/* Concepto: cuaderno de auditoría. Columna de lectura para las lecciones, rejilla para las herramientas. */
@font-face{font-family:"Plex Sans";src:url(/fonts/ibm-plex-sans-latin-400-normal.woff2) format("woff2");font-weight:400;font-display:swap}
@font-face{font-family:"Plex Sans";src:url(/fonts/ibm-plex-sans-latin-400-italic.woff2) format("woff2");font-weight:400;font-style:italic;font-display:swap}
@font-face{font-family:"Plex Sans";src:url(/fonts/ibm-plex-sans-latin-500-normal.woff2) format("woff2");font-weight:500;font-display:swap}
@font-face{font-family:"Plex Sans";src:url(/fonts/ibm-plex-sans-latin-600-normal.woff2) format("woff2");font-weight:600;font-display:swap}
@font-face{font-family:"Plex Condensed";src:url(/fonts/ibm-plex-sans-condensed-latin-600-normal.woff2) format("woff2");font-weight:600;font-display:swap}
@font-face{font-family:"Plex Condensed";src:url(/fonts/ibm-plex-sans-condensed-latin-700-normal.woff2) format("woff2");font-weight:700;font-display:swap}
@font-face{font-family:"Plex Mono";src:url(/fonts/ibm-plex-mono-latin-400-normal.woff2) format("woff2");font-weight:400;font-display:swap}
@font-face{font-family:"Plex Mono";src:url(/fonts/ibm-plex-mono-latin-500-normal.woff2) format("woff2");font-weight:500;font-display:swap}

:root{
  --bg:#F2F5F8; --surface:#FFFFFF; --sunken:#E9EEF3; --ink:#15202B; --muted:#5A6774; --line:#D6DDE4;
  --accent:#1C5A8A; --accent-ink:#FFFFFF; --accent-soft:#E3EDF6;
  --ok:#2E7647; --ok-soft:#E3F1E7; --bad:#B4441A; --bad-soft:#F8E6DE; --warn:#9A6A08; --warn-soft:#F6EED9;
  --heat0:#E3E8EE; --heat1:#B9D1E6; --heat2:#7FAACF; --heat3:#3F7DB0; --heat4:#1C5A8A;
  --f-display:"Plex Condensed","Arial Narrow",system-ui,sans-serif;
  --f-body:"Plex Sans",system-ui,-apple-system,"Segoe UI",sans-serif;
  --f-mono:"Plex Mono",ui-monospace,"SFMono-Regular",Menlo,monospace;
  color-scheme:light;
}
@media (prefers-color-scheme:dark){:root{
  --bg:#0E141A; --surface:#161F28; --sunken:#111A22; --ink:#E5EBF1; --muted:#95A2AF; --line:#2A3643;
  --accent:#6AA8D8; --accent-ink:#0E141A; --accent-soft:#1B2D3D;
  --ok:#72C08F; --ok-soft:#16291E; --bad:#F08C62; --bad-soft:#331C14; --warn:#E0B454; --warn-soft:#2E2512;
  --heat0:#1C2631; --heat1:#1E3A52; --heat2:#2C5A80; --heat3:#4A84B4; --heat4:#7DB5E0;
  color-scheme:dark}}

*{box-sizing:border-box}
html,body{margin:0}
body{background:var(--bg);color:var(--ink);font:400 16px/1.6 var(--f-body);-webkit-font-smoothing:antialiased}
[hidden]{display:none!important}
a{color:var(--accent)}
:focus-visible{outline:2px solid var(--accent);outline-offset:2px}
h1,h2,h3{font-family:var(--f-display);line-height:1.15;text-wrap:balance;margin:0}
h1{font-size:clamp(28px,5vw,38px);font-weight:700}
h2{font-size:24px;font-weight:600}
h3{font-size:19px;font-weight:600}
p{margin:0}
.muted{color:var(--muted)}
.eyebrow{font-family:var(--f-mono);font-size:12px;letter-spacing:.08em;text-transform:uppercase;color:var(--muted)}
.mono{font-family:var(--f-mono)}
.num{font-variant-numeric:tabular-nums}

