/* ============================================================================
   Mobbyt · portal.css — sistema de diseño del portal público
   Cargar SIEMPRE después de bootstrap.min.css (la cabecera/pie heredados
   siguen dependiendo de Bootstrap 3; este archivo se impone encima).
   ========================================================================== */

/* ── Tokens ──────────────────────────────────────────────────────────────── */
:root {
  /* Azul Mobbyt como base. El cian #009FE3 ya era la marca; lo profundizamos
     en vez de reemplazarlo, y sumamos un ámbar como único color de acción. */
  --mb-ink:        #08243B;
  --mb-deep:       #06283D;
  --mb-deep-2:     #0B3A57;
  --mb-brand:      #009FE3;
  --mb-brand-dark: #0176A6;
  --mb-amber:      #FFC53D;
  --mb-amber-dark: #C88A00;

  --mb-paper:      #EFF3F6;
  --mb-surface:    #FFFFFF;
  --mb-line:       #DCE4EA;
  --mb-text:       #12293D;
  --mb-muted:      #5C7386;

  /* Escala fluida en rem. Todo respeta el tamaño base del navegador:
     si la persona lo sube a 20px por baja visión, el sitio la sigue.
     Nada por debajo de 0.9375rem (15px) en texto corrido. */
  --mb-t-xs:  0.9375rem;                              /* 15px — mínimo absoluto */
  --mb-t-sm:  1rem;                                   /* 16px */
  --mb-t-base: clamp(1.0625rem, 1.02rem + 0.2vw, 1.1875rem);
  --mb-t-lg:  clamp(1.125rem, 1.05rem + 0.35vw, 1.3125rem);
  --mb-t-h3:  clamp(1.125rem, 1.05rem + 0.3vw, 1.25rem);
  --mb-t-h2:  clamp(1.375rem, 1.2rem + 0.7vw, 1.75rem);
  --mb-t-h1:  clamp(2rem, 1.3rem + 3vw, 3.5rem);

  --mb-radius:     10px;
  --mb-radius-lg:  16px;
  --mb-shadow:     0 1px 2px rgba(8,36,59,.06), 0 4px 14px rgba(8,36,59,.06);
  --mb-shadow-up:  0 10px 28px rgba(8,36,59,.16);

  --mb-display: "Space Grotesk", "Segoe UI", system-ui, sans-serif;
  /* Body en fuente del sistema: se dibuja al instante, sin descarga. */
  --mb-body:    system-ui, -apple-system, "Segoe UI", Roboto, "Helvetica Neue", sans-serif;
  --mb-mono:    "Space Mono", ui-monospace, "Courier New", monospace;

  --mb-gap:     18px;
  --mb-maxw:    1280px;
}

/* ── Base ────────────────────────────────────────────────────────────────── */
html.mb { font-size: 100%; }   /* nunca fijar el root: rompe el zoom por preferencia */

body.mb {
  background: var(--mb-paper);
  color: var(--mb-text);
  font-family: var(--mb-body);
  font-size: var(--mb-t-base);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}
.mb h1, .mb h2, .mb h3, .mb h4 { font-family: var(--mb-display); letter-spacing: -.015em; }
/* Links sobre fondo claro */
.mb a { color: var(--mb-brand-dark); }
.mb a:hover, .mb a:focus { color: var(--mb-ink); }

/* Links sobre fondo OSCURO (hero, tarjetas de herramientas).
   Sin esto, el hover heredaba --mb-ink: azul oscuro sobre azul oscuro. */
.mb .mb-hero a,
.mb .mb-hero a:hover,
.mb .mb-hero a:focus { color: #fff; }
.mb .mb-hero a:hover,
.mb .mb-hero a:focus { color: var(--mb-amber); }

.mb a.c-tool,
.mb a.c-tool:hover,
.mb a.c-tool:focus { color: #fff; text-decoration: none; }

.mb :focus-visible {
  outline: 3px solid var(--mb-amber);
  outline-offset: 2px;
  border-radius: 4px;
}

