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strong{color:var(--texto);font-family:var(--font-display),var(--font-sans),ui-sans-serif,system-ui,sans-serif;font-size:clamp(1.55rem,3vw,2.05rem);line-height:1.05}.course-topic-nav-head small{color:var(--texto-secundario);font-weight:700}.course-topic-percent{position:absolute;right:16px;top:16px;color:var(--primario);font-family:var(--font-display),var(--font-sans),ui-sans-serif,system-ui,sans-serif;font-weight:800}.course-progress-meter{height:8px;overflow:hidden;border-radius:999px;background:color-mix(in srgb,var(--primario) 11%,var(--linea));margin-top:8px}.course-progress-meter span{display:block;width:var(--course-progress,0);height:100%;border-radius:inherit;background:var(--primario);transition:width .18s ease}.course-topic-mobile-button{display:none;min-height:40px;border:1px solid var(--linea);border-radius:var(--radio-md);background:var(--superficie);color:var(--texto);cursor:pointer;font-weight:800}.course-topic-list{display:grid;align-content:start;grid-gap:7px;gap:7px}.topic-nav-item{position:relative;display:grid;grid-template-columns:auto minmax(0,1fr);grid-gap:10px 11px;gap:10px 11px;align-items:center;border:1px solid var(--linea);border-radius:14px;background:var(--fondo);padding:11px 12px;color:var(--texto);transition:border-color .16s ease,background .16s ease,box-shadow .16s ease,transform .16s ease}a.topic-nav-item:hover{border-color:color-mix(in srgb,var(--primario) 34%,var(--linea));background:var(--superficie);box-shadow:var(--sombra-sm);transform:translateY(-1px)}.topic-nav-item.active{border-color:var(--primario);background:color-mix(in srgb,var(--primario) 9%,white);box-shadow:inset 3px 0 0 var(--primario)}.topic-nav-item.completed{border-color:rgba(22,163,74,.28);background:#f0fdf4}.topic-nav-item.locked{color:var(--texto-suave);background:#f8fafc;opacity:.72}.topic-nav-number{display:grid;width:34px;height:34px;place-items:center;border-radius:999px;background:var(--superficie);color:var(--primario);font-family:var(--font-display),var(--font-sans),ui-sans-serif,system-ui,sans-serif;font-weight:800}.topic-nav-item.locked .topic-nav-number{color:var(--texto-suave)}.topic-nav-copy{min-width:0}.topic-nav-copy small,.topic-nav-copy strong{display:block}.topic-nav-copy strong{overflow:hidden;color:inherit;font-size:.92rem;line-height:1.25;text-overflow:ellipsis;white-space:nowrap}.topic-nav-copy small{margin-top:3px;color:var(--texto-secundario);font-size:.8rem;font-weight:700}.topic-nav-status{display:inline-flex;align-items:center;gap:5px;grid-column:2;color:var(--texto-secundario);font-size:.78rem;font-weight:800}.topic-nav-item.active .topic-nav-copy small,.topic-nav-item.active .topic-nav-status{color:var(--primario)}.topic-nav-item.completed .topic-nav-status{color:var(--ok)}.login-shell{min-height:calc(100dvh - 88px);padding:clamp(36px,6vw,76px) 20px;background:radial-gradient(circle at 18% 16%,rgba(30,136,229,.12),transparent 30%),radial-gradient(circle at 84% 18%,rgba(13,122,95,.13),transparent 28%),linear-gradient(180deg,var(--fondo),var(--fondo-suave))}.login-card{width:min(100%,560px);padding:clamp(24px,5vw,38px)}.login-card h1{margin:14px 0 12px;font-size:clamp(2rem,5vw,3rem)}.login-form label>span{color:var(--texto-secundario)}.login-form input{padding:14px 0;font:inherit}.login-form label>span:focus-within{border-color:var(--primario);box-shadow:0 0 0 4px color-mix(in srgb,var(--primario) 14%,transparent)}.selected-plan{border:1px solid color-mix(in srgb,var(--primario) 30%,var(--linea));padding:15px}.checkout-state{display:grid;grid-gap:16px;gap:16px}.state-icon{width:56px;height:56px}.state-icon-ok{background:#dcfce7;color:var(--ok)}.upload-box{display:grid;grid-gap:14px;gap:14px}.upload-zone{position:relative;display:grid;grid-gap:10px;gap:10px;border:1.5px dashed color-mix(in srgb,var(--primario) 32%,var(--linea-fuerte));border-radius:var(--radio-md);background:radial-gradient(circle at 100% 0,color-mix(in srgb,var(--primario) 8%,transparent),transparent 34%),var(--fondo);padding:24px;cursor:pointer;transition:background .16s ease,border-color .16s ease,box-shadow .16s ease}.upload-zone:hover{border-color:var(--primario);background:var(--superficie);box-shadow:var(--sombra-sm)}.upload-zone:focus-within{border-color:var(--primario);box-shadow:0 0 0 4px var(--color-primary-ring)}.upload-zone strong{display:flex;align-items:center;gap:9px;color:var(--texto)}.upload-zone span{color:var(--texto-secundario)}.file-input{position:absolute;width:1px;height:1px;opacity:0;pointer-events:none}.selected-file{display:flex;align-items:center;justify-content:space-between;gap:12px;border:1px solid rgba(22,163,74,.22);border-radius:var(--radio-md);background:var(--superficie-verde);padding:14px;color:var(--texto)}.selected-file