/* ---- home page "try a puzzle" + puzzle book promo ----
   Mechanics adapted from the AAP opener prototype, sized to sit inside the page. */
.puzzle-promo{
  --pz-umber:#22140e; --pz-bark:#5c3526; --pz-clay:#95563e; --pz-rose:#ba755a;
  --pz-sand:#dcb9ab; --pz-paper:#fbf7f6;
  --box:40px; --tile:40px;
  max-width:880px;margin:clamp(-36px,-3vw,-20px) 0 0 auto;
  background:var(--pz-paper);border:1px solid var(--panel-line,#e6d9cb);border-radius:10px;
  padding:clamp(20px,3vw,32px);
  display:grid;grid-template-columns:minmax(0,1fr) 200px;gap:clamp(20px,3vw,36px);align-items:start;
}
.puzzle-promo:focus-visible{outline:2px solid var(--pz-rose);outline-offset:3px;}

.pz-game{text-align:center;min-width:0;}
.pz-kicker{
  font-family:'JetBrains Mono',monospace;text-transform:uppercase;letter-spacing:.12em;
  font-size:.7rem;color:var(--accent,#9f5c42);margin:0 0 .6em;
}
.pz-clue{font-family:'Fraunces',Georgia,serif;font-weight:600;font-size:clamp(1.15rem,2.2vw,1.45rem);
  line-height:1.25;margin:0 auto 1.1rem;max-width:30ch;color:var(--pz-umber);text-wrap:balance;}

.pz-boxes{display:flex;flex-wrap:wrap;justify-content:center;column-gap:calc(var(--box)*.5);row-gap:10px;perspective:600px;}
.pz-boxes.shake{animation:pz-shake .42s;}
@keyframes pz-shake{20%,60%{transform:translateX(-6px)}40%,80%{transform:translateX(6px)}}
.pz-word{display:flex;gap:4px;}
.pz-box{width:var(--box);height:calc(var(--box)*1.12);padding:0;border:1.5px solid rgba(149,86,62,.45);border-radius:2px;
  background:#fff;color:var(--pz-umber);font:600 calc(var(--box)*.56)/1 'Fraunces',Georgia,serif;
  display:grid;place-items:center;cursor:default;}
.pz-box.next{border-color:var(--pz-umber);box-shadow:0 0 0 3px rgba(186,117,90,.28);}
.pz-box.filled{border-color:var(--pz-umber);cursor:pointer;}
.pz-box.win{background:var(--pz-rose);border-color:var(--pz-rose);color:var(--pz-paper);cursor:default;
  animation:pz-flip .5s ease both;animation-delay:calc(var(--i) * 60ms);}
@keyframes pz-flip{0%{transform:rotateX(0)}50%{transform:rotateX(90deg)}100%{transform:rotateX(0)}}
.pz-box.revealed{background:transparent;border-style:dashed;border-color:var(--pz-clay);color:var(--pz-clay);cursor:default;}

.pz-tray{display:flex;flex-wrap:wrap;justify-content:center;gap:6px;margin:1.3rem auto .8rem;max-width:520px;}
.pz-tray.nope{animation:pz-shake .35s;}
.pz-tray.done{display:none;}
.pz-tile{width:var(--tile);height:var(--tile);border:0;border-radius:6px;cursor:pointer;
  background:var(--pz-bark);color:var(--pz-paper);font:600 calc(var(--tile)*.5)/1 'Fraunces',Georgia,serif;
  box-shadow:inset 0 -3px 0 var(--pz-umber), 0 1px 2px rgba(34,20,14,.2);transition:opacity .2s, background-color .15s;}
.pz-tile:hover{background:var(--pz-clay);}
.pz-tile:active{transform:translateY(1px);}
.pz-tile.used{opacity:.12;pointer-events:none;}

.pz-help{font-size:.85rem;color:var(--ink-muted,#6b5545);line-height:1.5;margin:0 auto .8rem;max-width:46ch;}
.pz-game.finished .pz-help{display:none;}
.pz-kbd-btn{background:none;border:0;color:var(--pz-bark);text-decoration:underline;font:inherit;cursor:pointer;padding:0;}
.pz-status{min-height:1.5em;font-size:.95rem;line-height:1.55;color:var(--pz-umber);margin:0 auto .9rem;max-width:48ch;}
.pz-game.finished .pz-status{margin-top:1.2rem;}
.pz-status strong{font-family:'Fraunces',Georgia,serif;font-size:1.15rem;font-weight:600;display:block;margin-bottom:.15rem;}

