/* PyAuditor — sistema visual de la skill pyauditor-design (v2, F5 16-ago-2026).
   Tokens heredados del plan v1 / F0 (papel verde-grisáceo, azul auditor, dorado
   para sellos, mono para código) + tratamiento visual de la familia trainer:
   tarjetas con borde y relieve, gradiente radial de fondo, segundo acento
   violeta para gradientes, logros con icono, teoría destacada, microanimaciones.
   Claro/oscuro vía prefers-color-scheme. */

:root {
  --bg: #FAFBFC;
  --bg-glow: #FFFFFF;
  --surface: #F0F2F5;
  --surface-2: #E7EAF0;
  --ink: #171A1E;
  --ink-2: #5C6470;
  --line: #E0E4EA;
  --accent: #2B6CB0;
  --accent-soft: #E7EFF8;
  --accent-2: #6D5AE0;
  --accent-2-soft: #EDEAFB;
  --gold: #8A6D1F;
  --gold-soft: #F5EFDD;
  --good: #1F7A4D;
  --good-soft: #E3F0E9;
  --bad: #C03A2B;
  --bad-soft: #F8E7E4;
  --mono: ui-monospace, "SF Mono", SFMono-Regular, Menlo, Consolas, monospace;
  --radius: 14px;
  /* tokens del highlighter */
  --py-kw: #2B6CB0;
  --py-str: #1F7A4D;
  --py-num: #8A6D1F;
  --py-com: #5C645E;
  /* colores oficiales del logo de Python */
  --python-blue: #306998;
  --python-yellow: #C99E14;
}
@media (prefers-color-scheme: dark) {
  :root {
    --bg: #0E1117; --bg-glow: #1A2233;
    --surface: #171C26; --surface-2: #1F2632;
    --ink: #E6EDF3; --ink-2: #8B97A7; --line: #2A3342;
    --accent: #7FB0E8; --accent-soft: #1A2836;
    --accent-2: #9D8CFF; --accent-2-soft: #241F3D;
    --gold: #CBA84D; --gold-soft: #2A2415;
    --good: #57B583; --good-soft: #16281E;
    --bad: #E0705F; --bad-soft: #33201C;
    --py-kw: #7FB0E8; --py-str: #57B583; --py-num: #CBA84D; --py-com: #9AA49E;
    --python-blue: #4B8BBE; --python-yellow: #FFD43B;
  }
}

* { box-sizing: border-box; }
body {
  margin: 0;
  background: radial-gradient(1200px 600px at 70% -10%, var(--bg-glow) 0%, var(--bg) 60%) fixed;
  color: var(--ink);
  font: 16px/1.6 -apple-system, "Segoe UI", Roboto, Ubuntu, sans-serif;
  min-height: 100vh;
  -webkit-font-smoothing: antialiased;
}
button { font: inherit; color: inherit; cursor: pointer; }
h2 {
  font-size: .92rem; margin: 2.2rem 0 .8rem; color: var(--ink-2);
  font-weight: 650; text-transform: uppercase; letter-spacing: .6px;
}
.muted { color: var(--ink-2); font-size: .88rem; }
.hidden { display: none !important; }

/* --- cabecera --- */
header {
  display: flex; align-items: center; gap: 1.2rem;
  padding: .8rem 1.4rem; border-bottom: 1px solid var(--line);
  position: sticky; top: 0; z-index: 10;
  background: color-mix(in srgb, var(--bg) 85%, transparent);
  backdrop-filter: blur(8px);
}
.brand { font-weight: 700; font-size: 1.1rem; white-space: nowrap; }
.brand-sub { font-size: .72rem; font-weight: 550; color: var(--ink-2); margin-left: .55rem; }
@media (max-width: 760px) { .brand-sub { display: none; } }

/* título del curso en el panel */
.course-title { margin: 0 0 1.4rem; }
.course-title h1 { margin: 0; font-size: 1.4rem; font-weight: 700; letter-spacing: -.01em; }
/* «Python» con los colores oficiales del logo */
.py-b { color: var(--python-blue); }
.py-y { color: var(--python-yellow); }
.course-title p { margin: .15rem 0 0; color: var(--ink-2); font-size: .92rem; }
.py-logo { height: 1.15em; vertical-align: -.18em; margin-left: .1rem; }
nav { display: flex; gap: .3rem; }
nav button {
  border: none; background: none; padding: .5rem .9rem; border-radius: 10px;
  color: var(--ink-2); font-weight: 550; font-size: .95rem;
}
nav button:hover { color: var(--ink); background: var(--surface); }
nav button.active { background: var(--accent-soft); color: var(--accent); }
nav button:focus-visible, button:focus-visible { outline: 2px solid var(--accent); outline-offset: 2px; }
.hud { margin-left: auto; display: flex; gap: .6rem; align-items: center; font-size: .85rem; font-weight: 600; }
.hud-rank { background: var(--gold-soft); color: var(--gold); padding: .25rem .7rem; border-radius: 100px; }

/* La carrera se viste: cada rango, un traje más espectacular (tier 1..5) */
.hud-rank.tier-1 { background: var(--surface-2); color: var(--ink-2); box-shadow: inset 0 0 0 1px var(--line); }
.hud-rank.tier-2 { background: var(--accent-soft); color: var(--accent); box-shadow: inset 0 0 0 1px var(--accent); }
.hud-rank.tier-3 { background: var(--accent-2-soft); color: var(--accent-2); box-shadow: inset 0 0 0 1px var(--accent-2); }
.hud-rank.tier-4 {
  background: linear-gradient(90deg, var(--accent), var(--accent-2)); color: #fff;
  box-shadow: 0 0 10px color-mix(in srgb, var(--accent-2) 45%, transparent);
}
.hud-rank.tier-5 {
  background: linear-gradient(110deg, #8A6D1F 0%, #E3B341 30%, #FFF3C4 50%, #E3B341 70%, #8A6D1F 100%);
  background-size: 220% 100%; color: #2A2415; font-weight: 700;
  box-shadow: 0 0 14px color-mix(in srgb, var(--gold) 60%, transparent);
  animation: shimmer 3s linear infinite;
}
@keyframes shimmer { from { background-position: 0% 0; } to { background-position: 220% 0; } }

