:root{--bg:#f6f4fb;--surface:#fff;--ink:#3a3850;--muted:#6e6b85;--line:#ece8f5;--accent:#6f9169;--accent-soft:#dcebdd;--ok:#3e9b73;--ok-soft:#e2f3ea;--ko:#c25c86;--ko-soft:#fbe6ee;--radius:20px;--tap:56px;--shadow:0 8px 24px -12px #3a385040;--font-base:var(--font-nunito-sans), system-ui, sans-serif;--font-display:var(--font-fraunces), Georgia, serif;--msu-reg0:#dcebdd;--msu-reg1:#e8dcf0;--msu-reg2:#f5e6c8;--msu-reg3:#d9e5f2;--msu-wrong:#e5484d}*,:before,:after{box-sizing:border-box}body{background:var(--bg);color:var(--ink);font-family:var(--font-base);-webkit-font-smoothing:antialiased;touch-action:manipulation;margin:0;line-height:1.5}.msu-wrap{max-width:520px;padding:clamp(14px,4vw,20px);padding-bottom:calc(clamp(24px, 6vw, 40px) + env(safe-area-inset-bottom,0px));padding-left:calc(clamp(14px, 4vw, 20px) + env(safe-area-inset-left,0px));padding-right:calc(clamp(14px, 4vw, 20px) + env(safe-area-inset-right,0px));flex-direction:column;min-height:100dvh;margin:0 auto;display:flex}.msu-btn-nav{width:100%;min-height:var(--tap);background:var(--surface);border:1.5px solid var(--line);color:var(--muted);letter-spacing:.01em;-webkit-tap-highlight-color:transparent;border-radius:14px;justify-content:center;align-items:center;gap:8px;margin-bottom:20px;padding:14px 20px;font-size:clamp(.84rem,2.4vw,.92rem);font-weight:700;text-decoration:none;transition:border-color .2s,color .2s,background .2s;display:flex}.msu-btn-nav:hover,.msu-btn-nav:focus-visible{border-color:var(--accent);color:var(--accent);background:var(--accent-soft)}.msu-btn-nav.msu-bottom{margin:28px 0 4px}.msu-head{text-align:center;margin-bottom:clamp(18px,4vw,24px)}.msu-head .msu-chip{background:var(--accent-soft);width:54px;height:54px;color:var(--accent);border-radius:16px;justify-content:center;align-items:center;margin-bottom:12px;font-size:1.6rem;display:inline-flex}.msu-title-minimal{font-family:var(--font-display);color:var(--ink);letter-spacing:-.01em;margin:0;font-size:clamp(1.35rem,5.5vw,1.6rem);font-weight:700}.msu-sub{color:var(--muted);margin-top:4px;font-size:clamp(.85rem,2.6vw,.95rem)}.msu-card{background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);box-shadow:var(--shadow);margin-bottom:clamp(18px,4vw,24px);padding:clamp(18px,5vw,24px) clamp(14px,4vw,20px)}.msu-pista{text-align:center;color:var(--muted);margin-bottom:18px;font-size:clamp(.84rem,2.5vw,.9rem)}.msu-grid{background:var(--ink);border-radius:14px;grid-template-columns:repeat(4,1fr);gap:0;max-width:320px;margin:0 auto 18px;padding:2px;display:grid;overflow:hidden}.msu-cell{aspect-ratio:1;font-family:var(--font-display);color:var(--ink);cursor:pointer;-webkit-tap-highlight-color:transparent;border:1px solid #3d3a3414;justify-content:center;align-items:center;font-size:clamp(1.2rem,6vw,1.6rem);font-weight:700;display:flex;position:relative}.msu-cell.msu-box-right{border-right:2.5px solid var(--ink)}.msu-cell.msu-box-bottom{border-bottom:2.5px solid var(--ink)}.msu-cell.msu-given{color:var(--muted);cursor:default;font-weight:700}.msu-cell.msu-active{outline:2.5px solid var(--accent);outline-offset:-2.5px;z-index:2}.msu-cell.msu-correct{box-shadow:inset 0 0 0 3px var(--accent)}.msu-cell.msu-correct:after{content:"✓";font-size:.65rem;font-family:var(--font-base);color:var(--accent);position:absolute;top:2px;right:4px}.msu-cell.msu-wrong{color:#fff;background:var(--msu-wrong)!important}.msu-cell.msu-wrong:after{content:"✕";font-size:.65rem;font-family:var(--font-base);color:#fff;position:absolute;top:2px;right:4px}.msu-cell:disabled{cursor:default}.msu-keypad{grid-template-columns:repeat(4,1fr);gap:8px;margin-bottom:16px;display:grid}.msu-key{border:1.5px solid var(--line);background:var(--surface);font-family:var(--font-base);color:var(--ink);cursor:pointer;-webkit-tap-highlight-color:transparent;border-radius:12px;padding:clamp(14px,4vw,18px) 0;font-size:clamp(1rem,3.5vw,1.15rem);font-weight:800;transition:transform 