:root{--bg:#FAF7FF;--surface:#FFFFFF;--surface-alt:#F1ECFE;--surface-sunken:#EFE9FC;--ink:#1C1730;--ink-soft:#615A78;--ink-faint:#9089A8;--primary:#5B3DF5;--primary-dark:#4327CE;--primary-tint:#EDE8FF;--coral:#FF6B4A;--coral-tint:#FFE7DF;--mint:#00B884;--mint-tint:#DDF7EC;--amber:#F5A623;--amber-tint:#FFF1DA;--red:#F0426B;--red-tint:#FDE3EA;--border:#E6E0FA;--shadow-sm:0 2px 8px rgba(30,15,90,.06);--shadow-md:0 8px 24px rgba(30,15,90,.1);--shadow-lg:0 16px 40px rgba(30,15,90,.16);--radius-s:12px;--radius-m:18px;--radius-l:26px;--radius-pill:999px;--font-display:"Baloo 2", ui-rounded, "Segoe UI", sans-serif;--font-body:"Inter", -apple-system, "Segoe UI", sans-serif;--nav-h:64px}@media (prefers-color-scheme: dark){:root:not([data-theme=light]){--bg:#150F27;--surface:#1E1836;--surface-alt:#241D42;--surface-sunken:#120C22;--ink:#F3F0FF;--ink-soft:#B9B0DC;--ink-faint:#7C7398;--primary:#8D74FF;--primary-dark:#A997FF;--primary-tint:#2A2150;--coral:#FF8567;--coral-tint:#3A2434;--mint:#33D6A6;--mint-tint:#123528;--amber:#FFC24D;--amber-tint:#3A2C10;--red:#FF6690;--red-tint:#3A1E2A;--border:#332B58;--shadow-sm:0 2px 8px rgba(0,0,0,.3);--shadow-md:0 8px 24px rgba(0,0,0,.4);--shadow-lg:0 16px 40px rgba(0,0,0,.5)}}:root[data-theme=dark]{--bg:#150F27;--surface:#1E1836;--surface-alt:#241D42;--surface-sunken:#120C22;--ink:#F3F0FF;--ink-soft:#B9B0DC;--ink-faint:#7C7398;--primary:#8D74FF;--primary-dark:#A997FF;--primary-tint:#2A2150;--coral:#FF8567;--coral-tint:#3A2434;--mint:#33D6A6;--mint-tint:#123528;--amber:#FFC24D;--amber-tint:#3A2C10;--red:#FF6690;--red-tint:#3A1E2A;--border:#332B58;--shadow-sm:0 2px 8px rgba(0,0,0,.3);--shadow-md:0 8px 24px rgba(0,0,0,.4);--shadow-lg:0 16px 40px rgba(0,0,0,.5)}*{box-sizing:border-box}html,body,#root{margin:0;padding:0}body{background:var(--bg);color:var(--ink);font-family:var(--font-body);-webkit-font-smoothing:antialiased;min-height:100vh}h1,h2,h3,h4{font-family:var(--font-display);font-weight:700;margin:0;letter-spacing:-.01em}p{margin:0}button{font-family:var(--font-body);color:inherit}a{color:inherit;text-decoration:none}::selection{background:var(--primary);color:#fff}a:focus-visible,button:focus-visible,input:focus-visible,select:focus-visible,[tabindex]:focus-visible{outline:3px solid var(--primary);outline-offset:2px;border-radius:6px}@media (prefers-reduced-motion: reduce){*{animation-duration:.01ms!important;transition-duration:.01ms!important}}.app-shell{max-width:1180px;margin:0 auto;min-height:100vh;padding-bottom:calc(var(--nav-h) + 24px)}.app-shell{--topbar-h:66px}.topbar{position:sticky;top:0;z-index:40;display:flex;align-items:center;justify-content:space-between;gap:12px;box-sizing:border-box;height:var(--topbar-h);padding:0 20px;background:var(--bg);border-bottom:1px solid var(--border)}.brand{display:flex;align-items:center;gap:10px}.brand-mark{width:38px;height:38px;border-radius:12px;background:linear-gradient(135deg,var(--primary),#8B6BFF);display:flex;align-items:center;justify-content:center;font-size:19px;box-shadow:var(--shadow-sm)}.brand-name{font-family:var(--font-display);font-size:19px;font-weight:700;color:var(--ink)}.brand-name span{color:var(--primary)}.topbar-stats{display:flex;align-items:center;gap:10px}.stat-pill{display:flex;align-items:center;gap:6px;background:var(--surface);border:1px solid var(--border);padding:7px 12px 7px 10px;border-radius:var(--radius-pill);font-weight:700;font-size:14px;box-shadow:var(--shadow-sm)}.stat-pill.streak{color:var(--coral)}.stat-pill.xp{color:var(--primary)}main{padding:4px 20px 