.mb-wrap { max-width: var(--mb-maxw); margin: 0 auto; padding: 0 20px; }

.mb-skip { position: absolute; left: -9999px; }
.mb-skip:focus {
  left: 12px; top: 12px; z-index: 999;
  background: var(--mb-ink); color: #fff;
  padding: .6rem 1rem; border-radius: 6px;
}
.mb-sr { position: absolute !important; width: 1px; height: 1px; padding: 0; margin: -1px;
  overflow: hidden; clip: rect(0,0,0,0); white-space: nowrap; border: 0; }

/* ==========================================================================
   HERO · El PIN es la puerta de entrada
   Todo juego de Mobbyt ES un número. La portada abre con ese número.
   ========================================================================== */
.mb-hero {
  position: relative;
  background: var(--mb-deep);
  background-image:
    radial-gradient(circle at 1px 1px, rgba(255,255,255,.10) 1px, transparent 0);
  background-size: 22px 22px;
  color: #fff;
  overflow: hidden;
}
.mb-hero::after { /* halo de la marca, muy contenido */
  content: "";
  position: absolute; inset: auto -10% -60% 40%;
  height: 420px;
  background: radial-gradient(closest-side, rgba(0,159,227,.35), transparent 70%);
  pointer-events: none;
}
.mb-hero__inner {
  position: relative; z-index: 1;
  max-width: var(--mb-maxw); margin: 0 auto;
  padding: 52px 20px 44px;
  display: grid; gap: 26px;
  grid-template-columns: minmax(0, 1fr);
}
@media (min-width: 980px) {
  .mb-hero__inner { grid-template-columns: 1fr auto; align-items: center; padding: 68px 20px 60px; }
}

.mb-hero__eyebrow {
  font-family: var(--mb-mono);
  font-size: var(--mb-t-sm); letter-spacing: .06em;   /* sin mayúsculas forzadas */
  color: #6FD0FF;
  margin: 0 0 12px;
}
.mb-hero__title {
  margin: 0 0 12px;
  font-size: var(--mb-t-h1);
  font-weight: 700; line-height: 1.05; color: #fff;
}
.mb-hero__title em { font-style: normal; color: var(--mb-amber); }
.mb-hero__sub { margin: 0; max-width: 46ch; color: #D5E7F2; font-size: var(--mb-t-lg); line-height: 1.55; }
.mb-hero__sub a { color: #fff; text-decoration: underline; text-underline-offset: 3px; }

/* — Pinpad — */
.mb-pinpad {
  background: rgba(255,255,255,.055);
  border: 1px solid rgba(255,255,255,.14);
  border-radius: var(--mb-radius-lg);
  padding: 20px;
  backdrop-filter: blur(2px);
}
.mb-pinpad__label {
  display: block; margin-bottom: 10px;
  font-family: var(--mb-body); font-weight: 600;
  font-size: var(--mb-t-sm); color: #BBD9EA;
}
.mb-pinpad__row { display: flex; gap: 10px; align-items: stretch; }

.mb-pin {
  flex: 1 1 auto; min-width: 0;
  font-family: var(--mb-mono);
  font-size: clamp(1.5rem, 1rem + 2vw, 2.15rem);
  font-weight: 700;
  letter-spacing: .18em;
  text-align: center;
  color: #fff;
  background: rgba(4,20,33,.55);
  border: 2px solid rgba(255,255,255,.18);
  border-radius: var(--mb-radius);
  padding: .5rem .75rem;
  width: 100%;
  transition: border-color .18s ease, box-shadow .18s ease;
}
.mb-pin::placeholder { color: rgba(255,255,255,.28); letter-spacing: .18em; }
.mb-pin:focus {
  border-color: var(--mb-brand);
  box-shadow: 0 0 0 4px rgba(0,159,227,.25);
  outline: none;
}
/* saca las flechitas del input number */
.mb-pin::-webkit-outer-spin-button,
.mb-pin::-webkit-inner-spin-button { -webkit-appearance: none; margin: 0; }
.mb-pin { -moz-appearance: textfield; }

