/* quiet.css — wilderbrain.com. SO o que o quiet.js cria dentro de section.exercise.
   Caixa, moldura, .tabs, .ex-before, .ex-receipt, .ex-controls sao do ruby.css (build).
   Lei: TUDO E EXPIRACAO — saida >= 1,5x mais lenta que a entrada; so transform/opacity animam;
   nada se mexe sem clique. Tokens vem do ruby.css. */

section.exercise[hidden],.exercise [hidden]{display:none!important}
/* .ex-stage e grid (ruby.css). O que eu crio se centra sozinho, mesmo no palco com label */
.ring,.fuse,.ex-msg,.ex-lines,.targets,.ground-list,.drift-canvas,.ex-kept,.since-num,.ex-step-view{
  justify-self:center;text-align:center;margin-top:12px}
.ring,.since-num{margin-top:0}

/* ---------- anel: o circulo e o ::before (escala pela var --s); a palavra fica parada ---------- */
.ring{--sz:160px;--s:.55;position:relative;width:var(--sz);height:var(--sz);
  display:flex;align-items:center;justify-content:center;background:transparent;
  transition:background-color .6s}
[data-size=home] .ring{--sz:120px}
[data-size=room] .ring{--sz:260px}
[data-size=room] .ex-msg,[data-size=room] .ex-lines{font-size:16px}
.ring::before{content:"";position:absolute;inset:0;border:3px solid var(--exercise-ring,var(--wine-deep));border-radius:50%;
  transform:scale(var(--s));transition:transform var(--dur,1.5s) var(--ease,ease-out);will-change:transform}
.ring-word{position:relative;font-family:var(--display);font-style:italic;font-weight:400;
  font-variation-settings:'SOFT' 0,'WONK' 1,'opsz' 48;font-size:clamp(24px,2.4vw,32px);
  line-height:1.15;color:var(--wine-deep);max-width:85%;transition:opacity .3s;will-change:opacity}
[data-size=home] .ring-word{font-size:22px}
.ring.is-text{--s:1}
.ring.is-text .ring-word{font-size:clamp(20px,2.2vw,28px)}

/* ---------- filete de cobre: o unico relogio ---------- */
.fuse{width:min(100%,320px);height:3px;background:var(--line);overflow:hidden}
[data-size=room] .fuse{width:min(100%,420px)}
[data-kind=timer] .fuse{width:100%;height:4px}
.fuse-bar{display:block;height:100%;background:var(--copper);transform-origin:left center;
  transform:scaleX(1);will-change:transform}

/* ---------- mensagens (aria-live) ---------- */
.ex-msg{font-family:var(--mono);font-size:var(--fs-min);line-height:1.6;color:var(--ink-soft);
  max-width:40ch;margin:0}
.ex-lines{font-family:var(--mono);font-size:var(--fs-min);line-height:1.6;color:var(--ink-soft);
  min-height:1.6em;max-width:40ch;margin:0;transition:opacity .3s}

/* ---------- tap: dois alvos, aceso = --wine-wash ---------- */
.targets{display:flex;gap:12px;width:100%}
.target{flex:1 1 44%;min-width:96px;min-height:220px;background:var(--panel);
  border:2px solid var(--wine-deep);color:var(--wine-deep);cursor:pointer;touch-action:none;
  -webkit-tap-highlight-color:transparent;font:inherit;
  transition:background-color .25s,transform .12s}
[data-size=home] .target{min-height:96px}
.target.is-lit{background:var(--wine-wash)}
.target.is-pressed{transform:scale(.98)}

/* ---------- ground: quadradinhos de 12px que aparecem por toque ---------- */
.ground-list{display:flex;gap:10px;justify-content:center;flex-wrap:wrap;max-width:320px}
.ground-list i{width:12px;height:12px;background:var(--wine-deep);opacity:.15;transition:opacity .2s}
.ground-list i.is-on{opacity:1}
.ex-senses li.is-now{color:var(--wine);font-weight:600}
.ex-senses li.is-done{color:var(--dim)}
.ex-senses li.is-done::before{background:var(--dim)}
.ex-stage[tabindex="0"]{cursor:pointer}

/* ---------- drift: canvas quadrado, rastro desenhado pelo JS ---------- */
.drift-canvas{display:block;width:min(100%,420px);aspect-ratio:1;background:var(--panel);
  border:2px solid var(--wine-deep);touch-action:none;cursor:crosshair}

/* ---------- line: a frase guardada ---------- */
.ex-kept{font-family:var(--display);font-style:italic;font-size:24px;line-height:1.3;
  color:var(--ink);max-width:34ch;margin:0;transition:opacity .3s}
.ex-kept small{display:block;font-family:var(--mono);font-style:normal;font-size:13.5px;
  letter-spacing:.04em;color:var(--dim);margin-top:10px}

