:root {
  /* Paper, ink and one accent — the same ground the front page stands on. */
  --bg: #f2f1ec;
  --surface: #ffffff;
  --border: #e2e0d8;
  --text: #16161a;
  --text-dim: #6a6862;
  --tile-empty-border: #d9d6cd;
  --tile-filled-border: #b9b5aa;
  --key-bg: #e5e2d9;
  /* Shabda's own palette — teal/amber rather than the familiar green/yellow.
     Deeper here than on the front page: white letters sit on these tiles, and on
     a light ground the brighter versions do not carry enough contrast. */
  --correct: #23907f;
  --present: #c07c2c;
  --absent: #7d7a71;
  --on-colour: #ffffff;      /* type sitting on a filled tile or key */
  --font: "Helvetica Neue", Helvetica, "Segoe UI", system-ui, -apple-system, Arial, sans-serif;
}

* { box-sizing: border-box; }

html, body {
  margin: 0;
  height: 100%;
  background: var(--bg);
  color: var(--text);
  font-family: var(--font);
  overflow: hidden;
  touch-action: manipulation;
  -webkit-font-smoothing: antialiased;
}

body { display: flex; flex-direction: column; }

/* ---------- header ---------- */
.game-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  border-bottom: 1px solid var(--border);
  padding: 10px 14px;
  flex: 0 0 auto;
}

.game-header h1 {
  margin: 0;
  font-size: 24px;
  font-weight: 800;
  letter-spacing: 5px;
  text-transform: uppercase;
}

.brand-link, .icon-btn {
  background: none;
  border: none;
  color: var(--text-dim);
  font-size: 20px;
  line-height: 1;
  cursor: pointer;
  padding: 8px;
  border-radius: 8px;
  text-decoration: none;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 36px;
  min-height: 36px;
}

.brand-link:hover, .icon-btn:hover { background: var(--surface); color: var(--text); }
.header-actions { display: flex; gap: 2px; }

/* ---------- the brand, and the way back ---------- */
.brand-link {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  text-decoration: none;
  padding: 6px 8px;
  font-size: 18px;
}

.brand-link .arrow { color: var(--text-dim); }
.brand-link .brand-mark { width: 21px; height: 21px; }

/* Small beside the game's own name, which is the thing being played right now,
   but on every page so the site has a face wherever you land. */
.brand-name {
  font-size: 14px;
  font-weight: 800;
  letter-spacing: -.02em;
  color: var(--text);
  text-transform: none;
}

.brand-name span { font-weight: 500; color: var(--text-dim); letter-spacing: 0; }

/* A phone has room for the game's name or ours, not both in full. */
@media (max-width: 430px) {
  .brand-name span { display: none; }
  /* The mark is the way home too, so the arrow is what gives way first. */
  .brand-link .arrow { display: none; }
  .brand-link { gap: 6px; padding-left: 4px; }
  .game-header h1 { font-size: 19px; letter-spacing: 2px; }
}

/* ---------- length picker ---------- */
.lengths {
  flex: 0 0 auto;
  display: flex;
  justify-content: center;
  gap: 6px;
  padding: 10px 12px 2px;
}

.len-btn {
  background: transparent;
  border: 1px solid var(--border);
  color: var(--text-dim);
  font-family: inherit;
  font-size: 12.5px;
  font-weight: 700;
  letter-spacing: .4px;
  padding: 7px 15px;
  border-radius: 999px;
  cursor: pointer;
  transition: background .15s ease, color .15s ease, border-color .15s ease;
}

.len-btn:hover { color: var(--text); border-color: #3d4557; }

.len-btn[aria-pressed="true"] {
  background: var(--correct);
  border-color: var(--correct);
  color: var(--on-colour);
}

/* Today's word is the game; the rest is practice. */
.len-btn.today { border-color: var(--tile-filled-border); color: var(--text); }
.len-btn.today[aria-pressed="true"] { border-color: var(--correct); color: var(--on-colour); }

/* ---------- layout ---------- */
.game {
  flex: 1 1 auto;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: space-between;
  padding: 8px 8px 14px;
  overflow: hidden;
  min-height: 0;
}

