/* Soar Mate · estilos. La misma forma de Soar (tarjetas, botones grandes, letra Poppins), con los colores de Soar Mate. */
@font-face{font-family:"Poppins";font-weight:500;src:url(../fonts/poppins-latin-500-normal.woff2) format("woff2");font-display:swap}
@font-face{font-family:"Poppins";font-weight:600;src:url(../fonts/poppins-latin-600-normal.woff2) format("woff2");font-display:swap}
@font-face{font-family:"Poppins";font-weight:700;src:url(../fonts/poppins-latin-700-normal.woff2) format("woff2");font-display:swap}
:root{
  --p:#0F766E; --p-dark:#0B4F4A; --p-soft:#E3F4F1; --oro:#E7A913; --oro-soft:#FDF3D7;
  --fondo:#F6FAF9; --borde:#DDE9E6; --tinta:#16302D; --gris:#5F7471;
  --verde:#1F8A5B; --verde-soft:#E3F5EC; --rojo:#C2413B; --rojo-soft:#FBE7E6; --ambar:#9A6700; --ambar-soft:#FFF4D6;
  --r:18px; --disp:"Poppins","Avenir Next","Segoe UI Semibold",Arial,sans-serif;
  --body:-apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,"Helvetica Neue",Arial,sans-serif;
}
html.grande{font-size:118%}
*{box-sizing:border-box;-webkit-tap-highlight-color:transparent}
html,body{margin:0;padding:0}
body{background:var(--fondo);color:var(--tinta);font:400 16px/1.5 var(--body);-webkit-font-smoothing:antialiased}
html.grande body{font-size:19px}
button{font:inherit;color:inherit;cursor:pointer}
[hidden]{display:none!important}
h1,h2,h3{font-family:var(--disp);line-height:1.25}
h2{font-size:1.2em;margin:.8em 0 .4em} h3{font-size:1.02em;margin:.9em 0 .35em}
p{margin:.45em 0}
.muted{color:var(--gris)} .small{font-size:.86em} .centro{text-align:center} .grande{font-size:1.1em}
#shell{max-width:560px;margin:0 auto;min-height:100vh;padding-bottom:calc(84px + env(safe-area-inset-bottom))}
main{padding:6px 14px 20px;outline:0}

/* barra superior y menú */
.topbar{background:var(--p);color:#fff;padding:calc(12px + env(safe-area-inset-top)) 16px 12px;position:sticky;top:0;z-index:20;display:flex;align-items:center;justify-content:space-between;box-shadow:0 2px 10px rgba(0,0,0,.14)}
.brand{display:flex;align-items:center;gap:10px;color:#fff;text-decoration:none}
.brand-mark{width:40px;height:40px;border-radius:12px;background:#fff;color:var(--p);display:flex;align-items:center;justify-content:center;font:700 17px var(--disp);border:2px solid var(--oro)}
.brand-text{display:flex;flex-direction:column;line-height:1.15}
.brand-text b{font:700 19px var(--disp)} .brand-text small{font-size:10.5px;letter-spacing:.08em;text-transform:uppercase;opacity:.88}
.racha{background:rgba(255,255,255,.16);border-radius:999px;padding:5px 12px;font-weight:700;font-size:14px}
.bottomnav{position:fixed;bottom:0;left:0;right:0;z-index:30;background:#fff;border-top:1px solid var(--borde);display:flex;max-width:560px;margin:0 auto;padding:6px 6px calc(6px + env(safe-area-inset-bottom))}
.nav-item{flex:1;display:flex;flex-direction:column;align-items:center;gap:1px;padding:6px 2px;background:none;border:0;font-size:11px;font-weight:700;color:#7C8E8B}
.nav-item span{font-size:20px;filter:grayscale(.7);opacity:.8}
.nav-item.active{color:var(--p)} .nav-item.active span{filter:none;opacity:1}
body.en-actividad .bottomnav{display:none}
body.en-actividad #shell{padding-bottom:24px}

/* tarjetas y botones */
.card{background:#fff;border-radius:var(--r);box-shadow:0 1px 3px rgba(22,48,45,.07),0 6px 18px rgba(22,48,45,.05);padding:16px;margin:12px 0}
.kick{display:block;font:700 11px var(--disp);letter-spacing:.07em;text-transform:uppercase;color:var(--p)}
.btn{border:0;border-radius:14px;font:700 15px var(--body);padding:13px 18px;display:inline-flex;align-items:center;justify-content:center;gap:8px;background:var(--p);color:#fff;min-height:50px;margin:6px 0}
.btn:active{filter:brightness(.92)} .btn.block{display:flex;width:100%}
.btn.ghost{background:var(--p-soft);color:var(--p-dark)} .btn.line{background:#fff;color:var(--p-dark);border:1.5px solid var(--p)}
.chip{border:1.5px solid var(--borde);background:#fff;border-radius:999px;padding:6px 13px;font-size:13px;font-weight:600;margin-top:8px}
.row{display:flex;gap:10px;align-items:center}
.atras{background:none;border:0;color:var(--p);font-weight:700;padding:10px 0 0;font-size:15px}
.hola{padding:8px 2px 2px}
.toast{position:fixed;left:50%;bottom:calc(92px + env(safe-area-inset-bottom));transform:translateX(-50%) translateY(20px);background:var(--tinta);color:#fff;padding:11px 18px;border-radius:999px;font-size:13px;opacity:0;pointer-events:none;transition:.25s;max-width:90vw;text-align:center;z-index:60}
.toast.on{opacity:1;transform:translateX(-50%)}
.campo{width:100%;font:inherit;padding:12px 14px;border:1.5px solid var(--borde);border-radius:12px;margin-top:4px}

