/* b·tutora · cuaderno de laboratorio sobre papel milimetrado; cobalto como acento, amarillo marcador para lo nuevo */
:root{
  --paper:#ECF2EF; --paper-2:#F8FBF9; --paper-3:#DFE9E4; --grid:rgba(16,35,31,.06);
  --ink:#10231F; --ink-soft:#4A5E59; --line:#C6D4CE;
  --cobalt:#2B3BF2; --cobalt-soft:#E1E4FF; --on-cobalt:#FFFFFF; --marker:#FFD23F; --on-marker:#10231F;
  --ok:#11805C; --ok-soft:#D6F0E6; --warn:#A35F00; --warn-soft:#FBEBD0; --bad:#C2352B; --bad-soft:#F9DEDB;
  --a-dis:#2B3BF2; --a-pro:#B4410F; --a-tut:#11805C; --a-eva:#7A2FC9; --a-acc:#0B6E8C; --a-pla:#9A6B00; --a-neg:#B3245E;
  --display:"Bricolage Grotesque","Arial Narrow",system-ui,sans-serif;
  --body:"Atkinson Hyperlegible","Segoe UI",system-ui,sans-serif;
  --mono:"JetBrains Mono",ui-monospace,Menlo,Consolas,monospace;
  --r:14px;
}
@media (prefers-color-scheme: dark){:root:not([data-theme="light"]){
  --paper:#0D1615; --paper-2:#152120; --paper-3:#1C2B29; --grid:rgba(230,239,236,.045);
  --ink:#E6EFEC; --ink-soft:#9DB1AB; --line:#2C3D3A;
  --cobalt:#8C99FF; --cobalt-soft:#1E2550; --on-cobalt:#0D1615; --marker:#FFD23F; --on-marker:#10231F;
  --ok:#4CC79C; --ok-soft:#123528; --warn:#F2A93B; --warn-soft:#3A2A10; --bad:#FF7A6E; --bad-soft:#3D1A17;
  --a-dis:#8C99FF; --a-pro:#FF9461; --a-tut:#4CC79C; --a-eva:#C49BFF; --a-acc:#55C8E8; --a-pla:#F2C14E; --a-neg:#FF8FB8;
  color-scheme:dark}}
:root[data-theme="dark"]{
  --paper:#0D1615; --paper-2:#152120; --paper-3:#1C2B29; --grid:rgba(230,239,236,.045);
  --ink:#E6EFEC; --ink-soft:#9DB1AB; --line:#2C3D3A;
  --cobalt:#8C99FF; --cobalt-soft:#1E2550; --on-cobalt:#0D1615; --marker:#FFD23F; --on-marker:#10231F;
  --ok:#4CC79C; --ok-soft:#123528; --warn:#F2A93B; --warn-soft:#3A2A10; --bad:#FF7A6E; --bad-soft:#3D1A17;
  --a-dis:#8C99FF; --a-pro:#FF9461; --a-tut:#4CC79C; --a-eva:#C49BFF; --a-acc:#55C8E8; --a-pla:#F2C14E; --a-neg:#FF8FB8;
  color-scheme:dark}

*{box-sizing:border-box}
html{scroll-behavior:smooth}
@media (prefers-reduced-motion: reduce){html{scroll-behavior:auto}*,*::before{animation:none!important;transition:none!important}}
body{background:var(--paper);color:var(--ink);font-family:var(--body);font-size:17px;line-height:1.55;
  background-image:linear-gradient(var(--grid) 1px,transparent 1px),linear-gradient(90deg,var(--grid) 1px,transparent 1px);background-size:24px 24px}
body::before{content:"";position:fixed;inset:0 0 auto;height:env(safe-area-inset-top,0px);z-index:40;background:var(--paper)}
.wrap{max-width:1200px;margin:0 auto;padding-left:max(16px,env(safe-area-inset-left,0px));padding-right:max(16px,env(safe-area-inset-right,0px))}
.narrow{max-width:820px}
h1,h2,h3,h4{font-family:var(--display);text-wrap:balance;margin:0;line-height:1.05;letter-spacing:-.02em}
h1{font-size:clamp(38px,5.6vw,72px);font-weight:800}
h2{font-size:clamp(28px,3.6vw,46px);font-weight:800}
h3{font-size:22px;font-weight:700}
p{margin:0}
a{color:var(--cobalt)}
:focus-visible{outline:3px solid var(--cobalt);outline-offset:3px;border-radius:4px}
.label{font-family:var(--mono);font-size:12px;letter-spacing:.11em;text-transform:uppercase;color:var(--ink-soft)}
.muted{color:var(--ink-soft)}
.mono{font-family:var(--mono)}
.tab{font-variant-numeric:tabular-nums}
mark{background:var(--marker);color:var(--on-marker);padding:0 .15em}
.stack{display:grid;gap:16px}
.row{display:flex;gap:10px;flex-wrap:wrap;align-items:center}

/* cabecera */
.site-head{position:sticky;top:env(safe-area-inset-top,0px);z-index:30;background:color-mix(in srgb,var(--paper) 90%,transparent);backdrop-filter:blur(8px);border-bottom:1px solid var(--line)}
.site-head .wrap{display:flex;align-items:center;gap:18px;padding-block:12px}
.brand{display:flex;align-items:center;gap:10px;font-family:var(--display);font-weight:800;font-size:21px;letter-spacing:-.03em;color:var(--ink);text-decoration:none;white-space:nowrap}
.brand-mark{width:30px;height:30px;flex:none}
.brand b{color:var(--cobalt);font-weight:800}
.site-nav{display:flex;gap:2px;margin-left:auto}
.site-nav a{font-size:15px;color:var(--ink-soft);text-decoration:none;padding:7px 12px;border-radius:999px;white-space:nowrap}
.site-nav a:hover,.site-nav a[aria-current="page"]{color:var(--ink);background:var(--paper-3)}
.site-nav a.sim{color:var(--on-marker);background:var(--marker);font-weight:700}
.site-head .menu-btn{display:none;margin-left:auto}
@media (max-width:1120px){
  .site-head .menu-btn{display:inline-flex}
  .site-nav{display:none;position:absolute;left:0;right:0;top:100%;flex-direction:column;background:var(--paper-2);border-bottom:2px solid var(--ink);padding:10px max(16px,env(safe-area-inset-left,0px));gap:4px}
  .site-nav.open{display:flex}
  .site-nav a{font-size:17px;padding:10px 12px}
}