.rank-big.tier-1 { color: var(--ink-2); }
.rank-big.tier-2 { color: var(--accent); }
.rank-big.tier-3 { color: var(--accent-2); }
.rank-big.tier-4 {
  background: linear-gradient(90deg, var(--accent), var(--accent-2));
  -webkit-background-clip: text; background-clip: text; color: transparent;
}
.rank-big.tier-5 {
  background: linear-gradient(110deg, var(--gold) 0%, #F1D27A 40%, #FFF3C4 50%, #F1D27A 60%, var(--gold) 100%);
  background-size: 220% 100%;
  -webkit-background-clip: text; background-clip: text; color: transparent;
  animation: shimmer 3s linear infinite;
}
@media (prefers-reduced-motion: reduce) {
  .hud-rank.tier-5, .rank-big.tier-5 { animation: none; }
}
.hud-level { background: var(--accent-2); color: #fff; padding: .25rem .7rem; border-radius: 8px; }
.hud-streak { color: var(--gold); }

main { max-width: 940px; margin: 0 auto; padding: 1.6rem 1.2rem 4rem; }
.view { display: none; animation: fade .25s ease; }
.view.active { display: block; }
@keyframes fade { from { opacity: 0; transform: translateY(6px); } to { opacity: 1; } }

/* --- panel --- */
.cards { display: grid; grid-template-columns: repeat(auto-fit, minmax(140px, 1fr)); gap: .9rem; }
.card {
  background: var(--surface); border: 1px solid var(--line);
  border-radius: var(--radius); padding: 1.1rem;
}
.card .big { font-size: 2rem; font-weight: 700; font-variant-numeric: tabular-nums; line-height: 1.2; }
#d-xp { font-size: 1.5rem; padding-top: .3rem; }  /* n/total no cabe a 2rem */
#d-rank { font-size: 1.3rem; padding-top: .35rem; overflow-wrap: anywhere; }  /* «Junior Developer» / «Code Reviewer …» no caben a 2rem */
.card .lbl { font-size: .82rem; color: var(--ink-2); margin-bottom: .2rem; }
.card .sublbl { font-size: .82rem; color: var(--ink-2); margin-top: .2rem; }
.bar { height: 6px; background: var(--surface-2); border-radius: 99px; margin-top: .7rem; overflow: hidden; }
.bar-fill { height: 100%; background: linear-gradient(90deg, #234E6F 0%, #306998 85%); border-radius: 99px; transition: width .5s; }

.structs { display: grid; grid-template-columns: repeat(auto-fill, minmax(220px, 1fr)); gap: .55rem 1rem; margin-top: .6rem; }
.struct { display: grid; grid-template-columns: 7.2rem 1fr 2.6rem; gap: .5rem; align-items: center; font-size: .84rem; }
.struct .sname { font-family: var(--mono); font-size: .78rem; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.struct .sbar { height: 8px; background: var(--surface-2); border: 1px solid var(--line); border-radius: 99px; overflow: hidden; }
.struct .sbar div { height: 100%; border-radius: 99px; }
.struct .spct { text-align: right; font-variant-numeric: tabular-nums; color: var(--ink-2); }

/* aviso de repasos pendientes en el menú */
.nav-badge { color: var(--bad); font-weight: 800; margin-left: .35rem; }
.card.clickable { cursor: pointer; transition: .12s; }
.card.clickable:hover, .card.clickable:focus-visible { border-color: var(--accent); transform: translateY(-2px); }

/* carrera del programador: barra de rangos con posición actual */
#career { margin-top: .6rem; }
.career-info { display: flex; justify-content: space-between; align-items: baseline; gap: 1rem; margin-bottom: .9rem; }
.career-info .ci-now { font-weight: 700; font-size: 1.05rem; }
.career-info .ci-xp { font-family: var(--mono); font-weight: 700; color: var(--accent); font-variant-numeric: tabular-nums; }
.career-track { position: relative; height: 10px; background: var(--surface-2); border: 1px solid var(--line); border-radius: 99px; margin: 0 2.2rem; }
.career-fill { position: absolute; inset: 0 auto 0 0; background: linear-gradient(90deg, #234E6F 0%, #306998 85%); border-radius: 99px; }
.career-dot { position: absolute; top: 50%; width: 14px; height: 14px; border-radius: 50%;
  background: var(--surface); border: 2px solid var(--line); transform: translate(-50%, -50%); }
.career-dot.on { background: var(--accent); border-color: var(--accent); }
.career-you { position: absolute; top: 50%; width: 22px; height: 22px;
  transform: translate(-50%, -50%);
  filter: drop-shadow(0 0 3px color-mix(in srgb, var(--bg) 70%, #000)); }
.career-labels { position: relative; height: 2.6rem; margin: .5rem 2.2rem 0; font-size: .72rem; color: var(--ink-2); }
.career-lab { position: absolute; top: 0; transform: translateX(-50%); text-align: center; white-space: nowrap; line-height: 1.25; }
.career-lab.on { color: var(--ink); font-weight: 600; }
.career-lab i { display: block; font-style: normal; font-family: var(--mono); font-size: .68rem; color: var(--ink-2); }
.career-next { margin: .3rem 0 0; font-size: .88rem; color: var(--ink-2); }
.career-next b { color: var(--ink); font-variant-numeric: tabular-nums; }
@media (max-width: 560px) { .career-labels { font-size: .62rem; } }

.achs { display: grid; grid-template-columns: repeat(auto-fill, minmax(190px, 1fr)); gap: .7rem; margin-top: .6rem; }
.ach {
  background: var(--surface); border: 1px solid var(--line); border-radius: 12px;
  padding: .8rem; display: flex; gap: .65rem; align-items: center; opacity: .4;
}
.ach.on {
  opacity: 1; border-color: var(--gold);
  box-shadow: 0 0 0 1px color-mix(in srgb, var(--gold) 25%, transparent) inset;
}
.ach .ico { font-size: 1.5rem; flex: none; }
.ach .nm { font-weight: 650; font-size: .88rem; }
.ach .ds { color: var(--ink-2); font-size: .76rem; }

