/* ==========================================================================
   Grandma Fecher's Games
   Designed for an 11" tablet in landscape, for a player with left-side
   visual neglect: everything lives in a column on the RIGHT half of the
   screen, every block gets a purple stripe on its left edge as a "start
   reading here" anchor, and every target is enormous.
   ========================================================================== */

:root {
  --cream:  #F8F6F0;
  --ink:    #010102;
  --purple: #8E0DD1;
  --purple-light: #AF51F1;
  --plum:   #68248C;
  --green:  #1B7A3D;
  --green-bg: #E4F4E9;
  --amber-bg: #FDF1DC;
  --amber:  #9A6209;
  --shadow: 0 6px 0 rgba(1,1,2,.14);

  /* The left gutter she may not see. Nothing important goes here. */
  --gutter-left: 28vw;
  --gutter-right: 5vw;
}

* { box-sizing: border-box; -webkit-tap-highlight-color: transparent; }

/* No double-tap zoom, no 300ms delay — a slow or shaky tap still counts. */
button { touch-action: manipulation; }

/* Several things below set `display`, which would otherwise beat the
   `hidden` attribute we toggle from JS. */
[hidden] { display: none !important; }

html, body {
  margin: 0;
  padding: 0;
  height: 100%;
  background: var(--cream);
  color: var(--ink);
  font-family: Inter, "Helvetica Neue", Roboto, "Segoe UI", system-ui, sans-serif;
  font-size: 20px;
  line-height: 1.35;
  -webkit-font-smoothing: antialiased;
  overscroll-behavior: none;
}

body { user-select: none; }

/* ---------- Screens ---------- */
.screen { display: none; min-height: 100%; padding: 2vh 0 4vh; }
.screen.is-active { display: block; animation: fade .25s ease both; }
@keyframes fade { from { opacity: 0; transform: translateY(8px);} to { opacity:1; transform:none; } }

/* ---------- The one true content column: pushed to the right ---------- */
.col {
  width: auto;
  margin-left: var(--gutter-left);
  margin-right: var(--gutter-right);
  max-width: 900px;
}

/* ---------- Home ---------- */
.greeting {
  font-size: clamp(22px, 3.4vh, 30px);
  color: var(--plum);
  margin: 0 0 2px;
  font-weight: 600;
}
.home-title {
  font-size: clamp(34px, 5.6vh, 52px);
  font-weight: 700;
  letter-spacing: -0.02em;
  margin: 0 0 clamp(12px, 2vh, 18px);
}

/* Five game buttons scale with the screen height rather than scrolling —
   scrolling to reach a game is exactly what she should never have to do. */
#screen-home { padding-bottom: 8px; }
#screen-home .big-btn {
  min-height: clamp(76px, 11vh, 96px);
  margin-bottom: clamp(8px, 1.5vh, 14px);
  padding-top: 10px;
  padding-bottom: 10px;
}
#screen-home .big-btn small { margin-top: 2px; }

/* ---------- The big buttons ---------- */
.big-btn {
  display: flex;
  align-items: center;
  gap: 20px;
  width: 100%;
  min-height: 104px;
  margin: 0 0 20px;
  padding: 16px 26px;
  border: 3px solid var(--ink);
  border-left: 14px solid var(--purple);   /* left anchor cue */
  border-radius: 18px;
  background: #fff;
  color: var(--ink);
  font: inherit;
  font-size: 34px;
  font-weight: 600;
  text-align: left;
  box-shadow: var(--shadow);
  cursor: pointer;
  transition: transform .08s ease, background .12s ease;
}
.big-btn:active { transform: translateY(4px); box-shadow: none; background: #F1E8F8; }
.big-btn .btn-icon { font-size: 42px; line-height: 1; flex: 0 0 auto; }
.big-btn .btn-text { display: flex; flex-direction: column; flex: 1 1 auto; }
.big-btn small { font-size: 21px; font-weight: 400; color: #5A5560; margin-top: 4px; }

.btn-quiet { background: transparent; box-shadow: none; border-color: #C9C3BA; border-left-color: var(--purple-light); }

/* The game she played last wears its own "Keep playing" badge, on the right
   where she'll see it, instead of taking up a sixth button. */
.big-btn.is-last { border-color: var(--purple); }
.big-btn.is-last::after {
  content: '▶ Keep playing';
  flex: 0 0 auto;
  padding: 8px 16px;
  border-radius: 30px;
  background: var(--purple);
  color: #fff;
  font-size: 20px;
  font-weight: 700;
  white-space: nowrap;
}