/* botones y controles */
.btn{font-family:var(--body);font-weight:700;font-size:15px;border:2px solid var(--ink);background:transparent;color:var(--ink);padding:10px 18px;border-radius:999px;cursor:pointer;text-decoration:none;display:inline-flex;align-items:center;justify-content:center;gap:8px;transition:transform .15s,background .15s;line-height:1.2}
.btn:hover{transform:translateY(-2px)}
.btn.primary{background:var(--cobalt);border-color:var(--cobalt);color:var(--on-cobalt)}
.btn.ink{background:var(--ink);color:var(--paper)}
.btn.marker{background:var(--marker);color:var(--on-marker);border-color:var(--ink)}
.btn.small{font-size:13px;padding:6px 12px;border-width:1.5px}
.btn.ghost{border-color:var(--line)}
.btn:disabled{opacity:.45;cursor:not-allowed;transform:none}
.chip{font-family:var(--body);font-size:14px;border:1.5px solid var(--line);background:var(--paper-2);color:var(--ink);padding:7px 13px;border-radius:999px;cursor:pointer;line-height:1.2}
.chip[aria-pressed="true"]{background:var(--ink);color:var(--paper);border-color:var(--ink)}
.chips{display:flex;flex-wrap:wrap;gap:8px}
input[type=text],input[type=number],input[type=date],input[type=search],select,textarea{font-family:var(--body);font-size:16px;color:var(--ink);background:var(--paper);border:1.5px solid var(--line);border-radius:10px;padding:10px 12px;width:100%;min-width:0}
textarea{resize:vertical;line-height:1.5;min-height:120px}
input:focus,select:focus,textarea:focus{outline:none;border-color:var(--cobalt)}
input[type=range]{width:100%;accent-color:var(--cobalt)}
input[type=color]{width:52px;height:42px;border:1.5px solid var(--line);border-radius:10px;background:var(--paper);padding:3px;cursor:pointer}
label.f{display:grid;gap:6px;font-size:14px;color:var(--ink-soft)}
.grid2{display:grid;grid-template-columns:1fr 1fr;gap:12px}
.grid3{display:grid;grid-template-columns:repeat(3,1fr);gap:12px}
@media (max-width:640px){.grid2,.grid3{grid-template-columns:1fr}}

/* tarjetas / paneles */
.panel{background:var(--paper-2);border:1.5px solid var(--line);border-radius:var(--r);padding:20px;min-width:0}
.instrument{background:var(--paper-2);border:2px solid var(--ink);border-radius:18px;padding:22px;box-shadow:7px 7px 0 var(--ink);min-width:0}
.tag{display:inline-flex;align-items:center;gap:6px;font-family:var(--mono);font-size:11px;letter-spacing:.06em;text-transform:uppercase;border-radius:6px;padding:4px 8px;border:1.5px solid currentColor;line-height:1.2;white-space:nowrap}
.tag::before{content:"";width:7px;height:7px;border-radius:50%;background:currentColor}
.a-dis{color:var(--a-dis)}.a-pro{color:var(--a-pro)}.a-tut{color:var(--a-tut)}.a-eva{color:var(--a-eva)}.a-acc{color:var(--a-acc)}.a-pla{color:var(--a-pla)}.a-neg{color:var(--a-neg)}
.toast{position:fixed;left:50%;bottom:calc(20px + env(safe-area-inset-bottom,0px));transform:translateX(-50%);background:var(--ink);color:var(--paper);padding:10px 18px;border-radius:999px;font-weight:700;z-index:50;font-size:15px}

/* tabla */
.tbl-wrap{overflow-x:auto;border:1.5px solid var(--line);border-radius:12px;background:var(--paper-2)}
table{border-collapse:collapse;width:100%;font-size:15px}
th,td{padding:10px 12px;border-bottom:1px solid var(--line);text-align:left;vertical-align:top}
th{font-family:var(--mono);font-size:12px;letter-spacing:.06em;text-transform:uppercase;color:var(--ink-soft);background:var(--paper-3)}
tr:last-child td{border-bottom:0}

/* páginas de recurso */
.res-hero{padding-block:36px 26px}
.crumbs{font-size:14px;color:var(--ink-soft);display:flex;gap:6px;flex-wrap:wrap;margin-bottom:16px}
.crumbs a{color:var(--ink-soft)}
.res-hero .tags{display:flex;gap:8px;flex-wrap:wrap;margin-bottom:14px}
.res-hero p.lede{font-size:19px;color:var(--ink-soft);max-width:62ch;margin-top:14px}
.res-body{display:grid;grid-template-columns:minmax(0,1fr) 300px;gap:28px;align-items:start;padding-bottom:40px}
.res-body > *{min-width:0}
.ficha{position:sticky;top:84px;display:grid;gap:14px;font-size:15px}
.ficha h4{font-size:15px;font-family:var(--mono);letter-spacing:.08em;text-transform:uppercase;color:var(--ink-soft);font-weight:600}
.ficha ul,.ficha ol{margin:0;padding-left:18px;display:grid;gap:4px}
.ficha .sep{border-top:1px solid var(--line)}
@media (max-width:980px){.res-body{grid-template-columns:1fr}.ficha{position:static}}
.related{padding-block:20px 10px}
.related-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:14px;margin-top:14px}
@media (max-width:820px){.related-grid{grid-template-columns:1fr}}

