/* ── RESET & VARIABILI ── */
*,*::before,*::after{box-sizing:border-box;margin:0;padding:0;}
:root{
  --blu:#2563EB; --blu-scuro:#1D4ED8; --oro:#F59E0B;
  --verde:#10B981; --rosso:#EF4444; --viola:#7C3AED;
  --bg:#F5F0E8; --bg2:#EDE8DE; --testo:#1E293B;
  --bordo:#CBD5E1; --ombra:0 2px 12px rgba(0,0,0,.1);
  --raggio:12px; --trans:.18s ease;
}
html,body{height:100%;font-family:'Segoe UI',system-ui,sans-serif;background:var(--bg);color:var(--testo);overflow-x:hidden;}

/* ── HEADER ── */
#header{background:var(--blu);color:#fff;padding:0 16px;position:sticky;top:0;z-index:100;box-shadow:0 2px 8px rgba(0,0,0,.2);}
.header-inner{display:flex;align-items:center;gap:12px;height:56px;max-width:1100px;margin:0 auto;}
.logo{font-size:1.2rem;font-weight:800;letter-spacing:-.5px;white-space:nowrap;}
.logo span{color:var(--oro);}
.mode-tabs{display:flex;gap:4px;flex:1;justify-content:center;}
.tab-mode{background:rgba(255,255,255,.15);border:none;color:rgba(255,255,255,.8);padding:7px 14px;border-radius:20px;cursor:pointer;font-size:.82rem;font-weight:600;transition:var(--trans);white-space:nowrap;min-height:36px;}
.tab-mode.attivo{background:#fff;color:var(--blu);}
.header-right{display:flex;align-items:center;gap:8px;margin-left:auto;}
.btn-hdr{background:rgba(255,255,255,.12);border:1px solid rgba(255,255,255,.25);color:#fff;padding:6px 12px;border-radius:18px;cursor:pointer;font-size:.78rem;font-weight:600;transition:var(--trans);white-space:nowrap;min-height:34px;display:flex;align-items:center;gap:4px;}
.btn-hdr:hover{background:rgba(255,255,255,.22);}
#btn-installa{display:none;border-color:var(--oro);color:var(--oro);}
.hamburger{display:none;background:none;border:none;color:#fff;font-size:1.4rem;cursor:pointer;padding:4px 8px;min-width:40px;min-height:40px;align-items:center;justify-content:center;}

/* ── MAIN ── */
#app{max-width:1100px;margin:0 auto;padding:16px;}

/* ── SELEZIONE ── */
.schermata{background:#fff;border-radius:var(--raggio);padding:24px;box-shadow:var(--ombra);}
.schermata h2{font-size:1.5rem;font-weight:800;margin-bottom:6px;color:var(--blu-scuro);}
.schermata p{color:#64748B;margin-bottom:16px;font-size:.9rem;}
.filtri{display:flex;gap:8px;flex-wrap:wrap;margin-bottom:20px;}
.filtro{background:var(--bg);border:2px solid var(--bordo);color:var(--testo);padding:8px 16px;border-radius:20px;cursor:pointer;font-size:.82rem;font-weight:600;transition:var(--trans);min-height:40px;}
.filtro.attivo{background:var(--blu);border-color:var(--blu);color:#fff;}
.puzzle-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(200px,1fr));gap:12px;}
.puzzle-card{background:var(--bg);border:2px solid var(--bordo);border-radius:var(--raggio);padding:16px;cursor:pointer;transition:var(--trans);position:relative;overflow:hidden;}
.puzzle-card:hover{border-color:var(--blu);transform:translateY(-2px);box-shadow:0 6px 20px rgba(37,99,235,.15);}
.puzzle-card .diff{position:absolute;top:10px;right:10px;font-size:.68rem;font-weight:700;padding:3px 8px;border-radius:10px;text-transform:uppercase;}
.diff-facile{background:#D1FAE5;color:#065F46;}
.diff-medio{background:#FEF3C7;color:#92400E;}
.diff-difficile{background:#FEE2E2;color:#991B1B;}
.puzzle-card h3{font-size:1rem;font-weight:700;margin-bottom:4px;margin-right:60px;}
.puzzle-card p{font-size:.78rem;color:#64748B;margin:0;}