strong{color:var(--ok);font-size:.9rem}.result{margin-top:22px;border-color:var(--primario);padding:24px;box-shadow:var(--sombra-md)}.result-header{display:grid;grid-gap:18px;gap:18px;align-items:start}.result-score{display:grid;width:108px;height:108px;place-items:center;border-radius:999px;background:var(--superficie-verde)}.result-score.pending{background:#fef3c7}.result-score-inner{text-align:center}.result-score strong{display:inline-block;color:var(--primario);font-family:var(--font-display);font-size:2.5rem;line-height:.9}.result-score.pending strong{color:var(--ambar)}.result-score span{color:var(--texto-secundario);font-weight:800}.result h2{font-size:clamp(1.75rem,2.5vw,2.25rem)}.score-bar{height:12px;overflow:hidden;border-radius:999px;background:var(--fondo-suave)}.score-bar span{display:block;width:var(--score);height:100%;border-radius:inherit;background:var(--primario)}.criteria{display:grid;grid-gap:12px;gap:12px;margin-top:24px}.criterion{display:grid;grid-template-columns:auto 1fr auto;grid-gap:14px;gap:14px;align-items:center;border-left:4px solid transparent;border-radius:var(--radio-md);background:var(--fondo-suave);padding:14px}.criterion small{color:var(--texto-secundario)}.criterion-ok{border-left-color:var(--ok);background:#dcfce7}.criterion-error{border-left-color:var(--error);background:#fee2e2}.criterion-partial{border-left-color:var(--ambar);background:#fef3c7}.criterion svg{color:var(--texto-secundario)}.criterion-ok svg{color:var(--ok)}.criterion-error svg{color:var(--error)}.criterion-partial svg{color:var(--ambar)}.recommendations{margin-top:18px;border:1px solid var(--linea);border-radius:var(--radio-md);background:var(--fondo);padding:16px}.recommendations h3{margin-bottom:12px;font-size:1rem}.recommendations .clean-list{margin-top:0}.result-actions{display:flex;flex-wrap:wrap;gap:12px;margin-top:18px}.purchase-modal-backdrop{position:fixed;inset:0;z-index:1000;display:grid;place-items:center;padding:20px;background:rgba(28,25,23,.5);-webkit-backdrop-filter:blur(8px);backdrop-filter:blur(8px)}.purchase-modal{width:min(100%,920px);max-height:calc(100dvh - 40px);overflow-y:auto;border:1px solid color-mix(in srgb,var(--primario) 26%,var(--linea));border-radius:var(--radio-lg);background:radial-gradient(circle at 12% 0,color-mix(in srgb,var(--primario) 14%,transparent),transparent 34%),var(--superficie);box-shadow:var(--sombra-xl);padding:clamp(20px,4vw,30px)}.purchase-modal-head{display:grid;grid-template-columns:1fr auto;grid-gap:18px;gap:18px;align-items:start}.purchase-modal h2{margin:14px 0 10px;font-size:clamp(1.8rem,4vw,2.4rem)}.purchase-modal p{margin-bottom:0}.modal-close{display:inline-grid;width:42px;height:42px;place-items:center;border:1px solid var(--linea);border-radius:999px;background:var(--superficie);color:var(--texto);box-shadow:var(--sombra-sm);cursor:pointer}.modal-close:hover{border-color:var(--linea-fuerte);background:var(--fondo-suave)}.purchase-options{display:grid;grid-gap:12px;gap:12px;margin-top:22px}.purchase-steps{margin:22px 0 0}.purchase-flow{display:grid;grid-template-columns:minmax(0,.92fr) minmax(320px,.82fr);grid-gap:18px;gap:18px;align-items:start;margin-top:22px}.purchase-option{display:grid;width:100%;grid-template-columns:minmax(0,1fr) auto;grid-gap:18px;gap:18px;align-items:center;border:1px solid var(--linea);border-radius:var(--radio-md);background:color-mix(in srgb,var(--superficie) 88%,var(--fondo-suave));padding:18px;color:var(--texto);cursor:pointer;font:inherit;text-align:left;transition:transform .18s ease,border-color .18s ease,box-shadow .18s ease}.purchase-option:hover:not(:disabled){transform:translateY(-2px);border-color:color-mix(in srgb,var(--primario) 40%,var(--linea));box-shadow:var(--sombra-md)}.purchase-option:disabled{cursor:wait;opacity:.72}.purchase-option-primary{border-color:color-mix(in srgb,var(--primario) 55%,var(--linea));background:linear-gradient(180deg,var(--superficie),var(--superficie-verde))}.purchase-option-active{border-color:var(--primario);box-shadow:0 0 0 4px color-mix(in srgb,var(--primario) 13%,transparent)}.purchase-option small,.purchase-option strong{display:block}.purchase-option strong{margin-bottom:6px;font-size:1.05rem}.purchase-option small{color:var(--texto-secundario);line-height:1.45}.purchase-option-side{display:inline-flex;align-items:center;gap:10px;color:var(--primario)}.purchase-option-side b{font-family:var(--font-display),var(--font-sans),ui-sans-serif,system-ui,sans-serif;font-size:1.25rem}.purchase-auth-empty,.purchase-auth-panel{border:1px solid var(--linea);border-radius:var(--radio-md);background:var(--fondo);padding:clamp(18px,3vw,24px)}.purchase-auth-panel .login-form{margin-top:18px}.purchase-auth-panel .button{justify-content:center;width:100%}.purchase-auth-empty{display:grid;min-height:100%;align-content:center;grid-gap:12px;gap:12px}.purchase-auth-empty svg{color:var(--primario)}.purchase-auth-empty h2{margin:0;font-size:clamp(1.4rem,3vw,1.9rem)}.notice,.result .notice{border-radius:var(--radio-md);background:var(--superficie-azul);padding:15px 