@font-face{font-family:'Zilla Slab';src:url('ZillaSlab-Light.ttf') format('truetype');font-weight:300;font-style:normal}@font-face{font-family:'Zilla Slab';src:url('ZillaSlab-LightItalic.ttf') format('truetype');font-weight:300;font-style:italic}@font-face{font-family:'Zilla Slab';src:url('ZillaSlab-Regular.ttf') format('truetype');font-weight:400;font-style:normal}@font-face{font-family:'Zilla Slab';src:url('ZillaSlab-Italic.ttf') format('truetype');font-weight:400;font-style:italic}@font-face{font-family:'Zilla Slab';src:url('ZillaSlab-Medium.ttf') format('truetype');font-weight:500;font-style:normal}@font-face{font-family:'Zilla Slab';src:url('ZillaSlab-SemiBold.ttf') format('truetype');font-weight:600;font-style:normal}@font-face{font-family:'Zilla Slab';src:url('ZillaSlab-SemiBoldItalic.ttf') format('truetype');font-weight:600;font-style:italic}@font-face{font-family:'Zilla Slab';src:url('ZillaSlab-Bold.ttf') format('truetype');font-weight:700;font-style:normal}@font-face{font-family:'Zilla Slab';src:url('ZillaSlab-BoldItalic.ttf') format('truetype');font-weight:700;font-style:italic}:root{--c-primary:#99C3C3;--c-primary-dk:#5AABAB;--c-primary-lt:#CAEDED;--c-bg:#E8E8E8;--c-bg-white:#F5F5F5;--c-yellow:#FFFF4A;--c-orange:#FFBF00;--c-text:#1a1a1a;--c-muted:#555;--c-border:#ccc;--radius:4px;--font:'Zilla Slab',Georgia,serif;--success:#2a7a4f;--success-bg:#d6f0e2;--error:#b03030;--error-bg:#fde8e8}*{margin:0;padding:0;box-sizing:border-box;-webkit-tap-highlight-color:transparent;font-family:var(--font);user-select:none;-webkit-user-select:none}body{font-family:var(--font);background:var(--c-bg);color:var(--c-text);min-height:100vh;overflow-x:hidden}.header{background:var(--c-primary);padding:22px 20px 20px;border-bottom:2px solid var(--c-primary-dk)}.header-badge{display:inline-flex;align-items:center;gap:6px;background:var(--c-bg-white);border:1.5px solid var(--c-border);border-radius:var(--radius);padding:3px 10px;font-size:.65rem;color:var(--c-muted);letter-spacing:1.5px;text-transform:uppercase;margin-bottom:10px}.header-badge::before{content:'▶';font-size:7px;color:var(--c-primary-dk)}.header-titulo{font-size:22px;font-weight:700;color:var(--c-text);line-height:1.2;margin-bottom:4px}.header-subtitulo{font-size:14px;color:var(--c-text);opacity:.65;font-weight:400}.modo-selector{display:flex;margin:14px 16px 0;background:var(--c-bg-white);border:1.5px solid var(--c-border);border-radius:var(--radius);padding:3px;gap:3px}.modo-btn{flex:1;padding:9px 8px;border:none;border-radius:var(--radius);font-family:var(--font);font-size:13px;font-weight:700;cursor:pointer;transition:background .15s,color .15s;background:0 0;color:var(--c-muted)}.modo-btn.activo{background:var(--c-primary-dk);color:var(--c-text)}.confirm-overlay{display:none;position:fixed;top:0;left:0;right:0;bottom:0;background:rgba(26,26,26,.6);z-index:100;align-items:center;justify-content:center;padding:24px}.confirm-overlay.visible{display:flex}.confirm-card{background:var(--c-bg-white);border:1.5px solid var(--c-border);border-top:3px solid var(--c-primary-dk);border-radius:var(--radius);padding:24px;width:100%;max-width:340px;animation:popIn .2s ease}@keyframes popIn{from{opacity:0;transform:scale(.97)}to{opacity:1;transform:scale(1)}}.confirm-titulo{font-size:17px;font-weight:700;color:var(--c-text);margin-bottom:8px}.confirm-texto{font-size:14px;color:var(--c-muted);line-height:1.6;margin-bottom:20px}.confirm-btns{display:flex;gap:8px}.confirm-btn{flex:1;padding:11px;border:none;border-radius:var(--radius);font-family:var(--font);font-size:14px;font-weight:700;cursor:pointer;transition:background .15s}.confirm-btn.cancelar{background:var(--c-bg);color:var(--c-muted);border:1.5px solid var(--c-border)}.confirm-btn.cancelar:hover{background:#ddd}.confirm-btn.confirmar{background:var(--c-primary-dk);color:var(--c-text)}.confirm-btn.confirmar:hover{background:#489898}.confirm-btn:active{opacity:.85}.contenido{padding:0 0 