/* Hexa Stack Sort: a calm light table (Nordic: warm grey, pale slots), bright stacks with a symbol on every colour. */
:root{--bg:#EEF0EC;--bg2:#DDE2DC;--paper:#FFFFFF;--ink:#22303A;--ink-soft:#4C5A63;--ink-dim:#7A8790;--line:rgba(34,48,58,.14);
  --accent:#2F6F8F;--accent-lo:#225670;--gold:#E8A21A;color-scheme:light}
body{background:radial-gradient(120% 90% at 50% 0%,#F8F9F6,var(--bg) 55%,var(--bg2));color:var(--ink);font-size:19px}
.screen{background:none}

/* type and buttons */
.title{font:800 clamp(2em,7.2vmin,3.4em)/1.04 var(--sans);color:var(--ink);text-shadow:none;letter-spacing:-.015em;text-wrap:balance}
.pill{font:700 1.15em/1 var(--sans);color:#fff;background:var(--accent);box-shadow:0 2px 0 var(--accent-lo),0 8px 18px rgba(47,111,143,.28);
  min-height:52px;padding:.8em 2.4em;transition:transform .08s,filter .15s}
.pill:hover{filter:brightness(1.07)}
.pill:active{transform:translateY(2px);box-shadow:0 0 0 var(--accent-lo),0 4px 10px rgba(47,111,143,.25)}
.link{color:var(--accent);min-height:44px;font-weight:650;font-size:1em}
.jewel{width:50px;height:50px;border:1px solid var(--line);background:var(--paper);box-shadow:0 1px 3px rgba(20,30,40,.12);transition:transform .08s;position:relative;flex:none}
.jewel:active{transform:scale(.93)}
.jewel svg{stroke:var(--ink)}
.jewel:disabled{opacity:.36}
.jewel .badge{position:absolute;right:-4px;top:-4px;min-width:20px;height:20px;border-radius:10px;background:var(--accent);color:#fff;font:800 13px/20px var(--sans);text-align:center;padding:0 5px}
.jewel:disabled .badge{background:var(--ink-dim)}
.jewel:focus-visible,.pill:focus-visible,.link:focus-visible,.choice:focus-visible,.toggle:focus-visible,.row:focus-visible,#board:focus-visible{outline:3px solid var(--accent);outline-offset:3px}
#board:focus{outline:none}

/* cards */
.veil{background:rgba(34,48,58,.4)}
.card{background:var(--paper);border:1px solid var(--line);box-shadow:0 20px 50px rgba(20,30,40,.25);color:var(--ink)}
.card h2{font:800 1.5em/1.15 var(--sans);color:var(--ink)}
.card .x{border-color:var(--line);color:var(--ink);width:44px;height:44px}
.card .x svg{stroke:var(--ink)}
.card > .row{margin-top:.45em;min-height:48px;color:var(--ink)}
.card > .row small{color:var(--ink-soft)}
.row{background:var(--bg);border-color:var(--line)}
.choice{border-color:var(--line);background:var(--bg);color:var(--ink);min-height:48px;font-weight:700;font-size:1.05em}
.choice:disabled{opacity:.45;cursor:default}
.levels{display:grid;grid-template-columns:repeat(6,1fr);gap:.4em;max-height:min(52vh,24em);overflow-y:auto;padding:.2em .3em .4em;margin:0 -.3em}
.levels .tier{grid-column:1/-1;margin:.5em 0 0;font-weight:800;font-size:.85em;color:var(--ink-soft);letter-spacing:.06em;text-transform:uppercase}
.levels .tier:first-child{margin-top:0}
.levels .choice{padding:.25em 0;min-width:0;display:flex;flex-direction:column;align-items:center;justify-content:center;line-height:1.05}
.levels .choice small{font-size:.62em;color:#C98A12}
.levels .choice.now{border:2px solid var(--accent)}
.toggle{background:#C3CDD4;border-color:var(--line);width:3.2em;height:1.8em}
.toggle::after{background:#fff}
.toggle[aria-pressed=true]{background:var(--accent)}
.toggle[aria-pressed=true]::after{background:#fff;left:1.55em}
.stats{color:var(--ink-soft);flex-wrap:wrap;gap:1.2em}
.stats > div{text-align:center}
.stats b{font:800 1.7em/1.1 var(--sans);color:var(--ink)}
.note{color:var(--ink-soft);margin:.3em 0}
.note.big{font-size:1.1em;color:var(--ink);font-weight:700;text-align:center}
.card .rows .note{text-align:left;margin:0}
.card .rows .row span{font-weight:700}
.card .actions .links{display:flex;flex-wrap:wrap;justify-content:center;gap:.2em}
.burst-title{animation:pop .5s cubic-bezier(.3,1.6,.5,1)}
@keyframes pop{from{transform:scale(.5);opacity:0}}
.toast{pointer-events:none;background:var(--ink);color:#fff;border:0;bottom:auto;top:5.5em;max-width:calc(100% - 2em);text-align:center;font-weight:650}

