/* Layout: una colonna stretta come un quaderno a quadretti; percorso a zig-zag, lezione a schermo intero con barra di controllo in basso */
:root{
  --paper:#f4f7fc; --grid:#dfe7f3; --card:#ffffff; --ink:#1b2747; --muted:#5f6c8a;
  --blue:#2457d6; --blue-d:#173f9f; --sun:#ffc531; --sun-d:#d99a00;
  --ok:#23a26a; --ok-bg:#dcf5e8; --bad:#d9413a; --bad-bg:#fde3e1;
  --line:#cfd8e8; --lock:#c9d1df; --lock-d:#a9b3c6;
  --f-display:"Fredoka","Trebuchet MS",system-ui,sans-serif;
  --f-body:"Nunito","Segoe UI",system-ui,sans-serif;
}
@media (prefers-color-scheme:dark){:root:not([data-theme="light"]){
  --paper:#121a2e; --grid:#1b2540; --card:#1a2440; --ink:#e8edf8; --muted:#9aa7c4;
  --blue:#5b8cff; --blue-d:#3a63c9; --sun:#ffcf4d; --sun-d:#c99300;
  --ok:#3fcf8e; --ok-bg:#163b2c; --bad:#ff6b63; --bad-bg:#46201f;
  --line:#2c3a5e; --lock:#2c3756; --lock-d:#1f2842; color-scheme:dark}}
:root[data-theme="dark"]{
  --paper:#121a2e; --grid:#1b2540; --card:#1a2440; --ink:#e8edf8; --muted:#9aa7c4;
  --blue:#5b8cff; --blue-d:#3a63c9; --sun:#ffcf4d; --sun-d:#c99300;
  --ok:#3fcf8e; --ok-bg:#163b2c; --bad:#ff6b63; --bad-bg:#46201f;
  --line:#2c3a5e; --lock:#2c3756; --lock-d:#1f2842; color-scheme:dark}

body{background:var(--paper);color:var(--ink);font-family:var(--f-body);font-size:17px;
  background-image:linear-gradient(var(--grid) 1px,transparent 1px),linear-gradient(90deg,var(--grid) 1px,transparent 1px);
  background-size:24px 24px;}
.wrap{max-width:560px;margin:0 auto;padding-left:max(16px,env(safe-area-inset-left,0px));padding-right:max(16px,env(safe-area-inset-right,0px));padding-block:16px 120px}
h1,h2,h3{font-family:var(--f-display);text-wrap:balance;margin:0}
button{font:inherit;color:inherit;cursor:pointer}
button:focus-visible,input:focus-visible{outline:3px solid var(--sun);outline-offset:2px}
svg{flex:none}

/* header */
.top{display:flex;align-items:center;justify-content:space-between;gap:12px;flex-wrap:wrap}
.brand{font-family:var(--f-display);font-weight:700;font-size:30px;color:var(--blue);letter-spacing:-.5px}
.brand span{color:var(--sun-d)}
.stats{display:flex;gap:8px}
.chip{display:flex;align-items:center;gap:6px;background:var(--card);border:2px solid var(--line);border-radius:999px;padding:4px 12px;font-weight:800;font-variant-numeric:tabular-nums}

.seg{display:grid;grid-template-columns:1fr 1fr;gap:8px;margin-top:18px}
.seg button{background:var(--card);border:2px solid var(--line);border-bottom-width:4px;border-radius:16px;padding:10px 12px;display:flex;align-items:center;gap:10px;font-weight:800;text-align:left}
.seg button[aria-pressed="true"]{border-color:var(--blue);background:color-mix(in srgb,var(--blue) 10%,var(--card))}
.code{font-family:var(--f-display);font-size:14px;background:var(--blue);color:#fff;border-radius:8px;padding:3px 7px;letter-spacing:.5px}
.seg small{display:block;color:var(--muted);font-weight:700;font-size:13px}

.goal{margin-top:14px;background:var(--card);border:2px solid var(--line);border-radius:16px;padding:12px 14px;display:grid;gap:8px}
.goal-row{display:flex;justify-content:space-between;font-weight:800;font-size:15px}
.goal-row span:last-child{color:var(--muted);font-variant-numeric:tabular-nums}
.bar{height:14px;border-radius:999px;background:var(--lock);overflow:hidden}
.bar i{display:block;height:100%;background:var(--sun);border-radius:999px;transition:width .4s}
.review{margin-top:10px;width:100%;display:flex;align-items:center;justify-content:space-between;gap:10px;background:var(--card);border:2px dashed var(--bad);border-radius:16px;padding:10px 14px;font-weight:800;color:var(--bad)}