/* tarjeta de catálogo */
.rcard{display:flex;flex-direction:column;gap:10px;background:var(--paper-2);border:2px solid var(--ink);border-radius:16px;padding:18px;text-decoration:none;color:var(--ink);transition:transform .15s,box-shadow .15s;min-width:0}
.rcard:hover{transform:translate(-3px,-3px);box-shadow:6px 6px 0 var(--ink)}
.rcard h3{font-size:23px}
.rcard p{font-size:15px;color:var(--ink-soft);flex:1}
.rcard .foot{display:flex;justify-content:space-between;align-items:center;gap:8px;border-top:1px dashed var(--line);padding-top:10px;font-size:14px}
.rcard .foot b{color:var(--cobalt)}
.rcard .top{display:flex;justify-content:space-between;gap:8px;align-items:center;flex-wrap:wrap}
.type{font-family:var(--mono);font-size:11px;letter-spacing:.08em;text-transform:uppercase;color:var(--ink-soft)}
.new{background:var(--marker);color:var(--on-marker);font-family:var(--mono);font-size:10px;font-weight:600;letter-spacing:.08em;text-transform:uppercase;padding:3px 7px;border-radius:5px}

/* prosa de guías */
.prose{font-size:18px;line-height:1.65}
.prose > * + *{margin-top:16px}
.prose h2{font-size:clamp(26px,3vw,36px);margin-top:44px}
.prose h3{margin-top:28px}
.prose ul,.prose ol{padding-left:22px;display:grid;gap:6px}
.callout{border-left:4px solid var(--cobalt);background:var(--cobalt-soft);padding:14px 18px;border-radius:0 12px 12px 0;font-size:16px}
.callout.warn{border-color:var(--warn);background:var(--warn-soft)}
.toc{display:grid;gap:4px;font-size:15px}
.toc a{color:var(--ink-soft);text-decoration:none}.toc a:hover{color:var(--cobalt)}

/* pie */
.site-foot{margin-top:80px;background:var(--ink);color:var(--paper)}
.site-foot .wrap{padding-block:48px 32px}
.foot-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1fr;gap:28px}
.site-foot h4{font-family:var(--mono);font-size:12px;letter-spacing:.1em;text-transform:uppercase;color:var(--marker);margin-bottom:10px;font-weight:600}
.site-foot a{color:var(--paper);text-decoration:none;opacity:.82;font-size:15px}
.site-foot a:hover{opacity:1;text-decoration:underline}
.site-foot ul{list-style:none;margin:0;padding:0;display:grid;gap:6px}
.site-foot p{color:color-mix(in srgb,var(--paper) 72%,transparent);font-size:14px}
.foot-legal{margin-top:36px;padding-top:18px;border-top:1px solid color-mix(in srgb,var(--paper) 20%,transparent);display:grid;gap:6px}
@media (max-width:820px){.foot-grid{grid-template-columns:1fr 1fr}.foot-grid > :first-child{grid-column:1/-1}}

/* utilidades de herramientas */
.out{background:var(--paper);border:1.5px solid var(--line);border-radius:12px;padding:16px;white-space:pre-wrap;font-size:15px;line-height:1.55;overflow-x:auto}
.out.code{font-family:var(--mono);font-size:13px}
.big{font-family:var(--display);font-weight:800;font-size:clamp(48px,7vw,88px);line-height:.9;color:var(--cobalt);font-variant-numeric:tabular-nums}
.kpis{display:grid;grid-template-columns:repeat(auto-fit,minmax(130px,1fr));border-top:1.5px solid var(--line)}
.kpis div{padding:12px 6px;border-bottom:1.5px solid var(--line)}
.kpis b{display:block;font-family:var(--display);font-size:28px;line-height:1.1;font-variant-numeric:tabular-nums}
.kpis span{font-size:13px;color:var(--ink-soft)}
.pill-ok,.pill-warn,.pill-bad{display:inline-block;font-size:12px;font-weight:700;padding:3px 9px;border-radius:999px}
.pill-ok{background:var(--ok-soft);color:var(--ok)}.pill-warn{background:var(--warn-soft);color:var(--warn)}.pill-bad{background:var(--bad-soft);color:var(--bad)}
.sample-note{font-size:13px;color:var(--ink-soft);display:flex;gap:8px;align-items:center;flex-wrap:wrap}
.sample-note::before{content:"Ejemplo";font-family:var(--mono);font-size:10px;letter-spacing:.08em;text-transform:uppercase;background:var(--marker);color:var(--on-marker);padding:2px 6px;border-radius:4px}

/* ===== b·tutora · capa de impacto ===== */
:root{--logo:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 100 100'%3E%3Crect x='16' y='8' width='16' height='84' rx='8'/%3E%3Ccircle cx='54' cy='62' r='23' fill='none' stroke='%23000' stroke-width='16'/%3E%3Ccircle cx='84' cy='16' r='9'/%3E%3C/svg%3E")}
:root{--b-neg:#FF8FB8;--b-dis:#8C99FF;--b-pro:#FF9461;--b-tut:#4CC79C;--b-eva:#C49BFF;--b-acc:#55C8E8;--b-pla:#F2C14E;--night:#0A1024;--night-2:#141C3A;--on-night:#F2F4FF;--on-night-soft:#AEB6D6}
@media (prefers-color-scheme: dark){:root:not([data-theme="light"]){--night:#05081A;--night-2:#10183A;--on-night:#F2F4FF;--on-night-soft:#AEB6D6}}
:root[data-theme="dark"]{--night:#05081A;--night-2:#10183A;--on-night:#F2F4FF;--on-night-soft:#AEB6D6}
.brand span{font-weight:800;font-size:24px;letter-spacing:-.04em}
.brand-tag{font-family:var(--mono);font-size:10px;letter-spacing:.12em;text-transform:uppercase;color:var(--on-marker);background:var(--marker);padding:3px 6px;border-radius:4px;border:1.5px solid var(--ink);align-self:center}
@media (max-width:420px){.brand-tag{display:none}}
.foot-brand{color:var(--paper)!important;opacity:1!important;font-size:34px!important;gap:6px}
.foot-brand .brand-mark{width:40px;height:40px}