12px}.nav-col{display:contents}.bottom-nav{position:fixed;left:0;right:0;bottom:0;height:var(--nav-h);background:var(--surface);border-top:1px solid var(--border);display:flex;z-index:50;padding-bottom:env(safe-area-inset-bottom)}.nav-item{flex:1;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:2px;background:none;border:none;cursor:pointer;color:var(--ink-faint);font-size:11px;font-weight:600;font-family:var(--font-body);padding:6px 2px}.nav-item .nav-icon{font-size:21px;line-height:1;transition:transform .15s ease}.nav-item.active{color:var(--primary)}.nav-item.active .nav-icon{transform:translateY(-2px)}.nav-item:active .nav-icon{transform:scale(.88)}@media (min-width:900px){.app-shell{--topbar-h:74px;display:grid;grid-template-columns:220px 1fr;grid-template-rows:auto 1fr;padding-bottom:24px}.topbar{grid-column:1 / -1;padding:0 28px}.nav-col{display:block;grid-row:2;background:var(--surface);border-right:1px solid var(--border)}.bottom-nav{position:sticky;top:var(--topbar-h);left:auto;right:auto;bottom:auto;flex-direction:column;height:auto;background:transparent;border-top:none;padding:6px 14px 24px;gap:4px;justify-content:flex-start}.nav-item{flex:none;flex-direction:row;justify-content:flex-start;gap:12px;padding:12px 14px;border-radius:var(--radius-s);font-size:14.5px}.nav-item.active{background:var(--primary-tint)}.nav-item.active .nav-icon{transform:none}.nav-item .nav-icon{font-size:19px}main{grid-row:2;padding:4px 28px 40px}}.screen{animation:fadein .25s ease}@keyframes fadein{0%{opacity:0;transform:translateY(6px)}to{opacity:1;transform:translateY(0)}}.section-title{font-size:15px;font-weight:700;color:var(--ink-soft);margin:26px 0 12px}.section-title:first-child{margin-top:4px}.card{background:var(--surface);border:1px solid var(--border);border-radius:var(--radius-m);box-shadow:var(--shadow-sm)}.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;font-family:var(--font-body);font-weight:700;font-size:15px;border-radius:var(--radius-pill);border:none;cursor:pointer;padding:14px 24px;transition:transform .12s ease,box-shadow .12s ease,opacity .12s ease}.btn:active{transform:scale(.97)}.btn-primary{background:var(--primary);color:#fff;box-shadow:0 6px 0 var(--primary-dark)}.btn-primary:active{box-shadow:0 2px 0 var(--primary-dark);transform:translateY(4px) scale(.99)}.btn-coral{background:var(--coral);color:#fff;box-shadow:0 6px #d6502f}.btn-coral:active{box-shadow:0 2px #d6502f;transform:translateY(4px) scale(.99)}.btn-ghost{background:var(--surface-alt);color:var(--ink)}.btn-outline{background:transparent;color:var(--primary);border:2px solid var(--primary-tint)}.btn-block{width:100%}.btn[disabled]{opacity:.45;cursor:not-allowed;transform:none}.icon-btn{width:38px;height:38px;border-radius:50%;display:flex;align-items:center;justify-content:center;background:var(--surface);border:1px solid var(--border);cursor:pointer;font-size:16px;color:var(--ink)}.chip{display:inline-flex;align-items:center;gap:5px;font-size:12px;font-weight:700;padding:5px 11px;border-radius:var(--radius-pill);white-space:nowrap}.chip-primary{background:var(--primary-tint);color:var(--primary-dark)}.chip-coral{background:var(--coral-tint);color:var(--coral)}.chip-mint{background:var(--mint-tint);color:var(--mint)}.chip-amber{background:var(--amber-tint);color:#9a6a0c}:root[data-theme=dark] .chip-amber,:root:not([data-theme=light]) .chip-amber{color:var(--amber)}.chip-neutral{background:var(--surface-sunken);color:var(--ink-soft)}.hero-banner{background:linear-gradient(135deg,var(--primary) 0%,#7C5CFF 60%,#9B7BFF 100%);border-radius:var(--radius-l);padding:26px 