/* ============================================================
   Aprende IA — hoja de estilos compartida (edición profesional)
   Paleta: azul marino + acento dorado, pensada para un público de
   contadores públicos colegiados. Conserva las clases .card /
   .mod-list / .cards del resto de tus sitios para mantener la
   misma familia visual.
   ============================================================ */

:root{
    --navy-950:#0a1930;   /* fondo header, texto fuerte */
  --navy-800:#132a4d;
    --navy-600:#1d4ed8;   /* acento principal */
  --navy-400:#6b93f2;
    --navy-100:#e3ebfd;
    --oro:#b4881f;        /* logros / constancia */
  --oro-suave:#f6ecd2;
    --gris-fondo:#f5f6fa;
    --gris-texto:#333a48;
    --gris-suave:#69707e;
    --borde:#e2e6ee;
    --ok:#047857;
    --bloqueado:#a3a9b7;
    --radio:14px;
}

*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
    margin:0;
    font-family:'Nunito','Segoe UI',Arial,sans-serif;
    background:var(--gris-fondo);
    color:var(--gris-texto);
    line-height:1.6;
}
a{color:inherit}
img{max-width:100%}

/* ---------- Barra superior ---------- */
.topbar{
    display:flex;
    align-items:center;
    justify-content:space-between;
    gap:12px;
    padding:14px 22px;
    background:var(--navy-950);
    color:#fff;
    flex-wrap:wrap;
}
.topbar .marca{display:flex;align-items:center;gap:10px;font-weight:800;font-size:1.02rem}
.topbar .marca .tag{
    font-size:.68rem;
    font-weight:700;
    letter-spacing:.06em;
    text-transform:uppercase;
    background:rgba(255,255,255,.12);
    border:1px solid rgba(255,255,255,.25);
    padding:2px 9px;
    border-radius:20px;
    opacity:.85;
}
.topbar .estado{display:flex;align-items:center;gap:10px;font-size:.82rem}
.topbar .nivel-pill{
    background:rgba(180,136,31,.22);
    border:1px solid rgba(180,136,31,.5);
    color:#f4d998;
    padding:5px 12px;
    border-radius:20px;
    font-weight:700;
}
.topbar .pts-pill{
    background:rgba(255,255,255,.1);
    border:1px solid rgba(255,255,255,.22);
    padding:5px 12px;
    border-radius:20px;
    font-weight:700;
}

/* ---------- Header / hero ---------- */
.hero{
    background:linear-gradient(135deg,var(--navy-950),var(--navy-800) 60%,var(--navy-600));
    color:#fff;
    padding:38px 20px 28px;
    text-align:center;
}
.hero .kicker{
    display:inline-block;
    font-size:.76rem;
    letter-spacing:.08em;
    text-transform:uppercase;
    background:rgba(255,255,255,.14);
    border:1px solid rgba(255,255,255,.3);
    padding:4px 14px;
    border-radius:20px;
    margin-bottom:14px;
}
.hero h1{font-size:clamp(1.5rem,3.6vw,2.15rem);font-weight:800;margin:0 0 8px}
.hero p.desc{font-size:.97rem;opacity:.85;max-width:620px;margin:0 auto;line-height:1.65}

/* fila de estadísticas */
.stats-row{
    display:flex;
    gap:12px;
    justify-content:center;
    flex-wrap:wrap;
    max-width:640px;
    margin:24px auto 0;
}
.stat-pill{
    background:rgba(255,255,255,.08);
    border:1px solid rgba(255,255,255,.22);
    border-radius:12px;
    padding:10px 20px;
    min-width:110px;
}
.stat-pill b{display:block;font-size:1.25rem;font-weight:800}
.stat-pill span{font-size:.72rem;opacity:.8;text-transform:uppercase;letter-spacing:.04em}

/* barra de progreso general */
.progreso-wrap{max-width:560px;margin:26px auto 0}
.progreso-bar{
    background:rgba(255,255,255,.18);
    border-radius:20px;
    height:12px;
    overflow:hidden;
    border:1px solid rgba(255,255,255,.3);
}
.progreso-fill{
    height:100%;
    background:linear-gradient(90deg,var(--navy-400),var(--oro));
    border-radius:20px;
    transition:width .4s ease;
    width:0%;
}
.progreso-txt{font-size:.85rem;opacity:.85;margin-top:8px}