/* path */
.unit{margin-top:28px;background:var(--blue);color:#fff;border-radius:18px;padding:14px 16px;display:flex;gap:12px;align-items:center}
.unit .n{font-family:var(--f-display);font-size:13px;letter-spacing:1px;text-transform:uppercase;opacity:.85}
.unit h3{font-size:22px}
.unit p{margin:2px 0 0;font-size:14px;opacity:.9}
.unit.locked{background:var(--lock);color:var(--muted)}
.nodes{display:grid;justify-items:center;gap:14px;padding-block:18px 4px}
.node{width:76px;height:70px;border-radius:50%;border:none;border-bottom:7px solid var(--lock-d);background:var(--lock);display:grid;place-items:center;color:var(--muted);position:relative}
.node.done{background:var(--blue);border-color:var(--blue-d);color:#fff}
.node.cur{background:var(--sun);border-color:var(--sun-d);color:#3a2a00}
.node.cur::after{content:"";position:absolute;inset:-9px;border-radius:50%;border:3px solid var(--sun);animation:ping 1.6s infinite}
.node .tag{position:absolute;top:-30px;background:var(--card);border:2px solid var(--line);color:var(--blue);font-family:var(--f-display);font-weight:700;font-size:14px;padding:2px 10px;border-radius:10px;white-space:nowrap}
.node:disabled{cursor:not-allowed}
@keyframes ping{0%{transform:scale(.9);opacity:1}100%{transform:scale(1.2);opacity:0}}
.foot{margin-top:30px;color:var(--muted);font-size:14px;text-align:center}
.warn{margin-top:14px;background:var(--bad-bg);color:var(--bad);border-radius:14px;padding:10px 14px;font-weight:700;font-size:14px}

/* lesson */
.lhead{display:flex;align-items:center;gap:12px}
.x{background:none;border:none;padding:6px;color:var(--muted)}
.prog{flex:1}.prog i{background:var(--ok)}
.hearts{display:flex;align-items:center;gap:4px;font-weight:800;color:var(--bad);font-variant-numeric:tabular-nums}
.task{margin-top:26px;display:grid;gap:18px}
.task h2{font-size:24px;line-height:1.25}
.q{display:flex;align-items:center;gap:12px;flex-wrap:wrap}
.bubble{background:var(--card);border:2px solid var(--line);border-radius:16px;padding:10px 16px;font-weight:800;font-size:20px}
.spk{background:var(--blue);border:none;border-bottom:4px solid var(--blue-d);color:#fff;border-radius:14px;width:52px;height:48px;display:grid;place-items:center}
.spk.big{width:110px;height:96px;border-radius:24px}
.spk.slow{background:var(--card);color:var(--blue);border:2px solid var(--line);border-bottom-width:4px;width:auto;padding:0 12px;font-weight:800;font-size:14px}
.opts{display:grid;grid-template-columns:1fr 1fr;gap:10px}
.opt,.tile{background:var(--card);border:2px solid var(--line);border-bottom-width:4px;border-radius:14px;padding:14px 10px;font-weight:800;font-size:18px;min-width:0;overflow-wrap:anywhere}
.opt[aria-pressed="true"],.tile.sel{border-color:var(--blue);background:color-mix(in srgb,var(--blue) 12%,var(--card));color:var(--blue)}
.tile.ok{border-color:var(--ok);background:var(--ok-bg);color:var(--ok);opacity:.55}
.tile.bad{border-color:var(--bad);background:var(--bad-bg);color:var(--bad);animation:shake .3s}
@keyframes shake{25%{transform:translateX(-4px)}75%{transform:translateX(4px)}}
.cols{display:grid;grid-template-columns:1fr 1fr;gap:10px}.cols>div{display:grid;gap:10px;min-width:0}
.line{min-height:62px;border-bottom:2px solid var(--line);display:flex;flex-wrap:wrap;gap:8px;align-content:flex-start;padding-bottom:8px}
.bank{display:flex;flex-wrap:wrap;gap:8px;justify-content:center}
.w{background:var(--card);border:2px solid var(--line);border-bottom-width:4px;border-radius:12px;padding:8px 12px;font-weight:800;font-size:17px}
.w.used{visibility:hidden}
.inp{width:100%;box-sizing:border-box;font:inherit;font-weight:800;font-size:20px;color:var(--ink);background:var(--card);border:2px solid var(--line);border-radius:14px;padding:14px}
.hint{color:var(--muted);font-size:14px;margin:0}