/* Botones y controles */
.btn{display:inline-flex;align-items:center;justify-content:center;text-decoration:none;font:600 15px/1 var(--f-body);border-radius:6px;padding:11px 18px;border:1px solid var(--accent);background:var(--accent);color:var(--accent-ink);cursor:pointer}
.btn.ghost{background:transparent;color:var(--accent)}
.btn.small{padding:7px 12px;font-size:14px}
.btn:disabled{opacity:.45;cursor:default}
.link-btn{background:none;border:0;color:var(--muted);font:500 14px var(--f-body);cursor:pointer;padding:6px}
.link-btn:hover{color:var(--ink)}
input,select{font:inherit;color:var(--ink);background:var(--surface);border:1px solid var(--line);border-radius:6px;padding:10px 12px;width:100%}
label{font-size:14px;font-weight:500}
.error{color:var(--bad);font-size:14px}
.badge{display:inline-block;min-width:20px;padding:1px 6px;border-radius:999px;background:var(--accent);color:var(--accent-ink);font:500 11px/16px var(--f-mono);text-align:center}
.chip{font:500 13px var(--f-body);border:1px solid var(--line);background:var(--surface);color:var(--ink);border-radius:999px;padding:5px 11px;cursor:pointer}
.chip[aria-pressed="true"]{background:var(--accent);border-color:var(--accent);color:var(--accent-ink)}
.chips{display:flex;flex-wrap:wrap;gap:8px}
.pill{display:inline-block;font:500 11px var(--f-mono);letter-spacing:.05em;text-transform:uppercase;padding:2px 8px;border-radius:999px;border:1px solid currentColor;white-space:nowrap}

/* Login */
.login{min-height:100vh;display:grid;place-items:center;padding-block:24px;padding-left:max(16px,env(safe-area-inset-left,0px));padding-right:max(16px,env(safe-area-inset-right,0px))}
.login-card{width:100%;max-width:380px;background:var(--surface);border:1px solid var(--line);border-radius:8px;padding:28px;display:flex;flex-direction:column;gap:12px}
.login-card .btn{margin-top:6px}

/* Estructura */
.brand{display:flex;align-items:center;gap:10px;font:700 18px var(--f-display);color:var(--ink);text-decoration:none;letter-spacing:.01em}
.mark{width:14px;height:18px;background:var(--accent);clip-path:polygon(50% 0,100% 18%,100% 55%,50% 100%,0 55%,0 18%)}
.topbar{position:sticky;top:0;z-index:10;background:var(--surface);border-bottom:1px solid var(--line)}
.topbar-inner{max-width:1080px;margin:0 auto;display:flex;align-items:center;gap:20px;padding-block:10px;padding-left:max(16px,env(safe-area-inset-left,0px));padding-right:max(16px,env(safe-area-inset-right,0px))}
nav{display:flex;gap:4px;flex:1;overflow-x:auto;scrollbar-width:none}
nav a{color:var(--muted);text-decoration:none;font-weight:500;font-size:15px;padding:7px 10px;border-radius:6px;white-space:nowrap;display:flex;align-items:center;gap:6px}
nav a:hover{color:var(--ink);background:var(--sunken)}
nav a[aria-current="page"]{color:var(--ink);background:var(--accent-soft)}
.main{max-width:1080px;margin:0 auto;padding-block:32px 80px;padding-left:max(16px,env(safe-area-inset-left,0px));padding-right:max(16px,env(safe-area-inset-right,0px));display:flex;flex-direction:column;gap:28px;outline:none}
.page-head{display:flex;flex-direction:column;gap:8px;border-bottom:2px solid var(--ink);padding-bottom:16px}
.panel{background:var(--surface);border:1px solid var(--line);border-radius:8px;padding:22px;display:flex;flex-direction:column;gap:14px;min-width:0}
.grid-today{display:grid;grid-template-columns:minmax(0,1fr) 300px;gap:24px;align-items:start}
.side{display:flex;flex-direction:column;gap:16px;position:sticky;top:76px}
.row{display:flex;flex-wrap:wrap;gap:10px;align-items:center}
.spread{display:flex;justify-content:space-between;align-items:center;gap:12px;flex-wrap:wrap}

/* Navegación de días */
.daynav{display:flex;align-items:center;gap:8px}
.daynav button{background:var(--surface);border:1px solid var(--line);border-radius:6px;width:34px;height:34px;cursor:pointer;color:var(--ink);font-size:16px}
.daynav .date{font-family:var(--f-mono);font-size:14px;min-width:12ch;text-align:center}