.mb-btn {
  display: inline-flex; align-items: center; justify-content: center; gap: .5rem;
  font-family: var(--mb-display); font-weight: 700; font-size: 1.05rem;
  padding: .7rem 1.4rem;
  min-height: 52px;
  border: 0; border-radius: var(--mb-radius);
  cursor: pointer; text-decoration: none; white-space: nowrap;
  transition: transform .12s ease, background-color .18s ease;
}
.mb-btn--play { background: var(--mb-amber); color: #2B1D00; box-shadow: 0 3px 0 var(--mb-amber-dark); }
.mb-btn--play:hover, .mb-btn--play:focus { background: #FFD466; color: #2B1D00; transform: translateY(-1px); }
.mb-btn--play:active { transform: translateY(2px); box-shadow: 0 1px 0 var(--mb-amber-dark); }

.mb-pinpad__hint { margin: 12px 0 0; font-size: var(--mb-t-sm); color: #BBD9EA; min-height: 1.2em; }
.mb-pinpad__hint.is-error { color: var(--mb-amber); }

/* ==========================================================================
   Secciones y carriles
   ========================================================================== */
.mb-main { padding: 34px 0 56px; }

.mb-sec { margin: 0 0 42px; }
.mb-sec__head {
  display: flex; align-items: baseline; justify-content: space-between;
  gap: 16px; margin: 0 0 16px;
  border-bottom: 2px solid var(--mb-line);
  padding-bottom: 10px;
}
.mb-sec__title { margin: 0; font-size: var(--mb-t-h2); font-weight: 700; color: var(--mb-ink); }
.mb-sec__title .dot {
  display: inline-block; width: 10px; height: 10px; border-radius: 50%;
  margin-right: .55rem; background: var(--mb-brand); vertical-align: middle;
}
.mb-sec__title .dot--new   { background: #16A34A; }
.mb-sec__title .dot--track { background: #7C3AED; }
.mb-sec__title .dot--space { background: #E11D48; }
.mb-sec__title .dot--cat   { background: var(--mb-amber-dark); }

.mb-sec__more {
  /* Antes: monoespaciada con tracking. Es un link, no un dato: va en la fuente del texto. */
  font-family: var(--mb-body); font-weight: 600;
  font-size: var(--mb-t-sm);
  text-decoration: underline; text-underline-offset: 3px;
  white-space: nowrap; color: var(--mb-brand-dark);
  padding: 6px 4px;                     /* tap target */
}
.mb-sec__more:hover { text-decoration: underline; }

/* Grilla fluida, sin JS que esconda "tarjetas huérfanas".
   Base = 2 columnas fijas: con auto-fill + minmax(165px) un teléfono de 360px
   no llegaba a meter dos columnas y la grilla colapsaba a una sola. */
.mb-grid {
  display: grid;
  gap: 12px;
  grid-template-columns: repeat(2, minmax(0, 1fr));
}
@media (min-width: 620px)  { .mb-grid { gap: var(--mb-gap); grid-template-columns: repeat(3, minmax(0, 1fr)); } }
@media (min-width: 900px)  { .mb-grid { grid-template-columns: repeat(4, minmax(0, 1fr)); } }
@media (min-width: 1120px) { .mb-grid { grid-template-columns: repeat(5, minmax(0, 1fr)); } }

/* ── Tarjeta de juego ────────────────────────────────────────────────────── */
.c-card {
  display: flex; flex-direction: column;
  background: var(--mb-surface);
  border: 1px solid var(--mb-line);
  border-radius: var(--mb-radius);
  overflow: hidden;
  box-shadow: var(--mb-shadow);
  transition: transform .16s ease, box-shadow .16s ease, border-color .16s ease;
}
.c-card:hover, .c-card:focus-within {
  transform: translateY(-3px);
  box-shadow: var(--mb-shadow-up);
  border-color: var(--mb-brand);
}
.c-card__media { position: relative; display: block; background: #D7E1E8; }
.c-card__media img {
  display: block; width: 100%; aspect-ratio: 16 / 9; object-fit: cover;
}
/* El PIN vive sobre la portada: es el dato que el docente dicta en voz alta. */
.c-card__pin {
  position: absolute; left: 8px; bottom: 8px;
  font-family: var(--mb-mono); font-size: var(--mb-t-sm); font-weight: 700;
  color: #fff; background: rgba(6,40,61,.86);
  padding: 2px 8px; border-radius: 6px;
  backdrop-filter: blur(2px);
}
.c-card__pin-k { color: var(--mb-brand); font-weight: 400; margin-right: 2px; }