32px}.info-strip{display:flex;align-items:center;justify-content:center;gap:10px;padding:12px 16px}.stat-pill{display:flex;align-items:center;gap:8px;background:var(--c-bg-white);border:1.5px solid var(--c-border);border-radius:var(--radius);padding:7px 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translateX(0);transform-origin:top left;margin-left:100vw;display:flex;align-items:center;justify-content:center}.video-wrapper.fullscreen-activo .video-container{position:relative;width:100%;padding-bottom:56.25%;height:0}.video-wrapper.fullscreen-activo .video-container iframe{position:absolute;top:0;left:0;width:100%;height:100%}.btn-fullscreen{display:none;position:absolute;bottom:12px;right:12px;z-index:20;background:rgba(0,0,0,.72);border:1.5px solid rgba(255,255,255,.4);border-radius:var(--radius);padding:10px 16px;color:#fff;font-size:26px;cursor:pointer;line-height:1;transition:background .15s}.btn-fullscreen:active{background:rgba(0,0,0,.95)}body.modo-libre .btn-fullscreen{display:block}.btn-fullscreen-cerrar{display:none;position:absolute;top:12px;left:12px;z-index:210;background:rgba(0,0,0,.75);border:1.5px solid rgba(255,255,255,.4);border-radius:var(--radius);padding:10px 16px;color:#fff;font-size:26px;cursor:pointer;line-height:1}body.modo-libre 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slideUp{from{opacity:0;transform:translateY(6px)}to{opacity:1;transform:translateY(0)}}.pregunta-num{font-size:.65rem;color:var(--c-muted);text-transform:uppercase;letter-spacing:1.5px;margin-bottom:8px}.pregunta-texto{font-size:16px;font-weight:700;color:var(--c-text);line-height:1.4;margin-bottom:14px}.repetir-antes{margin-bottom:14px}.repetir-btn-top{width:100%;background:var(--c-bg);border:1.5px solid var(--c-primary-dk);border-radius:var(--radius);padding:10px 14px;color:var(--c-primary-dk);font-family:var(--font);font-size:13px;font-weight:700;cursor:pointer;transition:background .15s,border-color .15s;display:flex;align-items:center;justify-content:center;gap:6px}.repetir-btn-top:hover{background:var(--c-primary-lt)}.repetir-btn-top:active{background:var(--c-primary)}.repetir-btn-top::before{content:'↻';font-size:16px}.repetir-antes.oculto{display:none}.opciones{display:flex;flex-direction:column;gap:8px;margin-bottom:10px}.opcion-btn{background:var(--c-bg-white);border:1.5px 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var(--c-border);margin-bottom:20px}.resumen-titulo{font-size:.65rem;color:var(--c-muted);margin-bottom:8px;text-transform:uppercase;letter-spacing:2px}.resumen-score{font-size:42px;font-weight:700;color:var(--success);line-height:1;margin-bottom:6px}.resumen-sub{font-size:14px;color:var(--c-muted)}.resumen-items{margin-bottom:20px}.resumen-item{display:flex;gap:12px;padding:12px;background:var(--c-bg);border:1.5px solid var(--c-border);border-radius:var(--radius);margin-bottom:8px}.resumen-item-icono{width:28px;height:28px;flex-shrink:0;border-radius:var(--radius);display:flex;align-items:center;justify-content:center;font-weight:700;font-size:16px}.resumen-item.ok .resumen-item-icono{background:var(--success-bg);border:1.5px solid var(--success);color:var(--success)}.resumen-item.fail .resumen-item-icono{background:var(--error-bg);border:1.5px solid var(--error);color:var(--error)}.resumen-item-body{flex:1}.resumen-item-body strong{display:block;font-size:14px;color:var(--c-text);margin-bottom:4px}.resumen-item-body small{font-size:12px;color:var(--c-muted)}.resumen-acciones{display:flex;flex-direction:column;gap:8px}.resumen-btn{width:100%;padding:12px;border:none;border-radius:var(--radius);font-family:var(--font);font-size:14px;font-weight:700;cursor:pointer;transition:background .15s}.resumen-btn.primario{background:var(--c-primary-dk);color:var(--c-text)}.resumen-btn.primario:hover{background:#489898}.resumen-btn.secundario{background:var(--c-bg);color:var(--c-muted);border:1.5px solid var(--c-border)}.resumen-btn.secundario:hover{background:#ddd}.resumen-btn:active{opacity:.85}.sin-video{display:none;flex-direction:column;align-items:center;justify-content:center;text-align:center;padding:48px 