.next-btn {
  justify-content: space-between;
  background: var(--purple);
  color: #fff;
  border-left-color: var(--purple-light);
  animation: pop .25s ease both;
}
@keyframes pop { from { opacity:0; transform: scale(.96);} to {opacity:1; transform:none;} }

/* ---------- Top bar (controls live on the RIGHT) ---------- */
.topbar {
  display: flex;
  justify-content: flex-end;
  align-items: center;
  gap: 16px;
  padding: 0 var(--gutter-right) 10px 0;
}
.home-top { padding-bottom: 6px; }
.icon-btn {
  width: 68px; height: 68px;
  border: 3px solid var(--ink);
  border-radius: 50%;
  background: #fff;
  font-size: 30px;
  line-height: 1;
  cursor: pointer;
  box-shadow: var(--shadow);
}
.icon-btn:active { transform: translateY(4px); box-shadow: none; }

/* Chips: the star count, and the current level. */
.chip {
  display: flex; align-items: center; gap: 8px;
  min-height: 64px;
  font: inherit;
  font-size: 28px; font-weight: 700;
  padding: 8px 20px;
  border-radius: 40px;
  border: 3px solid transparent;
  color: var(--ink);
}
.star-chip { background: var(--amber-bg); border-color: #E8C98A; }
.star-chip.bump { animation: bump .45s ease; }
@keyframes bump { 0%,100%{transform:none} 35%{transform:scale(1.22) rotate(-4deg)} }
button.star-chip { cursor: pointer; box-shadow: var(--shadow); }
button.star-chip:active { transform: translateY(4px); box-shadow: none; }
.level-chip { background: #F1E8F8; border-color: #D9C2EC; color: var(--plum); font-size: 23px; letter-spacing: .04em; }

/* Difficulty picker: three fat segments, the chosen one filled purple. */
.seg-label { font-size: 22px; font-weight: 600; color: var(--plum); margin-right: -4px; }
.seg {
  display: flex;
  border: 3px solid var(--ink);
  border-radius: 40px;
  overflow: hidden;
  background: #fff;
  box-shadow: var(--shadow);
}
.seg-btn {
  min-width: 128px;
  min-height: 64px;
  padding: 0 20px;
  border: 0;
  background: transparent;
  font: inherit;
  font-size: 24px;
  font-weight: 600;
  color: var(--ink);
  cursor: pointer;
}
.seg-btn + .seg-btn { border-left: 3px solid var(--ink); }
.seg-btn:active { background: #F1E8F8; }
.seg-btn.is-active { background: var(--purple); color: #fff; }

/* ---------- Question card ---------- */
.col-game { padding-bottom: 8px; }
.card {
  background: #fff;
  border: 3px solid var(--ink);
  border-left: 14px solid var(--purple);
  border-radius: 18px;
  padding: 20px 28px 18px;
  margin-bottom: 18px;
  box-shadow: var(--shadow);
  transition: padding .35s ease;
}
.q-cat {
  margin: 0 0 8px;
  font-size: 19px;
  font-weight: 700;
  letter-spacing: .12em;
  text-transform: uppercase;
  color: var(--plum);
}
.q-text {
  margin: 0 0 16px;
  font-size: 40px;
  font-weight: 600;
  line-height: 1.25;
  transition: font-size .35s ease, margin .35s ease;
}
.speak-btn {
  border: 2px solid #C9C3BA;
  background: var(--cream);
  border-radius: 40px;
  padding: 10px 22px;
  font: inherit;
  font-size: 22px;
  cursor: pointer;
}
.speak-btn:active { background: #EFE7DA; }
.speak-btn.speaking { border-color: var(--purple); color: var(--purple); }

/* Once answered, the question steps back to make room for the answer, the
   fun fact and the Next button — all without scrolling. */
.card.answered { padding-top: 16px; padding-bottom: 16px; }
.card.answered .q-text { font-size: 30px; margin-bottom: 0; }
.card.answered .speak-btn { display: none; }

/* ---------- Choices ---------- */
.choices { display: flex; flex-direction: column; }
.choice {
  display: flex;
  align-items: center;
  gap: 22px;
  width: 100%;
  min-height: 96px;
  margin: 0 0 14px;
  padding: 14px 24px;
  border: 3px solid var(--ink);
  border-left: 14px solid var(--purple-light);
  border-radius: 18px;
  background: #fff;
  color: var(--ink);
  font: inherit;
  font-size: 34px;
  font-weight: 600;
  text-align: left;
  box-shadow: var(--shadow);
  cursor: pointer;
  overflow: hidden;
  max-height: 300px;
  transition: transform .08s ease, max-height .4s ease, min-height .4s ease,
              opacity .3s ease, margin .4s ease, padding .4s ease, border-width .4s ease;
}
.choice:active { transform: translateY(4px); box-shadow: none; }

