/* ==========================================================================
   DIGITOMENORES — Hoja de estilos global
   DIGITO Systems · "Tecnología con alma"
   Paleta: azul marino profundo + cian eléctrico
   ========================================================================== */

:root{
  --azul-950: #050b18;
  --azul-900: #0a1628;
  --azul-800: #0f2038;
  --azul-700: #14304f;
  --azul-600: #1c4266;
  --cian-400: #4dd8e8;
  --cian-300: #7fe6f2;
  --cian-500: #22c1d6;
  --cian-glow: rgba(77,216,232,.35);
  --texto-100: #eaf3fb;
  --texto-300: #b7cbe0;
  --texto-500: #7d93b0;
  --exito: #37d69b;
  --alerta: #f2a154;
  --error: #ef5f6d;
  --php-tag: #8e7dff;
  --borde: rgba(125,163,208,.16);
  --radio: 10px;
  --fuente-display: 'Space Grotesk', 'Segoe UI', system-ui, sans-serif;
  --fuente-texto: 'Inter', 'Segoe UI', system-ui, sans-serif;
  --fuente-code: 'JetBrains Mono', 'Fira Code', Consolas, monospace;
  --nav-w: 300px;
  --header-h: 68px;
}

*{box-sizing:border-box;}
html{scroll-behavior:smooth;}
body{
  margin:0;
  background-color:var(--azul-950);
  background-image:
    radial-gradient(circle at 1px 1px, rgba(77,216,232,.22) 1px, transparent 0),
    linear-gradient(rgba(77,216,232,.05) 1px, transparent 1px),
    linear-gradient(90deg, rgba(77,216,232,.05) 1px, transparent 1px);
  background-size: 42px 42px, 42px 42px, 42px 42px;
  background-attachment: fixed;
  color:var(--texto-100);
  font-family:var(--fuente-texto);
  line-height:1.6;
  -webkit-font-smoothing:antialiased;
}
body::before{
  content:"";
  position:fixed; inset:0;
  background:
    radial-gradient(ellipse 900px 500px at 8% -5%, rgba(77,216,232,.12), transparent 60%),
    radial-gradient(ellipse 700px 500px at 100% 10%, rgba(34,193,214,.09), transparent 55%),
    radial-gradient(ellipse 800px 600px at 50% 110%, rgba(142,125,255,.06), transparent 60%);
  pointer-events:none; z-index:0;
}
body::after{
  content:"";
  position:fixed; inset:0; pointer-events:none; z-index:0;
  background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='220' height='220' viewBox='0 0 220 220'%3E%3Cg fill='none' stroke='%234dd8e8' stroke-width='1' opacity='0.05'%3E%3Cpath d='M20 20 H100 V60 H180'/%3E%3Cpath d='M20 140 H70 V190 H160 V140 H200'/%3E%3Cpath d='M110 20 V90 H160 V150'/%3E%3Ccircle cx='20' cy='20' r='3' fill='%234dd8e8' stroke='none'/%3E%3Ccircle cx='100' cy='20' r='3' fill='%234dd8e8' stroke='none'/%3E%3Ccircle cx='180' cy='60' r='3' fill='%234dd8e8' stroke='none'/%3E%3Ccircle cx='20' cy='140' r='3' fill='%234dd8e8' stroke='none'/%3E%3Ccircle cx='160' cy='190' r='3' fill='%234dd8e8' stroke='none'/%3E%3Ccircle cx='200' cy='140' r='3' fill='%234dd8e8' stroke='none'/%3E%3Ccircle cx='110' cy='90' r='3' fill='%234dd8e8' stroke='none'/%3E%3Ccircle cx='160' cy='150' r='3' fill='%234dd8e8' stroke='none'/%3E%3C/g%3E%3C/svg%3E");
  background-repeat:repeat;
  background-size:220px 220px;
  mix-blend-mode:screen;
}
a{color:var(--cian-400); text-decoration:none;}
a:hover{color:var(--cian-300); text-decoration:underline;}
h1,h2,h3,h4{font-family:var(--fuente-display); color:#fff; letter-spacing:-.01em; line-height:1.2;}
code, pre, .mono{font-family:var(--fuente-code);}
img{max-width:100%;}
:focus-visible{outline:2px solid var(--cian-400); outline-offset:2px; border-radius:4px;}

/* ---------- Barra de circuito decorativa (firma visual) ---------- */
.circuito{
  position:absolute; inset:0; pointer-events:none; opacity:.5; overflow:hidden;
}

