/* Hitori Shade: home, the bar, the board. Warm paper, ink-dark shade, big
   numbers; a blue ring keeps a square white, red marks a broken rule. */
:root{--shade:#243140;--ring:#2D6F8E;--rep:#C96A1E;--cellbg:#FFFFFF;--grid:#CFC9BE}

/* ------------------------------------------------------------------ home */
.home{align-items:center;justify-content:center;gap:1.1em;padding:1em;text-align:center;overflow:auto}
.home-head{display:flex;flex-direction:column;align-items:center;gap:.35em}
.home-icon{width:4.2em;height:4.2em;border-radius:1em;box-shadow:0 6px 18px rgba(29,39,51,.18)}
.title{font:800 clamp(2.2em,9vw,3.4em)/1 var(--sans);letter-spacing:-.01em;margin:0;color:var(--ink)}
.tagline{margin:0;color:var(--ink-soft);font-size:1.08em}
.home-body{display:flex;flex-direction:column;align-items:center;gap:.8em;width:min(30em,100%)}
.levels{display:grid;grid-template-columns:repeat(5,1fr);width:min(28em,100%)}
.levels .choice{display:flex;flex-direction:column;align-items:center;justify-content:center;line-height:1.15;min-width:0;padding:.45em .3em}
.levels .choice b{font-size:.92em}
.levels .choice small{font-size:.75em;opacity:.85;font-weight:500}
.row .go{font-size:1.6em;line-height:1;color:var(--ink-dim)}
.links{display:flex;gap:.2em;justify-content:center;flex-wrap:wrap}
.home > :first-child{margin-top:auto}.home > :last-child{margin-bottom:auto}
@media (max-width:520px){.levels{grid-template-columns:repeat(3,1fr)}}
@media (orientation:landscape) and (max-height:520px){
  .home{flex-direction:row;gap:1.4em;padding:.6em 1em}
  .home > *{margin-block:auto!important}
  html:not(.hw-embed) body:has(#home:not([hidden])) #home.home{padding-top:.6em!important}
  .home-head{flex:0 1 auto;padding-top:2.6em}
  html.hw-embed .home-head{padding-top:0}
  .home-icon{width:3em;height:3em}
  .title{font-size:2.1em}
  .home-body{gap:.5em;flex:0 1 24em}
  .levels{grid-template-columns:repeat(5,1fr)}
  .levels .choice{padding:.3em .2em}
  .home .pill{padding:.5em 2em}
  .links .link{min-height:44px;padding:.2em .5em}
}
@media (max-height:420px){.tagline{display:none}}

/* ---------------------------------------------------------------- game */
#game{flex-direction:column}
.bar{display:flex;align-items:center;justify-content:space-between;gap:.6em;padding:max(.5em,env(safe-area-inset-top)) .7em .3em;width:min(36em,100%);margin:0 auto}
.felt{flex:1;min-height:0;min-width:0;display:grid;place-items:center;padding:6px}
.dock{display:flex;align-items:center;justify-content:center;gap:.7em;padding:.4em .6em max(.6em,env(safe-area-inset-bottom))}
.icon-btn{width:48px;height:48px;border-radius:14px;border:1px solid var(--hair);background:var(--panel);display:grid;place-items:center;padding:0;flex:none}
.icon-btn svg,.tool svg,.readout svg{width:24px;height:24px;fill:none;stroke:var(--ink);stroke-width:2.2;stroke-linecap:round;stroke-linejoin:round}
.readout{display:flex;flex-direction:column;align-items:center;justify-content:center;min-height:48px;padding:0 .9em;border-radius:14px;background:var(--panel);border:1px solid var(--hair);line-height:1.1}
.readout span{font-weight:800;font-size:1.1em}
.readout small{color:var(--ink-soft);font-size:.8em}
.readout.clock{flex-direction:row;gap:.35em;min-width:5.2em;font-variant-numeric:tabular-nums}
.readout.clock svg{width:20px;height:20px;stroke:var(--ink-soft)}
.tool{display:flex;align-items:center;gap:.4em;min-height:48px;padding:0 1.05em;border-radius:14px;border:1px solid var(--hair);background:var(--panel);font-weight:700}
.tool:disabled{opacity:.42;cursor:default}
.tool:active:not(:disabled),.icon-btn:active{transform:translateY(1px)}
.icon-btn:focus-visible,.tool:focus-visible,.board:focus-visible{outline:3px solid var(--accent-hi);outline-offset:3px}

