/* --- APUNTES --- */
#notesContainer { display: grid; grid-template-columns: repeat(auto-fit, minmax(280px, 1fr)); gap: 20px; }
article {
    margin-left: 80px;
    background: #242831;
    border-radius: 12px;
    padding: 20px;
    box-shadow: 0 5px 15px rgba(0,0,0,0.4);
    transition: all 0.3s ease;
    animation: fadeIn 0.5s ease;
}
article:hover { transform: translateY(-8px) scale(1.02); box-shadow: 0 15px 25px rgba(33,161,241,0.5); }
article h3 { color: #61dafb; margin-bottom: 10px; text-shadow: 0 0 5px #61dafb; }
article p { margin-bottom: 10px; }
article a { color: #80c0ff; text-decoration: none; font-weight: bold; transition: color 0.3s ease, text-shadow 0.3s ease; }
article a:hover { color: #21a1f1; text-shadow: 0 0 8px #21a1f1; text-decoration: underline; }

/* Grid por defecto (inicio / tarjetas generales) */
#notesContainer.grid-mode {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 20px;
}

/* Recursos / Actividades → filas de 3 */
#notesContainer.resources-mode {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 20px 10px;
}