/* Layout: app de práctica con color por clase — portada con tarjetas de color, clase con banda de color, sesión en tarjeta central con barra de racha */
:root{
  --bg:#EEF2FF; --bg2:#FFFFFF; --surface:#FFFFFF; --ink:#1B1F3B; --muted:#5E6488; --line:#DDE2F5;
  --c1:#FF5A5F; --c2:#8B5CF6; --c3:#0FB9A0; --c4:#FFAA1A; --c5:#2D8CFF;
  --pink:#FF4FA3; --green:#22C063; --orange:#FF7A1A;
  --ok:#22C063; --ok-bg:#DFF8E9; --ok-ink:#0E7A3C; --bad:#FF4D4F; --bad-bg:#FFE4E4; --bad-ink:#B4232A;
  --shadow:0 10px 30px -12px rgba(40,50,120,.25);
  --f-display:"Fredoka","Baloo 2","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"]){
  --bg:#12142A; --bg2:#1A1D3A; --surface:#1E2242; --ink:#F1F2FF; --muted:#A6ABD0; --line:#2F3463;
  --ok-bg:#123A26; --ok-ink:#7EF0AE; --bad-bg:#3E1820; --bad-ink:#FF9C9C;
  --shadow:0 10px 30px -12px rgba(0,0,0,.6); color-scheme:dark }}
:root[data-theme="dark"]{
  --bg:#12142A; --bg2:#1A1D3A; --surface:#1E2242; --ink:#F1F2FF; --muted:#A6ABD0; --line:#2F3463;
  --ok-bg:#123A26; --ok-ink:#7EF0AE; --bad-bg:#3E1820; --bad-ink:#FF9C9C;
  --shadow:0 10px 30px -12px rgba(0,0,0,.6); color-scheme:dark }
*{box-sizing:border-box}
html,body{background:var(--bg);color:var(--ink)}
body{font-family:var(--f-body);font-size:17px;line-height:1.5;padding-inline:16px;padding-block:0 56px;
  background:
   radial-gradient(600px 400px at 0% 0%, color-mix(in srgb,var(--c2) 18%,transparent), transparent 70%),
   radial-gradient(500px 380px at 100% 10%, color-mix(in srgb,var(--c3) 16%,transparent), transparent 70%),
   radial-gradient(700px 500px at 50% 110%, color-mix(in srgb,var(--c4) 14%,transparent), transparent 70%),
   var(--bg);
  background-attachment:fixed; min-height:100%}
.wrap{max-width:1060px;margin:0 auto}
h1,h2,h3{font-family:var(--f-display);line-height:1.1;margin:0;text-wrap:balance;font-weight:600}
button{font:inherit;color:inherit;cursor:pointer}
button:focus-visible,input:focus-visible,[tabindex]:focus-visible{outline:3px solid var(--c5);outline-offset:3px}

/* chunky button */
.btn{--c:var(--c5);border:0;border-radius:16px;padding:13px 22px;font-family:var(--f-display);font-weight:600;font-size:18px;letter-spacing:.02em;
  background:var(--c);color:#fff;box-shadow:0 5px 0 color-mix(in srgb,var(--c) 65%,#000);transform:translateY(0);transition:transform .08s, box-shadow .08s}
.btn:active:not(:disabled){transform:translateY(4px);box-shadow:0 1px 0 color-mix(in srgb,var(--c) 65%,#000)}
.btn:disabled{filter:grayscale(.8);opacity:.5;cursor:not-allowed}
.btn.ghost{background:var(--surface);color:var(--ink);box-shadow:0 5px 0 var(--line);border:2px solid var(--line)}
.btn.wide{width:100%}

/* header */
header.top{display:flex;align-items:center;justify-content:space-between;gap:12px;padding-block:20px 10px;flex-wrap:wrap}
.logo{font-family:var(--f-display);font-weight:700;font-size:clamp(28px,4.5vw,38px);letter-spacing:-.01em;display:flex;align-items:center;gap:10px}
.logo .bubble{width:46px;height:46px;border-radius:14px 14px 14px 4px;background:var(--c1);display:grid;place-items:center;color:#fff;font-size:24px;box-shadow:0 4px 0 color-mix(in srgb,var(--c1) 65%,#000);transform:rotate(-6deg)}
.logo span:nth-child(2){color:var(--c2)} .logo span:nth-child(3){color:var(--c4)}
.levels{display:flex;gap:6px;flex-wrap:wrap;background:var(--surface);padding:5px;border-radius:999px;box-shadow:var(--shadow)}
.lvl{border:0;background:transparent;border-radius:999px;padding:7px 16px;font-weight:800;font-size:14px;color:var(--muted)}
.lvl[aria-current="true"]{background:var(--c2);color:#fff}
.lvl:disabled{cursor:not-allowed;opacity:.6}

/* hero */
