:root{
  --bg:#170d08; --panel:#24140e; --gold:#f6a62b; --cream:#fff3d7; --red:#ff2a2a;
  --line:rgba(255,255,255,.15); --shadow:0 16px 50px rgba(0,0,0,.45);
}
*{box-sizing:border-box} html,body{margin:0;width:100%;height:100%;background:radial-gradient(circle at 50% 0,#462313 0,#170d08 56%,#0b0705 100%);color:var(--cream);font-family:Inter,system-ui,-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif;overflow:hidden}
button,a{-webkit-tap-highlight-color:transparent} button{font:inherit}
.app{height:100dvh;display:flex;flex-direction:column;padding:max(8px,env(safe-area-inset-top)) 12px max(6px,env(safe-area-inset-bottom));gap:8px;opacity:0;transition:opacity .35s ease}
.app.ready{opacity:1}.topbar{display:flex;align-items:center;justify-content:space-between;gap:18px;flex:0 0 auto;max-width:1500px;width:100%;margin:0 auto}
.brand{min-width:0}.eyebrow{font-size:11px;letter-spacing:.22em;color:var(--gold);font-weight:900}.brand h1{margin:0;font-size:clamp(28px,4vw,58px);line-height:.92;letter-spacing:.02em;text-shadow:0 3px 0 rgba(0,0,0,.4)}
.brand p{margin:6px 0 0;font-size:clamp(11px,1.2vw,15px);opacity:.84;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.hud{display:flex;align-items:center;gap:7px;flex-wrap:nowrap}.stat{padding:6px 10px;border:1px solid var(--line);background:rgba(255,255,255,.05);border-radius:12px;min-width:70px;text-align:center;box-shadow:inset 0 1px 0 rgba(255,255,255,.04)}.stat span{display:block;font-size:9px;text-transform:uppercase;letter-spacing:.12em;opacity:.68}.stat strong{display:block;font-size:17px;line-height:1.05}.icon-btn{width:38px;height:38px;border-radius:11px;border:1px solid var(--line);color:var(--cream);background:rgba(255,255,255,.06);cursor:pointer;font-size:19px;font-weight:900}.icon-btn:hover{background:rgba(255,255,255,.12)}
.game-shell{flex:1 1 auto;min-height:0;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:7px}.instruction{font-size:clamp(11px,1.2vw,14px);opacity:.88;text-align:center;flex:0 0 auto}.instruction strong{color:var(--gold)}
.pair-grid{width:100%;flex:1 1 auto;min-height:0;display:flex;align-items:center;justify-content:center;gap:clamp(8px,1.2vw,18px)}
.board{position:relative;height:min(64dvh,33vw);aspect-ratio:4/3;border-radius:16px;overflow:hidden;border:2px solid rgba(246,166,43,.5);background:#100b08;box-shadow:var(--shadow);cursor:crosshair;touch-action:manipulation;user-select:none;flex:0 0 auto}.board img{display:block;width:100%;height:100%;object-fit:cover;pointer-events:none;user-select:none}.board.shake{animation:shake .34s linear}.board::after{content:"";position:absolute;inset:0;pointer-events:none;box-shadow:inset 0 0 0 1px rgba(255,255,255,.08),inset 0 0 35px rgba(0,0,0,.22)}
.markers,.solutions{position:absolute;inset:0;pointer-events:none}.marker{position:absolute;transform:translate(-50%,-50%);border:3px solid #ffe55c;border-radius:50%;box-shadow:0 0 0 3px rgba(0,0,0,.45),0 0 18px rgba(255,229,92,.95);animation:pop .26s ease-out}.marker::after{content:"✓";position:absolute;left:50%;top:50%;transform:translate(-50%,-50%);font-weight:1000;color:#fff;font-size:clamp(12px,1.6vw,24px);text-shadow:0 2px 4px #000}.solution-marker{position:absolute;transform:translate(-50%,-50%);border:3px dashed #48e5ff;border-radius:50%;background:rgba(72,229,255,.12);box-shadow:0 0 0 2px rgba(0,0,0,.45),0 0 16px rgba(72,229,255,.7)}.solution-marker::after{content:attr(data-label);position:absolute;left:50%;top:50%;transform:translate(-50%,-50%);font-weight:1000;color:#fff;font-size:clamp(12px,1.4vw,22px);text-shadow:0 2px 4px #000}
footer{flex:0 0 auto;display:flex;align-items:center;justify-content:center;gap:7px;font-size:10px;opacity:.68;white-space:nowrap}footer a{color:inherit;text-decoration:none}footer a:hover{color:var(--gold)}