/* ---------- since: o 21 riscado em cobre ---------- */
.since-num{font-family:var(--display);font-size:96px;line-height:1;color:var(--ink);
  font-variation-settings:'SOFT' 0,'WONK' 1,'opsz' 144}
.since-num span{position:relative;display:inline-block}
.since-num span::after{content:"";position:absolute;left:-4%;right:-4%;top:52%;height:6px;
  background:var(--copper);transform:scaleX(0);transform-origin:left center;transition:transform .4s ease-out}
.since-num.is-struck span::after{transform:scaleX(1)}
.ex-clear{background:none;border:0;padding:8px 0;min-height:44px;font-family:var(--mono);font-size:var(--fs-min);
  letter-spacing:.06em;text-transform:uppercase;color:var(--dim);cursor:pointer;text-decoration:underline;justify-self:center}
.ex-clear:hover{color:var(--wine)}

/* ---------- steps: um passo por vez, botao de polegar ---------- */
.ex-step-view{width:100%;display:flex;flex-direction:column;align-items:center;gap:22px}
.ex-step{font-family:var(--display);font-size:22px;line-height:1.35;color:var(--ink);
  max-width:32ch;margin:0;transition:opacity .4s}
.ex-next{min-height:56px;min-width:160px;padding:0 30px;background:var(--wine);color:#FFF6F8;
  border:0;font-family:var(--body);font-size:16px;font-weight:600;cursor:pointer}
.ex-next:hover{background:var(--wine-deep)}

/* ---------- Dim: escurece SO o quadrado (texto #E8CDD5 sobre --wine-deep ~ 11:1) ---------- */
.exercise.is-dim{background:var(--wine-deep);color:#E8CDD5}
.exercise.is-dim::after{background:var(--wine-deep);border-color:#E8CDD5}   /* o painel e o ::after (ruby.css) */
.exercise.is-dim .ex-before,.exercise.is-dim .ex-receipt,.exercise.is-dim .ex-after,
.exercise.is-dim .ring-word,.exercise.is-dim .ex-msg,.exercise.is-dim .ex-lines,
.exercise.is-dim .ex-step,.exercise.is-dim .ex-kept,.exercise.is-dim .ex-kept small,
.exercise.is-dim .since-num,.exercise.is-dim label,.exercise.is-dim .ex-senses li{color:#E8CDD5}
.exercise.is-dim a{color:#FFF6F8}
.exercise.is-dim .ring::before{border-color:#E8CDD5}
.exercise.is-dim .fuse{background:rgba(232,205,213,.25)}
.exercise.is-dim .target{background:transparent;border-color:#E8CDD5;color:#E8CDD5}
.exercise.is-dim .target.is-lit{background:rgba(232,205,213,.2)}
.exercise.is-dim .ground-list i{background:#E8CDD5}
.exercise.is-dim .drift-canvas{background:var(--wine-deep);border-color:#E8CDD5}
.exercise.is-dim .ex-next,.exercise.is-dim .ex-start{background:#E8CDD5;color:var(--wine-deep)}   /* 10,2:1 */
.exercise.is-dim .ex-next:hover,.exercise.is-dim .ex-start:hover{background:#FFF6F8}
.exercise.is-dim .ex-clear,.exercise.is-dim .ex-opt,.exercise.is-dim .ex-dim{color:#E8CDD5;border-color:#E8CDD5}
.exercise.is-dim .ex-dim[aria-pressed="true"]{background:#E8CDD5;color:var(--wine-deep)}

/* ---------- reduced-motion: MODO texto+cor. O exercicio continua; nada escala ---------- */
@media (prefers-reduced-motion: reduce){
  .ring::before,.ring-word,.fuse-bar,.target,.ground-list i,.since-num span::after,
  .ex-kept,.ex-lines,.ex-step,.ring{transition:none!important}
  .ring::before{transform:none!important}
  .ring[data-phase=in]{background:var(--wine-wash);border-radius:50%}
  .ring[data-phase=out]{background:transparent}
  .target.is-pressed{transform:none}
  .fuse{height:auto;background:none;overflow:visible}
  .fuse-bar{transform:none!important;background:none;font-family:var(--mono);font-style:normal;
    font-size:var(--fs-min);letter-spacing:.14em;text-transform:uppercase;color:var(--copper);min-height:1.2em}
  .exercise.is-dim .fuse{background:none}
  .exercise.is-dim .ring[data-phase=in]{background:rgba(232,205,213,.2)}
}