/* --- curso --- */
.gate-banner {
  display: flex; align-items: center; gap: .6rem; flex-wrap: wrap;
  border: 1px solid var(--bad); background: color-mix(in srgb, var(--bad) 8%, var(--bg));
  border-radius: 12px; padding: .8rem 1.1rem; margin: 0 0 1rem; font-size: .93rem;
}
.gate-banner .primary { margin: 0 0 0 auto; padding: .45rem .9rem; font-size: .85rem; }

/* estado del repaso */
.review-info {
  border: 1px solid var(--line); background: var(--surface);
  border-radius: 12px; padding: .7rem 1rem; margin-bottom: .6rem; font-size: .92rem;
}
.review-how { max-width: 72ch; margin: 0 0 1rem; }
/* resumen de la sesión: qué le pasó a cada pregunta repasada (20-ago) */
.review-recap { margin: 0 0 .8rem; padding-left: 1.1rem; font-size: .9rem; line-height: 1.7; }
.review-recap code { font-size: .82em; color: var(--ink-2); }

.block-h { margin: 1.8rem 0 .7rem; font-weight: 650; font-size: .85rem; color: var(--ink-2); text-transform: uppercase; letter-spacing: .6px; }
.module {
  background: var(--surface); border: 1px solid var(--line);
  border-radius: var(--radius); padding: 1rem 1.2rem; margin-bottom: .8rem;
}
.module.locked { opacity: .55; }
/* módulo completado: borde azul (patrón «superada») + acento suave en la cabecera */
.module.done { border-color: var(--accent); box-shadow: inset 3px 0 0 var(--accent); }
.module-h { display: flex; gap: .7rem; align-items: baseline; }
.module-h .upass.mod-done { margin-left: .3rem; }
.module-h.toggler { cursor: pointer; user-select: none; }
.module-h.toggler:hover .mname { color: var(--accent); }
.module-h .chev { color: var(--ink-2); display: inline-block; transition: transform .15s; font-size: .85rem; }
.module-h .chev.open { transform: rotate(90deg); }
.module-h .mid { font-family: var(--mono); color: var(--accent); font-weight: 700; font-size: .85rem; }
.module-h .mname { font-weight: 650; font-size: 1.02rem; }
.module-h .mtag { margin-left: auto; font-size: .76rem; color: var(--ink-2); }
.unit { margin-top: .85rem; padding-top: .85rem; border-top: 1px solid var(--line); }
.unit-h { display: flex; gap: .6rem; align-items: baseline; font-size: .93rem; }
.unit-h .uname { font-weight: 600; }
.unit-h .upass {
  border: 1px solid var(--accent); color: var(--ink); font-size: .76rem; font-weight: 600;
  padding: .1rem .55rem; border-radius: 100px;
}
.unit.locked { opacity: .5; }
.steps-row { display: flex; flex-wrap: wrap; gap: .45rem; margin-top: .55rem; }
.step-chip {
  border: 1px solid var(--line); background: var(--surface-2); border-radius: 100px;
  padding: .3rem .8rem; font-size: .82rem; display: flex; gap: .4rem; align-items: center;
  transition: .12s;
}
.step-chip:not(:disabled):hover { border-color: var(--accent); color: var(--accent); transform: translateY(-2px); }
.step-chip:disabled { opacity: .45; cursor: not-allowed; }
.step-chip.passed { background: var(--surface-2); color: var(--ink); border-color: var(--accent); }
.step-chip .n { font-variant-numeric: tabular-nums; color: var(--ink-2); font-size: .74rem; }
/* fallos sin curar: mismo rojo que el «!» de repasos pendientes (19-ago) */
.step-chip .n.miss { color: var(--bad); }
.step-chip .ck, .upass .ck, .lesson-btn .ck { color: var(--python-yellow); font-weight: 700; }
.step-chip.passed:not(:disabled):hover { border-color: var(--accent); color: var(--accent); }
.audit-btn {
  margin-top: .85rem; border: 1px solid var(--accent); color: var(--accent);
  background: none; border-radius: 10px; padding: .45rem 1rem; font-size: .86rem; font-weight: 600;
  transition: .12s;
}
.audit-btn:not(:disabled):hover { background: var(--accent-soft); transform: translateY(-2px); }
.audit-btn:disabled { opacity: .4; border-color: var(--line); color: var(--ink-2); }
.audit-row { display: flex; align-items: center; gap: .6rem; }
.audit-row .audit-btn { margin-top: .85rem; }
.audit-row .upass {
  border: 1px solid var(--accent); color: var(--ink); font-size: .76rem; font-weight: 600;
  padding: .1rem .55rem; border-radius: 100px; margin-top: .85rem;
}

/* --- estudio --- */
.study-head { display: flex; align-items: center; gap: .8rem; margin-bottom: 1rem; }
.study-head h2 { margin: 0; }
#review-theory-btn { margin-left: auto; }
.crumb { font-size: .88rem; color: var(--ink-2); flex: 1; }
.ghost { border: 1px solid var(--line); background: none; border-radius: 10px; padding: .4rem .8rem; font-size: .86rem; }
.ghost:hover { border-color: var(--accent); }
.replay-choice { display: flex; gap: .6rem; flex-wrap: wrap; align-items: stretch; margin-top: 1rem; }
.replay-choice .primary, .replay-choice .ghost { margin: 0; padding: .65rem 1.3rem; font-size: .93rem; }
/* en una fila de acciones, el ghost calca las métricas del primary (misma caja) */
.steps-row .ghost { margin-top: 1rem; padding: .65rem 1.3rem; font-size: .93rem; }
.timer { font-family: var(--mono); font-weight: 700; font-variant-numeric: tabular-nums; background: var(--surface-2); border: 1px solid var(--line); padding: .3rem .7rem; border-radius: 8px; }
.timer.low { color: var(--bad); border-color: var(--bad); }