/* Lecciones */
.lesson{max-width:68ch}
.lesson h2{margin-top:34px;margin-bottom:10px;font-size:22px}
.lesson p{margin:0 0 14px}
.lesson ul,.lesson ol{margin:0 0 14px;padding-left:22px}
.lesson li{margin-bottom:6px}
.lesson code{font-family:var(--f-mono);font-size:.88em;background:var(--sunken);padding:1px 5px;border-radius:3px;overflow-wrap:anywhere}
.lesson pre{background:var(--sunken);border:1px solid var(--line);border-radius:6px;padding:14px 16px;overflow-x:auto;margin:0 0 16px}
.lesson pre code{background:none;padding:0;font-size:13.5px;line-height:1.55;overflow-wrap:normal}
.table-wrap{overflow-x:auto;margin:0 0 16px}
table{border-collapse:collapse;width:100%;font-size:15px}
th{text-align:left;font:500 12px var(--f-mono);letter-spacing:.05em;text-transform:uppercase;color:var(--muted);padding:8px 10px;border-bottom:1px solid var(--line)}
td{padding:9px 10px;border-bottom:1px solid var(--line);vertical-align:top}
.done-bar{display:flex;align-items:center;gap:14px;flex-wrap:wrap;border-top:1px solid var(--line);padding-top:18px;margin-top:8px}
.status-ok{color:var(--ok);font-weight:600}

/* Tarjetas laterales */
.kv{display:flex;flex-direction:column;gap:4px}
.kv b{font:700 30px var(--f-display);font-variant-numeric:tabular-nums}
.meter{height:6px;background:var(--sunken);border-radius:3px;overflow:hidden}
.meter i{display:block;height:100%;background:var(--accent)}

/* Temario */
.phase{display:flex;flex-direction:column;gap:12px}
.phase-head{display:flex;gap:14px;align-items:baseline;flex-wrap:wrap}
.phase-head .mono{color:var(--accent);font-size:13px}
.weeks{display:flex;flex-direction:column;border:1px solid var(--line);border-radius:8px;overflow:hidden;background:var(--surface)}
.week{display:grid;grid-template-columns:64px minmax(0,1fr) auto;gap:14px;padding:12px 16px;border-top:1px solid var(--line);align-items:start}
.week:first-child{border-top:0}
.week.current{background:var(--accent-soft)}
.week .wn{font:500 13px var(--f-mono);color:var(--muted);padding-top:2px}
.week .wt{display:flex;flex-direction:column;gap:3px;min-width:0}
.week .wt strong{font-weight:600}
.week .wt span{font-size:14px;color:var(--muted)}
.week .wl{display:flex;flex-wrap:wrap;gap:6px;margin-top:6px}
.week .wl a{font-size:13px;text-decoration:none;border:1px solid var(--line);border-radius:4px;padding:2px 8px;background:var(--surface)}
.week .wl a.is-done{border-color:var(--ok);color:var(--ok)}
.week .wd{font:500 12px var(--f-mono);color:var(--muted);white-space:nowrap;padding-top:3px}

/* Flashcards */
.card-stage{max-width:620px;width:100%;margin:0 auto;display:flex;flex-direction:column;gap:16px}
.flash{background:var(--surface);border:1px solid var(--line);border-radius:10px;padding:30px 28px;min-height:280px;display:flex;flex-direction:column;gap:14px}
.flash .term{font:700 clamp(26px,5vw,34px)/1.1 var(--f-display)}
.flash .en{font-family:var(--f-mono);font-size:14px;color:var(--muted)}
.flash .def{font-size:17px;line-height:1.55;border-top:1px solid var(--line);padding-top:14px}
.flash .ex{font-size:15px;color:var(--muted)}
.flash .ex b{color:var(--ink);font-weight:600}
.grades{display:grid;grid-template-columns:repeat(4,1fr);gap:8px}
.grades button{font:600 14px var(--f-body);padding:12px 6px;border-radius:6px;border:1px solid var(--line);background:var(--surface);color:var(--ink);cursor:pointer;display:flex;flex-direction:column;align-items:center;gap:2px}
.grades button small{font:400 11px var(--f-mono);color:var(--muted)}
.grades .g0{border-color:var(--bad);color:var(--bad)}
.grades .g3{border-color:var(--ok);color:var(--ok)}