.dock{position:fixed;left:0;right:0;bottom:0;background:var(--card);border-top:2px solid var(--line);
  padding-left:max(16px,env(safe-area-inset-left,0px));padding-right:max(16px,env(safe-area-inset-right,0px));padding-block:14px calc(14px + env(safe-area-inset-bottom,0px))}
.dock.ok{background:var(--ok-bg);border-color:var(--ok)} .dock.bad{background:var(--bad-bg);border-color:var(--bad)}
.dock-in{max-width:560px;margin:0 auto;display:flex;align-items:center;gap:14px;flex-wrap:wrap;justify-content:space-between}
.fb{min-width:0;flex:1 1 220px}
.fb b{font-family:var(--f-display);font-size:22px;display:block}
.dock.ok .fb{color:var(--ok)} .dock.bad .fb{color:var(--bad)}
.go{background:var(--ok);color:#fff;border:none;border-bottom:5px solid color-mix(in srgb,var(--ok) 70%,#000);border-radius:16px;padding:14px 26px;font-family:var(--f-display);font-weight:700;font-size:19px;letter-spacing:.3px;min-width:170px;flex:1 0 auto;max-width:100%}
.dock.bad .go{background:var(--bad);border-bottom-color:color-mix(in srgb,var(--bad) 70%,#000)}
.go:disabled{background:var(--lock);color:var(--muted);border-bottom-color:var(--lock-d);cursor:not-allowed}
.go.alt{background:var(--card);color:var(--blue);border:2px solid var(--line);border-bottom-width:5px}

/* result */
.res{margin-top:40px;text-align:center;display:grid;gap:18px;justify-items:center}
.res h1{font-size:34px;color:var(--blue)}
.res p{margin:0;color:var(--muted);max-width:40ch}
.boxes{display:grid;grid-template-columns:repeat(3,1fr);gap:10px;width:100%}
.box{background:var(--card);border:2px solid var(--line);border-radius:16px;padding:12px 6px}
.box b{display:block;font-family:var(--f-display);font-size:26px;font-variant-numeric:tabular-nums}
.box span{font-size:12px;text-transform:uppercase;letter-spacing:.8px;color:var(--muted);font-weight:800}
.medal{width:120px;height:120px;border-radius:50%;background:var(--sun);border-bottom:8px solid var(--sun-d);display:grid;place-items:center;color:#3a2a00;animation:pop .5s}
@keyframes pop{0%{transform:scale(.3)}70%{transform:scale(1.1)}100%{transform:scale(1)}}
@media (prefers-reduced-motion:reduce){*{animation:none!important;transition:none!important}}
@media (max-width:380px){.opts{grid-template-columns:1fr}}

/* account */
.chip.user{cursor:pointer;color:var(--ink);padding-left:4px}
.chip.user:hover{border-color:var(--blue)}
.av{width:24px;height:24px;border-radius:50%;background:var(--blue);color:#fff;display:grid;place-items:center;font-family:var(--f-display);font-size:13px}
.board{margin-top:10px;background:var(--card);border:2px solid var(--line);border-radius:16px;padding:12px 14px;display:grid;gap:8px}
.board ol{list-style:none;margin:0;padding:0;display:grid;gap:4px}
.board li{display:grid;grid-template-columns:28px 1fr auto 52px;align-items:center;gap:8px;padding:6px 8px;border-radius:10px;font-weight:700;font-variant-numeric:tabular-nums}
.board li.me{background:color-mix(in srgb,var(--sun) 25%,var(--card))}
.board .pos{font-family:var(--f-display);color:var(--muted);text-align:center}
.board .nm{min-width:0;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.board .st{display:flex;align-items:center;gap:2px;color:var(--muted);font-size:14px}
.board .st svg{width:16px;height:16px}
.board b{text-align:right;font-family:var(--f-display);color:var(--blue)}
.login{max-width:400px;margin:8vh auto 0;display:grid;gap:14px}
.brand.big{font-size:44px;text-align:center}
.tagline{margin:-8px 0 0;text-align:center;color:var(--muted);font-weight:700}
.card{background:var(--card);border:2px solid var(--line);border-radius:20px;padding:16px;display:grid;gap:14px}
.tabs{display:grid;grid-template-columns:1fr 1fr;background:var(--paper);border-radius:12px;padding:4px;gap:4px}
.tabs button{border:none;background:none;border-radius:9px;padding:9px;font-weight:800;color:var(--muted)}
.tabs button[aria-selected="true"]{background:var(--card);color:var(--blue);box-shadow:0 1px 3px color-mix(in srgb,var(--ink) 15%,transparent)}
#lf{display:grid;gap:6px}
#lf label{font-weight:800;font-size:14px;margin-top:6px}
#lf .inp{font-size:18px;padding:12px}
#lf .go{margin-top:10px;width:100%}
.chk{display:flex;gap:10px;align-items:flex-start;font-weight:700!important;color:var(--muted)}
.chk input{margin-top:3px;width:18px;height:18px}
.err{margin:6px 0 0;color:var(--bad);font-weight:800;font-size:15px}

