/* trivia_jugar.php — móvil */
:root{ --neon:#ff2fd0; --cyan:#00e6ff; --bg:#0a0c1c; --ok:#25e39a; --err:#ff5470; }
*{margin:0;padding:0;box-sizing:border-box}
html,body{background:
  radial-gradient(900px 500px at 80% -10%,rgba(138,92,255,.30),transparent 60%),
  radial-gradient(700px 450px at -10% 110%,rgba(0,230,255,.22),transparent 55%),var(--bg);
  color:#eef1ff;font-family:'Rajdhani','Segoe UI',system-ui,sans-serif;min-height:100vh}
.wrap{max-width:560px;margin:0 auto;padding:1.2rem 1rem 3rem;min-height:100vh}
.muted{color:#9aa4d8}
.head{text-align:center;margin-bottom:1rem}
.head .logo{max-height:64px;max-width:60%;object-fit:contain;filter:drop-shadow(0 0 12px rgba(0,230,255,.5));margin-bottom:.4rem}
.head h1{font-family:'Orbitron',sans-serif;font-weight:900;font-size:1.4rem;text-transform:uppercase;
  background:linear-gradient(135deg,var(--neon),var(--cyan));-webkit-background-clip:text;background-clip:text;-webkit-text-fill-color:transparent}
.step{display:flex;flex-direction:column;gap:.9rem;align-items:stretch}
.lead{text-align:center;font-size:1.1rem}
input[type=text]{width:100%;padding:.9rem 1rem;border-radius:14px;border:1px solid rgba(255,255,255,.14);background:#11142e;color:#fff;font-size:1.1rem;text-align:center}
input[type=text]:focus{outline:none;border-color:var(--neon);box-shadow:0 0 0 3px rgba(255,47,208,.2)}
.btn{border:none;border-radius:14px;padding:.9rem 1.1rem;font-size:1.05rem;font-weight:800;cursor:pointer;text-align:center}
.btn.big{padding:1.1rem;font-size:1.2rem}
.btn-neon{background:linear-gradient(135deg,var(--neon),#8a5cff);color:#fff;box-shadow:0 8px 22px rgba(138,92,255,.4)}
.btn:disabled{opacity:.5}
.btn:active{transform:scale(.98)}
.timer{font-family:'Orbitron',sans-serif;font-weight:900;font-size:2.8rem;text-align:center;color:var(--cyan);text-shadow:0 0 16px var(--cyan)}
.timer.low{color:var(--err);text-shadow:0 0 16px var(--err);animation:pulse .6s infinite}
@keyframes pulse{50%{opacity:.5}}
.pregunta{font-size:1.5rem;font-weight:700;text-align:center;margin:.4rem 0 1rem}
.opts{list-style:none;display:flex;flex-direction:column;gap:.7rem}
.opt{display:flex;align-items:center;gap:.8rem;background:rgba(23,27,54,.85);border:2px solid rgba(255,255,255,.1);border-radius:14px;padding:1rem;font-size:1.15rem;cursor:pointer;transition:.15s}
.opt .letra{width:34px;height:34px;flex:0 0 34px;border-radius:50%;display:grid;place-items:center;font-weight:800;background:linear-gradient(135deg,var(--cyan),#2a7bff);color:#04121a}
.opt.sel{border-color:var(--neon);background:rgba(255,47,208,.14)}
.opt.correcta{border-color:var(--ok);background:rgba(37,227,154,.14)}
.opt.incorrecta{border-color:var(--err);background:rgba(255,84,112,.14)}
.opt.locked{pointer-events:none;opacity:.9}
.result-icon{width:96px;height:96px;border-radius:50%;margin:1.5rem auto .5rem;display:grid;place-items:center;font-size:3.4rem;color:#04121a;background:linear-gradient(135deg,var(--ok),#0fa)}
.result-icon.err{background:linear-gradient(135deg,var(--err),#b52947);color:#fff}
#stepDone{text-align:center}
#stepDone h2{font-family:'Orbitron',sans-serif;font-size:1.6rem}
.ganador{margin-top:1.2rem;background:rgba(255,47,208,.12);border:1px solid rgba(255,47,208,.4);border-radius:16px;padding:1.2rem;font-size:1.2rem}
.ganador b{font-family:'Orbitron',sans-serif;font-size:1.5rem;display:block;margin-top:.3rem}
.loader{width:64px;height:64px;margin:1.5rem auto;border:6px solid rgba(255,255,255,.15);border-top-color:var(--neon);border-radius:50%;animation:spin 1s linear infinite}
@keyframes spin{to{transform:rotate(360deg)}}
.msg{text-align:center;font-size:1.2rem;padding:2rem 1rem;background:rgba(23,27,54,.7);border:1px solid rgba(255,255,255,.1);border-radius:16px}
.toast{position:fixed;left:50%;bottom:1.4rem;transform:translateX(-50%);z-index:80;background:#ff5470;color:#fff;font-weight:700;padding:.8rem 1.2rem;border-radius:12px;opacity:0;transition:opacity .3s;pointer-events:none;max-width:90%}
.toast.show{opacity:1}