:root{--navy-900:#071226;--navy-800:#0b1a33;--navy-700:#13284d;--navy-600:#1e3a6b;--cyan-500:#06b6d4;--cyan-400:#22d3ee;--cyan-100:#cffafe;--cyan-050:#ecfeff;--plata-500:#8a96a8;--plata-300:#c7d0dc;--plata-200:#dde3ec;--plata-100:#eef1f6;--bg:#f4f6fa;--ink:#0b1a33;--muted:#5b6678;--ok:#0f9f6e;--ok-bg:#e7f8f1;--ko:#d64545;--ko-bg:#fdecec;--warn:#b7791f;--radius:16px;--shadow:0 1px 2px #0b1a330f, 0 8px 24px #0b1a330f;color:var(--ink);background:var(--bg);-webkit-font-smoothing:antialiased;-webkit-text-size-adjust:100%;font-family:Inter,ui-sans-serif,system-ui,-apple-system,Segoe UI,sans-serif;line-height:1.5}*{box-sizing:border-box}html,body{background:var(--bg);margin:0;overflow-x:hidden}button,input,select{font:inherit;color:inherit}a{color:var(--navy-600)}h1,h2,h3,h4,.h1,.big{letter-spacing:-.01em;font-family:Fraunces,Georgia,serif;font-weight:700;line-height:1.2}h2{margin:0;font-size:1.25rem}h3{margin:.4rem 0;font-size:1.1rem}h4{margin:.8rem 0 .3rem;font-size:.95rem}.h1{margin:.2rem 0 .4rem;font-size:clamp(1.35rem,5vw,1.8rem)}code{background:var(--plata-100);border-radius:4px;padding:0 .3em;font-size:.85em}.sr-only{clip:rect(0 0 0 0);width:1px;height:1px;position:absolute;overflow:hidden}.muted{color:var(--muted)}.small{font-size:.85rem}.center{text-align:center}.row{align-items:center;display:flex}.row.center{justify-content:center}.row.between{justify-content:space-between}.wrap{flex-wrap:wrap}.gap{gap:.5rem}.stack{gap:14px;display:grid}.grid2{grid-template-columns:1fr;gap:14px;display:grid}.grid2.tight{gap:0 20px}@media (width>=760px){.grid2{grid-template-columns:1fr 1fr}}.app{min-height:100dvh}.topbar{z-index:30;padding:10px 16px;padding-top:max(10px, env(safe-area-inset-top));background:var(--navy-800);color:#fff;border-bottom:1px solid var(--navy-700);align-items:center;gap:12px;display:flex;position:sticky;top:0}.brand{color:#fff;align-items:center;gap:8px;font-family:Fraunces,Georgia,serif;font-size:1.25rem;font-weight:500;text-decoration:none;display:flex}.brand b{color:var(--cyan-400);font-weight:700}.brand-mark{color:var(--cyan-400);font-size:1.3rem}.topnav{gap:4px;margin-left:12px;display:none}.topnav a{color:var(--plata-300);border-radius:999px;padding:6px 12px;font-size:.92rem;font-weight:600;text-decoration:none}.topnav a.on{background:var(--navy-700);color:#fff;box-shadow:inset 0 -2px 0 var(--cyan-400)}.alumno{margin-left:auto}.alumno select{background:var(--navy-700);color:#fff;border:1px solid var(--navy-600);border-radius:999px;max-width:150px;padding:6px 10px}.main{width:min(980px,100%);margin:0 auto;padding:16px 16px 120px}.foot{text-align:center;margin-top:24px}.bottomnav{z-index:30;background:var(--navy-800);border-top:1px solid var(--navy-700);padding-bottom:env(safe-area-inset-bottom);grid-template-columns:repeat(5,1fr);display:grid;position:fixed;bottom:0;left:0;right:0}.bottomnav a{color:var(--plata-300);flex-direction:column;align-items:center;gap:2px;padding:8px 0 9px;font-size:.72rem;font-weight:600;text-decoration:none;display:flex;position:relative}.bottomnav a span{font-size:1.15rem;line-height:1}.bottomnav a.on{color:var(--cyan-400)}.badge{background:var(--cyan-400);min-width:18px;color:var(--navy-900);text-align:center;border-radius:999px;margin-left:4px;padding:0 5px;font-size:.7rem;font-style:normal;font-weight:800;line-height:18px;display:inline-block}.bottomnav .badge{margin:0;position:absolute;top:4px;left:calc(50% + 6px)}@media (width>=760px){.topnav{display:flex}.bottomnav{display:none}.main{padding-bottom:60px}}.panel{border:1px solid var(--plata-200);border-radius:var(--radius);box-shadow:var(--shadow);background:#fff;min-width:0;padding:16px}.panel.error{border-color:var(--ko);color:var(--ko)}.eyebrow{letter-spacing:.08em;text-transform:uppercase;color:var(--cyan-500);margin:0;font-size:.72rem;font-weight:800}.hero{border-radius:var(--radius);color:#fff;background:radial-gradient(120% 