:root{
  --ink:#0b1f26; --paper:#f2ece0; --acqua:#2b7f93; --acqua-d:#123f4c;
  --rame:#c0703a; --oro:#e0a548; --rosso:#a8352c; --verde:#5d7f4e;
  --glass:rgba(9,28,34,.72); --line:rgba(242,236,224,.18);
  --ff:"Segoe UI",system-ui,-apple-system,sans-serif;
}
*{box-sizing:border-box;-webkit-tap-highlight-color:transparent}
html,body{margin:0;height:100%;overflow:hidden;background:#07161b;color:var(--paper);
  font-family:var(--ff);-webkit-user-select:none;user-select:none;overscroll-behavior:none;touch-action:none}
canvas#scene{position:fixed;inset:0;width:100%;height:100%;display:block}
.hidden{display:none!important}
button{font-family:var(--ff);cursor:pointer;border:0;outline:0}
input{font-family:var(--ff)}

/* ---------- schermate ---------- */
.screen{position:fixed;inset:0;z-index:60;display:flex;align-items:center;justify-content:center;
  background:radial-gradient(ellipse at 50% 34%,rgba(11,31,38,.42),rgba(5,15,19,.90) 78%);
  backdrop-filter:blur(3px);padding:env(safe-area-inset-top) 16px env(safe-area-inset-bottom);overflow-y:auto}
.m-wrap{width:min(560px,100%);text-align:center;padding:22px 0}
.m-wrap.wide{width:min(900px,100%)}
h1{font-size:clamp(32px,8.5vw,60px);margin:0;letter-spacing:.16em;font-weight:200;line-height:1}
h1 em{display:block;font-style:normal;font-weight:700;color:var(--oro);letter-spacing:.30em}
h2{font-size:clamp(19px,5vw,29px);margin:0 0 6px;font-weight:300;letter-spacing:.1em;color:var(--oro)}
.tag{opacity:.72;font-size:13.5px;line-height:1.55;margin:10px 0 20px}
.foot{opacity:.45;font-size:11px;margin-top:22px;line-height:1.7}
.m-btns{display:flex;flex-direction:column;gap:10px}
.m-btns button,.row-btns button,#lb-create,#lb-join{
  padding:14px 18px;border-radius:13px;font-size:14.5px;letter-spacing:.13em;font-weight:600;
  background:rgba(242,236,224,.07);color:var(--paper);border:1px solid var(--line);
  display:flex;flex-direction:column;gap:4px;align-items:center;transition:.16s}
.m-btns button small,.row-btns button small{font-size:10.5px;letter-spacing:.03em;opacity:.55;font-weight:400;text-transform:none}
.m-btns button:active{transform:scale(.985)}
button.primary{background:linear-gradient(180deg,var(--rame),#9c5528)!important;border-color:#e08a4a!important;
  box-shadow:0 6px 22px -8px rgba(192,112,58,.8)}
button.primary[disabled]{opacity:.35;box-shadow:none}
button.ghost{background:transparent!important;opacity:.6}
button.ghost2{background:transparent!important;border-style:dashed!important;opacity:.75}
button.locked{opacity:.4}
.row-btns{display:flex;gap:10px;justify-content:center;margin-top:20px;flex-wrap:wrap}
.row-btns button{flex-direction:row;padding:12px 24px}

/* ---------- scelta barca ---------- */
#boat-cards{display:grid;grid-template-columns:repeat(auto-fit,minmax(172px,1fr));gap:11px;margin-top:14px}
.bcard{background:rgba(242,236,224,.05);border:1px solid var(--line);border-radius:14px;padding:13px 12px;
  text-align:left;transition:.16s;cursor:pointer;position:relative;overflow:hidden}
.bcard.sel{border-color:var(--oro);background:rgba(224,165,72,.12);box-shadow:0 0 0 1px var(--oro) inset}
.bcard .n{font-size:10.5px;letter-spacing:.2em;opacity:.5}
.bcard .t{font-size:18px;font-weight:600;color:var(--oro);margin:2px 0 5px}
.bcard .d{font-size:11.5px;line-height:1.5;opacity:.72;min-height:48px}
.bcard svg{width:100%;height:40px;margin-top:4px;opacity:.9}
.bcard .stats{display:flex;gap:9px;font-size:10px;letter-spacing:.06em;opacity:.6;margin-top:7px}