/* ---------- board ---------- */
/* --cols is set from script when the length changes. */
.board {
  display: grid;
  grid-template-rows: repeat(6, 1fr);
  gap: 5px;
  --cols: 5;
  width: min(calc(var(--cols) * 68px), 94vw);
  height: min(408px, 58vh);
  margin: auto 0;
}

.row {
  display: grid;
  grid-template-columns: repeat(var(--cols), 1fr);
  gap: 5px;
}

.tile {
  display: grid;
  place-items: center;
  border: 2px solid var(--tile-empty-border);
  font-size: clamp(19px, 6vw, 30px);
  font-weight: 700;
  text-transform: uppercase;
  user-select: none;
  color: var(--text);
  background: transparent;
  transition: border-color .1s ease;
}

.tile.filled { border-color: var(--tile-filled-border); animation: pop .1s ease; }

.tile.correct { background: var(--correct); border-color: var(--correct); color: var(--on-colour); }
.tile.present { background: var(--present); border-color: var(--present); color: var(--on-colour); }
.tile.absent  { background: var(--absent);  border-color: var(--absent);  color: var(--on-colour); }

@keyframes pop {
  0%   { transform: scale(.9); }
  100% { transform: scale(1); }
}

/* Flip reveal — the colour class is applied mid-flip by the script. */
.tile.flip { animation: flip .5s ease forwards; }
@keyframes flip {
  0%   { transform: rotateX(0); }
  50%  { transform: rotateX(90deg); }
  100% { transform: rotateX(0); }
}

.row.shake { animation: shake .5s; }
@keyframes shake {
  10%, 90% { transform: translateX(-2px); }
  20%, 80% { transform: translateX(4px); }
  30%, 50%, 70% { transform: translateX(-7px); }
  40%, 60% { transform: translateX(7px); }
}

.tile.bounce { animation: bounce .6s ease; }
@keyframes bounce {
  0%, 20%  { transform: translateY(0); }
  40%      { transform: translateY(-26px); }
  50%      { transform: translateY(4px); }
  60%      { transform: translateY(-14px); }
  80%      { transform: translateY(2px); }
  100%     { transform: translateY(0); }
}

/* ---------- keyboard ---------- */
.keyboard { width: min(500px, 100%); display: flex; flex-direction: column; gap: 7px; flex: 0 0 auto; }
.kb-row { display: flex; gap: 5px; justify-content: center; }
.kb-spacer { flex: .5; }

.key {
  flex: 1;
  min-width: 0;
  height: 54px;
  border: none;
  border-radius: 5px;
  background: var(--key-bg);
  color: var(--text);
  font-family: inherit;
  font-size: 14px;
  font-weight: 700;
  text-transform: uppercase;
  cursor: pointer;
  user-select: none;
  transition: background .15s ease, transform .05s ease;
}

.key:hover  { filter: brightness(1.12); }
.key:active { transform: scale(.94); }
.key.wide   { flex: 1.6; font-size: 12px; }

.key.correct { background: var(--correct); color: var(--on-colour); }
.key.present { background: var(--present); color: var(--on-colour); }
.key.absent  { background: var(--absent);  color: var(--on-colour); }

/* ---------- toast ---------- */
.toast-area {
  position: fixed;
  top: 110px;
  left: 0;
  right: 0;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 8px;
  pointer-events: none;
  z-index: 40;
}

.toast {
  background: var(--text);
  color: var(--bg);
  font-weight: 700;
  font-size: 14px;
  padding: 12px 18px;
  border-radius: 6px;
  animation: fadein .12s ease;
}

.toast.out { opacity: 0; transition: opacity .3s ease; }
@keyframes fadein { from { opacity: 0; transform: translateY(-6px); } to { opacity: 1; } }

/* ---------- modals ---------- */
.modal {
  position: fixed;
  inset: 0;
  background: rgba(22, 22, 26, .45);
  display: grid;
  place-items: center;
  z-index: 50;
  padding: 16px;
}

.modal[hidden] { display: none; }

.modal-card {
  position: relative;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 14px;
  padding: 26px 24px 22px;
  width: min(430px, 100%);
  max-height: 88vh;
  /* Phones report vh as the height with the browser bars hidden, so a card
     sized in vh can hang off both ends of what is really visible. */
  max-height: 88svh;
  overflow-y: auto;
  animation: rise .18s ease;
}

