/* FLAF.cz — sdílené jádro standalone her (pocitani/_core/game-core.css)
   E5 pilot 2026-07-17: extrahováno ze Sčítátka (kanonický vzor = Násobítko,
   obsah obou her byl v tomto rozsahu funkčně identický).
   Obsah: design tokeny (:root), reset, aurora canvas, bloby, hvězdné pozadí,
   topbar + dropdown menu, HUD, hvězdy + streak, progress (sdílená část).
   Herní specifika zůstávají v inline <style> každé hry a mohou tokeny přepsat.
   NOVÁ HRA: načti tento soubor přes asset() před vlastním <style> blokem. */

/* ===== TOKENY ===== */
:root{
  color-scheme:only light;       /* zakáže prohlížeči auto-dark i force-dark inverzi */
  --bg-1:#3a2a78;
  --bg-2:#1e4d9c;
  --bg-3:#5b2a9c;
  --bg-4:#2a6db5;
  --ink:#f4f1ff;
  --ink-soft:#b9b3e0;

  /* === GLASS TOKENY === */
  --glass-1:rgba(255,255,255,.07);    /* nejjemnější sklo */
  --glass-2:rgba(255,255,255,.11);    /* střední sklo */
  --glass-3:rgba(255,255,255,.16);    /* silnější sklo */
  --glass-edge:rgba(255,255,255,.28); /* odlesk na hraně */
  --glass-edge-soft:rgba(255,255,255,.14);
  --glass-inner:rgba(255,255,255,.45); /* vnitřní highlight nahoře */
  --glass-base:rgba(14,13,43,.18);     /* lehké tmavé podloží pro kontrast */

  /* zpětná kompatibilita */
  --card:var(--glass-1);
  --card-strong:var(--glass-3);
  --border:var(--glass-edge);

  --accent:#ffd166;
  --accent-2:#06d6a0;
  --accent-3:#ff7eb6;
  --gold:#ffd166;
  --gold-hot:#ffb84d;

  --shadow:
    0 14px 30px -10px rgba(0,0,0,.5),
    0 4px 0 rgba(0,0,0,.15),
    inset 0 1px 0 var(--glass-inner),
    inset 0 -1px 0 rgba(0,0,0,.2);
  --shadow-deep:
    0 30px 60px -20px rgba(0,0,0,.6),
    inset 0 1px 0 var(--glass-inner),
    inset 0 -1px 0 rgba(0,0,0,.25);

  --r-lg:28px;
  --r-md:18px;
  --pop:cubic-bezier(.34,1.56,.64,1);
  --ease-out:cubic-bezier(.22,1,.36,1);
  --topbar-h:60px;
}

/* ===== RESET ===== */
*{box-sizing:border-box;margin:0;padding:0;-webkit-tap-highlight-color:transparent}
html{
  /* Korekce falešně nafouknutého fontu (DuckDuckGo a spol. umí vykreslit text
     větší, než web deklaruje). Hlavní web to má v css/reset.css, ale standalone
     hry reset.css nenačítají — a právě u nich (číselná klávesnice, clamp na
     rovnici) rozbije nafouknutý font layout nejvíc. -webkit- prefix je nutný. */
  -moz-text-size-adjust:100%;
  -webkit-text-size-adjust:100%;
  text-size-adjust:100%;
}
html,body{
  height:100vh;
  height:100dvh;
  height:100svh;
  overflow:hidden;
  overscroll-behavior:none;
  touch-action:manipulation;
}
body{
  font-family:'Fredoka',system-ui,sans-serif;
  color:var(--ink);
  background:
    radial-gradient(at 15% 10%, var(--bg-1) 0, transparent 55%),
    radial-gradient(at 85% 15%, var(--bg-2) 0, transparent 55%),
    radial-gradient(at 75% 90%, var(--bg-3) 0, transparent 55%),
    radial-gradient(at 10% 85%, var(--bg-4) 0, transparent 55%),
    #0e0d2b;
  display:flex;align-items:center;justify-content:center;
  user-select:none;-webkit-user-select:none;
  position:relative;
}

/* ===== AURORA CANVAS (animované pozadí) ===== */
#aurora{
  position:fixed;inset:0;z-index:0;pointer-events:none;
  width:100%;height:100%;
  opacity:.85;
}

