:root{
  --academy-void:#0d0b16;
  --academy-surface:#161423;
  --academy-gold:#e4cd85;
  --academy-line:rgba(228,205,133,.18);
  --academy-warm:#f9f4e3;
  --hub-panel-rgb:36,29,22;
  --accent-text:var(--sesame);
  --accent-surface:var(--sesame);
  --char:#19140f; --char-soft:#241d16;
  --paper:#f3ead7; --paper-soft:#ece0c6;
  --sesame:#e8a13c; --sesame-hi:#f6c06a; --ketchup:#c8442e; --lettuce:#7c9a3e;
  --on-char:#f3ead7; --on-char-soft:#c4b69d; --on-char-mute:#8a7c68;
  --line-d:rgba(243,234,215,0.12); --line-d2:rgba(243,234,215,0.22);
  --glow:rgba(232,161,60,0.5);
  --ease:cubic-bezier(0.22,1,0.36,1);
}

/* ===== Academia mother shell ===== */
.academy-shell{
  position:sticky;top:0;z-index:120;min-height:64px;
  display:flex;align-items:center;gap:clamp(.65rem,1.4vw,1.2rem);
  padding:.65rem clamp(1rem,3vw,2.6rem);
  background:rgba(13,11,22,.92);backdrop-filter:blur(16px);
  border-bottom:1px solid var(--academy-line);
}
.academy-brand{display:inline-flex;align-items:center;gap:.75rem;flex:0 0 auto;
  color:var(--academy-gold);text-decoration:none;font-family:'Martian Mono',monospace;
  font-size:.66rem;letter-spacing:.16em;text-transform:uppercase;white-space:nowrap}
.academy-brand img{width:34px;height:34px;object-fit:contain}
.shell-divider{color:rgba(249,244,227,.3)}
.constellation-context{color:var(--accent-text);font-family:'Martian Mono',monospace;
  font-size:.64rem;letter-spacing:.15em;text-transform:uppercase;white-space:nowrap}
.academy-shell .nav-desktop{margin-left:auto;display:flex;align-items:center;align-self:stretch;
  gap:clamp(.25rem,.8vw,.75rem);min-width:0}
.academy-shell .navgroup,.academy-shell .navgroup>.trigger,
.academy-shell .nav-desktop>a.solo{align-self:center}
.academy-shell .navgroup>.trigger,.academy-shell .nav-desktop>a.solo{
  min-height:44px;display:inline-flex;align-items:center}
.all-constellations{min-height:44px;display:inline-flex;align-items:center;flex:0 0 auto;
  border:1px solid color-mix(in srgb,var(--accent-surface) 34%,var(--academy-line));
  border-radius:8px;padding:0 .8rem;color:var(--accent-text);text-decoration:none;
  font:500 .6rem 'Martian Mono',monospace;letter-spacing:.12em;text-transform:uppercase}
.academy-shell .burger{margin-left:auto}
body.nav-overflow .nav-desktop,body.nav-overflow .all-constellations{display:none}
body.nav-overflow .burger{display:flex}
body.nav-overflow .nav-drawer{display:flex;position:fixed;top:0;right:0;bottom:0;
  width:min(80vw,320px);flex-direction:column;justify-content:flex-start;gap:.2rem;
  background:var(--academy-void);border-left:1px solid var(--line-d2);
  padding:5.5rem 1.6rem 2rem;z-index:121;overflow-y:auto;
  transform:translateX(100%);transition:transform .35s var(--ease);
  box-shadow:-30px 0 80px -20px rgba(0,0,0,.7)}
body.nav-overflow.menu-open .nav-drawer{transform:translateX(0)}
.hub-footer{padding-block:0 2.5rem}