/* livelli */
.lvl{margin-top:10px;display:grid;gap:6px}
.lvl-pills{display:flex;gap:6px;flex-wrap:wrap}
.lvl-pills button{flex:1 1 0;min-width:52px;background:var(--card);border:2px solid var(--line);border-bottom-width:4px;border-radius:12px;padding:7px 4px;font-family:var(--f-display);font-weight:700;font-size:17px;color:var(--muted)}
.lvl-pills button[aria-pressed="true"]{border-color:var(--blue);background:var(--blue);color:#fff;border-bottom-color:var(--blue-d)}
.lvl p{margin:0;color:var(--muted);font-size:14px;font-weight:700}
.lvl p b{color:var(--ink)}
textarea.inp{resize:vertical;min-height:84px;line-height:1.35}
.tip{display:grid;gap:10px;justify-items:center;background:color-mix(in srgb,var(--sun) 22%,var(--card));border:2px solid var(--sun);border-radius:16px;padding:14px;width:100%;box-sizing:border-box}
.tip p{color:var(--ink);font-weight:700}
.lvsel{display:grid;grid-template-columns:1fr;gap:10px}
.lvsel>div{display:grid;gap:6px;min-width:0}
.lvsel select.inp{font-size:16px;padding:10px 8px}
.opt-l{font-weight:600;color:var(--muted)}

/* ---------- spiegazioni nel riquadro in basso ---------- */
.dock{max-height:72vh;overflow-y:auto}
.dock.info{background:color-mix(in srgb,var(--blue) 12%,var(--card));border-color:var(--blue)}
.dock.info .fb{color:var(--ink)} .dock.info .fb>b{color:var(--blue)}
.dock.info .go{background:var(--blue);border-bottom-color:var(--blue-d)}
.fb .ans{margin:2px 0 6px;font-weight:800;font-size:18px;color:var(--ink);overflow-wrap:anywhere}
.fb .ans u{text-decoration-thickness:3px;text-underline-offset:3px;text-decoration-color:var(--sun-d)}
.fb .pair{margin:4px 0;color:var(--ink);font-weight:700;font-size:15px}
.fb .alt{color:var(--muted);font-weight:700}
.fb .why{margin:8px 0 4px;padding:8px 10px;background:var(--card);border-radius:10px;color:var(--ink);font-weight:600;font-size:15px;line-height:1.45;border-left:4px solid var(--sun)}
.fb em,.gram em{font-style:normal;font-weight:800;color:var(--blue)}
.fb .fb-tip,.fb-tip{display:block;margin:6px 0 0;color:var(--muted);font-weight:700;font-size:13px}
.diff{display:grid;gap:2px;margin:4px 0;font-size:15px;color:var(--ink)}
.diff p{margin:0;font-weight:700;overflow-wrap:anywhere}
.diff span{display:inline-block;min-width:88px;color:var(--muted);font-size:12px;text-transform:uppercase;letter-spacing:.6px}
.diff del{color:var(--bad);text-decoration:line-through;text-decoration-thickness:2px;background:var(--bad-bg);border-radius:4px;padding:0 2px}
.diff ins{color:var(--ok);text-decoration:none;background:var(--ok-bg);border-radius:4px;padding:0 2px;font-weight:800}
.rule{margin-top:6px;display:inline-flex;align-items:center;gap:8px;background:var(--card);border:2px solid var(--line);border-radius:12px;padding:7px 12px;font-weight:800;font-size:14px;color:var(--blue);text-align:left}
.skip{background:none;border:2px solid var(--line);border-bottom-width:4px;border-radius:14px;padding:11px 16px;font-family:var(--f-display);font-weight:600;font-size:16px;color:var(--muted)}
.skip:hover{border-color:var(--blue);color:var(--blue)}
.cmb{display:inline-flex;align-items:center;gap:4px;margin-left:8px;font-family:var(--f-display);color:#ff8a1f;font-size:17px;vertical-align:middle}
.combo{display:flex;align-items:center;gap:2px;font-family:var(--f-display);font-weight:700;font-size:18px;color:#ff8a1f;font-variant-numeric:tabular-nums}
.gbtn{color:var(--blue)}