/* banda oscura de cabecera */
.band-hero{position:relative;overflow:hidden;background:var(--night);color:var(--on-night);border-bottom:3px solid var(--ink);
  --a-dis:#8C99FF;--a-pro:#FF9461;--a-tut:#4CC79C;--a-eva:#C49BFF;--a-acc:#55C8E8;--a-pla:#F2C14E;--a-neg:#FF8FB8;--ink-soft:var(--on-night-soft);
  background-image:radial-gradient(rgba(255,255,255,.09) 1px,transparent 1.4px);background-size:22px 22px}
.band-hero::before{content:"";width:clamp(260px,34vw,480px);aspect-ratio:1;--mk:var(--area,var(--cobalt));background:var(--mk,var(--cobalt));-webkit-mask:var(--logo) center/contain no-repeat;mask:var(--logo) center/contain no-repeat;position:absolute;right:max(-30px,calc(50% - 680px));top:50%;transform:translateY(-52%);opacity:.9;pointer-events:none;
  -webkit-mask-image:linear-gradient(100deg,transparent 5%,#000 60%);mask-image:linear-gradient(100deg,transparent 5%,#000 60%)}
.band-hero > .wrap{position:relative;z-index:1}
.band-hero h1{color:var(--on-night);max-width:16ch}
.band-hero .lede{color:var(--on-night-soft)!important}
.band-hero .crumbs,.band-hero .crumbs a{color:var(--on-night-soft)}
.band-hero .label{color:var(--marker)}
.band-hero .res-hero,.band-hero.res-hero{padding-block:48px 44px}
@media (max-width:700px){.band-hero::before{width:240px;right:-70px;opacity:.35}}

/* tarjetas que se tiñen del color de su área */
.rcard{position:relative;overflow:hidden}
.rcard::after{content:"";position:absolute;right:-10px;bottom:-34px;font-family:var(--display);font-weight:800;font-size:120px;line-height:1;color:var(--c,var(--cobalt));opacity:.12;transition:opacity .2s,transform .3s}
.rcard:hover{background:var(--c,var(--cobalt));color:var(--night);border-color:var(--ink)}
.rcard:hover p,.rcard:hover .type,.rcard:hover .foot b{color:var(--night)}
.rcard:hover .tag{color:var(--night)}
.rcard:hover::after{opacity:.35;transform:rotate(-12deg) scale(1.1);color:var(--night)}
.rcard > *{position:relative;z-index:1}

/* cinta */
.ticker{border-block:3px solid var(--ink);background:var(--marker);color:var(--on-marker);overflow:hidden;white-space:nowrap}
.ticker-track{display:inline-flex;gap:40px;padding-block:14px;animation:tick 45s linear infinite;font-family:var(--display);font-weight:800;font-size:22px;letter-spacing:-.01em}
.ticker-track span::after{content:"";display:inline-block;width:24px;height:24px;margin-left:40px;vertical-align:-4px;background:var(--mk,var(--cobalt));-webkit-mask:var(--logo) center/contain no-repeat;mask:var(--logo) center/contain no-repeat}
@keyframes tick{to{transform:translateX(-50%)}}
.band-hero + .res-body,.band-hero + .g-body,.band-hero + .narrow,.band-hero + .stack,.band-hero + .gl{padding-top:36px}

/* ===== ilustraciones ===== */
.il{display:block;width:150px;max-width:100%;height:auto;overflow:visible}
.il .k{fill:none;stroke:var(--ink);stroke-width:2.5;stroke-linecap:round;stroke-linejoin:round}
.il .p{fill:var(--paper-2)}.il .f{fill:var(--c,var(--cobalt))}.il .m{fill:var(--marker)}.il .t{fill:var(--ink)}
.rcard::after{display:none}
.rcard{padding:0 18px 18px;gap:12px}
.rcard .illu{position:relative;margin:0 -18px;height:136px;display:grid;place-items:center;background:color-mix(in srgb,var(--c) 32%,var(--paper-2));border-bottom:2px solid var(--ink);transition:background .2s}
.rcard .illu .il{transition:transform .35s cubic-bezier(.3,1.5,.5,1)}
.rcard .illu .new{position:absolute;top:12px;right:12px}
.rcard:hover .illu{background:var(--paper-2)}
.rcard:hover .illu .il{transform:scale(1.1) rotate(-3deg)}
.rcard .top{margin-top:4px}
.rcard .foot{justify-content:flex-end}
.rcard:focus-visible{outline:4px solid var(--cobalt);outline-offset:3px}
/* tarjeta de cabecera de cada recurso */
.hero-split{display:grid;grid-template-columns:minmax(0,1fr) 320px;gap:40px;align-items:center}
.hero-tile{background:color-mix(in srgb,var(--c) 38%,var(--paper-2));border:3px solid var(--on-night);border-radius:28px;padding:26px;box-shadow:12px 12px 0 var(--c);transform:rotate(2.5deg);transition:transform .4s}
.hero-tile:hover{transform:rotate(-1deg) scale(1.03)}
.hero-tile .il{width:100%}
.band-hero:has(.hero-tile)::before{opacity:.18}
@media (max-width:820px){.hero-split{grid-template-columns:1fr}.hero-tile{max-width:190px;padding:14px;order:-1;transform:rotate(-2deg);box-shadow:8px 8px 0 var(--c)}}