/* --- audita (cierre cronometrado con código open-source) --- */
.attrib {
  display: inline-flex; align-items: center; gap: .4rem;
  font-size: .8rem; color: var(--ink-2);
  background: var(--surface-2); border: 1px solid var(--python-blue);
  border-radius: 100px; padding: .2rem .7rem; margin-bottom: .6rem;
}
.attrib strong { color: var(--python-blue); }
.item-card.sub-ok { border-color: var(--good); }   /* solo borde */
.item-card.sub-bad { border-color: var(--bad); }   /* solo borde */
.sub-sol { border-top: 1px solid var(--line); margin-top: .9rem; padding-top: .9rem; font-size: .93rem; }
.sub-sol .sub-ans { color: var(--accent); font-weight: 600; }
.shot-warn {
  border: 1px solid var(--gold); border-radius: 10px;
  background: var(--gold-soft); padding: .7rem .9rem;
}

/* --- competitivo: clasificación con 4 niveles bien diferenciados --- */
.comp-head { margin-bottom: 1rem; }
.comp-badge {
  display: inline-block; font-size: 1.35rem; font-weight: 800;
  padding: .45rem 1.2rem; border-radius: 100px; margin: .3rem 0 .6rem;
}
.comp-badge.tier-none { background: var(--surface-2); color: var(--ink-2); box-shadow: inset 0 0 0 1px var(--line); }
.comp-badge.tier-plata, .comp-medal.tier-plata {
  background: linear-gradient(110deg, #7E8899 0%, #C8D0DA 50%, #7E8899 100%);
  color: #1B2027; box-shadow: 0 0 8px color-mix(in srgb, #AEB9C6 45%, transparent);
}
.comp-badge.tier-oro, .comp-medal.tier-oro {
  background: linear-gradient(110deg, #8A6D1F 0%, #E3B341 55%, #8A6D1F 100%);
  color: #2A2415; box-shadow: 0 0 10px color-mix(in srgb, var(--gold) 55%, transparent);
}
.comp-badge.tier-gm, .comp-medal.tier-gm {
  background: linear-gradient(90deg, var(--accent), var(--accent-2)); color: #fff;
  box-shadow: 0 0 12px color-mix(in srgb, var(--accent-2) 55%, transparent);
}
.comp-badge.tier-hof, .comp-medal.tier-hof {
  background: linear-gradient(110deg, #8A6D1F 0%, #E3B341 30%, #FFF3C4 50%, #E3B341 70%, #8A6D1F 100%);
  background-size: 220% 100%; color: #2A2415;
  box-shadow: 0 0 16px color-mix(in srgb, var(--gold) 70%, transparent);
  animation: shimmer 3s linear infinite;
}
@media (prefers-reduced-motion: reduce) { .comp-badge.tier-hof { animation: none; } }
.comp-rules { max-width: 72ch; }
.comp-list { display: flex; flex-direction: column; gap: .55rem; }
.comp-row {
  display: flex; justify-content: space-between; align-items: center;
  gap: 1rem; padding: .7rem 1rem;
}
.comp-row .mtag { font-family: var(--mono); color: var(--accent); font-size: .8rem; margin-right: .3rem; }
.comp-time { font-variant-numeric: tabular-nums; display: inline-flex; align-items: center; gap: .5rem; white-space: nowrap; }
.comp-medal { font-size: .8rem; font-weight: 700; padding: .15rem .6rem; border-radius: 100px; }
.comp-shot { color: var(--accent); font-weight: 600; }
.comp-burned { color: var(--bad); }
@media (max-width: 560px) { .comp-row { flex-direction: column; align-items: flex-start; gap: .3rem; } }

/* teoría — panel destacado (patrón de la familia) */
.theory {
  border: 1px solid var(--python-blue);
  background: color-mix(in srgb, var(--python-blue) 8%, var(--bg));
  border-radius: 12px; padding: 1.1rem 1.2rem; margin-bottom: 1rem;
  font-size: .95rem; line-height: 1.55; white-space: pre-wrap; animation: fade .2s ease;
}
.theory h3 { margin: 0 0 .6rem; font-size: 1.02rem; white-space: normal; color: var(--python-blue); }
.theory b { color: var(--python-yellow); font-weight: 650; }
.theory .th-sub { color: var(--python-blue); font-weight: 700; font-size: 1.02rem; }
.theory code {
  font-family: var(--mono); font-size: .85em; white-space: pre;
  background: var(--bg);
  border: 1px solid color-mix(in srgb, var(--python-blue) 45%, transparent);
  padding: .08em .35em; border-radius: 5px;
}

.item-card {
  background: var(--surface); border: 1px solid var(--line);
  border-radius: var(--radius); padding: 1.3rem 1.4rem;
}
.item-meta { display: flex; flex-wrap: wrap; gap: .5rem 1rem; align-items: baseline; margin-bottom: .8rem; font-size: .78rem; }
.item-meta .tipo { font-family: var(--mono); font-weight: 600; color: var(--accent); background: var(--accent-soft); padding: .15rem .6rem; border-radius: 100px; }
.item-meta .nivel { color: var(--gold); }
.item-meta .usa { font-family: var(--mono); color: var(--ink-2); }
.item-meta .count { margin-left: auto; color: var(--ink-2); font-variant-numeric: tabular-nums; }
.item-meta .count.fail { color: var(--bad); font-weight: 700; }
.item-meta .fail-badge { color: var(--bad); border: 1px solid var(--bad); border-radius: 100px; padding: .15rem .6rem; font-weight: 700; }
.review-fail-hint { border: 1px solid var(--bad); color: var(--bad); border-radius: 10px; padding: .5rem .85rem; margin-bottom: .9rem; font-size: .9rem; }
.pregunta { font-size: 1.03rem; line-height: 1.5; margin: .9rem 0; }
/* encargo del audita: contexto sobre cada sub-reto */
.audita-encargo {
  border-left: 3px solid var(--python-blue);
  background: color-mix(in srgb, var(--python-blue) 6%, var(--bg));
  padding: .5rem .8rem; border-radius: 8px; margin: .6rem 0 .2rem;
  font-size: .9rem; color: var(--ink-2);
}
.pregunta code, .opt code, .cand code, .why code {
  font-family: var(--mono); font-size: .86em; background: var(--surface-2);
  padding: .08em .35em; border-radius: 5px; white-space: pre;
}
.criterio-chip { display: inline-block; background: var(--gold-soft); color: var(--gold); border-radius: 100px;
  padding: .1rem .6rem; font-size: .78rem; font-weight: 600; margin-left: .4rem; }