/* ===== Compact constellation hero ===== */
.hub-hero{position:relative;isolation:isolate;min-height:0;
  padding:clamp(2rem,4vw,3rem) max(clamp(1.25rem,5vw,5rem),calc((100vw - 1320px)/2));
  display:grid;grid-template-columns:minmax(0,1.25fr) minmax(280px,.75fr);
  align-items:center;gap:clamp(2rem,5vw,4.5rem);overflow:hidden;
  border-bottom:1px solid var(--line-d)}
.hub-identity{display:grid;grid-template-columns:58px minmax(0,1fr);
  grid-template-rows:58px auto auto;column-gap:.9rem;align-content:center}
.constellation-avatar{grid-column:1;grid-row:1;width:58px;height:58px;border-radius:50%;
  display:grid;place-items:center;padding:10px;color:var(--accent-text);
  border:1px solid color-mix(in srgb,var(--accent-surface) 55%,transparent);
  background:rgba(var(--hub-panel-rgb),.92)}
.constellation-avatar svg{width:100%;overflow:visible}
.constellation-avatar path{fill:none;stroke:currentColor;stroke-width:1.35;stroke-linecap:round}
.constellation-avatar circle{fill:var(--char-soft);stroke:currentColor;stroke-width:1.15}
.constellation-avatar circle.core{fill:var(--on-char);stroke:var(--on-char)}
.constellation-name{grid-column:2;grid-row:1;align-self:center;color:var(--accent-text);
  font:600 .64rem 'Martian Mono',monospace;letter-spacing:.16em;text-transform:uppercase}
.hub-identity h1{grid-column:1/-1;margin:1rem 0 .8rem;font-family:'Unbounded',sans-serif;
  font-size:clamp(2.25rem,4.5vw,4.3rem);line-height:.94;letter-spacing:-.035em}
.hub-identity>p{grid-column:1/-1;max-width:48ch;color:var(--on-char-soft);line-height:1.55}
.course-progress{grid-column:1/-1;max-width:25rem;margin-top:1.25rem;
  color:var(--on-char-mute);font:400 .65rem/1.3 'Martian Mono',monospace;
  letter-spacing:.1em;text-transform:uppercase}
.course-progress .bar{height:4px;margin-top:.55rem;border-radius:99px;
  background:var(--line-d2);overflow:hidden}
.course-progress .bar i{display:block;height:100%;border-radius:inherit;background:var(--accent-surface)}
.featured-class{position:relative;display:flex;flex-direction:column;padding:0 0 0 clamp(1.5rem,3vw,2.5rem);
  min-height:0;border:0;border-left:1px solid var(--line-d);border-radius:0;background:transparent;
  color:var(--on-char);text-decoration:none}
.featured-label,.featured-go{color:var(--accent-text);font:600 .62rem 'Martian Mono',monospace;
  letter-spacing:.14em;text-transform:uppercase}
.featured-class h2{font:500 clamp(1.45rem,2.4vw,2.15rem)/1.05 Fraunces,serif;margin:.75rem 0 .5rem}
.featured-class p{color:var(--on-char-soft);font-size:.92rem;line-height:1.5}
.featured-go{margin-top:0;padding-top:1rem}
.course-tabs{display:flex;gap:1.8rem;padding-top:1.25rem;padding-bottom:.4rem;
  border-bottom:1px solid var(--line-d)}
.course-tab{position:relative;padding:.75rem 0;color:var(--on-char-mute);text-decoration:none;
  font:600 .72rem/1 'Martian Mono',monospace;letter-spacing:.14em;text-transform:uppercase}
.course-tab.current,.course-tab:hover{color:var(--on-char)}
.course-tab.current::after{content:"";position:absolute;left:0;right:0;bottom:-.45rem;
  height:2px;background:var(--accent-surface)}
.course-tab:focus-visible{outline:2px solid var(--accent-text);outline-offset:4px}
/* La identidad de cada constelación —tokens, tipografías y motivo— vive
   en motor/temas/<id>.css. Aquí sólo queda la estructura: el motor no
   conoce a DTMM ni a Inglés por nombre.
   El motivo se posiciona aquí porque eso es colocación; cómo se ve lo
   decide el tema. */
.constellation-motif{position:absolute;inset:0;z-index:-1;pointer-events:none}
*{margin:0;padding:0;box-sizing:border-box}
html{scroll-behavior:smooth}
body{min-height:100%;background:var(--char);color:var(--on-char);
  font-family:'Spline Sans',system-ui,sans-serif;-webkit-font-smoothing:antialiased;
  position:relative;overflow-x:hidden}
.pad{padding-inline:clamp(1.5rem,6vw,7rem)}
.serif{font-family:'Fraunces',serif}