@keyframes rise { from { transform: translateY(14px); opacity: 0; } to { transform: none; opacity: 1; } }

/* The first line of the how-to says what the game is, in one sentence, rather
   than starting straight in on the rules — useful to a player who arrived from
   a link, and it is the line anything quoting the page will take. */
.modal-card .lede {
  color: var(--text);
  font-size: 15.5px;
  line-height: 1.6;
}

.modal-card h2 { margin: 0 0 14px; font-size: 20px; text-transform: uppercase; letter-spacing: 1px; }
.modal-card h3 { margin: 22px 0 12px; font-size: 14px; text-transform: uppercase; letter-spacing: 1px; }
.modal-card p  { color: var(--text-dim); font-size: 14px; line-height: 1.6; margin: 0 0 12px; }
.modal-card p b { color: var(--text); }

.stats-scope { font-size: 13px; margin-top: -6px; }

/* Title and close button ride together in a bar that stays at the top while the
   rest scrolls. On a phone the how-to is twice the height of the screen, and
   before this the way out scrolled off with the text — disappearing at exactly
   the moment someone had read to the end and wanted to start playing. */
.modal-head {
  position: sticky;
  top: 0;
  z-index: 2;
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 12px;
  background: var(--surface);
  border-bottom: 1px solid var(--border);
  padding: 4px 0 12px;
  margin-bottom: 16px;
}

.modal-head h2 { margin: 0; }

/* Padded out to a thumb-sized target rather than a glyph you have to aim at. */
.modal-close {
  flex: 0 0 auto;
  background: none;
  border: none;
  border-radius: 8px;
  margin: -6px -8px 0 0;
  padding: 6px 10px;
  color: var(--text-dim);
  font-size: 26px;
  line-height: 1;
  cursor: pointer;
}

.modal-close:hover { color: var(--text); }

.example { border-top: 1px solid var(--border); padding-top: 14px; margin-top: 14px; }
.ex-row { display: flex; gap: 4px; margin-bottom: 10px; }

.tile.small {
  width: 36px;
  height: 36px;
  font-size: 18px;
  border-width: 2px;
}

.fine { font-size: 12.5px; border-top: 1px solid var(--border); padding-top: 14px; margin-top: 16px; }
.fine.plain { border: 0; padding-top: 0; margin-top: 8px; }

/* stats */
.stat-row { display: flex; gap: 6px; margin-bottom: 6px; }
.stat { flex: 1; text-align: center; }
.stat-num { font-size: 30px; font-weight: 700; }
.stat-lbl { font-size: 11px; color: var(--text-dim); line-height: 1.3; }

.dist { display: flex; flex-direction: column; gap: 5px; }
.dist-row { display: flex; align-items: center; gap: 8px; font-size: 13px; }
.dist-key { width: 10px; color: var(--text-dim); }

.dist-bar {
  background: #e5e2d9;
  color: var(--text);
  font-weight: 700;
  padding: 2px 8px;
  text-align: right;
  min-width: 26px;
  border-radius: 3px;
}

.dist-bar.current { background: var(--correct); color: var(--on-colour); }

.modal-actions { display: flex; gap: 10px; margin-top: 22px; }

.btn {
  flex: 1;
  padding: 13px 16px;
  border-radius: 999px;
  border: 1px solid transparent;
  font-family: inherit;
  font-weight: 700;
  font-size: 14px;
  cursor: pointer;
}

.btn-primary { background: var(--correct); color: var(--on-colour); }
.btn-ghost { background: transparent; border-color: var(--border); color: var(--text); }
.btn:hover { filter: brightness(1.08); }
.btn:disabled { opacity: .45; cursor: default; filter: none; }

@media (max-height: 700px) {
  .key { height: 44px; }
  .game-header h1 { font-size: 20px; }
  .board { height: min(360px, 52vh); }
}

/* The daily sign-off: when the next word arrives. */
.next-up {
  margin: 0;
  flex: 0 0 auto;
  font-size: 12.5px;
  color: var(--text-dim);
}

.next-up b { color: var(--text); font-variant-numeric: tabular-nums; }