/* código */
.pycode {
  font-family: var(--mono); font-size: .84rem; line-height: 1.55; background: var(--bg);
  border: 1px solid var(--line); border-radius: 10px; padding: .6rem 0; overflow-x: auto; margin: .7rem 0;
}
.cl { display: flex; padding: 0 .9rem; white-space: pre; }
.cl .ln { width: 2rem; flex: none; color: var(--ink-2); user-select: none; text-align: right; padding-right: .9rem; }
.pycode.clickable .cl { cursor: pointer; }
.pycode.clickable .cl:hover { background: var(--accent-soft); }
.cl.sel { background: var(--accent-soft); }
.cl.hit { background: var(--good-soft); }
.cl.miss { background: var(--bad-soft); }
.tok-kw { color: var(--py-kw); font-weight: 600; }
.tok-str { color: var(--py-str); }
.tok-num { color: var(--py-num); }
.tok-com { color: var(--py-com); font-style: italic; }

.compare-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(230px, 1fr)); gap: .7rem; }
/* min-width:0 — sin él, `1fr` no baja del ancho de la línea más larga y las
   columnas desbordan la tarjeta en vez de repartirse el ancho a partes iguales */
.compare-grid > div { min-width: 0; }
/* apilado por JS (fitCompareGrid) cuando alguna línea no cabe en su columna */
.compare-grid.stacked { grid-template-columns: 1fr; }
.compare-grid .cg-label { font-family: var(--mono); font-size: .76rem; font-weight: 700; color: var(--accent); margin: .2rem 0; }

/* opciones */
.opts { display: grid; gap: .55rem; margin-top: .9rem; }
.opt {
  display: flex; gap: .7rem; align-items: baseline; text-align: left;
  border: 1px solid var(--line); background: var(--surface-2); border-radius: 10px;
  padding: .8rem 1rem; font-size: .93rem; transition: .12s;
}
.opt:not(:disabled):hover { border-color: var(--accent); }
.opt .letter { font-family: var(--mono); font-weight: 700; color: var(--accent); }
.opt.good { border-color: var(--good); }  /* solo borde: sin relleno verde */
.opt.good .letter { color: var(--good); }
.opt.badpick { border-color: var(--bad); }  /* solo borde */
.opt.badpick .letter { color: var(--bad); }
.opt:disabled { cursor: default; }

/* candidatos (veredicto) */
.cands { display: grid; gap: .55rem; margin-top: .9rem; }
.cand { display: flex; gap: .7rem; align-items: baseline; border: 1px solid var(--line); background: var(--surface-2);
  border-radius: 10px; padding: .7rem 1rem; font-size: .91rem; cursor: pointer; transition: .12s; }
.cand:hover { border-color: var(--accent); }
.cand input { accent-color: var(--accent); }
.cand .num { font-family: var(--mono); font-weight: 700; color: var(--accent); }
.cand.good { border-color: var(--good); background: var(--good-soft); }
.cand.badpick { border-color: var(--bad); background: var(--bad-soft); }
.cand.missed { border-color: var(--gold); background: var(--gold-soft); }

.primary {
  margin-top: 1rem; border: none;
  /* combo D (elegido 16-ago): azul Python (original→oscuro) con subrayado amarillo */
  background: linear-gradient(90deg, #234E6F 0%, #306998 85%); color: #fff;
  box-shadow: inset 0 -3px 0 #FFD43B;
  border-radius: 10px; padding: .65rem 1.3rem; font-weight: 650; font-size: .93rem;
}
.primary:hover { filter: brightness(1.08); }

/* feedback */
.feedback { margin-top: 1.1rem; border: 1px solid var(--line); border-radius: 12px; padding: 1rem 1.1rem; font-size: .93rem; line-height: 1.5; }
.feedback.ok { border-color: var(--good); }  /* solo borde */
.feedback.ko { border-color: var(--bad); }  /* solo borde */
.feedback .verdict { font-weight: 700; }
/* pre-line para que el descompón separe en párrafos sus DOS resoluciones
   —la del plan y la de la traducción— cuando se muestran juntas. */
.feedback .why { margin-top: .5rem; white-space: pre-line; }
.feedback .why code { background: color-mix(in srgb, var(--ink) 8%, transparent); }
.sello { display: inline-block; margin-top: .7rem; font-family: var(--mono); font-size: .72rem;
  background: var(--gold-soft); color: var(--gold); border-radius: 6px; padding: .25rem .6rem; font-weight: 600; }

/* resultado auditoría */
.audit-score { text-align: center; padding: 2rem 0; }
.audit-score .pct { font-size: 3.5rem; font-weight: 800; font-variant-numeric: tabular-nums; }
.audit-score.pass .pct { color: var(--good); }
.audit-score.fail .pct { color: var(--bad); }