/* ---------- guida dell'unità ---------- */
.unit .u-txt{flex:1;min-width:0}
.ubtn{flex:none;display:flex;flex-direction:column;align-items:center;gap:2px;background:rgba(255,255,255,.16);border:2px solid rgba(255,255,255,.35);color:#fff;border-radius:12px;padding:6px 10px;font-weight:800;font-size:12px}
.ubtn:hover{background:rgba(255,255,255,.28)}
.intro-l{flex:1;font-family:var(--f-display);font-weight:600;color:var(--muted)}
.intro{margin-top:14px;display:grid;gap:12px}
.gd-n{font-family:var(--f-display);font-size:13px;letter-spacing:1px;text-transform:uppercase;color:var(--muted)}
#sheetC h2,.intro h2{font-size:28px;color:var(--blue)}
.gram{background:var(--card);border:2px solid var(--line);border-radius:16px;padding:14px 16px;display:grid;gap:10px}
.gram h3{font-size:19px}
.gram ul{margin:0;padding-left:20px;display:grid;gap:6px;line-height:1.5}
.exs{display:grid;gap:8px}
.exr{display:flex;align-items:center;gap:10px;background:var(--paper);border-radius:12px;padding:8px 10px}
.exr div{display:grid;min-width:0}
.exr b{font-size:17px;overflow-wrap:anywhere}
.exr span{color:var(--muted);font-weight:700;font-size:14px}
.spk.sm{width:38px;height:36px;border-radius:10px;border-bottom-width:3px}
.spk.sm svg{width:20px;height:20px}
.wl-t{font-size:17px;margin-top:4px}
.wl{list-style:none;margin:0;padding:0;display:grid;grid-template-columns:repeat(auto-fill,minmax(220px,1fr));gap:6px}
.wl li{display:flex;align-items:center;gap:10px;background:var(--card);border:2px solid var(--line);border-radius:12px;padding:6px 10px;min-width:0}
.wl b{font-size:16px;overflow-wrap:anywhere}
.wl span{margin-left:auto;color:var(--muted);font-weight:700;font-size:14px;text-align:right}
.sheet{position:fixed;inset:0;z-index:50;background:color-mix(in srgb,var(--ink) 45%,transparent);display:flex;align-items:flex-end;justify-content:center}
.sheet-in{position:relative;background:var(--paper);width:100%;max-width:600px;max-height:88vh;overflow-y:auto;border-radius:22px 22px 0 0;box-sizing:border-box;
 padding-left:max(16px,env(safe-area-inset-left,0px));padding-right:max(16px,env(safe-area-inset-right,0px));padding-block:18px calc(24px + env(safe-area-inset-bottom,0px));display:grid;gap:12px;animation:up .25s}
#sheetC{display:grid;gap:12px}
.sheet-x{position:absolute;top:10px;right:max(10px,env(safe-area-inset-right,0px))}
body.noscroll{overflow:hidden}
@keyframes up{from{transform:translateY(40px);opacity:.4}to{transform:none;opacity:1}}
@media (min-width:640px){.sheet{align-items:center}.sheet-in{border-radius:22px}}