.c-card__body { display: flex; flex-direction: column; gap: 4px; padding: 12px 12px 11px; flex: 1 1 auto; }
.c-card__title {
  margin: 0; font-size: var(--mb-t-h3); line-height: 1.3; font-weight: 700;
  display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical;
  overflow: hidden; min-height: 2.5em;
}
.c-card__title a { color: var(--mb-ink); text-decoration: none; }
.c-card__title a:hover { color: var(--mb-brand-dark); }
.c-card__meta { margin: 0; font-size: var(--mb-t-sm); color: var(--mb-muted); white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.c-card__author { color: var(--mb-muted); text-decoration: none; }
.c-card__author:hover { text-decoration: underline; }
.c-card__foot {
  margin: auto 0 0; padding-top: 8px;
  display: flex; align-items: center; justify-content: space-between; gap: 8px;
}
.c-card__cat {
  /* Sin mayúsculas ni monoespaciada: se leía peor y no aportaba nada. */
  font-family: var(--mb-body); font-weight: 600;
  font-size: var(--mb-t-xs);
  color: #0A5E85; background: #E1F1F9;
  padding: 2px 7px; border-radius: 4px;
  white-space: nowrap; overflow: hidden; text-overflow: ellipsis; max-width: 60%;
}
.c-card__stars { color: #8FA3B3; font-size: 1.05rem; letter-spacing: -1px; white-space: nowrap; }
.c-card__stars .star.is-on { color: var(--mb-amber-dark); }

/* ── Tarjeta de herramienta propia (se distingue de un juego a propósito) ── */
.c-tool {
  display: flex; flex-direction: column;
  background: var(--mb-ink); color: #fff;
  border-radius: var(--mb-radius);
  overflow: hidden; text-decoration: none;
  border: 1px solid var(--mb-ink);
  transition: transform .16s ease, box-shadow .16s ease;
}
.c-tool:hover, .c-tool:focus { transform: translateY(-3px); box-shadow: var(--mb-shadow-up); color: #fff; }
.c-tool__media { background: var(--mb-deep-2); padding: 18px; text-align: center; }
.c-tool__media img { width: 100%; max-height: 92px; object-fit: contain; }
.c-tool__body { padding: 12px 14px 14px; }
.c-tool__name { display: block; font-family: var(--mb-display); font-weight: 700; font-size: var(--mb-t-h3); margin: 0 0 5px; color: #fff; }
.c-tool__desc { display: block; margin: 0; font-size: var(--mb-t-sm); color: #C7DCEA; line-height: 1.4; }

/* ── Tarjeta de espacio virtual ──────────────────────────────────────────── */
.c-space { display: flex; flex-direction: column; background: var(--mb-surface);
  border: 1px solid var(--mb-line); border-radius: var(--mb-radius); overflow: hidden;
  box-shadow: var(--mb-shadow); transition: transform .16s ease, box-shadow .16s ease; }
.c-space:hover { transform: translateY(-3px); box-shadow: var(--mb-shadow-up); }
.c-space__media img { display: block; width: 100%; aspect-ratio: 16/9; object-fit: cover; }
.c-space__body { padding: 12px; }
.c-space__name { margin: 0 0 3px; font-family: var(--mb-display); font-weight: 700; font-size: 1rem; }
.c-space__name a { color: var(--mb-ink); text-decoration: none; }
.c-space__desc { margin: 0; font-size: var(--mb-t-sm); color: var(--mb-muted);
  display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden; }