.preloader,.modal,.wrong-overlay{position:fixed;inset:0;display:flex;align-items:center;justify-content:center;z-index:100;background:radial-gradient(circle at center,rgba(80,35,15,.96),rgba(8,5,3,.99));padding:20px}.preloader.hidden{display:none}.pre-card,.modal-card{width:min(560px,94vw);border:1px solid rgba(246,166,43,.3);background:rgba(35,19,12,.94);border-radius:24px;padding:clamp(24px,5vw,44px);box-shadow:0 25px 90px #000;text-align:center}.pre-kicker,.modal-kicker{font-size:11px;letter-spacing:.22em;font-weight:900;color:var(--gold)}.pre-card h1,.modal-card h2{margin:8px 0 8px;font-size:clamp(38px,7vw,70px);line-height:.92}.modal-card h2{font-size:clamp(30px,5vw,50px)}.pre-card p,.modal-card p{opacity:.82;line-height:1.45}.progress{height:12px;background:rgba(255,255,255,.08);border-radius:99px;overflow:hidden;margin:22px 0 8px}.progress span{display:block;height:100%;width:0;background:linear-gradient(90deg,#f28322,#ffc44e);transition:width .2s}.progress-text{font-weight:900;color:var(--gold);margin-bottom:18px}.primary,.secondary{border:0;border-radius:14px;padding:13px 18px;font-weight:1000;letter-spacing:.04em;cursor:pointer;text-decoration:none;display:inline-flex;justify-content:center;align-items:center}.primary{background:linear-gradient(180deg,#ffbc3d,#f28a1f);color:#241207;box-shadow:0 8px 24px rgba(242,138,31,.25)}.primary:disabled{opacity:.4;cursor:not-allowed}.secondary{background:rgba(255,255,255,.08);color:#fff;border:1px solid var(--line)}
.wrong-overlay{z-index:120;background:rgba(255,0,0,.35);opacity:0;pointer-events:none;flex-direction:column;backdrop-filter:saturate(1.7);transition:opacity .08s}.wrong-overlay.show{opacity:1;animation:redFlash .5s ease}.wrong-x{font-family:Arial Black,Impact,sans-serif;font-size:min(54vw,54vh);line-height:.65;color:#ff1515;text-shadow:0 0 10px #fff,0 0 36px #8d0000,8px 8px 0 #2a0000;transform:rotate(-8deg)}.wrong-text{max-width:94vw;text-align:center;font-size:clamp(22px,5vw,66px);font-weight:1000;line-height:.96;text-transform:uppercase;color:#fff;text-shadow:0 4px 0 #9d0000,0 0 18px #000;margin-top:18px}.modal{z-index:110;background:rgba(5,3,2,.78);backdrop-filter:blur(12px);opacity:0;pointer-events:none;transition:opacity .2s}.modal.show{opacity:1;pointer-events:auto}.modal-actions{display:flex;gap:10px;justify-content:center;flex-wrap:wrap;margin-top:18px}
@keyframes shake{0%,100%{transform:translateX(0)}15%{transform:translateX(-10px) rotate(-.5deg)}30%{transform:translateX(9px) rotate(.5deg)}45%{transform:translateX(-7px)}60%{transform:translateX(6px)}75%{transform:translateX(-3px)}}@keyframes pop{0%{transform:translate(-50%,-50%) scale(.3);opacity:0}75%{transform:translate(-50%,-50%) scale(1.18)}100%{transform:translate(-50%,-50%) scale(1);opacity:1}}@keyframes redFlash{0%,100%{background:rgba(255,0,0,.18)}50%{background:rgba(255,0,0,.72)}}
@media (max-width:780px) and (orientation:portrait){.app{padding-left:7px;padding-right:7px;gap:4px}.topbar{display:grid;grid-template-columns:1fr auto;gap:6px}.eyebrow{font-size:8px}.brand h1{font-size:27px}.brand p{font-size:9px;max-width:56vw}.hud{gap:4px}.stat{padding:4px 5px;min-width:48px;border-radius:9px}.stat span{font-size:7px}.stat strong{font-size:13px}.icon-btn{width:31px;height:31px;font-size:16px;border-radius:8px}.game-shell{gap:3px}.instruction{font-size:10px}.pair-grid{flex-direction:column;gap:5px}.board{height:min(31dvh,69vw);max-width:98vw;border-radius:11px;border-width:1px}.marker{border-width:2px;box-shadow:0 0 0 2px rgba(0,0,0,.45),0 0 10px rgba(255,229,92,.95)}footer{font-size:8px;gap:4px}}
@media (max-height:650px) and (orientation:landscape){.app{gap:3px;padding-top:5px;padding-bottom:4px}.brand h1{font-size:30px}.brand p{display:none}.eyebrow{font-size:8px}.stat{padding:4px 7px}.stat strong{font-size:14px}.icon-btn{width:31px;height:31px}.instruction{font-size:10px}.board{height:min(69dvh,33vw)}footer{font-size:8px}}
