/* «Думка» – телефон учня й вікно вчителя (storinky/dumka*.php).
   Спокійніше за «Дзвінок»: глибокий фіолет, без таймера й балів; А/Б/В/Г – кольори й фігури «Дзвінка». */
:root{
  --dum-tlo:#1c1844;--dum-tlo-2:#26215c;--dum-panel:#312a72;--dum-tekst:#f4f2ff;--dum-tykho:#b7b1e8;--dum-liniia:rgba(255,255,255,.13);
  --dum-akcent:#afa9ec;--dum-svitlo:#eeedfe;
  --k-ok:#1d9e75;--k-ni:#d85a30;--k-mozh:#ba7517;
  --k-v0:#d94a3d;--k-v1:#2f6fde;--k-v2:#e0a51b;--k-v3:#2e9e62;
  --k-s1:#5b8def;--k-s2:#7f77dd;--k-s3:#9a6fd6;--k-s4:#c160b8;--k-s5:#e0528f;
  --serif:Fraunces,Georgia,serif;--sans:Manrope,system-ui,"Segoe UI",Roboto,sans-serif;
}
*{box-sizing:border-box}
[hidden]{display:none!important}
html,body{margin:0;min-height:100%;background:var(--dum-tlo);color:var(--dum-tekst);font:18px/1.45 var(--sans);-webkit-text-size-adjust:100%}
body{background:radial-gradient(ellipse at 10% 0%,#3d3496 0%,transparent 55%),radial-gradient(ellipse at 95% 100%,#5a2a6e 0%,transparent 50%),var(--dum-tlo)}
button{font:inherit;cursor:pointer;color:inherit}
#dum{min-height:100vh;min-height:100dvh;display:flex;flex-direction:column;padding:env(safe-area-inset-top,0) 16px env(safe-area-inset-bottom,0)}
.dum-logo{display:flex;align-items:center;gap:10px;color:var(--dum-tykho);font-size:13px;letter-spacing:.1em;text-transform:uppercase;padding:14px 0}
.dum-logo b{color:var(--dum-tekst);font:600 20px var(--serif);letter-spacing:0;text-transform:none}
.dum-zahol{font:600 clamp(28px,5vw,52px)/1.08 var(--serif);margin:0 0 10px}
.dum-zahol em{font-style:italic;font-weight:500;color:var(--dum-akcent)}
.dum-malo{color:var(--dum-tykho);font-size:15px;margin:0}
.dum-pom{color:#ffb4a0;font-weight:700;min-height:1.4em;margin:10px 0 0}
.dum-kn{display:inline-flex;align-items:center;justify-content:center;gap:8px;min-height:52px;padding:10px 24px;border:0;border-radius:999px;
  background:var(--dum-svitlo);color:#26215c;font:800 17px var(--sans);transition:transform .15s}
.dum-kn:hover,.dum-kn:focus-visible{transform:translateY(-2px);outline:none}
.dum-kn.dr{background:transparent;color:var(--dum-tekst);border:2px solid var(--dum-liniia)}
.dum-kn.mala{min-height:40px;padding:6px 16px;font-size:14px}
.dum-pole{width:100%;padding:16px;border:2px solid var(--dum-liniia);border-radius:16px;background:rgba(255,255,255,.07);color:#fff;
  font:800 40px/1 var(--sans);letter-spacing:.25em;text-align:center;outline:none}
.dum-pole:focus{border-color:var(--dum-akcent)}
.dum-k-ok{--k:var(--k-ok)}.dum-k-ni{--k:var(--k-ni)}.dum-k-mozh{--k:var(--k-mozh)}
.dum-k-v0{--k:var(--k-v0)}.dum-k-v1{--k:var(--k-v1)}.dum-k-v2{--k:var(--k-v2)}.dum-k-v3{--k:var(--k-v3)}
.dum-k-s1{--k:var(--k-s1)}.dum-k-s2{--k:var(--k-s2)}.dum-k-s3{--k:var(--k-s3)}.dum-k-s4{--k:var(--k-s4)}.dum-k-s5{--k:var(--k-s5)}

/* ---- телефон учня ---- */
.dum-uchen #dum{max-width:560px;margin:0 auto}
.dum-vkhid{margin:auto 0;padding:20px 0 40px;display:grid;gap:14px;text-align:center}
.dum-chekaiemo{margin:auto 0;text-align:center;padding:30px 0}
.dum-khvyli{display:flex;gap:8px;justify-content:center;margin:0 0 20px}
.dum-khvyli i{width:12px;height:12px;border-radius:50%;background:var(--dum-akcent);animation:dum-khv 1.2s ease-in-out infinite}
.dum-khvyli i:nth-child(2){animation-delay:.15s}.dum-khvyli i:nth-child(3){animation-delay:.3s}
@keyframes dum-khv{0%,100%{transform:translateY(0);opacity:.5}50%{transform:translateY(-10px);opacity:1}}
.dum-holos{flex:1;display:flex;flex-direction:column;gap:12px;padding:6px 0 20px}
.dum-holos h2{margin:0;font:600 22px var(--serif);text-align:center}