/* ===== accesibilidad ===== */
.vh{position:absolute!important;width:1px;height:1px;overflow:hidden;clip:rect(0 0 0 0);white-space:nowrap}
.skip{position:fixed;left:max(12px,env(safe-area-inset-left,0px));top:-80px;z-index:100;background:var(--marker);color:var(--on-marker);padding:10px 18px;border-radius:999px;font-weight:700;border:2px solid var(--ink);text-decoration:none}
.skip:focus{top:calc(10px + env(safe-area-inset-top,0px))}
main:focus{outline:none}
.a11y-fab{position:fixed;right:max(16px,env(safe-area-inset-right,0px));bottom:calc(16px + env(safe-area-inset-bottom,0px));z-index:60;display:inline-flex;align-items:center;gap:8px;background:var(--cobalt);color:var(--on-cobalt);border:3px solid var(--ink);border-radius:999px;padding:10px 16px 10px 12px;font:700 15px var(--body);cursor:pointer;box-shadow:4px 4px 0 var(--ink)}
.a11y-fab:hover{transform:translateY(-2px)}
@media (max-width:560px){.a11y-fab span{position:absolute;width:1px;height:1px;overflow:hidden;clip:rect(0 0 0 0)}.a11y-fab{padding:12px}}
.a11y-panel{position:fixed;right:max(16px,env(safe-area-inset-right,0px));bottom:calc(84px + env(safe-area-inset-bottom,0px));z-index:61;width:min(400px,calc(100vw - 32px));max-height:min(78vh,640px);overflow:auto;background:var(--paper-2);color:var(--ink);border:3px solid var(--ink);border-radius:20px;box-shadow:8px 8px 0 var(--ink);padding:18px;display:grid;gap:4px}
.a11y-panel[hidden]{display:none!important}
.a11y-head{display:flex;justify-content:space-between;align-items:center;margin-bottom:6px}
.a11y-head h2{font-size:26px}
.a11y-row{display:flex;justify-content:space-between;align-items:center;gap:12px;padding:12px 0;border-top:1.5px solid var(--line);flex-wrap:wrap}
.a11y-row b{display:block;font-size:16px}.a11y-row small{color:var(--ink-soft);font-size:13px}
.sw{position:relative;width:54px;height:30px;border-radius:999px;border:2px solid var(--ink);background:var(--paper-3);cursor:pointer;flex:none}
.sw::after{content:"";position:absolute;top:3px;left:3px;width:20px;height:20px;border-radius:50%;background:var(--ink);transition:left .2s}
.sw[aria-checked="true"]{background:var(--cobalt)}
.sw[aria-checked="true"]::after{left:27px;background:var(--on-cobalt)}
.sw:focus-visible{outline:3px solid var(--cobalt);outline-offset:3px}
/* preferencias */
html.a11y-zoom body{zoom:var(--zoom)}
html.a11y-font{--body:"Lexend","Atkinson Hyperlegible","Segoe UI",system-ui,sans-serif}
html.a11y-space body{line-height:1.9;letter-spacing:.035em;word-spacing:.12em}
html.a11y-space p{margin-bottom:.4em}
html.a11y-links a:not(.btn):not(.rcard):not(.brand):not(.gcard){text-decoration:underline!important;text-decoration-thickness:2px;text-underline-offset:3px}
html.a11y-links .rcard h3,html.a11y-links .gcard h3{text-decoration:underline;text-underline-offset:4px}
html.a11y-still *,html.a11y-still *::before,html.a11y-still *::after{animation:none!important;transition:none!important}
html.a11y-hc.a11y-hc.a11y-hc{--ink-soft:var(--ink);--line:var(--ink);--grid:transparent;--paper-3:var(--paper-2)}
html.a11y-hc .band-hero,html.a11y-hc .hero-x{--on-night-soft:#FFFFFF;--ink-soft:#FFFFFF;background-image:none}
html.a11y-hc .tag,html.a11y-hc .chip,html.a11y-hc input,html.a11y-hc select,html.a11y-hc textarea,html.a11y-hc .panel{border-width:2px}
html.a11y-hc body{background-image:none}
html.a11y-hc .tag.a-dis,html.a11y-hc .tag.a-pro,html.a11y-hc .tag.a-tut,html.a11y-hc .tag.a-eva,html.a11y-hc .tag.a-acc,html.a11y-hc .tag.a-pla,html.a11y-hc .tag.a-neg{color:var(--ink)}
html.a11y-hc .band-hero .tag{color:#FFFFFF}