/* ---------- Header superior ---------- */
.top-header{
  position:sticky; top:0; z-index:60;
  height:var(--header-h);
  display:flex; align-items:center; justify-content:space-between;
  padding:0 20px 0 16px;
  background:rgba(5,11,24,.86);
  backdrop-filter:blur(14px);
  border-bottom:1px solid var(--borde);
}
.marca{display:flex; align-items:center; gap:10px; font-family:var(--fuente-display); font-weight:700; font-size:1.05rem; color:#fff;}
.marca .logo-mark{
  width:34px; height:34px; border-radius:9px;
  background:linear-gradient(135deg, var(--cian-400), var(--azul-600));
  display:flex; align-items:center; justify-content:center;
  font-family:var(--fuente-display); font-weight:800; color:var(--azul-950); font-size:.95rem;
  box-shadow:0 0 22px var(--cian-glow);
}
.marca .sub{font-size:.68rem; color:var(--texto-500); font-weight:500; letter-spacing:.04em;}
.header-acciones{display:flex; align-items:center; gap:14px;}
.btn-menu-movil{
  display:none; background:none; border:1px solid var(--borde); color:var(--texto-100);
  width:40px; height:40px; border-radius:8px; cursor:pointer; font-size:1.1rem;
}
.pill{
  font-size:.72rem; padding:5px 11px; border-radius:99px; border:1px solid var(--cian-glow);
  color:var(--cian-300); background:rgba(77,216,232,.06); font-weight:600; letter-spacing:.02em;
}

/* ---------- Layout con menú lateral ---------- */
.app-shell{ display:flex; min-height:calc(100vh - var(--header-h)); position:relative; z-index:1;}
.sidebar{
  width:var(--nav-w); flex-shrink:0;
  border-right:1px solid var(--borde);
  background:linear-gradient(180deg, var(--azul-900), var(--azul-950));
  height:calc(100vh - var(--header-h));
  position:sticky; top:var(--header-h); overflow-y:auto;
  padding:18px 12px 40px;
}
.sidebar::-webkit-scrollbar{width:6px;}
.sidebar::-webkit-scrollbar-thumb{background:var(--azul-700); border-radius:3px;}
.sidebar-titulo{
  font-size:.68rem; text-transform:uppercase; letter-spacing:.12em; color:var(--texto-500);
  padding:8px 10px 10px; font-weight:700;
}
.nav-modulo{margin-bottom:4px;}
.nav-modulo-btn{
  width:100%; display:flex; align-items:center; gap:10px; text-align:left;
  background:none; border:none; color:var(--texto-300); font-family:var(--fuente-texto);
  padding:10px 10px; border-radius:8px; cursor:pointer; font-size:.86rem; font-weight:600;
}
.nav-modulo-btn:hover{background:var(--azul-800); color:#fff;}
.nav-modulo-btn.activo{background:rgba(77,216,232,.09); color:var(--cian-300);}
.nav-modulo-num{
  width:26px; height:26px; flex-shrink:0; border-radius:7px; background:var(--azul-700);
  display:flex; align-items:center; justify-content:center; font-size:.72rem; font-weight:700; color:var(--cian-300);
  font-family:var(--fuente-code);
}
.nav-modulo-btn.activo .nav-modulo-num{background:var(--cian-400); color:var(--azul-950);}
.nav-caret{margin-left:auto; font-size:.7rem; color:var(--texto-500); transition:transform .2s;}
.nav-modulo.abierto .nav-caret{transform:rotate(90deg);}
.nav-lecciones{
  max-height:0; overflow:hidden; transition:max-height .25s ease;
  padding-left:36px; border-left:1px dashed var(--borde); margin-left:23px;
}
.nav-modulo.abierto .nav-lecciones{max-height:600px;}
.nav-lecciones a{
  display:block; padding:7px 8px; font-size:.79rem; color:var(--texto-500); border-radius:6px;
}
.nav-lecciones a:hover{color:var(--cian-300); background:var(--azul-800); text-decoration:none;}
.nav-lecciones a.activa{color:var(--cian-300); font-weight:600;}
.sidebar-final{
  margin-top:16px; padding-top:14px; border-top:1px solid var(--borde);
}
.sidebar-final a{
  display:flex; gap:10px; align-items:center; padding:10px; border-radius:8px;
  color:var(--texto-100); font-weight:700; font-size:.85rem;
  background:linear-gradient(135deg, rgba(77,216,232,.14), rgba(142,125,255,.08));
  border:1px solid var(--cian-glow);
}
.sidebar-final a:hover{text-decoration:none; filter:brightness(1.1);}