.dum-kn-var{display:grid;gap:12px;flex:1}
.dum-kn-var.abvg{grid-template-columns:1fr 1fr}
.dum-v{display:flex;align-items:center;justify-content:center;gap:12px;min-height:84px;border:0;border-radius:20px;background:var(--k);color:#fff;
  font:800 clamp(22px,6vw,34px)/1.1 var(--sans);box-shadow:0 10px 24px rgba(0,0,0,.25);transition:transform .12s,opacity .25s,outline-color .2s;outline:4px solid transparent;outline-offset:3px}
.dum-v i{font-style:normal;opacity:.9}
.dum-v:active{transform:scale(.97)}
.dum-kn-var.ie-vybir .dum-v{opacity:.35}
.dum-kn-var.ie-vybir .dum-v.vybrano{opacity:1;outline-color:#fff}
.dum-kn-var.zakryto .dum-v{pointer-events:none}
.dum-shkala{display:grid;grid-template-columns:repeat(5,1fr);gap:8px}
.dum-shkala .dum-v{min-height:110px;font-size:36px}
.dum-prymitka{text-align:center;color:var(--dum-tykho);font-size:15px;min-height:1.5em;margin:0}

/* ---- вікно вчителя ---- */
.dum-ekran #dum{padding:0 clamp(16px,3vw,40px) 20px}
.dum-verkh{display:flex;align-items:center;justify-content:space-between;gap:16px;padding:16px 0;color:var(--dum-tykho);font-size:15px;flex-wrap:wrap}
.dum-verkh .kod{font:800 22px var(--sans);letter-spacing:.12em;color:var(--dum-tekst)}
.dum-verkh .uch{font-weight:800;color:var(--dum-tekst)}
.dum-qr-ekr{flex:1;display:grid;grid-template-columns:minmax(0,1fr) auto;gap:clamp(20px,4vw,60px);align-items:center;max-width:1200px;margin:0 auto;width:100%}
.dum-qr-ekr .qr{background:#fff;border-radius:22px;padding:14px;width:min(40vh,380px)}
.dum-qr-ekr .qr svg{display:block;width:100%;height:auto}
.dum-velykyi-kod{font:800 clamp(56px,10vw,120px)/1 var(--sans);letter-spacing:.12em;margin:12px 0}
.dum-lichba{font:800 clamp(40px,6vw,72px)/1 var(--serif);color:var(--dum-akcent)}
.dum-menu{flex:1;max-width:1100px;margin:0 auto;width:100%}
.dum-nabory{display:grid;grid-template-columns:repeat(auto-fill,minmax(230px,1fr));gap:14px;margin:16px 0}
.dum-nabir{display:flex;flex-direction:column;gap:12px;padding:18px;border:1px solid var(--dum-liniia);border-radius:20px;background:var(--dum-panel);text-align:left;transition:transform .15s,border-color .2s}
.dum-nabir:hover,.dum-nabir:focus-visible{transform:translateY(-3px);border-color:var(--dum-akcent);outline:none}
.dum-nabir b{font:600 22px var(--serif)}
.dum-nabir .krapky{display:flex;gap:6px;flex-wrap:wrap}
.dum-nabir .krapky span{padding:3px 10px;border-radius:999px;background:var(--k);color:#fff;font-size:13px;font-weight:700}
.dum-raund{flex:1;display:flex;flex-direction:column;max-width:1200px;margin:0 auto;width:100%}
.dum-raund-verkh{display:flex;justify-content:space-between;align-items:baseline;gap:12px;flex-wrap:wrap}
.dum-raund-verkh h2{margin:0;font:600 clamp(24px,3vw,36px) var(--serif)}
.dum-raund-verkh .skilky{font:800 clamp(22px,3vw,32px) var(--sans)}
.dum-stovpci{flex:none;display:flex;gap:clamp(10px,2vw,28px);align-items:flex-end;height:min(46vh,440px);padding:20px 0 0;overflow:hidden}
.dum-stovp{flex:1;display:flex;flex-direction:column;align-items:center;justify-content:flex-end;height:100%;gap:8px;min-width:0}
.dum-stovp .chyslo{font:800 clamp(22px,3vw,40px) var(--sans)}
.dum-stovp .vids{font-size:15px;color:var(--dum-tykho)}
.dum-stovp .bar{width:100%;border-radius:14px 14px 4px 4px;background:var(--k);transition:height .6s cubic-bezier(.2,.8,.2,1);min-height:6px}
.dum-stovp .pidpys{font:800 clamp(16px,2vw,24px) var(--sans);text-align:center;display:flex;gap:8px;align-items:center}
.dum-khmara{flex:1;position:relative;min-height:min(56vh,480px);margin:10px 0;overflow:hidden}