32px;gap:16px}.sin-video.visible{display:flex}.sin-video-icono{font-size:56px;line-height:1;margin-bottom:4px}.sin-video-titulo{font-size:18px;font-weight:700;color:var(--c-text);line-height:1.3}.sin-video-subtitulo{font-size:14px;color:var(--c-muted);line-height:1.6;max-width:280px}.sin-video-badge{display:inline-flex;align-items:center;gap:6px;background:var(--c-primary-lt);border:1.5px solid var(--c-border);border-radius:var(--radius);padding:6px 16px;font-size:.65rem;color:var(--c-muted);letter-spacing:1.5px;text-transform:uppercase;margin-top:4px}.profesor-card{display:none;background:var(--c-bg-white);border:1.5px solid var(--c-border);border-left:4px solid var(--c-primary-dk);border-radius:var(--radius);padding:16px;margin:16px 16px 0}.profesor-agradecimiento{display:flex;align-items:flex-start;gap:12px;margin-bottom:14px;padding-bottom:14px;border-bottom:1.5px solid var(--c-border)}.profesor-agradecimiento-icono{font-size:28px;flex-shrink:0;margin-top:2px}.profesor-agradecimiento-titulo{font-size:.7rem;text-transform:uppercase;letter-spacing:1.5px;color:var(--c-muted);margin-bottom:2px}.profesor-nombre{font-size:18px;font-weight:700;color:var(--c-text);line-height:1.2;margin-bottom:3px}.profesor-agradecimiento-sub{font-size:13px;color:var(--c-muted)}.profesor-redes-label{font-size:.65rem;text-transform:uppercase;letter-spacing:1.5px;color:var(--c-muted);margin-bottom:10px}.profesor-redes{display:flex;flex-wrap:wrap;gap:8px}.red-btn{display:inline-flex;align-items:center;gap:7px;padding:8px 14px;border-radius:var(--radius);border:1.5px solid var(--c-border);background:var(--c-bg);font-family:var(--font);font-size:13px;font-weight:700;color:var(--c-text);cursor:pointer;transition:background .15s,border-color .15s;text-decoration:none}.red-btn:hover{background:var(--c-primary-lt);border-color:var(--c-primary-dk)}.red-btn:active{opacity:.8}.red-btn-icon{font-size:16px;line-height:1}@media (min-width:900px){.profesor-card{margin:16px 0 0}}.panel-derecho{display:none}.pd-modo-selector{display:flex;background:var(--c-bg-white);border:1.5px solid var(--c-border);border-radius:var(--radius);padding:3px;gap:3px}.pd-stats{display:flex;flex-direction:column;gap:8px}.pd-stat{display:flex;align-items:center;gap:10px;background:var(--c-bg-white);border:1.5px solid var(--c-border);border-radius:var(--radius);padding:10px 14px}.pd-stat-icon{font-size:18px;flex-shrink:0}.pd-stat-body{display:flex;flex-direction:column;line-height:1.2}.pd-stat-label{font-size:.65rem;color:var(--c-muted);text-transform:uppercase;letter-spacing:1.5px}.pd-stat-value{font-size:22px;font-weight:700;color:var(--c-primary-dk)}.pd-espera{display:flex;flex-direction:column;align-items:center;justify-content:center;gap:12px;text-align:center;background:var(--c-bg-white);border:1.5px solid var(--c-border);border-radius:var(--radius);padding:28px 20px;min-height:140px}.pd-espera-icono{font-size:32px;color:var(--c-primary-dk);opacity:.5}.pd-espera-texto{font-size:13px;color:var(--c-muted);line-height:1.6;max-width:220px}@media (min-width:900px){.header{padding:28px 0 24px}.header-inner{width:90%;max-width:1400px;margin:0 auto}.modo-selector{display:none}.contenido{width:90%;max-width:1400px;margin:0 auto;padding:24px 0 48px;display:grid;grid-template-columns:1fr 340px;grid-template-rows:auto auto auto auto;column-gap:24px;align-items:start}.video-wrapper{grid-column:1;grid-row:1;width:100%;margin:0;border:1.5px solid var(--c-border)}.progreso-barra{grid-column:1;grid-row:2;width:100%;margin:0 0 0}.aviso-bloqueo{grid-column:1;grid-row:3;width:100%;margin:8px 0 0}.info-strip{display:none!important}.pregunta-card{grid-column:1;grid-row:4;width:100%;margin:16px 0 0}.panel-derecho{grid-column:2;grid-row:1/5;display:flex;flex-direction:column;gap:12px;position:sticky;top:20px}.profesor-card{grid-column:1;grid-row:5;margin:16px 0 0}.resumen-card{max-width:640px}.sin-video{padding:80px 32px}}