/* ---------- Contenido principal ---------- */
.contenido{flex:1; min-width:0; padding:40px 48px 90px; position:relative; z-index:1;}
.migas{font-size:.78rem; color:var(--texto-500); margin-bottom:18px;}
.migas a{color:var(--texto-500);}
.migas a:hover{color:var(--cian-300);}
.contenido-ancho{max-width:900px;}

/* ---------- Hero de módulo ---------- */
.hero-modulo{
  border:1px solid var(--borde); border-radius:16px; padding:34px 36px; margin-bottom:34px;
  background:linear-gradient(135deg, var(--azul-900), var(--azul-800));
  position:relative; overflow:hidden;
}
.hero-modulo::after{
  content:""; position:absolute; right:-60px; top:-60px; width:220px; height:220px; border-radius:50%;
  background:radial-gradient(circle, var(--cian-glow), transparent 70%);
}
.hero-eyebrow{color:var(--cian-400); font-family:var(--fuente-code); font-size:.78rem; font-weight:600; letter-spacing:.06em;}
.hero-modulo h1{font-size:2rem; margin:.4em 0 .3em;}
.hero-modulo p{color:var(--texto-300); max-width:640px; margin:0;}
.hero-meta{display:flex; gap:22px; margin-top:18px; flex-wrap:wrap;}
.hero-meta-item{font-size:.8rem; color:var(--texto-500);}
.hero-meta-item b{color:var(--texto-100); display:block; font-size:1.15rem; font-family:var(--fuente-display);}

/* ---------- Tarjetas de lección (índice de módulo) ---------- */
.grid-lecciones{display:grid; grid-template-columns:repeat(auto-fill,minmax(260px,1fr)); gap:16px; margin-bottom:40px;}
.tarjeta-leccion{
  border:1px solid var(--borde); border-radius:12px; padding:18px 20px; background:var(--azul-900);
  transition:transform .15s, border-color .15s;
}
.tarjeta-leccion:hover{border-color:var(--cian-glow); transform:translateY(-2px); text-decoration:none;}
.tarjeta-leccion .num{font-family:var(--fuente-code); color:var(--cian-400); font-size:.75rem; font-weight:700;}
.tarjeta-leccion h3{font-size:1rem; margin:.5em 0 0; color:#fff;}

/* ---------- Sección de lección ---------- */
.leccion{
  border-top:1px solid var(--borde); padding-top:44px; margin-top:44px; scroll-margin-top:90px;
}
.leccion:first-of-type{border-top:none; margin-top:0;}
.leccion-cabecera{display:flex; align-items:baseline; gap:14px; margin-bottom:6px; flex-wrap:wrap;}
.leccion-num{font-family:var(--fuente-code); color:var(--cian-400); font-size:.85rem; font-weight:700;}
.leccion h2{font-size:1.5rem; margin:0;}
.leccion-intro{color:var(--texto-300); font-size:1rem;}
.caja{
  border:1px solid var(--borde); border-radius:12px; padding:20px 22px; margin:20px 0; background:var(--azul-900);
}
.caja-titulo{
  display:flex; align-items:center; gap:8px; font-family:var(--fuente-display); font-weight:700;
  color:#fff; font-size:.95rem; margin-bottom:10px; text-transform:uppercase; letter-spacing:.04em; font-size:.78rem;
}
.caja-explicacion{border-left:3px solid var(--cian-400);}
.caja-explicacion .caja-titulo{color:var(--cian-300);}
.caja-ejercicio{border-left:3px solid var(--exito); background:linear-gradient(180deg, rgba(55,214,155,.05), var(--azul-900));}
.caja-ejercicio .caja-titulo{color:var(--exito);}
.caja-recursos{border-left:3px solid var(--alerta);}
.caja-recursos .caja-titulo{color:var(--alerta);}
.caja-recursos ul{margin:0; padding-left:18px;}
.caja-recursos li{margin-bottom:6px; font-size:.92rem;}