/* ==========================================================================
   results.php · barra de filtros
   ========================================================================== */
.mb-filters {
  background: var(--mb-surface);
  border: 1px solid var(--mb-line);
  border-radius: var(--mb-radius-lg);
  padding: 16px 18px;
  margin-bottom: 26px;
}
.mb-filters__group { display: flex; flex-wrap: wrap; gap: 6px; align-items: center; padding: 7px 0; }
.mb-filters__group + .mb-filters__group { border-top: 1px dashed var(--mb-line); }
.mb-filters__key {
  font-family: var(--mb-body); font-weight: 600;
  font-size: var(--mb-t-sm); color: var(--mb-text);
  min-width: 96px; flex: 0 0 auto;
}
.chip {
  display: inline-block;
  font-size: var(--mb-t-sm); line-height: 1;
  padding: .42rem .68rem;
  border: 1px solid var(--mb-line); border-radius: 999px;
  background: #F7FAFC; color: var(--mb-text);
  text-decoration: none;
  transition: background-color .14s ease, border-color .14s ease, color .14s ease;
}
.chip:hover { background: #E6F4FB; border-color: var(--mb-brand); color: var(--mb-brand-dark); text-decoration: none; }
.chip.is-active {
  background: var(--mb-ink); border-color: var(--mb-ink); color: #fff; font-weight: 600;
}
.chip.is-active:hover { background: var(--mb-deep-2); color: #fff; }

.mb-summary { display: flex; flex-wrap: wrap; gap: 8px; align-items: center; margin-bottom: 18px; }
.mb-count { font-family: var(--mb-display); font-weight: 700; font-size: 1.25rem; color: var(--mb-ink); }
.mb-tag {
  font-family: var(--mb-mono); font-size: .78rem;
  background: #E6F4FB; color: var(--mb-brand-dark);
  padding: 3px 9px; border-radius: 999px;
}

/* ── Vacío ───────────────────────────────────────────────────────────────── */
.mb-empty {
  text-align: center; padding: 56px 20px;
  background: var(--mb-surface); border: 1px dashed var(--mb-line); border-radius: var(--mb-radius-lg);
}
.mb-empty h2 { margin: 0 0 6px; font-size: 1.3rem; color: var(--mb-ink); }
.mb-empty p  { margin: 0 0 18px; color: var(--mb-muted); }

/* ── Paginado ────────────────────────────────────────────────────────────── */
.mb-pager { display: flex; align-items: center; justify-content: center; gap: 14px; margin-top: 32px; }
.mb-pager__btn {
  display: inline-flex; align-items: center; gap: .4rem;
  font-family: var(--mb-display); font-weight: 700;
  padding: .6rem 1.1rem; min-height: 44px;
  background: var(--mb-surface); color: var(--mb-ink);
  border: 1px solid var(--mb-line); border-radius: var(--mb-radius);
  text-decoration: none;
}
.mb-pager__btn:hover { border-color: var(--mb-brand); color: var(--mb-brand-dark); }
.mb-pager__btn[aria-disabled="true"] { opacity: .4; pointer-events: none; }
.mb-pager__pos { font-family: var(--mb-mono); font-size: .9rem; color: var(--mb-muted); }

/* ── Publicidad ──────────────────────────────────────────────────────────── */
.mb-ads { margin: 0 0 34px; text-align: center; min-height: 90px; }

/* ── Accesibilidad: sin movimiento ───────────────────────────────────────── */
@media (prefers-reduced-motion: reduce) {
  * { animation: none !important; transition: none !important; scroll-behavior: auto !important; }
  .c-card:hover, .c-tool:hover, .c-space:hover, .mb-btn--play:hover { transform: none; }
}



/* ==========================================================================
   Tarjeta: toda la superficie es clickeable (Fitts). El link del título se
   estira sobre la tarjeta; el link del autor queda por encima.
   ========================================================================== */
.c-card { position: relative; }
.c-card__title a::after { content: ""; position: absolute; inset: 0; z-index: 1; }
.c-card__author, .c-card__pin { position: relative; z-index: 2; }
.c-card__author { display: inline-block; padding: 2px 0; }

/* ==========================================================================
   Responsive
   ========================================================================== */
@media (max-width: 767px) {
  .mb-wrap { padding: 0 14px; }

  /* En móvil el PIN va PRIMERO: es lo único que la persona vino a hacer.
     El titular explica, pero explicar después de ofrecer la acción. */
  .mb-hero__inner   { padding: 24px 14px 28px; gap: 20px; display: flex; flex-direction: column; }
  .mb-hero__inner > form  { order: 1; }
  .mb-hero__inner > div   { order: 2; }
  .mb-hero__title   { font-size: clamp(1.75rem, 1.3rem + 2.4vw, 2.25rem); }
  .mb-hero__sub     { max-width: none; }
  .mb-hero::after   { display: none; }          /* el halo no aporta y cuesta pintar */