/* ===== top bar ===== */
.topbar{position:sticky;top:0;z-index:20;display:flex;align-items:center;
  gap:clamp(.8rem,2vw,1.6rem);padding:clamp(.7rem,2vw,1.1rem) clamp(1.2rem,4vw,3.5rem);
  background:rgba(25,20,15,.72);backdrop-filter:blur(14px);
  border-bottom:1px solid var(--line-d)}
/* La marca queda a la izquierda y las acciones a la derecha:
   el nav absorbe el espacio libre en escritorio y, cuando se oculta
   en móvil, .home/.burger siguen empujados al borde derecho. */
.topbar .brand{margin-right:auto}
.topbar .home{margin-left:auto}
.brand{font-family:'Fraunces',serif;font-weight:500;font-size:clamp(1rem,1.6vw,1.25rem);
  color:var(--on-char);letter-spacing:.01em;text-decoration:none;white-space:nowrap;flex-shrink:0}
.brand b{color:var(--sesame);font-weight:600}
/* ---- nav de escritorio: grupos con menú desplegable ----
   La barra muestra pocos grupos fijos; las filas viven dentro.
   Agregar filas nunca la hace crecer. */
.nav-desktop{display:flex;align-items:center;gap:clamp(.3rem,1vw,.9rem);
  min-width:0;justify-content:center;flex-wrap:nowrap}

.navgroup{position:relative}
.navgroup>.trigger{font-family:'Martian Mono',monospace;font-size:.68rem;letter-spacing:.14em;
  text-transform:uppercase;color:var(--on-char-soft);text-decoration:none;
  background:transparent;border:1px solid transparent;border-radius:8px;cursor:pointer;
  padding:.45rem .7rem;min-height:44px;display:inline-flex;align-items:center;gap:.45rem;
  white-space:nowrap;touch-action:manipulation;
  transition:color .25s var(--ease),border-color .25s var(--ease),background .25s var(--ease)}
.navgroup>.trigger .chev{font-size:.6em;opacity:.7;transition:transform .25s var(--ease)}
.navgroup>.trigger:hover,.navgroup>.trigger:focus-visible{color:var(--sesame)}
.navgroup>.trigger:focus-visible{outline:2px solid var(--sesame);outline-offset:2px}
.navgroup.open>.trigger{color:var(--sesame);border-color:var(--line-d2);
  background:rgba(243,234,215,.05)}
.navgroup.open>.trigger .chev{transform:rotate(180deg)}
.navgroup>.trigger.current{color:var(--sesame)}

.navmenu{position:absolute;top:calc(100% + .5rem);left:50%;transform:translateX(-50%) translateY(-6px);
  min-width:15rem;max-width:min(20rem,80vw);
  background:rgba(28,22,16,.97);backdrop-filter:blur(16px);
  border:1px solid var(--line-d2);border-radius:14px;padding:.5rem;
  box-shadow:0 28px 60px -28px rgba(0,0,0,.85);
  display:flex;flex-direction:column;gap:.1rem;
  opacity:0;visibility:hidden;pointer-events:none;
  transition:opacity .22s var(--ease),transform .22s var(--ease),visibility .22s}
.navgroup.open>.navmenu{opacity:1;visibility:visible;pointer-events:auto;
  transform:translateX(-50%) translateY(0)}
.navmenu a{display:flex;flex-direction:column;gap:.15rem;text-decoration:none;
  padding:.65rem .7rem;min-height:44px;justify-content:center;
  border-radius:9px;transition:background .2s var(--ease)}
.navmenu a:hover,.navmenu a:focus-visible{background:rgba(232,161,60,.12);outline:none}
.navmenu a .mt{font-family:'Martian Mono',monospace;font-size:.66rem;letter-spacing:.13em;
  text-transform:uppercase;color:var(--on-char)}
.navmenu a:hover .mt,.navmenu a.current .mt{color:var(--sesame)}
.navmenu a .md{font-size:.74rem;line-height:1.35;color:var(--on-char-mute)}
.navmenu a .mn{font-family:'Martian Mono',monospace;font-size:.58rem;letter-spacing:.1em;
  color:var(--on-char-mute)}