/* ===== buscador de comandos ===== */
.cmdk-btn{display:inline-flex;align-items:center;gap:8px;margin-left:12px;padding:7px 8px 7px 12px;border-radius:999px;border:2px solid var(--ink);background:var(--paper-2);color:var(--ink);font:600 14px var(--body);cursor:pointer}
.cmdk-btn:hover{background:var(--marker);color:var(--on-marker)}
.cmdk-btn kbd,.cmdk kbd{font:600 11px var(--mono);padding:2px 6px;border-radius:5px;border:1.5px solid var(--line);background:var(--paper);color:var(--ink-soft)}
.site-nav{margin-left:auto}
@media (max-width:900px){.cmdk-btn{margin-left:auto}.cmdk-btn span,.cmdk-btn kbd{display:none}.cmdk-btn{padding:8px}.site-head .menu-btn{margin-left:8px}}
.cmdk{width:min(680px,calc(100vw - 24px));max-height:min(78vh,620px);padding:0;border:3px solid var(--ink);border-radius:22px;background:var(--paper-2);color:var(--ink);box-shadow:12px 12px 0 var(--cobalt);overflow:hidden;margin-top:12vh}
.cmdk[open]{display:flex;flex-direction:column;animation:cmdin .22s cubic-bezier(.3,1.4,.5,1)}
.cmdk::backdrop{background:rgba(5,8,26,.62);backdrop-filter:blur(5px)}
@keyframes cmdin{from{transform:translateY(-14px) scale(.97);opacity:0}}
.cmdk-in{display:flex;align-items:center;gap:12px;padding:16px 18px;border-bottom:2px solid var(--ink)}
.cmdk-nab{font:800 30px/1 var(--display);color:var(--cobalt)}
.cmdk-in input{border:0;background:transparent;font-size:19px;padding:6px 0}
.cmdk-in input:focus{outline:none}
.cmdk ul{list-style:none;margin:0;padding:8px;overflow:auto;flex:1}
.cmdk li[role=option]{display:grid;grid-template-columns:52px 1fr auto;gap:12px;align-items:center;padding:8px 10px;border-radius:14px;cursor:pointer}
.cmdk li[aria-selected=true]{background:color-mix(in srgb,var(--c) 30%,var(--paper-2));outline:2px solid var(--ink)}
.cmdk-ic{width:52px;height:40px;border-radius:10px;display:grid;place-items:center;background:color-mix(in srgb,var(--c) 35%,var(--paper))}
.cmdk-ic .il{width:46px}.cmdk-ic b{font:800 22px var(--display);color:var(--ink)}
.cmdk-tx b{display:block;font-size:16px}.cmdk-tx small{color:var(--ink-soft);font-size:13px}
.cmdk-go{font:700 16px var(--mono);color:var(--ink-soft);opacity:0}.cmdk li[aria-selected=true] .cmdk-go{opacity:1}
.cmdk-empty{padding:24px;text-align:center;color:var(--ink-soft)}
.cmdk-foot{display:flex;gap:16px;flex-wrap:wrap;padding:10px 18px;border-top:1.5px solid var(--line);font-size:12px;color:var(--ink-soft);margin:0}
/* ===== sello emergente ===== */
.stamp-pop{position:fixed;left:50%;top:calc(84px + env(safe-area-inset-top,0px));transform:translateX(-50%);z-index:70;display:flex;align-items:center;gap:14px;padding:10px 20px 10px 10px;border-radius:999px;background:var(--night);color:var(--on-night);border:3px solid var(--ac);box-shadow:0 14px 40px -10px rgba(0,0,0,.5);text-decoration:none;animation:stampin .7s cubic-bezier(.2,1.6,.4,1) both}
.stamp-pop .sp-ring{width:64px;height:64px;border-radius:50%;display:grid;place-items:center;background:var(--ac);border:3px solid var(--marker);animation:thump .7s .25s cubic-bezier(.2,1.8,.4,1) both}
.stamp-pop .il{width:48px;--c:#fff}.stamp-pop .il .k{stroke:var(--night)}.stamp-pop .il .t{fill:var(--night)}.stamp-pop .il .p{fill:#fff}
.stamp-pop b{display:block;font:800 19px var(--display)}.stamp-pop small{color:var(--on-night-soft);font-size:13px}
.stamp-pop.out{opacity:0;transform:translate(-50%,-20px);transition:all .5s}
@keyframes stampin{from{transform:translate(-50%,-40px) scale(.6);opacity:0}}
@keyframes thump{0%{transform:scale(2.2) rotate(-25deg);opacity:0}100%{transform:none}}
/* ===== transiciones entre páginas ===== */
@media (prefers-reduced-motion: no-preference){
  @view-transition{navigation:auto}
  .site-head{view-transition-name:head}
  .hero-tile .il{view-transition-name:hero-il}
  ::view-transition-old(root){animation:.28s cubic-bezier(.4,0,.2,1) both vt-out}
  ::view-transition-new(root){animation:.42s cubic-bezier(.2,.9,.3,1) both vt-in}
  ::view-transition-group(hero-il){animation-duration:.55s;animation-timing-function:cubic-bezier(.3,1.2,.4,1)}
}
html.a11y-still{view-transition-name:none}
@keyframes vt-out{to{opacity:0;transform:scale(.98)}}
@keyframes vt-in{from{opacity:0;transform:translateY(28px)}}
.cmdk-btn kbd{white-space:nowrap}@media (max-width:1180px){.cmdk-btn kbd{display:none}}
.cmdk-nab{width:30px;height:30px;flex:none;background:var(--cobalt);-webkit-mask:var(--logo) center/contain no-repeat;mask:var(--logo) center/contain no-repeat}
.mini-mark{display:block;width:26px;height:26px;background:var(--ink);-webkit-mask:var(--logo) center/contain no-repeat;mask:var(--logo) center/contain no-repeat}
.brand-mark{width:34px;height:34px;flex:none}