.dum-khmara-chekaiemo{position:absolute;inset:0;display:grid;place-items:center;margin:0}
/* хмаринка: пухнаста форма з трьох кіл (тло + ::before + ::after), повільно пливе; слово – кольором зверху */
.dum-khmarka{position:absolute;left:50%;top:50%;transform:translate(-50%,-50%);border:0;cursor:pointer;color:var(--kolir);
  padding:.42em .9em .38em;border-radius:999px;background:rgba(255,255,255,.09);font-family:var(--sans);font-weight:800;line-height:1;
  box-shadow:inset 0 1px 0 rgba(255,255,255,.12);opacity:0;transition:left .9s cubic-bezier(.2,.8,.2,1),top .9s cubic-bezier(.2,.8,.2,1),font-size .6s,opacity .5s;
  animation:dum-plyve var(--trivalist,8s) ease-in-out var(--zatrymka,0s) infinite alternate}
.dum-khmarka.je{opacity:1}
.dum-khmarka::before,.dum-khmarka::after{content:"";position:absolute;z-index:-1;border-radius:50%;background:rgba(255,255,255,.09)}
.dum-khmarka::before{width:.95em;height:.95em;left:16%;top:-.42em}
.dum-khmarka::after{width:1.35em;height:1.35em;right:18%;top:-.62em}
.dum-khmarka span{position:relative;white-space:nowrap}
.dum-khmarka:hover,.dum-khmarka:focus-visible{background:rgba(255,255,255,.16);outline:none}
@keyframes dum-plyve{from{transform:translate(-50%,-50%) translate(-6px,3px)}to{transform:translate(-50%,-50%) translate(6px,-4px)}}
.dum-slova .dum-pole.slova{font-size:24px;letter-spacing:0;text-align:left}
.dum-seredne{text-align:center;color:var(--dum-tykho);margin:12px 0 0;font-size:17px}
.dum-seredne b{color:var(--dum-tekst);font-size:22px}
.dum-pult{display:flex;gap:10px;flex-wrap:wrap;justify-content:center;padding:18px 0 4px}
.dum-istoriia{display:flex;gap:8px;flex-wrap:wrap;padding-top:14px;border-top:1px solid var(--dum-liniia);margin-top:14px}
.dum-istoriia div{font-size:13px;color:var(--dum-tykho);background:rgba(255,255,255,.05);border:1px solid var(--dum-liniia);border-radius:12px;padding:6px 10px}
.dum-istoriia b{color:var(--dum-tekst)}
.dum-mini{display:inline-flex;gap:2px;align-items:flex-end;height:18px;margin-left:6px;vertical-align:-3px}
.dum-mini i{width:6px;background:var(--k);border-radius:2px 2px 0 0;min-height:2px}
@media (max-width:760px){.dum-qr-ekr{grid-template-columns:1fr;text-align:center}.dum-qr-ekr .qr{margin:0 auto;width:min(70vw,300px)}}
@media (prefers-reduced-motion:reduce){*{transition:none!important;animation:none!important}}

/* ---- /dumka_run: учитель обирає себе й починає (storinky/dumka-run.php) ---- */
.dum-run #dum{max-width:900px;margin:0 auto;padding-bottom:40px}
.dum-run .dum-zahol{margin-top:6px}
.dum-mii{margin:18px 0 6px}
.dum-mii form{margin:0}
.dum-kn-velyka{min-height:88px;padding:16px 34px;font-size:22px;flex-direction:column;gap:2px;border-radius:24px;width:100%;max-width:520px}
.dum-kn-velyka small{font:600 15px var(--sans);opacity:.75}
.dum-vchyteli{display:grid;gap:10px;margin-top:16px}
.dum-vchyteli details{background:var(--dum-panel);border:1px solid var(--dum-liniia);border-radius:16px;padding:6px 14px}
.dum-vchyteli summary{cursor:pointer;padding:10px 0;font:600 18px var(--serif)}
.dum-vchyteli summary span{font:700 13px var(--sans);color:var(--dum-tykho);margin-left:6px}
.dum-vch-sp{display:flex;flex-wrap:wrap;gap:8px;padding:4px 0 12px}
.dum-vch-sp form{margin:0}
.dum-vch{border:1px solid var(--dum-liniia);background:rgba(255,255,255,.06);color:var(--dum-tekst);border-radius:999px;padding:9px 14px;font:600 15px var(--sans);min-height:44px}
.dum-vch:hover,.dum-vch:focus-visible{background:var(--dum-svitlo);color:#26215c;outline:none}
.dum-vch.mii{border-color:var(--dum-akcent)}