/* the game screen: the bar on top, the board and tray under it; on a wide screen the bar is a column on the left */
#game{display:grid;grid-template-rows:auto 1fr;grid-template-columns:1fr;padding:max(.5em,env(safe-area-inset-top)) max(.6em,env(safe-area-inset-right)) max(.4em,env(safe-area-inset-bottom)) max(.6em,env(safe-area-inset-left));gap:.3em}
#game[hidden]{display:none!important}
.hud{display:flex;align-items:center;gap:.6em;min-width:0}
.status{flex:1;min-width:0;display:flex;flex-direction:column;gap:.25em}
.lvl-name{font-size:1.05em;white-space:nowrap;overflow:hidden;text-overflow:ellipsis;line-height:1.15}
.goalbar{position:relative;height:26px;border-radius:13px;background:var(--paper);border:1px solid var(--line);overflow:hidden}
.goalbar i{position:absolute;inset:0 auto 0 0;width:0;background:linear-gradient(90deg,#5FB38A,#2F9F6E);transition:width .35s cubic-bezier(.3,1.3,.5,1)}
.goalbar span{position:relative;display:block;text-align:center;font:800 16px/24px var(--sans);font-variant-numeric:tabular-nums;color:var(--ink)}
.goalbar.pulse{animation:gpulse .4s}
@keyframes gpulse{40%{transform:scale(1.05)}}
.felt{position:relative;min-height:0;min-width:0}
#board{position:absolute;inset:0;width:100%;height:100%;display:block;touch-action:none;-webkit-user-select:none;user-select:none;cursor:pointer}
#game.wide{grid-template-rows:1fr;grid-template-columns:minmax(7.5em,9em) minmax(0,1fr);column-gap:.6em}
#game.wide .hud{flex-direction:column;align-items:stretch;justify-content:flex-start;gap:.5em}
#game.wide .status{flex:none}
#game.wide .lvl-name{white-space:normal}
#game.wide .tools{display:grid;grid-template-columns:repeat(2,50px);gap:.5em}
.tools{display:flex;gap:.5em}

/* home: the picture beside or above the words */
.home{flex-direction:column;align-items:center;justify-content:center;gap:1em;padding:1.2em;text-align:center}
.home.wide{flex-direction:row;gap:2.4em}
.home-art{display:flex;justify-content:center}
.home-art canvas{display:block}
.home-side{display:flex;flex-direction:column;align-items:center;gap:.55em;max-width:24em}
.tagline{color:var(--ink-soft);text-shadow:none;font-size:1.1em}
.links{display:flex;gap:.4em;justify-content:center;flex-wrap:wrap}
.streak{color:var(--ink-dim);font-size:.9em;margin:0}
@media (max-height:480px){
  .home{padding:.6em 1em}
  .home-side{gap:.25em}
  .home .title{font-size:2em}
  .home .tagline{margin:0;font-size:1em}
  .home .links .link{min-height:40px;padding:.2em .5em}
  .jewel{width:46px;height:46px}
  #game.wide .tools{grid-template-columns:repeat(2,46px)}
  .lvl-name{font-size:.95em}
  .card .note.sub{display:none}
  .card .pill{min-height:46px;padding:.6em 2em}
  .card .stats{margin:0 0 .2em}
  .card .stats b{font-size:1.4em}
}
@media (max-width:400px){.hud{gap:.4em}.jewel{width:46px;height:46px}}
@media (max-height:700px) and (max-aspect-ratio:1/1){.home{gap:.6em}.home-side{gap:.35em}.home .tagline{margin:0}}