/* ---------- Tarjeta "continúa donde lo dejaste" ---------- */
.continuar-wrap{max-width:720px;margin:-26px auto 0;padding:0 20px 10px;position:relative;z-index:2}
.continuar-card{
    background:#fff;
    border-radius:var(--radio);
    box-shadow:0 12px 30px rgba(10,25,48,.18);
    border:1px solid var(--borde);
    padding:22px 24px;
    display:flex;
    align-items:center;
    gap:18px;
    flex-wrap:wrap;
}
.continuar-card .icono{
    width:58px;height:58px;border-radius:14px;
    display:flex;align-items:center;justify-content:center;
    font-size:1.6rem;color:#fff;flex-shrink:0;
}
.continuar-card .info{flex:1;min-width:200px}
.continuar-card .eyebrow{font-size:.72rem;text-transform:uppercase;letter-spacing:.06em;color:var(--gris-suave);font-weight:700;margin-bottom:2px}
.continuar-card h3{margin:0 0 4px;font-size:1.1rem;color:var(--navy-950)}
.continuar-card p{margin:0;font-size:.86rem;color:var(--gris-suave)}
.continuar-card .btn{flex-shrink:0}

/* ---------- Navegación de vuelta ---------- */
.volver{
    display:inline-block;
    margin:18px 20px 0;
    font-size:.9rem;
    color:var(--navy-600);
    text-decoration:none;
    font-weight:700;
}
.volver:hover{text-decoration:underline}

/* ---------- Contenedor general ---------- */
main{max-width:980px;margin:0 auto;padding:24px 20px 60px}
h2.section-title{
    font-size:.85rem;
    text-transform:uppercase;
    letter-spacing:.06em;
    color:var(--gris-suave);
    border-bottom:2px solid var(--navy-100);
    padding-bottom:8px;
    margin:34px 0 16px;
    display:flex;
    align-items:baseline;
    justify-content:space-between;
    gap:10px;
}
h2.section-title .sub{font-size:.78rem;text-transform:none;letter-spacing:0;font-weight:600;color:var(--bloqueado)}

/* ---------- Ruta de módulos (badges numerados + conector) ---------- */
.ruta-nav{
    display:flex;
    align-items:center;
    gap:0;
    flex-wrap:wrap;
    justify-content:center;
    margin:22px 0;
    position:relative;
}
.ruta-nav .segmento{display:flex;align-items:center}
.ruta-nav .linea{width:26px;height:3px;background:var(--borde);flex-shrink:0}
.ruta-nav .linea.hecha{background:var(--oro)}
.ruta-nav a{text-decoration:none}
.badge{
    width:42px;height:42px;
    border-radius:50%;
    display:flex;align-items:center;justify-content:center;
    font-weight:800;font-size:.95rem;
    color:#fff;
    box-shadow:0 2px 6px rgba(0,0,0,.15);
    border:2px solid rgba(255,255,255,.6);
}
.badge.bloqueado{background:var(--bloqueado);box-shadow:none;border-color:transparent;cursor:not-allowed}
@media(max-width:560px){.ruta-nav .linea{width:14px}}