/* Four choices (Which Decade?) sit a little tighter so they still fit. */
.choices.four .choice { min-height: 84px; margin-bottom: 12px; padding-top: 10px; padding-bottom: 10px; }

/* Once she has answered, the choices fold away so the fun fact and the Next
   button fit on screen without any scrolling. */
.choice.gone {
  max-height: 0;
  min-height: 0;     /* must be reset too — min-height beats max-height */
  margin-bottom: 0;
  padding-top: 0;
  padding-bottom: 0;
  border-top-width: 0;
  border-bottom-width: 0;
  opacity: 0;
  box-shadow: none;
}
.choice .num {
  flex: 0 0 auto;
  width: 52px; height: 52px;
  display: grid; place-items: center;
  border-radius: 50%;
  background: #F1E8F8;
  color: var(--plum);
  font-size: 26px;
  font-weight: 700;
}
.choice .mark { margin-left: auto; font-size: 38px; }

.choice.correct {
  background: var(--green-bg);
  border-color: var(--green);
  border-left-color: var(--green);
  animation: bump .5s ease;
}
.choice.correct .num { background: var(--green); color: #fff; }
.choice.wrong { background: #F4F1EC; border-color: #B8B2A8; border-left-color: #B8B2A8; opacity: .75; }
.choice.wrong .num { background: #E2DDD4; color: #6B6560; }
.choices.locked .choice { pointer-events: none; }

/* ---------- Crossword ---------- */
.squares {
  display: flex;
  gap: 8px;
  margin: 0 0 14px;
  --sq: clamp(60px, 9.6vh, 84px);
}
.squares.long { --sq: clamp(52px, 7.6vh, 70px); }
.square {
  width: var(--sq);
  height: var(--sq);
  flex: 0 0 auto;
  border: 3px solid var(--ink);
  border-radius: 10px;
  background: #fff;
  color: var(--ink);
  font: inherit;
  font-size: calc(var(--sq) * .56);
  font-weight: 700;
  line-height: 1;
  cursor: pointer;
  box-shadow: var(--shadow);
  padding: 0;
}
.square:first-child { border-left: 12px solid var(--purple); }
.square.cursor { background: #F1E8F8; border-color: var(--purple); }
.square.given { background: var(--cream); color: var(--plum); }
.square.locked { color: var(--green); }
.square.solved { background: var(--green-bg); border-color: var(--green); color: var(--green); }
.square.solved:first-child { border-left-color: var(--green); }
.square.oops { background: var(--amber-bg); border-color: var(--amber); color: var(--amber); animation: wiggle .45s ease; }
@keyframes wiggle { 0%,100% { transform: none; } 25% { transform: translateX(-4px); } 75% { transform: translateX(4px); } }

.w-note {
  min-height: 34px;
  margin: 0 0 8px;
  font-size: 26px;
  font-weight: 600;
  color: var(--amber);
}
.tiles {
  display: grid;
  grid-template-columns: repeat(7, minmax(0, 1fr));
  gap: 12px;
  margin: 0 0 16px;
}
.tile {
  height: clamp(66px, 10vh, 84px);
  border: 3px solid var(--ink);
  border-radius: 14px;
  background: #fff;
  color: var(--ink);
  font: inherit;
  font-size: clamp(34px, 5vh, 42px);
  font-weight: 700;
  cursor: pointer;
  box-shadow: var(--shadow);
}
.tile:active { transform: translateY(4px); box-shadow: none; background: #F1E8F8; }
.tile.used { background: transparent; border: 3px dashed #D6D0C6; box-shadow: none; cursor: default; }

.w-actions { display: flex; gap: 14px; flex-wrap: wrap; }
.act-btn {
  min-height: 64px;
  padding: 0 24px;
  border: 3px solid var(--ink);
  border-radius: 40px;
  background: #fff;
  color: var(--ink);
  font: inherit;
  font-size: 24px;
  font-weight: 600;
  cursor: pointer;
  box-shadow: var(--shadow);
}
.act-btn:active { transform: translateY(4px); box-shadow: none; }
.act-btn:disabled { opacity: .4; box-shadow: none; cursor: default; }
.act-reveal { border-color: var(--amber); color: var(--amber); background: var(--amber-bg); }