/* Escenarios */
.scenario-text{font-size:17px;line-height:1.55;background:var(--sunken);border-left:3px solid var(--accent);padding:14px 16px;border-radius:0 6px 6px 0}
.question{font-size:18px;font-weight:600}
.opts{display:flex;flex-direction:column;gap:10px}
.opt{text-align:left;font:400 15.5px/1.45 var(--f-body);color:var(--ink);background:var(--surface);border:1px solid var(--line);border-radius:6px;padding:12px 14px;cursor:pointer;display:grid;grid-template-columns:24px 1fr;gap:10px}
.opt .k{font:500 13px var(--f-mono);color:var(--muted);padding-top:2px}
.opt:hover:not(:disabled){border-color:var(--accent)}
.opt:disabled{cursor:default}
.opt.right{border-color:var(--ok);background:var(--ok-soft)}
.opt.wrong{border-color:var(--bad);background:var(--bad-soft)}
.opt.dim{opacity:.55}
.why{border-left:3px solid var(--ok);padding:4px 0 4px 14px}
.why.miss{border-color:var(--bad)}
.why strong{display:block;font:500 12px var(--f-mono);letter-spacing:.06em;text-transform:uppercase;margin-bottom:4px}
.why.hit strong{color:var(--ok)} .why.miss strong{color:var(--bad)}
.sc-list{display:flex;flex-direction:column;gap:2px}
.sc-item{display:grid;grid-template-columns:auto minmax(0,1fr) auto;gap:12px;align-items:center;padding:10px 12px;border-radius:6px;background:var(--surface);border:1px solid var(--line);cursor:pointer;text-align:left;font:inherit;color:inherit}
.sc-item:hover{border-color:var(--accent)}
.sc-item .txt{white-space:nowrap;overflow:hidden;text-overflow:ellipsis;font-size:15px}
.dot{width:10px;height:10px;border-radius:50%;background:var(--line)}
.dot.ok{background:var(--ok)} .dot.ko{background:var(--bad)}

/* Glosario */
.gl-tools{display:grid;grid-template-columns:minmax(0,1fr) 220px;gap:12px}
.gl-list{display:grid;grid-template-columns:repeat(auto-fill,minmax(300px,1fr));gap:12px}
.gl-term{background:var(--surface);border:1px solid var(--line);border-radius:8px;padding:16px;display:flex;flex-direction:column;gap:8px;min-width:0}
.gl-term h3{font-size:18px}
.gl-term .en{font:400 13px var(--f-mono);color:var(--muted)}
.gl-term p{font-size:15px}
.gl-term .ex{font-size:14px;color:var(--muted)}
.learned{color:var(--ok)}

/* Progreso */
.stats{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:12px}
.stat{background:var(--surface);border:1px solid var(--line);border-radius:8px;padding:16px;display:flex;flex-direction:column;gap:4px}
.stat b{font:700 34px/1 var(--f-display);font-variant-numeric:tabular-nums}
.stat span{font-size:13px;color:var(--muted)}
.timeline{position:relative;height:10px;background:var(--sunken);border-radius:5px}
.timeline i{position:absolute;left:0;top:0;bottom:0;background:var(--accent);border-radius:5px}
.timeline-labels{display:flex;justify-content:space-between;font:400 12px var(--f-mono);color:var(--muted)}
.heat-wrap{overflow-x:auto}
.heat{display:grid;grid-auto-flow:column;grid-template-rows:repeat(7,13px);gap:3px;width:max-content}
.heat i{width:13px;height:13px;border-radius:2px;background:var(--heat0)}
.heat i.l1{background:var(--heat1)} .heat i.l2{background:var(--heat2)} .heat i.l3{background:var(--heat3)} .heat i.l4{background:var(--heat4)}
.dom-row{display:grid;grid-template-columns:minmax(0,1fr) 120px 70px;gap:12px;align-items:center;padding:8px 0;border-bottom:1px solid var(--line);font-size:15px}
.empty{color:var(--muted);font-size:15px}

@media (max-width:880px){
  .grid-today{grid-template-columns:minmax(0,1fr)}
  .side{position:static}
  .stats{grid-template-columns:repeat(2,minmax(0,1fr))}
}
@media (max-width:600px){
  .topbar-inner{flex-wrap:wrap;gap:6px 12px}
  .topbar-inner .brand{margin-right:auto}
  nav{order:3;flex-basis:100%}
  .panel{padding:16px}
  .flash{padding:22px 18px}
  .week{grid-template-columns:44px minmax(0,1fr)}
  .week .wd{grid-column:2}
  .gl-tools{grid-template-columns:1fr}
  .grades{grid-template-columns:repeat(2,1fr)}
  .dom-row{grid-template-columns:minmax(0,1fr) 70px 54px}
}
@media (prefers-reduced-motion:reduce){*{transition:none!important;animation:none!important}}