.hero{position:relative;margin-block:14px 26px;border-radius:28px;padding:30px clamp(20px,4vw,40px);overflow:hidden;color:#fff;
  background:linear-gradient(120deg,var(--c2) 0%, var(--c5) 55%, var(--c3) 100%);box-shadow:var(--shadow);display:grid;grid-template-columns:minmax(0,1.3fr) minmax(0,1fr);gap:20px;align-items:center}
.hero h2{font-size:clamp(30px,5vw,50px);font-weight:700;letter-spacing:-.01em}
.hero h2 em{font-style:normal;background:var(--c4);color:var(--ink);padding:0 .25em;border-radius:12px;display:inline-block;transform:rotate(-2deg)}
.hero p{margin:12px 0 0;opacity:.92;max-width:48ch;font-weight:700}
.stats{display:flex;gap:10px;flex-wrap:wrap;margin-top:18px}
.stat{background:rgba(255,255,255,.18);border:1px solid rgba(255,255,255,.3);border-radius:14px;padding:8px 14px;backdrop-filter:blur(4px)}
.stat b{font-family:var(--f-display);font-size:24px;font-variant-numeric:tabular-nums;display:block;line-height:1.1}
.stat span{font-size:12px;text-transform:uppercase;letter-spacing:.08em;opacity:.9;font-weight:800}
.floaters{position:relative;height:200px}
.floaters span{position:absolute;font-size:54px;filter:drop-shadow(0 8px 10px rgba(0,0,0,.2));animation:bob 4s ease-in-out infinite}
@keyframes bob{50%{transform:translateY(-10px) rotate(6deg)}}

/* class cards */
.sect{display:flex;justify-content:space-between;align-items:baseline;margin-bottom:12px;gap:10px;flex-wrap:wrap}
.sect h3{font-size:24px}
.sect small{color:var(--muted);font-weight:700}
.grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(180px,1fr));gap:16px}
.cls{border:0;border-radius:24px;padding:18px;text-align:left;color:#fff;background:var(--c);position:relative;overflow:hidden;
  box-shadow:0 7px 0 color-mix(in srgb,var(--c) 62%,#000);display:flex;flex-direction:column;gap:8px;min-height:230px;transition:transform .12s}
.cls:hover{transform:translateY(-3px) rotate(-.6deg)}
.cls:active{transform:translateY(4px);box-shadow:0 2px 0 color-mix(in srgb,var(--c) 62%,#000)}
.cls .lab{font-size:13px;font-weight:800;letter-spacing:.1em;text-transform:uppercase;opacity:.9}
.cls .num{font-family:var(--f-display);font-size:64px;font-weight:700;line-height:.85}
.cls .topic{font-weight:800;font-size:16px;flex:1}
.cls .emo{position:absolute;right:12px;top:14px;font-size:28px;display:flex;gap:2px;opacity:.95}
.pbar{height:10px;border-radius:10px;background:rgba(255,255,255,.3);overflow:hidden}
.pbar i{display:block;height:100%;background:#fff;border-radius:10px}
.cls .meta{display:flex;justify-content:space-between;font-size:13px;font-weight:800}
.c1{--c:var(--c1)}.c2{--c:var(--c2)}.c3{--c:var(--c3)}.c4{--c:var(--c4)}.c5{--c:var(--c5)}
.cls.c4{color:#3B2500}.cls.c4 .pbar{background:rgba(0,0,0,.12)}.cls.c4 .pbar i{background:#3B2500}

/* class view */
.back{background:var(--surface);border:0;border-radius:999px;padding:8px 16px;font-weight:800;box-shadow:var(--shadow)}
.band{border-radius:28px;background:var(--c);color:#fff;padding:24px clamp(20px,4vw,34px);display:flex;gap:20px;align-items:center;flex-wrap:wrap;margin-block:16px 22px;position:relative;overflow:hidden;box-shadow:var(--shadow)}
.band.c4{color:#3B2500}
.band .n{font-family:var(--f-display);font-size:96px;font-weight:700;line-height:.8}
.band h2{font-size:clamp(26px,4vw,38px)}
.band p{margin:6px 0 0;font-weight:700;opacity:.92}
.band .big-emo{position:absolute;right:20px;bottom:-14px;font-size:110px;opacity:.9;transform:rotate(-8deg)}
.two{display:grid;grid-template-columns:minmax(0,1fr) minmax(0,1.2fr);gap:22px;align-items:start}
.theory{background:var(--surface);border-radius:24px;padding:22px;box-shadow:var(--shadow)}