/* ── GIOCO CRUCIVERBA ── */
#game-wrap{display:grid;grid-template-columns:1fr 300px;gap:16px;align-items:start;}
#game-left{background:#fff;border-radius:var(--raggio);overflow:hidden;box-shadow:var(--ombra);}
.game-header{background:linear-gradient(135deg,var(--blu),var(--blu-scuro));color:#fff;padding:14px 18px;display:flex;align-items:center;justify-content:space-between;flex-wrap:wrap;gap:8px;}
.game-title{font-size:1.1rem;font-weight:800;}
.game-toolbar{display:flex;gap:6px;flex-wrap:wrap;}
.btn{padding:8px 16px;border:none;border-radius:20px;cursor:pointer;font-size:.82rem;font-weight:700;transition:var(--trans);min-height:40px;display:inline-flex;align-items:center;gap:5px;}
.btn-verde{background:var(--verde);color:#fff;}
.btn-rosso{background:var(--rosso);color:#fff;}
.btn-oro{background:var(--oro);color:#1a1a1a;}
.btn-blu{background:var(--blu);color:#fff;}
.btn:hover{opacity:.88;transform:translateY(-1px);}
#griglia-container{padding:16px;display:flex;justify-content:center;overflow:auto;}
#griglia{display:inline-grid;gap:2px;background:#94A3B8;padding:2px;border-radius:6px;}
.cella{position:relative;background:#fff;}
.cella.nera{background:#1E293B;}
.cella-num{position:absolute;top:1px;left:2px;font-size:.42rem;font-weight:700;color:#1E293B;line-height:1;z-index:1;pointer-events:none;}
.cella-input{width:100%;height:100%;border:none;background:transparent;text-align:center;font-weight:800;text-transform:uppercase;cursor:pointer;font-family:inherit;color:#1E293B;caret-color:transparent;outline:none;padding:0;display:flex;align-items:center;justify-content:center;}
.cella.attiva .cella-input{background:#DBEAFE;}
.cella.parola .cella-input{background:#EFF6FF;}
.cella.corretta{background:#D1FAE5!important;}
.cella.corretta .cella-input{color:var(--verde)!important;}
.cella.errata{background:#FEE2E2!important;animation:shake .3s;}
.cella.errata .cella-input{color:var(--rosso)!important;}
.cella.rivelata{background:#FEF9C3!important;}
.cella.rivelata .cella-input{color:var(--oro)!important;}
@keyframes shake{0%,100%{transform:translateX(0);}25%{transform:translateX(-3px);}75%{transform:translateX(3px)};}

/* ── INDIZIO CORRENTE ── */
#indizio-bar{background:var(--blu-scuro);color:#fff;padding:10px 16px;display:flex;align-items:center;gap:10px;min-height:44px;}
#indizio-dir{background:var(--oro);color:#1a1a1a;font-size:.65rem;font-weight:700;padding:2px 8px;border-radius:8px;}
#indizio-testo{font-size:.88rem;font-style:italic;flex:1;}

/* ── SIDEBAR CRUCIVERBA ── */
#game-right{display:flex;flex-direction:column;gap:12px;}
.pannello{background:#fff;border-radius:var(--raggio);box-shadow:var(--ombra);overflow:hidden;}
.pannello-head{padding:12px 16px;font-weight:700;font-size:.9rem;background:var(--bg2);border-bottom:1px solid var(--bordo);}
.stat-grid{display:grid;grid-template-columns:1fr 1fr;gap:1px;background:var(--bordo);}
.stat-box{background:#fff;padding:12px;text-align:center;}
.stat-label{font-size:.7rem;color:#64748B;margin-bottom:2px;}
.stat-val{font-size:1.3rem;font-weight:800;color:var(--blu);}
.indizi-tabs{display:flex;border-bottom:1px solid var(--bordo);}
.tab-indizio{flex:1;padding:8px;border:none;background:none;cursor:pointer;font-size:.8rem;font-weight:600;color:#64748B;transition:var(--trans);}
.tab-indizio.attivo{color:var(--blu);border-bottom:2px solid var(--blu);}
.indizi-lista{max-height:320px;overflow-y:auto;padding:6px;}
.indizio-item{padding:8px 10px;border-radius:8px;cursor:pointer;font-size:.82rem;transition:var(--trans);display:flex;gap:8px;align-items:baseline;margin-bottom:2px;}
.indizio-item:hover{background:var(--bg);}
.indizio-item.attivo{background:#DBEAFE;color:var(--blu);}
.indizio-num{font-weight:800;min-width:24px;color:var(--blu);}

/* ── WORD SEARCH ── */
#ws-wrap{display:grid;grid-template-columns:1fr 260px;gap:16px;align-items:start;}
#ws-left{background:#fff;border-radius:var(--raggio);overflow:hidden;box-shadow:var(--ombra);}
#ws-griglia-wrap{padding:12px;display:flex;justify-content:center;overflow:auto;user-select:none;-webkit-user-select:none;}
#ws-griglia{display:inline-grid;gap:1px;background:#CBD5E1;padding:1px;border-radius:4px;cursor:default;}
.ws-cella{background:#fff;display:flex;align-items:center;justify-content:center;font-weight:700;text-transform:uppercase;font-size:.85rem;color:#1E293B;transition:background .1s;user-select:none;}
.ws-cella.sel{background:#BFDBFE;}
.ws-cella.found{background:#A7F3D0;color:#065F46;}
#ws-right{display:flex;flex-direction:column;gap:12px;}
.ws-parole-lista{display:flex;flex-direction:column;gap:4px;padding:8px;}
.ws-parola{font-size:.85rem;font-weight:600;padding:6px 10px;border-radius:6px;transition:var(--trans);}
.ws-parola.found{text-decoration:line-through;color:var(--verde);background:#D1FAE5;}