/* plovoucí dekorace v pozadí */
.blob{position:fixed;border-radius:50%;filter:blur(48px);opacity:.45;z-index:0;animation:float 22s ease-in-out infinite;pointer-events:none}
.blob.b1{width:300px;height:300px;background:#6f3fff;top:-100px;left:-80px}
.blob.b2{width:360px;height:360px;background:#00b4d8;bottom:-120px;right:-100px;animation-delay:-7s}
.blob.b3{width:240px;height:240px;background:#ff5f9e;top:38%;right:-80px;animation-delay:-14s}
@keyframes float{
  0%,100%{transform:translate(0,0) scale(1)}
  50%{transform:translate(25px,-35px) scale(1.1)}
}
/* statické "hvězdy" */
.stars-bg{position:fixed;inset:0;z-index:0;pointer-events:none;opacity:.6;
  background-image:
    radial-gradient(1px 1px at 10% 20%,#fff,transparent),
    radial-gradient(1px 1px at 30% 70%,#fff,transparent),
    radial-gradient(1.5px 1.5px at 55% 35%,#fff,transparent),
    radial-gradient(1px 1px at 80% 80%,#fff,transparent),
    radial-gradient(1px 1px at 90% 25%,#fff,transparent),
    radial-gradient(1.5px 1.5px at 20% 50%,#fff,transparent),
    radial-gradient(1px 1px at 65% 60%,#fff,transparent),
    radial-gradient(1px 1px at 45% 90%,#fff,transparent);
  background-size:100% 100%;
  animation:twinkle 4s ease-in-out infinite;
}
@keyframes twinkle{50%{opacity:.3}}

/* ===== SCREEN FLASH (přebliky celé obrazovky) ===== */
.screen-flash{
  position:fixed;inset:0;z-index:500;pointer-events:none;
  background:radial-gradient(circle at center, rgba(255,209,102,.7), rgba(255,209,102,0) 70%);
  opacity:0;
  mix-blend-mode:screen;
}
.screen-flash.fire{animation:flashGold .6s ease-out}
.screen-flash.red{
  background:radial-gradient(circle at center, rgba(255,80,80,.45), rgba(255,80,80,0) 70%);
}
.screen-flash.red.fire{animation:flashRed .45s ease-out}
@keyframes flashGold{
  0%{opacity:0;transform:scale(.5)}
  20%{opacity:1;transform:scale(1)}
  100%{opacity:0;transform:scale(1.4)}
}
@keyframes flashRed{
  0%{opacity:0}
  30%{opacity:1}
  100%{opacity:0}
}

/* ===== APP ===== */
.app{
  position:relative;z-index:2;
  width:min(560px,96vw);
  height:100vh;
  height:100dvh;
  height:100svh;
  max-height:900px;
  display:flex;flex-direction:column;
  gap:12px;
  padding:calc(18px + var(--topbar-h) + env(safe-area-inset-top,0px)) 18px calc(18px + env(safe-area-inset-bottom,0px));
  overflow:hidden;
}