.theory h3{font-size:20px;margin-bottom:12px}
.theory ul{margin:0;padding:0;list-style:none;display:grid;gap:12px}
.theory li{display:grid;gap:2px;padding-left:14px;border-left:4px solid var(--c)}
.theory .ex{font-family:var(--f-display);font-weight:600;font-size:19px}
.theory li span{color:var(--muted);font-size:15px}
.tip{margin-top:16px;padding:14px 16px;border-radius:16px;background:color-mix(in srgb,var(--c4) 22%,var(--surface));font-size:15px}
.tip b{display:block;font-family:var(--f-display);font-size:16px}
.words{display:flex;flex-wrap:wrap;gap:8px;margin-top:10px}
.words button{border:2px solid var(--line);background:var(--bg2);border-radius:999px;padding:4px 12px;font-size:15px;font-weight:700}
.words button:hover{border-color:var(--c)}
.words button i{font-style:normal;color:var(--muted);font-weight:500}
.modes{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:12px}
.mode{--m:var(--c5);border:0;background:var(--surface);border-radius:20px;padding:14px;text-align:left;display:grid;grid-template-columns:auto 1fr;gap:2px 12px;align-items:center;
  box-shadow:0 5px 0 var(--line);transition:transform .08s}
.mode:hover{transform:translateY(-2px)}
.mode:active{transform:translateY(4px);box-shadow:0 1px 0 var(--line)}
.mode .ic{grid-row:span 3;width:54px;height:54px;border-radius:16px;background:var(--m);display:grid;place-items:center;font-size:28px;box-shadow:inset 0 -4px 0 rgba(0,0,0,.15)}
.mode b{font-family:var(--f-display);font-size:19px;font-weight:600}
.mode span.d{font-size:13px;color:var(--muted);line-height:1.3}
.mode .st{font-size:16px;letter-spacing:2px;color:var(--line)}
.mode .st .on{color:var(--c4)}
.mode.main{grid-column:1/-1;background:var(--ink);color:var(--bg);box-shadow:0 5px 0 color-mix(in srgb,var(--ink) 60%,#000)}
.mode.main span.d{color:var(--bg);opacity:.75}
.mode.main .st{color:color-mix(in srgb,var(--bg) 30%,transparent)}

/* session */
.session{max-width:740px;margin:0 auto}
.sbar{display:flex;align-items:center;gap:12px;padding-block:18px 14px}
.x{border:0;background:var(--surface);width:42px;height:42px;border-radius:50%;font-size:18px;box-shadow:var(--shadow);flex:none}
.prog{flex:1;height:16px;border-radius:16px;background:var(--line);overflow:hidden}
.prog i{display:block;height:100%;border-radius:16px;background:linear-gradient(90deg,var(--c3),var(--green));transition:width .35s;position:relative}
.prog i::after{content:"";position:absolute;inset:3px 8px auto 8px;height:4px;border-radius:4px;background:rgba(255,255,255,.4)}
.pill{flex:none;font-family:var(--f-display);font-weight:600;font-size:18px;background:var(--surface);padding:6px 12px;border-radius:999px;box-shadow:var(--shadow);font-variant-numeric:tabular-nums}
.pill.fire{color:var(--orange)}
.card{background:var(--surface);border-radius:28px;padding:26px;display:grid;gap:18px;box-shadow:var(--shadow);position:relative;overflow:hidden}
.card::before{content:"";position:absolute;inset:0 0 auto 0;height:8px;background:var(--m,var(--c5))}
.kind{display:flex;justify-content:space-between;gap:8px;flex-wrap:wrap;align-items:center}
.tag{display:inline-flex;align-items:center;gap:6px;background:color-mix(in srgb,var(--m,var(--c5)) 16%,var(--surface));color:var(--m,var(--c5));font-weight:800;font-size:13px;letter-spacing:.06em;text-transform:uppercase;padding:5px 12px;border-radius:999px}
.kind small{color:var(--muted);font-weight:700}
.prompt{font-family:var(--f-display);font-size:clamp(24px,3.8vw,32px);font-weight:600;line-height:1.2}
.sub{color:var(--muted);font-size:15px;margin-top:-8px;font-weight:700}