/* cursos y unidades */
.curso-card,.unidad-card{display:flex;gap:14px;align-items:center;width:100%;text-align:left;background:#fff;border:0;border-radius:var(--r);padding:14px;margin:12px 0;box-shadow:0 1px 3px rgba(22,48,45,.07),0 6px 18px rgba(22,48,45,.05)}
.curso-card{border-left:7px solid var(--c)}
.curso-num{width:54px;height:54px;flex-shrink:0;border-radius:14px;background:var(--c);color:#fff;font:700 22px var(--disp);display:flex;align-items:center;justify-content:center}
.curso-t{font:700 1.1em var(--disp)} .curso-tx .kick{color:var(--c)}
.pronto{opacity:.62}
.unidad-card .un-e{font-size:28px;width:40px;text-align:center}
.un-tx{flex:1;display:flex;flex-direction:column} .un-t{font-weight:700} .un-flecha{font-size:26px;color:var(--p)}
.cabeza h2{margin-top:4px}

/* mapa de pasos */
.pasos{display:flex;flex-direction:column;gap:8px;margin:12px 0}
.paso{display:flex;align-items:center;gap:10px;width:100%;text-align:left;background:#fff;border:1.5px solid var(--borde);border-radius:14px;padding:10px 12px}
.paso-n{width:30px;height:30px;border-radius:50%;background:var(--p-soft);color:var(--p-dark);font-weight:700;display:flex;align-items:center;justify-content:center;flex-shrink:0;font-size:14px}
.paso-i{font-size:22px} .paso-t{flex:1;display:flex;flex-direction:column;min-width:0} .paso-tt{font-weight:600;font-size:.95em}
.paso.listo .paso-n{background:var(--verde);color:#fff}
.paso.ahora{border-color:var(--p);box-shadow:0 0 0 3px var(--p-soft)}
.barra{height:8px;background:var(--p-soft);border-radius:99px;overflow:hidden;margin-top:6px} .barra.grande{height:12px;margin-top:12px}
.barra-llena{height:100%;background:var(--p);border-radius:99px;transition:width .3s;width:0}

/* textos de las lecciones */
.texto p{margin:.6em 0}
.nota{background:var(--oro-soft);border-left:4px solid var(--oro);border-radius:10px;padding:10px 12px;margin:12px 0;font-size:.95em}
.tabla-caja{overflow-x:auto;margin:10px 0}
.tabla{border-collapse:collapse;width:100%;font-size:.92em}
.tabla th{background:var(--p-soft);text-align:left;padding:8px;font-weight:700}
.tabla td{border-top:1px solid var(--borde);padding:8px;vertical-align:middle}
.ejemplo{border-top:1px solid var(--borde);padding:10px 0} .ejemplo:first-of-type{border-top:0}
.ej-a{font-weight:600} .ej-b{color:var(--p-dark)}
.error-c{border-top:1px solid var(--borde);padding:10px 0}
.error-c .mal{color:var(--rojo);text-decoration:line-through;text-decoration-thickness:1px} .error-c .bien{color:var(--verde);font-weight:600}
.cuaderno{background:#FFFDF6;background-image:repeating-linear-gradient(#FFFDF6 0 27px,#E3EAF5 27px 28px)}
.dic-t{display:flex;align-items:center;gap:10px;font:700 1.05em var(--disp);margin-bottom:6px}
.dic-s{width:34px;height:34px;border-radius:10px;background:var(--p);color:#fff;display:flex;align-items:center;justify-content:center;font-size:20px}
.dic-w{display:flex;justify-content:space-between;gap:10px;border-top:1px solid var(--borde);padding:7px 0;font-size:.95em}
.numeros{display:grid;grid-template-columns:repeat(5,1fr);gap:8px;margin-top:10px}
.puedo{display:flex;gap:12px;align-items:flex-start;padding:10px 0;border-top:1px solid var(--borde)} .puedo:first-child{border-top:0}
.puedo input{width:22px;height:22px;flex-shrink:0;accent-color:var(--p);margin-top:2px}
.listo-card{border:2px solid var(--verde)}
.lista-av{margin:8px 0 0;padding-left:20px} .lista-av li{margin:3px 0}