/* ===== relieve 3D en tarjetas ===== */
.rcard{transform-style:preserve-3d;will-change:transform}
.rcard.tilt{transition:transform .08s linear,box-shadow .2s}
.rcard .glare{position:absolute;inset:0;pointer-events:none;border-radius:inherit;background:radial-gradient(circle at var(--gx,50%) var(--gy,50%),rgba(255,255,255,.45),transparent 55%);opacity:0;transition:opacity .2s;z-index:3;mix-blend-mode:soft-light}
.rcard.tilt .glare{opacity:1}
/* ===== barra de progreso de lectura ===== */
.read-bar{position:absolute;left:0;bottom:-1px;height:4px;width:100%;transform-origin:0 50%;transform:scaleX(var(--p,0));background:linear-gradient(90deg,var(--cobalt),var(--b-tut),var(--marker));pointer-events:none}
html.a11y-still .enter .w{animation:none}
@media (prefers-reduced-motion: reduce){.enter .w{animation:none!important}}
/* ===== caminos ===== */
.cam-switch{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:10px;margin-top:26px}
.cam-switch a{border:2px solid color-mix(in srgb,var(--on-night) 35%,transparent);border-radius:16px;padding:12px 14px;color:var(--on-night);text-decoration:none;display:grid;gap:2px;transition:transform .15s}
.cam-switch a:hover{transform:translateY(-2px);border-color:var(--cc)}
.cam-switch a[aria-current]{background:var(--cc);color:var(--night);border-color:var(--cc)}
.cam-switch small{font:600 11px var(--mono);letter-spacing:.1em;text-transform:uppercase;opacity:.85}
.cam-switch b{font:800 18px/1.15 var(--display)}
.cam-group{display:grid;gap:18px;padding-block:30px;border-top:2px solid var(--line)}
.cam-gh{display:flex;gap:16px;align-items:flex-start}
.cam-gh h2{font-size:clamp(26px,3vw,36px)}
.cam-gh p{color:var(--ink-soft);margin-top:4px}
.cam-n{flex:none;width:54px;height:54px;border-radius:16px;display:grid;place-items:center;font:800 20px var(--display);background:var(--cc,var(--cobalt));color:var(--night);border:2px solid var(--ink);box-shadow:4px 4px 0 var(--ink)}
.cam-guides{display:grid;grid-template-columns:repeat(auto-fill,minmax(220px,1fr));gap:10px}
.cam-guide{border:2px solid var(--ink);border-left:10px solid var(--c);border-radius:14px;padding:14px 16px;text-decoration:none;color:var(--ink);background:var(--paper-2);display:grid;gap:4px;transition:transform .15s}
.cam-guide:hover{transform:translateY(-2px)}
.cam-guide b{font:800 19px/1.2 var(--display)}
.cam-steps{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:12px;counter-reset:cs}
.cam-steps>div{counter-increment:cs;border:2px solid var(--ink);border-radius:16px;padding:16px;background:var(--paper-2);display:grid;gap:6px;align-content:start}
.cam-steps>div::before{content:counter(cs);width:34px;height:34px;border-radius:50%;display:grid;place-items:center;background:var(--cc,var(--cobalt));color:var(--night);font:800 16px var(--display);border:2px solid var(--ink)}
.cam-steps b{font:800 20px var(--display)}
.cam-steps p{font-size:15px;color:var(--ink-soft)}
.cam-steps a{font-weight:700}
.ruta-top{display:flex;gap:24px;align-items:center;flex-wrap:wrap}
.ring{width:120px;height:120px;border-radius:50%;background:conic-gradient(var(--b-tut) calc(var(--p,0)*1%),var(--line) 0);display:grid;place-items:center;flex:none;border:2px solid var(--ink)}
.ring span{width:88px;height:88px;border-radius:50%;background:var(--paper);display:grid;place-items:center;font:800 26px var(--display);border:2px solid var(--ink)}
.ruta{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:14px;list-style:none;padding:0;margin:0}
.etapa{position:relative;height:100%;box-sizing:border-box;border:2.5px solid var(--ink);border-radius:18px;padding:16px;background:var(--paper-2);display:grid;gap:8px;align-content:start;text-decoration:none;color:var(--ink);transition:transform .15s}
.etapa:hover{transform:translateY(-3px)}
.etapa .num{width:40px;height:40px;border-radius:50%;display:grid;place-items:center;font:800 18px var(--display);border:2px solid var(--ink);background:var(--paper)}
.etapa h3{font-size:20px}
.etapa p{font-size:14px;color:var(--ink-soft)}
.etapa .st{font:700 13px var(--body);justify-self:start;padding:3px 10px;border-radius:999px;background:var(--paper-3,var(--line));color:var(--ink)}
.etapa.ok{background:var(--ok-soft)}
.etapa.ok .num{background:var(--ok);color:#fff;border-color:var(--ok)}
.etapa.ok .st{background:var(--ok);color:#fff}
.etapa.next{box-shadow:7px 7px 0 var(--b-tut)}
.etapa.next .st{background:var(--marker);color:var(--on-marker)}
.cert-card{border:4px double var(--ink);border-radius:24px;padding:38px 30px;background:var(--paper);text-align:center;display:grid;gap:10px;justify-items:center;max-width:760px;margin-inline:auto}
.cert-card h3{font-size:clamp(28px,4vw,44px)}
.cert-card .who{font:800 clamp(30px,5vw,52px)/1.1 var(--display);color:var(--cobalt);border-bottom:3px solid var(--marker);padding-bottom:6px}
.cert-card ul{list-style:none;padding:0;margin:6px 0 0;display:flex;flex-wrap:wrap;gap:6px;justify-content:center}
.cert-card li{font-size:13px;border:1.5px solid var(--line);border-radius:999px;padding:3px 10px}
.basics{display:grid;grid-template-columns:repeat(5,minmax(0,1fr));gap:10px}
.basics>div{border:2px solid var(--ink);border-radius:16px;padding:14px;background:var(--paper-2);display:grid;gap:6px;align-content:start}
.basics b{font:800 19px var(--display)}
.basics p{font-size:14px;color:var(--ink-soft)}
.basics .il{width:100%;max-width:120px}
@media (max-width:1000px){.ruta{grid-template-columns:repeat(2,minmax(0,1fr))}.basics{grid-template-columns:repeat(2,minmax(0,1fr))}.cam-steps{grid-template-columns:repeat(2,minmax(0,1fr))}}
@media (max-width:620px){.ruta,.basics,.cam-steps,.cam-switch{grid-template-columns:1fr}}
@media print{body.print-cert .site-head,body.print-cert .site-foot,body.print-cert main>*:not(#certificado),body.print-cert #certificado>*:not(#cert-out),body.print-cert .a11y-fab,body.print-cert .toast{display:none!important}body.print-cert #cert-out{display:block!important}}
.cat-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(270px,1fr));gap:16px}
/* ===== tarjetas: más vida ===== */
.rcard .illu{background-image:radial-gradient(color-mix(in srgb,var(--ink) 14%,transparent) 1.2px,transparent 1.4px);background-size:14px 14px}
.rcard .illu::after{content:"";position:absolute;left:0;right:0;bottom:0;height:6px;background:var(--c)}
.rcard .lchip{position:absolute;top:12px;left:12px;display:grid;place-items:center;min-width:30px;height:30px;padding:0 6px;border-radius:9px;background:var(--lc);color:#0A1024;font:800 13px var(--display);border:2px solid var(--ink);z-index:2}
.rcard .seen{position:absolute;left:12px;bottom:14px;font:700 11px var(--body);background:var(--ink);color:var(--paper);padding:3px 8px;border-radius:999px;z-index:2}
.rcard .illu .il{width:150px;filter:drop-shadow(4px 4px 0 color-mix(in srgb,var(--ink) 22%,transparent))}
@keyframes draw{from{stroke-dashoffset:420}to{stroke-dashoffset:0}}
.rcard:hover .illu .il .k{stroke-dasharray:420;animation:draw .9s ease-out both}
.rcard.t-sim .illu::before{content:"Juega";position:absolute;right:-34px;bottom:18px;transform:rotate(-38deg);background:var(--marker);color:var(--on-marker);font:800 11px var(--mono);letter-spacing:.12em;text-transform:uppercase;padding:3px 40px;border:2px solid var(--ink);z-index:2}
.rcard.t-sim .illu{background-color:color-mix(in srgb,var(--c) 45%,var(--paper-2))}
.rcard.t-sim:hover .illu{background-image:repeating-linear-gradient(-45deg,color-mix(in srgb,var(--c) 30%,var(--paper-2)) 0 12px,var(--paper-2) 12px 24px)}
html.a11y-still .rcard:hover .illu .il .k{animation:none}
@media (prefers-reduced-motion:reduce){.rcard:hover .illu .il .k{animation:none}}
/* ===== héroe de recurso ===== */
.lpill{display:inline-flex;align-items:center;gap:8px;padding:3px 12px 3px 3px;border-radius:999px;border:2px solid var(--lc);color:var(--on-night,#fff)!important;text-decoration:none;font:700 13px var(--body)}
.lpill b{display:inline-grid;place-items:center;min-width:26px;height:26px;border-radius:999px;background:var(--lc);color:#0A1024;font:800 12px var(--display)}
.lpill:hover{background:var(--lc);color:#0A1024!important}
@keyframes bob{0%,100%{transform:rotate(-2deg) translateY(0)}50%{transform:rotate(1deg) translateY(-8px)}}
.band-hero .hero-tile{animation:bob 6s ease-in-out infinite}
html.a11y-still .band-hero .hero-tile{animation:none}
@media (prefers-reduced-motion:reduce){.band-hero .hero-tile{animation:none}}
.band-hero h1{background:linear-gradient(100deg,var(--on-night) 60%,var(--marker));-webkit-background-clip:text;background-clip:text;color:transparent}
html.a11y-hc .band-hero h1{background:none;color:var(--on-night)}