.answer{width:100%;font:inherit;font-size:21px;font-weight:700;padding:16px 18px;border-radius:16px;border:3px solid var(--line);background:var(--bg2);color:var(--ink)}
.answer:focus{border-color:var(--c5);outline:none}
.opts{display:grid;gap:10px}
.opt{border:3px solid var(--line);background:var(--bg2);border-radius:16px;padding:13px 18px;text-align:left;font-size:19px;font-weight:700;box-shadow:0 4px 0 var(--line);transition:transform .08s}
.opt:hover:not(:disabled){border-color:var(--c5)}
.opt:active:not(:disabled){transform:translateY(3px);box-shadow:0 1px 0 var(--line)}
.opt.ok{border-color:var(--ok);background:var(--ok-bg);color:var(--ok-ink);box-shadow:0 4px 0 var(--ok)}
.opt.bad{border-color:var(--bad);background:var(--bad-bg);color:var(--bad-ink);box-shadow:0 4px 0 var(--bad)}
.opt:disabled{cursor:default}
.built{min-height:66px;border-bottom:3px solid var(--line);padding:8px 0;display:flex;flex-wrap:wrap;gap:8px;align-items:center}
.pool{display:flex;flex-wrap:wrap;gap:10px;justify-content:center}
.chip{border:2px solid var(--line);background:var(--surface);border-radius:14px;padding:9px 14px;font-size:19px;font-weight:700;box-shadow:0 4px 0 var(--line)}
.chip:hover{border-color:var(--c2)}
.chip.used{visibility:hidden}
.chip.in{border-color:var(--c2);color:var(--c2);box-shadow:0 4px 0 color-mix(in srgb,var(--c2) 40%,var(--line))}
.row{display:flex;gap:10px;flex-wrap:wrap;align-items:center}
.spk{border:0;background:var(--c5);color:#fff;border-radius:18px;width:72px;height:72px;font-size:30px;display:grid;place-items:center;box-shadow:0 5px 0 color-mix(in srgb,var(--c5) 60%,#000)}
.spk.sm{width:48px;height:48px;font-size:20px;border-radius:14px}
.spk.slow{background:var(--c3);box-shadow:0 5px 0 color-mix(in srgb,var(--c3) 60%,#000)}
.spk:active{transform:translateY(4px);box-shadow:none}
.spk.playing{animation:pulse .6s ease-in-out infinite alternate}
@keyframes pulse{to{transform:scale(1.07)}}
.fb{border-radius:20px;padding:16px 18px;display:grid;gap:6px;animation:pop .25s ease-out}
@keyframes pop{from{transform:translateY(10px);opacity:0}}
.fb.ok{background:var(--ok-bg);color:var(--ok-ink)}
.fb.bad{background:var(--bad-bg);color:var(--bad-ink)}
.fb.neutral{background:var(--bg2);color:var(--ink)}
.fb .head{font-family:var(--f-display);font-weight:700;font-size:22px;display:flex;align-items:center;gap:8px}
.fb .sol{color:var(--ink);font-family:var(--f-display);font-size:21px;font-weight:600}
.fb small{color:var(--ink);opacity:.85;font-size:15px}
.fb .row{margin-top:6px}
.fb.ok .btn{--c:var(--ok)} .fb.bad .btn{--c:var(--bad)}
.shake{animation:shake .4s}
@keyframes shake{20%,60%{transform:translateX(-8px)}40%,80%{transform:translateX(8px)}}
.scene{position:relative;height:240px;border-radius:22px;overflow:hidden;background:linear-gradient(#BFE3FF 0 58%, #9BE29B 58%)}
:root[data-theme="dark"] .scene{background:linear-gradient(#24305E 0 58%, #1F5A3A 58%)}
@media (prefers-color-scheme: dark){ :root:not([data-theme="light"]) .scene{background:linear-gradient(#24305E 0 58%, #1F5A3A 58%)} }
.scene .sun{position:absolute;right:24px;top:18px;font-size:34px}
.scene .near{position:absolute;left:10%;bottom:12px;font-size:100px;line-height:1}
.scene .far{position:absolute;right:20%;top:52%;font-size:38px;line-height:1;transform:translateY(-50%)}
.scene .hand{position:absolute;font-size:38px;line-height:1;animation:point .8s ease-in-out infinite alternate}
@keyframes point{to{transform:translateX(-8px)}}
.scene .dim{opacity:.35;filter:grayscale(.7)}
.solo{display:grid;place-items:center;height:200px;border-radius:22px;background:radial-gradient(circle at 50% 60%, color-mix(in srgb,var(--m) 25%,var(--surface)) 0 45%, transparent 46%)}