/* ejercicios */
.serie-top{display:flex;align-items:center;gap:12px;padding:12px 0 4px;position:sticky;top:64px;background:var(--fondo);z-index:5}
.x{width:38px;height:38px;border-radius:50%;border:1.5px solid var(--borde);background:#fff;font-size:16px;flex-shrink:0}
.serie-t{font-weight:700;font-size:.9em;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.preg{font-size:1.08em;font-weight:600;margin-bottom:12px}
.pista{background:var(--oro-soft);border-radius:10px;padding:8px 12px;margin-top:8px;font-size:.92em}
.opts{display:flex;flex-direction:column;gap:9px;margin-top:12px}
.opt{border:1.5px solid var(--borde);background:#fff;border-radius:14px;padding:12px 14px;font-weight:600;font-size:1.05em;min-height:54px;text-align:center}
.opt:active{background:var(--p-soft)} .opt.ok{border-color:var(--verde);background:var(--verde-soft)} .opt.mal{border-color:var(--rojo);background:var(--rojo-soft)} .opt.sel{border-color:var(--p);background:var(--p-soft)}
.opt:disabled{color:inherit;opacity:1}
.fb{margin-top:12px;border-radius:14px} .fb:empty{display:none}
.fb.ok,.fb.mal,.fb.aviso{padding:12px 14px}
.fb.ok{background:var(--verde-soft);color:#14583B} .fb.mal{background:var(--rojo-soft);color:#7E2420} .fb.aviso{background:var(--ambar-soft);color:var(--ambar)}
.fb b{display:block;margin-bottom:3px} .fb-bien{margin:4px 0;font-weight:600} .fb-por{font-size:.95em}
.acciones{margin-top:4px}
.resultado{text-align:center;border:3px solid var(--verde)} .resultado.no{border-color:var(--oro)}
.res-num{font:700 2.4em var(--disp);color:var(--p-dark)} .res-t{font:700 1.15em var(--disp)}
.repaso .fb-bien{color:var(--verde)}

/* teclado de mate */
.tk-caja{margin-top:8px}
.tk-arriba{border:2px solid var(--p);border-radius:14px;padding:10px 12px;background:#fff;min-height:74px}
.tk-pantalla{font:600 1.35em/1.4 var(--disp);min-height:1.5em;word-break:break-all;letter-spacing:.02em}
.tk-pantalla i{font-family:Georgia,"Times New Roman",serif;font-size:1.08em}
.tk-pantalla sup{font-size:.65em}
.tk-gorro{color:#B9C8C5;font-size:.7em;vertical-align:super}
.tk-ph{color:#9AABA8;font:400 .7em var(--body)}
.tk-cur{display:inline-block;width:2px;height:1.1em;background:var(--p);vertical-align:-.15em;margin:0 1px;animation:parpadeo 1s steps(1) infinite}
@keyframes parpadeo{50%{opacity:0}}
.tk-vista{min-height:1.6em;margin-top:6px;font-size:1.15em}
.tk-teclas{display:grid;grid-template-columns:repeat(5,1fr);gap:7px;margin-top:10px}
.tk-teclas.num{grid-template-columns:repeat(4,1fr)}
.tk{min-height:50px;border-radius:12px;border:0;background:#fff;box-shadow:0 1px 0 #C9D7D4,0 0 0 1px var(--borde) inset;font:700 1.2em var(--disp)}
.tk:active{background:var(--p-soft);transform:translateY(1px)}
.tk.op{background:var(--p-soft);color:var(--p-dark)} .tk.var{background:var(--p);color:#fff;font-family:Georgia,serif;font-style:italic}
.tk.f{background:#EEF3F2;color:var(--gris);font-size:1.05em} .tk.chica{font:700 .7em var(--body)} .tk.vacia{background:none;box-shadow:none}
.bloq .tk-teclas{opacity:.35;pointer-events:none} .bloq .tk-arriba{border-color:var(--borde)}

/* fichas */
.fi-zona{min-height:60px;border:2px dashed var(--p);border-radius:14px;padding:8px;display:flex;flex-wrap:wrap;gap:6px;align-items:center;background:#fff}
.fi-banco{display:flex;flex-wrap:wrap;gap:8px}
.fi{min-width:46px;min-height:46px;border-radius:12px;border:0;background:var(--p-soft);color:var(--p-dark);font:700 1.2em var(--disp);padding:0 10px;box-shadow:0 2px 0 #BFDCD7}
.fi.puesta{background:var(--p);color:#fff;box-shadow:none}

/* MATE DIBUJADA (también en el PDF) */
.mate{font-family:"Cambria Math","STIX Two Math",Cambria,Georgia,"Times New Roman",serif;font-size:1.12em;white-space:nowrap;display:inline-flex;align-items:center;vertical-align:middle;line-height:1.2}
.mate .mv{font-style:italic;padding:0 .04em}
.mate .mo{padding:0 .22em} .mate .mneg{padding:0 .08em 0 0}
.mate .mexp{font-size:.68em;align-self:flex-start;margin-left:.04em;line-height:1}
.mate .mp{font-size:1.06em}
.mate .mfrac{display:inline-flex;flex-direction:column;align-items:center;vertical-align:middle;margin:0 .12em;font-size:.92em}
.mate .mnum{border-bottom:1.4px solid currentColor;padding:0 .2em .06em;display:inline-flex;align-items:center}
.mate .mden{padding:.06em .2em 0;display:inline-flex;align-items:center}
.mate.mal{font-family:inherit;color:var(--rojo)}
.opt .mate{font-size:1.2em}