/* ---------- lobby ---------- */
.lb-split{display:flex;align-items:center;gap:14px;margin:18px 0 6px}
.lb-col{flex:1;display:flex;flex-direction:column;gap:9px}
.lb-or{opacity:.4;font-size:11px;letter-spacing:.2em}
#lb-create,#lb-join{padding:13px;border-radius:12px;font-size:13.5px;letter-spacing:.12em;justify-content:center}
#lb-input,#lb-srv{background:rgba(0,0,0,.34);border:1px solid var(--line);color:var(--paper);
  padding:12px;border-radius:12px;font-size:20px;text-align:center;letter-spacing:.4em;
  text-transform:uppercase;font-family:ui-monospace,monospace;width:100%}
#lb-srv{font-size:11.5px;letter-spacing:.02em;text-transform:none;padding:9px;text-align:left}
.srv{display:block;font-size:10px;opacity:.45;letter-spacing:.1em;margin-top:12px;text-align:left}
.code{font-size:40px;letter-spacing:.32em;font-family:ui-monospace,monospace;color:var(--oro);
  background:rgba(0,0,0,.3);border-radius:12px;padding:10px;border:1px dashed var(--oro)}
.hint{font-size:10.5px;opacity:.45;margin:2px 0}
.chk{display:flex;align-items:center;gap:9px;font-size:12.5px;opacity:.8;margin-top:14px;justify-content:center}
.chk input{width:18px;height:18px;accent-color:var(--rame)}
#lb-status{margin-top:14px;font-size:11.5px;letter-spacing:.1em;opacity:.6;min-height:18px}
#lb-peers{display:flex;gap:8px;justify-content:center;margin-top:8px;flex-wrap:wrap}
.peer{font-size:10.5px;padding:6px 12px;border-radius:20px;background:rgba(93,127,78,.25);
  border:1px solid rgba(120,170,100,.4);letter-spacing:.08em}

/* ---------- sartoria / skin ---------- */
#sartoria .m-wrap{width:min(760px,100%)}
.sr-grid{display:grid;grid-template-columns:1fr;gap:16px;margin-top:12px}
@media(min-width:700px){.sr-grid{grid-template-columns:230px 1fr}}
#sr-preview{background:rgba(0,0,0,.28);border:1px solid var(--line);border-radius:16px;
  display:flex;align-items:center;justify-content:center;padding:10px;min-height:250px}
#sr-preview svg{width:100%;max-width:190px;height:auto}
.sr-ctl{text-align:left}
.sr-row{margin-bottom:13px}
.sr-row .rl{font-size:9.5px;letter-spacing:.2em;opacity:.5;margin-bottom:6px}
.swatches{display:flex;gap:7px;flex-wrap:wrap}
.sw{width:32px;height:32px;border-radius:9px;border:2px solid transparent;cursor:pointer;transition:.12s}
.sw.sel{border-color:var(--paper);transform:scale(1.1)}
.opts{display:flex;gap:7px;flex-wrap:wrap}
.opt{padding:8px 13px;border-radius:10px;background:rgba(242,236,224,.06);border:1px solid var(--line);
  font-size:11.5px;letter-spacing:.06em;cursor:pointer;transition:.12s}
.opt.sel{background:rgba(224,165,72,.2);border-color:var(--oro);color:var(--oro)}
#sr-name{background:rgba(0,0,0,.34);border:1px solid var(--line);color:var(--paper);padding:10px 13px;
  border-radius:10px;font-size:14px;width:100%;letter-spacing:.05em}

