/* Prueba de nivel (página pública) */
.lt{--lt-green:#1f8a4c;max-width:900px;margin:0 auto}
.lt p{text-align:left;hyphens:none;-webkit-hyphens:none}
.lt-card{background:#fff;border:1px solid var(--line);border-radius:20px;box-shadow:0 20px 50px rgba(27,42,94,.08);padding:clamp(24px,4vw,44px)}
.lt-kicker{font-size:13px;font-weight:700;letter-spacing:.16em;text-transform:uppercase;color:var(--red);margin-bottom:10px}
.lt .field .error{display:block}

/* ---------- Portada ---------- */
.lt-intro-head{text-align:center;margin-bottom:34px}
.lt-intro-head .lt-kicker,.lt-intro-head p{text-align:center}
.lt-intro-head h2{font-size:clamp(28px,3.6vw,42px);margin-bottom:10px}
.lt-subtitle{font-family:var(--serif);font-style:italic;font-size:20px;color:var(--navy);margin-bottom:14px}
.lt-lead{max-width:640px;margin:0 auto 22px;color:var(--text)}
.lt-chips{display:flex;flex-wrap:wrap;justify-content:center;gap:10px}
.lt-chips li{background:#fff;border:1px solid var(--line);border-radius:999px;padding:7px 16px;font-size:14px;font-weight:600;color:var(--navy)}
.lt-intro-grid{display:grid;grid-template-columns:1fr 1.15fr;gap:24px;align-items:start}
.lt-rules{background:var(--navy);color:#fff;border-radius:20px;padding:clamp(24px,4vw,36px);background-image:radial-gradient(circle at 100% 0,rgba(212,42,60,.35),transparent 55%)}
.lt-rules h3{color:#fff;font-size:22px;margin-bottom:12px}
.lt-rules p{color:rgba(255,255,255,.9);margin-bottom:16px}
.lt-warning{background:rgba(255,255,255,.1);border-left:3px solid #fff;border-radius:8px;padding:14px 16px;font-weight:600;margin:0}
.lt-form{background:#fff;border:1px solid var(--line);border-radius:20px;padding:clamp(24px,4vw,36px);box-shadow:0 20px 50px rgba(27,42,94,.08)}
.lt-form h3{font-size:22px;margin-bottom:18px}
.lt-consent label{display:flex;gap:12px;align-items:flex-start;font-weight:400;font-size:14px;line-height:1.55;color:var(--text);cursor:pointer}
.lt .lt-consent input{width:20px;height:20px;padding:0;margin-top:2px;flex-shrink:0;accent-color:var(--red)}
.lt-consent a{color:var(--red);font-weight:600;text-decoration:underline;margin-left:4px}
.lt-form-error{color:var(--red);font-weight:600;min-height:0;margin:0 0 10px}
.lt-form-error:empty{display:none}
.lt-start{width:100%}
.lt button[disabled]{opacity:.55;cursor:not-allowed}

/* ---------- Progreso ---------- */
.lt-q-top{display:flex;justify-content:space-between;align-items:flex-end;gap:12px;margin-bottom:10px}
.lt-q-info{display:flex;justify-content:space-between;align-items:baseline;gap:10px 16px;flex-wrap:wrap;width:100%}
.lt-q-stage{font-weight:700;color:var(--navy);font-size:15px}
.lt-q-count{font-size:14px;color:#6b7390}
.lt-progress{margin-bottom:22px}
.lt-bar{height:8px;border-radius:999px;background:var(--blue-tint);overflow:hidden}
.lt-bar span{display:block;height:100%;width:0;border-radius:inherit;background:linear-gradient(90deg,var(--red),#e8606b);transition:width .6s ease}

