
  font-size: 1.75rem;
  font-weight: 500;
  line-height: 1.1;
  display: block;
}

.stat__label {
  font-family: var(--font-hand);
  font-size: var(--size-hand-sm);
  line-height: 1.2;
  color: var(--ink-muted);
}

.dist { display: grid; gap: 0.3rem; max-width: 24rem; }

.dist__row {
  display: grid;
  grid-template-columns: 1.1rem 1fr;
  align-items: center;
  gap: var(--space-2xs);
  font-family: var(--font-hand);
  font-size: var(--size-hand-sm);
  color: var(--ink-muted);
}

.dist__bar {
  height: 1.5rem;
  min-width: 1.6rem;
  display: flex;
  align-items: center;
  justify-content: flex-end;
  padding-right: 0.45em;
  border-radius: 7px 10px 6px 11px;
  background: var(--paper-sunk);
  color: var(--ink-muted);
  transition: width var(--dur-slow) var(--ease-expo);
}

.dist__row.is-latest .dist__bar { background: var(--accent); color: var(--paper); }

/* --- 24. How to play, colophon extras -------------------- */

.howto {
  margin-top: var(--space-lg);
  max-width: var(--measure);
}

.howto > summary {
  cursor: pointer;
  list-style: none;
  font-family: var(--font-hand);
  font-size: var(--size-hand);
  font-weight: 600;
  color: var(--ink-muted);
  transition: color var(--dur) var(--ease);
}

.howto > summary::-webkit-details-marker { display: none; }
.howto > summary:hover { color: var(--accent); }
.howto > summary::before { content: "✎ "; color: var(--ink-faint); }
.howto[open] > summary::before { content: "✓ "; color: var(--accent); }

.howto p { margin-top: var(--space-xs); line-height: var(--leading-loose); }

.swatch {
  display: inline-block;
  width: 0.85em;
  height: 0.85em;
  border-radius: 4px 6px 3px 7px;
  vertical-align: -0.06em;
}

.swatch--hit  { background: var(--hit); }
.swatch--near { background: var(--near); }
.swatch--miss { background: var(--miss); }

.colophon__data {
  display: flex;
  gap: var(--space-xs);
  align-items: center;
}

.colophon__data button,
.colophon__data label {
  background: none;
  border: 0;
  padding: 0;
  cursor: pointer;
  font: inherit;
  color: var(--ink-muted);
  transition: color var(--dur) var(--ease);
}

.colophon__data button:hover,
.colophon__data label:hover { color: var(--accent); }

.visually-hidden {
  position: absolute;
  width: 1px;
  height: 1px;
  overflow: hidden;
  clip: rect(0 0 0 0);
  clip-path: inset(50%);
  white-space: nowrap;
}

/* --- 25. Game motion, reduced ---------------------------- */

@media (prefers-reduced-motion: reduce) {
  .tile.is-settling::after,
  .tile.is-typed .tile__letter,
  .row.is-won .tile,
  .row.is-wrong { animation: none !important; }

  .result { animation: none; opacity: 1; transform: none; }
  .key:hover, .btn:hover { transform: none; }
}

/* --- 26. Narrow viewports -------------------------------- */

@media (max-width: 26rem) {
  .board { gap: 0.35rem; }
  .row { gap: 0.35rem; }
  .key { padding: 0.7rem 0.05rem; font-size: 0.9375rem; }
  .stats { grid-template-columns: repeat(2, 1fr); row-gap: var(--space-sm); }
}