/* ---------- Bloques de código ---------- */
.bloque-codigo{
  border-radius:10px; overflow:hidden; margin:14px 0; border:1px solid var(--borde);
  background:#081120;
}
.bloque-codigo .etiqueta{
  display:flex; align-items:center; justify-content:space-between;
  padding:7px 14px; font-family:var(--fuente-code); font-size:.7rem; letter-spacing:.06em; text-transform:uppercase;
  background:var(--azul-800); color:var(--texto-500); font-weight:700;
}
.bloque-codigo .etiqueta .lang-html{color:#f97583;}
.bloque-codigo .etiqueta .lang-css{color:var(--cian-400);}
.bloque-codigo .etiqueta .lang-js{color:#ffd866;}
.bloque-codigo .etiqueta .lang-php{color:var(--php-tag);}
.bloque-codigo .etiqueta .lang-sql{color:#7fe6f2;}
.btn-copiar{
  background:none; border:1px solid var(--borde); color:var(--texto-300); font-size:.68rem;
  padding:3px 9px; border-radius:6px; cursor:pointer; font-family:var(--fuente-texto);
}
.btn-copiar:hover{border-color:var(--cian-400); color:var(--cian-300);}
.bloque-codigo pre{margin:0; padding:16px 18px; overflow-x:auto; font-size:.85rem; color:#dbe9f5; line-height:1.55;}
.bloque-codigo .c-tag{color:#f97583;}
.bloque-codigo .c-attr{color:#79b8ff;}
.bloque-codigo .c-str{color:#a5d6ff;}
.bloque-codigo .c-kw{color:#ff7b72;}
.bloque-codigo .c-fn{color:#d2a8ff;}
.bloque-codigo .c-com{color:#5c6b7a; font-style:italic;}
.bloque-codigo .c-var{color:#ffd866;}

/* ---------- Ejercicios interactivos ---------- */
.quiz-pregunta{font-weight:600; color:var(--texto-100); margin-bottom:12px;}
.quiz-opciones{display:flex; flex-direction:column; gap:8px;}
.quiz-op{
  text-align:left; border:1px solid var(--borde); background:var(--azul-800); color:var(--texto-100);
  padding:11px 14px; border-radius:8px; cursor:pointer; font-size:.9rem; font-family:var(--fuente-texto);
}
.quiz-op:hover{border-color:var(--cian-400);}
.quiz-op.correcta{border-color:var(--exito); background:rgba(55,214,155,.12); color:#c8f7e4;}
.quiz-op.incorrecta{border-color:var(--error); background:rgba(239,95,109,.12); color:#ffd0d4;}
.quiz-feedback{margin-top:12px; font-size:.87rem; padding:10px 14px; border-radius:8px; display:none;}
.quiz-feedback.mostrar{display:block;}
.quiz-feedback.ok{background:rgba(55,214,155,.1); color:#c8f7e4; border:1px solid rgba(55,214,155,.3);}
.quiz-feedback.no{background:rgba(239,95,109,.1); color:#ffd0d4; border:1px solid rgba(239,95,109,.3);}

.reto-caja{margin-top:14px;}
.reto-textarea{
  width:100%; min-height:110px; background:#081120; border:1px solid var(--borde); border-radius:8px;
  color:#dbe9f5; font-family:var(--fuente-code); font-size:.85rem; padding:14px; resize:vertical;
}
.reto-acciones{display:flex; gap:10px; margin-top:10px; align-items:center; flex-wrap:wrap;}
.btn-primario{
  background:linear-gradient(135deg, var(--cian-400), var(--cian-500)); color:var(--azul-950); border:none;
  padding:10px 18px; border-radius:8px; font-weight:700; cursor:pointer; font-size:.85rem;
}
.btn-primario:hover{filter:brightness(1.08);}
.btn-secundario{
  background:none; border:1px solid var(--borde); color:var(--texto-300); padding:10px 18px;
  border-radius:8px; cursor:pointer; font-size:.85rem;
}
.btn-secundario:hover{border-color:var(--cian-400); color:var(--cian-300);}
.resultado-vivo{
  border:1px solid var(--borde); border-radius:8px; background:#fff; color:#111; min-height:90px;
  padding:12px; margin-top:10px; font-family:var(--fuente-texto); font-size:.85rem;
}