24px;color:#fff;position:relative;overflow:hidden;box-shadow:var(--shadow-md)}.hero-banner:after{content:"";position:absolute;right:-40px;top:-40px;width:160px;height:160px;border-radius:50%;background:#ffffff1a}.hero-banner:before{content:"";position:absolute;right:30px;bottom:-50px;width:110px;height:110px;border-radius:50%;background:#ffffff14}.hero-eyebrow{font-size:14px;font-weight:600;opacity:.85;position:relative}.hero-headline{font-size:28px;line-height:1.15;margin:6px 0 4px;position:relative;max-width:340px}.hero-sub{font-size:14.5px;opacity:.92;position:relative;max-width:320px;line-height:1.5}.hero-cta-row{display:flex;align-items:center;gap:14px;margin-top:20px;position:relative;flex-wrap:wrap}.hero-cta{background:#fff;color:var(--primary-dark);font-family:var(--font-body);font-weight:800;font-size:15px;border:none;border-radius:var(--radius-pill);padding:14px 26px;cursor:pointer;box-shadow:0 6px #00000026}.hero-cta:active{transform:translateY(4px);box-shadow:0 2px #00000026}.hero-due-badge{display:flex;align-items:center;gap:8px;background:#ffffff29;padding:8px 14px 8px 8px;border-radius:var(--radius-pill);font-size:13.5px;font-weight:700}.hero-due-badge .n{background:#fff;color:var(--primary-dark);width:26px;height:26px;border-radius:50%;display:flex;align-items:center;justify-content:center;font-size:13px;font-family:var(--font-display)}.streak-strip{display:flex;gap:8px;margin-top:18px;overflow-x:auto;padding-bottom:2px}.streak-day{flex:1;min-width:38px;display:flex;flex-direction:column;align-items:center;gap:5px;padding:9px 4px;border-radius:14px;background:var(--surface);border:1px solid var(--border)}.streak-day .dow{font-size:10.5px;font-weight:700;color:var(--ink-faint);text-transform:uppercase;letter-spacing:.03em}.streak-day .mark{width:20px;height:20px;border-radius:50%;display:flex;align-items:center;justify-content:center;font-size:11px}.streak-day.done{background:var(--coral-tint);border-color:transparent}.streak-day.done .mark{background:var(--coral);color:#fff}.streak-day.today{border-color:var(--primary)}.streak-day .mark.empty{border:2px dashed var(--ink-faint)}.mode-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:12px}@media (min-width:640px){.mode-grid{grid-template-columns:repeat(3,1fr)}}.mode-card{background:var(--surface);border:1px solid var(--border);border-radius:var(--radius-m);padding:16px 14px;cursor:pointer;text-align:left;display:flex;flex-direction:column;gap:8px;box-shadow:var(--shadow-sm);transition:transform .12s ease,box-shadow .12s ease}.mode-card:hover{transform:translateY(-2px);box-shadow:var(--shadow-md)}.mode-card .mi{font-size:24px}.mode-card .mt{font-family:var(--font-display);font-weight:700;font-size:14.5px;line-height:1.2}.mode-card .md{font-size:12.5px;color:var(--ink-soft);line-height:1.4}.deck-progress-list{display:flex;flex-direction:column;gap:10px}.deck-row{display:flex;align-items:center;gap:12px;background:var(--surface);border:1px solid var(--border);border-radius:var(--radius-m);padding:13px 15px}.deck-row .di{width:36px;height:36px;border-radius:10px;display:flex;align-items:center;justify-content:center;font-size:18px;flex-shrink:0}.deck-row .dinfo{flex:1;min-width:0}.deck-row .dtitle{font-weight:700;font-size:14px}.deck-row .dsub{font-size:12px;color:var(--ink-faint);margin-top:2px}.progress-track{height:8px;border-radius:99px;background:var(--surface-sunken);overflow:hidden;margin-top:7px}.progress-fill{height:100%;border-radius:99px;background:var(--primary);transition:width .4s ease}.deck-row .dpct{font-family:var(--font-display);font-weight:700;font-size:14px;color:var(--ink-soft);width:38px;text-align:right;flex-shrink:0}.search-box{display:flex;align-items:center;gap:10px;background:var(--surface);border:2px solid var(--border);border-radius:var(--radius-pill);padding:12px 18px;margin-bottom:16px}.search-box input{border:none;outline:none;background:transparent;flex:1;font-size:15px;color:var(--ink);font-family:var(--font-body)}.search-box input::placeholder{color:var(--ink-faint)}.puesto-result{display:flex;align-items:center;justify-content:space-between;gap:10px;padding:14px 16px;border-radius:var(--radius-m);background:var(--surface);border:1px solid var(--border);margin-bottom:10px;cursor:pointer;width:100%;text-align:left}.puesto-result:hover{border-color:var(--primary)}.puesto-result .code{font-family:var(--font-display);font-weight:700;color:var(--primary);font-size:13.5px}.puesto-result .name{font-size:14.5px;font-weight:600;margin-top:2px}.puesto-result .org{font-size:12px;color:var(--ink-faint);margin-top:2px}.level-pick-row{display:flex;gap:10px;flex-wrap:wrap;margin-bottom:18px}.level-pick{flex:1;min-width:100px;background:var(--surface);border:2px solid var(--border);border-radius:var(--radius-m);padding:14px;text-align:center;cursor:pointer}.level-pick.selected{border-color:var(--primary);background:var(--primary-tint)}.level-pick .lt{font-family:var(--font-display);font-weight:700;font-size:14px}.level-pick .lc{font-size:11.5px;color:var(--ink-faint);margin-top:2px}.ficha-header{background:linear-gradient(135deg,var(--primary-tint),var(--surface));border-radius:var(--radius-l);padding:22px 20px;border:1px solid var(--border)}.ficha-header .code{font-family:var(--font-display);color:var(--primary);font-weight:700;font-size:13.5px}.ficha-header h2{font-size:21px;margin:6px 0 4px;line-height:1.25}.ficha-header .org{font-size:13.5px;color:var(--ink-soft)}.ficha-tags{display:flex;gap:8px;flex-wrap:wrap;margin-top:12px}.ficha-block{margin-top:20px}.ficha-block h3{font-size:15px;margin-bottom:10px;display:flex;align-items:center;gap:8px}.ficha-block p.mision{font-size:14.5px;line-height:1.65;color:var(--ink-soft);background:var(--surface);border:1px solid var(--border);border-radius:var(--radius-m);padding:16px}.ficha-list{list-style:none;margin:0;padding:0;display:flex;flex-direction:column;gap:9px}.ficha-list li{font-size:14px;line-height:1.5;color:var(--ink);background:var(--surface);border:1px solid var(--border);border-radius:var(--radius-s);padding:11px 14px;display:flex;gap:10px}.ficha-list li .bullet{color:var(--primary);font-weight:800;flex-shrink:0}.ficha-grid2{display:grid;grid-template-columns:1fr;gap:12px}@media (min-width:640px){.ficha-grid2{grid-template-columns:1fr 1fr}}.exp-box{background:var(--surface);border:1px solid var(--border);border-radius:var(--radius-m);padding:14px 16px;text-align:center}.exp-box .en{font-family:var(--font-display);font-size:22px;font-weight:700;color:var(--primary)}.exp-box .el{font-size:11.5px;color:var(--ink-faint);margin-top:2px}.sticky-cta{position:sticky;bottom:calc(var(--nav-h) + 14px);margin-top:22px}@media (min-width:900px){.sticky-cta{bottom:14px}}.data-note{background:var(--amber-tint);border:1px solid var(--amber);border-radius:var(--radius-s);padding:10px 14px;font-size:12px;color:#9a6a0c;margin-bottom:16px;line-height:1.5}:root[data-theme=dark] .data-note,:root:not([data-theme=light]) .data-note{color:var(--amber)}.filter-row{display:flex;gap:8px;overflow-x:auto;padding-bottom:6px;margin-bottom:14px;align-items:center}.filter-chip{flex-shrink:0;font-size:13px;font-weight:600;background:var(--surface);border:1px