140% at 100% 0%, var(--navy-600) 0%, var(--navy-800) 55%, var(--navy-900) 100%);box-shadow:var(--shadow);padding:22px 18px}.hero h1{margin:.3rem 0;font-size:clamp(1.4rem,6vw,2.1rem)}.hero .eyebrow{color:var(--cyan-400)}.hero-sub{color:var(--plata-300);margin:0 0 .8rem}.chips{flex-wrap:wrap;gap:6px;display:flex}.chip{background:var(--plata-100);color:var(--navy-700);border:1px solid var(--plata-200);white-space:nowrap;border-radius:999px;align-items:center;padding:2px 9px;font-size:.74rem;font-weight:700;display:inline-flex}.hero .chip{color:#fff;background:#ffffff14;border-color:#ffffff2e}.chip.cyan,.hero .chip.cyan{background:var(--cyan-050);color:#0e7490;border-color:var(--cyan-100)}.chip.dim{color:var(--plata-500);background:#fff}.chip.estado-en-curso{color:var(--warn);background:#fff7e6;border-color:#f5e0b8}.chip.estado-estudiado{background:var(--ok-bg);color:var(--ok);border-color:#c4eedd}.chip.estado-dominado{background:var(--navy-800);color:var(--cyan-400);border-color:var(--navy-800)}.chip.tipo-memorizar{color:#6941c6;background:#f3eefe;border-color:#e4d8fd}.big{margin:.2rem 0;font-size:2.6rem}.big small{color:var(--muted);font-size:1.2rem}.bar{background:var(--plata-100);border-radius:999px;height:10px;margin:6px 0 8px;overflow:hidden}.bar.thin{height:6px}.bar span{border-radius:inherit;background:linear-gradient(90deg, var(--cyan-500), var(--cyan-400));height:100%;transition:width .3s;display:block}.bloques{gap:8px;margin-top:10px;display:grid}.bloque-row{grid-template-columns:1fr 70px 42px;align-items:center;gap:8px;font-size:.85rem;display:grid}.bloque-row b{text-align:right}.bloque-row .bar{margin:0}.pill{background:var(--navy-800);color:var(--cyan-400);border-radius:999px;margin:2px 4px 2px 0;padding:2px 10px;font-family:Inter,sans-serif;font-size:.9rem;font-weight:700;text-decoration:none;display:inline-block}.btn{border:1px solid var(--plata-300);min-height:42px;color:var(--navy-800);cursor:pointer;background:#fff;border-radius:12px;justify-content:center;align-items:center;padding:0 16px;font-weight:700;text-decoration:none;display:inline-flex}.btn.small{min-height:34px;padding:0 12px;font-size:.85rem}.btn.primary{background:var(--navy-800);color:#fff;border-color:var(--navy-800)}.btn.good{background:var(--ok);border-color:var(--ok);color:#fff;min-width:130px}.btn.bad{border-color:var(--ko);color:var(--ko);background:#fff;min-width:130px}.link{color:var(--navy-600);cursor:pointer;background:0 0;border:0;padding:4px 0;font-weight:700;text-decoration:none}.timeline{gap:10px;margin:12px 0;padding:0;list-style:none;display:grid}.timeline li{border-left:3px solid var(--cyan-400);grid-template-columns:96px 1fr;gap:10px;padding-left:10px;display:grid}.timeline li.tbd{border-left-color:var(--plata-300)}.timeline time{color:var(--navy-600);font-size:.85rem;font-weight:700}.timeline p{margin:2px 0}.timeline a{word-break:break-all;font-size:.85rem}.plain{gap:6px;margin:0;padding:0;list-style:none;display:grid}.notas{margin-top:12px;padding-left:18px}.seg{scrollbar-width:none;gap:6px;padding:4px 0 2px;display:flex;overflow-x:auto}.seg button{border:1px solid var(--plata-200);color:var(--muted);cursor:pointer;background:#fff;border-radius:999px;flex:none;padding:6px 12px;font-size:.82rem;font-weight:700}.seg button.on{background:var(--navy-800);color:#fff;border-color:var(--navy-800)}.bloque-head{flex-wrap:wrap;justify-content:space-between;align-items:baseline;gap:8px;display:flex}.temas{margin:8px 0 0;padding:0;list-style:none}.temas li+li{border-top:1px solid var(--plata-100)}.tema-row{color:inherit;grid-template-columns:36px 1fr 14px;align-items:center;gap:10px;padding:10px 0;text-decoration:none;display:grid}.tema-row .num{background:var(--navy-800);width:36px;height:36px;color:var(--cyan-400);border-radius:10px;place-items:center;font-size:.9rem;font-weight:800;display:grid}.tema-txt{gap:5px;min-width:0;display:grid}.tema-txt