/* toasts */
#toast-wrap { position: fixed; bottom: 1.2rem; left: 50%; transform: translateX(-50%); display: flex; flex-direction: column; gap: .5rem; z-index: 50; align-items: center; }
.toast {
  background: var(--surface-2); border: 1px solid var(--gold); color: var(--ink);
  border-radius: 10px; padding: .7rem 1.1rem; font-size: .88rem;
  box-shadow: 0 8px 24px color-mix(in srgb, #000 40%, transparent); animation: pop .3s ease;
}
.toast.xp { border-color: var(--accent); }
/* logro desbloqueado: tarjeta grande con el lenguaje dorado de .ach (19-ago) */
.toast.ach-toast {
  display: flex; align-items: center; gap: .9rem; padding: .9rem 1.25rem;
  border: 1px solid var(--gold); border-radius: var(--radius);
  background: linear-gradient(100deg, var(--gold-soft) 0%, var(--surface-2) 65%);
  box-shadow: 0 12px 32px color-mix(in srgb, #000 45%, transparent),
              inset 0 0 22px color-mix(in srgb, var(--gold) 20%, transparent);
  max-width: min(92vw, 30rem); animation: achpop .45s cubic-bezier(.2, .9, .3, 1.35);
}
.toast.ach-toast .ach-ico { font-size: 2rem; line-height: 1; }
.toast.ach-toast .ach-body { display: flex; flex-direction: column; }
.toast.ach-toast .ach-kicker {
  font-size: .66rem; letter-spacing: .12em; text-transform: uppercase;
  color: var(--gold); font-weight: 800;
}
.toast.ach-toast .ach-name { font-size: 1.02rem; font-weight: 700; color: var(--ink); }
.toast.ach-toast .ach-desc { font-size: .8rem; color: var(--ink-2); margin-top: .1rem; }
@keyframes pop { from { opacity: 0; transform: translateY(10px) scale(.95); } to { opacity: 1; } }
@keyframes achpop { from { opacity: 0; transform: translateY(18px) scale(.9); } to { opacity: 1; } }

@media (prefers-reduced-motion: reduce) {
  .bar-fill, .toast, .view, .theory, .step-chip, .audit-btn, .opt, .cand { transition: none; animation: none; }
  .step-chip:not(:disabled):hover, .audit-btn:not(:disabled):hover { transform: none; }
}
@media (max-width: 640px) {
  header { flex-wrap: wrap; }
  .hud { width: 100%; justify-content: flex-end; }
}

/* --- M00: manipulables (ordena / clasifica / etiqueta) --- */
.lesson-btn {
  border: 1px solid var(--accent); background: var(--surface-2); color: var(--accent);
  border-radius: 100px; padding: .35rem .95rem; font-size: .84rem; font-weight: 600;
  display: inline-flex; gap: .45rem; align-items: center; transition: .12s;
}
.lesson-btn:not(:disabled):hover { background: var(--accent-soft); transform: translateY(-2px); }
.lesson-btn:disabled { opacity: .45; cursor: not-allowed; border-color: var(--line); color: var(--ink-2); }
.lesson-btn.done { background: var(--surface-2); color: var(--ink); border-color: var(--accent); }
.lesson-btn.done:not(:disabled):hover { border-color: var(--accent); color: var(--accent); background: var(--accent-soft); }
.lesson-btn .n { font-variant-numeric: tabular-nums; color: var(--ink-2); font-size: .74rem; }

/* ordena (Parsons): lista reordenable */
.ord-list { display: flex; flex-direction: column; gap: .45rem; margin: .9rem 0; }
.ord-block {
  display: flex; gap: .6rem; align-items: center; cursor: grab;
  background: var(--surface-2); border: 1px solid var(--line); border-radius: 10px;
  padding: .55rem .85rem; font-family: var(--mono); font-size: .85rem; transition: border-color .12s;
}
.ord-block:hover { border-color: var(--accent); }
.ord-block .grip { color: var(--ink-2); user-select: none; }
.ord-block .ord-code { white-space: pre; overflow-x: auto; }
.ord-block.dragging { opacity: .5; border-color: var(--accent); }
.ord-block.ok { border-color: var(--good); cursor: default; }
.ord-block.ko { border-color: var(--bad); cursor: default; }

/* descompón: zona de descarte — lo que no pertenece al programa (21-ago).
   Mismo lenguaje que las zonas de drop de M00: borde discontinuo que se
   ilumina en accent al arrastrar encima. */
.ord-trash {
  display: flex; flex-direction: column; gap: .45rem;
  min-height: 3.2rem; margin: -.35rem 0 .9rem;
  padding: .55rem; border: 1px dashed var(--line); border-radius: 10px;
  background: var(--bg);
}
.ord-trash.over { border-color: var(--accent); background: var(--accent-soft); }
.ord-trash-lab { font-size: .78rem; color: var(--ink-2); }
.ord-trash .ord-block { opacity: .75; }
.ord-trash .ord-block:hover { opacity: 1; }

/* construye: esqueleto con huecos + bandeja de fichas (25-ago).
   Misma gramática que los manipulables de M00 y la zona de descarte del
   descompón: fichas sobre --surface-2 con borde --line, zonas de drop con
   borde discontinuo que se ilumina en accent al arrastrar. La bandeja se ve
   SIEMPRE — sobran fichas por diseño. Corrección SOLO-BORDE por FILA: la
   línea entera en verde o rojo; las fichas nunca se rellenan de color. */
.cst { display: flex; flex-direction: column; gap: .6rem; margin: .9rem 0; }
.cst-skel {
  display: flex; flex-direction: column; gap: .25rem;
  background: var(--bg); border: 1px solid var(--line); border-radius: 10px;
  padding: .6rem .5rem; overflow-x: auto;
}
.cst-row {
  display: flex; align-items: center; gap: .55rem;
  border: 1px solid transparent; border-radius: 8px; padding: .22rem .35rem;
}
.cst-ln {
  font-family: var(--mono); font-size: .78rem; color: var(--ink-2);
  user-select: none; min-width: 1.2rem; text-align: right; flex: none;
}
.cst-huecos { display: flex; flex-wrap: wrap; gap: .35rem; }
.cst-slot {
  min-width: 3.6rem; min-height: 2.15rem; display: inline-flex;
  align-items: center; justify-content: center;
  border: 1px dashed var(--line); border-radius: 8px; padding: .2rem;
  transition: border-color .12s;
}
.cst-slot.over { border-color: var(--accent); background: var(--accent-soft); }
.cst-row.ok { border-color: var(--good); }
.cst-row.ko { border-color: var(--bad); }
.cst-tray {
  display: flex; flex-wrap: wrap; gap: .45rem; min-height: 2.9rem;
  padding: .55rem; border: 1px dashed var(--line); border-radius: 10px;
  background: var(--bg);
}
.cst-tray.over { border-color: var(--accent); background: var(--accent-soft); }
.cst-tok {
  cursor: grab; background: var(--surface-2); border: 1px solid var(--line);
  border-radius: 8px; padding: .3rem .6rem; white-space: pre;
  font-family: var(--mono); font-size: .85rem; transition: border-color .12s;
}
.cst-tok:hover { border-color: var(--accent); }
.cst-tok.dragging { opacity: .5; border-color: var(--accent); }
.cst-slot .cst-tok { cursor: pointer; }
.cst-tok[data-done] { cursor: default; }