.check-lista{list-style:none; padding:0; margin:0;}
.check-lista li{
  display:flex; gap:10px; align-items:flex-start; padding:8px 0; cursor:pointer; font-size:.9rem; color:var(--texto-300);
  border-bottom:1px solid var(--borde);
}
.check-lista li:last-child{border-bottom:none;}
.check-lista .caja-check{
  width:18px; height:18px; flex-shrink:0; border:1px solid var(--texto-500); border-radius:5px; margin-top:2px;
  display:flex; align-items:center; justify-content:center; font-size:.7rem; color:var(--azul-950);
}
.check-lista li.marcado .caja-check{background:var(--exito); border-color:var(--exito);}
.check-lista li.marcado{color:var(--texto-100); text-decoration:line-through; text-decoration-color:var(--texto-500);}

/* ---------- Progreso ---------- */
.barra-progreso-wrap{
  border:1px solid var(--borde); border-radius:99px; height:8px; background:var(--azul-800); overflow:hidden; margin-top:8px;
}
.barra-progreso{height:100%; background:linear-gradient(90deg, var(--cian-500), var(--cian-300)); width:0%; transition:width .4s;}

/* ---------- Botonera final de lección ---------- */
.leccion-nav{
  display:flex; justify-content:space-between; gap:12px; margin-top:26px; padding-top:18px; border-top:1px dashed var(--borde);
}
.leccion-completa-btn{
  display:flex; align-items:center; gap:8px; background:none; border:1px solid var(--exito); color:var(--exito);
  padding:9px 16px; border-radius:8px; cursor:pointer; font-size:.82rem; font-weight:700;
}
.leccion-completa-btn.hecha{background:var(--exito); color:var(--azul-950);}

/* ---------- Página principal / hero curso ---------- */
.hero-portada{
  padding:80px 48px 60px; text-align:left; max-width:1100px; position:relative; z-index:1;
}
.hero-portada .pill{margin-bottom:22px; display:inline-block;}
.hero-portada h1{font-size:clamp(2.2rem, 4vw, 3.4rem); max-width:820px; margin:0 0 .4em;}
.hero-portada .acento{color:var(--cian-400);}
.hero-portada p.lead{font-size:1.15rem; color:var(--texto-300); max-width:640px;}
.hero-cta{display:flex; gap:14px; margin-top:30px; flex-wrap:wrap;}
.btn-grande{padding:14px 26px; font-size:.95rem; border-radius:10px;}

.stats-fila{display:flex; gap:0; margin-top:56px; flex-wrap:wrap; border-top:1px solid var(--borde); border-bottom:1px solid var(--borde);}
.stat-item{flex:1; min-width:140px; padding:22px 24px; border-right:1px solid var(--borde);}
.stat-item:last-child{border-right:none;}
.stat-item b{display:block; font-family:var(--fuente-display); font-size:1.8rem; color:var(--cian-300);}
.stat-item span{font-size:.78rem; color:var(--texto-500);}

.ruta-modulos{padding:60px 48px 90px; max-width:1200px; margin:0 auto; position:relative; z-index:1;}
.ruta-titulo{text-align:left; margin-bottom:8px;}
.ruta-sub{color:var(--texto-500); margin-bottom:40px; max-width:600px;}
.grid-modulos{display:grid; grid-template-columns:repeat(auto-fill, minmax(300px,1fr)); gap:20px;}
.tarjeta-modulo{
  border:1px solid var(--borde); border-radius:14px; padding:24px; background:var(--azul-900); position:relative;
  display:flex; flex-direction:column; gap:10px; transition:transform .15s, border-color .15s;
}
.tarjeta-modulo:hover{transform:translateY(-3px); border-color:var(--cian-glow); text-decoration:none;}
.tarjeta-modulo .modulo-num{
  font-family:var(--fuente-code); color:var(--cian-400); font-weight:700; font-size:.8rem;
}
.tarjeta-modulo h3{font-size:1.15rem; margin:0; color:#fff;}
.tarjeta-modulo p{color:var(--texto-500); font-size:.85rem; margin:0;}
.tarjeta-modulo .modulo-tag{
  align-self:flex-start; font-size:.68rem; padding:3px 9px; border-radius:99px; font-weight:700; letter-spacing:.03em;
}
.tag-nuevo{background:rgba(77,216,232,.14); color:var(--cian-300); border:1px solid var(--cian-glow);}
.tag-completo{background:rgba(55,214,155,.12); color:var(--exito); border:1px solid rgba(55,214,155,.3);}

footer.pie{
  border-top:1px solid var(--borde); padding:30px 48px; color:var(--texto-500); font-size:.8rem;
  display:flex; justify-content:space-between; flex-wrap:wrap; gap:10px; position:relative; z-index:1;
}
footer.pie a{color:var(--texto-500);}