/* enlace suelto (sin submenú), p.ej. la masterclass */
.nav-desktop>a.solo{font-family:'Martian Mono',monospace;font-size:.68rem;letter-spacing:.14em;
  text-transform:uppercase;color:var(--on-char-soft);text-decoration:none;
  padding:.45rem .7rem;border-radius:8px;white-space:nowrap;
  transition:color .25s var(--ease)}
.nav-desktop>a.solo:hover,.nav-desktop>a.solo.current{color:var(--sesame)}
.nav-desktop>a.solo:focus-visible{outline:2px solid var(--sesame);outline-offset:2px}
/* nav drawer (móvil, hermano del body — stacking context propio) */
.nav-drawer{display:none}
.topbar .home{font-family:'Martian Mono',monospace;font-size:.68rem;letter-spacing:.16em;
  text-transform:uppercase;color:var(--on-char-mute);text-decoration:none;
  transition:color .25s var(--ease);white-space:nowrap;flex-shrink:0}
.topbar .home:hover{color:var(--sesame)}
.topbar .home:focus-visible{outline:2px solid var(--sesame);outline-offset:3px;border-radius:4px}
/* burger */
.burger{display:none;flex-direction:column;justify-content:center;align-items:center;gap:5px;
  width:44px;height:44px;flex-shrink:0;border:1px solid var(--line-d2);border-radius:10px;
  background:transparent;cursor:pointer;padding:0 10px;
  transition:border-color .25s var(--ease),background .25s var(--ease),transform .12s var(--ease);
  -webkit-tap-highlight-color:transparent;touch-action:manipulation}
.burger:hover{border-color:var(--sesame)}
.burger:active{transform:scale(.94);background:rgba(243,234,215,.06)}
.burger:focus-visible{outline:2px solid var(--sesame);outline-offset:3px}
.burger span{display:block;height:2px;width:22px;background:var(--on-char);border-radius:2px;
  transition:transform .3s var(--ease),opacity .2s var(--ease);pointer-events:none}
body.menu-open .burger span:nth-child(1){transform:translateY(7px) rotate(45deg)}
body.menu-open .burger span:nth-child(2){opacity:0}
body.menu-open .burger span:nth-child(3){transform:translateY(-7px) rotate(-45deg)}

/* salto al contenido, para teclado y lectores de pantalla */
.skip-link{position:absolute;left:50%;top:0;transform:translate(-50%,-120%);
  z-index:200;background:var(--sesame);color:#1a1103;font-weight:600;
  font-family:'Spline Sans',sans-serif;font-size:.9rem;text-decoration:none;
  padding:.7rem 1.2rem;border-radius:0 0 10px 10px;
  transition:transform .2s var(--ease)}
.skip-link:focus{transform:translate(-50%,0)}

/* scroll-margin so sticky bar doesn't cover anchors */
.row-sec,.hero{scroll-margin-top:5rem}
#rows:focus{outline:none}

/* respetar quien pide menos movimiento */
@media (prefers-reduced-motion:reduce){
  *,*::before,*::after{animation-duration:.01ms !important;animation-iteration-count:1 !important;
    transition-duration:.01ms !important;scroll-behavior:auto !important}
}

.nav-scrim{position:fixed;inset:0;background:rgba(0,0,0,.6);z-index:100;opacity:0;
  visibility:hidden;transition:opacity .3s var(--ease)}
body.menu-open .nav-scrim{opacity:1;visibility:visible}

/* ===== Contenido del cajón =====
   Estas reglas NO pueden vivir dentro del @media: el cajón se abre por
   dos caminos distintos —  el media query de abajo, y body.nav-overflow,
   que salta en cualquier ancho cuando la nav no cabe. Cuando se abría
   por el segundo, sus enlaces salían sin estilo (azules y subrayados,
   el aspecto por defecto del navegador). */
.nav-drawer a{font-family:'Martian Mono',monospace;font-size:.82rem;letter-spacing:.12em;
  text-transform:uppercase;color:var(--on-char);text-decoration:none;
  padding:.95rem .2rem;width:100%;border-bottom:1px solid var(--line-d);
  transition:color .25s var(--ease)}
.nav-drawer a:hover{color:var(--sesame)}
.nav-drawer a:focus-visible{outline:2px solid var(--sesame);outline-offset:-2px}
/* grupos dentro del drawer: encabezado + sus filas indentadas */
.nav-drawer .dgroup{width:100%;margin-top:1.1rem;
  display:flex;flex-direction:column;align-items:stretch}
.nav-drawer .dgroup:first-of-type{margin-top:0}
.nav-drawer .dhead{font-family:'Martian Mono',monospace;font-size:.58rem;letter-spacing:.24em;
  text-transform:uppercase;color:var(--sesame);opacity:.85;
  padding:0 .2rem .5rem;border-bottom:1px solid var(--line-d2)}
.nav-drawer .dgroup a{font-size:.76rem;padding:.8rem .2rem .8rem .9rem;color:var(--on-char-soft);
  display:flex;align-items:center;justify-content:space-between;gap:.8rem}
.nav-drawer .dgroup a .mn{font-size:.56rem;letter-spacing:.1em;color:var(--on-char-mute);
  flex-shrink:0}
.nav-drawer .dgroup a:hover{color:var(--sesame)}
.nav-drawer .dfoot{margin-top:1.6rem;padding-top:1rem;border-top:1px solid var(--line-d2);width:100%}
body.menu-open{overflow:hidden}