/* ===== HORNÍ LIŠTA WEBU (sjednoceno s .activity-header na flaf.cz) ===== */
.game-topbar{
  position:fixed;top:0;left:0;right:0;
  box-sizing:border-box;
  height:calc(var(--topbar-h) + env(safe-area-inset-top,0px));
  padding:env(safe-area-inset-top,0px) 16px 0;
  display:flex;align-items:center;justify-content:space-between;gap:10px;
  background:rgba(72,61,139,.95);
  backdrop-filter:blur(10px);-webkit-backdrop-filter:blur(10px);
  z-index:1000;
}
.game-topbar__back{
  display:flex;align-items:center;gap:8px;
  color:#fff;text-decoration:none;font-weight:600;font-size:16px;
  font-family:'Nunito',system-ui,sans-serif;
  transition:opacity .15s ease;
}
.game-topbar__back:hover{opacity:.8}
.game-topbar__back .chev{
  display:inline-block;width:.6em;height:.6em;
  border-left:3px solid currentColor;border-bottom:3px solid currentColor;
  border-bottom-left-radius:2px;
  transform:rotate(45deg);margin-right:.15em;vertical-align:-.05em;
}
.game-topbar__info{
  position:absolute;left:50%;transform:translateX(-50%);
  color:#fff;font-weight:600;font-size:16px;
  font-family:'Baloo 2',sans-serif;white-space:nowrap;
  overflow:hidden;text-overflow:ellipsis;
  max-width:calc(100vw - 220px);
  pointer-events:none;text-align:center;
  display:inline-flex;align-items:center;gap:8px;
  text-transform:uppercase;letter-spacing:.04em;
}
.game-topbar__info-icon{
  width:32px;height:32px;display:block;flex:0 0 auto;object-fit:contain;
}
/* Hamburger menu */
.game-topbar__menu{position:relative}
.game-topbar__hamburger{
  background:rgba(255,255,255,.15);color:#fff;border:none;
  width:40px;height:40px;border-radius:10px;cursor:pointer;
  display:inline-flex;flex-direction:column;align-items:center;justify-content:center;gap:4px;
  padding:0;transition:background .15s ease,transform .15s ease;
}
.game-topbar__hamburger:hover{background:rgba(255,255,255,.25)}
.game-topbar__hamburger:active{transform:scale(.95)}
.game-topbar__hamburger span{
  display:block;width:18px;height:2px;background:currentColor;border-radius:2px;
  transition:transform .2s ease,opacity .2s ease;
}
.game-topbar__hamburger[aria-expanded="true"] span:nth-child(1){transform:translateY(6px) rotate(45deg)}
.game-topbar__hamburger[aria-expanded="true"] span:nth-child(2){opacity:0}
.game-topbar__hamburger[aria-expanded="true"] span:nth-child(3){transform:translateY(-6px) rotate(-45deg)}
.game-topbar__dropdown{
  position:absolute;top:calc(100% + 6px);right:0;
  min-width:300px;max-width:420px;
  background:rgba(72,61,139,.98);
  backdrop-filter:blur(10px);-webkit-backdrop-filter:blur(10px);
  border:1px solid rgba(255,255,255,.15);border-radius:12px;
  box-shadow:0 10px 30px rgba(0,0,0,.4);
  padding:6px;margin:0;list-style:none;display:none;
  max-height:calc(100vh - 80px);overflow-y:auto;z-index:1001;
  font-family:'Nunito',system-ui,sans-serif;
}
.game-topbar__dropdown.is-open{display:block}
.game-topbar__dropdown li{list-style:none;margin:0}
.game-topbar__dropdown a{
  display:flex;align-items:center;gap:10px;padding:12px 16px;
  color:#fff;text-decoration:none;font-weight:700;font-size:1.9rem;
  text-transform:uppercase;letter-spacing:.04em;
  border-radius:8px;transition:background .15s ease;white-space:nowrap;
}
.game-topbar__dropdown a:hover,.game-topbar__dropdown a:focus{background:rgba(255,255,255,.12)}
.game-topbar__dropdown .menu-emoji{display:inline-block;width:1.2em;text-align:center}

/* ===== HUD ===== */
.hud{
  flex:0 0 auto;
  display:grid;grid-template-columns:1fr auto 1fr;align-items:center;gap:10px;
  background:
    linear-gradient(180deg, var(--glass-2) 0%, var(--glass-1) 100%),
    var(--glass-base);
  backdrop-filter:blur(22px) saturate(160%);
  -webkit-backdrop-filter:blur(22px) saturate(160%);
  border-radius:var(--r-md);
  padding:12px 16px 10px;
  box-shadow:var(--shadow);
  border:1px solid var(--glass-edge);
  position:relative;
  overflow:hidden;
}
/* horní odlesk (simulace skla) */
.hud::before{
  content:"";position:absolute;top:0;left:8%;right:8%;height:1px;
  background:linear-gradient(90deg, transparent, var(--glass-inner), transparent);
  pointer-events:none;
}
/* jemný gradient highlight uvnitř */
.hud::after{
  content:"";position:absolute;inset:0;border-radius:inherit;pointer-events:none;
  background:linear-gradient(135deg, rgba(255,255,255,.08) 0%, transparent 40%, transparent 60%, rgba(0,0,0,.08) 100%);
}
.hud > *{position:relative;z-index:1}

.hud-cell{
  display:flex;flex-direction:column;align-items:center;line-height:1.05;gap:4px;
  padding:4px 6px;
  border-radius:12px;
  position:relative;
}
.hud-cell .lbl{font-size:11px;letter-spacing:.1em;text-transform:uppercase;color:var(--ink-soft);font-weight:600}
.hud-cell .val{
  font-family:'Baloo 2';font-weight:800;font-size:22px;color:var(--accent);
  text-shadow:0 0 10px rgba(255,209,102,.4), 0 2px 4px rgba(0,0,0,.3);
}

/* Hvězdná řada NAD HUDem — 10 hvězd, bez rámečku ani popisku, jen samotné hvězdy */
.stars-row{
  flex:0 0 auto;
  display:flex;flex-direction:column;align-items:center;gap:2px;
  padding:4px 6px 0;
}