.pz-actions{display:flex;flex-wrap:wrap;gap:8px;justify-content:center;align-items:center;}
.pz-btn{font:600 .85rem 'Inter',system-ui,sans-serif;padding:.6em 1.15em;border-radius:999px;cursor:pointer;
  background:transparent;color:var(--pz-umber);border:1.5px solid rgba(92,53,38,.5);}
.pz-btn:hover{border-color:var(--pz-umber);}
.pz-btn[hidden]{display:none;}
.pz-sound{background:none;border:0;font:500 .78rem 'Inter',system-ui,sans-serif;color:var(--ink-muted,#6b5545);
  cursor:pointer;padding:.4em .5em;text-decoration:underline;text-underline-offset:2px;}
.pz-kbd{position:absolute;left:-9999px;top:auto;width:1px;height:1px;opacity:0;}
.pz-particle{position:fixed;left:0;top:0;width:10px;height:10px;border-radius:2px;pointer-events:none;z-index:60;}

/* ---- the books ---- */
.pz-books{border-left:1px solid var(--panel-line,#e6d9cb);padding-left:clamp(16px,2.4vw,28px);transition:transform .4s ease;}
.pz-books-label{font-family:'JetBrains Mono',monospace;text-transform:uppercase;letter-spacing:.12em;
  font-size:.68rem;color:var(--accent,#9f5c42);margin:0 0 .4em;}
.pz-books-intro{font-size:.82rem;line-height:1.45;color:var(--ink-muted,#6b5545);margin:0 0 1em;}
.pz-book-list{list-style:none;margin:0;padding:0;display:grid;gap:16px;}
.pz-book a,.pz-book .pz-book-inner{display:grid;grid-template-columns:64px 1fr;gap:10px;align-items:start;
  color:var(--pz-umber);text-decoration:none;}
.pz-cover{width:64px;aspect-ratio:2/3;border-radius:2px;overflow:hidden;
  box-shadow:0 1px 2px rgba(34,20,14,.25), 2px 3px 8px rgba(34,20,14,.12);background:var(--pz-bark);
  transition:transform .2s ease, box-shadow .2s ease;}
.pz-cover:has(img){aspect-ratio:auto;}
.pz-cover img{display:block;width:100%;height:auto;}
.pz-cover-stand{display:flex;align-items:flex-end;height:100%;padding:6px 5px;
  font:600 .5rem/1.2 'Fraunces',Georgia,serif;color:var(--pz-paper);
  background:linear-gradient(160deg,var(--pz-clay),var(--pz-umber));}
.pz-book-title{font-family:'Fraunces',Georgia,serif;font-size:.85rem;line-height:1.3;}
.pz-book-cta{display:block;margin-top:.35em;font:600 .74rem 'Inter',system-ui,sans-serif;color:var(--accent,#9f5c42);}
.pz-book a:hover .pz-cover{transform:translateY(-2px);box-shadow:0 2px 3px rgba(34,20,14,.25), 3px 6px 14px rgba(34,20,14,.18);}
.pz-book a:hover .pz-book-cta{text-decoration:underline;}
/* after a solve or reveal, the books step forward a little */
.pz-books.spotlight .pz-books-label{color:var(--pz-rose);}
.pz-books.spotlight .pz-cover{animation:pz-nudge .9s ease 1 both;}
.pz-books.spotlight .pz-book:nth-child(2) .pz-cover{animation-delay:.15s;}
/* when the puzzle came from a particular book, only that one steps forward */
.pz-books.spotlight:has(.featured) .pz-book:not(.featured) .pz-cover{animation:none;}
.pz-book.featured .pz-cover{outline:2px solid var(--pz-rose);outline-offset:3px;}
.pz-status a{color:var(--accent,#9f5c42);}
@keyframes pz-nudge{0%,100%{transform:none}40%{transform:translateY(-5px) rotate(-2deg)}}

@media (max-width:760px){
  .puzzle-promo{grid-template-columns:1fr;margin-top:0;}
  .pz-books{border-left:0;border-top:1px solid var(--panel-line,#e6d9cb);padding:18px 0 0;}
  .pz-book-list{grid-template-columns:1fr 1fr;}
  .pz-book a,.pz-book .pz-book-inner{grid-template-columns:1fr;justify-items:start;}
}
@media (prefers-reduced-motion:reduce){
  .puzzle-promo *, .puzzle-promo *::before, .puzzle-promo *::after{animation:none !important;transition:none !important;}
}