/* ---------- Responsive ---------- */
@media (max-width: 900px){
  .btn-menu-movil{display:block;}
  .sidebar{
    position:fixed; left:0; top:var(--header-h); z-index:55; height:calc(100vh - var(--header-h));
    transform:translateX(-105%); transition:transform .25s ease; box-shadow:20px 0 40px rgba(0,0,0,.4);
  }
  .sidebar.abierta{transform:translateX(0);}
  .contenido{padding:28px 20px 70px;}
  .hero-modulo{padding:24px 20px;}
  .hero-portada{padding:50px 20px 40px;}
  .ruta-modulos{padding:40px 20px 60px;}
  footer.pie{padding:24px 20px;}
  .stats-fila{flex-direction:column;}
  .stat-item{border-right:none; border-bottom:1px solid var(--borde);}
}
/* ============================================================
   FIXES RESPONSIVE DIGITOMENORES
   ============================================================ */

/* 1. Sidebar móvil: tu JS usa .activo, no .abierta */
.sidebar.activo {
  transform: translateX(0);
}

/* 2. Layout móvil: evitar que el sidebar aplaste el contenido */
@media (max-width: 900px) {
  .app-shell {
    display: block; /* Elimina el layout horizontal */
  }
}

/* 3. Grid de módulos: evitar overflow en pantallas pequeñas */
@media (max-width: 900px) {
  .grid-modulos {
    grid-template-columns: 1fr; /* Una columna limpia */
  }
}

/* 4. Hero portada: reducir padding en móvil */
@media (max-width: 900px) {
  .hero-portada {
    padding: 40px 20px 40px;
  }
}

/* 5. Header móvil: reorganizar elementos */
@media (max-width: 900px) {
  .top-header {
    flex-direction: column;
    align-items: flex-start;
    height: auto;
    padding: 12px 20px;
  }

  .header-acciones {
    margin-top: 10px;
  }
}

/* 6. Botón menú móvil visible */
@media (max-width: 900px) {
  .btn-menu-movil {
    display: block;
  }
}

/* 7. Sidebar móvil: corregir posición y sombra */
@media (max-width: 900px) {
  .sidebar {
    position: fixed;
    left: 0;
    top: var(--header-h);
    z-index: 55;
    height: calc(100vh - var(--header-h));
    transform: translateX(-105%);
    transition: transform .25s ease;
    box-shadow: 20px 0 40px rgba(0,0,0,.4);
  }
}

/* 8. Stats en móvil: evitar columnas apretadas */
@media (max-width: 900px) {
  .stats-fila {
    flex-direction: column;
  }

  .stat-item {
    border-right: none;
    border-bottom: 1px solid var(--borde);
  }
}

/* 9. Footer móvil */
@media (max-width: 900px) {
  footer.pie {
    padding: 24px 20px;
  }
}

/* 10. Tarjetas de módulos: mejorar legibilidad en móvil */
@media (max-width: 900px) {
  .tarjeta-modulo {
    padding: 20px;
    gap: 8px;
  }

  .tarjeta-modulo h3 {
    font-size: 1.1rem;
  }

  .tarjeta-modulo p {
    font-size: .9rem;
  }
}

/* 11. Texto de sección ruta */
@media (max-width: 900px) {
  .ruta-titulo {
    font-size: 1.4rem;
  }

  .ruta-sub {
    font-size: 1rem;
  }
}
/* --- CENTRADO GLOBAL EN MÓVIL (vertical y horizontal) --- */
@media (max-width: 900px) {

  /* Centrar todo el contenido */
  .contenido {
    padding: 20px;
    max-width: 700px;       /* límite para que no se abra demasiado */
    margin: 0 auto;         /* centrado horizontal */
  }

  /* Centrar hero */
  .hero-portada {
    max-width: 700px;
    margin: 0 auto;
    text-align: left;       /* mantiene tu estilo */
  }

  /* Centrar sección de módulos */
  .ruta-modulos {
    max-width: 700px;
    margin: 0 auto;
  }

  /* Centrar tarjetas */
  .grid-modulos {
    grid-template-columns: 1fr;
    justify-items: center;  /* centra cada tarjeta */
  }

  .tarjeta-modulo {
    width: 100%;
    max-width: 600px;       /* evita que se estiren demasiado */
  }
}