@font-face{font-family:Inter;src:url('fonts/inter-latin.woff') format('woff');font-weight:100 900;font-style:normal;font-display:swap}
@font-face{font-family:Sora;src:url('fonts/sora-latin.woff') format('woff');font-weight:100 800;font-style:normal;font-display:swap}
:root{color-scheme:light;--blue:#123B73;--navy:#082A55;--green:#2FA84F;--action:#237A3B;--ink:#263547;--muted:#526176;--line:#DCE4ED;--soft:#F1F5FA;--light:#EDF2F6;--dark:#8CA4BB;--danger:#A52E29}
*,:before,:after{box-sizing:border-box}
html,body{margin:0;padding:0;min-height:0;height:auto;background:transparent}
body{font-family:Inter,system-ui,sans-serif;font-size:14px;line-height:1.5;color:var(--ink)}
button,input,textarea{font:inherit}button,a,input,textarea,summary{-webkit-tap-highlight-color:transparent;touch-action:manipulation}
button{cursor:pointer}button:disabled{cursor:default;opacity:.65}
button:focus-visible,a:focus-visible,summary:focus-visible,input:focus-visible,textarea:focus-visible{outline:3px solid var(--blue);outline-offset:3px}
[hidden]{display:none!important}.compact-only{display:none!important}
h1,h2,h3,p{margin:0}h1,h2,h3{color:var(--navy);line-height:1.3}h1,h2,h3,.eyebrow{font-family:Sora,Inter,system-ui,sans-serif}h1{font-size:26px;letter-spacing:-.035em}h2{font-size:18px;letter-spacing:-.02em}h3{font-size:15px}
.nc-app{width:100%;max-width:1080px;margin:0 auto;padding:24px;background:var(--soft);border:1px solid var(--line);border-radius:20px;overflow-wrap:break-word}
.app-header{margin-bottom:22px}.brand-line{display:flex;align-items:center;justify-content:space-between;gap:8px;margin-bottom:9px}.eyebrow{font-size:11px;font-weight:700;letter-spacing:.07em;text-transform:uppercase;color:var(--blue)}.subheading{color:var(--muted);margin-top:7px;font-size:13px}
.mode-switch{display:flex;gap:4px;padding:4px;margin-top:18px;background:#E2E9F1;border-radius:12px;max-width:340px}.mode-switch button{border:0;flex:1;min-height:44px;background:transparent;color:var(--muted);border-radius:9px;font-weight:600}.mode-switch [aria-pressed=true]{color:var(--blue);background:white;box-shadow:0 1px 4px #082A5512}
.workspace{display:grid;grid-template-columns:minmax(0,1fr);gap:22px}.board-column,.learning-column{min-width:0}.board-top{display:flex;justify-content:space-between;font-size:12px;color:var(--blue);font-weight:600;margin:0 0 10px 18px}
.board-frame{display:grid;grid-template-columns:18px minmax(0,1fr);grid-template-rows:minmax(0,1fr) 18px;width:100%;max-width:480px;margin-inline:auto;align-items:stretch}
/* Los contenidos no participan en el tamaño de las pistas de Grid. */
.board{grid-column:2;grid-row:1;position:relative;width:100%;aspect-ratio:1 / 1;display:grid;grid-template-columns:repeat(8,minmax(0,1fr));grid-template-rows:repeat(8,minmax(0,1fr));gap:0;padding:0;border:0;box-shadow:0 0 0 1px #567088,0 5px 15px #082A5510;border-radius:3px;overflow:hidden;isolation:isolate;touch-action:manipulation}
.square{appearance:none;-webkit-appearance:none;position:relative;display:block;width:100%;height:100%;min-width:0;min-height:0;margin:0;padding:0;border:0;border-radius:0;line-height:1;background:var(--light);color:var(--navy);overflow:hidden}
.square.dark{background:var(--dark)}.square img{position:absolute;width:88%;height:88%;left:6%;top:6%;object-fit:contain;pointer-events:none;user-select:none;-webkit-user-drag:none}
.square.selected{box-shadow:inset 0 0 0 3px #082A55,inset 0 0 0 5px #fff}.square.selected:before{content:'•';position:absolute;z-index:2;left:3px;top:1px;color:#082A55;font-size:14px;line-height:1;text-shadow:0 0 2px white}
.square.destination:after{content:'';position:absolute;inset:38%;border-radius:50%;background:#082A55;border:1px solid #fff;pointer-events:none;opacity:.85}
.square.destination.capture:after{inset:7%;border:3px dashed #082A55;background:transparent;box-shadow:0 0 0 1px #fff;border-radius:50%}
.square.last:before{content:'';position:absolute;inset:2px;border:2px dashed #123B73;pointer-events:none}.square.solved:before{border:3px solid #18622E}.square:focus-visible{outline:3px solid #082A55;outline-offset:-3px;z-index:3;box-shadow:inset 0 0 0 5px #fff}
.rank-labels{grid-column:1;grid-row:1;display:grid;grid-template-rows:repeat(8,minmax(0,1fr))}.file-labels{grid-column:2;grid-row:2;display:grid;grid-template-columns:repeat(8,minmax(0,1fr))}.rank-labels span,.file-labels span{display:grid;place-items:center;font-size:11px;font-weight:600;color:#455D76;line-height:1;user-select:none}