solid var(--border);color:var(--ink-soft);padding:9px 15px;border-radius:var(--radius-pill);cursor:pointer}.filter-chip.active{background:var(--ink);color:var(--bg);border-color:var(--ink)}:root[data-theme=dark] .filter-chip.active,:root:not([data-theme=light]) .filter-chip.active{background:var(--primary);border-color:var(--primary);color:#fff}.category-select{flex-shrink:0;padding:9px 14px;border-radius:var(--radius-pill);border:1px solid var(--border);background:var(--surface);color:var(--ink);font-size:13px;font-weight:600;font-family:var(--font-body);max-width:220px}.session-header{display:flex;align-items:center;gap:12px;margin-bottom:16px}.session-progress-track{flex:1;height:10px;border-radius:99px;background:var(--surface-sunken);overflow:hidden}.session-progress-fill{height:100%;background:linear-gradient(90deg,var(--primary),var(--coral));border-radius:99px;transition:width .3s ease}.session-count{font-family:var(--font-display);font-weight:700;font-size:14px;color:var(--ink-soft);white-space:nowrap}.flashcard-wrap{max-width:560px;margin:0 auto}.flashcard{background:var(--surface);border:1px solid var(--border);border-radius:var(--radius-l);padding:26px 24px 24px;box-shadow:var(--shadow-md);min-height:220px}.flashcard-tags{display:flex;gap:7px;flex-wrap:wrap;margin-bottom:14px}.flashcard-enunciado{font-size:18px;line-height:1.5;font-weight:600;color:var(--ink)}.flashcard-media{margin:16px 0;border-radius:var(--radius-s);overflow:hidden;border:1px solid var(--border);background:var(--surface-sunken);display:flex;align-items:center;justify-content:center;padding:10px;min-height:120px}.flashcard-media img{max-width:100%;height:auto;display:block;border-radius:8px}.flashcard-media.papel{background:#fff;min-height:0}.flashcard-media.papel a{display:block;width:100%;cursor:zoom-in}.flashcard-media.papel img{width:100%}.explanation-box .flashcard-media{margin:8px 0 0}.image-fallback{display:flex;flex-direction:column;align-items:center;gap:6px;color:var(--ink-faint);font-size:12.5px;padding:20px}.image-fallback .fi{font-size:28px}.alt-list{display:flex;flex-direction:column;gap:9px;margin-top:16px}.alt-option{display:flex;align-items:center;gap:12px;border:2px solid var(--border);border-radius:var(--radius-m);padding:12px 14px;font-size:14.5px;font-weight:500;cursor:pointer;background:var(--surface);width:100%;text-align:left}.alt-option .letter{width:26px;height:26px;border-radius:50%;background:var(--surface-sunken);color:var(--ink-soft);display:flex;align-items:center;justify-content:center;font-weight:700;font-size:13px;flex-shrink:0}.alt-option.picked{border-color:var(--primary);background:var(--primary-tint)}.alt-option.picked .letter{background:var(--primary);color:#fff}.alt-option.correct{border-color:var(--mint);background:var(--mint-tint)}.alt-option.correct .letter{background:var(--mint);color:#fff}.alt-option.incorrect{border-color:var(--red);background:var(--red-tint)}.alt-option.incorrect .letter{background:var(--red);color:#fff}.reveal-btn-wrap{margin-top:20px}.explanation-box{margin-top:18px;background:var(--surface-alt);border-radius:var(--radius-m);padding:16px;border:1px solid var(--border)}.explanation-box .et{font-size:12.5px;font-weight:700;color:var(--primary);text-transform:uppercase;letter-spacing:.04em;margin-bottom:6px}.explanation-box p{font-size:14px;line-height:1.6;color:var(--ink-soft)}.explanation-box