  .mb-pinpad        { padding: 16px; }
  .mb-pinpad__row   { flex-direction: column; gap: 12px; }
  .mb-pin           { letter-spacing: .3em; padding: .75rem .5rem; }
  .mb-btn--play     { width: 100%; min-height: 56px; }   /* pulgar, no cursor */

  .mb-main { padding: 22px 0 40px; }
  .mb-sec  { margin-bottom: 32px; }

  .mb-sec__head  { flex-wrap: wrap; gap: 2px 12px; padding-bottom: 8px; }
  .mb-sec__title { font-size: 1.3rem; }

  .mb-grid       { gap: 12px; }
  .c-card__body  { padding: 11px 11px 10px; gap: 5px; }
  .c-card__foot  { flex-wrap: wrap; gap: 6px; }
  .c-card__cat   { max-width: 100%; }

  .c-tool__media img { max-height: 72px; }

  .mb-pager      { gap: 10px; }
  .mb-pager__btn { flex: 1 1 auto; justify-content: center; min-height: 52px; }
  .mb-pager__pos { flex: 0 0 auto; }
}

@media (max-width: 359px) {
  .mb-grid { grid-template-columns: 1fr; }
}

/* ==========================================================================
   results.php · filtros plegables
   40 categorías + 24 niveles son 64 enlaces. En un teléfono eso es un muro
   antes del primer resultado. Se pliegan, y el resumen dice qué hay activo.
   ========================================================================== */
.mb-drawer { border: 0; }
.mb-drawer > summary {
  display: flex; align-items: center; justify-content: space-between; gap: 10px;
  cursor: pointer; list-style: none;
  padding: 12px 2px; min-height: 44px;
  font-weight: 600; font-size: var(--mb-t-sm); color: var(--mb-text);
}
.mb-drawer > summary::-webkit-details-marker { display: none; }
.mb-drawer > summary::after {
  content: "▾"; color: var(--mb-muted); transition: transform .18s ease;
}
.mb-drawer[open] > summary::after { transform: rotate(180deg); }
.mb-drawer > summary .mb-drawer__now { font-weight: 400; color: var(--mb-brand-dark); }
.mb-drawer + .mb-drawer { border-top: 1px dashed var(--mb-line); }
.mb-drawer__body { display: flex; flex-wrap: wrap; gap: 8px; padding: 4px 0 14px; }

@media (prefers-reduced-motion: reduce) {
  .mb-drawer > summary::after { transition: none; }
}

/* Preferencia de más contraste: subimos los grises */
@media (prefers-contrast: more) {
  :root { --mb-muted: #3E5567; --mb-line: #9FB2BF; }
  .c-card { border-color: #7E97A8; }
  .chip   { border-color: #7E97A8; }
}

/* ── Migas y H1 del catálogo ─────────────────────────────────────────────── */
.mb-crumbs {
  display: flex; flex-wrap: wrap; align-items: center; gap: 8px;
  font-size: var(--mb-t-sm); color: var(--mb-muted);
  margin: 0 0 10px;
}
.mb-crumbs a { color: var(--mb-brand-dark); text-decoration: none; padding: 4px 0; }
.mb-crumbs a:hover { text-decoration: underline; }
.mb-crumbs [aria-current="page"] { color: var(--mb-text); font-weight: 600; }

.mb-h1 {
  margin: 0 0 22px;
  font-size: var(--mb-t-h2);
  font-weight: 700; color: var(--mb-ink);
  line-height: 1.2;
}

/* ── Etiquetas de la tarjeta: nivel y mecánica ───────────────────────────── */
.c-card__tags { margin: 0; display: flex; flex-wrap: wrap; gap: 5px; }
.c-card__tag {
  font-size: var(--mb-t-xs); font-weight: 600; line-height: 1.2;
  color: var(--mb-muted); background: #F1F5F8;
  border: 1px solid var(--mb-line);
  padding: 2px 7px; border-radius: 5px;
  white-space: nowrap;
}
.c-card__tag--mec { color: #0A5E85; background: #E6F4FB; border-color: #BEE0F2; }