.solo span{font-size:110px;line-height:1;animation:in .35s cubic-bezier(.3,1.6,.6,1)}
.solo .flag{font-size:54px;margin-left:-20px;margin-top:60px}
@keyframes in{from{transform:scale(.4) rotate(-20deg)}}
.timer{height:12px;border-radius:12px;background:var(--line);overflow:hidden}
.timer i{display:block;height:100%;background:linear-gradient(90deg,var(--c4),var(--orange));width:100%;border-radius:12px}
.flash{min-height:230px;display:grid;place-items:center;text-align:center;border-radius:24px;cursor:pointer;padding:20px;color:#fff;
  background:linear-gradient(135deg,var(--green),var(--c3));box-shadow:0 7px 0 color-mix(in srgb,var(--c3) 60%,#000);transition:transform .25s}
.flash.back{background:linear-gradient(135deg,var(--c2),var(--c5));box-shadow:0 7px 0 color-mix(in srgb,var(--c2) 60%,#000)}
.flash .w{font-family:var(--f-display);font-size:48px;font-weight:700;line-height:1.1}
.flash .t{opacity:.9;font-weight:700}
.result{text-align:center;justify-items:center}
.trophy{font-size:84px;animation:in .5s cubic-bezier(.3,1.6,.6,1)}
.result .score{font-family:var(--f-display);font-size:64px;font-weight:700;line-height:1;font-variant-numeric:tabular-nums}
.result .stars{font-size:46px;letter-spacing:6px;color:var(--line)}
.result .stars .on{color:var(--c4);display:inline-block;animation:in .4s cubic-bezier(.3,1.6,.6,1) both}
.review{text-align:left;width:100%;display:grid;gap:8px}
.review div{border-radius:14px;padding:10px 14px;background:var(--bg2);border-left:5px solid var(--bad)}
.review small{color:var(--muted);display:block}
.review b{font-family:var(--f-display);font-weight:600;font-size:18px}
canvas#conf{position:fixed;inset:0;pointer-events:none;z-index:50;width:100%;height:100%}
footer{margin-top:36px;color:var(--muted);font-size:13px;max-width:70ch;font-weight:500}
.loading{color:var(--muted);font-size:13px;font-weight:700}
@media (max-width:760px){
  .hero,.two{grid-template-columns:1fr}
  .floaters{display:none}
  .modes{grid-template-columns:1fr}
  .card{padding:20px}
  .band .big-emo{font-size:80px}
  .scene .near{font-size:80px}
}
@media (prefers-reduced-motion:reduce){*{animation:none!important;transition:none!important}}
/* camino */
.path{display:grid;justify-items:center;gap:6px;padding-block:10px 30px}
.node-wrap{display:flex;align-items:center;gap:14px;transform:translateX(var(--x));width:min(360px,100%)}
.node{width:86px;height:86px;flex:none;border-radius:50%;border:0;background:var(--surface);font-size:38px;display:grid;place-items:center;position:relative;
  box-shadow:0 7px 0 var(--line), inset 0 0 0 4px var(--line);transition:transform .1s}
.node:hover{transform:translateY(-3px)}
.node:active{transform:translateY(5px);box-shadow:0 2px 0 var(--line), inset 0 0 0 4px var(--line)}
.node.done{background:var(--c);box-shadow:0 7px 0 color-mix(in srgb,var(--c) 60%,#000)}
.node.gold{box-shadow:0 7px 0 color-mix(in srgb,var(--c) 60%,#000), 0 0 0 5px var(--c4)}
.node.next{background:var(--c);box-shadow:0 7px 0 color-mix(in srgb,var(--c) 60%,#000);animation:pulse2 1.4s ease-in-out infinite}
@keyframes pulse2{50%{transform:scale(1.08)}}
.node .go{position:absolute;top:-30px;left:50%;transform:translateX(-50%);background:var(--ink);color:var(--bg);font-size:13px;font-weight:800;padding:3px 10px;border-radius:10px;white-space:nowrap}
.node .go::after{content:"";position:absolute;bottom:-5px;left:50%;margin-left:-5px;border:5px solid transparent;border-bottom:0;border-top-color:var(--ink)}
.nlab{display:grid;line-height:1.25;min-width:0}
.nlab b{font-family:var(--f-display);font-size:18px;font-weight:600}