/* ---------- nuovi esercizi ---------- */
.it-ref{margin:0;background:var(--card);border:2px solid var(--line);border-radius:14px;padding:10px 14px;font-weight:700;color:var(--ink)}
.it-ref span{display:block;font-size:12px;text-transform:uppercase;letter-spacing:.8px;color:var(--muted)}
.sent{margin:0;font-size:22px;font-weight:800;line-height:1.9;overflow-wrap:anywhere}
.gap{display:inline-block;min-width:90px;border-bottom:3px dashed var(--blue);text-align:center;color:var(--blue);padding:0 4px;line-height:1.3}
.gap.filled{border-bottom-style:solid}
.gapin{font:inherit;font-size:20px;color:var(--blue);background:var(--card);border:none;border-bottom:3px solid var(--blue);border-radius:6px 6px 0 0;padding:0 6px;max-width:100%;box-sizing:border-box}
.spot{display:flex;flex-wrap:wrap;gap:8px}
.spot .w[aria-pressed="true"]{border-color:var(--bad);background:var(--bad-bg);color:var(--bad)}
.letters .w{min-width:44px;font-family:var(--f-display);font-size:22px;text-transform:none;padding:8px 10px}
.line.letters{justify-content:center;gap:6px}
.bank.letters{gap:6px}

/* ---------- sfida lampo ---------- */
.acts{margin-top:10px;display:grid;grid-template-columns:1fr 1fr;gap:10px}
.act{display:flex;align-items:center;gap:10px;background:var(--card);border:2px solid var(--line);border-bottom-width:4px;border-radius:16px;padding:10px 12px;text-align:left;min-width:0}
.act b{display:block;font-family:var(--f-display);font-size:17px}
.act small{display:block;color:var(--muted);font-weight:700;font-size:13px}
.ai{flex:none;width:40px;height:40px;border-radius:12px;display:grid;place-items:center;background:color-mix(in srgb,var(--sun) 35%,var(--card));color:var(--sun-d)}
.act.flash .ai{background:color-mix(in srgb,var(--blue) 18%,var(--card));color:var(--blue)}
a.act{color:inherit;text-decoration:none}
.act.study{grid-column:1/-1}
.act.study .ai{background:color-mix(in srgb,var(--ok) 20%,var(--card));color:var(--ok)}
.timer{flex:1}.timer i{background:var(--sun);transition:width .1s linear}
.fscore{display:flex;align-items:baseline;gap:6px;font-family:var(--f-display);font-variant-numeric:tabular-nums}
.fscore b{font-size:26px;color:var(--blue)}
.fscore span{font-size:16px;color:#ff8a1f;font-weight:700}
.fbig{font-family:var(--f-display);font-weight:700;font-size:32px;text-align:center;padding:18px 8px;background:var(--card);border:2px solid var(--line);border-radius:18px;overflow-wrap:anywhere}
.opts.two{grid-template-columns:1fr 1fr}
.opt.right{border-color:var(--ok);background:var(--ok-bg);color:var(--ok)}
.opt.wrongf{border-color:var(--bad);background:var(--bad-bg);color:var(--bad);animation:shake .3s}
.flashq{margin-top:18px}

/* ---------- medaglie ---------- */
.bgrid{display:grid;grid-template-columns:repeat(auto-fill,minmax(140px,1fr));gap:10px;width:100%}
.bdg{display:grid;justify-items:center;text-align:center;gap:4px;background:var(--card);border:2px solid var(--line);border-radius:16px;padding:12px 8px;opacity:.55;filter:grayscale(1)}
.bdg.on{opacity:1;filter:none;border-color:var(--sun)}
.bdg .bi{width:48px;height:48px;border-radius:50%;display:grid;place-items:center;background:color-mix(in srgb,var(--sun) 35%,var(--card));color:var(--sun-d)}
.bdg .bi svg{width:26px;height:26px}
.bdg b{font-family:var(--f-display);font-size:15px}
.bdg small{color:var(--muted);font-weight:700;font-size:12px;line-height:1.3}
.newb{width:100%;display:grid;gap:8px}
.newb p{font-family:var(--f-display);font-weight:700;color:var(--sun-d);font-size:18px;margin:0}
.medal.lost{background:var(--bad);border-bottom-color:color-mix(in srgb,var(--bad) 70%,#000);color:#fff}
.row2{display:flex;gap:10px;flex-wrap:wrap;justify-content:center}
.row2 .go{min-width:0;flex:1 1 150px;display:inline-flex;align-items:center;justify-content:center;gap:8px}
#again{display:inline-flex;align-items:center;gap:8px}
@media (max-width:380px){.acts{grid-template-columns:1fr}}