@media(max-width:820px){
  .nav-desktop{display:none}
  .burger{display:flex}
  .nav-drawer{display:flex;position:fixed;top:0;right:0;bottom:0;width:min(80vw,320px);
    flex-direction:column;justify-content:flex-start;gap:.2rem;background:#100c08;
    border-left:1px solid var(--line-d2);padding:5.5rem 1.6rem 2rem;z-index:101;
    transform:translateX(100%);transition:transform .35s var(--ease);
    box-shadow:-30px 0 80px -20px rgba(0,0,0,.7);overflow-y:auto}
  body.menu-open .nav-drawer{transform:translateX(0)}
  .topbar .home{display:none}
}

/* ===== HERO cinematográfico ===== */
.hero{position:relative;min-height:clamp(360px,64vh,600px);display:flex;align-items:flex-end;
  padding:clamp(2rem,6vw,5rem) clamp(1.5rem,6vw,7rem) clamp(3rem,7vw,5.5rem);
  overflow:hidden;isolation:isolate}
.hero::before{content:"";position:absolute;inset:0;z-index:-2;
  background:
    radial-gradient(90% 120% at 82% 12%,rgba(232,161,60,.32),transparent 55%),
    radial-gradient(70% 90% at 12% 90%,rgba(200,68,46,.16),transparent 60%),
    linear-gradient(180deg,#2a2016,#19140f 82%)}
.hero::after{content:"";position:absolute;inset:0;z-index:-1;
  background:linear-gradient(180deg,transparent 40%,var(--char) 98%)}
.hero .halo{position:absolute;top:-20%;right:-6%;width:52vh;height:52vh;border-radius:50%;
  z-index:-1;filter:blur(90px);pointer-events:none;
  background:radial-gradient(circle,rgba(246,192,106,.28),transparent 70%)}
.hero-in{position:relative;max-width:60ch}
.tagline{font-family:'Martian Mono',monospace;font-size:clamp(.62rem,.8vw,.76rem);
  letter-spacing:.26em;text-transform:uppercase;color:var(--sesame);
  display:flex;gap:.8rem;align-items:center;flex-wrap:wrap}
.tagline .badge{background:var(--sesame);color:#1a1103;border-radius:999px;padding:.22rem .7rem;
  font-weight:600;letter-spacing:.1em}
.hero h1{font-family:'Unbounded',sans-serif;font-weight:700;letter-spacing:-.02em;
  font-size:clamp(2.3rem,6vw,4.8rem);line-height:.98;margin:1.1rem 0 .9rem;color:var(--on-char)}
.hero h1 .hl{color:var(--sesame)}
.hero p{color:var(--on-char-soft);font-size:clamp(1rem,1.4vw,1.28rem);line-height:1.5;max-width:48ch}
.hero .cta{display:inline-flex;align-items:center;gap:.6rem;margin-top:1.7rem;
  background:var(--sesame);color:#1a1103;text-decoration:none;font-weight:600;
  font-family:'Spline Sans',sans-serif;font-size:1rem;border-radius:999px;
  padding:.8rem 1.5rem;transition:transform .25s var(--ease),box-shadow .25s var(--ease);
  box-shadow:0 16px 38px -16px var(--glow)}
.hero .cta:hover{transform:translateY(-2px);box-shadow:0 22px 48px -18px var(--glow)}
.hero .cta .arw{transition:transform .25s var(--ease)}
.hero .cta:hover .arw{transform:translateX(4px)}
.hero .cta:focus-visible{outline:2px solid var(--sesame);outline-offset:4px}