.nlab span{color:var(--muted);font-size:14px;font-weight:700}
.nst{color:var(--c4)!important;letter-spacing:2px;font-size:18px!important}.nst i{font-style:normal;color:var(--line)}
.trophy-end{width:86px;height:86px;flex:none;border-radius:24px;display:grid;place-items:center;font-size:44px;background:var(--surface);box-shadow:0 7px 0 var(--line)}
.trophy-end.won{background:var(--c4);box-shadow:0 7px 0 color-mix(in srgb,var(--c4) 60%,#000)}
#theory{margin-bottom:18px;--c:var(--c5)}
.c1{--c:var(--c1)}.c2{--c:var(--c2)}.c3{--c:var(--c3)}.c4{--c:var(--c4)}.c5{--c:var(--c5)}
/* piezas de ejercicios */
.pe{position:relative;display:inline-block;line-height:1;font-size:56px}
.pe.big{font-size:110px}
.pflag{position:absolute;right:-14px;bottom:-6px;font-size:.45em}
.learn-card{display:grid;justify-items:center;gap:8px;text-align:center;padding-block:6px}
.lpic{width:190px;height:190px;border-radius:50%;display:grid;place-items:center;background:radial-gradient(circle, color-mix(in srgb,var(--m) 25%,var(--surface)) 0 60%, transparent 62%);animation:in .4s cubic-bezier(.3,1.6,.6,1)}
.lword{font-family:var(--f-display);font-size:48px;font-weight:700;line-height:1}
.les{color:var(--muted);font-weight:800;font-size:18px;margin-bottom:6px}
.tiles{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:12px}
.tile{border:3px solid var(--line);background:var(--bg2);border-radius:22px;min-height:130px;display:grid;place-items:center;gap:4px;padding:10px;box-shadow:0 5px 0 var(--line);transition:transform .08s}
.tile:hover:not(:disabled){border-color:var(--m)}
.tile:active:not(:disabled){transform:translateY(4px);box-shadow:0 1px 0 var(--line)}
.tile .tl{font-weight:800;font-size:15px}
.tile.ok{border-color:var(--ok);background:var(--ok-bg);box-shadow:0 5px 0 var(--ok)}
.tile.bad{border-color:var(--bad);background:var(--bad-bg);box-shadow:0 5px 0 var(--bad);opacity:.7}
.match{display:grid;grid-template-columns:1fr 1fr;gap:14px}
.mcol{display:grid;gap:10px}
.mcard{border:3px solid var(--line);background:var(--bg2);border-radius:16px;min-height:70px;font-family:var(--f-display);font-size:20px;font-weight:600;box-shadow:0 4px 0 var(--line);display:grid;place-items:center;transition:opacity .3s, transform .15s}
.mcard .pe{font-size:40px}
.mcard.sel{border-color:var(--m);background:color-mix(in srgb,var(--m) 15%,var(--surface));transform:scale(1.03)}
.mcard.gone{opacity:0;pointer-events:none;transform:scale(.8)}
.mcard.nope{border-color:var(--bad);background:var(--bad-bg);animation:shake .35s}
.stage{display:grid;grid-template-columns:auto 1fr auto;gap:10px;align-items:end}
.av{display:grid;justify-items:center;gap:2px;transition:transform .2s}
.av span{font-size:54px;line-height:1}
.av b{font-size:13px;color:var(--muted)}
.av.talk{transform:translateY(-8px) scale(1.08)}
.av.talk b{color:var(--m)}
.solo.sm{height:170px}
.scene.mini{height:170px}.scene.mini .near{font-size:70px}.scene.mini .far{font-size:32px}
.chat{display:grid;gap:10px;min-height:20px}
.bub{position:relative;max-width:85%;border-radius:20px;padding:10px 54px 10px 16px;display:grid;gap:2px;animation:pop .25s ease-out}
.bub.e{justify-self:start;background:color-mix(in srgb,var(--pink) 16%,var(--surface));border-bottom-left-radius:6px}
.bub.t{justify-self:end;background:color-mix(in srgb,var(--c5) 16%,var(--surface));border-bottom-right-radius:6px}
.bub .who{font-size:12px;font-weight:800;color:var(--muted)}
.bub .en{font-family:var(--f-display);font-size:22px;font-weight:600;line-height:1.2}
.bub .es{font-size:14px;color:var(--muted);font-weight:700}