.fb .pair b,.fb .why b,.fb .cmb{display:inline;font-size:inherit}
.fb .pair b{font-family:inherit;color:var(--ink)}
.fb .cmb{font-size:17px}

/* ---------- mascotte (disegni in mascotte.js) ---------- */
.hello{display:flex;align-items:flex-end;gap:4px;margin-top:14px}
.mbtn{flex:none;width:96px;background:none;border:none;padding:0}
.mbtn .masc{width:96px;height:96px}
.bubble{position:relative;flex:1;min-width:0;margin:0 0 30px 8px;background:var(--card);border:2px solid var(--line);border-radius:18px;padding:10px 14px;font-weight:700;font-size:15px;color:var(--muted)}
.bubble:before{content:"";position:absolute;left:-10px;bottom:16px;width:16px;height:16px;background:var(--card);border-left:2px solid var(--line);border-bottom:2px solid var(--line);transform:rotate(45deg)}
.bubble b{display:block;font-family:var(--f-display);font-weight:600;font-size:19px;color:var(--ink)}
.dm{flex:none;width:64px;height:64px;align-self:center}
.dm .masc{width:64px;height:64px}
.rmasc .masc{width:150px;height:150px}
.mchoose{max-width:460px;margin:4vh auto 0;display:grid;gap:12px;text-align:center}
.mchoose h1{font-size:30px;color:var(--blue)}
.mchoose .tagline{margin:-6px 0 4px}
.mgrid{display:grid;grid-template-columns:repeat(3,1fr);gap:10px}
.mopt{background:var(--card);border:2px solid var(--line);border-bottom-width:5px;border-radius:18px;padding:10px 6px 8px;display:grid;justify-items:center;gap:2px;min-width:0}
.mopt .masc{width:100%;max-width:96px;height:auto}
.mopt b{font-family:var(--f-display);font-weight:600;font-size:17px}
.mopt small{color:var(--muted);font-weight:700;font-size:12px;line-height:1.2}
.mopt[aria-pressed="true"]{border-color:var(--blue);background:color-mix(in srgb,var(--blue) 12%,var(--card))}
.mchoose label{font-weight:800;font-size:14px;text-align:left;margin-top:6px}
.mchoose .inp{margin-top:-6px}
.mchoose .go{width:100%}

/* ---------- home principale a riquadri (hub) e pagine Profilo / Impostazioni ---------- */
.tiles{display:grid;grid-template-columns:1fr 1fr;gap:12px;margin-top:6px}
.tile2{position:relative;display:grid;gap:6px;align-content:start;min-height:150px;padding:14px;border-radius:22px;border:none;border-bottom:6px solid rgba(0,0,0,.22);color:#fff;text-align:left;overflow:hidden;text-decoration:none;min-width:0}
.tile2 .ti{width:46px;height:46px;border-radius:14px;background:rgba(255,255,255,.22);display:grid;place-items:center}
.tile2 .ti svg{width:28px;height:28px}
.tile2 b{font-family:var(--f-display);font-weight:600;font-size:22px;line-height:1.1}
.tile2 small{font-weight:700;font-size:14px;opacity:.92;overflow-wrap:anywhere}
.tile2 .bg{position:absolute;right:-18px;bottom:-22px;opacity:.18;pointer-events:none}
.tile2 .bg svg{width:110px;height:110px}
.tile2:active{transform:translateY(2px)}
/* colori fissi: con il testo bianco devono restare scuri anche nel tema scuro */
.t-lang{background:#2457d6}
.t-study{background:#1d8f5b}
.t-med{background:#ffc531;color:#3a2a00}
.t-med .ti{background:rgba(255,255,255,.45)}
.t-board{background:#7446d9}
.mini{display:grid;grid-template-columns:1fr 1fr;gap:12px;margin-top:12px}
.mini button{display:flex;align-items:center;gap:10px;background:var(--card);border:2px solid var(--line);border-bottom-width:4px;border-radius:16px;padding:12px;font-family:var(--f-display);font-weight:600;font-size:17px;color:var(--ink)}
.mini svg{color:var(--muted)}
.chip.me{padding:3px 12px 3px 4px;color:var(--ink)}
.avm{width:28px;height:28px;display:block}.avm .masc{width:28px;height:28px}
.phead{display:flex;align-items:center;gap:6px;flex-wrap:wrap}
.phead h1{font-size:28px;color:var(--blue);flex:1}
.acts.one{grid-template-columns:1fr}
.pcard{margin-top:14px;display:flex;align-items:center;gap:14px;background:var(--card);border:2px solid var(--line);border-radius:20px;padding:12px 16px}
.pm{flex:none;width:110px}.pm .masc{width:110px;height:110px}
.pinfo{display:grid;gap:2px;min-width:0;flex:1}
.pinfo b{font-family:var(--f-display);font-weight:600;font-size:24px}
.pinfo small{color:var(--muted);font-weight:700}
.pinfo .go{margin-top:8px;min-width:0;padding:10px 14px;font-size:16px}
.sez{font-size:20px;margin:22px 0 10px}
.card .go{width:100%}
.tabs.t3{grid-template-columns:repeat(3,1fr);background:color-mix(in srgb,var(--line) 60%,var(--paper))}
.tabs.t3 button{font-family:var(--f-display);font-weight:600;font-size:16px;padding:10px 4px}