b{font-size:.92rem;font-weight:600;line-height:1.35}.chev{color:var(--plata-500);font-size:1.4rem}.epigrafes summary{cursor:pointer;color:var(--navy-600);font-size:.85rem;font-weight:600}.estado-sel{margin-top:10px}.estado-sel label{align-items:center;gap:6px;display:flex}select,input[type=date],input[type=number]{border:1px solid var(--plata-300);background:#fff;border-radius:10px;max-width:100%;padding:7px 10px}.tabs{background:var(--plata-100);z-index:5;border-radius:14px;grid-template-columns:repeat(3,1fr);gap:4px;padding:4px;display:grid;position:sticky;top:58px}.tabs a{text-align:center;color:var(--muted);border-radius:10px;padding:9px 4px;font-size:.9rem;font-weight:700;text-decoration:none}.tabs a.on{color:var(--navy-800);box-shadow:var(--shadow);background:#fff}.md{overflow-wrap:anywhere;font-size:1rem;line-height:1.65}.md h1{margin-top:0;font-size:1.5rem}.md h2{border-top:1px solid var(--plata-100);margin:1.4rem 0 .5rem;padding-top:.8rem;font-size:1.2rem}.md h3{font-size:1.02rem}.md table{border-collapse:collapse;width:100%;font-size:.86rem;display:block;overflow-x:auto}.md th,.md td{border:1px solid var(--plata-200);text-align:left;vertical-align:top;padding:6px 8px}.md th{background:var(--plata-100)}.md blockquote{border-left:4px solid var(--cyan-400);background:var(--cyan-050);border-radius:0 10px 10px 0;margin:1rem 0;padding:8px 14px}.md ul,.md ol{padding-left:1.3rem}.flashcard{border:1px solid var(--plata-200);cursor:pointer;text-align:center;background:linear-gradient(160deg, #fff, var(--plata-100));border-radius:18px;place-items:center;gap:10px;width:100%;min-height:220px;margin:14px 0;padding:24px 18px;display:grid}.flashcard.back{background:linear-gradient(160deg, var(--navy-800), var(--navy-700));color:#fff;border-color:var(--navy-700)}.fc-side{letter-spacing:.1em;text-transform:uppercase;color:var(--cyan-500);font-size:.7rem;font-weight:800}.flashcard.back .fc-side{color:var(--cyan-400)}.fc-text{font-size:1.12rem;font-weight:600;line-height:1.45}.fc-ref{color:var(--plata-300);font-size:.78rem}.fc-hint{color:var(--plata-500);font-size:.75rem}.pregunta{margin-top:12px}.enunciado{font-family:Inter,sans-serif;font-size:1.04rem;font-weight:700;line-height:1.45}.opciones{gap:8px;margin:12px 0;padding:0;list-style:none;display:grid}.opcion{text-align:left;border:1px solid var(--plata-300);cursor:pointer;background:#fff;border-radius:12px;grid-template-columns:30px 1fr;align-items:start;gap:10px;width:100%;padding:11px 12px;line-height:1.4;display:grid}.opcion:disabled{cursor:default}.opcion .letra{background:var(--plata-100);border-radius:8px;place-items:center;width:28px;height:28px;font-size:.85rem;font-weight:800;display:grid}.opcion.ok{border-color:var(--ok);background:var(--ok-bg)}.opcion.ok .letra{background:var(--ok);color:#fff}.opcion.ko{border-color:var(--ko);background:var(--ko-bg)}.opcion.ko .letra{background:var(--ko);color:#fff}.opcion.dim{opacity:.6}.explicacion{border-radius:12px;margin-bottom:12px;padding:12px 14px;font-size:.94rem}.explicacion.ok{background:var(--ok-bg)}.explicacion.ko{background:var(--ko-bg)}.explicacion .ref{color:var(--muted);margin-top:6px;font-size:.8rem}.field{color:var(--muted);gap:4px;font-size:.85rem;font-weight:600;display:grid}.kpis{grid-template-columns:repeat(auto-fit,minmax(110px,1fr));gap:10px;margin:10px 0;display:grid}.kpis div{background:var(--plata-100);border-radius:12px;padding:10px;display:grid}.kpis b{color:var(--navy-800);font-family:Fraunces,Georgia,serif;font-size:1.6rem}.kpis span{color:var(--muted);font-size:.78rem}.plan-dias{gap:8px;margin:8px 0;padding:0;list-style:none;display:grid}.plan-dias li{border:1px solid var(--plata-100);border-radius:12px;grid-template-columns:92px 1fr;gap:10px;padding:8px 10px;display:grid}.plan-dias li.hoy{border-color:var(--cyan-400);background:var(--cyan-050)}.plan-dias