.spk.xs{position:absolute;right:8px;top:50%;transform:translateY(-50%);width:38px;height:38px;font-size:16px;border-radius:12px;box-shadow:0 3px 0 color-mix(in srgb,var(--c5) 60%,#000)}
.mini-tg{border:2px solid var(--line);background:var(--bg2);border-radius:999px;padding:4px 12px;font-size:13px;font-weight:800}
.scene.tap button{background:none;border:0;padding:0;cursor:pointer;border-radius:20px;transition:transform .1s}
.scene.tap button:hover{transform:scale(1.08)}
.scene.tap .near{font-size:100px}
.scene.tap .far{font-size:46px}
.scene.tap .hit{outline:5px solid var(--ok);outline-offset:6px;background:color-mix(in srgb,var(--ok) 25%,transparent)}
.opts.two{grid-template-columns:1fr 1fr}
.gapline{font-family:var(--f-display);font-size:clamp(26px,4.5vw,36px);font-weight:600;line-height:1.5;text-align:center}
.slot{display:inline-block;min-width:3.2em;margin:0 .2em;padding:0 .3em;border-bottom:4px dashed var(--m);color:var(--muted);text-align:center;border-radius:6px}
.slot.ok{border-bottom:4px solid var(--ok);color:var(--ok-ink);background:var(--ok-bg)}
.slot.bad{border-bottom:4px solid var(--bad);color:var(--bad-ink);background:var(--bad-bg)}
.pool.big .chip{font-size:26px;padding:12px 26px;font-family:var(--f-display);font-weight:600}
.speed-top{display:flex;justify-content:center;gap:16px}
.sc{display:grid;justify-items:center;background:var(--bg2);border-radius:16px;padding:6px 18px}
.sc b{font-family:var(--f-display);font-size:34px;line-height:1.1}
.sc span{font-size:12px;font-weight:800;color:var(--muted);text-transform:uppercase;letter-spacing:.06em}
.sc.fire b{color:var(--orange)}
.yn{display:grid;grid-template-columns:1fr 1fr;gap:12px}
.yn .btn{padding:18px 10px;font-size:20px}
.flash-ok{animation:fok .35s}
@keyframes fok{30%{box-shadow:0 0 0 6px var(--ok)}}
@media (max-width:520px){ .node-wrap{transform:translateX(calc(var(--x) * .45))} .tile{min-height:110px} .pe.big{font-size:90px} .av span{font-size:40px} .opts.two{grid-template-columns:1fr} }
.solo{background:radial-gradient(circle at 50% 50%, color-mix(in srgb,var(--m) 25%,var(--surface)) 0 78px, transparent 80px)!important}
.solo:not(.sm){background:radial-gradient(circle at 50% 50%, color-mix(in srgb,var(--m) 25%,var(--surface)) 0 92px, transparent 94px)!important}
.gapline + .sub{text-align:center}
/* cuenta y pagos */
.auth{max-width:460px;margin:30px auto;text-align:center;justify-items:center}
.auth h2{font-size:30px}
.form{display:grid;gap:8px;width:100%;text-align:left}
.form label{font-weight:800;font-size:14px}
.form input[type=email],.form input[type=password]{font:inherit;font-size:18px;padding:13px 16px;border-radius:14px;border:3px solid var(--line);background:var(--bg2);color:var(--ink)}
.form input:focus{border-color:var(--c5);outline:none}
.form .chk{display:flex;gap:8px;align-items:flex-start;font-weight:700;font-size:14px;color:var(--muted)}
.form .chk a{color:var(--c5)}
.msg{min-height:20px;color:var(--bad-ink);font-weight:700;font-size:14px}
.alt{font-size:14px;color:var(--muted);font-weight:700}
.lnk{background:none;border:0;color:var(--c5);font-weight:800;text-decoration:underline;padding:4px}
.banner{display:flex;gap:12px;align-items:center;justify-content:space-between;flex-wrap:wrap;background:color-mix(in srgb,var(--c4) 22%,var(--surface));border-radius:18px;padding:12px 16px;font-weight:700;margin-bottom:14px}
.banner.warn{background:var(--bad-bg);color:var(--bad-ink)}
.btn.sm{padding:8px 14px;font-size:15px;box-shadow:0 3px 0 color-mix(in srgb,var(--c) 65%,#000)}
.chip-acc{border:0;background:var(--surface);border-radius:999px;padding:8px 14px;font-weight:800;box-shadow:var(--shadow);font-size:14px}