/* ---------- premi: mascotte e accessori sbloccati con le medaglie ---------- */
.mprev{display:grid;place-items:center}.mprev .masc{width:150px;height:150px}
.mopt{position:relative}
.mopt.locked,.aopt.locked{background:color-mix(in srgb,var(--lock) 35%,var(--card))}
.mopt.locked .masc,.aopt.locked .masc{filter:grayscale(1);opacity:.45}
.lock{position:absolute;top:8px;right:8px;width:30px;height:30px;border-radius:50%;background:var(--card);border:2px solid var(--line);display:grid;place-items:center;color:var(--muted)}
.lock svg{width:16px;height:16px}
small.lk{color:var(--sun-d)!important;font-weight:800}
.accp{margin:10px 0 4px;text-align:left;font-weight:800;font-size:14px;color:var(--muted)}
.agrid{display:grid;grid-template-columns:repeat(4,1fr);gap:8px}
.aopt{position:relative;background:var(--card);border:2px solid var(--line);border-bottom-width:4px;border-radius:14px;padding:6px 4px;display:grid;justify-items:center;gap:2px;min-width:0}
.aopt .masc{width:100%;max-width:64px;height:auto}
.aopt small{font-weight:700;font-size:11px;line-height:1.15;color:var(--muted);overflow-wrap:anywhere}
.aopt .lock{top:4px;right:4px;width:24px;height:24px}.aopt .lock svg{width:13px;height:13px}
.aopt[aria-pressed="true"]{border-color:var(--blue);background:color-mix(in srgb,var(--blue) 12%,var(--card))}
.bdg small.premio{color:var(--sun-d);font-weight:800;margin-top:2px}
.unlock{margin-top:14px;display:grid;gap:10px;width:100%}
.ucard{display:flex;align-items:center;gap:12px;background:color-mix(in srgb,var(--sun) 22%,var(--card));border:2px solid var(--sun);border-radius:18px;padding:8px 14px;text-align:left}
.ucard .masc{width:80px;height:80px;flex:none}
.ucard small{display:block;color:var(--muted);font-weight:800}
.ucard b{font-family:var(--f-display);font-weight:600;font-size:20px}

/* ---------- presentazione della mascotte ---------- */
.tour{max-width:460px;margin:2vh auto 0;display:grid;gap:12px;justify-items:center;text-align:center}
.tdots{display:flex;gap:6px}.tdots i{width:26px;height:6px;border-radius:99px;background:var(--lock)}.tdots i.fatto{background:var(--blue)}.tdots i.on{background:var(--sun)}
.tour .hero .masc{width:150px;height:150px}
.ttit{font-size:30px;color:var(--blue)}
.ttile{width:100%;min-height:0;grid-template-columns:auto 1fr;align-items:center;gap:12px;padding:12px 16px}
.ttile b{font-size:26px}
.t-prof{background:#5b6b8a}
.tour .say{width:100%;text-align:left;font-size:17px;color:var(--ink);margin-top:0}
.tour .say:before{display:none}
.tour .row{width:100%}.tour .row .go{min-width:0}
.tour .hero{display:grid;justify-items:center}
.tour .say{background:var(--card);border:2px solid var(--line);border-radius:20px;padding:14px 16px;font-weight:700;line-height:1.45}
.tour *,.tour{box-sizing:border-box}
.tour .row{display:flex;gap:10px}.tour .row .go{flex:1;min-width:0}