/* ---------- HUD ---------- */
#hud{position:fixed;inset:0;pointer-events:none;z-index:20;
  padding:calc(env(safe-area-inset-top) + 10px) 12px calc(env(safe-area-inset-bottom) + 10px)}
#hud-top{display:flex;justify-content:space-between;gap:10px}
.panel{background:var(--glass);border:1px solid var(--line);border-radius:11px;padding:8px 12px;backdrop-filter:blur(7px)}
.lbl{font-size:9px;letter-spacing:.22em;opacity:.5}
.val{font-size:13.5px;font-weight:600;margin-top:2px}
.val.big{font-size:26px;font-weight:200;line-height:1}
.val.big em{font-size:10.5px;font-style:normal;opacity:.5;margin-left:4px;letter-spacing:.1em}
.sub{font-size:9.5px;opacity:.45;margin-top:3px;letter-spacing:.06em}
#p-progress{min-width:186px}
.bar{height:3px;background:rgba(255,255,255,.13);border-radius:2px;margin-top:6px;overflow:hidden}
.bar i{display:block;height:100%;width:0;background:var(--oro);border-radius:2px;transition:width .3s}
#p-speed{text-align:right}

#hud-left{position:absolute;left:12px;bottom:calc(env(safe-area-inset-bottom) + 18px);display:flex;gap:10px}
.gauge{text-align:center}
.gauge .lbl{writing-mode:vertical-rl;transform:rotate(180deg);height:70px;font-size:8px;margin:0 auto 4px}
.vbar{width:9px;height:92px;background:rgba(0,0,0,.5);border-radius:5px;position:relative;overflow:hidden;
  border:1px solid var(--line)}
.vbar i{position:absolute;bottom:0;left:0;right:0;height:100%;
  background:linear-gradient(0deg,#5d7f4e,#9ec27a);transition:height .12s}
.vbar.low i{background:linear-gradient(0deg,#a8352c,#e0a548)}
.vbar.bal i{bottom:auto;top:50%;height:4px;transform:translateY(-50%);background:var(--oro);transition:top .08s}
.vbar.bal u{position:absolute;left:0;right:0;top:50%;height:1px;background:rgba(255,255,255,.25)}

#compass{position:absolute;left:50%;transform:translateX(-50%);top:calc(env(safe-area-inset-top) + 74px);
  width:130px;height:25px;background:var(--glass);border:1px solid var(--line);border-radius:13px;
  display:flex;align-items:center;justify-content:center;overflow:hidden}
#needle{position:absolute;width:2px;height:15px;background:var(--oro);border-radius:1px;transition:transform .1s}
#compass span{font-size:8.5px;letter-spacing:.18em;opacity:.4}

#cue{position:absolute;left:50%;top:42%;transform:translate(-50%,-50%);font-size:clamp(21px,6.5vw,38px);
  font-weight:700;letter-spacing:.2em;text-shadow:0 3px 18px #000;opacity:0;transition:opacity .18s;color:var(--oro);
  white-space:nowrap}
#callout{position:absolute;left:50%;bottom:calc(env(safe-area-inset-bottom) + 128px);transform:translateX(-50%);
  background:var(--glass);border:1px solid var(--line);border-left:3px solid var(--rame);
  padding:9px 15px;border-radius:9px;font-size:12.5px;max-width:76vw;text-align:center;opacity:0;
  transition:opacity .25s;line-height:1.45;backdrop-filter:blur(7px)}