16px;color:var(--texto);line-height:1.55}.result .notice{margin-top:18px;border-left:4px solid var(--azul)}.rubric-table{display:grid;grid-gap:0;gap:0;overflow:hidden;border:1px solid var(--linea);border-radius:var(--radio-md)}.rubric-row{display:grid;grid-template-columns:1fr auto;grid-gap:16px;gap:16px;padding:13px 14px;border-bottom:1px solid var(--linea);color:var(--texto-secundario)}.rubric-row:last-child{border-bottom:0}.rubric-row strong{color:var(--texto)}.error-text{color:var(--error);font-weight:700}.subtle-copy{color:var(--texto-suave);font-size:.9rem}.lessons-layout{display:grid;grid-template-columns:minmax(0,1fr) minmax(320px,.42fr);grid-gap:28px;gap:28px;align-items:start}.lesson-card{position:relative;display:grid;grid-template-columns:auto minmax(0,1fr) auto;grid-gap:20px;gap:20px;align-items:center;margin-bottom:14px;overflow:hidden;border-color:color-mix(in srgb,var(--primario) 16%,var(--linea));background:linear-gradient(90deg,color-mix(in srgb,var(--primario) 7%,transparent),transparent 44%),var(--superficie);padding:22px;transition:border-color .16s ease,box-shadow .16s ease,transform .16s ease}.lesson-card:not(.locked):hover{border-color:var(--primario);box-shadow:0 14px 34px color-mix(in srgb,var(--primario) 14%,transparent);transform:translateX(4px)}.lesson-card.locked{border-color:var(--linea);background:#f8fafc;opacity:1}.lesson-card.locked h3{color:#475569}.lesson-card.locked p{color:#64748b}.lesson-card h3{margin-bottom:8px;color:var(--texto);font-size:clamp(1.16rem,1.55vw,1.4rem);line-height:1.16}.lesson-card p{max-width:76ch;color:var(--texto-secundario);font-size:.98rem;line-height:1.6}.lesson-card .course-meta{display:flex;flex-wrap:wrap;gap:8px;margin-bottom:10px}.course-progress-summary{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));grid-gap:12px;gap:12px;margin-bottom:18px}.course-progress-summary div{border:1px solid color-mix(in srgb,var(--primario) 16%,var(--linea));border-radius:var(--radio-md);background:linear-gradient(180deg,color-mix(in srgb,var(--primario) 7%,transparent),transparent 120px),var(--superficie);padding:14px}.course-progress-summary span,.course-progress-summary strong{display:block}.course-progress-summary strong{color:var(--primario);font-family:var(--font-display);font-size:1.35rem}.course-progress-summary span{color:var(--texto-secundario);font-size:.88rem;font-weight:700}.lesson-number{display:grid;width:60px;height:60px;place-items:center;border:1px solid color-mix(in srgb,var(--primario) 18%,transparent);border-radius:18px;background:radial-gradient(circle at 35% 24%,white 0 24%,transparent 25%),var(--superficie-verde);color:var(--primario);font-family:var(--font-display);font-size:1.25rem;font-weight:700;box-shadow:inset 0 0 0 1px rgba(255,255,255,.72)}.lesson-card.locked .lesson-number{background:var(--fondo-suave);color:var(--texto-suave)}.lesson-card-test{border-style:dashed;background:linear-gradient(90deg,color-mix(in srgb,var(--azul) 8%,transparent),transparent 48%),var(--superficie)}.lesson-card-test:not(.locked):hover{border-color:var(--azul);box-shadow:0 14px 34px color-mix(in srgb,var(--azul) 13%,transparent)}.lesson-card-final{border-style:solid;background:radial-gradient(circle at 100% 0,color-mix(in srgb,var(--primario) 12%,transparent),transparent 34%),linear-gradient(90deg,color-mix(in srgb,var(--azul) 10%,transparent),transparent 48%),var(--superficie)}.lesson-number-test{background:radial-gradient(circle at 35% 24%,white 0 24%,transparent 25%),color-mix(in srgb,var(--azul) 11%,white);color:var(--azul)}.login-shell{display:grid;min-height:100vh;place-items:center;background:radial-gradient(circle at 50% 0,rgba(13,122,95,.1),transparent 36%),var(--fondo);padding:48px 16px}.login-card{width:min(100%,520px);border:1px solid var(--linea);border-radius:var(--radio-lg);background:var(--superficie);padding:34px;box-shadow:var(--sombra-xl)}.login-card h1{margin:14px 0 16px;font-size:clamp(2.2rem,5vw,3.2rem)}.login-form{display:grid;grid-gap:16px;gap:16px;margin-top:24px}.login-form label{display:grid;grid-gap:8px;gap:8px;color:var(--texto);font-weight:800}.login-form label>span{display:grid;grid-template-columns:auto 1fr;grid-gap:10px;gap:10px;align-items:center;border:1px solid var(--linea);border-radius:var(--radio-md);background:var(--fondo);padding:0 14px}.login-form input{min-height:50px;min-width:0;border:0;outline:0;background:transparent;color:var(--texto)}.selected-plan{display:grid;grid-template-columns:auto 1fr;grid-gap:12px;gap:12px;align-items:center;border-radius:var(--radio-md);background:var(--superficie-verde);padding:14px}.selected-plan svg{color:var(--primario)}.selected-plan small,.selected-plan strong{display:block}.selected-plan small{margin-top:3px;color:var(--texto-secundario)}.login-card-wide{width:min(100%,980px)}.payment-card{width:min(100%,1080px)}.checkout-brand{display:flex;align-items:center;justify-content:space-between;gap:16px;margin-bottom:22px}.checkout-brand .brand{min-width:0}.checkout-secure{display:inline-flex;align-items:center;gap:8px;border:1px solid color-mix(in srgb,var(--primario) 24%,var(--linea));border-radius:999px;background:var(--superficie-verde);padding:9px 12px;color:var(--texto);font-size:.9rem;font-weight:800;white-space:nowrap}.checkout-secure svg{color:var(--primario)}.checkout-steps{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));grid-gap:10px;gap:10px;margin-bottom:24px}.checkout-steps span{display:flex;min-height:48px;align-items:center;justify-content:center;gap:9px;border:1px solid var(--linea);border-radius:var(--radio-md);background:var(--fondo);color:var(--texto-secundario);font-weight:800}.checkout-steps b{display:grid;width:26px;height:26px;place-items:center;border-radius:999px;background:var(--linea);color:var(--texto);font-size:.86rem}.checkout-steps .active{border-color:color-mix(in srgb,var(--primario) 36%,var(--linea));background:var(--superficie-verde);color:var(--texto)}.checkout-steps .active b{background:var(--primario);color:white}.login-layout{display:grid;grid-template-columns:minmax(0,.95fr) minmax(360px,.78fr);grid-gap:clamp(24px,5vw,54px);gap:clamp(24px,5vw,54px);align-items:center}.login-copy p{font-size:1.05rem}.checkout-product-card{display:grid;grid-template-columns:minmax(0,1fr) auto;grid-gap:18px;gap:18px;align-items:end;margin:24px 0;border:1px solid color-mix(in srgb,var(--primario) 28%,var(--linea));border-radius:var(--radio-lg);background:radial-gradient(circle at 8% 0,color-mix(in srgb,var(--primario) 12%,transparent),transparent 36%),var(--superficie);padding:22px;box-shadow:var(--sombra-sm)}.checkout-product-card h2{margin:10px 0 8px;font-size:clamp(1.7rem,3vw,2.3rem)}.checkout-product-card p{margin-bottom:8px}.checkout-product-card small{color:var(--texto-secundario);font-weight:700}.checkout-product-card>strong{color:var(--primario);font-family:var(--font-display);font-size:clamp(2rem,4vw,3rem);white-space:nowrap}.login-trust-list{display:grid;grid-gap:12px;gap:12px;margin-top:24px}.login-trust-list span{display:flex;align-items:center;gap:10px;color:var(--texto-secundario);font-weight:700}.login-trust-list svg{color:var(--ok)}.login-form-card{border:1px solid var(--linea);border-radius:var(--radio-lg);background:var(--fondo);padding:clamp(18px,3vw,26px)}.payment-form-head{margin-bottom:18px}.payment-form-head h2{margin:12px 0 6px;font-size:clamp(1.45rem,3vw,2rem)}.payment-form-head p{margin-bottom:0}.auth-tabs{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));grid-gap:8px;gap:8px;border:1px solid var(--linea);border-radius:var(--radio-md);background:var(--superficie);padding:6px}.auth-tabs button{min-height:44px;border:0;border-radius:calc(var(--radio-md) - 5px);background:transparent;color:var(--texto-secundario);cursor:pointer;font:inherit;font-weight:800}.auth-tabs button.active{background:var(--texto);color:white;box-shadow:var(--sombra-sm)}.account-hero{background:radial-gradient(circle at 80% 10%,rgba(30,136,229,.12),transparent 32%),linear-gradient(180deg,var(--fondo),var(--fondo-suave));padding:70px 0 52px}.account-hero-grid{display:grid;grid-template-columns:minmax(0,1fr) minmax(320px,.42fr);grid-gap:36px;gap:36px;align-items:end}.account-alert,.account-panel,.account-summary,.account-user-card{border:1px solid var(--linea);border-radius:var(--radio-lg);background:var(--superficie);box-shadow:var(--sombra-sm)}.account-user-card{display:inline-grid;grid-template-columns:auto 1fr;gap:12px;align-items:center;margin-top:22px;padding:14px 18px}.account-user-card svg{color:var(--primario)}.account-user-card small,.account-user-card strong{display:block}.account-user-card small{color:var(--texto-secundario)}.account-summary{display:grid;grid-gap:12px;gap:12px;padding:22px}.account-summary div{display:grid;grid-template-columns:auto 1fr auto;grid-gap:12px;gap:12px;align-items:center;border-radius:var(--radio-md);background:var(--fondo);padding:14px}.account-summary strong{font-family:var(--font-display);font-size:1.65rem}.account-alert{display:grid;grid-template-columns:auto 1fr;grid-gap:12px;gap:12px;margin-bottom:22px;padding:16px 18px;border-color:rgba(245,158,11,.35);background:#fffbeb}.account-alert-ok{border-color:rgba(22,163,74,.28);background:#ecfdf5}.account-alert svg{color:var(--ok)}.account-alert strong{display:inline;color:var(--texto)}.next-action-card,.route-alert{display:grid;grid-gap:18px;gap:18px;align-items:center;border:1px solid color-mix(in srgb,var(--primario) 28%,var(--linea));border-radius:var(--radio-lg);background:radial-gradient(circle at 96% 0,color-mix(in srgb,var(--primario) 12%,transparent),transparent 34%),var(--superficie);box-shadow:var(--sombra-sm)}.next-action-card{grid-template-columns:minmax(0,1fr) auto;margin-bottom:22px;padding:22px}.next-action-card h2{margin:6px 0 8px;font-size:clamp(1.45rem,3vw,2rem)}.next-action-card