p.ref{margin-top:8px;font-size:12.5px;color:var(--ink-faint)}.rating-row{display:grid;grid-template-columns:repeat(4,1fr);gap:8px;margin-top:20px}.rating-btn{display:flex;flex-direction:column;align-items:center;gap:4px;border:none;border-radius:var(--radius-m);padding:12px 4px;cursor:pointer;font-family:var(--font-body)}.rating-btn .rl{font-weight:700;font-size:13px}.rating-btn .rn{font-size:10.5px;opacity:.85}.rating-btn.again{background:var(--red-tint);color:var(--red)}.rating-btn.hard{background:var(--amber-tint);color:#9a6a0c}:root[data-theme=dark] .rating-btn.hard,:root:not([data-theme=light]) .rating-btn.hard{color:var(--amber)}.rating-btn.good{background:var(--mint-tint);color:var(--mint)}.rating-btn.easy{background:var(--primary-tint);color:var(--primary-dark)}.rating-btn:active{transform:scale(.95)}.session-empty{text-align:center;padding:50px 20px}.session-empty .big-emoji{font-size:56px;margin-bottom:14px}.result-hero{text-align:center;padding:28px 20px 8px}.result-hero .big-emoji{font-size:62px}.result-hero h2{font-size:24px;margin-top:10px}.result-hero p{color:var(--ink-soft);font-size:14.5px;margin-top:6px}.stat-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:10px;margin-top:22px}.stat-box{background:var(--surface);border:1px solid var(--border);border-radius:var(--radius-m);padding:16px 8px;text-align:center}.stat-box .sv{font-family:var(--font-display);font-size:24px;font-weight:700}.stat-box .sl{font-size:11px;color:var(--ink-faint);margin-top:3px}.stat-box.mint .sv{color:var(--mint)}.stat-box.coral .sv{color:var(--coral)}.stat-box.primary .sv{color:var(--primary)}.upcoming-row{display:flex;justify-content:space-between;align-items:center;padding:12px 0;border-bottom:1px solid var(--border);font-size:13.5px}.upcoming-row:last-child{border-bottom:none}.timer-badge{display:flex;align-items:center;gap:7px;background:var(--ink);color:var(--bg);font-family:var(--font-display);font-weight:700;font-size:16px;padding:9px 16px;border-radius:var(--radius-pill)}:root[data-theme=dark] .timer-badge,:root:not([data-theme=light]) .timer-badge{background:var(--primary);color:#fff}.timer-badge.low{background:var(--red);color:#fff}.qnav-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(38px,1fr));gap:8px;margin:16px 0 4px}.qnav-dot{width:100%;aspect-ratio:1;border-radius:10px;border:2px solid var(--border);background:var(--surface);display:flex;align-items:center;justify-content:center;font-size:12.5px;font-weight:700;color:var(--ink-soft);cursor:pointer}.qnav-dot.answered{background:var(--primary-tint);border-color:var(--primary);color:var(--primary-dark)}.qnav-dot.current{border-color:var(--coral);border-width:3px}.setup-field{margin-bottom:20px}.setup-field label{font-size:13.5px;font-weight:700;color:var(--ink-soft);display:block;margin-bottom:8px}.pill-choice-row{display:flex;gap:8px;flex-wrap:wrap}.pill-choice{border:2px solid var(--border);background:var(--surface);border-radius:var(--radius-pill);padding:10px 18px;font-weight:700;font-size:13.5px;cursor:pointer;color:var(--ink-soft)}.pill-choice.selected{border-color:var(--coral);background:var(--coral-tint);color:var(--coral)}.native-select{width:100%;padding:13px 14px;border-radius:var(--radius-m);border:2px solid 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(orientation:landscape){:root{--nav-h:48px}.app-shell{--topbar-h:52px}.brand-mark{width:32px;height:32px;font-size:16px}.avatar-btn{width:32px;height:32px}.stat-pill{padding-top:4px;padding-bottom:4px}}@media (max-height:500px) and (orientation:landscape) and (max-width:899px){.nav-item{flex-direction:row;gap:6px}.nav-item .nav-icon{font-size:17px}.nav-item.active .nav-icon{transform:none}}