.wrap{position:relative;z-index:1;max-width:1320px;margin-inline:auto}

/* ===== Explorador curricular ===== */
.rows-area{max-width:1120px;padding-top:clamp(1.5rem,4vw,3rem);padding-bottom:6rem}
.focused-curriculum{scroll-margin-top:5rem}
.curriculum-workspace{display:grid;grid-template-columns:220px minmax(0,1fr);gap:clamp(2rem,5vw,4rem)}
.course-map{position:sticky;top:5.5rem;align-self:start;padding-right:1.5rem;
  border-right:1px solid var(--line-d)}
.course-map-label{display:block;margin-bottom:.8rem;color:var(--on-char-mute);
  font:500 .58rem/1 'Martian Mono',monospace;letter-spacing:.14em;text-transform:uppercase}
.course-map-button{position:relative;display:grid;grid-template-columns:minmax(0,1fr) auto;gap:.5rem;
  align-items:center;width:100%;min-height:46px;padding:.7rem .5rem .7rem 1.15rem;border:0;
  background:none;color:var(--on-char-soft);text-align:left;cursor:pointer}
.course-map-button::before{content:"";position:absolute;left:.15rem;width:6px;height:6px;
  border:1px solid var(--on-char-mute);border-radius:50%}
.course-map-button span:first-child{font-family:'Unbounded',sans-serif;font-size:.78rem;font-weight:500}
.course-map-button span:last-child{color:var(--on-char-mute);font:400 .55rem/1 'Martian Mono',monospace}
.course-map-button:hover{color:var(--on-char);background:rgba(var(--hub-panel-rgb),.35)}
.course-map-button[aria-pressed="true"]{color:var(--on-char);background:rgba(var(--hub-panel-rgb),.62)}
.course-map-button[aria-pressed="true"]::before{border-color:var(--accent-text);background:var(--accent-text)}
.course-map-button:focus-visible{outline:2px solid var(--accent-text);outline-offset:2px}
.active-category-header{display:flex;justify-content:space-between;gap:1.5rem;align-items:end;
  min-height:52px;padding-bottom:1rem;border-bottom:1px solid var(--line-d)}
.active-category-header h2{margin-top:.25rem;font-family:'Unbounded',sans-serif;
  font-size:clamp(1.3rem,2.4vw,1.75rem);font-weight:600}
.category-meta{color:var(--on-char-mute);font:400 .65rem/1.4 'Martian Mono',monospace;
  letter-spacing:.12em;text-transform:uppercase}
.category-progress{color:var(--on-char-mute);
  font:400 .62rem/1 'Martian Mono',monospace;white-space:nowrap}
.lesson-list{display:flex;flex-direction:column}
.lesson-row{display:grid;grid-template-columns:2.4rem minmax(0,1fr) auto;gap:1rem;align-items:center;
  min-height:80px;padding:.7rem .25rem;border:0;border-bottom:1px solid var(--line-d);border-radius:0;
  color:inherit;text-decoration:none;transition:background .2s var(--ease),border-color .2s var(--ease)}
.lesson-row:hover{background:rgba(var(--hub-panel-rgb),.48)}
.lesson-row:focus-visible{outline:2px solid var(--accent-text);outline-offset:2px}
.lesson-row.curso{background:color-mix(in srgb,var(--accent-surface) 12%,transparent);
  box-shadow:inset 2px 0 0 var(--accent-text)}
.lesson-status{width:2rem;height:2rem;display:grid;place-items:center;border:1px solid var(--line-d2);
  border-radius:50%;color:var(--on-char-mute);font:500 .62rem/1 'Martian Mono',monospace}
.lesson-row.visto .lesson-status{background:var(--lettuce);border-color:var(--lettuce);color:var(--char)}
.lesson-row.curso .lesson-status{border-color:var(--accent-text);color:var(--accent-text)}
.lesson-copy{display:flex;flex-direction:column;min-width:0}
.lesson-kicker{color:var(--accent-text);font:500 .58rem/1.4 'Martian Mono',monospace;
  letter-spacing:.12em;text-transform:uppercase}
.lesson-copy strong{margin-top:.25rem;font-family:'Unbounded',sans-serif;font-size:1rem;line-height:1.25}
.lesson-summary{margin-top:.25rem;color:var(--on-char-soft);font-size:.82rem;line-height:1.35;
  white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.lesson-materials{display:flex;flex-wrap:wrap;gap:.45rem;margin-top:.35rem}
.material{color:var(--on-char-mute);font:400 .56rem/1.3 'Martian Mono',monospace;
  letter-spacing:.08em;text-transform:uppercase}
.lesson-action{padding-left:1rem;color:var(--accent-text);font:500 .62rem/1.3 'Martian Mono',monospace;
  letter-spacing:.1em;text-transform:uppercase;white-space:nowrap}
.lesson-row.soon{opacity:.58;cursor:default}
.curriculum-empty{padding:1rem;color:var(--on-char-mute)}
.mobile-curriculum{display:none}
.mobile-category{border-top:1px solid var(--line-d)}
.mobile-category:last-child{border-bottom:1px solid var(--line-d)}
.mobile-category-heading{display:grid;grid-template-columns:minmax(0,1fr) auto;gap:1rem;align-items:center;
  width:100%;min-height:60px;padding:.8rem 0;border:0;background:none;color:inherit;text-align:left;cursor:pointer}
.mobile-category-copy{display:flex;flex-direction:column;gap:.25rem;min-width:0}
.mobile-category-copy strong{font-family:'Unbounded',sans-serif;font-size:1rem}
.mobile-category-copy small{color:var(--on-char-mute);font:400 .58rem/1.4 'Martian Mono',monospace;
  letter-spacing:.09em;text-transform:uppercase}
.mobile-category-progress{color:var(--on-char-mute);font:400 .58rem/1 'Martian Mono',monospace;white-space:nowrap}
.mobile-category-heading[aria-expanded="true"] .mobile-category-progress span{display:inline-block;transform:rotate(180deg)}
.mobile-category-heading:focus-visible{outline:2px solid var(--accent-text);outline-offset:3px}