p{margin-bottom:0}.account-grid{display:grid;grid-template-columns:minmax(0,1fr) minmax(300px,.36fr);grid-gap:22px;gap:22px;align-items:start}.account-panel{padding:24px}.account-panel-large{min-width:0}.account-panel-head{display:flex;justify-content:space-between;gap:18px;margin-bottom:18px}.account-course-list,.account-table{display:grid;grid-gap:12px;gap:12px}.account-course-row,.account-table-row{display:grid;grid-gap:16px;gap:16px;align-items:center;border:1px solid var(--linea);border-radius:var(--radio-md);background:var(--fondo);padding:16px}.account-course-row{grid-template-columns:auto 1fr auto}.account-course-row p{margin-bottom:0}.account-progress-line{height:8px;overflow:hidden;border-radius:999px;background:var(--linea);margin-top:12px}.account-progress-line span{display:block;height:100%;border-radius:inherit;background:var(--primario)}.account-table-row{grid-template-columns:minmax(0,1fr) auto auto auto auto}.account-table-row small,.account-table-row strong{display:block}.account-table-row small{color:var(--texto-secundario)}.account-sync-button{min-height:42px;padding:0 14px}.empty-state{display:grid;place-items:center;grid-gap:10px;gap:10px;min-height:160px;border:1px dashed var(--linea-fuerte);border-radius:var(--radio-md);background:var(--fondo);color:var(--texto-secundario);text-align:center}.attempt-card{display:grid;grid-gap:10px;gap:10px}.attempt-card strong{font-family:var(--font-display);font-size:2rem}.locked-panel{display:grid;grid-gap:16px;gap:16px;max-width:720px;margin:36px auto 0;border:1px solid var(--linea);border-radius:var(--radio-lg);background:var(--superficie);box-shadow:var(--sombra-lg);padding:clamp(24px,5vw,42px);text-align:center}.locked-panel>svg{justify-self:center;color:var(--ambar)}.locked-actions{display:flex;flex-wrap:wrap;justify-content:center;gap:12px}.section-alert{padding:24px 0 32px;background:var(--fondo-suave)}.route-alert{grid-template-columns:auto 1fr;padding:16px 18px;border-color:rgba(22,163,74,.28);background:#ecfdf5}.route-alert svg{color:var(--ok)}.lesson-workspace{display:grid;grid-template-columns:minmax(0,1fr) minmax(300px,.36fr);grid-gap:24px;gap:24px;align-items:start}.lesson-main-panel{padding:28px}.lesson-objective-card{display:grid;grid-gap:6px;gap:6px;margin:20px 0;border:1px solid color-mix(in srgb,var(--primario) 26%,var(--linea));border-radius:var(--radio-md);background:var(--superficie-verde);padding:16px}.lesson-objective-card strong{font-family:var(--font-display),var(--font-sans),ui-sans-serif,system-ui,sans-serif;font-size:1.08rem}.lesson-objective-card span{color:var(--texto-secundario);line-height:1.55}.lesson-material-card{display:grid;grid-template-columns:minmax(0,1fr) auto;grid-gap:16px;gap:16px;align-items:center;margin:20px 0;border:1px solid color-mix(in srgb,var(--primario) 22%,var(--linea));border-radius:var(--radio-md);background:linear-gradient(180deg,var(--superficie),var(--fondo));padding:16px}.lesson-material-card span,.lesson-material-card strong{display:block}.lesson-material-card strong{margin-bottom:5px;font-family:var(--font-display),var(--font-sans),ui-sans-serif,system-ui,sans-serif}.lesson-material-card span{color:var(--texto-secundario);line-height:1.55}.lesson-content-block{margin-top:24px}.lesson-content-block h3{margin-bottom:10px;font-size:clamp(1.2rem,2.5vw,1.55rem)}.lesson-goals{display:grid;grid-gap:10px;gap:10px}.lesson-goals li{display:grid;grid-template-columns:auto 1fr;grid-gap:10px;gap:10px;align-items:start}.lesson-steps{margin-top:10px}.guided-correction{display:grid;grid-gap:18px;gap:18px}.guided-correction-head h2{margin:4px 0 8px;font-size:clamp(1.35rem,2.6vw,1.9rem)}.guided-correction-head p{margin-bottom:0}.guided-upload-zone{padding:18px}.guided-criteria{display:grid;grid-gap:8px;gap:8px}.guided-criterion{display:grid;grid-template-columns:auto minmax(0,1fr);grid-gap:10px;gap:10px;align-items:start;border:1px solid var(--linea);border-radius:var(--radio-md);background:var(--fondo);padding:11px 12px}.guided-criterion-icon{margin-top:2px;color:var(--primario)}.guided-criterion small,.guided-criterion strong{display:block}.guided-criterion small{margin-top:3px;color:var(--texto-secundario);font-weight:700}.correction-primary-action{min-height:52px;font-size:1rem}.guided-result{display:grid;grid-template-columns:auto 1fr;grid-gap:12px;gap:12px;align-items:start;border-radius:var(--radio-md);padding:14px}.guided-result strong{display:block;margin-bottom:2px}.guided-result-ok{border:1px solid rgba(22,163,74,.24);background:#ecfdf5}.guided-result-ok svg{color:var(--ok)}.guided-result-pending{border:1px solid rgba(245,158,11,.28);background:#fffbeb}.guided-result-pending svg{color:var(--ambar)}.guided-result-warning{border:1px solid rgba(245,158,11,.28);background:#fffbeb}.guided-result-warning svg{color:var(--ambar)}.control-reset{justify-self:start}.progress-control{display:grid;grid-gap:14px;gap:14px;margin-top:4px}.progress-control-state{display:grid;grid-template-columns:auto 1fr;grid-gap:12px;gap:12px;align-items:start;border:1px