@media (prefers-reduced-motion:reduce){*,*::before,*::after{animation-duration:.01ms!important;animation-iteration-count:1!important;transition-duration:.01ms!important}}


/* Menu segreto livelli: tasto C */
.secret-level-menu{position:fixed;inset:0;z-index:115;display:flex;align-items:flex-start;justify-content:center;padding:clamp(70px,11vh,120px) 14px 14px;background:rgba(5,3,2,.58);backdrop-filter:blur(7px);opacity:0;pointer-events:none;transition:opacity .16s ease}
.secret-level-menu.show{opacity:1;pointer-events:auto}
.secret-level-card{width:min(560px,94vw);background:linear-gradient(180deg,rgba(48,25,15,.98),rgba(24,13,9,.99));border:1px solid rgba(246,166,43,.5);border-radius:20px;padding:18px;box-shadow:0 24px 70px rgba(0,0,0,.65),inset 0 1px 0 rgba(255,255,255,.05);transform:translateY(-12px) scale(.97);transition:transform .16s ease}
.secret-level-menu.show .secret-level-card{transform:translateY(0) scale(1)}
.secret-level-head{display:flex;align-items:flex-start;justify-content:space-between;gap:14px;margin-bottom:14px}
.secret-level-kicker{font-size:9px;letter-spacing:.18em;font-weight:1000;color:var(--gold)}
.secret-level-head h2{margin:3px 0 0;font-size:clamp(24px,4vw,38px);line-height:1}
.secret-level-close{width:38px;height:38px;flex:0 0 38px;border-radius:11px;border:1px solid var(--line);background:rgba(255,255,255,.07);color:#fff;font-size:27px;line-height:1;cursor:pointer}
.secret-level-buttons{display:grid;grid-template-columns:repeat(3,1fr);gap:9px}
.secret-level-btn{border:1px solid rgba(246,166,43,.32);background:rgba(255,255,255,.055);color:var(--cream);border-radius:13px;padding:13px 8px;cursor:pointer;font-weight:900;transition:transform .12s ease,background .12s ease,border-color .12s ease}
.secret-level-btn span{display:block;font-size:10px;letter-spacing:.12em;text-transform:uppercase;opacity:.66;margin-bottom:2px}
.secret-level-btn strong{font-size:21px}
.secret-level-btn:hover,.secret-level-btn:focus-visible{background:rgba(246,166,43,.16);border-color:rgba(246,166,43,.75);transform:translateY(-1px);outline:none}
.secret-level-btn.current{background:linear-gradient(180deg,rgba(246,166,43,.27),rgba(246,166,43,.11));border-color:var(--gold);box-shadow:0 0 0 1px rgba(246,166,43,.16),0 0 20px rgba(246,166,43,.12)}
.secret-level-hint{margin:13px 0 0;text-align:center;font-size:11px;opacity:.63}
.secret-tools{margin-top:12px;display:flex;flex-direction:column;gap:10px}.secret-secondary-btn{border:1px solid rgba(246,166,43,.4);background:rgba(255,255,255,.06);color:var(--cream);border-radius:12px;padding:11px 12px;cursor:pointer;font-weight:900;letter-spacing:.03em;transition:transform .12s ease,background .12s ease,border-color .12s ease}.secret-secondary-btn:hover,.secret-secondary-btn:focus-visible{background:rgba(246,166,43,.16);border-color:rgba(246,166,43,.75);transform:translateY(-1px);outline:none}.secret-secondary-btn.danger{border-color:rgba(255,74,74,.4)}.secret-secondary-btn.danger:hover,.secret-secondary-btn.danger:focus-visible{background:rgba(255,74,74,.16);border-color:rgba(255,74,74,.72)}.secret-solution-panel{border:1px solid rgba(255,255,255,.09);background:rgba(0,0,0,.16);border-radius:16px;padding:12px}.secret-solution-title{font-size:12px;line-height:1.35;opacity:.82;margin-bottom:9px}.secret-solution-actions{display:grid;grid-template-columns:repeat(2,1fr);gap:8px}

.secret-level-hint strong{color:var(--gold)}
@media (max-width:520px){.secret-level-menu{padding-top:72px}.secret-level-card{padding:14px}.secret-level-buttons{grid-template-columns:repeat(2,1fr);gap:7px}.secret-level-btn{padding:10px 6px}.secret-level-btn strong{font-size:18px}.secret-solution-actions{grid-template-columns:1fr}}