/* ---------- Pantalla de etapa ---------- */
.lt-stage-card{text-align:center}
.lt-stage-card p{text-align:center}
.lt-stage-step{font-size:13px;font-weight:700;letter-spacing:.16em;text-transform:uppercase;color:var(--red);margin-bottom:12px}
.lt-stage-card h2{font-size:clamp(26px,3.4vw,38px);margin-bottom:10px;outline:none}
.lt-stage-sub{font-family:var(--serif);font-style:italic;font-size:19px;color:var(--navy);margin-bottom:22px}
.lt-stage-dots{display:flex;justify-content:center;gap:8px;margin-bottom:16px}
.lt-stage-dots span{width:34px;height:6px;border-radius:999px;background:var(--blue-tint)}
.lt-stage-dots .done{background:var(--navy)}
.lt-stage-dots .now{background:var(--red)}
.lt-stage-meta{color:#6b7390;font-size:15px;margin-bottom:26px}

/* ---------- Pregunta ---------- */
.lt-question{position:relative}
.lt-timer{position:absolute;top:18px;right:18px;width:58px;height:58px;display:grid;place-items:center}
.lt-timer svg{position:absolute;inset:0;transform:rotate(-90deg)}
.lt-timer circle{fill:none;stroke:var(--blue-tint);stroke-width:4}
.lt-timer .lt-timer-run{stroke:var(--navy);stroke-linecap:round;transition:stroke-dashoffset .25s linear,stroke .3s}
.lt-timer-num{font-weight:700;color:var(--navy);font-size:17px}
.lt-timer.low .lt-timer-run{stroke:var(--red)}
.lt-timer.low .lt-timer-num{color:var(--red)}
.lt-question:has(.lt-timer) .lt-q-text,.lt-question:has(.lt-timer) .lt-passage{margin-right:64px}
.lt-passage{background:#fbfaf6;border:1px solid #ece6d6;border-left:4px solid var(--navy);border-radius:12px;padding:20px 22px;margin-bottom:22px;font-size:16px;line-height:1.7;max-height:420px;overflow:auto}
.lt-passage p{margin:0}
.lt-passage p + p{margin-top:12px}
.lt-passage p:first-child{font-weight:700;color:var(--navy)}
.lt-images{display:grid;gap:12px;margin-bottom:22px}
.lt-images.many{grid-template-columns:repeat(auto-fit,minmax(200px,1fr))}
.lt-images img{width:100%;height:auto;max-height:420px;object-fit:contain;border-radius:12px;background:var(--light)}
/* Recursos: audio, video, PDF */
.lt-player{background:var(--navy);border-radius:16px;padding:14px;margin-bottom:22px;color:#fff;background-image:radial-gradient(circle at 100% 0,rgba(212,42,60,.35),transparent 60%)}
.lt-player video{display:block;width:100%;max-height:420px;border-radius:10px;background:#000;margin-bottom:12px;cursor:pointer}
.lt-player-controls{display:flex;align-items:center;gap:14px;flex-wrap:wrap}
.lt-play{width:52px;height:52px;border-radius:50%;border:0;background:#fff;color:var(--red);font-size:18px;font-weight:700;cursor:pointer;flex-shrink:0;box-shadow:0 0 0 6px rgba(255,255,255,.15);transition:transform .2s}
.lt-play:hover:not([disabled]){transform:scale(1.06)}
.lt-player .lt-bar{flex:1 1 160px;background:rgba(255,255,255,.18)}
.lt-player .lt-bar span{background:#fff;transition:none}
.lt-plays{font-size:13px;font-weight:600;opacity:.9;white-space:nowrap}
.lt-player.done{opacity:.75}
.lt-native{display:block;width:100%;margin-bottom:22px;border-radius:12px}
video.lt-native{max-height:420px;background:#000}
.lt-pdf{margin-bottom:22px}
.lt-pdf iframe{display:block;width:100%;height:min(70vh,560px);border:1px solid var(--line);border-radius:12px;background:var(--light)}
.lt-pdf-link{display:inline-block;margin:10px 0 22px;font-weight:700;color:var(--red);text-decoration:underline;text-underline-offset:3px}
.lt-pdf .lt-pdf-link{margin-bottom:0}
.lt-embed{position:relative;aspect-ratio:16/9;margin-bottom:22px;border-radius:12px;overflow:hidden;background:#000}
.lt-embed iframe{position:absolute;inset:0;width:100%;height:100%;border:0}
.lt-written-input{width:100%;padding:16px 18px;border:2px solid var(--line);border-radius:14px;font:inherit;font-size:18px;color:var(--navy);background:#fff;transition:border-color .2s}
.lt-written-input:focus{outline:none;border-color:var(--navy)}
.lt-q-text{font-family:var(--serif);font-size:clamp(19px,2.2vw,23px);font-weight:700;color:var(--navy);line-height:1.45;margin-bottom:22px;outline:none}
.lt-q-text p{margin:0}
.lt-q-text p + p{margin-top:8px}
.lt-blank{display:inline-block;width:64px;border-bottom:3px solid var(--red);margin:0 4px;vertical-align:baseline}
.lt-q-hint{font-size:14px;color:#6b7390;margin:-10px 0 16px}
.lt-options{display:grid;gap:10px}
.lt-opt{position:relative;display:flex;align-items:center;gap:14px;padding:14px 16px;border:2px solid var(--line);border-radius:14px;background:#fff;cursor:pointer;transition:border-color .2s,background .2s,transform .2s}
.lt-opt:hover{border-color:#b9c1dc;background:#fafbfe}
.lt-opt input{position:absolute;opacity:0;pointer-events:none}
.lt-letter{width:36px;height:36px;border-radius:50%;background:var(--blue-tint);color:var(--navy);display:grid;place-items:center;font-weight:700;flex-shrink:0;transition:background .2s,color .2s}
.lt-opt-text{font-size:16px;color:var(--text);line-height:1.45}
.lt-opt.checked{border-color:var(--navy);background:#f4f6fc}
.lt-opt.checked .lt-letter{background:var(--navy);color:#fff}
.lt-opt:has(input:focus-visible){outline:3px solid var(--red);outline-offset:2px}
.lt-opt:has(input[type="checkbox"]) .lt-letter{border-radius:8px}
.lt-question.timeout .lt-opt{opacity:.6;cursor:not-allowed}
.lt-q-foot{display:flex;justify-content:space-between;align-items:center;gap:16px;flex-wrap:wrap;margin-top:26px}
.lt-q-msg{margin:0;font-weight:600;color:var(--red);font-size:15px}
.lt-q-msg.bad{margin-bottom:16px}
.lt-next{margin-left:auto;min-width:180px}