/* ---------- Tarjetas de módulo ---------- */
.cards{display:grid;grid-template-columns:repeat(auto-fit,minmax(280px,1fr));gap:18px}
.card{
    background:#fff;
    border-radius:var(--radio);
    padding:22px;
    box-shadow:0 2px 10px rgba(10,25,48,.06);
    border-top:4px solid var(--navy-600);
    transition:.2s;
    position:relative;
}
.card:hover{transform:translateY(-3px);box-shadow:0 8px 22px rgba(10,25,48,.12)}
.card.bloqueada{opacity:.55}
.card.bloqueada:hover{transform:none;box-shadow:0 2px 10px rgba(10,25,48,.06)}
.card h3{font-size:1.05rem;font-weight:800;color:var(--navy-950);margin:0 0 8px;display:flex;align-items:center;gap:8px}
.card p{font-size:.9rem;line-height:1.55;color:#666;margin-bottom:12px}
.card .xp-pill{
    display:inline-block;
    font-size:.75rem;
    font-weight:800;
    color:var(--navy-800);
    background:var(--navy-100);
    padding:3px 10px;
    border-radius:20px;
    margin-bottom:10px;
}
.card .bloque-tag{
    display:inline-block;
    font-size:.68rem;
    font-weight:700;
    letter-spacing:.05em;
    text-transform:uppercase;
    color:var(--gris-suave);
    margin-bottom:6px;
}
.mod-list{list-style:none;margin:10px 0;padding:0}
.mod-list li{display:flex;align-items:center;gap:8px;font-size:.88rem;padding:4px 0}
.mod-list .ok{color:var(--ok);font-weight:800}
.card a.btn, a.btn{
    display:inline-block;
    margin-top:8px;
    padding:9px 20px;
    background:var(--navy-600);
    color:#fff;
    border-radius:8px;
    font-size:.88rem;
    font-weight:700;
    text-decoration:none;
    transition:.2s;
    border:none;
    cursor:pointer;
}
.card a.btn:hover, a.btn:hover{background:var(--navy-800)}
.btn.completo{background:var(--ok)}
.btn.dorado{background:var(--oro)}
.btn.dorado:hover{background:#93690f}
.btn[aria-disabled="true"]{background:var(--bloqueado);pointer-events:none}

/* ---------- Especializaciones ---------- */
.especializaciones{display:grid;grid-template-columns:repeat(auto-fit,minmax(230px,1fr));gap:16px}
.especializacion{
    background:#fff;
    border-radius:var(--radio);
    padding:20px;
    box-shadow:0 2px 10px rgba(10,25,48,.06);
    border:1px solid var(--borde);
    text-align:center;
}
.especializacion.proximamente{opacity:.6}
.especializacion .monograma{
    width:52px;height:52px;border-radius:50%;
    display:flex;align-items:center;justify-content:center;
    margin:0 auto 12px;
    font-weight:800;color:#fff;font-size:1.05rem;
}
.especializacion h4{margin:0 0 4px;font-size:.98rem;color:var(--navy-950)}
.especializacion p{margin:0 0 10px;font-size:.82rem;color:var(--gris-suave)}
.especializacion .estado{
    display:inline-block;font-size:.7rem;font-weight:700;
    letter-spacing:.04em;text-transform:uppercase;
    padding:3px 10px;border-radius:20px;
}
.especializacion .estado.disponible{background:var(--navy-100);color:var(--navy-800)}
.especializacion .estado.proxima{background:#eef0f4;color:var(--gris-suave)} .especializacion .requisito{display:block;margin-top:8px;font-size:.74rem;color:var(--navy-600);text-decoration:none;font-weight:700} .especializacion .requisito:hover{text-decoration:underline}

/* ---------- Constancia ---------- */
.constancia-card{
    background:linear-gradient(135deg,#fff,var(--oro-suave));
    border:1px solid #e7d6a5;
    border-radius:var(--radio);
    padding:26px;
    display:flex;
    align-items:center;
    gap:20px;
    flex-wrap:wrap;
}
.constancia-card .icono{font-size:2.4rem}
.constancia-card .info{flex:1;min-width:220px}
.constancia-card h3{margin:0 0 6px;color:var(--navy-950)}
.constancia-card p{margin:0;font-size:.88rem;color:var(--gris-suave)}

/* ---------- Contenido de lección ---------- */
.leccion-header{
    background:linear-gradient(135deg,var(--navy-950),var(--navy-600));
    color:#fff;
    padding:26px 20px;
    text-align:center;
}
.leccion-header h1{margin:0 0 6px;font-size:clamp(1.3rem,3.5vw,1.8rem)}
.leccion-header .xp-pill{background:rgba(255,255,255,.18);color:#fff}