#crewbar{position:absolute;right:12px;top:calc(env(safe-area-inset-top) + 94px);width:156px;
  background:var(--glass);border:1px solid var(--line);border-radius:11px;padding:8px 10px;backdrop-filter:blur(7px)}
.cb-lbl{font-size:8.5px;letter-spacing:.18em;opacity:.5}
.cb-bar{height:5px;background:rgba(0,0,0,.5);border-radius:3px;margin:5px 0 7px;overflow:hidden}
.cb-bar i{display:block;height:100%;width:0;background:linear-gradient(90deg,#a8352c,#e0a548,#7fbf5f);transition:width .15s}
#cb-list{display:flex;flex-direction:column;gap:3px}
.cw{display:flex;align-items:center;gap:6px;font-size:9.5px;opacity:.78}
.cw i{width:6px;height:6px;border-radius:50%;background:#4a5c62;transition:.1s;flex:none}
.cw i.on{background:var(--oro);box-shadow:0 0 7px var(--oro)}
.cw b{font-weight:500;letter-spacing:.05em}
.cw u{margin-left:auto;text-decoration:none;opacity:.5}
.cw s{text-decoration:none;width:22px;height:3px;background:rgba(0,0,0,.5);border-radius:2px;overflow:hidden;flex:none}
.cw s>b{display:block;height:100%;background:#7fbf5f;width:100%}

#voice-tag{position:absolute;right:12px;top:calc(env(safe-area-inset-top) + 60px);
  background:rgba(93,127,78,.85);padding:4px 10px;border-radius:14px;font-size:10px;
  display:flex;align-items:center;gap:6px;letter-spacing:.08em}
#voice-tag .dot{width:6px;height:6px;background:#dfffcf;border-radius:50%;animation:pulse 1s infinite}
@keyframes pulse{50%{opacity:.25}}

#fare{position:absolute;left:50%;transform:translateX(-50%);top:calc(env(safe-area-inset-top) + 74px);
  background:var(--glass);border:1px solid var(--line);border-radius:11px;padding:7px 14px;text-align:center;
  backdrop-filter:blur(7px)}
#fare .lbl{font-size:8.5px}
#fare .eu{font-size:20px;color:var(--oro);font-weight:600}
#fare .st{font-size:12px;letter-spacing:.2em;color:var(--oro)}

/* ---------- controllo remo ---------- */
#forcola{position:fixed;right:calc(env(safe-area-inset-right) + 8px);bottom:calc(env(safe-area-inset-bottom) + 8px);
  width:188px;height:252px;z-index:30;touch-action:none}
#forcola-svg{width:100%;height:100%;overflow:visible}
#track{fill:rgba(9,28,34,.5);stroke:rgba(242,236,224,.2);stroke-width:2;stroke-dasharray:5 7}
#track-premer{fill:none;stroke:var(--rame);stroke-width:4;opacity:.55;stroke-linecap:round}
#grip{fill:var(--oro);stroke:#fff6e2;stroke-width:2.5;filter:drop-shadow(0 3px 10px rgba(0,0,0,.6))}
#forcola text{fill:rgba(242,236,224,.42);font-size:12px;letter-spacing:.12em;font-family:var(--ff);font-weight:600}
#forcola-hint{position:absolute;bottom:-2px;left:0;right:0;text-align:center;font-size:9.5px;opacity:.4;letter-spacing:.06em}
#btn-scia{position:fixed;left:calc(env(safe-area-inset-left) + 14px);bottom:calc(env(safe-area-inset-bottom) + 22px);
  width:74px;height:74px;border-radius:50%;background:var(--glass);border:1px solid var(--line);z-index:30;
  display:flex;flex-direction:column;align-items:center;justify-content:center;font-size:11.5px;letter-spacing:.14em;
  font-weight:600;backdrop-filter:blur(7px)}
#btn-scia small{font-size:8px;opacity:.45;letter-spacing:.05em;font-weight:400}
#btn-scia.on{background:var(--rosso);border-color:#e06a5c}
#btn-cam,#btn-mic{position:fixed;right:calc(env(safe-area-inset-right) + 12px);width:42px;height:42px;border-radius:50%;
  background:var(--glass);border:1px solid var(--line);z-index:30;display:flex;align-items:center;
  justify-content:center;font-size:17px;backdrop-filter:blur(7px)}
#btn-cam{top:calc(env(safe-area-inset-top) + 150px)}
#btn-mic{top:calc(env(safe-area-inset-top) + 200px);font-size:15px}
#btn-mic.off{opacity:.35}
#btn-mic.on{background:rgba(93,127,78,.8);border-color:#9ec27a}