/* texto sólo para lectores de pantalla: el estado no puede vivir
   únicamente en el color y la forma */
.sr-only{position:absolute;width:1px;height:1px;padding:0;margin:-1px;
  overflow:hidden;clip:rect(0 0 0 0);white-space:nowrap;border:0}

.foot{margin-top:clamp(3rem,5vw,4rem);font-family:'Fraunces',serif;font-style:italic;
  color:var(--on-char-mute);font-size:.95rem}
.foot a{color:var(--sesame);text-decoration:none;border-bottom:1px solid rgba(232,161,60,.3)}

/* ===== responsive · retrato / móvil ===== */
@media(max-width:640px){
  .hero{min-height:auto;padding-top:clamp(2.5rem,10vw,4rem);padding-bottom:clamp(2.5rem,9vw,4rem);
    align-items:flex-start}
  .hero::after{background:linear-gradient(180deg,transparent 55%,var(--char) 100%)}
  .hero h1{font-size:clamp(2.1rem,10vw,3.2rem)}
  .hero p{font-size:1rem}
  .hero .cta{width:100%;justify-content:center}
}
@media(max-width:380px){
  .brand{font-size:1rem}
}

/* ============================================================
   Estado de carga / error del hub por datos
   ============================================================ */
.loaderr{max-width:46ch;margin:3rem auto;text-align:center;color:var(--on-char-soft);
  font-size:.95rem;line-height:1.6;
  background:var(--char-soft);border:1px solid var(--line-d);
  border-left:3px solid var(--ketchup);border-radius:12px;padding:1.2rem 1.4rem}

/* ============================================================
   Vista de detalle de una clase (clase.html)
   ============================================================ */
.detail{max-width:64rem;margin:0 auto;padding:clamp(2rem,5vw,3.4rem) clamp(1.2rem,4vw,3rem) 6rem}
.detail .eyebrow{font-family:'Martian Mono',monospace;font-size:.68rem;letter-spacing:.3em;
  text-transform:uppercase;color:var(--sesame);
  display:flex;align-items:center;gap:.8rem;margin-bottom:1.1rem;flex-wrap:wrap}
.detail .eyebrow::before{content:"";width:34px;height:1px;background:currentColor;opacity:.6}
.detail h1{font-family:'Unbounded',sans-serif;font-weight:700;letter-spacing:-.02em;
  line-height:1.03;font-size:clamp(1.8rem,4.4vw,3rem)}
.detail h1 .hl{color:var(--sesame)}
.detail .lede{font-size:clamp(1rem,1.6vw,1.18rem);color:var(--on-char-soft);
  max-width:54ch;margin-top:1.1rem}
.detail h2{font-family:'Unbounded',sans-serif;font-weight:600;letter-spacing:-.01em;
  font-size:clamp(1.05rem,1.9vw,1.35rem);margin-top:clamp(2.4rem,5vw,3.4rem);
  padding-top:1.3rem;border-top:1px solid var(--line-d)}