.board-help{text-align:center;font-size:12px;color:var(--muted);margin:10px 0 6px}.board-tools{display:flex;justify-content:center;gap:8px}.help{margin-top:8px;border-top:1px solid var(--line);font-size:12px}.help summary{padding:12px 0;min-height:44px;cursor:pointer;font-weight:600;color:var(--blue)}.help p{margin:0 0 12px;color:var(--muted)}
.move-form{display:flex;gap:8px;align-items:end}.move-form label{flex:1;min-width:0;font-weight:600}.move-form input{display:block;width:100%;min-height:44px;border:1px solid #8295AA;border-radius:8px;padding:8px;margin-top:4px;text-transform:lowercase}
.learning-column{display:flex;flex-direction:column;gap:14px}.lesson-prompt h2{margin:6px 0 7px;font-size:23px}.lesson-prompt>p:last-child{color:var(--muted);font-size:13px}
.feedback{display:flex;gap:10px;align-items:start;min-height:106px;padding:14px;background:white;border:1px solid var(--line);border-radius:12px}.feedback-symbol{display:grid;place-items:center;flex-shrink:0;width:22px;height:22px;border:1px solid #829AB4;border-radius:50%;color:var(--blue);font-size:13px;font-weight:700}.feedback h2{font-family:Inter,system-ui,sans-serif;font-size:13px;font-weight:700;margin:1px 0 4px}.feedback p{font-size:13px;color:var(--muted);line-height:1.55}.feedback.success{background:#F0F8F2;border-color:#87B894}.feedback.success .feedback-symbol{background:#237A3B;border-color:#237A3B;color:white}.feedback.error{background:#FFF5F2;border-color:#CD9891}.feedback.error .feedback-symbol{background:#A52E29;border-color:#A52E29;color:white}.feedback.hint{background:#F6F8FD;border-color:#A0B3D0}
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;min-height:44px;padding:10px 14px;border:1px solid transparent;border-radius:9px;font-size:13px;line-height:1.4;font-weight:600;text-align:center;text-decoration:none;white-space:normal;color:var(--blue);background:white}.btn.primary{background:var(--blue);color:white}.btn.secondary{border-color:#AFBFCE;background:white;color:var(--blue)}.btn.subtle{background:transparent;color:var(--blue);text-decoration:underline;text-underline-offset:3px}
@media(hover:hover){.btn.primary:hover{background:var(--navy)}.btn.secondary:hover{background:#EDF3F9;border-color:var(--blue)}.btn.subtle:hover{background:#E5EDF5}.square:hover{filter:brightness(.96)}}
.puzzle-actions{display:flex;flex-wrap:wrap;gap:8px}.no-tactic{width:100%}#btnSiguiente{width:100%}#btnConsecuencia{font-size:12px}
.session{padding:16px;background:white;border:1px solid var(--line);border-radius:12px}.session-head{display:flex;justify-content:space-between;align-items:center;gap:8px}.session-head h2{font-size:13px}.session-head span{font-size:11px;color:var(--muted)}progress{display:block;width:100%;height:6px;border:0;border-radius:4px;overflow:hidden;margin:12px 0;background:#E5EBF2;accent-color:var(--action)}progress::-webkit-progress-bar{background:#E5EBF2}progress::-webkit-progress-value{background:var(--action)}progress::-moz-progress-bar{background:var(--action)}
.metrics{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:8px;margin:0 0 12px}.metrics div{display:flex;flex-direction:column-reverse;gap:2px;border-right:1px solid var(--line)}.metrics div:last-child{border:0}.metrics dt{font-size:11px;color:var(--muted)}.metrics dd{margin:0;font-size:22px;color:var(--navy);font-weight:600;font-variant-numeric:tabular-nums}.small{font-size:11px;color:var(--muted);line-height:1.6}.session-result{border-top:1px solid var(--line);padding-top:14px;margin-top:12px}.session-result p{font-size:12px;color:var(--muted);margin:7px 0 12px}.reflection{font-style:italic}
.routine{padding:2px 0 4px}.routine h2{font-size:14px;margin-bottom:6px}.routine p{font-size:12px;color:var(--muted)}.benefits{border-top:1px solid var(--line);padding-top:12px}.benefits h2{font-family:Inter,system-ui,sans-serif;font-size:12px;font-weight:700;margin-bottom:7px}.benefits ul{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:5px 12px;padding:0;margin:0;list-style:none}.benefits li{position:relative;padding-left:11px;font-size:11px;color:#40546B;line-height:1.45}.benefits li:before{position:absolute;content:'';left:0;top:.45em;width:4px;height:4px;background:var(--green);border-radius:50%}