solid rgba(22,163,74,.24);border-radius:var(--radio-md);background:#ecfdf5;padding:14px}.progress-control-state strong{display:block;margin-bottom:3px}.progress-control-actions{display:grid;grid-gap:10px;gap:10px}.progress-disabled-note{margin:0;border:1px solid var(--linea);border-radius:var(--radio-md);background:var(--fondo);color:var(--texto-secundario);padding:11px 12px;font-size:.94rem;font-weight:700}.spin-icon{animation:spin .8s linear infinite}@keyframes spin{to{transform:rotate(1turn)}}.lesson-page{padding-top:var(--header-height);min-height:100svh;overflow-x:clip;overflow-y:visible;background:var(--color-page-bg)}.lesson-page .topbar{position:fixed;top:0;right:0;left:0;z-index:60;min-height:var(--header-height)}.course-learning-shell.lesson-shell{display:grid;grid-template-columns:minmax(260px,var(--sidebar-width)) minmax(0,1fr);min-height:calc(100svh - var(--header-height));background:radial-gradient(circle at 76% 0,color-mix(in srgb,var(--primario) 7%,transparent),transparent 30%),var(--color-page-bg)}.course-learning-main.lesson-main{grid-column:2;min-width:0}.course-learning-main.lesson-main .shell{width:min(100% - 48px,1160px)}.course-learning-main .lesson-hero{border-bottom:1px solid var(--color-border);background:rgba(255,255,255,.9);padding:30px 0 24px}.course-learning-main .lesson-hero h1{max-width:940px;margin:8px 0 16px;font-size:clamp(2rem,3.2vw,3.15rem);letter-spacing:0}.lesson-objective-banner{border-color:var(--color-primary-border);background:var(--color-primary-soft)}.lesson-layout{display:grid;grid-template-columns:minmax(0,1fr) minmax(320px,var(--correction-width));grid-gap:var(--page-gap);gap:var(--page-gap);align-items:start;padding-bottom:76px}.lesson-single-column{display:grid;grid-gap:22px;gap:22px;padding-top:24px;padding-bottom:76px}.final-practice-layout{display:grid;grid-template-columns:minmax(0,1fr) minmax(320px,var(--correction-width));grid-gap:var(--page-gap);gap:var(--page-gap);align-items:start}.course-learning-main .lesson-layout{padding-top:24px}.lesson-main-surface,.lesson-stack{min-width:0}.lesson-main-surface{grid-column:1}.lesson-stack{display:flex;flex-direction:column;gap:18px}.lesson-page .lesson-card{display:grid;grid-template-columns:1fr;grid-gap:12px;gap:12px;align-items:start;margin-bottom:0;border:1px solid var(--color-border);border-radius:var(--radius-card);background:var(--color-surface);box-shadow:var(--shadow-card);padding:24px;transition:border-color .18s ease,box-shadow .18s ease}.lesson-page .lesson-card:not(.locked):hover{border-color:var(--color-border);box-shadow:var(--shadow-card);transform:none}.lesson-page .lesson-card h2{max-width:760px;margin-bottom:0;font-size:clamp(1.35rem,2.1vw,2rem);line-height:1.1}.lesson-page .lesson-card p{max-width:72ch;margin-bottom:0;color:var(--color-text-muted);line-height:1.7}.lesson-card--theory{border-left:5px solid var(--color-info);background:linear-gradient(180deg,rgba(2,132,199,.06),transparent 160px),var(--color-surface)}.lesson-card--steps{border-left:5px solid var(--color-primary);background:linear-gradient(180deg,color-mix(in srgb,var(--primario) 6%,transparent),transparent 160px),var(--color-surface)}.lesson-card--exercise{border-left:5px solid var(--color-warning);background:linear-gradient(180deg,rgba(217,119,6,.06),transparent 160px),var(--color-surface)}.lesson-card--checklist{border-left:5px solid var(--color-success);background:linear-gradient(180deg,rgba(16,185,129,.06),transparent 160px),var(--color-surface)}.lesson-card--help{border-left:5px solid var(--color-info)}.card-eyebrow{display:inline-flex;width:-moz-fit-content;width:fit-content;align-items:center;gap:6px;margin-bottom:4px;border:1px solid transparent;border-radius:999px;padding:5px 9px;font-size:.78rem;font-weight:800;line-height:1}.card-eyebrow--info{border-color:var(--color-info-border);background:var(--color-info-soft);color:var(--color-info)}.card-eyebrow--primary{border-color:var(--color-primary-border);background:var(--color-primary-soft);color:var(--color-primary)}.card-eyebrow--success{border-color:var(--color-success-border);background:var(--color-success-soft);color:var(--color-success)}.card-eyebrow--warning{border-color:var(--color-warning-border);background:var(--color-warning-soft);color:var(--color-warning)}.guided-steps{display:flex;flex-direction:column;gap:10px;margin:4px 0 0;padding:0;list-style:none}.guided-step{display:grid;grid-template-columns:32px minmax(0,1fr);grid-gap:12px;gap:12px;align-items:start;border:1px solid var(--color-border);border-radius:16px;background:var(--color-surface);padding:14px;color:var(--color-text-muted);line-height:1.6}.guided-step__number{display:inline-flex;width:26px;height:26px;align-items:center;justify-content:center;border-radius:999px;background:var(--color-primary-soft);color:var(--color-primary);font-size:.78rem;font-weight:900}.exercise-delivery-card{display:grid;grid-template-columns:minmax(0,1fr) auto;grid-gap:20px;gap:20px;align-items:center}.exercise-copy{min-width:0}.exercise-meta-list{display:grid;grid-gap:8px;gap:8px;margin:16px 