/* ---------- Cargando ---------- */
.lt-loading{text-align:center;padding:60px 20px}
.lt-loading p{text-align:center;font-weight:600;color:var(--navy);margin:16px 0 0}
.lt-spinner{display:inline-block;width:46px;height:46px;border-radius:50%;border:4px solid var(--blue-tint);border-top-color:var(--red);animation:lt-spin .8s linear infinite}
@keyframes lt-spin{to{transform:rotate(360deg)}}

/* ---------- Resultado ---------- */
.lt-result{outline:none}
.lt-res-hero{display:grid;grid-template-columns:auto 1fr;gap:clamp(24px,4vw,48px);align-items:center;background:var(--navy);color:#fff;border-radius:24px;padding:clamp(28px,5vw,52px);background-image:radial-gradient(circle at 100% 0,rgba(212,42,60,.4),transparent 55%),radial-gradient(rgba(255,255,255,.06) 1.5px,transparent 2px);background-size:auto,22px 22px;box-shadow:0 30px 60px rgba(27,42,94,.25)}
.lt-ring{position:relative;width:clamp(150px,22vw,190px);aspect-ratio:1}
.lt-ring svg{width:100%;height:100%;transform:rotate(-90deg)}
.lt-ring circle{fill:none;stroke:rgba(255,255,255,.14);stroke-width:10}
.lt-ring .lt-ring-run{stroke:#fff;stroke-linecap:round;transition:stroke-dashoffset 1.4s cubic-bezier(.2,.8,.2,1)}
.lt-ring-center{position:absolute;inset:0;display:grid;place-content:center;text-align:center}
.lt-ring-center strong{font-family:var(--serif);font-size:clamp(28px,3.6vw,38px);line-height:1}
.lt-ring-center span{font-size:13px;opacity:.8;margin-top:6px}
.lt-res-copy .lt-kicker{color:#ffb3ba}
.lt-level-code{display:flex;align-items:center;flex-wrap:wrap;gap:12px 18px;margin-bottom:14px}
.lt-level-badge{font-family:var(--serif);font-weight:700;font-size:clamp(40px,6vw,60px);line-height:1;background:#fff;color:var(--red);border-radius:16px;padding:8px 18px}
.lt-level-name{font-family:var(--serif);font-weight:700;font-size:clamp(22px,2.8vw,30px)}
.lt-level-text p{color:rgba(255,255,255,.9);margin:0}
.lt-level-text p + p{margin-top:8px}