/* ---------- lezione ---------- */
#lesson{position:fixed;inset:0;z-index:50;display:flex;align-items:flex-end;justify-content:center;
  background:linear-gradient(0deg,rgba(4,14,18,.94) 40%,rgba(4,14,18,0));padding:16px;
  padding-bottom:calc(env(safe-area-inset-bottom) + 16px)}
.l-card{width:min(620px,100%);background:rgba(9,28,34,.94);border:1px solid var(--line);
  border-radius:18px;padding:18px 20px 16px;backdrop-filter:blur(11px);
  box-shadow:0 -10px 50px -12px rgba(0,0,0,.9);max-height:88vh;overflow-y:auto}
.l-head{border-bottom:1px solid var(--line);padding-bottom:10px;margin-bottom:12px}
.l-head span{font-size:9.5px;letter-spacing:.28em;color:var(--rame)}
.l-head h2{margin:3px 0 0;font-size:21px;color:var(--paper);letter-spacing:.02em;font-weight:600}
#l-body{font-size:14px;line-height:1.66;opacity:.9}
#l-body p{margin:0 0 11px}
#l-body b{color:var(--oro);font-weight:600}
#l-body .ven{color:var(--rame);font-style:italic}
#l-body ul{margin:0 0 11px;padding-left:19px}
#l-body li{margin-bottom:6px}
.keys{display:flex;gap:8px;flex-wrap:wrap;margin:12px 0 4px}
.keys div{background:rgba(0,0,0,.42);border:1px solid var(--line);border-radius:9px;
  padding:8px 11px;font-size:11px;line-height:1.4;flex:1;min-width:120px}
.keys b{display:block;font-size:12px;margin-bottom:2px}
#l-fig{margin:6px 0 2px;text-align:center}
#l-fig svg{max-width:100%;height:auto;max-height:200px}
.l-foot{display:flex;gap:10px;justify-content:flex-end;margin-top:14px}
.l-foot button{padding:11px 22px;border-radius:11px;font-size:12px;letter-spacing:.14em;font-weight:600;
  background:rgba(242,236,224,.07);border:1px solid var(--line);color:var(--paper)}

/* ---------- obiettivo ---------- */
#task{position:fixed;left:50%;transform:translateX(-50%);top:calc(env(safe-area-inset-top) + 106px);
  width:min(340px,86vw);background:var(--glass);border:1px solid var(--line);border-left:3px solid var(--oro);
  border-radius:11px;padding:9px 13px;z-index:25;backdrop-filter:blur(7px);pointer-events:none}
.t-lbl{font-size:8.5px;letter-spacing:.24em;color:var(--oro);opacity:.85}
.t-txt{font-size:12.5px;line-height:1.45;margin-top:3px}
.t-bar{height:3px;background:rgba(255,255,255,.13);border-radius:2px;margin-top:8px;overflow:hidden}
.t-bar i{display:block;height:100%;width:0;background:var(--verde);transition:width .2s}
.t-tip{font-size:10px;opacity:.55;margin-top:6px;line-height:1.4;font-style:italic}

/* ---------- glossario ---------- */
.g-wrap{width:min(700px,100%);max-height:88vh;overflow-y:auto;padding:20px 4px}
#g-list{text-align:left;margin:16px 0}
.gi{border-bottom:1px solid var(--line);padding:13px 4px;display:flex;gap:14px;align-items:flex-start}
.gi svg{flex:none;width:64px;height:50px;opacity:.9}
.gi .gt{font-size:15.5px;color:var(--oro);font-weight:600}
.gi .gp{font-size:10px;opacity:.42;letter-spacing:.09em;margin:1px 0 4px}
.gi .gd{font-size:12.5px;line-height:1.55;opacity:.85}
#g-close{margin-top:8px;padding:13px 34px;border-radius:12px;letter-spacing:.14em;font-weight:600}