0 0;padding:0;list-style:none}.exercise-meta-list li{display:flex;gap:8px;align-items:flex-start;color:var(--color-text-muted);line-height:1.5}.exercise-meta-list svg{flex:0 0 auto;margin-top:2px;color:var(--color-warning)}.exercise-meta-list strong{color:var(--color-text)}.exercise-actions{display:flex;min-width:220px;flex-direction:column;gap:10px}.objectives-checklist{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));grid-gap:12px;gap:12px;margin-top:4px}.objective-item{display:grid;grid-template-columns:28px minmax(0,1fr);grid-gap:12px;gap:12px;align-items:start;border:1px solid var(--color-success-border);border-radius:16px;background:var(--color-success-soft);padding:14px}.objective-item__icon{display:inline-flex;width:24px;height:24px;align-items:center;justify-content:center;border-radius:999px;background:var(--color-surface);color:var(--color-success)}.objective-item__text{color:var(--color-text);font-weight:700;line-height:1.35}.tutorial-list{display:flex;flex-direction:column;gap:8px;margin-top:4px}.tutorial-disclosure{border:1px solid var(--color-border);border-radius:16px;background:var(--color-surface);overflow:hidden;transition:background-color .18s ease,border-color .18s ease,box-shadow .18s ease}.tutorial-disclosure[open]{border-color:var(--color-primary-border);background:linear-gradient(180deg,var(--color-primary-soft),transparent 120px),var(--color-surface);box-shadow:var(--shadow-card)}.tutorial-summary{display:grid;grid-template-columns:24px minmax(0,1fr) 24px;grid-gap:10px;gap:10px;align-items:center;padding:12px 14px;color:var(--color-text);cursor:pointer;font-weight:800;list-style:none;transition:background-color .18s ease,transform .18s ease}.tutorial-summary::-webkit-details-marker{display:none}.tutorial-summary:hover{background:var(--color-primary-soft)}.tutorial-summary:focus-visible{outline:3px solid var(--color-primary-ring);outline-offset:-3px}.tutorial-summary svg{color:var(--color-primary)}.tutorial-summary-copy{display:grid;min-width:0;grid-gap:2px;gap:2px}.tutorial-summary-title{overflow:hidden;font-weight:500;text-overflow:ellipsis;white-space:nowrap}.tutorial-summary-copy small{color:var(--color-text-muted);font-size:.78rem;font-weight:700}.tutorial-summary-icon{justify-self:end;transition:transform .18s ease}.tutorial-disclosure[open] .tutorial-summary-icon{transform:rotate(180deg)}.tutorial-detail{display:grid;grid-gap:10px;gap:10px;border-top:1px solid var(--color-border);padding:0 14px 14px 48px}.lesson-page .tutorial-detail p{max-width:none;color:var(--color-text-muted);font-size:.94rem;line-height:1.55}.tutorial-more-link{display:inline-flex;width:-moz-fit-content;width:fit-content;align-items:center;gap:6px;color:var(--color-primary);font-weight:800;text-decoration:none}.tutorial-more-link:hover{text-decoration:underline}.tutorial-more-link:focus-visible{border-radius:8px;outline:3px solid var(--color-primary-ring);outline-offset:3px}.theory-test-panel{display:grid;grid-gap:18px;gap:18px;border:1px solid var(--color-primary-border);border-radius:var(--radius-card);background:radial-gradient(circle at 100% 0,var(--color-primary-soft),transparent 32%),var(--color-surface);box-shadow:var(--shadow-card);padding:clamp(20px,3vw,30px)}.theory-test-head{display:grid;grid-template-columns:minmax(0,1fr) auto;grid-gap:18px;gap:18px;align-items:start}.theory-test-head h1{margin:10px 0;font-size:clamp(2rem,4vw,3.4rem);line-height:1}.theory-test-head p{max-width:72ch;margin:0;color:var(--color-text-muted);line-height:1.65}.test-timer{display:grid;min-width:150px;grid-gap:4px;gap:4px;justify-items:center;border:1px solid var(--color-border);border-radius:18px;background:var(--color-surface);padding:14px;color:var(--color-primary);text-align:center}.test-timer strong{font-family:var(--font-display);font-size:1.8rem;line-height:1}.test-timer span{color:var(--color-text-muted);font-size:.78rem;font-weight:800}.test-timer-danger{border-color:color-mix(in srgb,var(--error) 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var(--color-border);border-radius:18px;background:var(--color-muted-bg);padding:18px}.state-icon{display:grid;width:54px;height:54px;place-items:center;border-radius:999px;background:var(--color-surface)}.state-icon-ok{color:var(--color-success)}.state-icon-warning{color:var(--color-warning)}.test-result-card h2{margin:8px 0;font-size:clamp(2rem,4vw,3rem);line-height:1}.test-result-card p{margin:0 0 14px;color:var(--color-text-muted);line-height:1.6}.test-question-card,.test-question-list{display:grid;grid-gap:14px;gap:14px}.test-question-card{border:1px solid var(--color-border);border-radius:18px;background:var(--color-surface);padding:18px}.test-question-card:focus-within{border-color:var(--color-primary-border);box-shadow:0 0 0 3px