.bloque{
    background:#fff;
    border-radius:var(--radio);
    padding:22px 24px;
    margin:20px 0;
    box-shadow:0 2px 10px rgba(10,25,48,.05);
    border-left:5px solid var(--navy-600);
}
.bloque.practica{border-left-color:var(--oro)}
.bloque.juego{border-left-color:var(--ok)}
.bloque h2{margin-top:0;font-size:1.15rem;color:var(--navy-950)}
.bloque ul, .bloque ol{padding-left:22px}
.bloque li{margin-bottom:6px}
.tip{
    background:#fffbea;
    border:1px solid #fde68a;
    border-radius:10px;
    padding:12px 16px;
    font-size:.9rem;
    margin:14px 0;
}
.ejemplo{
    background:#f4f6fb;
    border:1px solid var(--borde);
    border-radius:10px;
    padding:14px 16px;
    font-size:.9rem;
    margin:12px 0;
    white-space:pre-wrap;
    font-family:'Courier New',monospace;
}
.comparacion{display:grid;grid-template-columns:1fr 1fr;gap:14px;margin:14px 0}
@media(max-width:600px){.comparacion{grid-template-columns:1fr}}
.comparacion .col{border-radius:10px;padding:14px 16px;font-size:.88rem}
.comparacion .malo{background:#fef2f2;border:1px solid #fecaca}
.comparacion .bueno{background:#ecfdf5;border:1px solid #a7f3d0}
.comparacion .col strong{display:block;margin-bottom:6px}

/* ---------- Quiz / mini-evaluación ---------- */
.pregunta{margin-bottom:22px}
.pregunta p.enunciado{font-weight:700;margin-bottom:10px}
.opciones{display:flex;flex-direction:column;gap:8px}
.opcion{
    text-align:left;
    background:#f4f6fb;
    border:1px solid var(--borde);
    border-radius:10px;
    padding:11px 14px;
    cursor:pointer;
    font-size:.92rem;
    font-family:inherit;
    transition:.15s;
}
.opcion:hover{border-color:var(--navy-400)}
.opcion.correcta{background:#ecfdf5;border-color:var(--ok);font-weight:700}
.opcion.incorrecta{background:#fef2f2;border-color:#ef4444}
.opcion:disabled{cursor:default}

#resultado-quiz{
    margin-top:18px;
    padding:16px;
    border-radius:10px;
    font-weight:700;
    display:none;
}
#resultado-quiz.mostrar{display:block}
#resultado-quiz.aprobado{background:#ecfdf5;color:var(--ok);border:1px solid #a7f3d0}
#resultado-quiz.reprobado{background:#fef2f2;color:#b91c1c;border:1px solid #fecaca}

.nav-final{display:flex;justify-content:space-between;align-items:center;margin-top:28px;flex-wrap:wrap;gap:10px}

footer{
    text-align:center;
    font-size:.8rem;
    color:var(--gris-suave);
    padding:26px 20px 40px;
}

/* ---------- Constancia imprimible ---------- */
.constancia-doc{
    max-width:900px;
    margin:30px auto;
    background:#fff;
    border:2px solid var(--oro);
    border-radius:6px;
    padding:56px 60px;
    text-align:center;
    position:relative;
}
.constancia-doc::before{
    content:'';
    position:absolute;inset:10px;
    border:1px solid #e7d6a5;
    border-radius:4px;
    pointer-events:none;
}
.constancia-doc .marca{font-size:.85rem;letter-spacing:.1em;text-transform:uppercase;color:var(--gris-suave);font-weight:700}
.constancia-doc h1{font-size:1.9rem;color:var(--navy-950);margin:14px 0 4px}
.constancia-doc .sub{color:var(--gris-suave);font-size:.95rem;margin-bottom:26px}
.constancia-doc .nombre{font-size:2rem;font-weight:800;color:var(--navy-800);margin:18px 0;font-family:Georgia,'Times New Roman',serif;border-bottom:2px solid var(--oro);display:inline-block;padding-bottom:6px}
.constancia-doc .cuerpo{max-width:600px;margin:0 auto 24px;font-size:.98rem;line-height:1.7;color:var(--gris-texto)}
.constancia-doc .modulos-list{font-size:.82rem;color:var(--gris-suave);margin:0 0 26px}
.constancia-doc .firma{display:flex;justify-content:space-between;max-width:560px;margin:34px auto 0;font-size:.82rem}
.constancia-doc .firma div{border-top:1px solid var(--gris-suave);padding-top:6px;min-width:200px}
@media print{
    .no-imprimir{display:none !important}
    body{background:#fff}
    .constancia-doc{border-color:#000;box-shadow:none;margin:0}
}