.mainact{display:inline-flex;align-items:center;gap:.6rem;margin-top:1.7rem;
  background:var(--sesame);color:#1a1103;text-decoration:none;font-weight:600;
  font-family:'Spline Sans',sans-serif;font-size:1rem;border-radius:999px;
  padding:.8rem 1.5rem;transition:transform .25s var(--ease),box-shadow .25s var(--ease);
  box-shadow:0 16px 38px -16px var(--glow)}
.mainact:hover{transform:translateY(-2px);box-shadow:0 22px 48px -18px var(--glow)}
.mainact .arw{transition:transform .25s var(--ease)}
.mainact:hover .arw{transform:translateX(4px)}
.mainact:focus-visible{outline:2px solid var(--sesame);outline-offset:4px}

.items{display:flex;flex-direction:column;gap:.9rem;margin-top:1.4rem}
.item{display:grid;grid-template-columns:auto 1fr auto;gap:1.1rem;align-items:center;
  text-decoration:none;color:inherit;
  background:var(--char-soft);border:1px solid var(--line-d);border-radius:14px;
  padding:clamp(1rem,1.8vw,1.35rem);transition:.28s var(--ease)}
a.item:hover{border-color:var(--sesame);transform:translateY(-2px);
  box-shadow:0 18px 44px -28px var(--glow)}
a.item:focus-visible{outline:2px solid var(--sesame);outline-offset:3px}
.item .ico{font-size:1.3rem;line-height:1;color:var(--sesame);flex-shrink:0;
  align-self:flex-start;padding-top:.15rem}
.item .body{min-width:0}
.item .t{font-family:'Unbounded',sans-serif;font-weight:500;
  font-size:clamp(.98rem,1.5vw,1.15rem);line-height:1.25;display:block}
.item .d{color:var(--on-char-soft);font-size:clamp(.85rem,1.15vw,.98rem);
  line-height:1.45;margin-top:.35rem;display:block}
.item .go{font-family:'Martian Mono',monospace;font-size:.64rem;letter-spacing:.14em;
  color:var(--sesame);white-space:nowrap;flex-shrink:0}
.item.soon{border-style:dashed;border-color:var(--line-d2);cursor:default}
.item.soon .ico,.item.soon .go{color:var(--on-char-mute)}
.item.soon .t{color:var(--on-char-soft)}
.item.soon .d{color:var(--on-char-mute)}

.topics{display:grid;grid-template-columns:repeat(auto-fit,minmax(min(100%,15rem),1fr));
  gap:.8rem;margin-top:1.4rem}
.topic{background:var(--char-soft);border:1px solid var(--line-d);border-radius:12px;
  padding:1rem 1.15rem}
.topic .n{font-family:'Martian Mono',monospace;font-size:.6rem;letter-spacing:.2em;
  color:var(--sesame)}
.topic .tx{margin-top:.4rem;font-size:.95rem;line-height:1.4;color:var(--on-char-soft)}

@media(max-width:640px){
  .item{grid-template-columns:auto 1fr;gap:.75rem}
  .item .go{grid-column:2;font-size:.6rem}
}

@media(max-width:760px){
  .hub-hero{grid-template-columns:1fr;min-height:0;padding:2rem 1.25rem;gap:1.25rem}
  .featured-class{min-height:0;padding:1.25rem 0 0;border-left:0;border-top:1px solid var(--line-d)}
  .hub-identity h1{font-size:clamp(2.3rem,12vw,4.2rem)}
  .course-tabs{overflow-x:auto;padding-inline:1.25rem}
  .rows-area{padding-inline:1.25rem}
  .curriculum-workspace{display:none}
  .mobile-curriculum{display:block}
  .lesson-row{grid-template-columns:2.2rem minmax(0,1fr);min-height:0;padding:.95rem .25rem}
  .lesson-summary{white-space:normal;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical}
  .lesson-action{grid-column:2;padding:.35rem 0 0;min-height:44px;display:flex;align-items:center}
  .all-constellations{display:none}
}
@media(max-width:480px){
  .academy-brand span{max-width:8.5rem;white-space:normal;line-height:1.25}
  .shell-divider,.constellation-context{display:none}
}

@media(prefers-reduced-motion:reduce){
  .mobile-category-progress span,.lesson-row{transition:none}
}