var(--color-primary-ring)}.test-question-card legend{display:grid;grid-template-columns:42px minmax(0,1fr);grid-gap:12px;gap:12px;align-items:start;padding:0;color:var(--color-text);font-size:1.04rem;font-weight:800;line-height:1.35}.test-question-card legend span{display:grid;width:34px;height:34px;place-items:center;border-radius:999px;background:var(--color-primary-soft);color:var(--color-primary);font-family:var(--font-display);font-size:.9rem}.test-options{display:grid;grid-gap:8px;gap:8px}.test-option{display:grid;grid-template-columns:auto minmax(0,1fr);grid-gap:10px;gap:10px;align-items:start;border:1px solid var(--color-border);border-radius:14px;background:var(--color-muted-bg);padding:12px;color:var(--color-text-muted);cursor:pointer;font-weight:700;line-height:1.45;transition:border-color .16s ease,background .16s ease,transform .16s ease}.test-option:hover{border-color:var(--color-primary-border);background:var(--color-primary-soft);transform:translateY(-1px)}.test-option input{margin-top:3px;accent-color:var(--color-primary)}.test-option.selected{border-color:var(--color-primary);background:var(--color-primary-soft);color:var(--color-text)}.test-option.correct{border-color:var(--color-success-border);background:var(--color-success-soft);color:var(--color-text)}.test-option.wrong{border-color:color-mix(in srgb,var(--error) 26%,var(--color-border));background:#fef2f2;color:var(--color-text)}.test-explanation{margin:0;border-left:4px solid var(--color-primary-border);border-radius:12px;background:var(--color-muted-bg);padding:12px 14px;color:var(--color-text-muted);line-height:1.55}.test-submit-button{width:-moz-fit-content;width:fit-content;min-width:220px}.correction-rail{position:-webkit-sticky;position:sticky;top:calc(var(--header-height) + 16px);z-index:30;max-height:calc(100svh - var(--header-height) - 32px);align-self:start;overflow-y:auto;scrollbar-gutter:stable;transition:width .18s ease,box-shadow .18s ease}.correction-rail:has(.purchase-modal-backdrop){z-index:1000}.correction-panel{border:0;border-radius:var(--radius-card);background:transparent;box-shadow:none;padding:0}.correction-panel>.lesson-card{margin-bottom:12px;border-radius:16px;box-shadow:none;padding:12px}.correction-panel>.lesson-card h2{font-size:clamp(1.08rem,1.5vw,1.24rem)}.correction-panel>.lesson-card p{font-size:.88rem;line-height:1.45}.correction-panel .exercise-delivery-card{grid-template-columns:1fr;gap:10px}.correction-panel .exercise-actions{width:100%;min-width:0}.correction-panel .exercise-meta-list{gap:6px;margin-top:10px}.correction-panel .exercise-meta-list li{font-size:.86rem;line-height:1.35}.correction-panel .exercise-meta-list li:last-child{display:none}.correction-panel .exercise-actions .button{min-height:44px;padding:0 12px;font-size:.9rem}.correction-panel .exercise-actions .button-secondary{display:none}.correction-section{display:grid;grid-gap:12px;gap:12px;border:1px solid var(--color-border);border-radius:16px;background:var(--color-muted-bg);padding:14px;scroll-margin-top:calc(var(--header-height) + 22px)}.correction-section:focus-visible,.correction-section:target{outline:3px solid var(--color-primary-ring);outline-offset:3px}.correction-section+.correction-section{margin-top:12px}.correction-panel .guided-correction-head h2,.correction-section h2{margin-bottom:0;font-size:clamp(1.25rem,2vw,1.75rem);line-height:1.12}.correction-panel .guided-correction-head p,.correction-section p{margin-bottom:0;color:var(--color-text-muted);line-height:1.6}.correction-panel .button{width:100%}.course-topic-panel{position:-webkit-sticky;position:sticky;top:var(--header-height);align-self:start;height:calc(100svh - var(--header-height));border-right:1px solid var(--color-border);background:radial-gradient(circle at 100% 0,color-mix(in srgb,var(--primario) 7%,transparent),transparent 42%),color-mix(in srgb,var(--color-surface) 94%,var(--primario) 6%);overflow:hidden;padding:18px;transition:width var(--sidebar-transition-duration) var(--sidebar-transition-ease),padding var(--sidebar-transition-duration) var(--sidebar-transition-ease),box-shadow .24s ease,border-color .24s ease}.course-topic-nav{display:flex;height:100%;min-height:0;flex-direction:column;gap:14px}.course-topic-nav-head{flex:0 0 auto;border-color:var(--color-primary-border);background:var(--color-surface);box-shadow:var(--shadow-soft)}.course-topic-list{flex:1 1 auto;min-height:0;overflow-y:auto;padding:2px 4px 2px 0;scrollbar-gutter:stable}.topic-nav-item{grid-template-columns:34px minmax(0,1fr) auto;border-color:var(--color-border);background:var(--color-surface);padding:12px;transition:grid-template-columns var(--sidebar-transition-duration) var(--sidebar-transition-ease),min-height var(--sidebar-transition-duration) var(--sidebar-transition-ease),width var(--sidebar-transition-duration) var(--sidebar-transition-ease),padding var(--sidebar-transition-duration) 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