/* ── TASTIERA VIRTUALE ── */
#tastiera{position:fixed;bottom:0;left:0;right:0;background:linear-gradient(180deg,#E2E8F0,#CBD5E1);padding:8px 8px 12px;z-index:200;transform:translateY(100%);transition:transform .25s ease;box-shadow:0 -4px 16px rgba(0,0,0,.15);}
#tastiera.visibile{transform:translateY(0);}
.tast-header{display:flex;justify-content:space-between;align-items:center;margin-bottom:6px;padding:0 2px;}
.tast-indizio{font-size:.78rem;font-weight:600;color:#1E293B;flex:1;overflow:hidden;text-overflow:ellipsis;white-space:nowrap;}
.tast-chiudi{background:var(--rosso);color:#fff;border:none;border-radius:6px;padding:5px 12px;cursor:pointer;font-size:.78rem;font-weight:700;min-height:32px;}
.tast-riga{display:flex;justify-content:center;gap:4px;margin-bottom:4px;}
.tasto{background:#fff;border:1px solid #94A3B8;border-radius:6px;padding:0;cursor:pointer;font-size:1rem;font-weight:700;color:#1E293B;transition:background .1s;display:flex;align-items:center;justify-content:center;min-height:42px;flex:1;max-width:38px;touch-action:manipulation;-webkit-tap-highlight-color:transparent;}
.tasto:active{background:#BFDBFE;}
.tasto.speciale{background:#64748B;color:#fff;max-width:56px;font-size:.75rem;}
body.tast-aperta{padding-bottom:185px;}

/* ── MODAL VITTORIA ── */
.modal-overlay{position:fixed;inset:0;background:rgba(0,0,0,.5);z-index:500;display:flex;align-items:center;justify-content:center;padding:16px;}
.modal-box{background:#fff;border-radius:20px;padding:32px 24px;max-width:380px;width:100%;text-align:center;box-shadow:0 24px 60px rgba(0,0,0,.3);}
.modal-emoji{font-size:3.5rem;margin-bottom:12px;}
.modal-title{font-size:1.6rem;font-weight:800;margin-bottom:8px;color:var(--blu-scuro);}
.modal-sub{color:#64748B;margin-bottom:20px;font-size:.9rem;}
.modal-btns{display:flex;gap:10px;justify-content:center;flex-wrap:wrap;}

/* ── TOAST ── */
#toast{position:fixed;bottom:20px;left:50%;transform:translateX(-50%) translateY(100px);background:#1E293B;color:#fff;padding:10px 20px;border-radius:20px;font-size:.85rem;font-weight:600;z-index:600;transition:transform .3s ease;pointer-events:none;white-space:nowrap;}
#toast.mostra{transform:translateX(-50%) translateY(0);}

/* ── CANVAS CONFETTI ── */
#confetti-canvas{position:fixed;inset:0;pointer-events:none;z-index:450;display:none;}

/* ── LOADING ── */
#loading{position:fixed;inset:0;background:var(--blu);color:#fff;display:flex;flex-direction:column;align-items:center;justify-content:center;z-index:999;transition:opacity .4s;}
.load-logo{font-size:2.5rem;font-weight:900;letter-spacing:-1px;margin-bottom:8px;}
.load-sub{font-size:1rem;opacity:.7;margin-bottom:28px;}
.load-spin{width:40px;height:40px;border:4px solid rgba(255,255,255,.3);border-top-color:#fff;border-radius:50%;animation:spin .8s linear infinite;}
@keyframes spin{to{transform:rotate(360deg);}

/* ── RESPONSIVE ── */
@media(max-width:900px){
  #game-wrap{grid-template-columns:1fr;}
  #game-right{display:none;}
  #ws-wrap{grid-template-columns:1fr;}
  #ws-right .pannello:first-child{display:none;}
}
@media(max-width:640px){
  #header .header-right{display:none;}
  #header .header-right.aperto{display:flex;flex-direction:column;position:absolute;top:56px;right:0;background:var(--blu);padding:12px;gap:8px;min-width:160px;box-shadow:0 8px 20px rgba(0,0,0,.3);}
  .hamburger{display:flex;}
  .mode-tabs{justify-content:flex-start;}
  .schermata{padding:16px;}
  .puzzle-grid{grid-template-columns:1fr 1fr;}
  #game-wrap{grid-template-columns:1fr;}
  #ws-wrap{grid-template-columns:1fr;}
  #app{padding:10px;}
  .btn{min-height:44px;}
}
@media(max-width:400px){
  .puzzle-grid{grid-template-columns:1fr;}
  .logo{font-size:1rem;}
}