.chip-acc.pro{background:var(--c4);color:#3B2500}
.chip-acc.warn{background:var(--bad-bg);color:var(--bad-ink)}
.levels.big{margin-bottom:18px;width:max-content;max-width:100%}
.levels.big .lvl{font-size:16px;padding:9px 18px}
.modal-bg{position:fixed;inset:0;background:rgba(10,12,30,.55);display:grid;place-items:center;z-index:40;padding:16px}
.modal{max-width:440px;width:100%;text-align:center;justify-items:center}
.price{display:grid;justify-items:center}
.price b{font-family:var(--f-display);font-size:44px;line-height:1}
.price span{color:var(--muted);font-weight:700}
.toast{position:fixed;left:50%;bottom:24px;transform:translateX(-50%);background:var(--ink);color:var(--bg);padding:12px 18px;border-radius:14px;font-weight:700;z-index:60;max-width:90vw;box-shadow:var(--shadow)}
.ctx{background:var(--bg2);border-radius:14px;padding:10px 14px;font-weight:700;color:var(--muted)}
.es-face{font-family:var(--f-display);font-size:20px;font-weight:600;line-height:1.2;text-align:center}
.stage-mid{display:grid;place-items:center;font-size:60px;height:110px}
.pair{display:grid;gap:6px;text-align:center;padding:16px;border-radius:20px;background:var(--bg2)}
.pen{font-family:var(--f-display);font-size:clamp(22px,4vw,30px);font-weight:600}
.peq{color:var(--muted);font-weight:800}
.pes{font-size:20px;font-weight:800;color:var(--muted)}
.loading-big{display:grid;justify-items:center;gap:12px;padding-top:120px;color:var(--muted);font-weight:700}
.spinner{width:48px;height:48px;border-radius:50%;border:6px solid var(--line);border-top-color:var(--c5);animation:spin 1s linear infinite}
@keyframes spin{to{transform:rotate(360deg)}}
.cls .emo{font-size:30px}
a.logo{text-decoration:none;color:inherit}
.promo{width:100%;display:grid;gap:6px;text-align:left;background:color-mix(in srgb,var(--c4) 22%,var(--surface));border:3px dashed var(--c4);border-radius:16px;padding:12px 14px}
.promo label{font-weight:900;font-size:16px}
.promo input{font:inherit;font-size:18px;font-weight:800;letter-spacing:.06em;padding:11px 14px;border-radius:12px;border:3px solid var(--line);background:var(--surface);color:var(--ink);text-transform:uppercase}
.promo input:focus{border-color:var(--c4);outline:none}
.promo input::placeholder{text-transform:none;letter-spacing:0;font-weight:600}
/* unidades desplegables */
.units{display:grid;gap:14px}
.unit{background:var(--surface);border-radius:24px;box-shadow:var(--shadow);overflow:hidden}
.unit summary{list-style:none;cursor:pointer;display:grid;grid-template-columns:auto minmax(0,1fr) auto auto;gap:14px;align-items:center;padding:14px 18px}
.unit summary::-webkit-details-marker{display:none}
.u-num{width:52px;height:52px;border-radius:16px;background:var(--c);color:#fff;display:grid;place-items:center;font-family:var(--f-display);font-weight:700;font-size:26px;box-shadow:0 4px 0 color-mix(in srgb,var(--c) 62%,#000)}
.u-txt{display:grid;min-width:0}
.u-txt b{font-family:var(--f-display);font-size:21px;font-weight:600}
.u-txt small{color:var(--muted);font-weight:700;font-size:14px;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.u-meta{display:grid;justify-items:end;gap:4px;font-size:13px;font-weight:800;color:var(--muted)}
.u-bar{width:90px;height:8px;border-radius:8px;background:var(--line);overflow:hidden}
.u-bar i{display:block;height:100%;background:var(--green)}
.u-chev{font-size:20px;color:var(--muted);transition:transform .2s}
.unit[open] .u-chev{transform:rotate(180deg)}
.unit .grid{padding:4px 18px 20px}
@media (max-width:520px){ .u-meta{display:none} .unit summary{grid-template-columns:auto minmax(0,1fr) auto} }