/* ===== cita y licencia ===== */
.cite{display:grid;gap:8px;border:2.5px solid var(--ink);border-radius:16px;padding:14px 16px;background:var(--paper);border-left:10px solid var(--marker)}
.cite-txt{font:500 14px/1.5 var(--body);background:var(--paper-2);border-radius:10px;padding:10px 12px;border:1.5px dashed var(--line)}
.cite .btn{justify-self:start}.cite-note{font-size:13px;color:var(--ink-soft)}
.lic{display:grid;grid-template-columns:auto 1fr auto;gap:22px;align-items:center;padding:22px 26px;border:2px solid rgba(255,255,255,.2);border-radius:24px;margin-bottom:34px;background:linear-gradient(110deg,rgba(255,210,63,.14),transparent 60%)}
.lic-badge{display:grid;place-items:center;width:84px;height:84px;border-radius:50%;background:var(--marker);color:var(--on-marker);font:800 18px/1 var(--display);text-align:center;border:3px solid var(--on-night);transform:rotate(-8deg)}
.lic h4{font:800 clamp(20px,2.4vw,28px)/1.15 var(--display);color:var(--on-night);margin:0 0 6px;text-transform:none;letter-spacing:0}
.lic p{color:var(--on-night-soft);margin:0;max-width:70ch}
.lic a.btn{color:var(--on-marker);background:var(--marker);border-color:var(--marker)}
@media (max-width:760px){.lic{grid-template-columns:1fr;justify-items:start}}

/* mi mesa: enlaces de herramientas */
.site-nav a.tool{font-weight:700;color:var(--ink)}
.site-nav a.tool::before{content:"";display:inline-block;width:8px;height:8px;border-radius:50%;background:var(--marker);border:1.5px solid var(--ink);margin-right:7px;vertical-align:1px}
@media (min-width:1121px) and (max-width:1320px){.site-nav a{padding:7px 9px;font-size:14px}.cmdk-btn kbd,.brand-tag{display:none}}

/* huecos de publicidad (se activan al configurar AdSense en common.js) */
.ad-slot{margin:28px auto;max-width:980px;min-height:100px;text-align:center}.ad-slot .ad-lbl{display:block;font:600 11px var(--mono);letter-spacing:.1em;text-transform:uppercase;color:var(--ink-soft);margin-bottom:6px}
.site-nav a.navbiz{background:var(--marker);color:var(--on-marker);font-weight:800;border:1.5px solid var(--ink)}
.site-nav{flex-wrap:nowrap;align-items:center}
@media (min-width:1121px) and (max-width:1380px){.site-nav a{padding:6px 8px;font-size:14px}.cmdk-btn span,.cmdk-btn kbd{display:none}.site-nav a.tool::before{margin-right:5px}}

/* ventana de contacto */
.mail-dlg{border:2px solid var(--ink);border-radius:22px;padding:0;width:min(520px,calc(100vw - 24px));background:var(--paper-2);color:var(--ink);box-shadow:10px 10px 0 var(--ink)}
.mail-dlg::backdrop{background:rgba(10,16,36,.55)}
.mail-in{padding:22px;display:grid;gap:14px}
.mail-h{display:flex;justify-content:space-between;align-items:center}.mail-h h2{font:800 28px var(--display)}
.mail-op{display:grid;gap:8px}.mail-op .btn{justify-content:center}
.mail-o{font-size:14px;color:var(--ink-soft)}
.mail-addr{display:flex;flex-wrap:wrap;gap:10px;align-items:center;justify-content:space-between;border:1.5px solid var(--line);border-radius:12px;padding:10px 12px;background:var(--paper)}
.mail-addr b{overflow-wrap:anywhere}
.mail-body{white-space:pre-wrap;font:400 14px var(--body);background:var(--paper);border:1.5px solid var(--line);border-radius:12px;padding:12px;margin:8px 0}
@media (max-width:520px){.site-head .brand span{font-size:18px}.site-head .brand .brand-mark{width:34px;height:34px}.site-head .brand{gap:8px}}
@media (max-width:400px){.site-head .brand span{font-size:16px;letter-spacing:-.03em}}
.foot-brand{white-space:normal;align-items:center}
.site-foot .foot-brand{font-size:22px;line-height:1.15}
@media (max-width:1240px){.site-head .brand-tag{display:none}}
@media (max-width:1180px) and (min-width:1121px){.site-head .brand span{font-size:20px}}
@media (max-width:520px){.site-head .brand{white-space:normal}.site-head .brand span{font-size:17px;line-height:1.05;max-width:9.5em}}
.site-head .brand-tag{display:none!important}
.site-head .cmdk-btn span,.site-head .cmdk-btn kbd{display:none}
@media (min-width:1121px) and (max-width:1260px){.site-head .brand span{font-size:18px}.site-nav a{padding:6px 7px;font-size:13.5px}.site-head .brand{gap:8px}}