.free-controls>label{font-weight:600;font-size:13px}.free-controls textarea{resize:vertical;display:block;width:100%;min-height:85px;max-height:240px;border:1px solid #879AB0;background:white;border-radius:9px;padding:10px;margin:6px 0 10px;font-size:12px;word-break:break-all}.inline-actions{display:flex;gap:8px;flex-wrap:wrap}.free-controls .small{margin-top:10px}.promotion{border:1px solid var(--blue);border-radius:12px;padding:14px;background:#FFF}.promotion>div{display:flex;flex-wrap:wrap;gap:8px;margin-top:10px}.promotion p{font-weight:600}
.app-footer{font-size:11px;color:var(--muted);margin-top:22px;padding-top:14px;border-top:1px solid var(--line)}.sr-only{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap;border:0}
@media(min-width:820px){.workspace{grid-template-columns:minmax(0,1.05fr) minmax(0,1fr);gap:30px}.board-column{align-self:start}}
@media(max-width:450px){.nc-app{padding:14px;border-radius:14px}h1{font-size:22px}.lesson-prompt h2{font-size:20px}.feedback{padding:12px}.session{padding:12px}.benefits ul{gap:5px 7px}.btn{padding:10px 12px}.move-form{gap:6px}}
/* La altura depende exclusivamente del contenido; nunca del viewport del iframe. */
.is-compact .full-only{display:none!important}.is-compact .compact-only{display:flex!important}.is-compact .nc-app{max-width:490px;padding:16px;background:white;border:1px solid #D7E2EC;box-shadow:0 2px 6px #082A5505;border-radius:18px}.is-compact .app-header{margin-bottom:8px}.is-compact .brand-line{margin:0}.routine-mini{font-size:10px;font-weight:600;color:var(--muted)}.is-compact .eyebrow{font-size:10px;letter-spacing:.03em}.is-compact .workspace{display:flex;flex-direction:column;gap:8px}.is-compact .compact-heading{flex-direction:column;text-align:center;margin-bottom:12px;gap:4px}.compact-heading h1{font-size:18px}.compact-heading p{font-size:11px;color:var(--muted)}.is-compact .board-frame{max-width:282px;grid-template-columns:16px minmax(0,1fr);grid-template-rows:minmax(0,1fr) 16px}.is-compact .board-help{font-size:11px;margin:7px 0 0}.is-compact .learning-column{gap:8px}.is-compact .feedback{padding:10px;min-height:70px;gap:8px}.is-compact .feedback h2{font-size:12px;margin-bottom:3px}.is-compact .feedback p{font-size:12px;line-height:1.5}.is-compact .feedback-symbol{width:18px;height:18px;font-size:11px}.is-compact .puzzle-actions{gap:7px}.is-compact .puzzle-actions .btn{flex:1}.is-compact .btn{font-size:12px}.is-compact .benefits{padding-top:9px}.is-compact .benefits h2{font-size:11px;margin-bottom:6px}.is-compact .benefits li{font-size:10px}.is-compact .free-cta{display:flex;width:100%;background:var(--action);color:white}.is-compact .free-cta:hover{background:#185C2B}
.is-compact .board-column{align-self:stretch;width:100%}
.skill-focus{max-width:480px;margin:0 auto 12px;padding:9px 12px;border-left:3px solid var(--green);background:#EAF4ED;border-radius:0 8px 8px 0;color:var(--ink)}
.skill-focus .skill-name{font-size:12px;color:#1B5E2E;line-height:1.5}.skill-focus strong{font-weight:700}
.skill-focus>p:last-child{font-size:12px;line-height:1.45;margin-top:2px;color:#40546B}
.is-compact .skill-focus{max-width:none;margin-bottom:12px;padding:8px 10px}
.square.movable{cursor:grab;touch-action:none}
.square.drag-origin img{visibility:hidden}
.square.drop-target{outline:3px solid var(--navy);outline-offset:-3px;z-index:3}
.square.drop-invalid{outline-style:dashed;outline-color:var(--danger)}
.is-dragging,.is-dragging .square{cursor:grabbing!important;user-select:none;-webkit-user-select:none}
.piece-ghost{position:fixed;z-index:9999;object-fit:contain;pointer-events:none;user-select:none;-webkit-user-select:none;transform:translate(-50%,-50%);filter:drop-shadow(0 3px 3px #082A5533)}
.mode-switch button{min-width:0;padding:8px 5px;overflow-wrap:anywhere}
.session-head{flex-wrap:wrap}
.is-compact .benefits h2,.is-compact .benefits li{font-size:12px}
.mobile-prompt{margin-bottom:16px}.mobile-prompt h2{font-size:20px;margin-bottom:7px}.mobile-prompt p{font-size:13px;color:var(--muted)}
@media(min-width:820px){.mobile-prompt{display:none}}
@media(max-width:819px){.lesson-prompt{display:none}}
@media(max-width:350px){.is-compact .nc-app{padding:12px}.is-compact .routine-mini{font-size:9px}.is-compact .eyebrow{font-size:9px}.compact-heading h1{font-size:17px}}
@media(prefers-reduced-motion:reduce){*{scroll-behavior:auto!important;transition:none!important;animation:none!important}}
@media(forced-colors:active){.square{border:1px solid CanvasText}.square.selected{outline:3px solid Highlight;outline-offset:-3px}.square.destination:after{background:Highlight}.feedback{border:1px solid CanvasText}}