/* dificultad superada: los tres días de la escalera, cumplidos (21-ago).
   Fórmula «superada» del sistema: borde accent, texto ink, sin verdes. */
.cured-card {
  display: flex; gap: .8rem; align-items: flex-start;
  background: var(--accent-soft); border: 1px solid var(--accent);
  border-radius: var(--radius); padding: .85rem 1rem; margin: .2rem 0 .9rem;
}
.cured-ico { font-size: 1.7rem; line-height: 1; flex: none; }
.cured-body { display: flex; flex-direction: column; gap: .15rem; }
.cured-kicker { font-size: .72rem; letter-spacing: .06em; text-transform: uppercase; color: var(--accent); font-weight: 700; }
.cured-text { color: var(--ink); font-size: .9rem; }
.cured-text strong { color: var(--python-yellow); }

/* clasifica: fichas a columnas */
.clf { display: grid; gap: .8rem; margin: .9rem 0; }
.clf-pool { display: flex; flex-wrap: wrap; gap: .45rem; min-height: 2.8rem;
  padding: .55rem; border: 1px dashed var(--line); border-radius: 10px; }
.clf-pool.over, .clf-drop.over { border-color: var(--accent); background: var(--accent-soft); }
.clf-cols { display: grid; grid-template-columns: repeat(auto-fit, minmax(120px, 1fr)); gap: .6rem; }
.clf-col { background: var(--surface-2); border: 1px solid var(--line); border-radius: 10px; padding: .55rem; }
.clf-h { font-family: var(--mono); font-size: .76rem; font-weight: 700; color: var(--accent);
  text-align: center; margin-bottom: .4rem; }
.clf-drop { min-height: 2.8rem; display: flex; flex-wrap: wrap; gap: .35rem;
  border: 1px dashed var(--line); border-radius: 8px; padding: .35rem; }
.clf-chip { cursor: grab; background: var(--bg); border: 1px solid var(--line); border-radius: 8px;
  padding: .35rem .65rem; font-family: var(--mono); font-size: .83rem; transition: border-color .12s; }
.clf-chip:hover { border-color: var(--accent); }
.clf-chip.dragging { opacity: .5; }
.clf-chip.ok { border-color: var(--good); cursor: default; }
.clf-chip.ko { border-color: var(--bad); cursor: default; }

/* etiqueta: paleta a huecos */
.etq-parts { display: grid; gap: .5rem; margin: .9rem 0 .7rem; }
.etq-part { display: flex; gap: .6rem; align-items: center; flex-wrap: wrap; }
.etq-text { font-family: var(--mono); font-size: .87rem; background: var(--surface-2);
  border: 1px solid var(--line); border-radius: 6px; padding: .28rem .55rem; }
.etq-arrow { color: var(--ink-2); }
.etq-slot { min-width: 9rem; min-height: 2.1rem; display: inline-flex; align-items: center;
  border: 1px dashed var(--line); border-radius: 8px; padding: .28rem .65rem; font-size: .83rem;
  cursor: pointer; color: var(--ink-2); transition: border-color .12s; }
.etq-slot.over { border-color: var(--accent); background: var(--accent-soft); }
.etq-slot.filled { border-style: solid; background: var(--bg); color: var(--ink); font-weight: 600; }
.etq-slot.ok { border-color: var(--good); }
.etq-slot.ko { border-color: var(--bad); }
.etq-palette { display: flex; flex-wrap: wrap; gap: .45rem; }
.etq-lab { cursor: grab; background: var(--gold-soft); color: var(--gold); font-weight: 600;
  border: 1px solid color-mix(in srgb, var(--gold) 30%, transparent); border-radius: 8px;
  padding: .35rem .75rem; font-size: .83rem; }
.etq-lab.dragging { opacity: .5; }

/* --- end-game M18: auditorías en frío (28-ago) --- */
/* La tarjeta de M18 no se despliega: lleva a la lista de las 20 auditorías. */
.cold-mod .module-body { margin-top: .3rem; }
.cold-lead { max-width: 72ch; }
.cold-list { margin-top: .7rem; }
.cold-row .comp-mod { display: flex; align-items: baseline; gap: .5rem; flex-wrap: wrap; }
/* el proyecto auditado solo se enseña con la auditoría ya cerrada */
.cold-proj { font-family: var(--mono); font-size: .76rem; color: var(--ink-2); }
.cold-exp { font-variant-numeric: tabular-nums; color: var(--accent); font-weight: 700; }
.cold-big { font-size: 1.5rem; padding-top: .3rem; }  /* n/total no cabe a 2rem */
.cold-soon { font-size: .82rem; color: var(--ink-2); margin-left: .6rem; }
.cold-hof-kpis { margin-top: .9rem; }
.cold-medal-line { margin: .4rem 0; }
/* «aprobada» es el escalón sin medalla: azul del acento, sin metal */
.comp-medal.tier-aprobada { background: var(--accent-soft); color: var(--accent);
  box-shadow: inset 0 0 0 1px var(--accent); }
/* aviso discreto: la pregunta anterior se entregó pasada de tiempo. Ni una
   palabra sobre si se acertó — eso no se sabe hasta el final. */
.cold-late { border: 1px solid var(--line); border-radius: 10px; color: var(--ink-2);
  padding: .45rem .8rem; margin-bottom: .8rem; font-size: .86rem; }
.cold-hint { margin: 0 0 .6rem; }
/* fallo de un sub-reto en la revisión del end-game: solo-borde, sin relleno */
.sub-sol.sub-bad { border-left: 3px solid var(--bad); padding-left: .8rem; }