/* the board: white squares, big numbers; shade is a dark tile that drops in */
.board{--cs:44px;position:relative;display:grid;grid-template-columns:repeat(var(--n),var(--cs));grid-auto-rows:var(--cs);gap:2px;padding:2px;
  border-radius:12px;background:var(--grid);box-shadow:0 0 0 2px var(--ink),0 10px 28px rgba(29,39,51,.16);touch-action:none;user-select:none;-webkit-user-select:none}
.cell{position:relative;display:grid;place-items:center;cursor:pointer;background:var(--cellbg);border-radius:4px;transition:background .14s,transform .14s}
.cell .num{position:relative;z-index:1;font:800 calc(var(--cs)*.54)/1 var(--sans);font-variant-numeric:tabular-nums;color:var(--ink);transition:color .14s}
.cell::before{content:"";position:absolute;inset:0;border-radius:4px;background:var(--shade);transform:scale(.2);opacity:0;transition:transform .16s cubic-bezier(.3,1.5,.5,1),opacity .12s}
.cell::after{content:"";position:absolute;inset:12%;border-radius:50%;box-shadow:inset 0 0 0 calc(var(--cs)*.06) var(--ring);transform:scale(.4);opacity:0;transition:transform .16s cubic-bezier(.3,1.6,.5,1),opacity .12s;pointer-events:none}
@media (hover:hover){.cell:hover{background:#F1EEE7}}
.cell[data-m="1"]::before{transform:none;opacity:1}
.cell[data-m="1"] .num{color:rgba(255,255,255,.34)}
.cell[data-m="2"]::after{transform:none;opacity:1}
.cell.rep:not([data-m="1"]) .num{color:var(--rep)}
.cell.bad[data-m="1"]::before{background:var(--bad)}
.cell.bad[data-m="2"]::after{box-shadow:inset 0 0 0 calc(var(--cs)*.07) var(--bad)}
.cell.bad .num{color:#fff}
.cell.bad[data-m="2"] .num{color:var(--bad)}
.cell.cut:not([data-m="1"]){background:#F7D9D2}
.cell.pop{animation:pop .2s ease-out}
@keyframes pop{40%{transform:scale(.9)}}
.cell.shake{animation:shake .32s}
@keyframes shake{20%{transform:translateX(-4px)}40%{transform:translateX(4px)}60%{transform:translateX(-3px)}80%{transform:translateX(2px)}}
.cell.cur{box-shadow:0 0 0 3px var(--accent),0 0 0 5px #fff;z-index:2}
.cell.glow:not([data-m="1"]){animation:glow .7s ease-out}
@keyframes glow{0%{background:#CBEBD8}100%{background:var(--cellbg)}}
.cell.hinted{animation:hinted 1s ease-out}
@keyframes hinted{0%{box-shadow:0 0 0 0 rgba(227,169,59,.95)}100%{box-shadow:0 0 0 14px rgba(227,169,59,0)}}
.cell.win{animation:win .5s ease-out both}
.cell.win[data-m="1"]::before{background:var(--accent)}
@keyframes win{0%{transform:scale(1)}45%{transform:scale(1.12)}100%{transform:scale(1)}}

#fx{position:fixed;inset:0;width:100%;height:100%;pointer-events:none;z-index:15}

/* a phone on its side, or a short frame: the bar and tools at the sides */
@media (orientation:landscape) and (max-height:520px){
  #game{flex-direction:row}
  .bar{flex-direction:column;justify-content:center;width:auto;margin:0;padding:.5em .4em .5em max(.6em,env(safe-area-inset-left));gap:.5em}
  .readout{min-width:6.4em}
  .dock{flex-direction:column;padding:.5em max(.6em,env(safe-area-inset-right)) .5em .4em;gap:.5em}
  .tool{min-width:6.4em;justify-content:flex-start}
}
@media (max-width:360px){.tool span{display:none}.tool{padding:0 .9em}}

/* cards */
.card.result h2{color:var(--accent)}
.note.big{font-weight:800;color:var(--ink);font-size:1em;margin:-.3em 0 .2em}
.row .time{font-weight:800;font-variant-numeric:tabular-nums}
.how p{margin:.25em 0}
.how-art{display:grid;place-items:center;margin:.1em 0 .6em}
.mini{display:grid;grid-template-columns:repeat(4,2.1em);grid-auto-rows:2.1em;gap:2px;padding:2px;background:var(--grid);border-radius:8px}
.mini span{display:grid;place-items:center;background:#fff;border-radius:3px;font-weight:800}
.mini span.s{background:var(--shade);color:rgba(255,255,255,.35)}
@media (max-height:420px){.how-art{display:none}}
/* short screens: cards stay whole, their buttons side by side */
@media (max-height:520px){
  .card{padding:.8em 1em .8em;width:min(34em,100%)}
  .card h2{font-size:1.3em;margin:0 0 .35em}
  .card .actions{flex-direction:row;flex-wrap:wrap;justify-content:center;margin-top:.5em}
  .card .actions .pill{padding:.45em 1.4em;font-size:1.05em}
  .card .stats{margin:.1em 0 .2em}
  .card .note{margin:.15em 0}
  .how{display:grid;grid-template-columns:1fr 1fr;column-gap:1.2em;font-size:.92em}
  .how .note{grid-column:1/-1}
  .rows{gap:.35em}
  .card .row{min-height:44px;padding:.35em .8em}
}