/* ---------- esito / esame ---------- */
#result .m-wrap{width:min(600px,100%)}
.rs-score{font-size:64px;font-weight:200;color:var(--oro);line-height:1}
.rs-score small{font-size:18px;opacity:.5}
.rs-list{text-align:left;margin:18px 0}
.rs-row{display:flex;justify-content:space-between;padding:9px 4px;border-bottom:1px solid var(--line);font-size:13px}
.rs-row b{font-weight:500;opacity:.8}
.rs-row u{text-decoration:none;font-family:ui-monospace,monospace}
.rs-row.ok u{color:#8fc76e}.rs-row.ko u{color:#e0705f}
.rs-verdict{font-size:20px;letter-spacing:.16em;margin:10px 0;font-weight:600}
.rs-verdict.ok{color:#8fc76e}.rs-verdict.ko{color:#e0705f}

/* ---------- varo ---------- */
#varo{position:fixed;inset:0;z-index:45;pointer-events:none;display:flex;align-items:flex-end;
  justify-content:center;padding-bottom:calc(env(safe-area-inset-bottom) + 40px)}
#varo-cap{background:rgba(4,14,18,.72);border-left:3px solid var(--oro);padding:10px 18px;border-radius:8px;
  font-size:14px;letter-spacing:.05em;opacity:0;transition:opacity .5s;max-width:80vw;text-align:center;
  backdrop-filter:blur(6px)}
#varo-skip{position:fixed;right:14px;bottom:calc(env(safe-area-inset-bottom) + 14px);z-index:46;
  background:var(--glass);border:1px solid var(--line);color:var(--paper);padding:9px 16px;border-radius:20px;
  font-size:11px;letter-spacing:.14em}
.cine #hud,.cine #forcola,.cine #btn-scia{opacity:0;transition:opacity .4s}
#bars-t,#bars-b{position:fixed;left:0;right:0;height:9vh;background:#000;z-index:44;transition:height .6s}
#bars-t{top:0}#bars-b{bottom:0}

/* ---------- loading ---------- */
#loading{position:fixed;inset:0;z-index:99;background:#07161b;display:flex;flex-direction:column;
  align-items:center;justify-content:center;gap:16px;font-size:11.5px;letter-spacing:.22em;opacity:.75}
.spin{width:32px;height:32px;border:2px solid rgba(242,236,224,.15);border-top-color:var(--oro);
  border-radius:50%;animation:sp .9s linear infinite}
@keyframes sp{to{transform:rotate(360deg)}}

@media (max-width:420px){
  #forcola{width:150px;height:206px}
  #p-progress{min-width:0}
  .val{font-size:12px}
  #crewbar{width:130px}
}
@media (orientation:landscape) and (max-height:460px){
  #hud-left{bottom:calc(env(safe-area-inset-bottom) + 10px)}
  #forcola{width:138px;height:188px}
}

/* Telefono in orizzontale: la lezione sta su due colonne, testo a sinistra e
   disegno a destra, e i pulsanti restano sempre raggiungibili col pollice. */
@media (orientation:landscape) and (max-height:620px){
  #lesson{align-items:center}
  .l-card{width:min(920px,100%);max-height:94vh;display:grid;
    grid-template-columns:1.25fr .95fr;grid-template-rows:auto 1fr auto;
    column-gap:22px;padding:14px 18px 12px}
  .l-head{grid-column:1/-1;padding-bottom:7px;margin-bottom:8px}
  .l-head h2{font-size:19px}
  #l-body{grid-column:1;overflow-y:auto;font-size:13px;line-height:1.55}
  #l-fig{grid-column:2;grid-row:2;display:flex;align-items:center;justify-content:center;margin:0}
  #l-fig svg{max-height:100%}
  .l-foot{grid-column:1/-1;margin-top:8px}
  .keys div{min-width:0;font-size:10.5px;padding:6px 9px}
}