/* Hvězdy: vždy MAX_STARS slotů, plné nebo prázdné - bez rámečků, čistě zářivé */
.streak{display:flex;gap:4px;align-items:center;justify-content:center;min-height:24px;flex-wrap:wrap}
.streak .star-slot{
  font-size:24px;line-height:1;display:inline-flex;align-items:center;justify-content:center;
  width:26px;height:26px;position:relative;
  transition:transform .3s var(--pop), filter .3s ease;
}
.streak .star-slot.empty{
  opacity:.35;
  filter:grayscale(.6) brightness(.7);
}
.streak .star-slot.filled{
  animation:starPulse 2.2s ease-in-out infinite;
  filter:
    drop-shadow(0 0 6px rgba(255,209,102,.95))
    drop-shadow(0 0 14px rgba(255,209,102,.7))
    drop-shadow(0 0 22px rgba(255,180,77,.45));
}
.streak .star-slot.filled.s0{animation-delay:0s}
.streak .star-slot.filled.s1{animation-delay:.10s}
.streak .star-slot.filled.s2{animation-delay:.20s}
.streak .star-slot.filled.s3{animation-delay:.30s}
.streak .star-slot.filled.s4{animation-delay:.40s}
.streak .star-slot.filled.s5{animation-delay:.50s}
.streak .star-slot.filled.s6{animation-delay:.60s}
.streak .star-slot.filled.s7{animation-delay:.70s}
.streak .star-slot.filled.s8{animation-delay:.80s}
.streak .star-slot.filled.s9{animation-delay:.90s}
@keyframes starPulse{
  0%,100%{transform:scale(1) rotate(0)}
  50%{transform:scale(1.18) rotate(8deg)}
}

/* Streak dots: tečky pod hvězdami = postup k další hvězdě */
.streak-dots{
  display:flex;gap:5px;justify-content:center;margin-top:4px;min-height:8px;
}
.streak-dots .dot{
  width:7px;height:7px;border-radius:50%;
  background:rgba(255,255,255,.15);
  border:1px solid rgba(255,255,255,.3);
  transition:all .3s var(--pop);
}
.streak-dots .dot.on{
  background:var(--accent-2);
  border-color:var(--accent-2);
  box-shadow:0 0 10px rgba(6,214,160,.8), 0 0 18px rgba(6,214,160,.4);
  transform:scale(1.2);
}

/* ===== Trofejní žebřík (sdíleno: Sčítátko / Násobítko / Písmenka) ===== */

/* Zhasnutý pohár/medaile: 🏆/🥇 nemají obrysovou variantu jako ☆ → stejné emoji,
   ztlumené. Kombinuje se s .star-slot.empty (rozměry); grayscale(1) přebíjí jeho filter. */
.streak .star-slot.dim{
  filter:grayscale(1);
  opacity:.35;
}

/* Proměna řady odznaků (hvězdy→poháry→medaile→finále): krátký morph po re-renderu */
.streak.row-swap{
  animation:rowMorphIn .7s var(--pop);
}
@keyframes rowMorphIn{
  0%{transform:scale(.6);opacity:0;filter:blur(4px)}
  60%{transform:scale(1.12);opacity:1;filter:blur(0)}
  100%{transform:scale(1);opacity:1}
}
@media (prefers-reduced-motion: reduce){
  .streak.row-swap{animation:none}
}

/* level progress */
.progress{
  flex:0 0 auto;
  background:
    linear-gradient(180deg, var(--glass-2) 0%, var(--glass-1) 100%),
    var(--glass-base);
  backdrop-filter:blur(22px) saturate(160%);
  -webkit-backdrop-filter:blur(22px) saturate(160%);
  border-radius:var(--r-md);padding:10px 16px 12px;
  box-shadow:var(--shadow);
  border:1px solid var(--glass-edge);
  position:relative;
  overflow:hidden;
}
.progress::before{
  content:"";position:absolute;top:0;left:8%;right:8%;height:1px;
  background:linear-gradient(90deg, transparent, var(--glass-inner), transparent);
  pointer-events:none;
}
.progress > *{position:relative;z-index:1}
.progress-head{display:flex;justify-content:space-between;align-items:baseline;margin-bottom:8px;gap:8px}
.progress-head .lbl{font-size:13px;color:var(--ink-soft);font-weight:600}
.progress-head .lbl b{color:var(--ink);font-weight:700}