/* ANTI-TRAMPAS — SOLO dentro de la vista de examen en frío. Las opciones se
   sirven ofuscadas y solo se lee la que está bajo el cursor; en pantalla
   táctil, la que se toca (el primer toque desvela, el segundo elige). Nada de
   esto aplica al resto de la app. */
#view-coldexam { user-select: none; -webkit-user-select: none; }
#view-coldexam .opt > span:not(.letter),
#view-coldexam .cand > span:not(.num) { filter: blur(5px); transition: filter .1s; }
#view-coldexam .opt:hover > span:not(.letter),
#view-coldexam .opt:focus-visible > span:not(.letter),
#view-coldexam .opt.revealed > span:not(.letter),
#view-coldexam .cand:hover > span:not(.num),
#view-coldexam .cand:focus-within > span:not(.num),
#view-coldexam .cand.revealed > span:not(.num) { filter: none; }
@media (prefers-reduced-motion: reduce) {
  #view-coldexam .opt > span:not(.letter),
  #view-coldexam .cand > span:not(.num) { transition: none; }
}

/* --- web (25-sep): cuenta, entrada, esperas y pago -------------------------
   Todo con clases nuevas: en la app local estos elementos no existen o están
   ocultos, así que no cambia nada de lo que ya se veía. */
.acct-bar {
  display: flex; align-items: center; flex-wrap: wrap; gap: .5rem 1rem;
  max-width: 940px; margin: .7rem auto 0; padding: 0 1.2rem; font-size: .84rem;
}
.acct-bar .acct-name { font-weight: 600; }
.acct-bar .acct-free { color: var(--ink-2); }
.acct-bar .acct-paid {
  color: var(--ink); border: 1px solid var(--accent); border-radius: 100px; padding: .1rem .7rem;
}
.acct-bar .acct-out { margin-left: auto; }
.pay-btn {
  border: 1px solid var(--gold); background: var(--gold-soft); color: var(--gold);
  border-radius: 100px; padding: .2rem .8rem; font-size: .8rem; font-weight: 650;
}
.pay-btn:hover { filter: brightness(1.05); transform: translateY(-1px); }
.pay-btn:disabled { opacity: .5; cursor: progress; transform: none; }
.wait-box { display: inline-flex; align-items: center; flex-wrap: wrap; gap: .4rem .6rem; margin-left: .4rem; }
.wait-lock { color: var(--gold); font-size: .86rem; font-weight: 600; font-variant-numeric: tabular-nums; }
/* unidad que espera: la cabecera (candado y botón de pago) a plena vista */
.unit.locked.waiting { opacity: 1; }
.unit.locked.waiting .uname, .unit.locked.waiting .steps-row { opacity: .5; }
.pay-banner {
  display: flex; align-items: center; flex-wrap: wrap; gap: .6rem;
  max-width: 900px; margin: .9rem auto 0; padding: .8rem 1.1rem;
  border-radius: 12px; border: 1px solid var(--gold); background: var(--gold-soft); font-size: .93rem;
}
.pay-banner.ok { border-color: var(--accent); background: var(--accent-soft); }
.pay-banner .ghost { margin-left: auto; }
.pay-spin {
  width: 1rem; height: 1rem; border-radius: 50%; flex: none;
  border: 2px solid var(--gold); border-right-color: transparent; animation: spin 1s linear infinite;
}
@keyframes spin { to { transform: rotate(360deg); } }
@media (prefers-reduced-motion: reduce) { .pay-spin { animation: none; } }

/* pantalla de entrada (web, sin sesión): solo la marca en la cabecera */
.entry-mode header nav, .entry-mode .hud, .entry-mode #acct-bar { display: none !important; }
#entry-box { max-width: 620px; margin: 0 auto; }
.entry-about { margin-bottom: 1rem; }
.entry-about p { margin: .2rem 0 .6rem; }
.entry-login h2 { margin-top: 0; }
.entry-login .entry-provider {
  display: block; text-align: center; text-decoration: none; margin: .6rem 0 0;
}
.entry-dev { margin-top: 1.2rem; padding-top: 1rem; border-top: 1px dashed var(--line); }
.entry-dev label { display: block; font-size: .9rem; margin: .4rem 0 .6rem; }
.entry-dev input[type=text], .page-form input[type=text] {
  font: inherit; padding: .4rem .6rem; border: 1px solid var(--line); border-radius: 8px;
  background: var(--bg); color: var(--ink); width: 100%; max-width: 20rem;
}
.entry-legal { margin-top: 1rem; }
.entry-legal a, .legal a, .page-form a { color: var(--accent); }

/* páginas del servidor (alta, error, términos, privacidad) con el mismo sistema */
.page-form label { display: flex; gap: .6rem; align-items: flex-start; margin: .8rem 0; font-size: .95rem; }
.page-form input[type=checkbox] { margin-top: .35rem; width: 1.05rem; height: 1.05rem; accent-color: var(--accent); }
.page-alert {
  border: 1px solid var(--bad); background: color-mix(in srgb, var(--bad) 8%, var(--bg));
  border-radius: 12px; padding: .7rem 1rem; margin: 0 0 1rem;
}
.draft-warn {
  border: 1px solid var(--bad); background: color-mix(in srgb, var(--bad) 8%, var(--bg));
  border-radius: 12px; padding: .8rem 1.1rem; font-weight: 700; margin: 0 0 1.2rem;
}
.legal h3 { margin: 1.4rem 0 .4rem; font-size: 1.02rem; }
.legal p, .legal li { font-size: .95rem; }
.legal .todo { background: var(--gold-soft); color: var(--gold); border-radius: 5px; padding: 0 .3em; font-weight: 650; }
.brand-link { color: inherit; text-decoration: none; }