80ms,background .15s,border-color .15s}.msu-key:active{background:var(--accent-soft);transform:scale(.94)}.msu-key:disabled{opacity:.35;cursor:not-allowed}.msu-actions{gap:10px;margin-bottom:8px;display:flex}.msu-btn-erase,.msu-btn-submit{min-height:var(--tap);font-family:var(--font-base);cursor:pointer;-webkit-tap-highlight-color:transparent;border:none;border-radius:14px;flex:1;padding:14px 0;font-size:clamp(.9rem,2.7vw,1rem);font-weight:700;transition:transform .1s,background .2s,opacity .15s}.msu-btn-erase{background:var(--surface);border:2px solid var(--line);color:var(--muted)}.msu-btn-submit{background:var(--accent);color:#fff}.msu-btn-erase:active,.msu-btn-submit:active{transform:scale(.98)}.msu-btn-erase:disabled,.msu-btn-submit:disabled{opacity:.4;cursor:not-allowed}.msu-intentos{text-align:center;color:var(--muted);min-height:20px;margin-bottom:4px;font-size:clamp(.8rem,2.4vw,.85rem)}.msu-msg{text-align:center;min-height:22px;color:var(--ko);font-size:clamp(.82rem,2.5vw,.9rem);font-weight:600}.msu-end{text-align:center;outline:none}.msu-end .msu-icono{margin-bottom:12px;font-size:clamp(2.8rem,9vw,3.5rem)}.msu-end .msu-big{font-family:var(--font-display);margin-bottom:8px;font-size:clamp(1.5rem,6vw,1.8rem);font-weight:700}.msu-end .msu-end-sub{color:var(--muted);margin-bottom:24px;font-size:clamp(.88rem,2.6vw,.95rem)}.msu-end.msu-win .msu-big{color:var(--ok)}.msu-end.msu-lose .msu-big{color:var(--ko)}.msu-share-box{background:var(--bg);border-radius:16px;margin-bottom:24px;padding:clamp(14px,4vw,16px)}.msu-share-box-title{margin-bottom:12px;font-size:.9rem;font-weight:700}.msu-share-grid{grid-template-columns:repeat(3,1fr);gap:8px;display:grid}.msu-share-btn{color:#fff;cursor:pointer;-webkit-tap-highlight-color:transparent;border:none;border-radius:10px;place-items:center;min-height:46px;padding:12px 4px;font-size:clamp(.74rem,2.2vw,.85rem);font-weight:700;text-decoration:none;transition:opacity .15s,transform .1s;display:grid}.msu-share-btn:hover{opacity:.9}.msu-share-btn:active{transform:scale(.97)}.msu-btn-copy{background:var(--ink)}.msu-btn-wa{background:#25d366}.msu-btn-tg{background:#08c}@media (max-width:340px){.msu-share-grid{grid-template-columns:1fr}}.msu-ver-btn{border:2px solid var(--line);width:100%;min-height:48px;color:var(--accent);font-family:var(--font-base);cursor:pointer;-webkit-tap-highlight-color:transparent;background:0 0;border-radius:14px;margin-bottom:16px;font-size:clamp(.86rem,2.6vw,.95rem);font-weight:700;transition:border-color .2s,background .2s}.msu-ver-btn:hover{border-color:var(--accent);background:var(--accent-soft)}.msu-timer{background:var(--bg);border:1px solid var(--line);border-radius:18px;margin-top:10px;padding:14px 22px}.msu-timer .msu-label{color:var(--muted);text-transform:uppercase;letter-spacing:.05em;font-size:.78rem;font-weight:700;display:block}.msu-timer .msu-time{font-family:var(--font-display);color:var(--ink);font-variant-numeric:tabular-nums;font-size:clamp(1.2rem,4.5vw,1.4rem);font-weight:700}.msu-instructions{background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);padding:clamp(16px,4.5vw,20px)}.msu-instructions h2{margin:0 0 12px;font-size:clamp(1rem,3.2vw,1.1rem)}.msu-instructions ul{margin:0;padding:0;list-style:none}.msu-instructions li{color:var(--muted);align-items:flex-start;gap:8px;margin-bottom:8px;font-size:clamp(.88rem,2.6vw,.95rem);display:flex}.msu-instructions .msu-emoji{font-size:1.1rem}.msu-instructions strong{color:var(--ink)}@keyframes msu-shake{0%,to{transform:translate(0)}20%,60%{transform:translate(-4px)}40%,80%{transform:translate(4px)}}.msu-shake{animation:.4s msu-shake}@keyframes msu-pop{0%{opacity:0;transform:scale(.85)}to{opacity:1;transform:scale(1)}}:focus-visible{outline:3px solid var(--accent);outline-offset:2px}@media (prefers-reduced-motion:reduce){*,:before,:after{transition-duration:.01ms!important;animation-duration:.01ms!important}}