time{color:var(--navy-600);font-size:.85rem;font-weight:700}.plan-tema{color:inherit;padding:2px 0;font-size:.88rem;line-height:1.35;text-decoration:none;display:block}.plan-tema b{color:var(--navy-600)}.plan-tema.tipo-memorizar b{color:#6941c6}.semana{text-align:center;grid-template-columns:repeat(7,1fr);gap:4px;display:grid}.semana div{background:var(--plata-100);color:var(--muted);border-radius:10px;padding:6px 0;font-size:.72rem;display:grid}.semana b{color:var(--navy-800);font-size:1rem}.pomodoro-panel{text-align:center;transition:background .4s}.pomodoro-panel.fase-work{background:linear-gradient(180deg, var(--cyan-050), #fff)}.pomodoro-panel.fase-break,.pomodoro-panel.fase-long{background:linear-gradient(180deg, var(--ok-bg), #fff)}.pomo-head{text-align:left;justify-content:space-between;align-items:flex-start;display:flex}.pomodoro-clock{color:var(--navy-800);font-variant-numeric:tabular-nums;margin:10px 0;font-family:Fraunces,Georgia,serif;font-size:clamp(3.2rem,17vw,5.4rem);font-weight:700;line-height:1}.pomodoro-dots{justify-content:center;gap:10px;display:flex}.pomodoro-dots span{background:var(--plata-200);border-radius:999px;width:14px;height:14px}.pomodoro-dots span.done{background:var(--cyan-500)}.pomodoro-settings{text-align:left;grid-template-columns:repeat(2,minmax(0,1fr));gap:12px;margin-top:12px;display:grid}.pomodoro-settings label{color:var(--muted);gap:6px;font-size:.82rem;font-weight:600;display:grid}@media (width<=390px){.pomodoro-settings{grid-template-columns:1fr}}.pomo-fab{right:16px;bottom:calc(76px + env(safe-area-inset-bottom));z-index:40;background:var(--cyan-400);width:54px;height:54px;color:var(--navy-900);cursor:pointer;border:0;border-radius:50%;place-items:center;font-size:1.5rem;display:grid;position:fixed;box-shadow:0 12px 28px #06b6d473}@media (width>=760px){.pomo-fab{bottom:20px}}.pomo-fab.hidden{display:none}.pomo-fab.running{animation:1.8s ease-in-out infinite pomo-pulse}@keyframes pomo-pulse{0%,to{box-shadow:0 12px 28px #06b6d473}50%{box-shadow:0 12px 28px #06b6d473,0 0 0 10px #22d3ee2e}}.pomo-overlay{z-index:50;-webkit-backdrop-filter:blur(4px);backdrop-filter:blur(4px);background:#0712268c;justify-content:center;align-items:center;padding:16px;display:none;position:fixed;inset:0}.pomo-overlay.open{display:flex}.pomo-overlay .pomodoro-panel{width:min(440px,100%);max-height:92dvh;overflow-y:auto}.pomo-close{border:1px solid var(--plata-200);cursor:pointer;background:#fff;border-radius:10px;width:34px;height:34px;font-size:1.3rem;line-height:1}.sim-bar{z-index:6;justify-content:space-between;align-items:center;gap:8px;padding:10px 14px;display:flex;position:sticky;top:58px}.sim-reloj{font-variant-numeric:tabular-nums;color:var(--navy-800);font-family:Fraunces,Georgia,serif;font-size:1.4rem;font-weight:700}.sim-reloj.urge{color:var(--ko)}.opcion.sel{border-color:var(--navy-800);background:var(--cyan-050);box-shadow:inset 0 0 0 1px var(--navy-800)}.opcion.sel .letra{background:var(--navy-800);color:var(--cyan-400)}.btn:disabled{opacity:.45;cursor:default}.sim-grid{grid-template-columns:repeat(auto-fill,minmax(38px,1fr));gap:6px;display:grid}.sim-grid button{border:1px solid var(--plata-200);cursor:pointer;background:#fff;border-radius:8px;height:36px;font-size:.8rem;font-weight:700}.sim-grid button.hecha{background:var(--plata-100);color:var(--navy-600)}.sim-grid button.on{border-color:var(--cyan-500);box-shadow:inset 0 0 0 2px var(--cyan-400)}.correccion{gap:10px;padding-left:1.2rem;display:grid}.correccion li{border-radius:10px;padding:8px 10px}.correccion li.ok{background:var(--ok-bg)}.correccion li.ko{background:var(--ko-bg)}.correccion li.blanco{background:var(--plata-100)}.examen-box{background:var(--cyan-050);border:1px solid var(--cyan-100);border-radius:12px;margin:10px 0;padding:10px 12px;font-size:.9rem}.md th,.md td{overflow-wrap:normal;word-break:normal;-webkit-hyphens:auto;hyphens:auto;min-width:88px}