/* ---------- Feedback ---------- */
.feedback {
  border-left: 14px solid var(--green);
  background: var(--green-bg);
  border-radius: 14px;
  padding: 18px 24px;
  margin-bottom: 22px;
  animation: fade .25s ease both;
}
.feedback.try { border-left-color: var(--amber); background: var(--amber-bg); }
.fb-head { margin: 0 0 4px; font-size: 30px; font-weight: 700; color: var(--green); }
.feedback.try .fb-head { color: var(--amber); }
.fb-answer { margin: 0 0 8px; font-size: 36px; font-weight: 700; line-height: 1.2; }
.fb-answer:empty { display: none; }
.fb-fact { margin: 0; font-size: 25px; line-height: 1.35; }

/* ---------- My Stars ---------- */
.kid-cards { display: flex; flex-direction: column; gap: 18px; margin-bottom: 24px; }
.kid {
  display: flex; align-items: center; gap: 20px;
  background: #fff;
  border: 3px solid var(--ink);
  border-left: 14px solid var(--purple);
  border-radius: 18px;
  padding: 18px 26px;
  box-shadow: var(--shadow);
}
.kid-name { font-size: 36px; font-weight: 700; }
.kid-sub { font-size: 20px; color: #5A5560; }
.kid-stars { margin-left: auto; font-size: 34px; font-weight: 700; white-space: nowrap; }
.stars-note { font-size: 25px; color: var(--plum); font-weight: 600; }

/* ---------- Modal (celebrations, level offers) ---------- */
.modal {
  position: fixed; inset: 0;
  background: rgba(1,1,2,.72);
  display: grid; place-items: center;
  z-index: 50;
  animation: fade .2s ease both;
}
.modal-inner {
  width: min(720px, 74vw);
  margin-left: 12vw;              /* keep it off the neglected edge */
  background: var(--cream);
  border: 4px solid var(--purple);
  border-radius: 24px;
  padding: 30px 38px 26px;
  text-align: center;
}
.modal-icon { font-size: 88px; line-height: 1; animation: spinpop .7s ease both; }
@keyframes spinpop { from { transform: scale(.2) rotate(-40deg); opacity: 0; } to { transform: none; opacity: 1; } }
.modal-msg { font-size: 34px; font-weight: 600; margin: 10px 0 24px; }
.modal .big-btn { justify-content: center; }
.modal-yes { background: var(--purple); color: #fff; margin-bottom: 14px; }
.modal-no { margin-bottom: 0; font-size: 28px; min-height: 84px; }

/* ---------- Toast ---------- */
.toast {
  position: fixed;
  right: 3vw; bottom: 4vh;
  background: var(--ink);
  color: #fff;
  font-size: 27px;
  font-weight: 600;
  padding: 16px 28px;
  border-radius: 50px;
  z-index: 40;
  animation: toastin .3s ease both;
}
@keyframes toastin { from { opacity: 0; transform: translateY(20px);} to { opacity:1; transform:none; } }

/* ---------- Narrow / portrait fallback ----------
   Still keeps a left gutter — the neglect doesn't go away when she turns
   the tablet, it just gets a narrower screen. */
@media (max-width: 900px) {
  :root { --gutter-left: 16vw; --gutter-right: 5vw; }
  .home-title { font-size: 42px; }
  .q-text { font-size: 32px; }
  .big-btn, .choice { font-size: 28px; min-height: 88px; }
  .tiles { grid-template-columns: repeat(6, minmax(0, 1fr)); gap: 10px; }
  .squares, .squares.long { --sq: 58px; gap: 6px; }
  .big-btn.is-last::after { font-size: 17px; padding: 6px 12px; }
  .modal-inner { margin-left: 0; width: 86vw; }
  .seg-label { display: none; }
  .seg-btn { min-width: 96px; font-size: 22px; }
  .chip { font-size: 24px; }
}

/* ---------- Short screens (browser chrome, split screen) ---------- */
@media (max-height: 720px) {
  .q-text { font-size: 32px; }
  .card.answered .q-text { font-size: 26px; }
  .big-btn { min-height: 84px; margin-bottom: 14px; }
  .choice { min-height: 78px; margin-bottom: 12px; }
  .choices.four .choice { min-height: 70px; margin-bottom: 10px; }
  .fb-answer { font-size: 30px; }
  .fb-fact { font-size: 22px; }
  .icon-btn { width: 58px; height: 58px; font-size: 26px; }
  .chip, .seg-btn { min-height: 56px; }
}

@media (prefers-reduced-motion: reduce) {
  * { animation: none !important; transition: none !important; }
}