.lt-scale{display:grid;grid-template-columns:repeat(auto-fit,minmax(80px,1fr));gap:8px;margin:22px 0}
.lt-scale li{text-align:center;background:#fff;border:1px solid var(--line);border-radius:12px;padding:10px 6px}
.lt-scale strong{display:block;font-family:var(--serif);color:var(--navy);font-size:18px}
.lt-scale span{font-size:12px;color:#6b7390}
.lt-scale .now{background:var(--red);border-color:var(--red);transform:translateY(-4px);box-shadow:0 10px 20px rgba(212,42,60,.3)}
.lt-scale .now strong,.lt-scale .now span{color:#fff}

.lt-res-grid{display:grid;grid-template-columns:1.1fr 1fr;gap:20px;align-items:start}
.lt-res-grid h3{font-size:21px;margin-bottom:14px}
.lt-next-step p{margin-bottom:12px}
.lt-res-actions{display:flex;flex-wrap:wrap;gap:12px;margin-top:20px}
.btn-ghost-navy{border:2px solid var(--navy);color:var(--navy);padding:13px 28px}
.btn-ghost-navy:hover{background:var(--navy);color:#fff}
.lt-stage-row + .lt-stage-row{margin-top:14px}
.lt-stage-row-top{display:flex;justify-content:space-between;gap:12px;font-size:14px;margin-bottom:6px}
.lt-stage-row-top span{color:var(--text)}
.lt-stage-row-top strong{color:var(--navy)}
.lt-stages .lt-bar span{transition:width 1.2s cubic-bezier(.2,.8,.2,1)}

.lt-note{margin-top:20px;background:#fff;border:1px solid var(--line);border-left:4px solid var(--navy);border-radius:14px}
.lt-note summary{cursor:pointer;padding:18px 22px;font-weight:700;color:var(--navy)}
.lt-note-body{padding:0 22px 20px;font-size:15px}
.lt-note-body p{margin:0 0 10px}
.lt-checks{display:grid;grid-template-columns:repeat(auto-fit,minmax(200px,1fr));gap:6px 16px;margin:0 0 14px}
.lt-checks li{display:flex;gap:8px;align-items:center}
.lt-checks li::before{width:20px;height:20px;border-radius:50%;display:grid;place-items:center;font-size:11px;font-weight:700;flex-shrink:0}
.lt-checks .yes::before{content:"✓";background:#e5f4ec;color:var(--lt-green)}
.lt-checks .no::before{content:"✕";background:var(--red-tint);color:var(--red)}

@media (max-width:900px){
  .lt-intro-grid,.lt-res-grid{grid-template-columns:1fr}
}
@media (max-width:640px){
  .lt-res-hero{grid-template-columns:1fr;justify-items:center;text-align:center}
  .lt-res-hero p,.lt-level-text p{text-align:center}
  .lt-level-code{justify-content:center}
  .lt-timer{top:12px;right:12px;width:48px;height:48px}
  .lt-question:has(.lt-timer){padding-top:72px}
  .lt-question:has(.lt-timer) .lt-q-text,.lt-question:has(.lt-timer) .lt-passage{margin-right:0}
  .lt-next,.lt-res-actions .btn{width:100%}
  .lt-opt{padding:12px}
}
@media (prefers-reduced-motion:reduce){
  .lt-bar span,.lt-ring .lt-ring-run,.lt-opt,.lt-timer .lt-timer-run{transition:none}
  .lt-spinner{animation-duration:2s}
}